[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Camara, Helder"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "D04"]
[EventDate "1972.05.20"]
[PlyCount "95"]

1.d4 d5 2.Nf3 c6 3.e3 Nf6 4.Bd3 Bg4 5.O-O Nbd7 6.h3 Bh5 7.Be2 Bxf3 8.Bxf3 
e5 9.c4 dxc4 10.Nd2 Nb6 11.dxe5 Nfd7 12.e6 fxe6 13.Qe2 Ne5 14.Be4 Qf6 15.
f4 Nf7 16.Nxc4 Nxc4 17.Qxc4 Nd6 18.Qb3 Be7 19.Bf3 O-O 20.Bd2 c5 21.Bc3 Qf7
22.Be5 Rab8 23.Rad1 Rfd8 24.Bg4 c4 25.Qc2 h5 26.Bf3 b5 27.Qe2 h4 28.Bh5 g6
29.Bg4 Rb6 30.e4 Re8 31.Kh1 Bf8 32.Qf3 Qb7 33.Rde1 Ra6 34.Qf2 Qh7 35.a3 
Nb7 36.Bd4 Rc6 37.f5 e5 38.fxg6 Qxg6 39.Bd7 exd4 40.Bxc6 Qxc6 41.Qf7+ Kh8 
42.Rf6 Qxf6 43.Qxf6+ Bg7 44.Qc6 Re7 45.Qxb5 c3 46.bxc3 dxc3 47.e5 Rc7 48.
Qb3 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Carvajal Aliaga, Juan"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[ECO "E76"]
[EventDate "1972.05.20"]
[PlyCount "97"]

1.d4 c5 2.d5 d6 3.c4 g6 4.Nc3 Bg7 5.e4 a6 6.a4 Nf6 7.f4 O-O 8.Nf3 e5 9.Bd3
Bg4 10.fxe5 dxe5 11.Be3 Qd6 12.O-O Nh5 13.Qb3 Nd7 14.Qxb7 Rfc8 15.Qb3 Nf4 
16.Qc2 Rab8 17.Rab1 Rb7 18.b3 Rcb8 19.Na2 Bh6 20.Kh1 Qf6 21.Nc1 Qg7 22.Qd2
g5 23.Rb2 Qg6 24.h3 Bxf3 25.Rxf3 Bf8 26.Rf1 h5 27.Bxf4 gxf4 28.Qe2 Nf6 29.
Qf3 h4 30.Bc2 Bd6 31.Re1 Kg7 32.Nd3 Nd7 33.Qf2 Qg3 34.Qd2 Kf6 35.Rf1 Ke7 
36.Bd1 Qg5 37.Qa5 Qg6 38.Re1 Bc7 39.Qc3 a5 40.Bg4 Qd6 41.Qc2 Nf6 42.Bd1 
Bb6 43.Nxf4 Rh8 44.Nd3 Rbb8 45.Qc3 Bc7 46.Rf2 Rbg8 47.Rf5 Rg3 48.Bf3 Rh7 
49.Qxe5+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Godoy Bugueno, David"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1/2-1/2"]
[ECO "A88"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.d4 f5 2.c4 Nf6 3.Nc3 d6 4.Nf3 c6 5.g3 Qc7 6.d5 g6 7.Bg2 Bg7 8.O-O O-O 9.
Bf4 Na6 10.Rc1 Ne4 11.Nxe4 fxe4 12.Ng5 Bxb2 13.Rc2 Bg7 14.dxc6 bxc6 15.c5 
Nxc5 16.Rxc5 e5 17.Rxc6 Qxc6 18.Bxe4 Qe8 19.Qb3+ Kh8 20.Be3 Bf5 21.Bxa8 
Qxa8 22.g4 Bxg4 23.f3 Bh6 24.fxg4 Rxf1+ 25.Kxf1 Qh1+ 26.Kf2 Qxh2+ 27.Kf3 
Bxg5 28.Qb8+ Kg7 29.Qxa7+ Kf8 30.Qb8+ Kf7 31.Bxg5 e4+ 32.Ke3 Qg1+ 33.Kxe4 
Qxg4+ 34.Bf4 Qxe2+ 35.Kd4 Qf2+ 36.Be3 Qxa2 37.Qc7+ Ke6 38.Qc8+ Kf6 39.Qf8+
Qf7 40.Qxd6+ Kg7 41.Bf4 h6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Juarez, Carlos Eleodoro"]
[Black "Debarnot, Roberto Luis"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "115"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.c4 Bb4+ 7.Bd2 Bxd2+ 8.
Qxd2 Qb6 9.Nf3 Nc6 10.Nc3 d6 11.O-O O-O 12.b3 Rd8 13.Rad1 Bd7 14.Bb1 Be8 
15.Qf4 Qa5 16.Ne2 Ne5 17.h3 Nxf3+ 18.Qxf3 b5 19.cxb5 axb5 20.Qe3 Bc6 21.
Ng3 Rac8 22.Qg5 Qc3 23.Qh4 Qb4 24.Rfe1 h6 25.Nh5 Nxh5 26.Qxh5 Bb7 27.Qh4 
d5 28.Re3 Kf8 29.Rg3 Qe7 30.Qg4 Qf6 31.Rf3 Qe7 32.e5 d4 33.Be4 Bxe4 34.
Qxe4 Kg8 35.Rxd4 Rxd4 36.Qxd4 Qg5 37.Rc3 Rd8 38.Qe4 g6 39.g3 Qd2 40.Rc2 
Qd1+ 41.Kg2 Qb1 42.Re2 Qd1 43.Re3 Qa1 44.Qb7 Rd1 45.Qxb5 Rg1+ 46.Kf3 Qxa2 
47.Qd3 Qa8+ 48.Qe4 Qd8 49.Rd3 Qg5 50.Re3 Qd8 51.b4 Qd1+ 52.Re2 Qb3+ 53.Re3
Qd1+ 54.Re2 Qb3+ 55.Re3 Qd1+ 56.Re2 Qb3+ 57.Re3 Qd1+ 58.Re2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Mecking, Henrique"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2340"]
[ECO "B45"]
[EventDate "1972.05.20"]
[PlyCount "88"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 Nxd5 10.Bd2 Qh4 11.Qf3 Nd4 12.Qd3 O-O 13.O-O-O Rd8 14.g3 
Qg4 15.h3 Qf3 16.Qxf3 Nxf3 17.Bg2 Nxd2 18.Rxd2 Kf8 19.Rhd1 Rb8 20.Nxd5 
exd5 21.Rxd5 Rxd5 22.Rxd5 Ke7 23.b3 b6 24.Rd4 Bd7 25.h4 g6 26.c4 Rc8 27.
Kb2 f5 28.Kc3 h6 29.b4 Rf8 30.c5 Rf6 31.Kc4 Re6 32.Rd3 Rf6 33.Kc3 Re6 34.
Kd4 Kd8 35.Re3 Rf6 36.Bd5 Rf8 37.Be6 Bc6 38.Ke5 Ke7 39.h5 gxh5 40.Bxf5 Rd8
41.Be4 Bb5 42.Bd5 Rc8 43.Kd4+ Kf6 44.Re6+ Kf5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Paiva, Jose de Pinto"]
[Black "Asfora, Eduardo"]
[Result "1/2-1/2"]
[ECO "B34"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.Nb3 
a5 9.a4 d5 10.exd5 Nb4 11.Bf3 Qc7 12.O-O Rd8 13.Rc1 Nfxd5 14.Nxd5 Nxd5 15.
Bxd5 e6 16.c4 exd5 17.cxd5 Qd6 18.Qf3 Qb4 19.Rc7 Bf5 20.Nc5 b6 21.Nb7 Rd7 
22.d6 Rxc7 23.dxc7 Be4 24.Rd1 Bxf3 25.Rd8+ Qf8 26.gxf3 Be5 27.Bxb6 Rc8 28.
Bc5 Bxc7 29.Rxf8+ Rxf8 30.Bxf8 Kxf8 31.Nc5 Ke7 32.Nd3 Ke6 33.b4 axb4 34.
Nxb4 Ke5 35.a5 Kd6 36.a6 Bb8 37.f4 Kc5 38.Nd3+ Kb6 39.Ne5 Kxa6 40.Nxf7 
Bxf4 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Panno, Oscar"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2425"]
[ECO "B36"]
[EventDate "1972.05.20"]
[PlyCount "113"]

1.c4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 d6 7.Be2 Nxd4 8.Qxd4 
Bg7 9.Bg5 O-O 10.Qe3 Qa5 11.O-O Be6 12.Rfc1 Rfc8 13.b3 a6 14.a4 Rab8 15.
Rab1 Qd8 16.h4 h5 17.Re1 Bd7 18.Rbd1 Nh7 19.Nd5 Nxg5 20.Qxg5 Kf8 21.a5 e6 
22.Nb6 Qxg5 23.hxg5 Rd8 24.Rd3 Bc6 25.Bf1 Be5 26.g3 Kg8 27.f4 Bg7 28.Bg2 
Bf8 29.Bf3 Kg7 30.Kg2 Re8 31.Rde3 Be7 32.Rd3 Rh8 33.Rh1 Rbd8 34.b4 Rde8 
35.Rb3 Bd8 36.b5 axb5 37.cxb5 Bxb6 38.bxc6 Bxa5 39.cxb7 Bc7 40.Rc3 Re7 41.
Rb1 Rb8 42.Rc6 Rd7 43.Be2 d5 44.exd5 exd5 45.Ba6 Kf8 46.Rbc1 Bd6 47.Rc8+ 
Rd8 48.Rd1 Ke7 49.Rxd5 Kd7 50.Kf3 Ke6 51.Rd4 Ke7 52.Re4+ Kf8 53.Re3 Be7 
54.Rd3 Re8 55.Rd7 Bb4 56.Rcc7 Be7 57.Bc4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Silva Nazzari, Roberto"]
[Black "Quinones, Oscar Carillo"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2290"]
[ECO "B22"]
[EventDate "1972.05.20"]
[PlyCount "68"]

1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.c5 Nd5 5.Nc3 e6 6.d4 Nxc3 7.bxc3 d6 8.cxd6 
cxd6 9.Nf3 Nc6 10.exd6 Bxd6 11.Bd3 Qa5 12.Qc2 Bd7 13.O-O Rc8 14.Bd2 Qc7 
15.Qd1 Ne7 16.Re1 Ng6 17.Qb3 O-O 18.Be4 Bc6 19.Bxc6 Qxc6 20.Rab1 b6 21.
Rec1 Bf4 22.c4 Bxd2 23.Nxd2 Nf4 24.d5 Ne2+ 25.Kf1 Nxc1 26.dxc6 Nxb3 27.
axb3 Rfd8 28.Ne4 Rxc6 29.Ra1 a5 30.c5 f5 31.Nd6 Rd7 32.Nc4 Rxc5 33.Nxb6 
Rb7 34.Nc4 Rxb3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Silva Sanchez, Carlos"]
[Black "Gamarra Caceres, Carlos"]
[Result "1/2-1/2"]
[ECO "B23"]
[EventDate "1972.05.20"]
[PlyCount "88"]

1.e4 c5 2.Nc3 g6 3.f4 Bg7 4.Nf3 Nc6 5.Bb5 d6 6.O-O e6 7.Qe1 Ne7 8.d3 Bd7 
9.f5 gxf5 10.Qg3 Bxc3 11.bxc3 Qc7 12.Bg5 O-O-O 13.exf5 Rde8 14.fxe6 fxe6 
15.Bxe7 Nxe7 16.Bxd7+ Qxd7 17.Qh3 Nd5 18.Ng5 e5 19.Qxd7+ Kxd7 20.c4 Nb4 
21.Rf2 h6 22.Ne4 Ref8 23.Rb1 Rxf2 24.Kxf2 Rf8+ 25.Ke2 b6 26.c3 Nc6 27.a4 
Ne7 28.a5 d5 29.Nd2 Kc6 30.axb6 axb6 31.Nf3 Ng6 32.cxd5+ Kxd5 33.Rxb6 Nf4+
34.Kd2 Nxd3 35.Kxd3 e4+ 36.Ke3 exf3 37.gxf3 Kc4 38.Rxh6 Kxc3 39.f4 c4 40.
Rc6 Rh8 41.f5 Rh3+ 42.Ke4 Rxh2 43.f6 Rf2 44.Kd5 Kd3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Szmetan, Jorge"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[ECO "B99"]
[EventDate "1972.05.20"]
[PlyCount "70"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.a3 Rb8 14.h4 b4 15.axb4 
Rxb4 16.Bh3 Qc5 17.Nb3 Qb6 18.h5 Nc5 19.Nxc5 Qxc5 20.g6 O-O 21.gxh7+ Kh8 
22.h6 g6 23.Qd3 Qb6 24.b3 Bb7 25.f5 Bg5+ 26.Kb2 gxf5 27.exf5 Bxh1 28.fxe6 
Rb8 29.Na2 Bf6+ 30.Kc1 Rd4 31.Qf5 Rxd1+ 32.Kxd1 Qd4+ 33.Kc1 Qe3+ 34.Kb1 
Rxb3+ 35.cxb3 Be4+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "1"]
[White "Vasquez De la Paz, Julio"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2420"]
[ECO "E63"]
[EventDate "1972.05.20"]
[PlyCount "54"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.Nf3 Nc6 7.O-O a6 8.b3 Rb8 
9.Bb2 b5 10.cxb5 axb5 11.d5 Na5 12.e3 c5 13.dxc6 Nxc6 14.Rc1 Bd7 15.Nd4 
Nxd4 16.Qxd4 Ng4 17.Qb4 Ne5 18.Rcd1 Bg4 19.f3 Bf5 20.Ba1 Nd3 21.Qh4 Bf6 
22.Qh6 e5 23.f4 Bg7 24.Qg5 Bf6 25.Qh6 Bg7 26.Qg5 Bf6 27.Qh6 Bg7 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Alborta Tito, Eduardo"]
[Black "Vasquez De la Paz, Julio"]
[Result "0-1"]
[BlackElo "2270"]
[ECO "B92"]
[EventDate "1972.05.20"]
[PlyCount "92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.Bg5 
Nbd7 9.O-O Be7 10.f4 Rc8 11.Kh1 O-O 12.Nd2 exf4 13.Bxf4 Ne5 14.Nf3 Qa5 15.
Nd4 Rfd8 16.Qe1 Kh8 17.Qg3 Ng6 18.Rad1 Qb6 19.Bc1 Qa5 20.Nf5 Bxf5 21.Rxf5 
Rc5 22.Rxc5 Qxc5 23.h4 h6 24.Rf1 Qd4 25.Bf3 b5 26.a3 a5 27.Rd1 Qc5 28.Qe1 
b4 29.Be3 Qe5 30.axb4 axb4 31.Nd5 Nxd5 32.Rxd5 Qxb2 33.Qd2 Qf6 34.h5 Ne5 
35.Be2 Qh4+ 36.Kg1 Qxe4 37.Rd4 Qf5 38.Rxb4 Bg5 39.Bxg5 Qxg5 40.Qc3 Qf5 41.
Qd2 Qg5 42.Qc3 Re8 43.Ra4 Rb8 44.Qc7 Rb1+ 45.Kh2 Re1 46.Qxd6 Rxe2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Asfora, Eduardo"]
[Black "Camara, Helder"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "107"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nc6 6.Nxc6 dxc6 7.Be3 e5 8.Nd2 
Be6 9.O-O Nf6 10.f3 Bd6 11.Nc4 Bc7 12.a4 b5 13.Na3 Bb6 14.Qe2 O-O 15.Rfd1 
Nd7 16.c4 Bxe3+ 17.Qxe3 b4 18.Nc2 a5 19.b3 Qe7 20.Ne1 Rfd8 21.Bc2 Nc5 22.
Nd3 Nxd3 23.Rxd3 Rxd3 24.Bxd3 Rd8 25.Rd1 Rd4 26.Bc2 Rxd1+ 27.Bxd1 Qd6 28.
Bc2 c5 29.Qd3 Qe7 30.Qd2 g6 31.g3 Kg7 32.Kf2 Bc8 33.Qd5 Bb7 34.Qd2 Bc6 35.
Kg2 h5 36.h4 Qe6 37.Kg1 Qf6 38.Kg2 Qe7 39.Kf2 f6 40.Kg1 Qe6 41.Qd8 Bd7 42.
Bd3 Qd6 43.Bf1 Qd4+ 44.Kh2 Qb2+ 45.Bg2 Be6 46.g4 Qf2 47.Qe7+ Bf7 48.Kh3 
hxg4+ 49.fxg4 Qe3+ 50.Kh2 Qxb3 51.g5 fxg5 52.hxg5 Qxc4 53.Qxe5+ Kh7 54.Bf3
0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[ECO "B56"]
[EventDate "1972.05.20"]
[PlyCount "127"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+ Bd7 7.Bxd7+ Qxd7 8.
Nf5 Nxe4 9.Nxe4 Qxf5 10.Nxd6+ Bxd6 11.Qxd6 Nc6 12.O-O Qd7 13.Qxd7+ Kxd7 
14.Be3 Ke6 15.Rfd1 Rhd8 16.c3 f5 17.f3 b6 18.Kf1 Na5 19.b3 Rac8 20.Rxd8 
Rxd8 21.Ke2 Rc8 22.Rc1 f4 23.Bf2 Kf5 24.c4 Rc6 25.Rd1 Rh6 26.g4+ fxg3 27.
hxg3 Ke6 28.Rd8 Nc6 29.Ra8 Rh2 30.Kf1 Rh1+ 31.Bg1 Rh3 32.Kg2 Rh6 33.a3 Rf6
34.b4 Rf7 35.b5 Nd4 36.f4 Rc7 37.Re8+ Kf7 38.Rxe5 Rxc4 39.Rd5 Ne2 40.Rd7+ 
Kf6 41.Rxa7 Nxg1 42.Kxg1 Rc3 43.Kg2 Rb3 44.a4 Ra3 45.Kh3 h6 46.Kg4 g6 47.
Ra6 h5+ 48.Kh4 Kf5 49.Ra8 Kf6 50.Rf8+ Kg7 51.Rb8 Rxa4 52.Rxb6 Kh6 53.Kh3 
Kg7 54.Rc6 Rb4 55.b6 Rb2 56.Rd6 Kf7 57.Rc6 Kg7 58.f5 gxf5 59.Kh4 Rb5 60.
Kg5 f4+ 61.Kxf4 Rb3 62.Ke5 Rxg3 63.Kd6 h4 64.b7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Chemin, Vitorio"]
[Black "Silva Sanchez, Carlos"]
[Result "0-1"]
[ECO "A05"]
[EventDate "1972.05.20"]
[PlyCount "150"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d6 6.e4 c5 7.Nbd2 Nc6 8.a4 Bg4 
9.h3 Bd7 10.c3 Ne8 11.Nc4 Nc7 12.Qe2 Rb8 13.Ne1 b6 14.f4 a6 15.f5 b5 16.
Ne3 b4 17.Bd2 bxc3 18.bxc3 Na5 19.Ra3 Rb3 20.Ra2 Qb8 21.Ng4 Rb2 22.Ra1 Nb3
23.Rd1 Nxd2 24.Rxd2 Bxc3 25.Rxb2 Qxb2 26.Qf3 Bg7 27.Qf4 gxf5 28.Nh6+ Bxh6 
29.Qxh6 Qf6 30.Qd2 Ne8 31.exf5 Bxa4 32.g4 h6 33.Nf3 Bc6 34.Qa5 Bxf3 35.
Rxf3 Qd4+ 36.Kh1 Nf6 37.Qxa6 Rb8 38.Qc4 Rb1+ 39.Rf1 Rxf1+ 40.Bxf1 Qxc4 41.
dxc4 e6 42.Kg2 exf5 43.gxf5 Kf8 44.Kf3 Ke7 45.Kf4 Nh5+ 46.Kg4 Ng7 47.Kf4 
Kf6 48.Bd3 Ne8 49.Be4 Nc7 50.Bb7 d5 51.cxd5 Nb5 52.Ba6 Nd6 53.Bd3 c4 54.
Be2 c3 55.Ke3 Ke5 56.Kd3 Kxd5 57.Kxc3 f6 58.Kd3 Nxf5 59.Bg4 Ke5 60.Bf3 Kf4
61.Bb7 Nh4 62.Bc8 f5 63.Kd4 Nf3+ 64.Kd5 Ng5 65.Kd6 Nf3 66.Ke6 Kg5 67.Bb7 
Nh4 68.Ke5 Ng6+ 69.Ke6 f4 70.Bc6 Nh4 71.Ke5 f3 72.Ke4 Nf5 73.h4+ Kg4 74.
Kd3 f2 75.Bg2 Ng3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Debarnot, Roberto Luis"]
[Black "Szmetan, Jorge"]
[Result "1/2-1/2"]
[ECO "E67"]
[EventDate "1972.05.20"]
[PlyCount "98"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.Nf3 Nbd7 7.O-O e5 8.e3 c6 
9.b4 Re8 10.a4 Nb6 11.Qb3 Be6 12.Nd2 exd4 13.exd4 d5 14.c5 Nc4 15.b5 Qd7 
16.a5 Nxd2 17.Bxd2 Ne4 18.Be3 Nxc3 19.Qxc3 cxb5 20.a6 Rec8 21.Qa5 bxa6 22.
Qxa6 Bf5 23.Rfc1 Bd3 24.c6 Qe6 25.Ra5 Rab8 26.Qxa7 Bc4 27.Rxc4 bxc4 28.
Bxd5 Qf6 29.Kg2 c3 30.Rc5 Qf5 31.h3 Rb1 32.g4 Qd3 33.Qxf7+ Kh8 34.Bc4 Qe4+
35.Kg3 Rg1+ 36.Kh4 Rf8 37.Re5 Rxg4+ 38.hxg4 Qh1+ 39.Kg3 Bxe5+ 40.dxe5 Rxf7
41.Bxf7 Qxc6 42.e6 Kg7 43.Bd4+ Kf8 44.Be3 c2 45.Bh6+ Ke7 46.Bg5+ Kf8 47.
Bh6+ Ke7 48.Bg5+ Kd6 49.Bf4+ Ke7 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Gamarra Caceres, Carlos"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[ECO "C92"]
[EventDate "1972.05.20"]
[PlyCount "92"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.Re1 d6 8.c3 O-O 
9.h3 Nd7 10.d4 Nb6 11.Nbd2 exd4 12.cxd4 d5 13.exd5 Nxd5 14.Ne4 Bf5 15.Ng3 
Bg6 16.a4 Rb8 17.axb5 axb5 18.h4 h6 19.Ne5 Nxe5 20.dxe5 Nb4 21.Qg4 Kh8 22.
Rd1 Qc8 23.e6 c5 24.Rd7 Bf6 25.Raa7 c4 26.Bd1 Nd3 27.Bxh6 Ne5 28.Qf4 Nxd7 
29.Rxd7 fxe6 30.Qd2 Qxd7 31.Qxd7 Rbd8 32.Qxe6 Rxd1+ 33.Kh2 gxh6 34.Qg4 Bc2
35.Nh5 Rd4 36.f4 Bd1 37.Qg6 Bxh5 38.Qxh6+ Kg8 39.Qxh5 Rxf4 40.g3 Rf2+ 41.
Kh3 Rxb2 42.g4 Rb3+ 43.Kg2 Rd8 44.Qg6+ Bg7 45.Qg5 Rd2+ 46.Qxd2 Rb2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Mecking, Henrique"]
[Black "Paiva, Jose de Pinto"]
[Result "1-0"]
[WhiteElo "2540"]
[ECO "B09"]
[EventDate "1972.05.20"]
[PlyCount "75"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 c5 6.dxc5 Qa5 7.Bd3 Qxc5 8.Qe2 
Nc6 9.Be3 Qa5 10.O-O O-O 11.h3 Bd7 12.a3 Qh5 13.Qf2 h6 14.Rae1 Qa5 15.Bd2 
Qc5 16.Be3 Qa5 17.e5 Ne8 18.Bd2 Qc5 19.Qxc5 dxc5 20.Be3 b6 21.Rd1 Nc7 22.
Bxg6 fxg6 23.Rxd7 Ne6 24.Nd5 Rf7 25.Nc7 Rd8 26.Rxd8+ Ncxd8 27.Rd1 Nxc7 28.
Rxd8+ Bf8 29.f5 Kh7 30.fxg6+ Kxg6 31.Rd7 Ne6 32.Rxa7 Kf5 33.Rb7 Bg7 34.
Rxb6 Nd4 35.Nxd4+ Ke4 36.Nf3 Kxe3 37.Rc6 e6 38.Rxc5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Quinones, Oscar Carillo"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2570"]
[ECO "B93"]
[EventDate "1972.05.20"]
[PlyCount "59"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.a4 g6 8.Bd3 Bg7 
9.Nf3 Nc6 10.O-O O-O 11.Kh1 Nb4 12.Qe1 Qc5 13.Be3 Qh5 14.Ne2 Ng4 15.Ng3 
Qa5 16.Bg1 Nc6 17.c3 Bd7 18.Nd2 Qc7 19.Nc4 Be6 20.Nb6 Rae8 21.Qe2 Nf6 22.
a5 Bg4 23.Qc2 Bc8 24.b4 Nb8 25.Rac1 Nbd7 26.Nd5 Qb8 27.c4 e6 28.Nxf6+ Bxf6
29.Ne2 Be7 30.Be3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Rodriguez Vargas, Orestes"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2420"]
[BlackElo "2250"]
[ECO "B35"]
[EventDate "1972.05.20"]
[PlyCount "91"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O 
O-O 9.Nd5 Qd8 10.Nxf6+ Bxf6 11.f4 d6 12.e5 dxe5 13.Nxc6 Qxd1 14.Raxd1 bxc6
15.fxe5 Bxe5 16.Bh6 Bg4 17.Rde1 Bd4+ 18.Kh1 Bg7 19.Bxg7 Kxg7 20.Rxe7 Bf5 
21.h3 Bxc2 22.Bxf7 Kh8 23.Rc1 Be4 24.Rc4 Rxf7 25.Rxf7 Bd5 26.Rcf4 Bxf7 27.
Rxf7 a5 28.b3 c5 29.Rc7 a4 30.Rxc5 axb3 31.axb3 Kg7 32.Rc7+ Kf6 33.b4 Rb8 
34.Rc4 Ke5 35.Kh2 Kd5 36.Rg4 Kc6 37.Kg3 Kb5 38.Kh4 Re8 39.Kg5 Re5+ 40.Kh6 
Re7 41.Rd4 Rf7 42.g4 Rc7 43.g5 Re7 44.Rd8 Kxb4 45.Rh8 Re3 46.Rxh7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Rubinetti, Jorge Alberto"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2340"]
[ECO "B30"]
[EventDate "1972.05.20"]
[PlyCount "115"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d6 5.Bg2 Nf6 6.O-O a6 7.Re1 Be7 8.c3 e5 9.
Na3 O-O 10.Nc2 Re8 11.d4 cxd4 12.cxd4 Bf8 13.d5 Nb8 14.a4 a5 15.Nd2 Na6 
16.Nc4 Nd7 17.Bd2 b6 18.b4 axb4 19.Nxb4 Nxb4 20.Bxb4 Nc5 21.Bf1 Ba6 22.Nb2
Qd7 23.Bxc5 bxc5 24.Bxa6 Rxa6 25.Re3 Rb8 26.Rb3 Rab6 27.Rxb6 Rxb6 28.Qe2 
Qb7 29.Ra2 Rb4 30.a5 Qa7 31.a6 Rb6 32.Qc4 Rb4 33.Qc2 Rb6 34.Qd3 g6 35.Qa3 
Rb4 36.Qd3 Rb6 37.Kg2 f5 38.f3 fxe4 39.fxe4 Bh6 40.Nd1 Rb4 41.Qe2 Rb6 42.
Nc3 Rb8 43.Nb5 Qd7 44.a7 Ra8 45.Ra6 Bf8 46.Rb6 Rxa7 47.Nxa7 Qxa7 48.Qa6 
Qd7 49.Rb8 Qg4 50.Qd3 Qd7 51.Qf3 Qe7 52.Qg4 Qa7 53.Qe6+ Kg7 54.Qe8 Qa2+ 
55.Kh3 Qf2 56.Rb7+ Kh6 57.Rf7 Qe2 58.Qxf8+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "2"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2340"]
[BlackElo "2465"]
[ECO "B46"]
[EventDate "1972.05.20"]
[PlyCount "95"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Be3 b5 8.Bg2 
Bb7 9.O-O Ng6 10.Nxc6 Bxc6 11.Bd4 f6 12.Re1 e5 13.Be3 Bb4 14.Qd3 Ba5 15.
Red1 Ne7 16.Bh3 b4 17.Ne2 d5 18.exd5 Qxd5 19.Qxd5 Nxd5 20.Bc5 Kf7 21.a3 
bxa3 22.c4 Ne7 23.Rxa3 Rhd8 24.Rxd8 Bxd8 25.b4 Bc7 26.Nc3 e4 27.Bxe7 Kxe7 
28.Bf5 Be5 29.Bxe4 Bxe4 30.Nxe4 Rc8 31.c5 Rb8 32.Rxa6 Rxb4 33.Nd6 Bxd6 34.
cxd6+ Ke6 35.d7+ Ke7 36.Ra8 Kxd7 37.Ra7+ Ke6 38.Rxg7 h5 39.Rh7 Rb5 40.Kg2 
Rg5 41.Kh3 Ra5 42.f4 Ra2 43.Rxh5 f5 44.Rh8 Kf6 45.Rh6+ Kg7 46.Rb6 Rc2 47.
Kh4 Rxh2+ 48.Kg5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Camara, Helder"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2540"]
[ECO "A12"]
[EventDate "1972.05.20"]
[PlyCount "103"]

