[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Berry, Jonathan"]
[Black "Grimaldi, Rene"]
[Result "1-0"]
[WhiteElo "2315"]
[ECO "C29"]
[EventDate "1977.11.15"]
[PlyCount "51"]

1.e4 e5 2.Nc3 Nf6 3.f4 d6 4.Nf3 exf4 5.d4 Be7 6.Bxf4 O-O 7.Bd3 Bg4 8.h3 
Bh5 9.e5 dxe5 10.dxe5 Ne8 11.Qe2 c6 12.O-O-O Qa5 13.g4 Bg6 14.Bc4 Nc7 15.
h4 h6 16.h5 Bh7 17.g5 hxg5 18.Bxg5 Bb4 19.Bf6 gxf6 20.exf6 Ne8 21.Ne5 Nxf6
22.Nxf7 Rxf7 23.Qe6 Qc7 24.Qxf6 Na6 25.Rhg1+ Kf8 26.Qh8+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Camaton, Carlos"]
[Black "Donoso Velasco, Pedro"]
[Result "1/2-1/2"]
[BlackElo "2400"]
[ECO "A16"]
[EventDate "1977.11.15"]
[PlyCount "61"]

1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.d3 c6 6.Nf3 d5 7.cxd5 cxd5 8.O-O 
Nc6 9.Bd2 d4 10.Na4 e5 11.Bg5 h6 12.Bxf6 Qxf6 13.Rc1 Qe7 14.a3 Nd8 15.Qd2 
Ne6 16.Qb4 Re8 17.Qxe7 Rxe7 18.Nd2 Rb8 19.Rfd1 Bd7 20.Nc5 Nxc5 21.Rxc5 Be6
22.Rdc1 b6 23.Rc7 Rbe8 24.Ne4 Rxc7 25.Rxc7 Rc8 26.Rxc8+ Bxc8 27.Nd6 Bd7 
28.Bb7 Kf8 29.Nc8 Bxc8 30.Bxc8 Ke7 31.Ba6 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Chavez Chavez, Romelio"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[BlackElo "2290"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "57"]

1.e4 g6 2.d4 Bg7 3.f4 d6 4.Nf3 c5 5.c3 Qb6 6.e5 Nh6 7.Be2 O-O 8.O-O cxd4 
9.cxd4 dxe5 10.fxe5 Nc6 11.Kh1 Nf5 12.Nc3 Rd8 13.Bc4 Ncxd4 14.Nxd4 Rxd4 
15.Qe2 Rh4 16.Bf4 g5 17.g3 Rh6 18.Nd5 Qc6 19.g4 Nd4 20.Qe4 Qxc4 21.Rac1 
Qe2 22.Qxd4 Bxg4 23.Rf2 Bf3+ 24.Kg1 Qe4 25.Nxe7+ Kf8 26.Qc5 gxf4 27.Ng6+ 
Kg8 28.Ne7+ Kf8 29.Nf5+ 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Denker, Arnold"]
[Black "Hook, William"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2250"]
[ECO "E98"]
[EventDate "1977.11.15"]
[PlyCount "60"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 
9.Ne1 Nd7 10.Be3 f5 11.b4 f4 12.Bd2 Nf6 13.Nd3 g5 14.f3 h5 15.Nf2 Rf7 16.
c5 Bf8 17.Rc1 Kh8 18.Nb5 Neg8 19.Rc3 a6 20.Na3 Nh6 21.h3 Rg7 22.Qc2 g4 23.
fxg4 hxg4 24.hxg4 Nhxg4 25.Nxg4 Nxg4 26.Rff3 Qg5 27.Bf1 Kg8 28.Rb3 Qh4 29.
Bxf4 exf4 30.g3 Ne3 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Escondrillas, Carlos"]
[Black "De Leon, Otto"]
[Result "1/2-1/2"]
[WhiteElo "2265"]
[ECO "A34"]
[EventDate "1977.11.15"]
[PlyCount "43"]

1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 c5 5.e3 a6 6.d4 Qc7 7.b3 d6 8.Nge2 Nbd7 
9.O-O Rb8 10.a4 b6 11.d5 O-O 12.Bb2 Ne8 13.Qd2 Ndf6 14.Ra2 Bd7 15.Rfa1 Qc8
16.Nd1 Nc7 17.Bc3 Bh3 18.f3 Bxg2 19.Kxg2 Qd7 20.Nf2 Rb7 21.e4 Rfb8 22.Nd3 
1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Garcia, Gildardo"]
[Black "Bademian Orchanian, Jose"]
[Result "1-0"]
[WhiteElo "2340"]
[BlackElo "2235"]
[ECO "C81"]
[EventDate "1977.11.15"]
[PlyCount "109"]