1.Nf3 Nf6 2.g3 d5 3.b3 Bf5 4.Bg2 e6 5.O-O h6 6.Bb2 Be7 7.d3 O-O 8.Nbd2 Bh7
9.c4 c6 10.Qc2 Nbd7 11.Rfd1 Re8 12.Rac1 Rc8 13.Qb1 Qa5 14.Qa1 Ba3 15.Bxa3 
Qxa3 16.d4 Ne4 17.e3 Qd6 18.Qb2 a5 19.a3 b5 20.c5 Qe7 21.Nxe4 Bxe4 22.Ne5 
Bxg2 23.Kxg2 f6 24.Nxd7 Qxd7 25.Qe2 Qf7 26.Qg4 Rc7 27.Rd2 e5 28.h4 h5 29.
Qf3 e4 30.Qf5 g6 31.Qh3 f5 32.Kf1 Qf6 33.Ke2 Ra7 34.Kd1 a4 35.b4 g5 36.
hxg5 Qxg5 37.Kc2 Rh7 38.Rh1 Re6 39.Qh4 Rg6 40.Rdd1 Kg7 41.Kd2 Qf6 42.Qxf6+
Kxf6 43.Rh4 Rg4 44.Rdh1 Rxh4 45.Rxh4 Kg5 46.Ke2 Rg7 47.Rh1 Kh6 48.Rh4 Rg4 
49.Rxg4 fxg4 50.Kf1 h4 51.Kg2 hxg3 52.fxg3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Carvajal Aliaga, Juan"]
[Black "Gamarra Caceres, Carlos"]
[Result "1/2-1/2"]
[ECO "E62"]
[EventDate "1972.05.20"]
[PlyCount "91"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.e4 Nc6 7.Nf3 e5 8.d5 Nd4 9.
Nxd4 exd4 10.Ne2 Re8 11.Qd3 Nd7 12.Nxd4 Nc5 13.Qd1 Nxe4 14.O-O a5 15.Be3 
Nc5 16.Qc2 Bd7 17.Rad1 Bg4 18.Rd2 Qd7 19.Nb3 Nxb3 20.Qxb3 b6 21.Bd4 Bxd4 
22.Rxd4 Re2 23.Rxg4 a4 24.Qf3 Rxb2 25.Bh3 f5 26.Rg5 Kh8 27.Bxf5 Qg7 28.Bb1
Rf8 29.Qe3 Rb4 30.Rg4 b5 31.Qa3 Rb2 32.cxb5 Qe5 33.Re4 Rfxf2 34.Rxf2 Rxb1+
35.Rf1 Qxe4 36.Qc3+ Kg8 37.Qf6 Rxf1+ 38.Kxf1 Qb1+ 39.Kg2 Qxb5 40.Kh3 Qc4 
41.Qe6+ Kg7 42.Qe7+ Kg8 43.Qe6+ Kf8 44.Qf6+ Ke8 45.Qe6+ Kd8 46.Qg8+ 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Godoy Bugueno, David"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[ECO "B88"]
[EventDate "1972.05.20"]
[PlyCount "95"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
a6 9.O-O Qc7 10.f4 Na5 11.Qf3 b5 12.e5 Bb7 13.Qg3 dxe5 14.fxe5 Nh5 15.Qf2 
O-O 16.g4 Nxb3 17.axb3 Qxe5 18.gxh5 Qxh5 19.Nce2 Rad8 20.Rad1 Bc5 21.Ng3 
Qg4 22.c3 e5 23.Qf5 Bc8 24.Qxe5 Bd6 25.Qg5 f6 26.Qxg4 Bxg4 27.Rd2 Rfe8 28.
Re1 h5 29.Ndf5 Bc5 30.Rxd8 Bxe3+ 31.Rxe3 Rxd8 32.Nd4 Kf7 33.b4 g6 34.Ne4 
f5 35.Nc5 f4 36.Re4 g5 37.h4 Kf6 38.hxg5+ Kxg5 39.Kf2 h4 40.Rxf4 Kxf4 41.
Nce6+ Bxe6 42.Nxe6+ Ke4 43.Nxd8 Kd3 44.Nb7 Kc2 45.Nc5 Kxb2 46.Nxa6 Kxc3 
47.Kg2 Kd4 48.Kh3 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Juarez, Carlos Eleodoro"]
[Black "Quinones, Oscar Carillo"]
[Result "1-0"]
[WhiteElo "2340"]
[BlackElo "2290"]
[ECO "C42"]
[EventDate "1972.05.20"]
[PlyCount "87"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2 Qe7 6.d3 Nf6 7.Bg5 Qxe2+ 8.
Bxe2 Be7 9.Nc3 c6 10.O-O-O Na6 11.d4 Nc7 12.Rhe1 Be6 13.Bd3 O-O-O 14.Ne4 
Ncd5 15.Nxf6 Nxf6 16.c4 d5 17.c5 h6 18.Bh4 Rhe8 19.Ne5 Ne4 20.Bxe7 Rxe7 
21.Re2 Rde8 22.f3 Nf6 23.Rde1 Kd8 24.b4 Nd7 25.f4 Nxe5 26.fxe5 h5 27.Rf2 
Rh8 28.Ref1 Rh6 29.a4 h4 30.Kd2 Ke8 31.b5 Bd7 32.Kc3 Rh5 33.Bg6 Rg5 34.
Bxf7+ Kd8 35.bxc6 bxc6 36.Rf4 Rxg2 37.Rxh4 Ra2 38.Kb3 Rd2 39.Bg6 Be6 40.
Kc3 Ra2 41.Rh8+ Kc7 42.Bc2 Bc8 43.Rg1 Ba6 44.Rh7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Paiva, Jose de Pinto"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2340"]
[ECO "B33"]
[EventDate "1972.05.20"]
[PlyCount "86"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nxc6 bxc6 7.Bc4 Bb4 8.
O-O h6 9.f4 Qe7 10.fxe5 Qxe5 11.Kh1 Bxc3 12.bxc3 O-O 13.Bf4 Qxc3 14.e5 Ng4
15.Qxg4 Qxc4 16.Rf3 Qe6 17.Qh4 Ba6 18.Rg3 Kh7 19.Rd1 Rae8 20.h3 Qf5 21.
Rxd7 Re6 22.Rxa7 Be2 23.Re3 Bd1 24.c3 g5 25.Bxg5 Qxg5 26.Qf2 Bh5 27.h4 Qg4
28.Kg1 Bg6 29.a4 h5 30.Kh2 Kg7 31.a5 c5 32.a6 Qc4 33.Kg1 Rxa6 34.Re7 Re6 
35.Rc7 Rfe8 36.Rg3 Rxe5 37.Qf3 Re1+ 38.Kh2 Qxh4+ 39.Rh3 Qf6 40.Qxf6+ Kxf6 
41.Rxc5 R8e3 42.Rh4 Re4 43.Rcxh5 Bxh5 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Panno, Oscar"]
[Black "Rodriguez Vargas, Orestes"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2420"]
[ECO "A73"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Bg4 10.Bg5 Re8 11.Nd2 Bxe2 12.Qxe2 h6 13.Bh4 a6 14.a4 Nbd7 15.f3 Qc7
16.g4 Rac8 17.a5 Ne5 18.Bg3 c4 19.Bxe5 Rxe5 20.Kh1 Ree8 21.Ra4 Qc5 22.Qd1 
h5 23.gxh5 Nxh5 24.Nxc4 Qc7 25.Nb6 Rcd8 26.Qd2 Qe7 27.Rc4 Kh7 28.Ne2 Rh8 
29.Ng3 Nxg3+ 30.hxg3 Qe5 31.Kg2 Kg8 32.Rg1 Bf6 33.Qc2 Kg7 34.Qc1 Rh7 35.f4
Qh5 36.Qd1 Qh2+ 37.Kf3 Qxb2 38.Rg2 Qa3+ 39.Kg4 Rdh8 40.Qb1 Rh4+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Quinteros, Miguel Angel"]
[Black "Debarnot, Roberto Luis"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "77"]

1.Nf3 c5 2.e4 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Qe2 d6 8.f4 
Nbd7 9.c4 h5 10.Kh1 b6 11.Nc3 Bb7 12.f5 Nc5 13.Bc2 exf5 14.Nd5 Bxd5 15.
exd5+ Qe7 16.Qxe7+ Kxe7 17.Bg5 Kd8 18.Bxf5 Kc7 19.b4 Nb7 20.Rae1 Ne8 21.
Bg6 Nf6 22.Bxf7 Nd8 23.Bg6 b5 24.cxb5 axb5 25.Nxb5+ Kb6 26.Nc3 Ra3 27.Ne4 
Rg8 28.Nxf6 gxf6 29.Bxf6 Bg7 30.Bh7 Rh8 31.Bxg7 Rxh7 32.Re7 Kb5 33.Rf8 
Rxa2 34.h4 Ra8 35.Kh2 Kc4 36.Bf6 Nc6 37.dxc6 Rxf8 38.Rxh7 Rxf6 39.Rb7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Silva Nazzari, Roberto"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2250"]
[ECO "C44"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 d6 5.cxd4 Nf6 6.Nc3 Be7 7.Bd3 Bg4 8.Be3 
a6 9.h3 Bh5 10.Rc1 Rc8 11.Qb3 Rb8 12.Be2 O-O 13.O-O Na5 14.Qc2 Bg6 15.Qa4 
c5 16.dxc5 dxc5 17.Rfd1 Qc7 18.b4 Nc6 19.bxc5 Rbe8 20.Nd5 Qc8 21.Nb6 Qb8 
22.e5 Nxe5 23.Bf4 Nxf3+ 24.Bxf3 Qa7 25.Nd7 Nxd7 26.Rxd7 Bxc5 27.Rxb7 Bxf2+
28.Kh1 Qd4 29.Qxd4 Bxd4 30.Bd6 Rc8 31.Rd1 Bc5 32.Bxf8 Bxf8 33.Ra7 h6 34.
Rxa6 Kh7 35.Ra8 Rxa8 36.Bxa8 Ba3 37.Re1 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Silva Sanchez, Carlos"]
[Black "Asfora, Eduardo"]
[Result "1/2-1/2"]
[ECO "E01"]
[EventDate "1972.05.20"]
[PlyCount "39"]

1.Nf3 Nf6 2.d4 d5 3.g3 c6 4.Bg2 Nbd7 5.O-O e6 6.Nbd2 Bd6 7.c4 O-O 8.Qc2 
Re8 9.Rd1 Qe7 10.e4 Nxe4 11.Nxe4 dxe4 12.Qxe4 e5 13.dxe5 Nxe5 14.Ng5 f5 
15.Qe2 h6 16.Nf3 Nxf3+ 17.Qxf3 Be6 18.Bf4 Rad8 19.Bxd6 Rxd6 20.Rxd6 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Szmetan, Jorge"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[BlackElo "2425"]
[ECO "A43"]
[EventDate "1972.05.20"]
[PlyCount "68"]

1.d4 Nf6 2.Nf3 c5 3.g3 cxd4 4.Nxd4 d5 5.Bg2 e5 6.Nb3 Nc6 7.O-O Be7 8.Nc3 
Be6 9.Bg5 d4 10.Bxf6 gxf6 11.Ne4 Qb6 12.c3 f5 13.Ned2 dxc3 14.bxc3 h5 15.
e3 h4 16.Qe2 hxg3 17.hxg3 O-O-O 18.Rab1 Qc7 19.Rfc1 Bd5 20.e4 fxe4 21.c4 
Be6 22.Nxe4 Bh3 23.Bh1 f5 24.Nc3 e4 25.Nb5 Qe5 26.Qb2 Qxb2 27.Rxb2 a6 28.
Nc3 Ba3 29.Rbb1 Bxc1 30.Rxc1 Ne5 31.Nd5 Nf3+ 32.Bxf3 exf3 33.Nf4 Rh7 34.
Nc5 Rdh8 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "3"]
[White "Vasquez De la Paz, Julio"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[ECO "B61"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O Nxd4 9.Qxd4 Qa5 10.Bxf6 gxf6 11.Bc4 Qc5 12.Qxc5 Rxc5 13.Bb3 h5 14.f4
Bh6 15.g3 Bg4 16.Rdf1 h4 17.Nd5 Bh3 18.Rf2 e6 19.Ne3 Rg8 20.Rf3 Rh5 21.Rg1
Bg4 22.Rf2 Kf8 23.Bc4 hxg3 24.hxg3 f5 25.Bd3 Bg7 26.c3 fxe4 27.Nxg4 exd3 
28.Ne3 f5 29.Kd2 Rh3 30.Kxd3 Bf6 31.Rf3 Ke7 32.Re1 Kf7 33.Nf1 Rh1 34.Re2 
Re8 35.Ne3 Rh3 36.Nc4 Be7 37.Ree3 Bf8 38.Na5 Re7 39.Nc4 Re8 40.Na5 Re7 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Camara, Helder"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "E61"]
[EventDate "1972.05.20"]
[PlyCount "129"]

1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg5 h6 6.Bh4 d6 7.e3 Nbd7 8.Be2 c6 
9.O-O g5 10.Bg3 Nh5 11.Qc2 Nxg3 12.hxg3 Qc7 13.Bd3 Nf6 14.Rad1 Re8 15.Ne4 
Nxe4 16.Bxe4 e5 17.dxe5 dxe5 18.Bh7+ Kf8 19.Bf5 Bxf5 20.Qxf5 Rad8 21.g4 e4
22.Nd4 Bxd4 23.exd4 Kg7 24.f4 Qd7 25.fxg5 Qxf5 26.gxh6+ Kxh6 27.Rxf5 e3 
28.Rf4 Kg5 29.g3 e2 30.Re1 Re3 31.Kf2 Rde8 32.d5 cxd5 33.cxd5 R3e5 34.d6 
R5e6 35.Rxf7 Rxd6 36.Rxe2 Rxe2+ 37.Kxe2 Rb6 38.b3 Kxg4 39.Rg7+ Kh5 40.Kd3 
Kh6 41.Rg8 Rc6 42.Kd4 Ra6 43.a4 Rd6+ 44.Kc4 Rc6+ 45.Kb4 Rb6+ 46.Ka3 Kh5 
47.Ra8 a6 48.Rg8 Kh6 49.Rg4 Re6 50.Kb4 Rb6+ 51.Kc3 Rc6+ 52.Rc4 Rg6 53.g4 
Kg5 54.Re4 Rc6+ 55.Kb4 Rb6+ 56.Kc4 Rc6+ 57.Kd5 Rb6 58.b4 Kf6 59.Rc4 Ke7 
60.Ke5 Kf7 61.Kf5 Rf6+ 62.Kg5 Rb6 63.Kh5 Kf6 64.g5+ Kf5 65.Rg4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Carvajal Aliaga, Juan"]
[Black "Quinones, Oscar Carillo"]
[Result "1-0"]
[BlackElo "2290"]
[ECO "D26"]
[EventDate "1972.05.20"]
[PlyCount "95"]

1.d4 Nf6 2.Nf3 e6 3.e3 c5 4.c4 d5 5.Nc3 Nc6 6.cxd5 Nxd5 7.Bc4 cxd4 8.exd4 
Nf6 9.O-O Be7 10.d5 exd5 11.Nxd5 Nxd5 12.Bxd5 O-O 13.Be3 Bf6 14.Bc5 Re8 
15.Qb3 Be6 16.Bxe6 Rxe6 17.Rfd1 Qc7 18.Rac1 Rae8 19.Be3 Re4 20.h3 Qe7 21.
a3 h6 22.Nd2 Re6 23.Bc5 Nd4 24.Qa4 Ne2+ 25.Kh1 Qc7 26.Rc4 a6 27.Be3 Qb8 
28.Qc2 Ng3+ 29.Kg1 Bg5 30.fxg3 Bxe3+ 31.Kh2 b5 32.Rc3 Bd4 33.Rd3 Be5 34.
Ne4 Rg6 35.b4 h5 36.Rf3 h4 37.Qb3 Ree6 38.Rdf1 hxg3+ 39.Kh1 Qb6 40.Rxf7 
Kh7 41.Qd3 Re8 42.R1f6 Bxf6 43.Nxf6+ Kh6 44.Nxe8 Qe6 45.Rf4 Qxe8 46.Rh4+ 
Kg5 47.Qxg3+ Kf6 48.Qf3+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Godoy Bugueno, David"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[BlackElo "2420"]
[ECO "D40"]
[EventDate "1972.05.20"]
[PlyCount "41"]

1.e4 d5 2.exd5 Nf6 3.c4 c6 4.d4 cxd5 5.Nc3 e6 6.Nf3 Be7 7.Bd3 dxc4 8.Bxc4 
Nc6 9.O-O O-O 10.Re1 a6 11.a3 b5 12.Ba2 b4 13.axb4 Nxb4 14.Bb1 Bb7 15.Ne5 
Rc8 16.Bg5 Rc7 17.Re3 g6 18.Rg3 Nc6 19.Rd3 Nxe5 20.dxe5 Nd5 21.Bh6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Juarez, Carlos Eleodoro"]
[Black "Szmetan, Jorge"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B35"]
[EventDate "1972.05.20"]
[PlyCount "99"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Bc4 Bg7 7.Bb3 O-O 8.f3 
Nc6 9.Be3 Bd7 10.Qd2 Qa5 11.O-O Rfc8 12.Rad1 Ne5 13.Bg5 Nc4 14.Bxc4 Rxc4 
15.Nb3 Qb6+ 16.Be3 Qc7 17.Qf2 b5 18.a3 b4 19.axb4 Rxb4 20.Ra1 a5 21.Nd1 a4
22.Nc1 d5 23.e5 Ne8 24.f4 Bb5 25.Re1 Rc4 26.Nc3 Bc6 27.Bd4 Qb7 28.Nd3 Nd6 
29.b3 axb3 30.Rxa8+ Qxa8 31.cxb3 Rxd4 32.Qxd4 Nf5 33.Qf2 d4 34.Nd1 Be4 35.
Nc5 Bd5 36.b4 Qa3 37.Qb2 Qa7 38.Nf2 Bh6 39.Ncd3 e6 40.Qa1 Qe7 41.Ne4 Qh4 
42.g3 Qe7 43.Nf6+ Kg7 44.Nxd5 exd5 45.Qa6 Ne3 46.b5 Qd7 47.e6 Qc7 48.Rc1 
Nc4 49.Qc6 Qa5 50.Qxd5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Mecking, Henrique"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[WhiteElo "2540"]
[ECO "B63"]
[EventDate "1972.05.20"]
[PlyCount "89"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.f4 a6 10.Nb3 b5 11.Bxf6 gxf6 12.Bd3 b4 13.Ne2 a5 14.Kb1 a4 15.Nbc1 
Qb6 16.Rhf1 b3 17.cxb3 a3 18.Rf3 axb2 19.Kxb2 Nb4 20.f5 Kh8 21.Nc3 Rg8 22.
Kb1 Bb7 23.Rg3 Rxg3 24.hxg3 Rg8 25.Bc4 d5 26.exd5 exd5 27.Bxd5 Rd8 28.Qe2 
Qc5 29.Bxb7 Qxc3 30.Rxd8+ Bxd8 31.a3 Bc7 32.Qc4 Qxg3 33.axb4 Kg7 34.Bf3 
Qe5 35.Qe4 Bd6 36.Qxe5 fxe5 37.b5 Kf6 38.g4 Kg5 39.Nd3 Bb8 40.b6 e4 41.
Bxe4 Kxg4 42.Nc5 Kf4 43.Nd7 Bd6 44.Bd5 Kxf5 45.Bxf7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Paiva, Jose de Pinto"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "61"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Be7 8.O-O 
O-O 9.f4 b5 10.e5 dxe5 11.fxe5 Nfd7 12.Bf4 Qb6 13.Kh1 Bb7 14.a4 b4 15.a5 
Qc7 16.Na4 Kh8 17.Qh5 Qxa5 18.Rae1 Nc6 19.Nf3 Rae8 20.c3 bxc3 21.Nxc3 Nb4 
22.Bg5 Bxf3 23.Rxf3 Bxg5 24.Qxg5 f6 25.Qh4 Nxe5 26.Rh3 h6 27.Qe4 Nd5 28.
Bc2 g6 29.Rxh6+ Kg7 30.Rxg6+ Kf7 31.Rg7+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Panno, Oscar"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "E80"]
[EventDate "1972.05.20"]
[PlyCount "20"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 a6 6.Be3 c6 7.Bd3 b5 8.e5 Nfd7 9.
exd6 bxc4 10.Bxc4 exd6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Silva Nazzari, Roberto"]
[Black "Debarnot, Roberto Luis"]
[Result "1-0"]
[WhiteElo "2250"]
[ECO "C14"]
[EventDate "1972.05.20"]
[PlyCount "75"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Qd2 O-O 8.f4 
c5 9.Nf3 Nc6 10.g3 Rb8 11.dxc5 Qxc5 12.Bd3 b5 13.Qe2 h6 14.Qf2 b4 15.Qxc5 
Nxc5 16.Ne2 b3 17.Kd2 bxc2 18.b3 d4 19.Nc1 Rd8 20.Ne1 Nb4 21.Nxc2 Nbxd3 
22.Nxd3 Ne4+ 23.Ke2 Ba6 24.Rhc1 f5 25.Ne1 Rdc8 26.Kd1 Nc3+ 27.Kd2 g5 28.b4
gxf4 29.gxf4 Kf7 30.a4 Bc4 31.Nf3 Ne4+ 32.Ke2 Rxb4 33.Nxd4 Nc5 34.Rxc4 
Rxc4 35.Nb5 Rd8 36.Nd6+ Rxd6 37.exd6 Ne4 38.Ne5+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Silva Sanchez, Carlos"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[ECO "D46"]
[EventDate "1972.05.20"]
[PlyCount "49"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.Bd3 dxc4 8.Bxc4 
e5 9.O-O exd4 10.exd4 O-O 11.Bg5 h6 12.Bxh6 Kh8 13.Bg5 Qc7 14.Rae1 Nb6 15.
Bb3 Bf4 16.g3 Bxg5 17.Nxg5 Qd7 18.Nce4 Qf5 19.Nxf6 gxf6 20.Nxf7+ Kg7 21.
Qxf5 Bxf5 22.Nd6 Bh3 23.Re7+ Kh6 24.Rfe1 Rad8 25.Nf7+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Asfora, Eduardo"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B06"]
[EventDate "1972.05.20"]
[PlyCount "47"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nc6 5.Nf3 Bg4 6.Be3 Bxf3 7.gxf3 e5 8.dxe5 
dxe5 9.Qxd8+ Rxd8 10.Nb5 exf4 11.Nxc7+ Kf8 12.Bc5+ Nge7 13.c3 Be5 14.Nd5 
Bd6 15.Bxd6 Rxd6 16.Nxf4 Rf6 17.Nd5 Nxd5 18.exd5 Ne5 19.O-O-O Kg7 20.Bg2 
Nxf3 21.Bxf3 Rxf3 22.Rhe1 Kf6 23.d6 Rd8 24.d7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "4"]
[White "Vasquez De la Paz, Julio"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2425"]
[ECO "A32"]
[EventDate "1972.05.20"]
[PlyCount "90"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Bd2 Nc6 7.Nc2 Be7 8.g3 
d5 9.cxd5 exd5 10.Bg2 d4 11.Nb5 Qb6 12.a4 a6 13.Nba3 Be6 14.O-O O-O 15.a5 
Qd8 16.Ne1 Bd5 17.Nf3 Ne4 18.Rc1 Nxd2 19.Nxd2 Bxg2 20.Kxg2 Bxa3 21.bxa3 
Qxa5 22.Nb3 Qxa3 23.Nc5 Qb4 24.Qc2 Qb5 25.Nxb7 Nb4 26.Qe4 Rfe8 27.Qf3 Qxe2
28.Qxe2 Rxe2 29.Rc4 Nc2 30.Rc1 d3 31.Rc3 g6 32.Na5 d2 33.Rd1 Ne1+ 34.Kf1 
Rae8 35.Nc4 Nf3 36.Nb2 Re1+ 37.Kg2 Rxd1 38.Nxd1 Re1 39.Kxf3 Rxd1 40.Rd3 h5
41.h4 Kg7 42.Rd5 a5 43.Ke2 Rb1 44.Kxd2 Rb2+ 45.Ke1 a4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Alborta Tito, Eduardo"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[ECO "C90"]
[EventDate "1972.05.20"]
[PlyCount "72"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.Re1 d6 8.h3 Na5 
9.c3 Nxb3 10.Qxb3 Bb7 11.d3 O-O 12.Nbd2 Nd7 13.Nf1 Nc5 14.Qd1 f5 15.Ng3 
fxe4 16.dxe4 Kh8 17.b4 Ne6 18.Nf5 Bxe4 19.Rxe4 Rxf5 20.Qd5 Qc8 21.a4 c6 
22.Qd3 Rf8 23.h4 Nc7 24.Bg5 Qe8 25.axb5 axb5 26.Rxa8 Nxa8 27.Bxe7 Qxe7 28.
Ng5 g6 29.Qg3 Nb6 30.f4 Nc4 31.fxe5 Qa7+ 32.Kh2 Nd2 33.Rf4 Nf1+ 34.Rxf1 
Rxf1 35.exd6 Qg1+ 36.Kh3 Qh1+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Asfora, Eduardo"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[BlackElo "2540"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "78"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.O-O Be7
9.f4 O-O 10.f5 b4 11.Na4 e5 12.Ne2 Bb7 13.Bd5 Qc7 14.Ng3 Bxd5 15.exd5 Nbd7
16.c3 a5 17.Be3 Qc4 18.b3 Qxd5 19.c4 Qb7 20.Nh5 d5 21.cxd5 Nxh5 22.Qxh5 
Nf6 23.Qf3 Qxd5 24.Nb6 Qxf3 25.Rxf3 Ra6 26.h3 Rb8 27.Nc4 Nd5 28.Bd2 Bc5+ 
29.Kh2 a4 30.Rd1 axb3 31.axb3 Bd4 32.Rff1 Ra2 33.Rfe1 f6 34.Kh1 Nc3 35.Rc1
Bf2 36.Rf1 Ne2 37.Rxf2 Nxc1 38.Rf3 Rc2 39.Rf1 Nxb3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Silva Sanchez, Carlos"]
[Result "0-1"]
[ECO "B82"]
[EventDate "1972.05.20"]
[PlyCount "68"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 e5
9.Nxc6 bxc6 10.fxe5 dxe5 11.Bc4 O-O 12.h3 Qa5 13.O-O Bc5 14.Kh1 Bxe3 15.
Qxe3 Qb4 16.Bb3 Be6 17.Rad1 Rfe8 18.Rfe1 h6 19.Na4 Rad8 20.Qc5 Qxe4 21.
Rxe4 Rxd1+ 22.Kh2 Nxe4 23.Qxc6 Nf6 24.Nc3 Rdd8 25.Qc5 Bxb3 26.axb3 Rd2 27.
Nb1 Rd7 28.Nc3 e4 29.Qe3 Nd5 30.Nxd5 Rxd5 31.Kg1 f5 32.g3 Rf8 33.Qxa7 Rc8 
34.Qa6 Rxc2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Chemin, Vitorio"]
[Black "Paiva, Jose de Pinto"]
[Result "0-1"]
[ECO "A08"]
[EventDate "1972.05.20"]
[PlyCount "54"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d5 6.Nbd2 c5 7.c4 b6 8.Rb1 Nc6 
9.a3 a5 10.Ne1 Bb7 11.cxd5 Nxd5 12.Nc4 b5 13.Bxd5 Qxd5 14.Nb6 Qa2 15.Be3 
Rad8 16.Bxc5 Nd4 17.e4 f5 18.f3 fxe4 19.fxe4 Rxf1+ 20.Kxf1 Rf8+ 21.Kg1 Qe6
22.Qd2 Nb3 23.Qe3 Qh3 24.Ng2 Bh6 25.Nf4 Nxc5 26.Qxc5 Bxf4 27.gxf4 Rxf4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Debarnot, Roberto Luis"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[BlackElo "2570"]
[ECO "A43"]
[EventDate "1972.05.20"]
[PlyCount "31"]

1.d4 c5 2.d5 d6 3.e4 Nf6 4.Nc3 g6 5.Bb5+ Nbd7 6.a4 Bg7 7.f4 O-O 8.Nf3 a6 
9.Be2 Qa5 10.Nd2 Ne8 11.O-O f5 12.Nc4 Qc7 13.Bf3 Nb6 14.Ne3 Bd7 15.g4 fxg4
16.Bxg4 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Gamarra Caceres, Carlos"]
[Black "Camara, Helder"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "B47"]
[EventDate "1972.05.20"]
[PlyCount "48"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nc6 7.Bg2 Nf6 8.O-O 
Be7 9.Nce2 O-O 10.b3 b5 11.Bb2 Bb7 12.Nxc6 dxc6 13.Nc3 c5 14.Qe2 Rfc8 15.
Nb1 c4 16.bxc4 Qxc4 17.Qxc4 Rxc4 18.e5 Nd5 19.Nc3 Nxc3 20.Bxb7 Rb8 21.Bxc3
Rxb7 22.Ba5 h5 23.Rfc1 Ba3 24.Rd1 Rxc2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Quinones, Oscar Carillo"]
[Black "Vasquez De la Paz, Julio"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2270"]
[ECO "E56"]
[EventDate "1972.05.20"]
[PlyCount "55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O Nc6 8.a3 dxc4 
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5 12.Ba2 Bb7 13.dxc5 Bxc3 14.Qc2 Qe7 15.Qxc3 
Ne4 16.Qc2 Nxc5 17.Bd2 Rac8 18.Rac1 Nd7 19.Bb1 f5 20.Bc3 Nf6 21.Ba2 Ne4 
22.Be1 Ne5 23.Nxe5 Rxc2 24.Rxc2 Rc8 25.Rxc8+ Bxc8 26.Ba5 h6 27.Rd8+ Kh7 
28.Rh8+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Quinteros, Miguel Angel"]
[Black "Juarez, Carlos Eleodoro"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2340"]
[ECO "D73"]
[EventDate "1972.05.20"]
[PlyCount "126"]