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.Rd1 O-O 11.c4 bxc4 12.Bxc4 Bc5 13.Be3 Bxe3 14.fxe3 Qc8 
15.Rxd5 Qb7 16.Rd1 Bxc4 17.Qxc4 Nxe5 18.Nxe5 Qxb2 19.Qd4 Qf2+ 20.Kh1 Qh4 
21.Nc3 Ng3+ 22.Kg1 Qxd4 23.exd4 Nf5 24.Nd5 Rad8 25.Nxc7 Nxd4 26.Nxa6 Rfe8 
27.Nf3 Nc2 28.Rxd8 Rxd8 29.Rb1 Kf8 30.Rb8 Ke7 31.Rxd8 Kxd8 32.Kf2 Kd7 33.
Ke2 Kc6 34.Kd3 Na3 35.Ng5 f6 36.Nxh7 Nb5 37.Nf8 Nd6 38.Ne6 g5 39.Nac5 Kd5 
40.a4 Nc4 41.Kc3 Ne3 42.a5 Kc6 43.Kb4 Nd5+ 44.Ka4 Ne3 45.g3 Nf1 46.Kb4 
Nxh2 47.Nd4+ Kc7 48.Kb5 g4 49.a6 Nf3 50.Nxf3 gxf3 51.Nd3 f5 52.Kc5 Kb8 53.
Kb6 Ka8 54.a7 f4 55.Nxf4 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Zarco Castillo, Jose"]
[Black "Anelli, Antonio"]
[Result "1-0"]
[BlackElo "2290"]
[ECO "E64"]
[EventDate "1977.11.15"]
[PlyCount "87"]

1.c4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.d4 c5 7.d5 Na6 8.O-O Nc7 
9.e4 a6 10.a4 b6 11.h3 Rb8 12.Be3 b5 13.axb5 axb5 14.cxb5 Nxb5 15.Qc2 Bd7 
16.Rfd1 Ne8 17.Qd2 Nxc3 18.bxc3 Rb3 19.Rdc1 Qb6 20.Ra2 Nc7 21.Bh6 Ra8 22.
Rxa8+ Nxa8 23.Bxg7 Kxg7 24.Qa2 Nc7 25.Rc2 Rb1+ 26.Kh2 Qb8 27.Nd2 Rb7 28.c4
Rb6 29.Qa1+ f6 30.f4 Ra6 31.Qe1 Rb6 32.e5 Qd8 33.Rc3 Na6 34.exf6+ exf6 35.
Re3 Kf7 36.g4 Nb4 37.Qh4 Qh8 38.f5 Qg7 39.fxg6+ hxg6 40.Ne4 Nc2 41.Re2 Nd4
42.Re1 Ba4 43.Qg3 Qf8 44.Nxc5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "1"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2280"]
[ECO "B93"]
[EventDate "1977.11.15"]
[PlyCount "65"]

1.e4 c5 2.Ne2 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nb3 Qc7 8.a4 b6 
9.Bd3 Be7 10.O-O Bb7 11.Qf3 exf4 12.Qxf4 Nbd7 13.Nd4 g6 14.h3 O-O 15.Qf2 
d5 16.Bf4 Bd6 17.Ncb5 axb5 18.Nxb5 Bxf4 19.Nxc7 Bxc7 20.exd5 Bxd5 21.Bb5 
Be5 22.Rad1 Be6 23.c3 Nc5 24.Qe3 Ncd7 25.Bxd7 Nxd7 26.Rxd7 Bxd7 27.Qxe5 
Bxa4 28.Ra1 Bc6 29.Rxa8 Rxa8 30.Qc7 Bd5 31.Qxb6 Ra1+ 32.Kf2 Rd1 33.Ke2 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Anelli, Antonio"]
[Black "Berry, Jonathan"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2315"]
[ECO "A06"]
[EventDate "1977.11.15"]
[PlyCount "59"]

1.b3 Nf6 2.Bb2 d5 3.Nf3 e6 4.e3 Be7 5.Be2 O-O 6.O-O c5 7.c4 Nc6 8.d4 cxd4 
9.exd4 b6 10.Nbd2 Bb7 11.Rc1 Rc8 12.Ne5 dxc4 13.Nxc6 Bxc6 14.bxc4 Qd7 15.
Nf3 Qb7 16.Qb3 Rfd8 17.a4 Qa6 18.Ra1 Ne4 19.Rfd1 Bf6 20.Bd3 Qa5 21.Qc2 Ng5
22.Ne5 Bxe5 23.dxe5 f5 24.exf6 Nh3+ 25.Kf1 Nf4 26.Bxh7+ Kf7 27.Be4 Rxd1+ 
28.Rxd1 Bxa4 29.Qd2 Bxd1 30.Qd7+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Bademian Orchanian, Jose"]
[Black "Camaton, Carlos"]
[Result "0-1"]
[WhiteElo "2235"]
[ECO "B42"]
[EventDate "1977.11.15"]
[PlyCount "82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 d6 6.Nc3 Nf6 7.O-O Nbd7 8.Be3 
b5 9.a3 Bb7 10.f4 h5 11.h3 Be7 12.Qf3 h4 13.Rae1 Qc7 14.f5 e5 15.Nb3 Rc8 
16.Rf2 Nb6 17.Rd2 Ba8 18.Bg5 Nc4 19.Bxc4 bxc4 20.Bxf6 Bxf6 21.Nc1 Qb6+ 22.
Kh1 Qxb2 23.Rxd6 Qxa3 24.Red1 Be7 25.R6d2 Bg5 26.f6 Bxd2 27.fxg7 Rg8 28.
Qf5 Rd8 29.Qh7 Ke7 30.N1e2 Qd6 31.Nd5+ Bxd5 32.Rxd2 Bxe4 33.Qxe4 Qxd2 34.
Qxe5+ Kd7 35.Nd4 Qb4 36.Qf5+ Kc7 37.Qxf7+ Kb6 38.Nf5 Qe1+ 39.Kh2 Qe5+ 40.
Kg1 Rd1+ 41.Kf2 Qf4+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Chavez Chavez, Romelio"]
[Black "Denker, Arnold"]
[Result "1/2-1/2"]
[BlackElo "2335"]
[ECO "B07"]
[EventDate "1977.11.15"]
[PlyCount "64"]