1.g3 c5 2.Bg2 g6 3.c3 Bg7 4.d4 cxd4 5.cxd4 d5 6.Nc3 Nf6 7.Nf3 Ne4 8.O-O 
Nc6 9.e3 Nxc3 10.bxc3 O-O 11.Nd2 Be6 12.Ba3 Qd7 13.Qb3 Rac8 14.Rfc1 Rc7 
15.Qb5 Rd8 16.Bf1 Bh3 17.Bxh3 Qxh3 18.Rab1 h5 19.c4 dxc4 20.Rxc4 Rcd7 21.
Nf3 e5 22.Bc5 h4 23.Rcc1 hxg3 24.hxg3 exd4 25.Bxd4 Bxd4 26.Nxd4 Nxd4 27.
exd4 b6 28.Rd1 Rd5 29.Qe2 Kg7 30.Qe4 Qd7 31.Rb4 Qd6 32.a3 a5 33.Rb3 b5 34.
Rbd3 b4 35.axb4 axb4 36.Kg2 Rd7 37.Qe3 Re7 38.Qf3 Qd7 39.Re3 Rxe3 40.Qxe3 
Rh5 41.Qf3 Qh3+ 42.Kg1 b3 43.Rd2 Qe6 44.Rd1 Qd5 45.Qxd5 Rxd5 46.Kf1 b2 47.
Rb1 Rb5 48.Ke2 Kf6 49.Kd3 Ke6 50.Kc4 Rb7 51.Re1+ Kd6 52.Rb1 Rb8 53.Kc3 Kd5
54.Rxb2 Rxb2 55.Kxb2 Kxd4 56.Kc2 Ke4 57.Kd2 Kf3 58.Ke1 Kg2 59.Ke2 f5 60.
Ke3 g5 61.Ke2 f4 62.g4 Kg1 63.Kf3 Kf1 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Rodriguez Vargas, Orestes"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2420"]
[ECO "B25"]
[EventDate "1972.05.20"]
[PlyCount "59"]

1.e4 c5 2.Nc3 Nc6 3.g3 d6 4.Bg2 g6 5.d3 Bg7 6.f4 Nf6 7.Nf3 O-O 8.O-O Rb8 
9.h3 b5 10.g4 Nd4 11.Be3 b4 12.Ne2 Nxe2+ 13.Qxe2 h5 14.f5 hxg4 15.Nh4 gxf5
16.Nxf5 Bxf5 17.Rxf5 gxh3 18.Bxh3 e6 19.Rg5 Nh7 20.Qg2 Qf6 21.e5 dxe5 22.
Rg3 Kh8 23.Rf1 Qh4 24.Rxg7 f5 25.Kh1 f4 26.Bf2 Qh5 27.Rg1 Nf6 28.Kh2 e4 
29.dxe4 Qe5 30.Qg6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Rubinetti, Jorge Alberto"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2250"]
[ECO "D94"]
[EventDate "1972.05.20"]
[PlyCount "69"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Be2 c5 7.dxc5 Qa5 8.cxd5 
Nxd5 9.Qxd5 Bxc3+ 10.Bd2 Bxd2+ 11.Qxd2 Qxc5 12.O-O Nc6 13.Rac1 Qb6 14.Rfd1
Be6 15.b3 Rad8 16.Qc3 Rxd1+ 17.Rxd1 Rd8 18.Rxd8+ Qxd8 19.Ng5 Qd5 20.Nxe6 
Qxe6 21.h3 Qe5 22.Qxe5 Nxe5 23.Kf1 Kf8 24.Ke1 e6 25.Kd2 Ke7 26.Kc3 Kd6 27.
f4 Nc6 28.b4 f6 29.Bf3 b5 30.a3 e5 31.Be2 a6 32.Bf3 h6 33.Kd3 exf4 34.exf4
f5 35.Bxc6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "5"]
[White "Szmetan, Jorge"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[BlackElo "2340"]
[ECO "B45"]
[EventDate "1972.05.20"]
[PlyCount "67"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3 d5 7.exd5 Nxd5 8.Nxc6
bxc6 9.Ne4 Ba6 10.Bxa6 Qa5+ 11.Bd2 Qxa6 12.Qe2 Qxe2+ 13.Kxe2 Be7 14.c4 Nf6
15.Nc3 O-O-O 16.Be3 Kb7 17.f3 Nd7 18.Rad1 f5 19.b3 Nb6 20.Bd4 Bf6 21.Bxf6 
gxf6 22.Ke3 Kc7 23.Rxd8 Rxd8 24.Rd1 Rxd1 25.Nxd1 Nd7 26.Nf2 Kd6 27.Nd3 a5 
28.a3 c5 29.Nb2 Ne5 30.Na4 Nc6 31.Nc3 e5 32.Nd5 Ke6 33.Nc7+ Kd7 34.Nd5 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Alborta Tito, Eduardo"]
[Black "Panno, Oscar"]
[Result "0-1"]
[BlackElo "2570"]
[ECO "B84"]
[EventDate "1972.05.20"]
[PlyCount "92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.Be3 Qc7 8.O-O b5
9.a3 Bb7 10.f3 Nbd7 11.Qd2 Be7 12.Bd3 O-O 13.Qf2 Rac8 14.Rad1 Ne5 15.Kh1 
d5 16.exd5 Bxd5 17.Nxd5 Nxd5 18.c3 Bc5 19.Bb1 Nxe3 20.Qxe3 Nc4 21.Qf2 g6 
22.f4 Rfd8 23.Rd3 Bxd4 24.cxd4 Rd5 25.g4 Rcd8 26.Rfd1 Qc6 27.Kg1 Qb6 28.
Ba2 R5d7 29.h3 Qb7 30.Bb1 Nb6 31.f5 exf5 32.gxf5 Nc4 33.Rg3 Qb6 34.Rdd3 
Qf6 35.Rgf3 g5 36.Rg3 Kh8 37.Rg4 h5 38.Re4 Nd6 39.Re5 Nc4 40.Re4 Rg8 41.
Qe2 h4 42.Qf2 Rd5 43.Rf3 Rgd8 44.Qc2 Rxd4 45.Re2 Rd1+ 46.Rf1 Qd4+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Silva Nazzari, Roberto"]
[Result "1/2-1/2"]
[BlackElo "2250"]
[ECO "B02"]
[EventDate "1972.05.20"]
[PlyCount "81"]

1.e4 Nf6 2.e5 Nd5 3.Nc3 e6 4.d4 d6 5.Ne4 Nc6 6.exd6 cxd6 7.Nf3 Be7 8.Bd3 
Bd7 9.O-O Nf6 10.c3 Nxe4 11.Bxe4 O-O 12.Re1 Rc8 13.Bc2 Re8 14.d5 exd5 15.
Qxd5 Qa5 16.Bb3 Qxd5 17.Bxd5 Bf8 18.Bf4 Rxe1+ 19.Rxe1 Re8 20.Rd1 Be6 21.
Kf1 h6 22.h3 a6 23.a4 Bxd5 24.Rxd5 Re4 25.Bxd6 Bxd6 26.Rxd6 Rxa4 27.Rd7 b5
28.Rd6 Na5 29.Ne5 f6 30.Nd3 Nc4 31.Rd8+ Kf7 32.Rd7+ Kg8 33.Ra7 Ra1+ 34.Ke2
Nxb2 35.Nc5 Na4 36.Ne6 Nxc3+ 37.Kd3 Ra3 38.Nxg7 Nd1+ 39.Ke4 Nxf2+ 40.Kf4 
b4 41.Nh5 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Chemin, Vitorio"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[ECO "B92"]
[EventDate "1972.05.20"]
[PlyCount "59"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.O-O 
Be7 9.Be3 O-O 10.f4 exf4 11.Bxf4 Nc6 12.Bf3 Ne5 13.Bxe5 dxe5 14.Kh1 Bc4 
15.Qxd8 Rfxd8 16.Rfd1 Bb4 17.Na4 b5 18.Nac5 Rdc8 19.Nd3 Bxd3 20.cxd3 Rc2 
21.d4 Re8 22.dxe5 Rxe5 23.Nd4 Rxb2 24.Nc6 Re6 25.e5 Ne8 26.Bd5 Rh6 27.Rf1 
Kh8 28.Rxf7 Bc5 29.Raf1 Nf6 30.Rc7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Gamarra Caceres, Carlos"]
[Black "Vasquez De la Paz, Julio"]
[Result "1/2-1/2"]
[BlackElo "2270"]
[ECO "C89"]
[EventDate "1972.05.20"]
[PlyCount "116"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 
9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 Nf6 12.d4 Bd6 13.Re1 Ng4 14.h3 Qh4 15.Qf3
h5 16.Re2 Bd7 17.Bf4 Rae8 18.Rxe8 Rxe8 19.Nd2 Nf6 20.Bxd6 cxd6 21.Nf1 Qg5 
22.Ne3 h4 23.a4 Re7 24.a5 g6 25.Rf1 Kg7 26.Nd5 Nxd5 27.Bxd5 Bxh3 28.Qxh3 
Qxd5 29.Qxh4 Re2 30.b4 Rc2 31.Re1 Rxc3 32.Re8 Rc1+ 33.Kh2 Qh5 34.Qxh5 gxh5
35.Rd8 Rc4 36.Rxd6 Rxb4 37.Rxa6 Rxd4 38.Rb6 Rb4 39.a6 h4 40.Kh3 Ra4 41.
Rxb5 Rxa6 42.Kxh4 Kg6 43.g4 f6 44.f4 Ra1 45.f5+ Kh6 46.Rb8 Kg7 47.Kg3 Ra3+
48.Kf4 Ra4+ 49.Kf3 Ra3+ 50.Ke4 Ra4+ 51.Kd5 Rxg4 52.Rb7+ Kf8 53.Ke6 Ra4 54.
Kxf6 Ra6+ 55.Kg5 Rc6 56.Rd7 Ra6 57.Rh7 Rb6 58.f6 Rb1 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Mecking, Henrique"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2540"]
[ECO "B81"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Bg2 a6 
9.f4 Be7 10.Be3 Nxd4 11.Qxd4 e5 12.Qd2 exf4 13.Bxf4 Ne5 14.Nd5 Bg4 15.h3 
Be6 16.O-O-O Bxd5 17.exd5 O-O 18.h4 f6 19.Kb1 b5 20.Qe2 Ra7 21.Rhf1 Rc7 
22.Bh3 Rc4 23.b3 Rxf4 24.Rxf4 fxg5 25.Rxf8+ Qxf8 26.Rf1 Qd8 27.hxg5 Bxg5 
28.Be6+ Kh8 29.Qf2 Bf6 30.Qa7 a5 31.a3 h5 32.Qb7 Qe8 33.Qa6 a4 34.Qxd6 
axb3 35.cxb3 Nf3 36.Qf4 Nd4 37.Qe4 Nxb3 38.Qe3 Nd4 39.Rxf6 Nxe6 40.Rxe6 
1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Paiva, Jose de Pinto"]
[Black "Camara, Helder"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "B49"]
[EventDate "1972.05.20"]
[PlyCount "88"]

1.e4 c5 2.Nf3 a6 3.Nc3 e6 4.d4 cxd4 5.Nxd4 Qc7 6.Be2 Nc6 7.Be3 Nxd4 8.Bxd4
Ne7 9.a4 Nc6 10.Be3 b6 11.O-O Bb7 12.f4 Bc5 13.Qd2 O-O 14.Rad1 Nb4 15.Kh1 
d5 16.Bxc5 bxc5 17.exd5 exd5 18.f5 f6 19.Bf3 d4 20.Ne2 Bxf3 21.Rxf3 Nd5 
22.Nf4 Nxf4 23.Qxf4 Qxf4 24.Rxf4 Rab8 25.b3 Rfe8 26.Kg1 Re3 27.Kf2 Rbe8 
28.Rd2 a5 29.Rf3 R8e5 30.Rf4 Kf7 31.h3 Ke7 32.Kg1 Re2 33.Rxe2 Rxe2 34.Rf2 
Re1+ 35.Rf1 Re3 36.Kf2 Kd6 37.Re1 Rxe1 38.Kxe1 Ke5 39.Kd2 Ke4 40.g4 h5 41.
c3 h4 42.cxd4 Kxd4 43.Kc2 c4 44.Kb2 cxb3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Quinones, Oscar Carillo"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[WhiteElo "2290"]
[ECO "C45"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Nd5 7.c4 Nb6 8.Be2
Be7 9.O-O O-O 10.Qc2 d5 11.exd6 cxd6 12.Bf4 Be6 13.Nd2 d5 14.Rad1 d4 15.
Nf3 c5 16.Bd3 g6 17.b3 Bd6 18.Bh6 Re8 19.Ng5 Qc7 20.f4 Bxf4 21.Nxe6 Bxh2+ 
22.Kh1 Rxe6 23.Rf3 Rae8 24.Qf2 Bd6 25.Rf1 f5 26.g4 f4 27.Bxf4 Bxf4 28.Rxf4
Qg7 29.Rf7 Qh6+ 30.Kg2 R6e7 31.Qf6 Nd7 32.Qxe7 Rxe7 33.Rxe7 Qg5 34.Rff7 
Ne5 35.Rg7+ Kf8 36.Rxa7 Qxg4+ 37.Kh1 Qh3+ 38.Kg1 Qg3+ 39.Kh1 Qe1+ 40.Kg2 
Qd2+ 41.Kh1 Qh6+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Rodriguez Vargas, Orestes"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2340"]
[ECO "B80"]
[EventDate "1972.05.20"]
[PlyCount "33"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nf6 7.Bg2 Be7 8.O-O 
O-O 9.Be3 Nc6 10.Qe2 d6 11.Rad1 Bd7 12.Nxc6 Bxc6 13.Rfe1 b5 14.Bf4 Rfe8 
15.a3 Rad8 16.e5 dxe5 17.Qxe5 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Rubinetti, Jorge Alberto"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[WhiteElo "2425"]
[BlackElo "2465"]
[ECO "B06"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.c3 Nf6 5.Qc2 O-O 6.Bg5 h6 7.Bxf6 Bxf6 8.Nbd2 
Nd7 9.Be2 c5 10.O-O Qc7 11.Rac1 b6 12.Bc4 e6 13.a4 Bb7 14.Qb3 a6 15.Rfe1 
Rab8 16.Qa2 Ra8 17.Qb3 Rfb8 18.d5 e5 19.Qd1 Be7 20.Nf1 Nf6 21.b4 b5 22.Bb3
Bc8 23.a5 Bd7 24.Ng3 Rc8 25.h3 Qd8 26.Rc2 Nh7 27.Nf1 Bf8 28.Ra2 Rc7 29.Bc2
Rac8 30.Ne3 h5 31.Bd3 Bh6 32.Ra1 cxb4 33.cxb4 Rc3 34.Rb1 Ng5 35.Nh2 Bxh3 
36.gxh3 Nxh3+ 37.Kf1 Qf6 38.f3 Bxe3 39.Rxe3 Qg5 40.Qe1 Qg1+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "6"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Debarnot, Roberto Luis"]
[Result "0-1"]
[WhiteElo "2340"]
[ECO "B09"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 c6 7.Be3 b5 8.Qe2 b4 9.
Nd1 Nbd7 10.Nf2 c5 11.O-O Bb7 12.c3 a5 13.g4 cxd4 14.cxd4 d5 15.e5 Ne4 16.
Ng5 Nxg5 17.fxg5 Nb6 18.h4 Nc4 19.h5 Qb6 20.Rae1 Qe6 21.Kh2 f6 22.gxf6 
exf6 23.hxg6 fxe5 24.gxh7+ Kh8 25.Bf5 Qd6 26.Nh3 Rae8 27.Bf4 exf4 28.Qxe8 
f3+ 29.Kh1 Qg3 30.Rxf3 Qxf3+ 31.Kh2 Nd6 32.Qe7 Nxf5 33.gxf5 Qxf5 34.Qxb7 
Bxd4 35.Qe7 Bxb2 36.Re2 Bc3 37.Ng5 Qf6 38.Qe3 d4 39.Qg3 d3 40.Re6 Qg7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Camara, Helder"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2340"]
[ECO "A44"]
[EventDate "1972.05.20"]
[PlyCount "57"]

1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 Nf6 5.Nf3 Be7 6.h3 O-O 7.a4 Ne8 8.g4 Nd7 9.
Ne2 g6 10.Bh6 Ng7 11.Ng3 Kh8 12.Qd2 Nf6 13.Be3 Ng8 14.g5 f5 15.gxf6 Nxf6 
16.Be2 Nfh5 17.Nxh5 Nxh5 18.O-O-O Nf4 19.Rdg1 Qe8 20.b3 Nxh3 21.Rg2 Nf4 
22.Rgh2 h5 23.Nh4 Bxh4 24.Rxh4 Kg7 25.Rg1 Kh7 26.Bxf4 exf4 27.Bxh5 gxh5 
28.Rg5 Kh6 29.Rxf4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Debarnot, Roberto Luis"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[BlackElo "2425"]
[ECO "D86"]
[EventDate "1972.05.20"]
[PlyCount "85"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2
Nc6 9.O-O b6 10.Be3 Bb7 11.f3 Na5 12.Bd3 Qd6 13.Qd2 c5 14.Rfd1 Rfd8 15.
Rac1 Rac8 16.d5 e6 17.c4 exd5 18.cxd5 c4 19.Bb1 c3 20.Qe1 Qa3 21.Bd4 Bxd4+
22.Rxd4 c2 23.Rxc2 Rxc2 24.Bxc2 Qxa2 25.Bd3 Nb3 26.Bc4 Qc2 27.Bxb3 Qxb3 
28.Qd2 a5 29.h4 Qa3 30.h5 Qe7 31.Qb2 Ba6 32.h6 Qc5 33.Kf2 Bxe2 34.Kxe2 f6 
35.Rd3 Qd6 36.Rb3 Rb8 37.Rc3 Qg3 38.Kf1 Qe5 39.Qc2 Qe8 40.Rc6 Qd8 41.Qb3 
b5 42.d6+ Kh8 43.Qf7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Godoy Bugueno, David"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[BlackElo "2540"]
[ECO "B52"]
[EventDate "1972.05.20"]
[PlyCount "76"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.d4 cxd4 7.Nxd4 Nf6 8.
Nc3 g6 9.Nb3 Bg7 10.f4 O-O 11.h3 b5 12.Qf3 b4 13.Ne2 Rfc8 14.Be3 a5 15.Nd2
Nd8 16.Rfc1 Rab8 17.Rab1 Ne6 18.c4 bxc3 19.Nxc3 Nc5 20.Bf2 Na4 21.Nb3 Nxc3
22.bxc3 Qa4 23.e5 Nh5 24.exd6 exd6 25.Nd4 Rxb1 26.Rxb1 Qxa2 27.Qb7 Qc4 28.
Nb5 Rf8 29.Nxd6 Qxf4 30.Nc8 Be5 31.Ne7+ Kg7 32.Qd5 Rb8 33.Re1 Bxc3 34.Re4 
Rb1+ 35.Be1 Qxe4 36.Qxe4 Rxe1+ 37.Qxe1 Bxe1 38.Nd5 Nf6 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Juarez, Carlos Eleodoro"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B94"]
[EventDate "1972.05.20"]
[PlyCount "43"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Nf6 6.Bg5 Nbd7 7.Bc4 Qa5 8.Qd2 
e6 9.a3 Be7 10.O-O Ne5 11.Bb3 Bd7 12.f4 Nc6 13.Nf3 h6 14.Bh4 Rd8 15.Rae1 
e5 16.f5 b5 17.Kh1 Bc8 18.Bxf6 Bxf6 19.Bxf7+ Kxf7 20.Qd5+ Ke7 21.Qxc6 Rhf8
22.b4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Panno, Oscar"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[ECO "A23"]
[EventDate "1972.05.20"]
[PlyCount "47"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 Qb6 6.e3 d5 7.cxd5 cxd5 8.d3 Bg4 
9.Be2 Bxe2 10.Qxe2 Nc6 11.Nxc6 Qxc6 12.dxe4 dxe4 13.Qb5 Rc8 14.Bd2 Qxb5 
15.Nxb5 a6 16.Nd4 Bc5 17.Nf5 g6 18.Bc3 gxf5 19.Bxf6 Bb4+ 20.Kd1 Rg8 21.Rc1
Rxc1+ 22.Kxc1 Rg6 23.Be5 Rc6+ 24.Kb1 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Quinteros, Miguel Angel"]
[Black "Quinones, Oscar Carillo"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2290"]
[ECO "A80"]
[EventDate "1972.05.20"]
[PlyCount "62"]

1.Nf3 f5 2.d4 Nf6 3.Bg5 e6 4.Nbd2 d5 5.e3 Be7 6.c4 c6 7.cxd5 cxd5 8.Ne5 
O-O 9.Be2 Nbd7 10.Nd3 Ne4 11.Bxe7 Qxe7 12.O-O Ndf6 13.f3 Nd6 14.Ne5 Bd7 
15.Bd3 Bb5 16.Bxb5 Nxb5 17.Qb3 Nd6 18.Rac1 Nf7 19.Rc3 Qd6 20.f4 Qa6 21.
Nxf7 Rxf7 22.Rfc1 Raf8 23.a4 h6 24.Qb5 Qd6 25.Rc8 Rxc8 26.Rxc8+ Kh7 27.Nf3
Rc7 28.Rxc7 Qxc7 29.Qc5 Qd7 30.b3 Ne4 31.Qc2 Qd6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Silva Nazzari, Roberto"]
[Black "Gamarra Caceres, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2250"]
[ECO "A36"]
[EventDate "1972.05.20"]
[PlyCount "38"]

1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.a3 a6 6.Rb1 Rb8 7.b4 cxb4 8.axb4 b5 
9.cxb5 axb5 10.e3 Nf6 11.d4 d5 12.Nge2 O-O 13.Nf4 e6 14.O-O Ne8 15.Qb3 Nd6
16.Nd3 Nc4 17.Rd1 Qb6 18.Ra1 Bb7 19.Nc5 Ra8 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Silva Sanchez, Carlos"]
[Black "Paiva, Jose de Pinto"]
[Result "1-0"]
[ECO "C97"]
[EventDate "1972.05.20"]
[PlyCount "119"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.b4 cxb4 13.cxb4 Nc4 14.Nbd2 Bb7 15.Nxc4 
bxc4 16.Rb1 Rfe8 17.d5 Bf8 18.Re3 c3 19.Rb3 Rac8 20.Qe1 Qb6 21.Rexc3 Rxc3 
22.Rxc3 Qxb4 23.Bd2 Qb2 24.Bb1 Qb6 25.Be3 Qd8 26.Rb3 Bc8 27.Bb6 Qd7 28.Rb4
Nh5 29.Bc2 Qe7 30.Ba4 Bd7 31.Bxd7 Qxd7 32.Rc4 Nf4 33.Qa5 Qb5 34.Qxb5 axb5 
35.Rb4 Ne2+ 36.Kf1 Nc3 37.Be3 f5 38.exf5 Ra8 39.Bd2 Nxd5 40.Rxb5 Nf6 41.
Ra5 Rb8 42.g4 Rb2 43.Be3 h6 44.Ra8 Nd7 45.Rd8 Nb8 46.Nh4 Nc6 47.Rc8 Ne7 
48.Ra8 Nc6 49.Ng6 Rb8 50.Rxb8 Nxb8 51.Bb6 Na6 52.Ke2 Kf7 53.a3 Ke8 54.h4 
Be7 55.Nxe7 Kxe7 56.g5 d5 57.Kd2 hxg5 58.hxg5 Kd6 59.Ba7 d4 60.f4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Szmetan, Jorge"]
[Black "Rodriguez Vargas, Orestes"]
[Result "0-1"]
[BlackElo "2420"]
[ECO "B57"]
[EventDate "1972.05.20"]
[PlyCount "100"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
a6 9.Be3 Qc7 10.Bd3 b5 11.a3 Bb7 12.f4 Be7 13.Qf3 O-O 14.Qh3 Rfd8 15.f5 
exf5 16.Rxf5 Bc8 17.Raf1 Ne5 18.Qg3 Bxf5 19.Rxf5 Qd7 20.Kh1 Re8 21.Bg5 Nh5
22.Qh4 Bxg5 23.Rxg5 Nf6 24.Nd4 Ng6 25.Qf2 Qa7 26.Rf5 Re5 27.Rxf6 gxf6 28.
Nd5 Rxd5 29.exd5 Re8 30.h4 Qe7 31.Nf5 Qe1+ 32.Qxe1 Rxe1+ 33.Kh2 Nf4 34.
Nxd6 Nxd3 35.cxd3 Rd1 36.Ne4 Rxd3 37.Nxf6+ Kf8 38.g4 Ke7 39.g5 Rb3 40.h5 
Rxb2+ 41.Kg3 Rb1 42.Nxh7 b4 43.axb4 Rxb4 44.h6 a5 45.Nf6 Kf8 46.d6 a4 47.
d7 Rb8 48.Ne8 Kg8 49.Nf6+ Kh8 50.Ne4 Rd8 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "7"]
[White "Vasquez De la Paz, Julio"]
[Black "Chemin, Vitorio"]
[Result "0-1"]
[WhiteElo "2270"]
[ECO "D19"]
[EventDate "1972.05.20"]
[PlyCount "72"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Qe2 Nbd7 10.Rd1 Qc7 11.e4 Bg6 12.e5 Nd5 13.Nxd5 cxd5 14.Bd3 Rac8 15.Bxg6
hxg6 16.Ng5 Qc2 17.Qg4 Be7 18.Nh3 Rc4 19.Bg5 Nxe5 20.Qg3 Bxg5 21.Nxg5 Nd7 
22.h3 Nf6 23.Rac1 Qxb2 24.Rb1 Qc2 25.Rdc1 Qa2 26.Re1 b6 27.Rb3 Qd2 28.Rbe3
Qxd4 29.Qd6 Qf4 30.Re5 Rc2 31.Rf1 Ne8 32.Nxe6 fxe6 33.Qxe6+ Qf7 34.Qxd5 
Qxd5 35.Rxd5 Ra2 36.a5 Nf6 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Camara, Helder"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2420"]
[ECO "E92"]
[EventDate "1972.05.20"]
[PlyCount "92"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.dxe5 dxe5 8.Qxd8 
Rxd8 9.Bg5 Re8 10.O-O-O h6 11.Bh4 Na6 12.Ne1 c6 13.Nd3 Nd7 14.Bg4 Ndc5 15.
Bxc8 Rexc8 16.Nxc5 Nxc5 17.Be7 Bf8 18.Bxc5 Bxc5 19.f3 Kf8 20.a3 Ke8 21.Kc2
Rd8 22.Ne2 Ke7 23.Nc1 Be3 24.Nd3 Bd4 25.Rhe1 h5 26.Nc1 Rd7 27.Rd3 a6 28.
Red1 c5 29.a4 b5 30.axb5 axb5 31.cxb5 Rb7 32.Rb3 Kd6 33.Ne2 Ra5 34.Nc3 Kc7
35.b6+ Kc6 36.Nd5 c4 37.Ra3 Rb5 38.b3 cxb3+ 39.Rxb3 Rxb3 40.Kxb3 Bxb6 41.
Kc4 Bd4 42.Rd2 Rb1 43.Nb4+ Kc7 44.Ra2 Kd6 45.Ra6+ Kd7 46.Nd3 Rg1 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Carvajal Aliaga, Juan"]
[Black "Debarnot, Roberto Luis"]
[Result "0-1"]
[ECO "D95"]
[EventDate "1972.05.20"]
[PlyCount "76"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3 c5 7.cxd5 cxd4 8.Nxd4 
a5 9.a4 Qd6 10.Bc4 Nbd7 11.O-O Nb6 12.Rd1 Qc5 13.Be2 Nbxd5 14.Nxd5 Nxd5 
15.Bf3 Nb4 16.Bd2 e5 17.Rac1 Qb6 18.Nb5 Be6 19.Qa3 Nc6 20.b4 axb4 21.Bxb4 
Rfd8 22.Bc5 Qa5 23.Rxd8+ Nxd8 24.Rd1 Nc6 25.Nd6 Qxa4 26.Qxa4 Rxa4 27.Nxb7 
e4 28.Nd8 Bb3 29.Nxc6 Bxd1 30.Ne7+ Kh8 31.Bxd1 Ra1 32.h4 Rxd1+ 33.Kh2 Be5+
34.g3 Bd6 35.Bd4+ Rxd4 36.Nxg6+ hxg6 37.exd4 Kg7 38.Kh3 f5 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Godoy Bugueno, David"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[BlackElo "2425"]
[ECO "C95"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Ng3 g6 15.Bg5 h6 
16.Bd2 Bg7 17.Qc1 Kh7 18.a4 c5 19.d5 Nb6 20.Qd1 Bc8 21.b3 bxa4 22.bxa4 a5 
23.Qe2 Ba6 24.Bd3 c4 25.Bc2 Nfd7 26.Be3 Qc7 27.h4 h5 28.Ng5+ Kg8 29.Rab1 
Rab8 30.Nxh5 gxh5 31.Qxh5 Nf6 32.Qxf7+ Qxf7 33.Nxf7 Kxf7 34.Bxb6 Nd7 35.
Bxa5 Bh6 36.Kf1 Ke7 37.Ke2 Nc5 38.Bb6 Nd3 39.Rg1 Nc1+ 40.Kf3 Rf8+ 41.Kg4 
Bc8+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Mecking, Henrique"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[WhiteElo "2540"]
[ECO "B61"]
[EventDate "1972.05.20"]
[PlyCount "45"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O Nxd4 9.Qxd4 Qa5 10.f4 h6 11.Bh4 g5 12.e5 gxh4 13.exf6 e6 14.Be2 Qc5 
15.Qd3 Bc6 16.Bf3 Bxf3 17.Qxf3 b5 18.Rd2 b4 19.Ne4 Qc7 20.f5 d5 21.fxe6 
fxe6 22.Re1 Qf7 23.Rxd5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Paiva, Jose de Pinto"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[ECO "C78"]
[EventDate "1972.05.20"]
[PlyCount "65"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 d6 7.c3 Na5 8.Bc2 c5 
9.d4 Qc7 10.h3 g6 11.b4 cxb4 12.cxb4 Nc4 13.a4 Rb8 14.axb5 axb5 15.Nc3 Bd7
16.Bg5 Bg7 17.dxe5 dxe5 18.Bxf6 Bxf6 19.Nd5 Qd8 20.Ra7 Bc6 21.Nc7+ Kf8 22.
Qc1 Rb7 23.Rxb7 Bxb7 24.Nxb5 Qb6 25.Ba4 Nd6 26.Nxd6 Qxd6 27.Qc4 Kg7 28.Rd1
Qb8 29.Rd7 Rf8 30.Bb3 Kh6 31.g4 Ba8 32.h4 Bd8 33.g5+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Panno, Oscar"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2340"]
[ECO "E18"]
[EventDate "1972.05.20"]
[PlyCount "48"]

1.Nf3 c5 2.c4 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 d5 8.Ne5 O-O 
9.dxc5 Bxc5 10.Bg5 h6 11.Bxf6 Qxf6 12.Nd3 Bd4 13.Nf4 Bxc3 14.bxc3 g5 15.
Nh5 Qg6 16.g4 Nd7 17.cxd5 Bxd5 18.Bxd5 exd5 19.Qxd5 Nf6 20.Qf3 Nxh5 21.
gxh5 Qe6 22.Rfd1 Rae8 23.e3 Rc8 24.Rd3 Rfd8 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Silva Nazzari, Roberto"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[WhiteElo "2250"]
[ECO "B43"]
[EventDate "1972.05.20"]
[PlyCount "160"]

1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nf6 7.Bg2 Be7 8.O-O 
O-O 9.Nde2 Nc6 10.b3 b5 11.Bb2 Bb7 12.Nf4 Rac8 13.Qe2 Nd4 14.Qd3 Nc6 15.
Rac1 Rfd8 16.Rfd1 Ne5 17.Qe2 d6 18.Nb1 Bc6 19.Nd2 b4 20.c4 Nfd7 21.Nd3 
Nxd3 22.Qxd3 Bf6 23.Bxf6 Nxf6 24.Nf1 Qb7 25.f3 Qb6+ 26.Qd4 Qc7 27.Qd2 a5 
28.Ne3 Bb7 29.Qd4 Kf8 30.Bh3 Ke7 31.Bg2 Qc5 32.Qxc5 Rxc5 33.Kf2 a4 34.Nc2 
Rb8 35.Nd4 Bc6 36.Ke3 g6 37.Nc2 Ra5 38.Ra1 Nd7 39.Nd4 Rb6 40.Rab1 e5 41.
Nc2 Nc5 42.Bh3 h5 43.Rd2 Ra8 44.Rf2 Be8 45.Rd2 Bc6 46.Rf2 h4 47.Rff1 Rh8 
48.Rh1 axb3 49.axb3 Bb7 50.Rb2 hxg3 51.hxg3 f5 52.Bg2 f4+ 53.gxf4 exf4+ 
54.Ke2 Rxh1 55.Bxh1 Kf6 56.Rb1 Ke5 57.Bg2 Bc8 58.Kf2 Be6 59.Bf1 g5 60.Be2 
Rb7 61.Kg2 Rb8 62.Bd1 Bf7 63.Be2 Bg6 64.Rd1 Bf7 65.Rb1 Be6 66.Bd1 Bd7 67.
Be2 Bc6 68.Kf2 g4 69.fxg4 Nxe4+ 70.Ke1 Nc3 71.Ra1 Be4 72.Ra5+ d5 73.Bd1 
Rh8 74.Nxb4 Rh1+ 75.Kd2 Nxd1 76.Nxd5 Bxd5 77.Rxd5+ Ke4 78.Rd8 f3 79.Rf8 f2
80.Re8+ Kd4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Silva Sanchez, Carlos"]
[Black "Quinones, Oscar Carillo"]
[Result "1-0"]
[BlackElo "2290"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "49"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nc6 6.Nxc6 dxc6 7.O-O e5 8.Nd2 
Nf6 9.Nc4 Bg4 10.Qe1 Nd7 11.f4 exf4 12.Bxf4 Bc5+ 13.Kh1 O-O 14.Qg3 Bh5 15.
Nd6 Ra7 16.e5 Bxd6 17.exd6 Re8 18.Bg5 f6 19.Bh6 g6 20.Bc4+ Kh8 21.Rae1 Ne5
22.d7 Nxd7 23.Rxe8+ Qxe8 24.Re1 Ne5 25.Qf2 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "C70"]
[EventDate "1972.05.20"]
[PlyCount "53"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.d4 exd4 7.Qxd4 d6 8.Bxf7+ 
Kxf7 9.Qd5+ Be6 10.Ng5+ Qxg5 11.Qxg5 Be7 12.Qh5+ g6 13.Qf3+ Nf6 14.b3 c5 
15.Bb2 Nc6 16.Nd2 Rad8 17.h3 Nb4 18.O-O Nxc2 19.Rac1 Nb4 20.Bxf6 Bxf6 21.
e5 dxe5 22.Ne4 Bf5 23.Nxf6 Kxf6 24.Rxc5 Rd3 25.Qb7 Rhd8 26.Qxh7 Nxa2 27.
Ra1 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "8"]
[White "Vasquez De la Paz, Julio"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2465"]
[ECO "A37"]
[EventDate "1972.05.20"]
[PlyCount "86"]

1.Nf3 g6 2.c4 Bg7 3.Nc3 c5 4.g3 Nc6 5.Bg2 e6 6.O-O Nge7 7.d3 d5 8.cxd5 
exd5 9.Bd2 h6 10.Rc1 O-O 11.a3 b6 12.Qa4 d4 13.Nb1 Bd7 14.Qc2 a5 15.b3 Be6
16.Be1 Nd5 17.Nfd2 Re8 18.Nc4 b5 19.Ncd2 Rc8 20.Ne4 Bf8 21.Qb2 Qb6 22.Rc2 
f5 23.Ned2 Bf7 24.Nf3 b4 25.a4 Bg7 26.Nbd2 Rxe2 27.Nc4 Rxc2 28.Qxc2 Qc7 
29.Bd2 Re8 30.Re1 Rxe1+ 31.Bxe1 Nc3 32.Qd2 g5 33.h3 Ne7 34.Nh2 Ng6 35.Bf3 
Ne5 36.Bg2 Nxc4 37.dxc4 Qe7 38.Bf3 h5 39.g4 fxg4 40.hxg4 h4 41.Kg2 Be5 42.
Qc1 Qf6 43.Bd2 h3+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Alborta Tito, Eduardo"]
[Black "Camara, Helder"]
[Result "1/2-1/2"]
[BlackElo "2390"]
[ECO "B43"]
[EventDate "1972.05.20"]
[PlyCount "112"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nc6 7.Nxc6 dxc6 8.O-O
e5 9.Be3 Nf6 10.h3 Be6 11.Qf3 Be7 12.a4 a5 13.Ne2 Nd7 14.Qg3 g5 15.Nd4 Nc5
16.Nxe6 Nxe6 17.Bc4 Nf4 18.f3 O-O 19.Qf2 c5 20.Rfd1 Rad8 21.Qe1 Ng6 22.
Rxd8 Rxd8 23.Rd1 b6 24.Rxd8+ Qxd8 25.Qd2 Qxd2 26.Bxd2 h6 27.Kf2 Bd8 28.Ke3
Kf8 29.Bc1 Nf4 30.g3 Ne6 31.Bd2 Nc7 32.Bc3 Bf6 33.b3 h5 34.g4 h4 35.Bd2 
Be7 36.Bc3 Bd6 37.Kd3 Ke7 38.Bd2 f6 39.Ke3 Kd7 40.Bb5+ Kd8 41.Bf1 Ne6 42.
c3 Nf4 43.Kf2 Ng6 44.Be3 Kc7 45.Bb5 Nf8 46.Bd2 Ne6 47.Be3 Be7 48.Bc4 Nf4 
49.Bxf4 exf4 50.Ke2 Bd6 51.Kd3 Be5 52.Bb5 Bd6 53.Kc4 Be5 54.Kd3 Bd6 55.Kc4
Be5 56.Kd3 Bd6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Paiva, Jose de Pinto"]
[Result "1/2-1/2"]
[ECO "C44"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 d5 5.exd5 Qxd5 6.cxd4 Bg4 7.Be2 Nf6 8.Nc3
Qa5 9.O-O O-O-O 10.Be3 Nd5 11.Nxd5 Qxd5 12.h3 Bh5 13.Rc1 Bd6 14.a3 g5 15.
g4 Bxg4 16.hxg4 h5 17.Rc5 Bxc5 18.dxc5 Qe6 19.Nxg5 Rxd1 20.Nxe6 Rxf1+ 21.
Kxf1 fxe6 22.gxh5 Ne7 23.Bd4 Rh7 24.Kg2 Nf5 25.Be5 Ng7 26.Kh3 Nxh5 27.Kg4 
Ng7 28.Kg5 Nf5 29.Kf6 Kd7 30.Bc4 Rh6+ 31.Kf7 Ne7 32.Bg7 Rh7 33.Bxe6+ Kc6 
34.f4 Nd5 35.Bxd5+ Kxd5 36.f5 Rh5 37.f6 Rh2 38.Kg8 Rxb2 39.f7 Rf2 40.f8=Q 
Rxf8+ 41.Bxf8 b6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Debarnot, Roberto Luis"]
[Black "Vasquez De la Paz, Julio"]
[Result "0-1"]
[BlackElo "2270"]
[ECO "E56"]
[EventDate "1972.05.20"]
[PlyCount "104"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 O-O 5.e3 d5 6.a3 Bxc3+ 7.bxc3 c5 8.cxd5 
exd5 9.Bd3 Nc6 10.h3 c4 11.Bc2 Ne7 12.a4 Bf5 13.Ba3 Bxc2 14.Qxc2 Re8 15.
Rb1 b6 16.O-O Ng6 17.Nh2 Qd7 18.Rbe1 Re6 19.f3 Rae8 20.Bc1 Nf4 21.Bd2 Nd3 
22.Rb1 Nh5 23.f4 Ng3 24.Rf3 Nf5 25.Ng4 f6 26.Rb5 h5 27.Nf2 Nxe3 28.Qb1 
Nxf2 29.Rxf2 Nf5 30.a5 h4 31.axb6 Rxb6 32.Rxb6 axb6 33.Qxb6 Ng3 34.Kh2 Qf5
35.Qc6 Rb8 36.Rf3 Rb1 37.Rxg3 hxg3+ 38.Kxg3 Qe4 39.Qc8+ Kh7 40.Qg4 Qg6 41.
Qxg6+ Kxg6 42.Kf3 Rb2 43.Be1 Rc2 44.g4 f5 45.Kg3 Re2 46.Bf2 Rd2 47.Be1 
Rd3+ 48.Kh4 Re3 49.Bd2 Re2 50.Bc1 Rc2 51.Ba3 Rxc3 52.g5 Rf3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Gamarra Caceres, Carlos"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[BlackElo "2540"]
[ECO "B25"]
[EventDate "1972.05.20"]
[PlyCount "51"]

1.e4 c5 2.Nc3 d6 3.g3 Nc6 4.Bg2 g6 5.d3 Bg7 6.f4 f5 7.exf5 gxf5 8.Nf3 Nf6 
9.O-O O-O 10.Nh4 Bd7 11.Bd2 Rb8 12.Rb1 e6 13.Ne2 b5 14.h3 b4 15.Kh2 a5 16.
c4 bxc3 17.bxc3 Rxb1 18.Qxb1 Qc7 19.Qc2 Rb8 20.Rb1 Kf7 21.a3 Rb6 22.c4 Qb8
23.Rxb6 Qxb6 24.Bc3 Nd4 25.Nxd4 cxd4 26.Bd2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Juarez, Carlos Eleodoro"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2340"]
[ECO "A00"]
[EventDate "1972.05.20"]
[PlyCount "0"]

1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Quinones, Oscar Carillo"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[WhiteElo "2290"]
[ECO "E84"]
[EventDate "1972.05.20"]
[PlyCount "42"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 Re8 8.Qd2 Rb8
9.Nc1 e5 10.Nb3 exd4 11.Nxd4 Nxd4 12.Bxd4 a6 13.Be2 Bd7 14.O-O b5 15.cxb5 
axb5 16.b4 c5 17.bxc5 dxc5 18.Bxc5 b4 19.Nd5 Nxd5 20.exd5 Bc3 21.Qc2 Bf5 
0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Quinteros, Miguel Angel"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2250"]
[ECO "A04"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.d3 e6 6.e4 Nge7 7.Re1 O-O 8.c3 d6 
9.d4 cxd4 10.cxd4 Qb6 11.d5 Nd4 12.Nc3 exd5 13.exd5 Nef5 14.Nxd4 Bxd4 15.
Ne4 h5 16.Bg5 f6 17.Bf4 Bd7 18.Qd2 Be5 19.Bxe5 dxe5 20.Kh1 Kg7 21.b4 a5 
22.Rab1 axb4 23.Rxb4 Qa7 24.Reb1 Qxa2 25.Rxb7 Rf7 26.Qe1 Qa5 27.Qc1 Rc8 
28.Qb2 Be8 29.d6 Bc6 30.Rxf7+ Kxf7 31.Qb3+ Kg7 32.Qe6 Bxe4 33.Bxe4 Qa7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Rodriguez Vargas, Orestes"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2420"]
[ECO "B22"]
[EventDate "1972.05.20"]
[PlyCount "111"]

1.e4 c5 2.Nf3 Nc6 3.c3 Nf6 4.e5 Nd5 5.d4 cxd4 6.Bc4 Nb6 7.Bb3 d5 8.cxd4 
Bg4 9.O-O e6 10.Nc3 Be7 11.h3 Bxf3 12.Qxf3 Nxd4 13.Qg4 Nxb3 14.Qxg7 Nxa1 
15.Qxh8+ Kd7 16.Qxh7 Qh8 17.Qd3 Qxe5 18.Bd2 Nc4 19.Rxa1 Nxd2 20.Qxd2 Bd6 
21.g3 Rh8 22.Kg2 d4 23.Ne2 Qd5+ 24.f3 Rg8 25.Rd1 e5 26.Nc3 Qc6 27.Ne4 Be7 
28.Rc1 Qb5 29.Qc2 f5 30.Nf2 Ke6 31.g4 e4 32.fxe4 fxg4 33.hxg4 Bh4 34.a4 
Qb4 35.Nd3 Qd6 36.Qb3+ Ke7 37.Qxb7+ Ke8 38.Qb5+ Ke7 39.Qb7+ Ke8 40.Qa8+ 
Bd8 41.Qc6+ Qxc6 42.Rxc6 Rxg4+ 43.Kf3 Rh4 44.Rg6 a5 45.Ne5 Rh3+ 46.Kg4 Rh2
47.Kf5 Ke7 48.Rg7+ Ke8 49.Rb7 Rf2+ 50.Ke6 Bg5 51.Kd5 Be3 52.Nd3 Rd2 53.Rb3
Ke7 54.e5 Bg1 55.e6 Kf6 56.Nc5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Rubinetti, Jorge Alberto"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2425"]
[ECO "B96"]
[EventDate "1972.05.20"]
[PlyCount "41"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 h6 8.Bh4 Qb6 
9.a3 Nc6 10.Bf2 Nxd4 11.Bxd4 Qc6 12.Bd3 Be7 13.Qe2 O-O 14.e5 dxe5 15.fxe5 
Nd7 16.O-O-O Bc5 17.Bxc5 Qxc5 18.Rhe1 b5 19.Qe4 f5 20.Qxa8 Nxe5 21.Qb8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "9"]
[White "Szmetan, Jorge"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[ECO "E15"]
[EventDate "1972.05.20"]
[PlyCount "45"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qa4 c5 6.Bg2 Bb7 7.O-O cxd4 8.Nxd4 
Bxg2 9.Kxg2 Qc8 10.Nc3 Bc5 11.Qd1 O-O 12.e4 Bb4 13.e5 Ne8 14.Qf3 Bxc3 15.
Qxc3 f6 16.exf6 Nxf6 17.b3 Nc6 18.Bb2 Nxd4 19.Qxd4 b5 20.cxb5 Qb7+ 21.Kg1 
Qxb5 22.Rac1 Rf7 23.Rc5 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Alborta Tito, Eduardo"]
[Black "Debarnot, Roberto Luis"]
[Result "0-1"]
[ECO "B00"]
[EventDate "1972.05.20"]
[PlyCount "48"]

1.e4 Nc6 2.d4 e5 3.d5 Nce7 4.Bd3 Ng6 5.Nc3 Nf6 6.Nce2 c6 7.dxc6 bxc6 8.Bg5
Rb8 9.b3 d5 10.Ng3 Nf4 11.Bxf4 exf4 12.e5 fxg3 13.exf6 gxf2+ 14.Kxf2 Qxf6+
15.Nf3 Bc5+ 16.Kf1 O-O 17.Rb1 Re8 18.h4 Re3 19.b4 Bb6 20.Rb3 Qf4 21.Be2 
Bf5 22.Qe1 Rbe8 23.g3 Qxf3+ 24.Bxf3 Rxe1+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[BlackElo "2465"]
[ECO "B43"]
[EventDate "1972.05.20"]
[PlyCount "116"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.Nc3 Qc7 7.O-O Bc5 8.Be3 
d6 9.Qe2 Nbd7 10.Nb3 Bxe3 11.Qxe3 b5 12.a4 b4 13.Nb1 O-O 14.N1d2 d5 15.h3 
Bb7 16.Rfe1 dxe4 17.Nxe4 Nd5 18.Qd2 h6 19.Rad1 Rac8 20.Nd4 Rfd8 21.Nf3 a5 
22.b3 N7f6 23.Nxf6+ Nxf6 24.Ne5 Rd5 25.Qe2 Rcd8 26.f4 Rd4 27.Rf1 Be4 28.
Bxe4 Rxe4 29.Rxd8+ Qxd8 30.Rd1 Qb6+ 31.Qf2 Qxf2+ 32.Kxf2 Rxf4+ 33.Kg1 Nd5 
34.Nc4 Rf5 35.Nxa5 Ne3 36.Rd8+ Kh7 37.Nc6 Rf1+ 38.Kh2 Nxc2 39.Rd2 Rc1 40.
Re2 Na1 41.Nxb4 Nxb3 42.Rb2 Na5 43.Nd3 Rc3 44.Ne5 Rc7 45.Rb6 Nc4 46.Rc6 
Rxc6 47.Nxc6 e5 48.a5 Kg6 49.a6 Kf6 50.Kg3 Ke6 51.Kf3 Kd5 52.Ne7+ Kc5 53.
a7 Nb6 54.Nf5 Kc6 55.Nxg7 Kb7 56.Ke4 f6 57.Kf5 Nd5 58.g4 Kxa7 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Camara, Helder"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "E61"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d6 5.Bg5 h6 6.Bh4 O-O 7.e3 Bf5 8.h3 Ne4 
9.Nxe4 Bxe4 10.Bd3 Bxd3 11.Qxd3 Nc6 12.O-O Qd7 13.Bg3 a5 14.a3 a4 15.Rac1 
Na5 16.Nd2 Qc6 17.f4 f5 18.Nf3 e6 19.Nd2 Qa6 20.Qc2 c5 21.dxc5 dxc5 22.
Qxa4 Bxb2 23.Rc2 Bf6 24.Rb1 Rfd8 25.Nf3 Rd3 26.Bh4 Bxh4 27.Nxh4 Nb3 28.
Qxa6 Rxa6 29.Nxg6 Rxa3 30.Re1 Na5 31.e4 Re3 32.Rxe3 Rxe3 33.exf5 exf5 34.
Ne5 Re4 35.g3 h5 36.h4 Kg7 37.Rb2 Nxc4 38.Rxb7+ Kh6 39.Nd7 Re2 40.Nf8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Chemin, Vitorio"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1-0"]
[BlackElo "2340"]
[ECO "E93"]
[EventDate "1972.05.20"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.d5 Nbd7 8.Bg5 h6 
9.Bh4 g5 10.Bg3 Nh5 11.h4 g4 12.Nd2 f5 13.exf5 Ndf6 14.Bxg4 Nxg4 15.Qxg4 
Nxg3 16.fxg3 Bxf5 17.Qe2 e4 18.O-O Qf6 19.Ndxe4 Qd4+ 20.Kh2 Rae8 21.Rxf5 
Rxf5 22.Nf6+ Rxf6 23.Qxe8+ Rf8 24.Qe6+ Kh8 25.Re1 Qd2 26.Qe2 Qd4 27.Nb5 
Qc5 28.b4 Qxb4 29.Nxc7 Be5 30.Ne6 Rg8 31.Qh5 Bxg3+ 32.Kh3 Bf4 33.Nxf4 Qc3+
34.Nd3 Qxd3+ 35.Qf3 Qxf3+ 36.gxf3 Rc8 37.Kg4 Rxc4+ 38.Kf5 Kg8 39.Ke6 Ra4 
40.Kxd6 Rxa2 41.Ke7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Gamarra Caceres, Carlos"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[ECO "C83"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Qe2 Be7 10.c3 Nc5 11.Nd4 Nxd4 12.cxd4 Nxb3 13.axb3 c5 14.dxc5 Bxc5 
15.Rxa6 O-O 16.Rxa8 Qxa8 17.Qxb5 Bd4 18.Qe2 Qb8 19.Re1 Rc8 20.Bd2 Bxb2 21.
b4 Rc4 22.f3 Qb6+ 23.Kh1 Bf5 24.h3 h5 25.g4 hxg4 26.hxg4 Qg6 27.Qf1 Bxg4 
28.fxg4 Qh7+ 29.Kg2 Rxg4+ 30.Kf3 Qf5+ 31.Ke2 Qe4+ 32.Be3 Rg2+ 33.Qxg2 
Qxg2+ 34.Kd1 Qg4+ 35.Kc2 Qxb4 36.Bd2 Qb7 37.Nc3 Ba3 38.Be3 Qb2+ 39.Kd3 Qb3
40.Bd4 Qc4+ 41.Ke3 Bb2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Mecking, Henrique"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2250"]
[ECO "B03"]
[EventDate "1972.05.20"]
[PlyCount "57"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Bf5 7.Nc3 e6 8.Nf3 Bb4
9.Bd2 c5 10.Nb5 Bxd2+ 11.Qxd2 O-O 12.dxc5 N6d7 13.Rd1 a6 14.Nd6 Qc7 15.b4 
Bg4 16.Be2 Nc6 17.O-O Bxf3 18.gxf3 Ndxe5 19.f4 Ng6 20.Bf3 Rad8 21.b5 Na5 
22.Qb4 axb5 23.Nxb5 Nc6 24.Nxc7 Nxb4 25.Bxb7 Nxa2 26.Nb5 Rb8 27.c6 Nb4 28.
Nd6 Ne7 29.c7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Paiva, Jose de Pinto"]
[Black "Vasquez De la Paz, Julio"]
[Result "0-1"]
[BlackElo "2270"]
[ECO "B22"]
[EventDate "1972.05.20"]
[PlyCount "86"]

1.e4 c5 2.Nf3 d6 3.c3 Nc6 4.d4 cxd4 5.cxd4 Nf6 6.Nc3 Bg4 7.d5 Nb8 8.Qb3 
Bc8 9.e5 dxe5 10.Nxe5 Nbd7 11.f4 a6 12.Be3 g6 13.Bc4 b5 14.Bxb5 axb5 15.d6
Nxe5 16.fxe5 Ng4 17.Nd5 Be6 18.Qxb5+ Bd7 19.Qb7 Qb8 20.Nc7+ Kd8 21.Qxa8 
Qxa8 22.Nxa8 Nxe3 23.Ke2 Bh6 24.Nb6 Bb5+ 25.Kf2 exd6 26.exd6 Nf5 27.Rhe1 
Bg7 28.Re4 Re8 29.Rc1 Nxd6 30.Rxe8+ Kxe8 31.Rd1 Nf5 32.Nd5 Bd4+ 33.Ke1 Be5
34.g3 Bc6 35.b3 Nd4 36.Ne3 Nf3+ 37.Kf2 Nxh2 38.Rc1 Bb7 39.Rc4 Nf3 40.a4 
Nd2 41.Rb4 Ne4+ 42.Kg1 Bc6 43.Ng4 Bc3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Rodriguez Vargas, Orestes"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2425"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6 6.O-O Bg7 7.c3 d6 8.f4 Nf6 
9.Nd2 O-O 10.N2f3 Nbd7 11.Bc2 Qc7 12.Qe1 b5 13.Qh4 Bb7 14.f5 e5 15.Ne2 d5 
16.exd5 Bxd5 17.Bg5 Qc4 18.Qe1 Be4 19.Bxe4 Nxe4 20.fxg6 Nxg5 21.Nxg5 hxg6 
22.Ng3 f6 23.N5e4 f5 24.Nd2 Qc5+ 25.Kh1 e4 26.Nb3 Qe7 27.Nd4 Rae8 28.Nge2 
Nc5 29.Nf4 Qf7 30.Qg3 Kh7 31.b4 Na4 32.Rad1 Nb2 33.Rde1 Bh6 34.h4 Bxf4 35.
Rxf4 Nd3 36.Ref1 Nxf4 37.Rxf4 e3 38.h5 e2 39.hxg6+ Qxg6 40.Rh4+ Kg7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Silva Sanchez, Carlos"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[ECO "C93"]
[EventDate "1972.05.20"]
[PlyCount "90"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.d4 d6 8.c3 O-O 
9.h3 h6 10.Re1 Re8 11.Nbd2 Bf8 12.Nf1 Bb7 13.Ng3 Na5 14.Bc2 Nc4 15.Bd3 Nb6
16.Bd2 Nbd7 17.Bc2 g6 18.Qc1 Kh7 19.Bb3 Qe7 20.Nh4 Bg7 21.Bc2 Ng8 22.Nhf5 
gxf5 23.Nxf5 Qf8 24.Re3 Bh8 25.d5 c6 26.Rg3 Ndf6 27.b3 cxd5 28.exd5 e4 29.
c4 Bc8 30.Rf3 Bxf5 31.Rxf5 Ne7 32.Rf3 Ng6 33.Re3 Nd7 34.Rxe4 Rxe4 35.Bxe4 
Bxa1 36.Qxa1 Qe7 37.Bf5 bxc4 38.bxc4 Qf6 39.Qxf6 Nxf6 40.Bc3 Ng8 41.c5 Ne7
42.Bd7 Nxd5 43.Ba5 Ra7 44.c6 Ne5 45.Bf5+ Kg7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "10"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Quinones, Oscar Carillo"]
[Result "0-1"]
[WhiteElo "2340"]
[BlackElo "2290"]
[ECO "C75"]
[EventDate "1972.05.20"]
[PlyCount "108"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.O-O Nge7 7.d4 Ng6 8.Be3 Be7
9.Nbd2 h6 10.Re1 Bg5 11.dxe5 Bxe3 12.Rxe3 dxe5 13.Nf1 Qf6 14.Rd3 Be6 15.
Bxc6+ bxc6 16.Qa4 O-O 17.Qxc6 Nf4 18.Re3 Nxg2 19.Rd3 Nf4 20.Re3 Qg6+ 21.
Ng3 Qg4 22.Qxc7 f5 23.exf5 Bd5 24.Ne1 Rxf5 25.f3 Nh3+ 26.Kg2 Ng5 27.Qd7 
Qh3+ 28.Kg1 Be6 29.Qc6 Rff8 30.Rd1 Rac8 31.Qxa6 Bc4 32.Qb7 Qh4 33.Kg2 Nh3 
34.Re4 Nf4+ 35.Kg1 Nh3+ 36.Kg2 Nf4+ 37.Kh1 Be6 38.Rxe5 Bh3 39.Re7 Qf6 40.
Rd2 Rce8 41.Rxe8 Rxe8 42.Rd1 Qg5 43.Qb6 h5 44.Qf2 Qh4 45.Ne4 Qe7 46.Qg3 
Rf8 47.Qg5 Qa7 48.Rd8 Qe3 49.Nf6+ Kf7 50.Rxf8+ Kxf8 51.Nh7+ Kg8 52.Qg1 Qe2
53.Ng5 Bf1 54.Qg3 Bg2+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Carvajal Aliaga, Juan"]
[Black "Silva Sanchez, Carlos"]
[Result "0-1"]
[ECO "B38"]
[EventDate "1972.05.20"]
[PlyCount "108"]