1.e4 d6 2.d4 Nf6 3.Bd3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nd5 7.O-O c5 8.Be4 dxe5 
9.dxe5 Nb6 10.Qe2 Qc7 11.Nc3 Be6 12.Ng5 Bc4 13.Bd3 Bxd3 14.Qxd3 h6 15.Nf3 
Nc6 16.Be3 Rad8 17.Qe4 a6 18.Kh1 Nb4 19.f5 gxf5 20.Qxf5 N4d5 21.Nxd5 Nxd5 
22.Bd2 Qc6 23.Rae1 Qe6 24.Qh5 Qg6 25.Qh4 e6 26.Re4 Ne7 27.Rg4 Nf5 28.Qh3 
Qh7 29.Bc1 Rd7 30.Nh4 Nxh4 31.Qxh4 Rd4 32.Bf4 Kh8 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Donoso Velasco, Pedro"]
[Black "Escondrillas, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2265"]
[ECO "C48"]
[EventDate "1977.11.15"]
[PlyCount "52"]

1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Nd4 5.Ba4 Bc5 6.O-O Qe7 7.d3 c6 8.Nxd4 
Bxd4 9.Be3 Bxe3 10.fxe3 O-O 11.Bb3 d6 12.Qf3 Be6 13.h3 Nd7 14.Ne2 Nc5 15.
Ng3 Nxb3 16.axb3 f6 17.Nf5 Bxf5 18.Qxf5 g6 19.Qg4 Kh8 20.Rf2 Rf7 21.Raf1 
Raf8 22.Qh4 Qe6 23.c4 f5 24.Qh6 Kg8 25.exf5 Rxf5 26.Rxf5 Rxf5 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Grimaldi, Rene"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2385"]
[ECO "B40"]
[EventDate "1977.11.15"]
[PlyCount "82"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.Nbd2 g6 5.g3 Bg7 6.Bg2 Nge7 7.c3 O-O 8.Qc2 d6 
9.O-O Bd7 10.Rd1 Rc8 11.Nf1 d5 12.Bg5 h6 13.Bd2 Kh7 14.Rac1 b5 15.h4 b4 
16.N3h2 bxc3 17.bxc3 Qa5 18.f4 Qa6 19.Be1 d4 20.e5 dxc3 21.Bxc3 Nd5 22.Qf2
Nxc3 23.Rxc3 f6 24.exf6 Bxf6 25.Rb3 Bd4 26.Ne3 e5 27.Kh1 Rce8 28.Nhf1 Be6 
29.Be4 exf4 30.gxf4 Bxb3 31.axb3 Ne7 32.h5 Qf6 33.hxg6+ Nxg6 34.f5 Ne5 35.
Qf4 Rg8 36.Nh2 Bxe3 37.Qxe3 Ng4 38.Qf4 Nxh2 39.Kxh2 Rg5 40.Qc7+ Kh8 41.Rd2
Rg4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Hook, William"]
[Black "Garcia, Gildardo"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2340"]
[ECO "A06"]
[EventDate "1977.11.15"]
[PlyCount "44"]

1.Nf3 Nf6 2.b3 d5 3.Bb2 e6 4.e3 c5 5.d4 Nc6 6.Nbd2 Be7 7.c4 O-O 8.Bd3 b6 
9.Rc1 Bb7 10.O-O Rc8 11.Qe2 cxd4 12.exd4 dxc4 13.bxc4 Qd6 14.Rfd1 Rfd8 15.
Nb3 Qf4 16.Bb1 Rd7 17.d5 exd5 18.cxd5 Nxd5 19.Rc4 Qh6 20.Bc1 Qe6 21.Qc2 
Qg6 22.Qb2 Nf4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "Pesantes Carbajal, Carlos"]
[Black "Gamarra Caceres, Carlos"]
[Result "0-1"]
[WhiteElo "2290"]
[BlackElo "2280"]
[ECO "D82"]
[EventDate "1977.11.15"]
[PlyCount "40"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c5 6.Bxb8 Rxb8 7.Nf3 O-O 8.Rc1 
cxd4 9.Nxd4 e5 10.Nf3 d4 11.exd4 exd4 12.Qxd4 Qa5 13.Be2 Re8 14.Qf4 Bf5 
15.Kf1 Rbd8 16.Re1 Ne4 17.Nd5 Rxd5 18.cxd5 Qb6 19.Ng5 Bh6 20.h4 f6 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "2"]
[White "De Leon, Otto"]
[Black "Zarco Castillo, Jose"]
[Result "1/2-1/2"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "132"]

1.e4 g6 2.d4 Bg7 3.f4 d6 4.Be2 c5 5.c3 cxd4 6.cxd4 Qb6 7.e5 dxe5 8.dxe5 
Nh6 9.Nc3 O-O 10.Nd5 Qd8 11.Nf3 Be6 12.Ne3 Qa5+ 13.Qd2 Qb6 14.Qd4 Qc7 15.
O-O Nc6 16.Qc5 Rab8 17.Ng5 Bf5 18.Rd1 Qc8 19.Qa3 Rd8 20.Bd2 Nd4 21.Re1 f6 
22.exf6 exf6 23.Nxf5 gxf5 24.Nh3 Nc2 25.Qb3+ Kh8 26.Bc3 Nxa1 27.Rxa1 Re8 
28.Bf3 b6 29.g3 Qc7 30.Nf2 Re3 31.Kg2 Rbe8 32.Qd5 Rd8 33.Qb3 Rde8 34.Qd5 
Qf7 35.Qc6 Qe6 36.Qb7 Ng4 37.h3 Nxf2 38.Kxf2 h6 39.a4 Bf8 40.Bd5 Re2+ 41.
Kf1 Qd6 42.Qf7 Bg7 43.Be5 R2xe5 44.fxe5 Qxe5 45.Bf3 Qe3 46.Qh5 Re5 47.h4 
f4 48.Qg4 fxg3 49.Qxg3 f5 50.Rd1 Bf6 51.Rd6 Re8 52.Qf2 Qxf2+ 53.Kxf2 Bxh4+
54.Kg2 Bg5 55.Bh5 Rc8 56.Bd1 Rc7 57.Rd5 Rc1 58.b4 Kg7 59.Bh5 Kf6 60.Rd7 
Rc4 61.Rxa7 Rxb4 62.a5 bxa5 63.Rxa5 Be3 64.Be2 Bb6 65.Rb5 Rxb5 66.Bxb5 Kg5
1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Berry, Jonathan"]
[Black "De Leon, Otto"]
[Result "0-1"]
[WhiteElo "2315"]
[ECO "E97"]
[EventDate "1977.11.15"]
[PlyCount "73"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.d4 d6 5.e4 O-O 6.Be2 Nc6 7.O-O e5 8.d5 Ne7 
9.Bd2 Nh5 10.g3 Bh3 11.Re1 Bg4 12.h3 Bxf3 13.Bxf3 Nf6 14.Rc1 h6 15.b4 Nd7 
16.c5 a6 17.Na4 f5 18.Bc3 Nf6 19.exf5 gxf5 20.Bg2 b5 21.cxb6 cxb6 22.Qb3 
Kh8 23.Nb2 Rc8 24.Nd3 Nd7 25.f4 Ng6 26.Bd2 Ne7 27.Rxc8 Qxc8 28.fxe5 dxe5 
29.d6 Ng6 30.h4 e4 31.h5 Nge5 32.Nf4 Rf6 33.Qd5 Qb8 34.Rc1 Qxd6 35.Rc8+ 
Nf8 36.Bc3 Qxd5 37.Nxd5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Camaton, Carlos"]
[Black "Hook, William"]
[Result "0-1"]
[BlackElo "2250"]
[ECO "E77"]
[EventDate "1977.11.15"]
[PlyCount "68"]

1.e4 g6 2.d4 Bg7 3.c4 d6 4.Nc3 Nf6 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.dxe6 Bxe6 
9.Bd3 Nc6 10.f5 Bc8 11.O-O Ng4 12.Nd5 f6 13.Qe1 Nce5 14.Nxe5 Nxe5 15.Be2 
g5 16.b4 b6 17.a4 Bb7 18.bxc5 Bxd5 19.exd5 bxc5 20.Bd2 Rb8 21.Rb1 Qd7 22.
a5 Rb7 23.h4 h6 24.Bc3 Re8 25.Rxb7 Qxb7 26.hxg5 hxg5 27.Qg3 Bf8 28.Re1 Qh7
29.Rb1 Qxf5 30.Bh5 Qxb1+ 31.Kh2 Qh7 32.Qh3 Re7 33.Bb2 g4 34.Qh4 Qf5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Denker, Arnold"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1-0"]
[WhiteElo "2335"]
[BlackElo "2290"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "71"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.c3 Nf6 5.Bd3 Nbd7 6.O-O e5 7.dxe5 dxe5 8.Qe2 
O-O 9.Be3 Qe7 10.Bc2 Nh5 11.g3 b6 12.Qb5 Bb7 13.Rd1 Rad8 14.Nbd2 h6 15.a4 
a6 16.Qc4 Ndf6 17.h3 Ne8 18.a5 b5 19.Bc5 Nd6 20.Qf1 f5 21.Nh4 Qg5 22.Ndf3 
Qf6 23.exf5 gxf5 24.Qe2 e4 25.Nd4 Nf4 26.gxf4 Qxh4 27.Bb3+ Kh7 28.Qe3 Bc8 
29.Nc6 Rg8 30.Kh2 Bb7 31.Nxd8 Rxd8 32.Qg3 Bf6 33.Qxh4 Bxh4 34.Rd2 Be7 35.
Rg1 Bc8 36.Bd4 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Escondrillas, Carlos"]
[Black "Bademian Orchanian, Jose"]
[Result "0-1"]
[WhiteElo "2265"]
[BlackElo "2235"]
[ECO "A22"]
[EventDate "1977.11.15"]
[PlyCount "80"]