1.d4 Nf6 2.c4 c5 3.Nf3 g6 4.Nc3 Bg7 5.e4 cxd4 6.Nxd4 d6 7.Be2 O-O 8.Be3 
Nc6 9.f3 a6 10.O-O Nd7 11.Qd2 Nde5 12.f4 Ng4 13.Nxc6 bxc6 14.Bxg4 Bxg4 15.
f5 gxf5 16.h3 f4 17.Rxf4 Be6 18.Bd4 f6 19.Qd3 Qe8 20.Ne2 Qf7 21.b3 a5 22.
a4 Rab8 23.Rh4 Bd7 24.Ng3 Rb4 25.Be3 Rfb8 26.Rb1 Be6 27.Nf5 Bxc4 28.Qc3 
Be6 29.Nxg7 Qxg7 30.Qxc6 Rc8 31.Qa6 Rc2 32.Qf1 d5 33.Bf2 dxe4 34.Rh5 Bxb3 
35.Qa6 e3 36.Qa8+ Kf7 37.Bxe3 Be6 38.Rxb4 axb4 39.Qe4 Rc4 40.Qxh7 Qxh7 41.
Rxh7+ Kf8 42.Bh6+ Ke8 43.Rh8+ Kd7 44.Rb8 Kc7 45.Re8 b3 46.Rxe7+ Kd6 47.Bf8
Rc2 48.Re8+ Ke5 49.Rb8 Bd5 50.Rb6 b2 51.Bd6+ Kd4 52.Ba3 Rc1+ 53.Kf2 b1=Q 
54.Bxc1 Qxc1 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Debarnot, Roberto Luis"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[ECO "E69"]
[EventDate "1972.05.20"]
[PlyCount "59"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.d4 d6 5.Bg2 Nbd7 6.Nf3 g6 7.O-O Bg7 8.e4 O-O 
9.h3 Qb6 10.c5 dxc5 11.dxe5 Ne8 12.Qc2 Nxe5 13.Nxe5 Bxe5 14.Na4 Qd8 15.
Nxc5 Nc7 16.Bh6 Re8 17.Rad1 Qe7 18.f4 Bh8 19.e5 Bf5 20.Qf2 Ne6 21.b4 Rad8 
22.g4 Nxc5 23.bxc5 Rxd1 24.Rxd1 Be6 25.Rd6 f5 26.gxf5 Bxf5 27.Bf1 Qf7 28.
Qd4 Be6 29.Rxe6 Rxe6 30.Bc4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Godoy Bugueno, David"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2340"]
[ECO "B07"]
[EventDate "1972.05.20"]
[PlyCount "136"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f3 Bg7 5.Be3 O-O 6.Bc4 c6 7.Bb3 Nbd7 8.a4 Re8 
9.Nge2 Nf8 10.Qd2 Be6 11.d5 cxd5 12.exd5 Bc8 13.O-O N8d7 14.a5 Nc5 15.Bc4 
Nfd7 16.b4 Ne5 17.Bb5 Ncd7 18.f4 Ng4 19.Bd4 a6 20.Bxg7 Kxg7 21.Qd4+ Ngf6 
22.Ba4 Rg8 23.Ng3 b5 24.Bb3 Qc7 25.Rae1 Re8 26.Kh1 Qa7 27.Qd2 Bb7 28.f5 
Ne5 29.Nce4 Nxe4 30.Rxe4 f6 31.Ne2 Bc8 32.Nd4 Bd7 33.Rh4 g5 34.Rh3 Rh8 35.
c3 h5 36.Re3 h4 37.Rfe1 Rac8 38.Nf3 Bxf5 39.Nxe5 dxe5 40.Rxe5 fxe5 41.
Qxg5+ Bg6 42.Bc2 Rh6 43.Qxe5+ Kh7 44.Rf1 e6 45.Qxe6 Bxc2 46.Rf7+ Qxf7 47.
Qxf7+ Kh8 48.Qe7 Rh7 49.Qf6+ Rg7 50.Qxh4+ Kg8 51.Qf6 Re8 52.Kg1 Rg6 53.Qd4
Be4 54.g3 Rd6 55.c4 bxc4 56.Qxc4 Bxd5 57.Qg4+ Kf8 58.Qf4+ Ke7 59.g4 Kd7 
60.Kf2 Re4 61.Qf5+ Kc7 62.Kg3 Rxb4 63.Qh7+ Kc6 64.h4 Be6 65.g5 Rdd4 66.
Qc2+ Rdc4 67.Qg2+ Bd5 68.Qe2 Rb3+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Panno, Oscar"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[ECO "E98"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Ne1 Nd7 10.Nd3 f5 11.exf5 Nxf5 12.f3 c5 13.Nf2 Nf6 14.Bd3 Nd4 15.Nfe4 a6
16.Bg5 Qc7 17.f4 Nxe4 18.Bxe4 h6 19.Bh4 Nf5 20.Bxf5 Bxf5 21.g4 Bd7 22.Bg3 
exf4 23.Rxf4 Rxf4 24.Bxf4 Rf8 25.Bg3 Qb6 26.Qe2 Bxg4 27.Qxg4 Qxb2 28.Rf1 
Bd4+ 29.Bf2 Bxf2+ 30.Kh1 Qxc3 31.Qxg6+ Qg7 32.Qe6+ Kh8 33.Qxd6 Qf6 34.
Qxf6+ Rxf6 35.Rb1 b6 36.Kg2 Bd4 37.Re1 Kg7 38.Re7+ Kg6 39.Ra7 a5 40.d6 
Rxd6 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Quinones, Oscar Carillo"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2420"]
[ECO "B85"]
[EventDate "1972.05.20"]
[PlyCount "83"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.Be3 
Qc7 9.f4 a6 10.Be2 b5 11.a3 Bb7 12.Bf3 Be7 13.O-O O-O 14.Qe1 Rac8 15.Qg3 
Kh8 16.Rae1 Ba8 17.Kh1 b4 18.axb4 Nxb4 19.e5 dxe5 20.Bxa8 Rxa8 21.fxe5 
Nfd5 22.Bd4 Nxc3 23.Bxc3 Nd5 24.Rf3 Qc4 25.Qf2 Qh4 26.g3 Qh5 27.Bd4 Rac8 
28.Rf1 f5 29.exf6 Nxf6 30.Kg1 h6 31.Qe2 Qd5 32.Re3 Nd7 33.Rd1 Qf5 34.Bxg7+
Kxg7 35.Rxd7 Rf7 36.Nd4 Qh3 37.Nxe6+ Kg8 38.c3 Re8 39.Qd3 Qg4 40.Rd4 Qf5 
41.Qxf5 Rxf5 42.Nc7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Quinteros, Miguel Angel"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "E62"]
[EventDate "1972.05.20"]
[PlyCount "67"]

1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 e5 8.d5 Ne7 
9.c5 Ne8 10.cxd6 cxd6 11.e4 h6 12.a4 f5 13.exf5 gxf5 14.Nd2 Ng6 15.Nc4 Rf7
16.a5 Bf8 17.Be3 f4 18.Bd2 Nf6 19.Ne4 Bf5 20.Re1 Ng4 21.Bb4 fxg3 22.hxg3 
Bxe4 23.Bxe4 Qg5 24.Bf3 Nxf2 25.Kxf2 Nh4 26.gxh4 Qxh4+ 27.Ke3 Qxc4 28.Bh5 
Qf4+ 29.Kd3 Qd4+ 30.Kc2 Rf2+ 31.Re2 Rxe2+ 32.Qxe2 Qxb4 33.Rg1+ Bg7 34.Kb1 
1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Rubinetti, Jorge Alberto"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2425"]
[ECO "C97"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 Na5 
9.Bc2 c5 10.d4 Qc7 11.h3 O-O 12.Nbd2 Bb7 13.d5 Rab8 14.Nf1 Bc8 15.Ne3 Bd7 
16.Nh2 Rfc8 17.Qf3 Qd8 18.Nf5 Bxf5 19.Qxf5 b4 20.cxb4 Rxb4 21.Nf1 Rcb8 22.
b3 R4b7 23.Ne3 g6 24.Qf3 Nh5 25.Bd3 Ra7 26.Bd2 Nf4 27.Bf1 Nh5 28.g3 Bg5 
29.h4 Bh6 30.Rec1 Nb7 31.Rc4 a5 32.Ra4 Qc7 33.g4 Nf4 34.g5 Bg7 35.Ng4 Nh5 
36.Rc1 Raa8 37.Bh3 Qd8 38.Kh2 Qe7 39.Rg1 Nd8 40.Kh1 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Silva Nazzari, Roberto"]
[Black "Paiva, Jose de Pinto"]
[Result "0-1"]
[WhiteElo "2250"]
[ECO "C70"]
[EventDate "1972.05.20"]
[PlyCount "46"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bc5 5.O-O b5 6.Bb3 d6 7.c3 Bb6 8.h3 g5 9.
d4 g4 10.Ng5 Nh6 11.Bd5 Bd7 12.hxg4 Rg8 13.Nf3 Nxg4 14.Na3 Qf6 15.Nc2 Qg6 
16.Qe2 Qh5 17.Re1 exd4 18.cxd4 Nxd4 19.Ncxd4 Bxd4 20.Be3 Bxe3 21.fxe3 c6 
22.Bb3 Rg6 23.g3 Ne5 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Szmetan, Jorge"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[ECO "B89"]
[EventDate "1972.05.20"]
[PlyCount "47"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
a6 9.Qe2 Na5 10.O-O-O Qc7 11.g4 b5 12.g5 Nxb3+ 13.axb3 Nd7 14.Nf5 exf5 15.
Nd5 Qd8 16.exf5 O-O 17.f6 gxf6 18.Bb6 Nxb6 19.Nxe7+ Kg7 20.Qh5 Kh8 21.Qh6 
Rg8 22.gxf6 Nd7 23.Rhg1 Bb7 24.Qg7+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "11"]
[White "Vasquez De la Paz, Julio"]
[Black "Camara, Helder"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2390"]
[ECO "B06"]
[EventDate "1972.05.20"]
[PlyCount "88"]

1.e4 g6 2.d4 Bg7 3.c3 c6 4.Nf3 d5 5.e5 Bg4 6.Be2 e6 7.Bf4 h5 8.Nbd2 Nd7 9.
O-O Bh6 10.Be3 Ne7 11.Bxh6 Rxh6 12.Ne1 Bxe2 13.Qxe2 Nf5 14.Nd3 Kf8 15.Rfe1
Kg7 16.Nf1 Kh7 17.Ne3 Qe7 18.Rad1 Rg8 19.Qf3 Nh4 20.Qe2 Nf8 21.c4 dxc4 22.
Nxc4 Nf5 23.Nc5 Kg7 24.Ne4 Nd7 25.Ned6 Nb6 26.Na5 Rb8 27.Nac4 Nd5 28.Nxf5+
gxf5 29.Rd3 h4 30.Rf3 Rg8 31.Ne3 Qd8 32.Nxd5 Qxd5 33.Rb3 h3 34.Qf3 Qxd4 
35.Rxb7 hxg2 36.Qe3 Qd8 37.Rxf7+ Kxf7 38.Qxh6 Rh8 39.Qe3 Qh4 40.Qg3 Qh5 
41.f3 Rd8 42.Qf2 Rh8 43.Qg3 Rd8 44.Qf2 Rh8 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Camara, Helder"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "E11"]
[EventDate "1972.05.20"]
[PlyCount "65"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 a5 5.Nc3 d6 6.Qc2 Nbd7 7.e3 e5 8.a3 Bxc3
9.Bxc3 Qe7 10.Be2 a4 11.O-O O-O 12.Nd2 Re8 13.Rae1 Nf8 14.Bf3 Ng6 15.dxe5 
dxe5 16.Ne4 Bf5 17.Nxf6+ Qxf6 18.Be4 Bxe4 19.Qxe4 Qb6 20.Rd1 Rad8 21.h4 f6
22.Bb4 Nf8 23.Rd3 Rxd3 24.Qxd3 c5 25.Bc3 Rd8 26.Qe4 Rd7 27.h5 h6 28.Qc2 
Qc6 29.Rd1 Rxd1+ 30.Qxd1 Qd7 31.Qf3 Ne6 32.Qg4 Nf8 33.Qf3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Carvajal Aliaga, Juan"]
[Black "Szmetan, Jorge"]
[Result "1-0"]
[ECO "E81"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.f3 O-O 7.Be3 e6 8.dxe6 Bxe6 
9.Qd2 Nc6 10.O-O-O Qa5 11.Kb1 a6 12.Nd5 Qd8 13.Bh6 Bxd5 14.cxd5 Nd4 15.h4 
Qe7 16.Bxg7 Kxg7 17.Ne2 Nxe2 18.Bxe2 h6 19.g4 Nd7 20.Bd3 b5 21.f4 f6 22.
Qh2 Rh8 23.Ka1 g5 24.e5 fxe5 25.fxg5 hxg5 26.h5 Kh6 27.Qg2 c4 28.Bf5 Nc5 
29.Rhf1 Rhf8 30.Rf2 Rf6 31.Rdf1 Raf8 32.Re2 Rb8 33.Ref2 Qg7 34.Rf3 Rff8 
35.R1f2 Na4 36.Bc2 e4 37.Bxe4 c3 38.Qg3 cxb2+ 39.Kb1 Rbc8 40.Qxd6+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Chemin, Vitorio"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[ECO "A48"]
[EventDate "1972.05.20"]
[PlyCount "95"]

1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d6 6.Nbd2 c6 7.c4 Nbd7 8.Bd3 Re8
9.O-O e5 10.Qc2 Qe7 11.dxe5 dxe5 12.e4 Nh5 13.Rfe1 Nf4 14.Bf1 g5 15.g3 Ng6
16.h3 h5 17.Bg2 g4 18.hxg4 hxg4 19.Nh2 Ndf8 20.Ndf1 Ne6 21.Ne3 Nd4 22.Qc1 
Bh6 23.Qd1 Qg5 24.Nexg4 Bg7 25.Bxd4 exd4 26.f4 Qc5 27.Qd3 a5 28.e5 a4 29.
Nf2 Rd8 30.Ne4 Qb4 31.Nd6 axb3 32.Qxb3 Qc5 33.Ne4 Qa3 34.Qxa3 Rxa3 35.Nd6 
Rxg3 36.Kf2 Ra3 37.Re4 c5 38.Nf3 Bf8 39.Nxc8 f5 40.exf6 Rxc8 41.Bh3 Rc6 
42.Be6+ Rxe6 43.Rxe6 Nxf4 44.Rg1+ Kf7 45.Ng5+ Kg6 46.Nh3+ Kf5 47.Nxf4 Kxf4
48.Rg8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Godoy Bugueno, David"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[BlackElo "2465"]
[ECO "B93"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 Nbd7 8.O-O 
b5 9.Qe2 Bb7 10.Nf3 e5 11.Kh1 g6 12.fxe5 dxe5 13.a4 b4 14.Nd5 Nxd5 15.exd5
Bg7 16.c3 bxc3 17.bxc3 Bxd5 18.Ba3 Bf8 19.Bxf8 Kxf8 20.Bxa6 Rxa6 21.Qxa6 
Bc4 22.Qa8+ Kg7 23.Qe4 Bxf1 24.Rxf1 Re8 25.h3 Qxc3 26.Qb1 e4 27.Rc1 Qa5 
28.Qa1+ Kg8 29.Re1 Nc5 30.Qd4 Ra8 31.Rxe4 Nxe4 32.Qxe4 Qxa4 33.Qe3 Re8 34.
Qc3 Qf4 35.Nh2 Qe5 36.Qxe5 Rxe5 37.Ng4 Re1+ 38.Kh2 h5 39.Nf2 h4 40.Nd3 Rf1
0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Mecking, Henrique"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2420"]
[ECO "C75"]
[EventDate "1972.05.20"]
[PlyCount "57"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bd7 6.c3 Nge7 7.d4 Ng6 8.Nbd2 
Be7 9.Re1 h6 10.Nf1 Bg5 11.Be3 Qf6 12.d5 Nb8 13.Bxd7+ Nxd7 14.Ng3 Nh4 15.
Nxh4 Bxh4 16.Qg4 g6 17.f4 exf4 18.Qxf4 Qxf4 19.Bxf4 Bg5 20.Be3 Bxe3+ 21.
Rxe3 O-O 22.Rae1 Rae8 23.Nf1 Re7 24.Nd2 Rfe8 25.Kf2 Kg7 26.h3 Ne5 27.Nf3 
Nd7 28.Nd2 Ne5 29.Nf3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Paiva, Jose de Pinto"]
[Black "Quinones, Oscar Carillo"]
[Result "1-0"]
[BlackElo "2290"]
[ECO "C75"]
[EventDate "1972.05.20"]
[PlyCount "43"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7 7.Bb3 h6 8.Nh4 Nc8 
9.g3 g6 10.O-O Bh3 11.Ng2 Bg7 12.Be3 O-O 13.f4 exd4 14.cxd4 Na5 15.f5 Kh7 
16.Bxf7 gxf5 17.Qh5 Bg4 18.Qg6+ Kh8 19.exf5 Qf6 20.Qxg4 Rxf7 21.Nc3 Ne7 
22.Ne4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Silva Nazzari, Roberto"]
[Black "Panno, Oscar"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2570"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.O-O Be7
9.a4 b4 10.Na2 Qb6 11.c3 bxc3 12.Nxc3 O-O 13.Be3 Qb7 14.f3 Bd7 15.a5 Nc6 
16.Nxc6 Bxc6 17.Rf2 Rfc8 18.Rd2 Nd7 19.Na4 Bxa4 20.Bxa4 Nc5 21.Kh1 h6 22.
Bf4 Qb4 23.h3 d5 24.Rd4 Qxb2 25.exd5 Bf6 26.Be3 exd5 27.Rxd5 Qxa1 28.Qxa1 
Bxa1 29.Bxc5 Rd8 30.Bd7 Rac8 31.Bb6 Rc1+ 32.Kh2 Be5+ 33.g3 Bc7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Silva Sanchez, Carlos"]
[Black "Debarnot, Roberto Luis"]
[Result "1/2-1/2"]
[ECO "C00"]
[EventDate "1972.05.20"]
[PlyCount "120"]

1.e4 e6 2.Qe2 c5 3.Nf3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.d3 d6 8.c3 O-O 
9.Nbd2 b5 10.d4 cxd4 11.cxd4 Nxd4 12.Nxd4 Bxd4 13.e5 Rb8 14.exd6 Nd5 15.
Rd1 Bg7 16.Ne4 h6 17.d7 Bxd7 18.Nc5 Bc8 19.Be3 Qe7 20.Bxd5 exd5 21.Rxd5 
Bh3 22.Rad1 Rfd8 23.Rxd8+ Rxd8 24.Rxd8+ Qxd8 25.Nd3 Bf5 26.Nc5 Qd5 27.g4 
Bc8 28.Qd3 Qxd3 29.Nxd3 Bxg4 30.Bxa7 Bf5 31.Nb4 Bxb2 32.Bc5 Ba3 33.Nd3 
Bxc5 34.Nxc5 Kf8 35.a4 b4 36.a5 Bc8 37.Kf1 Ke7 38.a6 Bxa6+ 39.Nxa6 b3 40.
Nb4 b2 41.Nd5+ Kd6 42.Nc3 Ke5 43.Ke2 Kf4 44.f3 h5 45.Kf2 g5 46.h3 f5 47.
Nb1 Ke5 48.Ke3 Kd5 49.Kd3 h4 50.Ke3 Kc4 51.Nd2+ Kc3 52.Nb1+ Kc2 53.Na3+ 
Kc1 54.f4 gxf4+ 55.Kf2 Kd2 56.Nc4+ Kc3 57.Nxb2 Kxb2 58.Kf3 Kc3 59.Kxf4 Kd4
60.Kxf5 Ke3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "89"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.Be3 Be7
9.Qe2 O-O 10.f3 Bb7 11.O-O-O Nbd7 12.g4 Nc5 13.g5 Nfd7 14.h4 b4 15.Na4 Rc8
16.Kb1 Nxa4 17.Bxa4 Nc5 18.Bb3 d5 19.exd5 Nxb3 20.Nxb3 Bxd5 21.Bd4 Qc7 22.
Rh3 Qf4 23.Be5 Qf5 24.Rg3 Bxb3 25.axb3 Rc5 26.f4 Rfc8 27.Rd2 a5 28.Rgd3 a4
29.bxa4 b3 30.Rxb3 Bd8 31.Qd3 Qxd3 32.Rbxd3 Ba5 33.b4 f6 34.bxc5 Bxd2 35.
gxf6 gxf6 36.Bxf6 Rb8+ 37.Ka2 Bxf4 38.Rd8+ Kf7 39.Rxb8 Bxb8 40.Bg5 Kg6 41.
c6 Bc7 42.Kb3 Kf5 43.Kb4 Ke5 44.a5 Kd5 45.Kb5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "12"]
[White "Vasquez De la Paz, Julio"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2340"]
[ECO "D59"]
[EventDate "1972.05.20"]
[PlyCount "97"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5
9.Bxe7 Qxe7 10.Nxd5 exd5 11.Rc1 Be6 12.Bd3 c5 13.dxc5 bxc5 14.O-O Nd7 15.
Qa4 Rfc8 16.Rfd1 a5 17.Bb5 Nb6 18.Qa3 Qf8 19.Ne5 a4 20.Be2 c4 21.Qxf8+ 
Kxf8 22.a3 Ra5 23.Rd2 Rb5 24.Nf3 Nd7 25.Nd4 Rb6 26.f3 Nc5 27.e4 dxe4 28.
Nxe6+ Nxe6 29.fxe4 c3 30.bxc3 Rb3 31.c4 Rxa3 32.Bg4 Ke7 33.Bxe6 Kxe6 34.c5
Rb3 35.c6 Rc7 36.Rd4 a3 37.Ra4 Ke5 38.g3 g5 39.Rc5+ Kd6 40.Rca5 Rxc6 41.
Rxa3 Rb1+ 42.Kg2 Rc2+ 43.Kh3 Rbb2 44.Kg4 Rxh2 45.Rd5+ Ke7 46.Ra7+ Kf6 47.
Rf5+ Kg6 48.Ra6+ Kg7 49.Ra7 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Alborta Tito, Eduardo"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[BlackElo "2540"]
[ECO "B92"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 Be6 10.Bf3 Nbd7 11.Qd2 Rc8 12.Be2 Qc7 13.f3 b5 14.Rac1 Nb6 15.
Bd3 Nc4 16.Bxc4 bxc4 17.Na1 Rfd8 18.Qf2 Qb7 19.Rb1 d5 20.exd5 Nxd5 21.Nxd5
Rxd5 22.Kh1 Ra5 23.a3 Rb5 24.b4 cxb3 25.cxb3 Bxa3 26.Qa2 Bf8 27.Qb2 Rb8 
28.Qc3 f6 29.f4 Bxb3 30.fxe5 Bf7 31.Rbc1 Rxe5 32.Bd4 Re2 33.Rg1 Bd5 34.Qh3
Rbe8 35.Nc2 R8e4 36.Ba1 Rc4 37.Ne3 Rxc1 38.Rxc1 Bf7 39.Ng4 Qe4 40.Nf2 Re1+
0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Debarnot, Roberto Luis"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[ECO "A36"]
[EventDate "1972.05.20"]
[PlyCount "84"]

1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.a3 e6 6.Rb1 a5 7.Nh3 Nge7 8.Nf4 d6 
9.h4 h5 10.O-O b6 11.e3 Bb7 12.d4 cxd4 13.Nb5 Ba6 14.exd4 Bxb5 15.cxb5 
Nxd4 16.Be3 Nef5 17.Bxd4 Nxd4 18.Bxa8 Qxa8 19.f3 O-O 20.Qd3 Rc8 21.Kg2 Rc5
22.a4 Qc8 23.Nh3 Rc2+ 24.Rf2 Rc4 25.Qa3 Bf8 26.Rd1 d5 27.Qd3 Nf5 28.Kh2 
Bd6 29.f4 Rd4 30.Rc2 Qd8 31.Qxd4 Nxd4 32.Rxd4 Bc5 33.Rd3 Qf6 34.Ng5 Qf5 
35.Rcd2 f6 36.Nf3 Qe4 37.Kg2 Qxa4 38.Nd4 Kf7 39.Kh2 Bxd4 40.Rxd4 Qxb5 41.
R4d3 Ke7 42.Kh3 Kd6 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Gamarra Caceres, Carlos"]
[Black "Chemin, Vitorio"]
[Result "0-1"]
[ECO "B09"]
[EventDate "1972.05.20"]
[PlyCount "98"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Ne8 7.h4 h5 8.Bc4 Bg4 9.
Be3 c6 10.Qd2 d5 11.Bd3 c5 12.dxc5 Nc6 13.Nd4 Nxd4 14.Bxd4 Nc7 15.O-O Ne6 
16.Qe3 Nxd4 17.Qxd4 e6 18.g3 Kh7 19.Nb5 b6 20.cxb6 axb6 21.c3 f6 22.a3 Bh3
23.Rf2 fxe5 24.fxe5 Rxf2 25.Qxf2 Qf8 26.Qe3 Bh6 27.Qf2 Qxf2+ 28.Kxf2 Rf8+ 
29.Kg1 Rf3 30.Kh2 Bg4 31.Bf1 Rf2+ 32.Bg2 Bf3 33.Rg1 Be3 34.Kh1 Rxb2 35.
Bxf3 Bxg1 36.Nc7 Bf2 37.Nxe6 Bxg3 38.Nf8+ Kg7 39.Nd7 Bxh4 40.Bxd5 Be7 41.
c4 Bxa3 42.e6 Bd6 43.Kg1 h4 44.Ne5 Bxe5 45.e7 Bd4+ 46.Kf1 Rb1+ 47.Ke2 Bc3 
48.Be4 Re1+ 49.Kd3 Rxe4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Juarez, Carlos Eleodoro"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2340"]
[BlackElo "2250"]
[ECO "B35"]
[EventDate "1972.05.20"]
[PlyCount "75"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O 
O-O 9.Bb3 d6 10.h3 Bd7 11.f4 Rac8 12.a3 Qh5 13.Qd3 Na5 14.Ba2 b5 15.Bf2 
Nc4 16.Rab1 Rfd8 17.Rfd1 a6 18.a4 e5 19.Nde2 exf4 20.Bxc4 Rxc4 21.b3 Rcc8 
22.Nxf4 Qe5 23.Nfd5 Nxd5 24.Nxd5 bxa4 25.Nb6 Rb8 26.bxa4 Bc6 27.Rb4 Bb7 
28.Rdb1 Bc6 29.Bd4 Qe8 30.Bxg7 Kxg7 31.Qc3+ Kg8 32.Qd3 Qe5 33.Rc4 Ba8 34.
Rcb4 Bc6 35.Kh1 Re8 36.Qf1 Qe6 37.Re1 Kg7 38.Qxa6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Panno, Oscar"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2340"]
[ECO "E59"]
[EventDate "1972.05.20"]
[PlyCount "129"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bd3 e5 12.Qc2 Re8 13.dxe5 Nxe5 14.Nxe5 Qxe5 15.
f3 Bd7 16.a4 Bc6 17.Re1 Rad8 18.e4 Nd5 19.Ra3 Rd7 20.Bf1 Nf4 21.Be3 Red8 
22.Raa1 Ne6 23.Qb3 h5 24.a5 h4 25.Ra2 Nf4 26.Qc4 Nd3 27.Bxd3 Rxd3 28.Qxc5 
Qxc5 29.Bxc5 Rxc3 30.Be7 Rdd3 31.Bxh4 Ra3 32.Rea1 Rd1+ 33.Rxd1 Rxa2 34.Bd8
Kf8 35.h4 Ke8 36.Bc7 Bb5 37.Rb1 Ba6 38.Kh2 f6 39.Kg3 Kd7 40.Rc1 Bb5 41.Bb8
Bc6 42.Rd1+ Ke6 43.Bc7 Rc2 44.Bd6 Rb2 45.Bf8 Kf7 46.Bc5 Rb5 47.Bxa7 Rxa5 
48.Bd4 Ra2 49.e5 fxe5 50.Bxe5 Re2 51.Bf4 b5 52.h5 Be8 53.Rd8 Rc2 54.Rb8 
Rc3 55.Be5 Rd3 56.Rb7+ Bd7 57.Kf4 Kf8 58.Rb6 Be8 59.Rb8 Rd7 60.g4 Rf7+ 61.
Kg5 Rxf3 62.Bxg7+ Kf7 63.h6 Rh3 64.Rxe8 Kxe8 65.Kg6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Quinones, Oscar Carillo"]
[Black "Camara, Helder"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2390"]
[ECO "B80"]
[EventDate "1972.05.20"]
[PlyCount "61"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nf6 7.Bg2 Nc6 8.O-O 
Be7 9.b3 O-O 10.Bb2 d6 11.Nce2 Bd7 12.c4 Rfd8 13.Rc1 Qa5 14.a3 Qh5 15.Nc3 
Nxd4 16.Qxd4 Bc6 17.Rfe1 Rac8 18.Nd5 Bxd5 19.exd5 e5 20.Qd1 Qh6 21.f4 Nd7 
22.fxe5 Nxe5 23.Bxe5 dxe5 24.b4 Bg5 25.Rc2 Be3+ 26.Kh1 b6 27.Qd3 Bd4 28.
Rf1 Qd6 29.Qf5 Rc7 30.Be4 g6 31.Qf6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Quinteros, Miguel Angel"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "E73"]
[EventDate "1972.05.20"]
[PlyCount "65"]

1.c4 Nf6 2.Nc3 d6 3.d4 g6 4.e4 Bg7 5.Be2 O-O 6.g4 c5 7.d5 a6 8.a4 Re8 9.g5
Nfd7 10.h4 Nf8 11.h5 e6 12.hxg6 fxg6 13.Qd3 exd5 14.cxd5 Nbd7 15.Qg3 Rb8 
16.Rh4 Qc7 17.Nf3 c4 18.a5 b5 19.axb6 Rxb6 20.Kf1 Nc5 21.Nd2 Nb3 22.Nxb3 
Rxb3 23.Ra4 Bd7 24.Rxc4 Qa5 25.Qf4 Bxc3 26.Rxc3 Rxc3 27.bxc3 Qxc3 28.Be3 
Rb8 29.Kg2 Qe1 30.Bf3 Rb1 31.Kg3 Qb4 32.Qf6 Qb7 33.Bd4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Rodriguez Vargas, Orestes"]
[Black "Paiva, Jose de Pinto"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[ECO "A00"]
[EventDate "1972.05.20"]
[PlyCount "0"]

1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Rubinetti, Jorge Alberto"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2425"]
[ECO "E81"]
[EventDate "1972.05.20"]
[PlyCount "106"]