1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.Nc3 d5 5.cxd5 cxd5 6.Qb3 Nc6 7.d3 Nd4 8.Qd1 h6
9.Nf3 Nc6 10.O-O Be7 11.Bd2 O-O 12.Rc1 Bf5 13.Na4 e4 14.Ne1 Bd6 15.a3 Qe7 
16.b4 Rad8 17.Nc5 Rfe8 18.Nb3 Be5 19.b5 Nd4 20.Bb4 Qd7 21.a4 Bg4 22.f3 
exf3 23.Nxf3 Bxf3 24.exf3 a5 25.Bc5 Nxb3 26.Qxb3 Rc8 27.Bb6 Rxc1 28.Rxc1 
Qe6 29.Bf2 Rc8 30.Re1 Qf5 31.f4 Bd6 32.Bd4 Bc5 33.Qc3 Bb4 34.Qa1 Bxe1 35.
Qxe1 Qxd3 36.Bxf6 gxf6 37.h3 Kg7 38.Kh2 Rc2 39.g4 Qd2 40.Qg3 Rc3 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Gamarra Caceres, Carlos"]
[Black "Grimaldi, Rene"]
[Result "0-1"]
[WhiteElo "2280"]
[ECO "B94"]
[EventDate "1977.11.15"]
[PlyCount "81"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 Qa5 8.Qd2 
e6 9.O-O h6 10.Bh4 Ne5 11.Bb3 g5 12.f4 Ng6 13.fxg5 Nxh4 14.gxf6 Bd7 15.Nf3
Nxf3+ 16.Rxf3 O-O-O 17.Kh1 Bc6 18.Rd1 Rg8 19.Qf2 Rg5 20.Rg3 Qe5 21.Rxg5 
hxg5 22.Rb1 Bh6 23.Ba4 b5 24.Qb6 Bb7 25.Bb3 g4 26.Rd1 b4 27.Rd4 Be3 28.
Rc4+ Bc5 29.Ne2 Rh8 30.Rxc5+ dxc5 31.Kg1 Qxh2+ 32.Kf2 Qc7 33.Qxc7+ Kxc7 
34.Ke3 Rh6 35.e5 Rh5 36.Ng3 Rxe5+ 37.Kf4 Re1 38.Kxg4 Bxg2 39.Nh5 Bd5 40.
Ba4 Bc6 41.Bxc6 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Garcia, Gildardo"]
[Black "Chavez Chavez, Romelio"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B99"]
[EventDate "1977.11.15"]
[PlyCount "99"]

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.Be2 b5 11.Bxf6 Nxf6 12.e5 Bb7 13.exf6 Bxf3 14.Bxf3 Bxf6 
15.Bxa8 d5 16.Bc6+ Kf8 17.Nce2 g6 18.Rhf1 Kg7 19.g4 Rb8 20.g5 Bxd4 21.Nxd4
Rb6 22.Rf3 Rxc6 23.Nxc6 Qxc6 24.Rd4 Qb6 25.Rfd3 Qa5 26.Re3 Qb6 27.Red3 h6 
28.c3 hxg5 29.fxg5 Qd6 30.h4 Qe5 31.a4 Kf8 32.axb5 axb5 33.Kc2 Ke7 34.Kb3 
Qd6 35.Rd1 Qc5 36.Kc2 f5 37.gxf6+ Kxf6 38.Rf1+ Kg7 39.Rg4 Qe3 40.Rfg1 Kf7 
41.Kb3 Qd3 42.Kb4 e5 43.R1g3 Qf1 44.h5 gxh5 45.Rg7+ Kf8 46.Kc5 d4 47.Rg8+ 
Kf7 48.R3g7+ Ke6 49.Re8+ Kf6 50.Rf8+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Zarco Castillo, Jose"]
[Black "Donoso Velasco, Pedro"]
[Result "0-1"]
[BlackElo "2400"]
[ECO "E67"]
[EventDate "1977.11.15"]
[PlyCount "76"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.d4 Nbd7 7.O-O e5 8.d5 a5 
9.e4 Nc5 10.Ne1 Ne8 11.Be3 f5 12.Qd2 Nf6 13.f3 b6 14.Nd3 Bd7 15.Nf2 Nh5 
16.exf5 gxf5 17.f4 exf4 18.gxf4 Kh8 19.Nh3 h6 20.Kh1 Qf6 21.Qe2 Qf7 22.Bf3
Nf6 23.Bd4 Rae8 24.Qc2 Nfe4 25.Bxg7+ Qxg7 26.Bh5 Re7 27.Rg1 Qf6 28.Rae1 
Rg8 29.Rxg8+ Kxg8 30.Rg1+ Rg7 31.Rxg7+ Qxg7 32.Ne2 Kf8 33.Bf3 c6 34.Bxe4 
fxe4 35.Nf2 cxd5 36.cxd5 e3 37.Nd3 Qg6 38.Nec1 Bf5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "3"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Anelli, Antonio"]
[Result "1/2-1/2"]
[WhiteElo "2385"]
[BlackElo "2290"]
[ECO "B57"]
[EventDate "1977.11.15"]
[PlyCount "33"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.Bf4 
Ne5 9.Be2 Qc7 10.Nb5 Qb8 11.Nc3 a6 12.Bg3 b5 13.Qd4 Be7 14.f4 Nc6 15.Qd3 
Bb7 16.Bf3 O-O 17.O-O 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Anelli, Antonio"]
[Black "Gamarra Caceres, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2280"]
[ECO "A06"]
[EventDate "1977.11.15"]
[PlyCount "90"]

1.b3 c5 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.Bb5+ Bd7 6.Be2 Nc6 7.O-O Be7 8.c4 O-O
9.d4 cxd4 10.exd4 Qc7 11.Nbd2 Rfd8 12.Ne5 Be8 13.Ndf3 Ne4 14.Bd3 Nxe5 15.
Nxe5 f6 16.Nf3 Bh5 17.Re1 f5 18.cxd5 exd5 19.a3 Bd6 20.Rc1 Qf7 21.Be2 Bxf3
22.Bxf3 Qe7 23.Bxe4 fxe4 24.Qh5 Qf7 25.Qxf7+ Kxf7 26.f3 exf3 27.Rf1 Rac8 
28.Rxf3+ Kg6 29.h3 Rxc1+ 30.Bxc1 Rc8 31.Bb2 Rc2 32.Rf2 Rxf2 33.Kxf2 Kf5 
34.Kf3 h5 35.Bc1 g6 36.a4 a6 37.g4+ hxg4+ 38.hxg4+ Ke6 39.Bd2 Kf6 40.Ke2 
Bg3 41.Kf3 Bh4 42.Ba5 Ke6 43.Ke3 Bg5+ 44.Ke2 Kd7 45.Kd3 Kc6 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Bademian Orchanian, Jose"]
[Black "Zarco Castillo, Jose"]
[Result "0-1"]
[WhiteElo "2235"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "120"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be2 Nd7 5.h4 h5 6.Nf3 c5 7.Be3 cxd4 8.Nxd4 
Ngf6 9.Qd2 a6 10.O-O-O Nc5 11.f3 Qc7 12.Kb1 Bd7 13.Nb3 b6 14.Bd4 Bc6 15.
Rhe1 Ne6 16.Bxf6 Bxf6 17.Nd5 Bxd5 18.exd5 Nc5 19.Nxc5 bxc5 20.g3 Rb8 21.c3
Qa5 22.Rc1 O-O 23.Rc2 Rb7 24.Ka1 Rfb8 25.Rb1 Qa4 26.Rh1 Qa5 27.Rb1 Qa4 28.
Bd3 c4 29.Be4 Rb5 30.Rh1 Ra5 31.a3 Rxb2 32.Rxb2 Qxa3+ 33.Kb1 Qa1+ 34.Kc2 
Qxh1 35.Rb1 Ra2+ 36.Rb2 Qa1 37.Qc1 Qxc1+ 38.Kxc1 Ra3 39.Rb4 Rxc3+ 40.Kd2 
Bd4 41.g4 hxg4 42.fxg4 Re3 43.Rb8+ Kg7 44.Bc2 Rh3 45.h5 gxh5 46.gxh5 Rxh5 
47.Be4 Rh2+ 48.Kd1 c3 49.Ra8 Ra2 50.Bc2 Kf6 51.Bb3 Ra3 52.Kc2 e5 53.Re8 
Kf5 54.Re7 Kg6 55.Rd7 Bc5 56.Kxc3 f5 57.Kc4 f4 58.Bc2+ Kf6 59.Rd8 f3 60.
Rf8+ Kg5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Chavez Chavez, Romelio"]
[Black "Camaton, Carlos"]
[Result "0-1"]
[ECO "B40"]
[EventDate "1977.11.15"]
[PlyCount "116"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Be3 Nf6 6.Bd3 a6 7.Nb3 Be7 8.f4 d6
9.a3 b5 10.N1d2 Bb7 11.Qe2 e5 12.O-O-O Na5 13.Nxa5 Qxa5 14.g4 Nd7 15.Kb1 
Bc6 16.c3 Qc7 17.Rhf1 Qb7 18.fxe5 dxe5 19.Qf2 O-O 20.Nb3 a5 21.Nc5 Nxc5 
22.Bxc5 b4 23.Bxe7 Qxe7 24.Qb6 Ba4 25.Bc2 Bxc2+ 26.Kxc2 bxc3 27.bxc3 Rfb8 
28.Qc6 Qxa3 29.Rd7 Qb2+ 30.Kd3 Rc8 31.Rc7 Rd8+ 32.Rd7 Rac8 33.Ke3 Qxc3+ 
34.Qxc3 Rxc3+ 35.Kd2 Rxd7+ 36.Kxc3 Rd4 37.Ra1 Rxe4 38.Rxa5 f6 39.g5 fxg5 
40.Kd3 Re1 41.Kd2 Rh1 42.Rxe5 Rxh2+ 43.Ke1 h6 44.Kf1 Kf7 45.Kg1 Ra2 46.Rc5
Kg6 47.Rc7 g4 48.Rd7 h5 49.Rc7 g3 50.Rd7 h4 51.Rc7 Kh6 52.Rc6+ Kh5 53.Rc4 
g5 54.Rd4 h3 55.Rd1 Kh4 56.Rd4+ g4 57.Rd1 h2+ 58.Kh1 Kh3 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Denker, Arnold"]
[Black "Garcia, Gildardo"]
[Result "1-0"]
[WhiteElo "2335"]
[BlackElo "2340"]
[ECO "A28"]
[EventDate "1977.11.15"]
[PlyCount "109"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e4 Bc5 5.Be2 O-O 6.O-O d6 7.d3 a5 8.Be3 Nd4 
9.Bxd4 Bxd4 10.Nxd4 exd4 11.Nb5 c6 12.Nxd4 Qb6 13.Nc2 Qxb2 14.Qd2 Re8 15.
Rab1 Qe5 16.f4 Qe7 17.h3 Nd7 18.Bf3 f6 19.d4 Qd8 20.Qc3 Qc7 21.Rbe1 a4 22.
Kh1 Nf8 23.Nb4 Qa5 24.a3 Be6 25.e5 fxe5 26.fxe5 dxe5 27.Rxe5 Qc7 28.d5 Bd7
29.Rg5 Ng6 30.dxc6 bxc6 31.Rd1 Rad8 32.Nd3 Re3 33.Qd4 Rde8 34.h4 Bc8 35.h5
Qe7 36.Rg3 Rd8 37.Qxe3 Qxe3 38.Bd5+ Rxd5 39.Rxe3 Rxh5+ 40.Kg1 Bg4 41.Rb1 
h6 42.Rb6 Rg5 43.Rxc6 Nh4 44.Rc5 Bf5 45.g3 Ng6 46.Kf2 Kf7 47.Rc7+ Kf6 48.
Rc6+ Kf7 49.Ne5+ Kg8 50.Rd6 Kh7 51.c5 Bb1 52.Nxg6 Bxg6 53.Rc3 Rf5+ 54.Kg1 
Rf8 55.c6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Donoso Velasco, Pedro"]
[Black "Berry, Jonathan"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2315"]
[ECO "C60"]
[EventDate "1977.11.15"]
[PlyCount "128"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 g6 4.c3 d6 5.d4 Bd7 6.O-O Bg7 7.dxe5 dxe5 8.Be3 
Nge7 9.Bc5 b6 10.Ba3 Na5 11.Bxd7+ Qxd7 12.Qxd7+ Kxd7 13.Rd1+ Ke8 14.Nbd2 
f6 15.b4 Nb7 16.Nc4 b5 17.Na5 Nd6 18.Nd2 Bh6 19.f3 Nec8 20.Ndb3 Nb6 21.Bc1
Bxc1 22.Raxc1 Nbc4 23.Kf2 Rb8 24.Rd5 Rb6 25.Rcd1 Nxa5 26.Nxa5 Ke7 27.Rc5 
Kd7 28.a3 c6 29.c4 Rc8 30.cxb5 cxb5 31.Ke3 h5 32.g3 g5 33.Rd3 Rd8 34.f4 
exf4+ 35.gxf4 gxf4+ 36.Kxf4 Re8 37.Rd4 Rh8 38.h4 a6 39.Rdd5 Re8 40.Kf3 Re7
41.Nb3 Rc6 42.Nd4 Rb6 43.Nf5 Re5 44.Rxe5 fxe5 45.Rxe5 Nc4 46.Re7+ Kd8 47.
Rh7 Nxa3 48.Ne3 Rf6+ 49.Kg3 Nc4 50.Nd5 Rg6+ 51.Kf3 Nd2+ 52.Ke3 Nf1+ 53.Kd4
Ng3 54.Ke5 Rc6 55.Rg7 Ne2 56.Rg5 Rh6 57.Rg8+ Kd7 58.Rg7+ Kd8 59.Rg2 Nc1 
60.Rg8+ Kd7 61.Nf6+ Ke7 62.Rg7+ Kd8 63.Kf5 Ne2 64.e5 Nd4+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Hook, William"]
[Black "Escondrillas, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2250"]
[BlackElo "2265"]
[ECO "E68"]
[EventDate "1977.11.15"]
[PlyCount "49"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.Nc3 O-O 5.g3 d6 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 
9.Rb1 Re8 10.d5 c5 11.a3 Rf8 12.b4 b6 13.Qd3 h6 14.Ne1 Ne8 15.g4 Kh7 16.
Nc2 Bf6 17.Qg3 Bh4 18.Qd3 Bg5 19.Ne2 Kh8 20.Kh1 Ng7 21.Ng3 Bf4 22.Ne2 Bg5 
23.Ng3 Bf4 24.Ne2 Bg5 25.Ng3 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "Pesantes Carbajal, Carlos"]
[Black "Grimaldi, Rene"]
[Result "0-1"]
[WhiteElo "2290"]
[ECO "A88"]
[EventDate "1977.11.15"]
[PlyCount "74"]