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 e5 5.Nge2 Nf6 6.f3 O-O 7.Bg5 h6 8.Be3 a6 9.
Qd2 Kh7 10.O-O-O Nc6 11.d5 Ne7 12.Kb1 Nd7 13.h4 h5 14.Nc1 f5 15.exf5 gxf5 
16.Bg5 Nf6 17.Be2 Qe8 18.Rdg1 Rb8 19.Nd3 b5 20.Nf2 bxc4 21.g4 e4 22.gxf5 
Bxf5 23.Ka1 Nexd5 24.Bxf6 Nxf6 25.fxe4 Bh6 26.Qd4 Bc8 27.Bxc4 Qe5 28.Qxe5 
dxe5 29.Nd3 Ng4 30.Rf1 Bf4 31.Nd5 Be6 32.Bxa6 Bxd5 33.exd5 Ne3 34.Rc1 Nxd5
35.Rc5 Rfd8 36.Bc4 e4 37.Nxf4 Nxf4 38.Rxc7+ Kh8 39.b3 e3 40.Re7 Re8 41.
Rxe8+ Rxe8 42.Kb1 e2 43.Re1 Kg7 44.a4 Kf6 45.a5 Kf5 46.a6 Kg4 47.b4 Kf3 
48.b5 Kf2 49.Rh1 e1=Q+ 50.Rxe1 Kxe1 51.a7 Ne2 52.Bxe2 Kxe2 53.b6 Kd2 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "13"]
[White "Szmetan, Jorge"]
[Black "Vasquez De la Paz, Julio"]
[Result "1-0"]
[BlackElo "2270"]
[ECO "B82"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4 Nc6 7.Be3 Bd7 8.Bc4 
Nxd4 9.Qxd4 Bc6 10.O-O-O Qa5 11.f5 e5 12.Qd3 h6 13.Kb1 Rc8 14.h3 a6 15.g4 
b5 16.Bb3 b4 17.Nd5 Bxd5 18.Bxd5 Nxd5 19.exd5 Be7 20.h4 Bd8 21.f6 g6 22.h5
g5 23.Qf5 Qc7 24.Bxg5 hxg5 25.h6 Qc5 26.h7 Bb6 27.c3 bxc3 28.Rc1 c2+ 29.
Ka1 Kd8 30.Qxg5 Qxd5 31.Rh2 Bd4 32.Rhxc2 Rxc2 33.Rxc2 Qh1+ 34.Rc1 Qxh7 35.
Qd2 Bxb2+ 36.Qxb2 Qe4 37.Qb8+ Kd7 38.Qc7+ Ke6 39.Qe7+ Kd5 40.Qxf7+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Alborta Tito, Eduardo"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[ECO "C42"]
[EventDate "1972.05.20"]
[PlyCount "68"]

1.e4 Nf6 2.Nc3 e5 3.Bc4 Nxe4 4.Nf3 Nf6 5.Nxe5 d5 6.Bb3 Bd6 7.d4 O-O 8.O-O 
c6 9.Bg5 Nbd7 10.Nxd7 Bxd7 11.Qf3 Be7 12.Rfe1 a5 13.a4 Re8 14.Ne2 h6 15.
Bxf6 Bxf6 16.c3 g6 17.Bc2 Bg7 18.Nf4 Qg5 19.Qg3 Qf6 20.Nd3 Bf5 21.Qc7 Be4 
22.f3 Rec8 23.Qxb7 Rcb8 24.Qc7 Bxd3 25.Bxd3 Rxb2 26.Re7 Rd2 27.Bf1 Rxd4 
28.Qb7 Rf8 29.Rc7 Rh4 30.g3 Qxc3 31.gxh4 Qe3+ 32.Kg2 Bxa1 33.Qxc6 Bd4 34.
Qb5 Qf2+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1-0"]
[BlackElo "2340"]
[ECO "B48"]
[EventDate "1972.05.20"]
[PlyCount "85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.Nc3 Qc7 7.O-O Nc6 8.Be3 
Ne5 9.h3 Bc5 10.Kh1 O-O 11.f4 Nxd3 12.cxd3 d6 13.Rc1 Qb8 14.Qe2 Bd7 15.Nb3
Bxe3 16.Qxe3 b5 17.e5 Ne8 18.d4 Qb6 19.Ne4 Bc6 20.f5 exf5 21.Ng3 dxe5 22.
Nxf5 Bd7 23.dxe5 Qxe3 24.Nxe3 Ra7 25.Nc5 Bc6 26.Rfd1 g6 27.Nd5 Bxd5 28.
Rxd5 Ng7 29.Nd7 Rfa8 30.Nf6+ Kh8 31.Rdc5 Ne6 32.Rc8+ Kg7 33.h4 a5 34.g4 b4
35.Ne8+ Kh8 36.g5 h6 37.Kg2 hxg5 38.hxg5 Nxg5 39.Nf6+ Kg7 40.Ne8+ Kf8 41.
Nf6+ Ke7 42.Nd5+ Ke6 43.Rxa8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Camara, Helder"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "D40"]
[EventDate "1972.05.20"]
[PlyCount "69"]

1.d4 Nf6 2.Nf3 e6 3.c4 c5 4.e3 d5 5.Nc3 Nc6 6.Be2 Be7 7.O-O O-O 8.a3 Ne4 
9.Qc2 Nxc3 10.bxc3 dxc4 11.Bxc4 Qc7 12.Bd3 h6 13.e4 Na5 14.Qe2 Nb3 15.Rb1 
Nxc1 16.Rfxc1 Rd8 17.e5 Rb8 18.Qe4 g6 19.h4 Bd7 20.Qg4 h5 21.Qf4 c4 22.Bc2
Bc6 23.Ng5 Bxg5 24.Qxg5 Rd7 25.Re1 Qd8 26.Qf4 b5 27.Re3 a5 28.Rg3 Qf8 29.
Ra1 Kh8 30.Rg5 Bd5 31.f3 Qh6 32.g4 hxg4 33.fxg4 Rg8 34.Rh5 Qxh5 35.Qf6+ 
1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Chemin, Vitorio"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[BlackElo "2250"]
[ECO "A00"]
[EventDate "1972.05.20"]
[PlyCount "59"]

1.b4 Nf6 2.e3 g6 3.Bb2 Bg7 4.h4 d6 5.h5 Nxh5 6.Bxg7 Nxg7 7.Nf3 e5 8.Nc3 c6
9.d4 Qe7 10.d5 Nd7 11.dxc6 bxc6 12.b5 Bb7 13.bxc6 Bxc6 14.Nb5 Bxb5 15.Bxb5
Rd8 16.Qd2 O-O 17.e4 Ne6 18.Qh6 f6 19.Bc4 Rf7 20.Nh4 Rg7 21.Nxg6 Qf7 22.
Qh3 Ndc5 23.Nh4 Kh8 24.Nf5 Rg6 25.Rd1 Qb7 26.Nxd6 Rxd6 27.Rxd6 Nxe4 28.Rb6
axb6 29.Qxe6 Nd6 30.Qxd6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Gamarra Caceres, Carlos"]
[Black "Panno, Oscar"]
[Result "0-1"]
[BlackElo "2570"]
[ECO "B25"]
[EventDate "1972.05.20"]
[PlyCount "62"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.f4 Nge7 7.Nf3 d6 8.O-O O-O 
9.Bd2 Qd7 10.Rb1 b6 11.Ne2 Bb7 12.g4 f5 13.h3 Rae8 14.Ng3 Kh8 15.Qe1 a5 
16.c3 Ba6 17.c4 Nb4 18.Bxb4 axb4 19.e5 Nc6 20.gxf5 exf5 21.Ne2 dxe5 22.Ng5
Nd4 23.Nxd4 Qxd4+ 24.Kh1 exf4 25.Qh4 h6 26.Rbe1 Qf6 27.Rxe8 Rxe8 28.Re1 
Rxe1+ 29.Qxe1 hxg5 30.Qe8+ Kh7 31.Qa8 g4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Mecking, Henrique"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2540"]
[ECO "B19"]
[EventDate "1972.05.20"]
[PlyCount "87"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 e6 7.h4 h6 8.h5 Bh7 
9.Bd3 Bxd3 10.Qxd3 Nd7 11.Bf4 Ngf6 12.O-O-O Nd5 13.Bd2 Qc7 14.c4 Nb4 15.
Qb3 a5 16.a3 a4 17.Qe3 Na6 18.Kb1 Be7 19.d5 Nac5 20.dxe6 fxe6 21.Bb4 b6 
22.Nd4 Qe5 23.Rhe1 Qxe3 24.Rxe3 O-O 25.Nxc6 Bg5 26.Re2 Rf4 27.Rd4 Raf8 28.
f3 e5 29.Rxf4 Rxf4 30.Bxc5 Rxc4 31.Bxb6 Rc1+ 32.Ka2 Rxc6 33.Ba5 Nf6 34.Bc3
Bf4 35.Bxe5 Bxg3 36.Bxg3 Nxh5 37.Be5 Re6 38.Re4 Kf7 39.g4 Nf6 40.Bxf6 Rxe4
41.fxe4 Kxf6 42.b3 axb3+ 43.Kxb3 Ke5 44.a4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Paiva, Jose de Pinto"]
[Black "Godoy Bugueno, David"]
[Result "1-0"]
[ECO "C92"]
[EventDate "1972.05.20"]
[PlyCount "83"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.Re1 d6 8.c3 O-O 
9.h3 Nd7 10.a4 Na5 11.Bc2 Bb7 12.d4 c5 13.Nbd2 Bf6 14.d5 c4 15.axb5 axb5 
16.Nf1 Nc5 17.Be3 Nab3 18.Rb1 Ra2 19.g4 g6 20.Ng3 Bg7 21.Kh2 Bc8 22.Rg1 f6
23.Nd2 Nxd2 24.Qxd2 Na4 25.Qc1 Rf7 26.f4 Qa5 27.Rg2 b4 28.cxb4 Qxb4 29.
Bxa4 exf4 30.Bxf4 Rxa4 31.b3 Ra8 32.bxc4 Qc5 33.Rb5 Qc7 34.c5 Bf8 35.Rc2 
Ba6 36.Rb3 Qd8 37.c6 f5 38.gxf5 Bc8 39.c7 Qd7 40.Bh6 Ra4 41.Bxf8 Rxf8 42.
Qg5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Quinones, Oscar Carillo"]
[Black "Debarnot, Roberto Luis"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[ECO "C04"]
[EventDate "1972.05.20"]
[PlyCount "98"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Bb5 a6 7.Bxc6 bxc6 8.O-O 
c5 9.c4 c6 10.cxd5 cxd5 11.dxc5 Nxc5 12.Nb3 Nxb3 13.Qxb3 Be7 14.Qa4+ Bd7 
15.Qg4 Kf8 16.Bg5 Bxg5 17.Nxg5 h6 18.Nf3 g6 19.Rac1 Kg7 20.Qf4 Bb5 21.Rfe1
Qe7 22.Rc3 Rhc8 23.Rec1 Bd7 24.h4 Rxc3 25.Rxc3 Rc8 26.Rxc8 Bxc8 27.g4 Kh7 
28.Kh2 a5 29.Kg3 Kg7 30.g5 hxg5 31.hxg5 Kf8 32.Qf6 Ke8 33.Qxe7+ Kxe7 34.
Nd4 Bd7 35.Kf4 Kd8 36.Nb3 a4 37.Nc5 Kc7 38.Ke3 Be8 39.Kd4 Kb6 40.a3 Bc6 
41.Nd3 Bb5 42.Nb4 Bc4 43.Nc2 Bb5 44.f4 Bc4 45.Ne3 Be2 46.Nc2 Bd1 47.Nb4 
Be2 48.Na2 Bb5 49.Nc3 Bc6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Rodriguez Vargas, Orestes"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[ECO "B96"]
[EventDate "1972.05.20"]
[PlyCount "53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qe2 
Qc7 9.O-O-O Be7 10.g4 h6 11.Bh4 g5 12.fxg5 Nh7 13.Nf5 exf5 14.Nd5 Qa5 15.
exf5 Ne5 16.Nxe7 Kxe7 17.Be1 Qxa2 18.Bc3 Rd8 19.b3 Nxg5 20.Rd5 a5 21.Rxe5+
Kf8 22.Re3 d5 23.Qb5 Ne4 24.Rxe4 dxe4 25.Qc5+ Kg8 26.Qe5 f6 27.Bc4+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "14"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2425"]
[ECO "C91"]
[EventDate "1972.05.20"]
[PlyCount "81"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.d4 Bg4 10.Be3 d5 11.exd5 exd4 12.dxc6 dxe3 13.Qxd8 Raxd8 14.fxe3 Ne4 15.
Nd4 Rfe8 16.Bc2 Bh4 17.g3 Bg5 18.Kg2 Nd6 19.h3 Bc8 20.Nd2 Bxe3 21.N2f3 Nc4
22.b3 Bxd4 23.Nxd4 Ne3+ 24.Kf3 Nxc2 25.Rxe8+ Rxe8 26.Nxc2 Bxh3 27.a4 Be6 
28.Nd4 bxa4 29.Rxa4 Bc8 30.b4 Kf8 31.b5 axb5 32.Ra7 h5 33.Rxc7 g5 34.Nxb5 
Bg4+ 35.Kf2 h4 36.gxh4 gxh4 37.Nd4 h3 38.Rb7 Bc8 39.Rb1 f6 40.Rd1 Bg4 41.
Nf3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Carvajal Aliaga, Juan"]
[Black "Paiva, Jose de Pinto"]
[Result "0-1"]
[ECO "E80"]
[EventDate "1972.05.20"]
[PlyCount "99"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nbd7 7.Qd2 c6 8.Bd3 a6 
9.a4 Qa5 10.Rb1 Qb4 11.Nge2 e5 12.O-O d5 13.exd5 cxd5 14.cxd5 Re8 15.Rfe1 
exd4 16.Bxd4 Ne5 17.Bxe5 Rxe5 18.Qf4 Qc5+ 19.Qd4 Qd6 20.Qf2 Nxd5 21.Be4 
Nb4 22.Rbd1 Qe7 23.f4 Rxe4 24.Nxe4 Nc2 25.N2c3 Nxe1 26.Rxe1 Be6 27.Ng5 Qb4
28.Nxe6 fxe6 29.Qf3 Qxb2 30.Ne4 Rf8 31.Ng5 Qd4+ 32.Kh1 Qxf4 33.Qxf4 Rxf4 
34.Nxe6 Rxa4 35.Rc1 Ra1 36.Rxa1 Bxa1 37.Nc5 b5 38.Nxa6 Bc3 39.Nc5 b4 40.
Nb3 Kf7 41.Kg1 Ke6 42.Kf1 Kd5 43.Ke2 Kc4 44.Na5+ Kb5 45.Nb3 Ka4 46.Nc5+ 
Ka3 47.Kd3 Be5 48.h4 b3 49.Nxb3 Kxb3 50.h5 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Debarnot, Roberto Luis"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[BlackElo "2420"]
[ECO "A66"]
[EventDate "1972.05.20"]
[PlyCount "99"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5 Nfd7 
9.Nb5 dxe5 10.Nd6+ Ke7 11.Nxc8+ Qxc8 12.d6+ Kf8 13.Nf3 Nc6 14.Bc4 Nb6 15.
Bb5 e4 16.Bxc6 exf3 17.Bxf3 Qe6+ 18.Qe2 Re8 19.Qxe6 Rxe6+ 20.Kf2 Rxd6 21.
Be3 Bd4 22.Rhe1 Nc4 23.Bxd4 Rxd4 24.b3 Nd6 25.Rad1 Rxd1 26.Bxd1 Kg7 27.Bf3
Rc8 28.Bd5 Kf8 29.g4 h6 30.Re3 b6 31.Rh3 Kg7 32.Rd3 Nb5 33.Re3 Rc7 34.a4 
Nd4 35.Bc4 Kf8 36.Rh3 Re7 37.Rxh6 Kg7 38.Rh4 Re4 39.g5 a6 40.Bd3 Re6 41.
Bxa6 Nxb3 42.f5 gxf5 43.Rh6 Re4 44.Bb5 Nd4 45.Rxb6 Rf4+ 46.Kg2 Rg4+ 47.Kf1
Rf4+ 48.Kg2 Rg4+ 49.Kf1 Rf4+ 50.Kg2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Godoy Bugueno, David"]
[Black "Camara, Helder"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "C40"]
[EventDate "1972.05.20"]
[PlyCount "126"]

1.e4 e5 2.Nf3 Qe7 3.Nc3 c6 4.Bc4 g6 5.d4 d6 6.Bg5 Nf6 7.h3 Bg7 8.O-O O-O 
9.Qd2 Nbd7 10.Rfe1 Nb6 11.Bd3 Qc7 12.Ne2 Re8 13.Ng3 c5 14.c3 Be6 15.d5 Bc8
16.c4 Qe7 17.Nh2 Qf8 18.Rac1 Kh8 19.Qe2 Ng8 20.Qc2 Bh6 21.Be3 Qg7 22.Rf1 
Bd7 23.Qd2 Nc8 24.Rb1 Rf8 25.Kh1 b6 26.f4 f6 27.f5 Bxe3 28.Qxe3 g5 29.Nh5 
Qe7 30.g4 Be8 31.Ng3 Rb8 32.Nf3 Nh6 33.Kg2 b5 34.cxb5 Bxb5 35.Bxb5 Rxb5 
36.b3 Rb7 37.Nh5 Qf7 38.Rh1 Ne7 39.Kg3 Rb4 40.Nd2 Rd4 41.Kf3 Nxd5 42.exd5 
Qxd5+ 43.Ne4 Rd3 44.Rhe1 Rxe3+ 45.Rxe3 Qc6 46.Rc1 Ng8 47.Kf2 a5 48.Nhg3 
Qb6 49.Kf3 Ne7 50.Re2 Nc6 51.Rd2 Nd4+ 52.Kg2 Qc6 53.Kf2 h5 54.Ke3 h4 55.
Nh5 Qb7 56.Rd3 a4 57.Nhxf6 Rxf6 58.Nxf6 Qf3+ 59.Kd2 Qf2+ 60.Kc3 Qxa2 61.
Re3 Qxb3+ 62.Kd2 Qb2+ 63.Kd1 a3 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Juarez, Carlos Eleodoro"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.O-O Bb7
9.f4 Nbd7 10.Re1 Nc5 11.Bd5 Qc7 12.b4 Ncd7 13.Bb2 Be7 14.Bxe6 fxe6 15.Nxe6
Qb6+ 16.Kh1 h5 17.Nd5 Bxd5 18.exd5 Ng4 19.Bd4 Qb7 20.Qe2 Ndf6 21.h3 Nh6 
22.Nxg7+ Kd8 23.Bb6+ Kc8 24.c4 bxc4 25.Ba5 Nxd5 26.Qxc4+ Kb8 27.Rad1 Rg8 
28.Rxd5 Rxg7 29.b5 Nf5 30.bxa6 Ng3+ 31.Kh2 Rxa6 32.Rb5 Nf1+ 33.Qxf1 Rxg2+ 
34.Qxg2 Qxb5 35.Qg8+ Kb7 36.Rxe7+ Kc6 37.Rc7# 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Panno, Oscar"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[WhiteElo "2570"]
[ECO "D17"]
[EventDate "1972.05.20"]
[PlyCount "35"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6 7.f3 Bb4 8.Nxc4 Nd5
9.Qd2 Bg6 10.e4 Ne7 11.Be2 c5 12.dxc5 Qxd2+ 13.Bxd2 Bxc5 14.Nb5 Na6 15.
Ncd6+ Kd7 16.Nxb7 f5 17.Nxc5+ Nxc5 18.Be3 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Quinteros, Miguel Angel"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "A39"]
[EventDate "1972.05.20"]
[PlyCount "115"]

1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.g3 c5 5.Bg2 cxd4 6.Nxd4 O-O 7.Nc3 Nc6 8.O-O 
Nxd4 9.Qxd4 d6 10.Qd3 Qb6 11.b3 Ng4 12.Nd5 Qd8 13.Bg5 f6 14.Bf4 Ne5 15.Qd2
Be6 16.Rac1 b6 17.Be3 Rc8 18.Rcd1 Qd7 19.Bd4 Nc6 20.Bb2 Bh3 21.Bxh3 Qxh3 
22.Nf4 Qf5 23.Rfe1 Bh6 24.f3 Bxf4 25.gxf4 Nd8 26.e4 Qh3 27.Qf2 Ne6 28.Qg3 
Qxg3+ 29.hxg3 Nc5 30.Kf2 Rfd8 31.Ke3 Nd7 32.Rd2 Kf7 33.Red1 Ke6 34.Rd5 Rc5
35.Bd4 Rxd5 36.cxd5+ Kf7 37.Rc1 Nc5 38.b4 Na6 39.a3 Rd7 40.Rc8 Rc7 41.Rh8 
Kg7 42.Rd8 Rb7 43.e5 Nc7 44.exf6+ Kf7 45.Ke4 Ne8 46.fxe7 Rxe7+ 47.Kd3 Rc7 
48.a4 Ke7 49.Ra8 Rb7 50.a5 Kd7 51.axb6 axb6 52.b5 Nc7 53.Rh8 Nxd5 54.Rxh7+
Ne7 55.Bf6 Ke6 56.Rxe7+ Rxe7 57.Bxe7 Kxe7 58.Kd4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Rubinetti, Jorge Alberto"]
[Black "Quinones, Oscar Carillo"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2290"]
[ECO "D34"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O c5 7.cxd5 exd5 8.Nc3 
Nc6 9.b3 Ne4 10.Bb2 Bf6 11.Na4 cxd4 12.Nxd4 Re8 13.Rc1 Bd7 14.Nc5 Nxd4 15.
Bxd4 Bb5 16.Re1 Qe7 17.a4 Bc6 18.e3 Rad8 19.b4 Bxd4 20.Qxd4 Nxc5 21.Rxc5 
Bxa4 22.Ra5 Bc2 23.Rxa7 Be4 24.f3 Bg6 25.Bf1 Ra8 26.Rxa8 Rxa8 27.Rc1 h6 
28.b5 Ra3 29.Rc3 Rxc3 30.Qxc3 Qe6 31.Kf2 Kh7 32.h4 h5 33.Qd4 Qf5 34.Qc5 
Qe5 35.Be2 Qe6 36.Kg2 Qe5 37.Kf2 Qe6 38.Kg2 Qe5 39.Qd4 Qxd4 40.exd4 b6 41.
Kf2 Bc2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Silva Sanchez, Carlos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2340"]
[ECO "B70"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Nf6 5.g3 c5 6.Bg2 cxd4 7.Nxd4 Qb6 8.O-O 
Nxe4 9.Nd5 Qxd4 10.Qxd4 Bxd4 11.Bxe4 Na6 12.c3 Bg7 13.Bg2 e6 14.Re1 Kd7 
15.Nf4 Rb8 16.Be3 b6 17.Bf1 Bb7 18.Rad1 Nc7 19.Rd2 Rhd8 20.Red1 Ke7 21.a4 
Bf3 22.Be2 Bxe2 23.Rxe2 Rb7 24.c4 Rc8 25.b3 Na6 26.Nd3 Nc5 27.Nxc5 bxc5 
28.Rd3 Bf8 29.Bf4 e5 30.g4 f5 31.gxf5 gxf5 32.Bc1 Rcb8 33.Rh3 Ke6 34.Bh6 
Be7 35.Ree3 Rg8+ 36.Kf1 Rg6 37.Rh5 Bf6 38.Reh3 f4 39.Ke2 Rg1 40.Bf8 e4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Szmetan, Jorge"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[ECO "E69"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 c6 7.Nc3 Nbd7 8.e4 e5 
9.Rb1 a5 10.h3 exd4 11.Nxd4 Nc5 12.Be3 Re8 13.Qc2 Nfd7 14.b3 Qe7 15.Rfe1 
Nf8 16.Rbd1 Nfe6 17.Qd2 Nxd4 18.Bxd4 Be6 19.Bxg7 Kxg7 20.Qd4+ Kg8 21.Qxd6 
Qxd6 22.Rxd6 Ra6 23.e5 Rb6 24.Nd5 Bxd5 25.cxd5 a4 26.bxa4 Nd3 27.Re3 Rb1+ 
28.Kh2 Nxf2 29.dxc6 bxc6 30.Rd2 Nd1 31.Red3 Nb2 32.Rd8 Rxd8 33.Rxd8+ Kg7 
34.Rb8 c5 35.a5 c4 36.a6 c3 37.a7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "15"]
[White "Vasquez De la Paz, Julio"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2540"]
[ECO "E63"]
[EventDate "1972.05.20"]
[PlyCount "60"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.d4 Nc6 7.O-O a6 8.d5 Na5 
9.Qd3 c5 10.dxc6 Nxc6 11.Nd2 Rb8 12.e4 b5 13.cxb5 axb5 14.Nb3 Ne5 15.Qe2 
Bg4 16.f3 Be6 17.Rd1 Bc4 18.Qe3 Nfg4 19.fxg4 Nxg4 20.Qa7 Ra8 21.Qb7 Bxb3 
22.Rd2 Bxc3 23.bxc3 Qa5 24.Bb2 Ra7 25.axb3 Qxa1+ 26.Bxa1 Rxb7 27.Ra2 Ne5 
28.Bf1 Rbb8 29.Bb2 Ra8 30.Rxa8 Rxa8 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Alborta Tito, Eduardo"]
[Black "Quinones, Oscar Carillo"]
[Result "0-1"]
[BlackElo "2290"]
[ECO "B07"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.e4 Nf6 2.Nc3 d6 3.d4 g6 4.Bg5 h6 5.Bh4 Bg7 6.f4 c5 7.d5 Qa5 8.Bb5+ Bd7 
9.Bxf6 Bxf6 10.Bxd7+ Nxd7 11.Ne2 b5 12.a3 O-O 13.O-O Qb6 14.Kh1 a5 15.Qd3 
b4 16.Nd1 Qc7 17.Qh3 Bg7 18.g4 Nb6 19.g5 Qc8 20.Qf3 hxg5 21.fxg5 Nc4 22.
Qg2 Nxb2 23.axb4 cxb4 24.Ne3 Nc4 25.Ng4 Bxa1 26.Rxa1 Ne5 27.Nh6+ Kg7 28.
Ng3 Rh8 29.Rf1 Rh7 30.Rf4 Qc3 31.Qf1 Rf8 32.Qh3 Qxc2 33.Nhf5+ gxf5 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[BlackElo "2425"]
[ECO "B82"]
[EventDate "1972.05.20"]
[PlyCount "103"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 e5
9.Nxc6 bxc6 10.fxe5 dxe5 11.Bc4 O-O 12.h3 Be6 13.Bxe6 fxe6 14.Qe2 Rb8 15.
O-O c5 16.a3 Qc8 17.Qc4 Rxb2 18.Rab1 Rxb1 19.Rxb1 Qc6 20.Qb5 Qxb5 21.Rxb5 
Ra8 22.Rb7 Bf8 23.Kf2 c4 24.a4 a5 25.Nb5 Nxe4+ 26.Kf3 Nf6 27.Nc7 Rc8 28.
Nxe6 Nd5 29.Ke4 Nc3+ 30.Kxe5 Nxa4 31.Ra7 Nb2 32.Bd4 c3 33.Kd5 a4 34.Nxf8 
Kxf8 35.Bxg7+ Kg8 36.Bf6 h5 37.Rb7 Kf8 38.Rh7 Rc4 39.Rb7 a3 40.Be7+ Kg8 
41.Bxa3 Rf4 42.Bxb2 cxb2 43.c4 Rf2 44.g4 h4 45.c5 Rh2 46.c6 Rxh3 47.Rxb2 
Rc3 48.Kd6 Kg7 49.c7 Kf6 50.Rf2+ Kg6 51.Rf8 Kg5 52.Rf5+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Camara, Helder"]
[Black "Silva Nazzari, Roberto"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2250"]
[ECO "A04"]
[EventDate "1972.05.20"]
[PlyCount "137"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.c3 e6 6.d4 cxd4 7.cxd4 d5 8.Nc3 
Nge7 9.e3 O-O 10.Bd2 Nf5 11.Rc1 Bd7 12.Re1 Qe7 13.Bf1 Nd6 14.b3 Rfd8 15.
Na4 Ne4 16.Nc5 Nxc5 17.Rxc5 Rac8 18.Qb1 Qf6 19.Bg2 Bf8 20.Rc3 a5 21.e4 
Nxd4 22.e5 Nxf3+ 23.Rxf3 Qg7 24.Bxa5 Re8 25.Bd2 Be7 26.Bf1 Qf8 27.b4 Rc7 
28.b5 b6 29.a4 Ra8 30.Qb3 Qc8 31.h4 h5 32.Bd3 Be8 33.g4 hxg4 34.Rg3 Rc4 
35.Bxc4 Qxc4 36.Qxc4 dxc4 37.Rxg4 Rxa4 38.Rb1 Bc5 39.Bc3 Ra2 40.Bd4 Bxd4 
41.Rxd4 c3 42.Rd8 Kf8 43.Rc8 Rb2 44.Rd1 Rd2 45.Rxd2 cxd2 46.Rd8 Kg7 47.
Rxd2 Bxb5 48.Rb2 Bd3 49.Rxb6 Kh6 50.Kh2 g5 51.Rb3 Be4 52.Rb4 Bg6 53.Kg3 
Bf5 54.Rb8 gxh4+ 55.Kxh4 Kg7 56.Kg5 Be4 57.Rb4 Bf5 58.Rf4 Bg6 59.Rg4 Bf5 
60.Rg1 Bg6 61.Rg3 Bf5 62.Kh5+ Kh7 63.Kg5 Kg7 64.Kf4+ Bg6 65.Ke3 Kh6 66.Kd4
Kg7 67.Kc5 f6 68.Kd6 fxe5 69.Kxe5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Chemin, Vitorio"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[BlackElo "2465"]
[ECO "A05"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.d3 e6 5.O-O d6 6.e4 Nbd7 7.Qe2 Be7 8.Nd4 a6 
9.f4 c5 10.Nf3 e5 11.c4 bxc4 12.dxc4 Bxe4 13.fxe5 dxe5 14.Nxe5 Bxg2 15.
Kxg2 Nxe5 16.Qxe5 O-O 17.Nc3 Re8 18.Bf4 Qa5 19.Nd5 Nxd5 20.Qxd5 Bf6 21.Kh3
Rad8 22.Qb7 Re7 23.Qb3 Rde8 24.Qf3 Qb6 25.Qd5 Rd8 26.Qf5 Qxb2 27.Rad1 Rde8
28.Qxc5 Re2 29.Rh1 Qxa2 30.Rd7 Rc2 31.Qd5 Qxc4 32.Re1 Rf8 33.Qb7 Qa2 34.g4
Rb2 35.Qe4 h6 36.Bg3 Qa5 37.Rf1 Qb5 38.Rdd1 Re8 39.Qf3 Qb7 40.Qxb7 Rxb7 
0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Gamarra Caceres, Carlos"]
[Black "Debarnot, Roberto Luis"]
[Result "0-1"]
[ECO "C14"]
[EventDate "1972.05.20"]
[PlyCount "108"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4 O-O 8.Nf3 
c5 9.dxc5 Nc6 10.Bd3 f6 11.O-O f5 12.Na4 Nxc5 13.Nxc5 Qxc5+ 14.Kh1 Qb4 15.
Qc1 Bd7 16.Qd2 Qxd2 17.Nxd2 Rfc8 18.Nb3 Rc7 19.c3 a6 20.Kg1 Kf7 21.Kf2 Na7
22.a4 Rb8 23.Rfc1 b5 24.a5 h6 25.Nd4 Nc6 26.Nxc6 Bxc6 27.Ke3 g5 28.g3 Rg8 
29.h3 Ke8 30.Rg1 Rcg7 31.Kf2 Kd7 32.Be2 Kc7 33.Bf3 Rb8 34.b4 Bb7 35.Ke3 
Rbg8 36.Raf1 Kb8 37.Be2 gxf4+ 38.Kxf4 Rc8 39.g4 Rf7 40.Ke3 Rxc3+ 41.Kd4 
Rxh3 42.gxf5 Rh4+ 43.Rg4 Rxg4+ 44.Bxg4 exf5 45.Rxf5 Rxf5 46.Bxf5 h5 47.Kc5
Kc7 48.e6 h4 49.e7 Bc6 50.Bh3 d4 51.Bf5 Be8 52.Kd5 d3 53.Bxd3 Kd7 54.Kc5 
Kxe7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Godoy Bugueno, David"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[ECO "B89"]
[EventDate "1972.05.20"]
[PlyCount "51"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
Nc6 9.Qe2 Bd7 10.O-O-O Qb8 11.Rhg1 b5 12.g4 b4 13.Na4 Nxd4 14.Bxd4 e5 15.
Be3 Qb5 16.Qf3 Bc6 17.Nb6 Bxe4 18.Qh3 O-O 19.g5 Ne8 20.Nxa8 Bxa8 21.g6 
hxg6 22.Rxg6 Be4 23.Rg3 Bh7 24.Rdg1 e4 25.Bd4 g5 26.Qh6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Mecking, Henrique"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1-0"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "57"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Re1 d6 8.c4 Nc6
9.Nxc6 bxc6 10.b3 Be7 11.Bb2 e5 12.c5 O-O 13.cxd6 Bxd6 14.Qc2 Nd7 15.Na3 
a5 16.Rac1 Bc5 17.Red1 Bb7 18.Bf1 Be7 19.Nb5 Qc8 20.Nd6 Bxd6 21.Rxd6 Re8 
22.Rcd1 Nf8 23.Qc5 f6 24.Bc4+ Kh8 25.Qb6 a4 26.Bf7 Re7 27.Rd8 Qc7 28.Rxa8 
Bxa8 29.Rd8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Paiva, Jose de Pinto"]
[Black "Panno, Oscar"]
[Result "0-1"]
[BlackElo "2570"]
[ECO "B34"]
[EventDate "1972.05.20"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.O-O 
d5 9.Nxc6 bxc6 10.e5 Nd7 11.f4 e6 12.Na4 Qa5 13.c4 Ba6 14.Bd2 Qc7 15.Rc1 
Qb7 16.Qe1 Rfc8 17.Rf3 dxc4 18.Qh4 Qb5 19.b3 Qd5 20.Be3 Qa5 21.Bxc4 Bxc4 
22.Rxc4 Nb6 23.Nxb6 axb6 24.Qf2 Rd8 25.h3 c5 26.Ra4 Qb5 27.Rxa8 Rxa8 28.
Kh2 Bf8 29.Qc2 Rd8 30.Rf2 Rd3 31.Bc1 Bh6 32.a4 Qxb3 33.Qxb3 Rxb3 34.Ra2 
Rb4 35.a5 bxa5 36.Rxa5 Rc4 37.Ra8+ Kg7 38.Be3 Bxf4+ 39.Bxf4 Rxf4 40.Rc8 
Rc4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Silva Sanchez, Carlos"]
[Black "Vasquez De la Paz, Julio"]
[Result "1/2-1/2"]
[BlackElo "2270"]
[ECO "B99"]
[EventDate "1972.05.20"]
[PlyCount "135"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.Bd3 Nc5 11.Rhe1 O-O 12.e5 dxe5 13.fxe5 Nd5 14.Bxe7 Nxd3+ 
15.Rxd3 Nxe7 16.Qh5 Ng6 17.Rh3 h6 18.Rhe3 Rd8 19.Nb3 b5 20.Qg4 Bb7 21.a3 
Rac8 22.Kb1 Qb6 23.g3 Rc4 24.Qe2 Rdc8 25.Rd1 Ne7 26.Rd6 Qc7 27.Red3 Nd5 
28.Nxd5 Bxd5 29.Nd4 Qc5 30.b4 Qa7 31.Qe3 Qc7 32.Qe2 a5 33.Nxb5 Qb8 34.
R6xd5 exd5 35.Nd6 Rxc2 36.Qxc2 Rxc2 37.Kxc2 axb4 38.a4 f6 39.Kb3 fxe5 40.
Rxd5 Qb6 41.Nc4 Qg1 42.Rxe5 Qb1+ 43.Nb2 Qc1 44.Re2 Qc3+ 45.Ka2 Qa3+ 46.Kb1
b3 47.Nd3 Qxa4 48.Nc1 Qd4 49.Rb2 Qe4+ 50.Ka1 Qh1 51.Kb1 g5 52.Rd2 Qe1 53.
Rb2 Qg1 54.Rd2 Kg7 55.Kb2 Kf6 56.Nxb3 Ke5 57.Kc2 Ke4 58.Rd4+ Ke5 59.Rd2 
Qf1 60.Nc1 Ke4 61.Ne2 Ke3 62.Nc3 Qc4 63.Rd1 Qc5 64.Rd3+ Kf2 65.Rd5 Qc4 66.
Rd6 h5 67.Rd5 Qb4 68.Rxg5 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "16"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Rodriguez Vargas, Orestes"]
[Result "0-1"]
[WhiteElo "2340"]
[BlackElo "2420"]
[ECO "B57"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Be3 Qxb2 8.
Ndb5 Qb4 9.Bd3 Qa5 10.Rb1 e6 11.Qd2 Qd8 12.Be2 Be7 13.O-O O-O 14.Rfd1 Ne8 
15.Na4 b6 16.Bf4 e5 17.Be3 Be6 18.c4 Na5 19.Rbc1 Nf6 20.f3 Nb7 21.g4 h6 
22.Rc2 Nh7 23.Nac3 Bg5 24.Bxg5 Nxg5 25.Kg2 Qf6 26.h4 Nh7 27.Nxd6 Rfd8 28.
Nd5 Bxd5 29.cxd5 Rxd6 30.Rh1 Nc5 31.Bb5 Ne6 32.Rc4 Nhf8 33.Qb2 Nd4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Carvajal Aliaga, Juan"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[BlackElo "2340"]
[ECO "E29"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.d4 e6 2.c4 Nf6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.a3 Bxc3+ 7.bxc3 Nc6 8.Ne2 
d6 9.O-O h6 10.e4 e5 11.d5 Na5 12.f4 exf4 13.Bxf4 Ng4 14.Ng3 Qf6 15.h3 Ne5
16.Qe2 b6 17.Nf5 Re8 18.Bh2 Ba6 19.Ne3 Qg6 20.Bxe5 dxe5 21.Rf3 Bc8 22.Raf1
f6 23.Qf2 Nb7 24.Rg3 Qf7 25.Qxf6 Qxf6 26.Rxf6 Re7 27.Rxh6 Bd7 28.Nf5 Bxf5 
29.exf5 e4 30.Be2 Rf8 31.f6 Rc7 32.fxg7 Rxg7 33.Rxg7+ Kxg7 34.Re6 Rf7 35.
Rxe4 Nd6 36.Re6 Nf5 37.Bg4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Debarnot, Roberto Luis"]
[Black "Chemin, Vitorio"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1972.05.20"]
[PlyCount "58"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 d6 5.Bg2 O-O 6.Nf3 Nc6 7.d5 Na5 8.Nd2 c5 
9.a3 Qc7 10.O-O a6 11.Re1 Rb8 12.e4 b5 13.Bf1 bxc4 14.Nxc4 Nb3 15.Rb1 Nxc1
16.Qxc1 e6 17.dxe6 fxe6 18.Qd1 d5 19.exd5 exd5 20.Nxd5 Nxd5 21.Qxd5+ Kh8 
22.Rbd1 Bg4 23.Be2 Bxe2 24.Rxe2 Rbd8 25.Nd6 Bd4 26.Re6 Bxf2+ 27.Kh1 Qg7 
28.b4 cxb4 29.axb4 Ba7 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Juarez, Carlos Eleodoro"]
[Black "Paiva, Jose de Pinto"]
[Result "0-1"]
[WhiteElo "2340"]
[ECO "C68"]
[EventDate "1972.05.20"]
[PlyCount "70"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.d3 Qf6 8.Nbd2 
Ne7 9.Re1 Ng6 10.d4 Bd6 11.hxg4 hxg4 12.Nh2 Rxh2 13.Qxg4 Qh4 14.Qxh4 Rxh4 
15.Nf3 Rh5 16.g4 Rh7 17.dxe5 Nxe5 18.Nxe5 Bxe5 19.f4 Bd4+ 20.Kg2 O-O-O 21.
c3 Bc5 22.f5 Rh4 23.Bf4 Rd3 24.Rf1 Rxg4+ 25.Kh2 g5 26.fxg6 fxg6 27.Rae1 g5
28.Bc1 Rh4+ 29.Kg2 Rg4+ 30.Kh2 Rh4+ 31.Kg2 Rhh3 32.Rf5 Rdg3+ 33.Kf1 Rh1+ 
34.Ke2 Rh2+ 35.Kf1 Rg1# 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Panno, Oscar"]
[Black "Camara, Helder"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2390"]
[ECO "E73"]
[EventDate "1972.05.20"]
[PlyCount "137"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Bg5 h6 7.Be3 b6 8.h3 Nfd7 
9.Qd2 Kh7 10.g4 e5 11.d5 a5 12.h4 Nc5 13.h5 g5 14.Nh3 Nbd7 15.f3 Bf6 16.
O-O Be7 17.Nf2 Nb7 18.Rfb1 Ndc5 19.b3 Bd7 20.Bd1 Re8 21.a3 Bf8 22.b4 Na6 
23.Ba4 Bxa4 24.Nxa4 Nb8 25.Nd3 Nd7 26.Ra2 Qf6 27.Kg2 Reb8 28.Rc1 Qd8 29.
Qd1 Kg7 30.Bf2 Kh7 31.Qc2 Be7 32.Ndb2 Bf8 33.Nd1 Be7 34.Ne3 Bf8 35.Rca1 
Qf6 36.Nf5 Qd8 37.Be1 Qe8 38.Ne3 Qd8 39.Nf5 Rc8 40.Qd1 Rcb8 41.Nc3 Qe8 42.
Ne3 Qd8 43.Nf1 Qc8 44.Nd2 Qd8 45.Nb3 Ra6 46.Nb5 Rba8 47.bxa5 Nxa5 48.Nxa5 
bxa5 49.Bf2 a4 50.Rb1 Nc5 51.Bxc5 dxc5 52.Rab2 Bd6 53.Nc3 Qe8 54.Rb7 Qc8 
55.R1b2 Qd8 56.Qb1 R6a7 57.Rxa7 Rxa7 58.Rb8 Qf6 59.Ne2 Qe7 60.Ng3 Qd7 61.
Nf5 Ra6 62.Nxh6 Kxh6 63.Rh8+ Kg7 64.Qb8 Kf6 65.Qg8 Ra7 66.Rh6+ Ke7 67.
Qxg5+ Ke8 68.Rh8+ Bf8 69.Qxe5+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Quinones, Oscar Carillo"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[ECO "C63"]
[EventDate "1972.05.20"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.O-O d6 7.Qd3 Be7 8.Nc3 
O-O 9.Bc4+ Kh8 10.Ng5 Qe8 11.Ne6 Bxe6 12.Bxe6 Nd4 13.Bh3 Qh5 14.f4 c6 15.
Be3 Bd8 16.Bxd4 exd4 17.Ne2 Bb6 18.Ng3 Qb5 19.b3 Rae8 20.a4 Qxd3 21.cxd3 
g6 22.b4 a6 23.Rab1 h5 24.Rfe1 Re7 25.Nf1 Nh7 26.g3 g5 27.Bf5 gxf4 28.gxf4
d5 29.Nd2 dxe4 30.dxe4 Bc7 31.Rf1 Nf6 32.Rbe1 Nd5 33.exd5 Rxe1 34.Rxe1 
Rxf5 35.dxc6 bxc6 36.Re7 Bxf4 37.Ne4 d3 38.Rd7 Be3+ 39.Kg2 Rd5 40.Rxd5 
cxd5 41.Kf3 d2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Rodriguez Vargas, Orestes"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2420"]
[ECO "C78"]
[EventDate "1972.05.20"]
[PlyCount "55"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.c3 b5 7.Bb3 Na5 8.Bc2 c5 
9.d4 Qc7 10.h3 Nc6 11.dxc5 dxc5 12.a4 Rb8 13.axb5 axb5 14.Be3 Be7 15.Nbd2 
O-O 16.Qe2 h6 17.Nh4 Rd8 18.Rfc1 Nh7 19.Nf5 Bxf5 20.exf5 Bg5 21.Ne4 Bxe3 
22.Qxe3 c4 23.f6 Qb6 24.Qg3 g6 25.b4 Nd4 26.cxd4 exd4 27.Nc5 d3 28.Ra6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Rubinetti, Jorge Alberto"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2425"]
[ECO "D81"]
[EventDate "1972.05.20"]
[PlyCount "65"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Qb3 dxc4 5.Qxc4 Bg7 6.e4 O-O 7.Be2 Nfd7 8.Be3 
Nb6 9.Qc5 N8d7 10.Qa3 Nf6 11.h3 c6 12.Nf3 Be6 13.b3 h6 14.O-O Qd7 15.Rfd1 
Rfd8 16.Rac1 Qe8 17.Qb4 Bc8 18.Qa5 Nbd7 19.d5 cxd5 20.exd5 b6 21.Qa3 Bb7 
22.Nb5 Qf8 23.Nc7 Rab8 24.Qxa7 Ne4 25.Nd4 Nd6 26.Qa3 Nf6 27.Nc6 Ra8 28.
Nxa8 Rxa8 29.Qb4 Rxa2 30.Bf3 Nd7 31.Bd4 e5 32.dxe6 fxe6 33.Bxg7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Silva Nazzari, Roberto"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2250"]
[ECO "B47"]
[EventDate "1972.05.20"]
[PlyCount "109"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nc6 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 O-O 10.Nxc6 bxc6 11.e5 Ne8 12.Bf4 d5 13.exd6 Bxd6 14.Bxd6 Nxd6 
15.Qd4 c5 16.Qf4 Ra7 17.Red1 Nb5 18.Qxc7 Rxc7 19.Nxb5 axb5 20.a4 bxa4 21.
Rxa4 Bd7 22.Raa1 Rb8 23.Ra8 Rxa8 24.Bxa8 Kf8 25.b3 Ke7 26.Kf1 Ra7 27.Be4 
f5 28.Bd3 e5 29.f3 Be6 30.Kf2 Ra2 31.Ke3 Kf6 32.h4 h6 33.Rf1 Bd5 34.Rc1 g5
35.hxg5+ hxg5 36.Be2 f4+ 37.gxf4 exf4+ 38.Kd3 Ra8 39.Rh1 Rd8 40.Kc3 Re8 
41.Kd2 Re3 42.Rf1 Ke5 43.Rf2 Kf6 44.Rf1 Be6 45.Rh1 Kg6 46.Rh2 Bf5 47.Rg2 
Bh3 48.Rh2 g4 49.fxg4 Kg5 50.Rf2 Bxg4 51.Rg2 Rg3 52.Bf1 Rxg2+ 53.Bxg2 Kh4 
54.c3 Kg3 55.Bf1 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Szmetan, Jorge"]
[Black "Mecking, Henrique"]
[Result "1-0"]
[BlackElo "2540"]
[ECO "B99"]
[EventDate "1972.05.20"]
[PlyCount "105"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Bxg5+ 14.Kb1 O-O 15.
fxe6 Nb6 16.Bh3 Bf6 17.Qd3 Re8 18.Bf5 Bxd4 19.exf7+ Qxf7 20.Qxd4 Nc4 21.
Rhf1 Bxf5 22.Rxf5 Qa7 23.Qd5+ Kh8 24.Rf7 Qc5 25.Qxc5 dxc5 26.Rc7 b4 27.Na4
Rxe4 28.Nxc5 Ree8 29.Nd3 Re4 30.Re1 Rh4 31.Ra7 Rc8 32.Rxa6 Nd2+ 33.Kc1 Nf3
34.Rf1 Nxh2 35.Rh1 h6 36.Nxb4 Rxb4 37.Rxh2 Rf4 38.b3 Kh7 39.a4 Rc7 40.a5 
Rb4 41.Kb2 Rb5 42.c3 Rbc5 43.Rh3 h5 44.b4 Re5 45.Rb6 g6 46.a6 Kh6 47.Kb3 
Rf7 48.c4 Rf1 49.Rg3 h4 50.Rgxg6+ Kh5 51.Rge6 Rg5 52.Rh6+ Kg4 53.a7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "17"]
[White "Vasquez De la Paz, Julio"]
[Black "Godoy Bugueno, David"]
[Result "1-0"]
[WhiteElo "2270"]
[ECO "E62"]
[EventDate "1972.05.20"]
[PlyCount "67"]

1.Nf3 g6 2.g3 Bg7 3.d4 Nf6 4.Bg2 O-O 5.O-O d6 6.c4 Nc6 7.Nc3 Bg4 8.h3 Bxf3
9.exf3 Nd7 10.Be3 Na5 11.b3 c5 12.f4 Nc6 13.Ne2 Qb6 14.dxc5 Nxc5 15.Rb1 a5
16.Qd2 Qb4 17.Rfd1 Rfd8 18.Qc1 Qb6 19.Nc3 e6 20.Ne4 Qc7 21.Nc3 Na7 22.Bd4 
Rac8 23.Bxg7 Kxg7 24.Qb2 Kg8 25.Rbc1 Qb6 26.h4 Nc6 27.h5 gxh5 28.Qe2 Ne7 
29.Qxh5 Nf5 30.Qg5+ Kh8 31.Qf6+ Ng7 32.Bf3 Rf8 33.Nb5 d5 34.Rxd5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[BlackElo "2420"]
[ECO "B57"]
[EventDate "1972.05.20"]
[PlyCount "50"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.Be3 
Qc7 9.Bd3 a6 10.f4 b5 11.a3 Bb7 12.Qf3 Be7 13.O-O O-O 14.Qh3 Rfd8 15.Rae1 
Rac8 16.Nd4 Nxd4 17.Bxd4 e5 18.fxe5 dxe5 19.Nd5 Bxd5 20.exd5 Bc5 21.Rxf6 
Bxd4+ 22.Kh1 gxf6 23.Qh6 e4 24.Rxe4 f5 25.Rg4+ fxg4 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Camara, Helder"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2340"]
[ECO "D79"]
[EventDate "1972.05.20"]
[PlyCount "129"]

1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nf6 5.c3 O-O 6.d4 cxd4 7.cxd4 d5 8.Nc3 h6
9.Ne5 b6 10.Qb3 Bb7 11.Bf4 Nc6 12.Nxc6 Bxc6 13.Be5 e6 14.Rac1 Qd7 15.Rfe1 
Rfc8 16.e3 b5 17.Bf1 a6 18.a3 Qe7 19.Rc2 Bf8 20.Bxf6 Qxf6 21.Rec1 Qd8 22.
Na2 Bd7 23.Nb4 Rxc2 24.Rxc2 Qb6 25.Nd3 a5 26.Nc5 Be8 27.h4 h5 28.Rc1 Rb8 
29.Qd1 Bd6 30.b4 Qa7 31.Bd3 axb4 32.axb4 Ra8 33.Qc2 Kg7 34.Kg2 Qa2 35.Qd1 
Qa3 36.Rb1 Qa2 37.Qf1 Qd2 38.Ra1 Rxa1 39.Qxa1 Qxb4 40.Qa8 Kf8 41.Nxe6+ Ke7
42.Qd8+ Kxe6 43.Qxe8+ Be7 44.Bxb5 Qd6 45.Qc8+ Kf6 46.Qh8+ Ke6 47.Kf3 Bf8 
48.Kg2 Ke7 49.Be2 Qf6 50.Qh7 Qg7 51.Qxg7 Bxg7 52.f3 Bf6 53.Kh3 Ke6 54.g4 
hxg4+ 55.fxg4 Be7 56.Kg3 Bd6+ 57.Kf3 Be7 58.h5 gxh5 59.gxh5 Bg5 60.Bd1 f5 
61.Be2 Bh6 62.Ba6 Bg5 63.Bc8+ Kf6 64.Bd7 Bh6 65.Be8 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Carvajal Aliaga, Juan"]
[Black "Vasquez De la Paz, Julio"]
[Result "0-1"]
[BlackElo "2270"]
[ECO "E14"]
[EventDate "1972.05.20"]
[PlyCount "64"]

1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O Be7 6.c4 O-O 7.Nc3 c5 8.b3 d5 9.
Bb2 Nc6 10.Rc1 Rc8 11.Qe2 Re8 12.Rfd1 Bf8 13.dxc5 bxc5 14.cxd5 exd5 15.Bf5
Rb8 16.Ng5 Nd4 17.Qd3 Nxf5 18.Qxf5 Bc8 19.Qc2 d4 20.exd4 cxd4 21.Na4 Qa5 
22.Nf3 Bg4 23.Bxd4 Rbc8 24.Bc3 Qh5 25.Qd3 Ne4 26.h3 Bf5 27.Qf1 Bxh3 28.
gxh3 Qxf3 29.Bd4 Rxc1 30.Rxc1 Re6 31.Bc5 Rg6+ 32.Kh2 Nd2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Chemin, Vitorio"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[BlackElo "2425"]
[ECO "E48"]
[EventDate "1972.05.20"]
[PlyCount "114"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Ne2 c5 7.O-O Nc6 8.a3 cxd4 
9.exd4 Bxc3 10.bxc3 dxc4 11.Bxc4 h6 12.Ba2 b6 13.Nf4 Bb7 14.Re1 Re8 15.Re3
Ne7 16.Rh3 Be4 17.f3 Bh7 18.Ne2 Rc8 19.g4 Qd7 20.g5 hxg5 21.Bxg5 Bf5 22.
Rg3 Nh5 23.Rg2 Bh3 24.Rf2 Qc7 25.c4 Ng6 26.Qd2 f6 27.Be3 Rcd8 28.Rc1 Nh4 
29.Nf4 Nxf4 30.Bxf4 e5 31.Bg3 Nf5 32.c5+ Kh8 33.cxb6 Qxb6 34.d5 Nd4 35.Kh1
Bf5 36.Qb4 Rc8 37.Rxc8 Rxc8 38.Qxb6 axb6 39.Kg2 Ra8 40.Rb2 Rxa3 41.Bf2 
Nxf3 42.Bb1 Bxb1 43.Rxb1 Rd3 44.Rxb6 Nd2 45.Rb8+ Kh7 46.Rd8 Nc4 47.Bc5 
Ne3+ 48.Kf3 Rxd5 49.Rxd5 Nxd5 50.Ke4 Nf4 51.Kf5 Kh6 52.Be3 Kh5 53.Bf2 Ng6 
54.Ke6 Nh4 55.h3 Kg5 56.Kf7 Nf5 57.Bc5 e4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Gamarra Caceres, Carlos"]
[Black "Quinones, Oscar Carillo"]
[Result "0-1"]
[BlackElo "2290"]
[ECO "C89"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 
9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3 15.Qd3 
Bg4 16.Qf1 Qh5 17.Be3 Rae8 18.Nd2 Re6 19.Bxd5 cxd5 20.f4 Rfe8 21.Qf2 f5 
22.Nb3 h6 23.Nc5 Bxc5 24.dxc5 g5 25.fxg5 hxg5 26.c6 f4 27.gxf4 Qh3 28.Bd4 
gxf4 29.Rxe6 Rxe6 30.Qg2 Qh5 31.Bf2 Rg6 32.c7 Bh3 33.Bg3 fxg3 34.hxg3 Qe5 
35.Qxh3 Rxg3+ 36.Kf1 Qf4+ 37.Ke1 Qe3+ 38.Kd1 Qd3+ 39.Ke1 Re3+ 40.Kf2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Godoy Bugueno, David"]
[Black "Silva Nazzari, Roberto"]
[Result "1/2-1/2"]
[BlackElo "2250"]
[ECO "A04"]
[EventDate "1972.05.20"]
[PlyCount "69"]