1.d4 f5 2.c4 g6 3.Nc3 Bg7 4.Nf3 Nf6 5.g3 O-O 6.Bg2 d6 7.O-O c6 8.b4 Kh8 9.
Bb2 Be6 10.Qd3 a5 11.b5 Bg8 12.Rfc1 Nbd7 13.Nd2 e5 14.bxc6 bxc6 15.Bxc6 
Rb8 16.Nb5 e4 17.Qa3 d5 18.e3 Qb6 19.Bxd7 Nxd7 20.Rab1 dxc4 21.Bc3 Qa6 22.
Nc7 Qc6 23.Qxa5 Rfc8 24.Nb5 Ra8 25.Na7 Qe6 26.Rb7 Nf6 27.Rcb1 Nd5 28.Nf1 
g5 29.Ba1 c3 30.Qb5 f4 31.Qd7 Qg6 32.Nb5 fxe3 33.Nxe3 Nxe3 34.Qxg7+ Qxg7 
35.Rxg7 Kxg7 36.fxe3 Rxa2 37.Nxc3 Rc2 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "4"]
[White "De Leon, Otto"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2385"]
[ECO "A06"]
[EventDate "1977.11.15"]
[PlyCount "80"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 e5 4.d3 d5 5.O-O Ne7 6.e4 O-O 7.Nc3 c6 8.Kh1 Na6 
9.Re1 Qc7 10.a3 h6 11.Ng1 Rd8 12.Qe2 d4 13.Nd1 c5 14.f4 Be6 15.fxe5 c4 16.
Nf3 cxd3 17.cxd3 Nc5 18.Nf2 Nb3 19.Rb1 Rac8 20.Bd2 Nc6 21.Bh3 Qd7 22.Bxe6 
Qxe6 23.Red1 Rd7 24.Kg2 g5 25.h3 Nxe5 26.Ne1 a5 27.g4 Ng6 28.Nh1 Be5 29.
Ng3 Bxg3 30.Kxg3 Qe5+ 31.Kg2 Nh4+ 32.Kh1 Rd6 33.Qh2 Qxh2+ 34.Kxh2 Rf6 35.
Kg3 Rf1 36.Bc1 Nf3 37.Bxg5 Nxg5 38.h4 Ne6 39.Kg2 Rf4 40.Kg3 h5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Berry, Jonathan"]
[Black "Bademian Orchanian, Jose"]
[Result "1-0"]
[WhiteElo "2315"]
[BlackElo "2235"]
[ECO "C26"]
[EventDate "1977.11.15"]
[PlyCount "73"]