1.e4 e6 2.d3 c5 3.g3 Nc6 4.Bg2 g6 5.Nf3 Bg7 6.O-O Nge7 7.c3 O-O 8.Re1 d5 
9.e5 Bd7 10.Bf4 Qb6 11.b3 a5 12.Nbd2 Nf5 13.g4 Nfe7 14.g5 Nf5 15.Rb1 Rfb8 
16.Nf1 Qd8 17.h4 h5 18.gxh6 Nxh6 19.Qd2 Nf5 20.Bg5 Qc7 21.d4 cxd4 22.cxd4 
Qb6 23.Rbd1 a4 24.N1h2 axb3 25.axb3 Qxb3 26.Ng4 Be8 27.Nf6+ Kf8 28.Qf4 Ra4
29.Bh3 Ncxd4 30.Nxd4 Qxh3 31.Rd2 Rc8 32.Red1 Rcc4 33.Qf3 Qxf3 34.Nxf3 Bc6 
35.Rd3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Mecking, Henrique"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[ECO "C11"]
[EventDate "1972.05.20"]
[PlyCount "101"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Nce2 c5 6.c3 cxd4 7.cxd4 f6 8.Nf4 
Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 Qe7 11.exf6 Nxf6 12.Bd3 e5 13.dxe5 Qxe5+ 14.Qe2 
Nc6 15.Nf3 Qxe2+ 16.Nxe2 Bg4 17.Nfd4 Bxe2 18.Nxe2 O-O-O 19.f3 Rd6 20.Rd1 
d4 21.Kf2 a6 22.Rd2 Rhd8 23.g4 g6 24.Rhd1 Rf8 25.Kg3 Re8 26.Bb1 Red8 27.
Kf2 Kc7 28.h4 Rf8 29.Kg3 Rfd8 30.Bc2 b5 31.Bb1 Kb6 32.Kf2 Rf8 33.Kg3 Rfd8 
34.b3 b4 35.Nf4 Na7 36.g5 Ng8 37.Bd3 Ne7 38.Re2 Nec6 39.h5 gxh5 40.Nxh5 
Rg8 41.Kh4 Nb5 42.Bxb5 Kxb5 43.Nf6 Rh8 44.Ne4 Rd5 45.Nf6 Rd6 46.Kg3 h6 47.
Rh2 Ne5 48.Ne4 Rdd8 49.Rxh6 Rhf8 50.f4 Nc6 51.Rc1 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Paiva, Jose de Pinto"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[ECO "B84"]
[EventDate "1972.05.20"]
[PlyCount "64"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Nf6 7.O-O Nc6 8.Be3 
Be7 9.f4 d6 10.Nxc6 bxc6 11.Qd4 d5 12.b4 O-O 13.e5 Nd7 14.Na4 a5 15.a3 
axb4 16.axb4 Ba6 17.Nb6 Nxb6 18.Bxa6 Nd7 19.Qd2 f6 20.exf6 Bxf6 21.c3 c5 
22.Ra2 cxb4 23.cxb4 Bc3 24.Qc2 d4 25.Bd2 Qb6 26.Bd3 Nf6 27.Qb3 Nd5 28.Rxa8
Rxa8 29.Be1 Ne3 30.Qb1 Nxf1 31.Bxh7+ Kf8 32.Qg6 d3+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Silva Sanchez, Carlos"]
[Black "Panno, Oscar"]
[Result "0-1"]
[ECO "B67"]
[EventDate "1972.05.20"]
[PlyCount "60"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.Qe1 Qa5 10.f4 Be7 11.Nf3 b5 12.Nd2 Rc8 13.Nb3 Qc7 14.Rd2 h6 15.Bh4 
b4 16.Nd1 Nxe4 17.Qxe4 Bxh4 18.Bxa6 Ra8 19.Bb5 O-O 20.Bxc6 Bxc6 21.Qxb4 
Rxa2 22.Qxd6 Qa7 23.Nc3 Ra6 24.Qc5 Qa8 25.Rf1 Bf6 26.Rd3 Rc8 27.Qf2 Bxg2 
28.Rg1 Be4 29.Nxe4 Qxe4 30.Qf3 Qa4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "18"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Alborta Tito, Eduardo"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "C79"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.Re1 b5 7.Bb3 Na5 8.d4 Nxb3
9.axb3 exd4 10.Nxd4 Bd7 11.Nf5 h5 12.Nc3 Bxf5 13.exf5+ Be7 14.Qe2 c6 15.
Be3 Kd7 16.Bb6 Qxb6 17.Qxe7+ Kc8 18.Qxf7 Ra7 19.Re7 Rxe7 20.Qxe7 Qc7 21.
Qxc7+ Kxc7 22.Rxa6 Re8 23.Kf1 Kb7 24.Ra1 Re5 25.Re1 Rxe1+ 26.Kxe1 Kb6 27.
Kd2 c5 28.f3 d5 29.Ne2 Kc6 30.Nf4 d4 31.b4 c4 32.Ne6 Kd5 33.Nxg7 Ke5 34.
Ne6 Nd5 35.g4 Nxb4 36.f4+ Ke4 37.f6 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Alborta Tito, Eduardo"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "0-1"]
[ECO "C63"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d4 fxe4 5.Nxe5 Nxe5 6.dxe5 c6 7.Bc4 Qa5+ 8.
Nc3 Qxe5 9.O-O d5 10.f4 Bc5+ 11.Kh1 Qe7 12.Be2 Nf6 13.Na4 Bd6 14.c4 dxc4 
15.Be3 b5 16.Nc3 Bb7 17.Qe1 O-O 18.Qf2 Nd5 19.Nxd5 cxd5 20.Rad1 Rac8 21.
Qe1 Bb4 22.Qf2 Bc5 23.Bg4 Bxe3 24.Qxe3 Qc5 25.Qh3 Rce8 26.Be6+ Kh8 27.f5 
d4 28.f6 Rxf6 29.Rxf6 gxf6 30.Bf5 Re7 31.Qh6 Rf7 32.Qh4 Qd5 33.Qh3 Rg7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Debarnot, Roberto Luis"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[BlackElo "2540"]
[ECO "B44"]
[EventDate "1972.05.20"]
[PlyCount "144"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Nc2 Bxc3+ 7.bxc3 Qa5 8.
Qd3 Nc6 9.e4 Qe5 10.f3 d5 11.Be2 dxe4 12.fxe4 Qxe4 13.Qxe4 Nxe4 14.Bf3 Nc5
15.O-O Ne5 16.Be2 Ne4 17.Re1 b6 18.Bf1 Bb7 19.a4 Nd7 20.a5 Nec5 21.axb6 
axb6 22.Rxa8+ Bxa8 23.Nd4 O-O 24.Bf4 Bb7 25.Nb5 f6 26.Rd1 e5 27.Be3 f5 28.
g3 h6 29.Bh3 Be4 30.Nd6 Bd3 31.Bg2 Kh7 32.Bd5 e4 33.Bd4 Nf6 34.Bc6 Kg6 35.
Bb5 Rd8 36.Bxc5 bxc5 37.Nb7 Rc8 38.h3 Rc7 39.Nd8 Rc8 40.Ne6 Kf7 41.Nf4 Rd8
42.Ra1 e3 43.Rd1 Ne4 44.Bc6 Nf2 45.Re1 Be4 46.Bxe4 Nxe4 47.Rxe3 Rd1+ 48.
Kg2 Rd2+ 49.Re2 Rxe2+ 50.Nxe2 Ke6 51.Nf4+ Kd6 52.g4 fxg4 53.hxg4 Nxc3 54.
g5 hxg5 55.Nd3 Ne4 56.Kh3 Nf6 57.Kg3 Nd7 58.Nb2 Ke5 59.Kg4 Kf6 60.Na4 Kg6 
61.Nc3 Nf6+ 62.Kf3 Kf5 63.Na4 g4+ 64.Ke3 Nd7 65.Nb2 g3 66.Kf3 Ne5+ 67.Kxg3
Ke4 68.Na4 Kd4 69.Kf4 Nxc4 70.Kf5 Nd6+ 71.Ke6 Ne4 72.Kf5 c4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Juarez, Carlos Eleodoro"]
[Black "Silva Sanchez, Carlos"]
[Result "0-1"]
[WhiteElo "2340"]
[ECO "B87"]
[EventDate "1972.05.20"]
[PlyCount "62"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.f4 Bb7 
9.f5 e5 10.Nde2 Nbd7 11.Bg5 Be7 12.a3 Rc8 13.Ng3 Nb6 14.Bxf6 Bxf6 15.O-O 
O-O 16.Qg4 Nc4 17.Bxc4 Rxc4 18.Nh5 Kh8 19.Qf3 Qe7 20.Rad1 Rfc8 21.Rfe1 Bg5
22.f6 Bxf6 23.Rf1 Rd4 24.Rd3 Rxd3 25.cxd3 Bg5 26.Qxf7 Qxf7 27.Rxf7 Bc6 28.
Nxg7 Kg8 29.Nf5 Kxf7 30.Nxd6+ Ke6 31.Nxc8 Bd7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Panno, Oscar"]
[Black "Godoy Bugueno, David"]
[Result "1-0"]
[WhiteElo "2570"]
[ECO "E75"]
[EventDate "1972.05.20"]
[PlyCount "97"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 
9.exd5 Re8 10.Nf3 Bg4 11.O-O a6 12.h3 Bxf3 13.Bxf3 Nbd7 14.a4 Qe7 15.Rae1 
Qf8 16.Bd1 Rxe1 17.Rxe1 Re8 18.Rxe8 Qxe8 19.Bf4 Qe7 20.Qe2 Kf8 21.a5 Ne8 
22.Qxe7+ Kxe7 23.Bd2 Ne5 24.Be2 Nd7 25.b3 Bd4 26.Kf1 Ng7 27.Bd3 Ne8 28.f4 
Ng7 29.g4 f5 30.Kg2 Nf6 31.Kf3 Kf7 32.Ne2 Bb2 33.Ng3 fxg4+ 34.hxg4 h5 35.
gxh5 Ngxh5 36.Nxh5 Nxh5 37.Kg4 Ng7 38.b4 Bf6 39.b5 Bd8 40.b6 Bf6 41.Bc2 
Bb2 42.Ba4 Ba3 43.Kf3 Nf5 44.Bc6 Bb4 45.Bxb4 cxb4 46.Ke4 b3 47.Kd3 Ng3 48.
Bxb7 Ne4 49.Bc8 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Quinones, Oscar Carillo"]
[Black "Chemin, Vitorio"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[ECO "C70"]
[EventDate "1972.05.20"]
[PlyCount "54"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.d4 exd4 7.Nxd4 Bb7 8.Nf5 
g6 9.Ng3 Bg7 10.O-O Ne7 11.Nd2 O-O 12.c3 Nxb3 13.Nxb3 d6 14.Na5 Bc8 15.Bg5
f6 16.Bf4 Be6 17.Qd2 Qd7 18.Rfe1 Nc6 19.Nxc6 Qxc6 20.Ne2 Bf7 21.Nd4 Qb7 
22.Bh6 Rfe8 23.Bxg7 Kxg7 24.Qf4 c5 25.Nf3 Qe7 26.h4 h6 27.Rad1 Rad8 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Quinteros, Miguel Angel"]
[Black "Paiva, Jose de Pinto"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "E62"]
[EventDate "1972.05.20"]
[PlyCount "85"]

1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.d4 d6 5.Bg2 O-O 6.O-O Nc6 7.Nc3 Bg4 8.d5 Na5 
9.b3 c5 10.Bb2 a6 11.Qd2 Rb8 12.Ne1 b5 13.Nd1 bxc4 14.Bc3 Rb5 15.Nb2 Bh3 
16.f3 Bxg2 17.Kxg2 Ne8 18.bxc4 Bxc3 19.Qxc3 Rb8 20.Nbd3 Ng7 21.Nc2 Nb7 22.
Rab1 Qa5 23.Rb3 Qxc3 24.Rxc3 Nf5 25.e3 e6 26.g4 Ne7 27.e4 exd5 28.exd5 f5 
29.Re1 Rf7 30.Rb3 fxg4 31.fxg4 h5 32.h3 hxg4 33.hxg4 g5 34.Re6 Kg7 35.Ne3 
Ng6 36.Nf5+ Kh7 37.Kg3 Rd8 38.Rb1 Na5 39.Rh1+ Nh4 40.Nxh4 gxh4+ 41.Rxh4+ 
Kg7 42.Nf4 Rxf4 43.Kxf4 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Rodriguez Vargas, Orestes"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2420"]
[ECO "E76"]
[EventDate "1972.05.20"]
[PlyCount "47"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.dxc5 Qa5 8.Bd3 Qxc5
9.Qe2 Nc6 10.Be3 Qa5 11.O-O Ng4 12.Bd2 Qh5 13.h3 Nf6 14.Qf2 e5 15.fxe5 
dxe5 16.Be2 Rd8 17.Nd4 Bg4 18.hxg4 Nxg4 19.Bxg4 Qxg4 20.Qxf7+ Kh8 21.Ne6 
Bf8 22.Bg5 Bc5+ 23.Rf2 Bxf2+ 24.Kf1 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Silva Nazzari, Roberto"]
[Black "Carvajal Aliaga, Juan"]
[Result "1/2-1/2"]
[WhiteElo "2250"]
[ECO "B40"]
[EventDate "1972.05.20"]
[PlyCount "22"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Bd3 Nc6 7.Nxc6 bxc6 8.
Bd2 d5 9.e5 Nd7 10.Qg4 Bxc3 11.Bxc3 O-O 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Szmetan, Jorge"]
[Black "Camara, Helder"]
[Result "1-0"]
[BlackElo "2390"]
[ECO "E11"]
[EventDate "1972.05.20"]
[PlyCount "109"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 O-O 5.e3 d6 6.Be2 Qe7 7.O-O Bxd2 8.Qxd2
e5 9.Qc2 c5 10.dxe5 dxe5 11.Nd2 Nc6 12.a3 Bg4 13.Bxg4 Nxg4 14.h3 Nf6 15.b3
Rad8 16.Bb2 Qd7 17.Nf3 Qd3 18.Qxd3 Rxd3 19.Bxe5 Nxe5 20.Nxe5 Rxb3 21.Rfb1 
Rxb1+ 22.Rxb1 Re8 23.Nd3 b6 24.a4 Rd8 25.Ne5 Rd6 26.a5 Ne8 27.axb6 axb6 
28.Rb3 f6 29.Nd3 b5 30.Nxc5 bxc4 31.Rb8 Kf7 32.Rb7+ Kg8 33.Rb8 Rc6 34.
Rxe8+ Kf7 35.Ra8 Rxc5 36.Kf1 Rb5 37.Rc8 Rb1+ 38.Ke2 Rb2+ 39.Kf3 Rc2 40.
Rc7+ Kg6 41.g4 c3 42.h4 h5 43.gxh5+ Kh7 44.Kg3 Rc1 45.Kf4 c2 46.Kf5 Rh1 
47.Rxc2 Rxh4 48.f4 Rxh5+ 49.Ke6 Ra5 50.e4 Ra6+ 51.Kf5 Ra5+ 52.e5 fxe5 53.
fxe5 Kg8 54.Ke6 Kf8 55.Rc8# 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "19"]
[White "Vasquez De la Paz, Julio"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2340"]
[ECO "A35"]
[EventDate "1972.05.20"]
[PlyCount "58"]

1.d4 c5 2.Nf3 cxd4 3.Nxd4 Nc6 4.c4 g6 5.Nc3 Bg7 6.e3 Nf6 7.Be2 O-O 8.O-O 
d5 9.cxd5 Nxd5 10.Nxd5 Qxd5 11.Bf3 Qc5 12.Nxc6 bxc6 13.Qa4 Bd7 14.Rb1 Rab8
15.b3 Rb4 16.Qa3 Rb5 17.Qxc5 Rxc5 18.Ba3 Rc2 19.Rbd1 Be6 20.Bxe7 Rb8 21.
Rc1 Rxa2 22.Bxc6 Bxb3 23.Rb1 a5 24.Rfd1 Rb2 25.Rdc1 Bd5 26.Rxb2 Bxb2 27.
Rc2 Bxc6 28.Rxc6 Bf6 29.Ba3 Be7 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Camara, Helder"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2465"]
[ECO "A79"]
[EventDate "1972.05.20"]
[PlyCount "104"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 Nd7 13.Nc4 Ne5 14.Bf4 b6 15.Nxe5 Bxe5
16.Bxe5 Rxe5 17.f4 Re8 18.Bd3 f5 19.g4 Qf6 20.e5 dxe5 21.d6 e4 22.Bb5 Nxb5
23.Nxb5 Be6 24.Nc7 Bc4 25.Nxa8 Rxa8 26.Rc1 Bd3 27.Qb3+ Qf7 28.Qxf7+ Kxf7 
29.gxf5 gxf5 30.Rfe1 Rg8+ 31.Kf2 Rg4 32.Ke3 Rh4 33.Rg1 Rxh2 34.Rce1 Ke6 
35.Rg5 Rxb2 36.Rxf5 Kxd6 37.Rh5 Ra2 38.Rxh7 Rxa4 39.Rh6+ Kd5 40.f5 Ra2 41.
Kf4 Rf2+ 42.Kg5 b5 43.Rh8 c4 44.Rd8+ Ke5 45.Re8+ Kd4 46.f6 Kc3 47.Kg6 Kd2 
48.Ra1 c3 49.f7 e3+ 50.Kg7 c2 51.f8=Q Rxf8 52.Kxf8 e2 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Carvajal Aliaga, Juan"]
[Black "Panno, Oscar"]
[Result "0-1"]
[BlackElo "2570"]
[ECO "E82"]
[EventDate "1972.05.20"]
[PlyCount "56"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6 7.Bd3 Bb7 8.Qd2 c5 9.
Nge2 Nc6 10.h4 e6 11.O-O-O d5 12.cxd5 exd5 13.exd5 Nxd5 14.Nxd5 cxd4 15.
Bh6 Qxd5 16.Bxg7 Kxg7 17.Kb1 Qe5 18.Be4 h5 19.g4 hxg4 20.h5 gxf3 21.Bxf3 
Qf5+ 22.Ka1 Qxf3 23.Nxd4 Qf6 24.hxg6 Rh8 25.Nxc6 Bxc6 26.Rhf1 Rad8 27.Qc1 
Rxd1 28.Qxd1 Qxf1 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Chemin, Vitorio"]
[Black "Rodriguez Vargas, Orestes"]
[Result "1/2-1/2"]
[BlackElo "2420"]
[ECO "B25"]
[EventDate "1972.05.20"]
[PlyCount "17"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.f4 d6 7.Nf3 Nge7 8.O-O O-O 
9.Ne2 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Gamarra Caceres, Carlos"]
[Black "Alborta Tito, Eduardo"]
[Result "0-1"]
[ECO "C06"]
[EventDate "1972.05.20"]
[PlyCount "44"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.Ngf3 cxd4 7.Nb3 Nc6 8.Bb5 
Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bxc6 bxc6 12.Nbxd4 c5 13.Ne2 Rb8 14.b3 Qc7
15.Qg5 Ba6 16.h4 f6 17.exf6 Rxf6 18.Rd1 Rbf8 19.Ng3 Rxf3 20.Nh5 R3f7 21.f4
Nf6 22.g3 Qa5+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Godoy Bugueno, David"]
[Black "Juarez, Carlos Eleodoro"]
[Result "1/2-1/2"]
[BlackElo "2340"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.O-O Nf6 7.Re1 d6 8.c4 Bd7
9.Nc3 Be7 10.Be3 Nc6 11.Rc1 Ne5 12.Be2 O-O 13.b3 Rac8 14.f4 Ng6 15.g3 Qa5 
16.Qd2 Bd8 17.Nc2 b5 18.b4 Qc7 19.Na3 Qb7 20.cxb5 axb5 21.Bf3 Bb6 22.Kg2 
Bxe3 23.Qxe3 Bc6 24.Nc2 d5 25.f5 Ne7 26.a4 bxa4 27.b5 Bd7 28.g4 e5 29.exd5
e4 30.Nxe4 Nexd5 31.Qd2 Qb8 32.Nb4 Nf4+ 33.Kh1 Rxc1 34.Rxc1 Bxb5 35.Qd6 
Be2 36.Bxe2 Nxe2 37.Re1 Qb5 38.Qd2 Rb8 39.Rxe2 a3 40.Na2 Nd5 41.Nec3 
1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Mecking, Henrique"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "B81"]
[EventDate "1972.05.20"]
[PlyCount "53"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.h4 a6 
9.f4 Be7 10.Be3 O-O 11.Bg2 Na5 12.Qe2 b5 13.h5 Re8 14.O-O-O Nf8 15.g6 fxg6
16.hxg6 hxg6 17.e5 d5 18.f5 Bg5 19.fxg6 Nxg6 20.Kb1 Bxe3 21.Qxe3 Nc4 22.
Qh3 Ngxe5 23.Qh7+ Kf8 24.Rhf1+ Ke7 25.Qxg7+ Kd6 26.Ne4+ dxe4 27.Nxe6+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Paiva, Jose de Pinto"]
[Black "Debarnot, Roberto Luis"]
[Result "0-1"]
[ECO "E43"]
[EventDate "1972.05.20"]
[PlyCount "83"]

1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.Nc3 Bb4 5.e3 O-O 6.Bd3 Bb7 7.O-O Bxc3 8.bxc3 
Be4 9.Qc2 d5 10.Ne5 c5 11.Bxe4 Nxe4 12.cxd5 exd5 13.f3 Nf6 14.e4 cxd4 15.
Bg5 Qd6 16.Bxf6 Qxf6 17.cxd4 Qe6 18.Qb3 dxe4 19.Qxe6 fxe6 20.fxe4 Rd8 21.
Rac1 Nd7 22.Nf7 Rdc8 23.Nd6 Rxc1 24.Rxc1 Nf6 25.Rc7 Ne8 26.Nxe8 Rxe8 27.
Kf2 Rf8+ 28.Ke3 Rf7 29.Rc6 Re7 30.a4 Kf7 31.Kd3 Rb7 32.Kc4 a6 33.d5 b5+ 
34.axb5 axb5+ 35.Kb4 exd5 36.exd5 Ke7 37.Rc5 Kd6 38.Rc8 Kxd5 39.Rd8+ Ke4 
40.Rh8 h6 41.Rf8 Rd7 42.Re8+ 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Silva Sanchez, Carlos"]
[Black "Szmetan, Jorge"]
[Result "0-1"]
[ECO "B42"]
[EventDate "1972.05.20"]
[PlyCount "66"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.O-O Nf6 7.c4 Nc6 8.Nxc6 
dxc6 9.f4 e5 10.f5 Bc5+ 11.Kh1 O-O 12.Nc3 Rd8 13.Qe2 b5 14.Bg5 Bd4 15.Bxf6
gxf6 16.Rf3 b4 17.Nd1 c5 18.Ne3 Bxe3 19.Qxe3 Kf8 20.Rh3 Qd6 21.Bc2 Qd4 22.
Qxd4 Rxd4 23.Rxh7 Bb7 24.Rh8+ Kg7 25.Rxa8 Bxa8 26.Kg1 Rxc4 27.Bd3 Rd4 28.
Bxa6 Bxe4 29.Re1 c4 30.a4 c3 31.bxc3 bxc3 32.Ra1 c2 33.Be2 Rb4 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Belmonte Schwarzbaum, Juan"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B88"]
[EventDate "1972.05.20"]
[PlyCount "47"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Ndb5 a6 8.Be3 
Qd8 9.Nd4 e6 10.Bb3 Be7 11.f4 Nxd4 12.Qxd4 O-O 13.O-O-O Qa5 14.Qb6 Qxb6 
15.Bxb6 Bd7 16.e5 Ne8 17.Bc5 Rc8 18.exd6 Bf6 19.Ne4 Bd8 20.Bd4 Nf6 21.Nc5 
Bb6 22.Nxd7 Nxd7 23.Bxb6 Nxb6 24.d7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "20"]
[White "Vasquez De la Paz, Julio"]
[Black "Silva Nazzari, Roberto"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2250"]
[ECO "D94"]
[EventDate "1972.05.20"]
[PlyCount "37"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.cxd5 Nxd5 7.Bc4 Nxc3 8.bxc3
c5 9.O-O cxd4 10.cxd4 Nc6 11.Ba3 Bg4 12.Be2 Rc8 13.Rb1 Qd7 14.Qb3 Rc7 15.
Rfd1 Bf5 16.Rbc1 Na5 17.Qb4 Nc6 18.Qa4 Rfc8 19.h3 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Alborta Tito, Eduardo"]
[Black "Chemin, Vitorio"]
[Result "1-0"]
[ECO "B59"]
[EventDate "1972.05.20"]
[PlyCount "73"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 a5 10.a3 Be6 11.f3 a4 12.Nd2 d5 13.exd5 Nxd5 14.Nxd5 Bxd5 15.Bd3
f5 16.Qe2 Kh8 17.Rad1 Nd4 18.Bxd4 exd4 19.Qe5 Bc6 20.f4 Bd6 21.Qxd4 b6 22.
Kh1 Qc7 23.Rde1 Rad8 24.Nc4 Bc5 25.Qe5 Qb7 26.Qe2 Qc7 27.Ne5 Bb7 28.Qh5 
Rf6 29.Bxf5 Bxg2+ 30.Kxg2 Rd2+ 31.Kh1 g6 32.Nxg6+ Kg7 33.Ne5 Kh8 34.Bd3 
Qg7 35.Ng4 Bf8 36.Qg5 Qf7 37.Qxf6+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Belmonte Schwarzbaum, Juan"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[ECO "C77"]
[EventDate "1972.05.20"]
[PlyCount "121"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6 dxc6 6.d3 Bd6 7.O-O h6 8.Nbd2 
Be6 9.b3 Qe7 10.Bb2 Nd7 11.Re1 O-O-O 12.Nc4 f6 13.Qd2 g5 14.Rad1 Bc5 15.
Ne3 h5 16.d4 exd4 17.Nxd4 Ne5 18.Qe2 Bd7 19.Nef5 Qf7 20.Nf3 Ng4 21.Bd4 
Bxd4 22.Rxd4 Rhe8 23.Red1 Bxf5 24.Rxd8+ Rxd8 25.Rxd8+ Kxd8 26.exf5 Qd5 27.
h3 Nh6 28.g4 hxg4 29.hxg4 Nxg4 30.Nxg5 Qxf5 31.Nf3 Ne5 32.Nxe5 Qxe5 33.
Qxe5 fxe5 34.Kg2 Ke7 35.Kf3 Kf6 36.Ke4 Ke6 37.f4 exf4 38.Kxf4 Kd5 39.Ke3 
b5 40.c3 c5 41.Kd3 c4+ 42.bxc4+ bxc4+ 43.Ke3 Ke5 44.Kf3 a5 45.a4 Kf5 46.
Ke3 Ke6 47.Kd4 Kd6 48.Kxc4 Kc6 49.Kd4 Kd6 50.Kc4 c6 51.Kd4 c5+ 52.Ke4 Kd7 
53.Kd5 c4 54.Kxc4 Kc6 55.Kd4 Kd6 56.c4 Kc6 57.c5 Kc7 58.Kd5 Kd7 59.c6+ Kc8
60.Kc5 Kc7 61.Kb5 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Debarnot, Roberto Luis"]
[Black "Camara, Helder"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "E63"]
[EventDate "1972.05.20"]
[PlyCount "90"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O a6 8.h3 Rb8 
9.Bg5 h6 10.Be3 Bd7 11.Nd5 e6 12.Nxf6+ Qxf6 13.Qd2 Kh7 14.Rac1 Qe7 15.d5 
Ne5 16.Nd4 c5 17.dxc6 Nxc6 18.b3 f5 19.Nxc6 bxc6 20.Rfd1 d5 21.Rc2 Rfc8 
22.f4 Be8 23.cxd5 exd5 24.Bd4 Bxd4+ 25.Qxd4 c5 26.Qf2 d4 27.Bd5 Bb5 28.Bc4
Bc6 29.Bd3 Ba8 30.Kh2 Rb6 31.Rdc1 a5 32.g4 fxg4 33.hxg4 Rf6 34.Qh4 Kg7 35.
Qg3 Re6 36.a3 Re3 37.Qf2 h5 38.g5 Qe6 39.Qh4 Qg4 40.Qxg4 hxg4 41.Kg1 Rh8 
42.Kf2 g3+ 43.Ke1 Rh1+ 44.Kd2 g2 45.Rxc5 g1=Q 0-1

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Juarez, Carlos Eleodoro"]
[Black "Carvajal Aliaga, Juan"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B13"]
[EventDate "1972.05.20"]
[PlyCount "77"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 Qc7 6.h3 e5 7.dxe5 Nxe5 8.Bc2 
Nf6 9.Ne2 Be6 10.O-O Bc5 11.Nd2 a6 12.Nb3 Ba7 13.Re1 O-O-O 14.Nbd4 Bb8 15.
Ng3 Qd7 16.Bf4 Ng6 17.Bxb8 Kxb8 18.Bd3 Nf4 19.Bf1 h5 20.b4 h4 21.Nge2 g5 
22.b5 a5 23.Qa4 Qc7 24.Nxf4 gxf4 25.b6 Qxc3 26.Nxe6 fxe6 27.Rab1 Ne4 28.
Rec1 Qd2 29.Rc2 Nc3 30.Qb3 Nxb1 31.Rxd2 Nxd2 32.Qc3 Nxf1 33.Qxa5 Ng3 34.
Qa7+ Kc8 35.Qa8+ Kd7 36.Qxb7+ Ke8 37.fxg3 fxg3 38.Qc7 Rd7 39.Qc8+ 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Panno, Oscar"]
[Black "Vasquez De la Paz, Julio"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2570"]
[ECO "E56"]
[EventDate "1972.05.20"]
[PlyCount "43"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 dxc4 
9.Bxc4 Ba5 10.Na4 cxd4 11.exd4 Nd5 12.Bg5 Qd6 13.Nc5 Bd8 14.Ne4 Qc7 15.Rc1
Bxg5 16.Nexg5 Nf6 17.Re1 Bd7 18.Bd3 Rac8 19.Qe2 Nxd4 20.Qe3 Nxf3+ 21.Nxf3 
Qb8 22.Rcd1 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Quinones, Oscar Carillo"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2540"]
[ECO "E74"]
[EventDate "1972.05.20"]
[PlyCount "22"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Bg5 h6 7.Be3 c5 8.d5 e6 9.
Qd2 exd5 10.exd5 Kh7 11.h3 Re8 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Quinteros, Miguel Angel"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2465"]
[ECO "E63"]
[EventDate "1972.05.20"]
[PlyCount "89"]

1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.d4 O-O 5.Bg2 d6 6.Nc3 Nc6 7.O-O a6 8.h3 Nd7 
9.e4 e5 10.d5 Nd4 11.Be3 Qf6 12.h4 h6 13.Nh2 Qe7 14.h5 gxh5 15.Qxh5 Nc2 
16.Rac1 Nxe3 17.fxe3 Qg5 18.Qxg5 hxg5 19.Bh3 Nb6 20.Bxc8 Raxc8 21.b3 Kh7 
22.g4 Kg6 23.Kg2 Rh8 24.Nf3 Rh7 25.Rh1 Rch8 26.Rxh7 Rxh7 27.Nd1 Nd7 28.Nf2
Bf8 29.Nd2 Be7 30.Nf1 Rh8 31.Ng3 Nf6 32.Nf5 Bf8 33.b4 b6 34.Rc3 Nd7 35.Ra3
Nb8 36.Nd3 f6 37.Rc3 Nd7 38.a4 Kf7 39.Ra3 Be7 40.a5 Nb8 41.b5 bxa5 42.bxa6
Nxa6 43.Rxa5 Nc5 44.Nxc5 dxc5 45.Ra7 1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Rubinetti, Jorge Alberto"]
[Black "Paiva, Jose de Pinto"]
[Result "1-0"]
[WhiteElo "2425"]
[ECO "E74"]
[EventDate "1972.05.20"]
[PlyCount "79"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 Qa5 8.Bd2 a6 9.
a4 Qc7 10.Nf3 e6 11.O-O exd5 12.cxd5 Re8 13.Qc2 Bg4 14.h3 Bxf3 15.Bxf3 
Nbd7 16.a5 b5 17.axb6 Qxb6 18.Ra2 Ra7 19.Rfa1 Nb8 20.Be2 Rae7 21.Ra4 Qd8 
22.Bxa6 Nxa6 23.Rxa6 Nxe4 24.Ra8 Qxa8 25.Rxa8 Rxa8 26.Nxe4 h6 27.Bf4 f5 
28.Nc3 Ra6 29.Kh2 Rb6 30.Na4 Ra6 31.Qc4 Rea7 32.Nxc5 dxc5 33.d6+ Kf8 34.d7
Bf6 35.Bc7 Rxc7 36.Qxa6 Be5+ 37.f4 Bxf4+ 38.g3 Bxg3+ 39.Kxg3 Rxd7 40.Qc8+ 
1-0

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Silva Nazzari, Roberto"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[WhiteElo "2250"]
[BlackElo "2340"]
[ECO "B16"]
[EventDate "1972.05.20"]
[PlyCount "18"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6 6.Bc4 Bf5 7.Ne2 Nd7 8.
Ng3 Bg6 9.h4 h6 1/2-1/2

[Event "South American zonal"]
[Site "Sao Paulo BRA"]
[Date "1972.??.??"]
[Round "21"]
[White "Szmetan, Jorge"]
[Black "Godoy Bugueno, David"]
[Result "0-1"]
[ECO "C69"]
[EventDate "1972.05.20"]
[PlyCount "104"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 exd4 7.Nxd4 c5 8.Nb3 
Qxd1 9.Rxd1 Bd7 10.Bf4 O-O-O 11.Nc3 Be6 12.Rxd8+ Kxd8 13.Rd1+ Kc8 14.Nd5 
Bxd5 15.exd5 Bd6 16.Be3 b6 17.Nd2 Ne7 18.Ne4 Rd8 19.f4 Nf5 20.Bd2 Bf8 21.
c4 c6 22.Nc3 Ne7 23.Be3 cxd5 24.cxd5 Nf5 25.Bf2 Bd6 26.g3 Re8 27.a4 Kd7 
28.b3 g5 29.fxg5 fxg5 30.Re1 Rxe1+ 31.Bxe1 Nd4 32.Ne4 Be7 33.Bd2 h6 34.a5 
b5 35.Bc3 Nxb3 36.g4 Bf8 37.Nf6+ Kd8 38.Be5 Nxa5 39.Nh7 Ke8 40.Bc7 Nc4 41.
Nf6+ Kf7 42.Ne4 b4 43.d6 Ke6 44.Nxc5+ Kd5 45.Nd3 b3 46.d7 Be7 47.d8=Q+ 
Bxd8 48.Bxd8 Kd4 49.Nb4 a5 50.Bf6+ Ke4 51.Na6 b2 52.Nc5+ Kf3 0-1