1.e4 e5 2.Nc3 Nf6 3.g3 Bc5 4.Bg2 d6 5.d3 Nc6 6.Na4 Bb6 7.Nxb6 axb6 8.Ne2 
O-O 9.O-O h6 10.f4 d5 11.fxe5 Nxe5 12.d4 Nc6 13.e5 Ne4 14.Nf4 b5 15.c3 Ne7
16.Qe2 Ng5 17.Qxb5 b6 18.Nxd5 Ba6 19.Nxe7+ Qxe7 20.Qb3 Bxf1 21.Bxa8 Rxa8 
22.Bxg5 Qxg5 23.Rxf1 Qe3+ 24.Rf2 Qe1+ 25.Kg2 Qe4+ 26.Kh3 Qg6 27.a3 Rd8 28.
Qc2 Qh5+ 29.Kg2 c5 30.Qe4 cxd4 31.cxd4 Qd1 32.Qb7 Qxd4 33.Qxf7+ Kh7 34.
Qf5+ Kh8 35.e6 Qe3 36.Qf7 Rd5 37.e7 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Camaton, Carlos"]
[Black "Denker, Arnold"]
[Result "1/2-1/2"]
[BlackElo "2335"]
[ECO "B00"]
[EventDate "1977.11.15"]
[PlyCount "116"]

1.e4 Nc6 2.Nf3 d6 3.d4 Nf6 4.Nc3 g6 5.h3 Bg7 6.Be2 O-O 7.Bg5 h6 8.Be3 e5 
9.d5 Ne7 10.Qd2 Kh7 11.g4 Rh8 12.O-O-O Bd7 13.g5 hxg5 14.Nxg5+ Kg8 15.f4 
exf4 16.Bxf4 Nh5 17.Bxh5 Rxh5 18.Rdf1 Be8 19.h4 Qd7 20.Kb1 a5 21.Be3 a4 
22.Bd4 Be5 23.Qf2 Nc8 24.Ne2 Qe7 25.Nf4 Rh6 26.Nd3 Bxd4 27.Qxd4 Nb6 28.e5 
dxe5 29.Nxe5 f5 30.Ne6 Nxd5 31.Qxd5 c6 32.Qc4 b5 33.Nxc6 Qd6 34.Qb4 Qxe6 
35.Ne7+ Kh7 36.Re1 Qf7 37.Qd4 Ra6 38.Qd8 Ra7 39.Nc8 Rd7 40.Qb6 Qd5 41.Qe3 
Bf7 42.b3 axb3 43.axb3 Qd4 44.Qg3 Qc5 45.h5 gxh5 46.Reg1 Rg6 47.Rxh5+ Kg7 
48.Rg5 Qc6 49.Qe5+ Qf6 50.Rxg6+ Bxg6 51.Qxb5 Rc7 52.Qe8 Rb7 53.Ne7 Rxe7 
54.Rxg6+ Qxg6 55.Qxe7+ Kh6 56.Qh4+ Kg7 57.Qd4+ Kh6 58.Qf4+ Qg5 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Escondrillas, Carlos"]
[Black "Chavez Chavez, Romelio"]
[Result "1/2-1/2"]
[WhiteElo "2265"]
[ECO "B20"]
[EventDate "1977.11.15"]
[PlyCount "54"]

1.e4 c5 2.Ne2 d6 3.g3 Nf6 4.Bg2 e6 5.d3 g6 6.O-O Bg7 7.f4 O-O 8.Nd2 Nc6 9.
h3 Qc7 10.Nf3 b6 11.Be3 Bb7 12.Qd2 Rad8 13.Rae1 Ne7 14.Kh2 d5 15.e5 d4 16.
Bg1 Nfd5 17.Ng5 Nf5 18.Bxd5 Bxd5 19.g4 Ne7 20.Ng3 f6 21.exf6 Rxf6 22.N3e4 
Rff8 23.c4 dxc3 24.Nxc3 Bxc3 25.bxc3 Rf6 26.Ne4 Rf7 27.Ng5 Rf6 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Gamarra Caceres, Carlos"]
[Black "De Leon, Otto"]
[Result "1/2-1/2"]
[WhiteElo "2280"]
[ECO "C41"]
[EventDate "1977.11.15"]
[PlyCount "88"]

1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Qxd4 Nf6 5.Nc3 Be7 6.Bg5 O-O 7.O-O-O Nc6 8.
Qd2 Be6 9.Nd4 Nxd4 10.Qxd4 Nd7 11.Bf4 Bg5 12.g3 Bf6 13.Qd2 Nb6 14.Nd5 Bg4 
15.Be2 Bxe2 16.Qxe2 Nxd5 17.Rxd5 Qe7 18.Rhd1 Rad8 19.Qd3 Rfe8 20.f3 Qf8 
21.c4 b6 22.Kc2 Rb8 23.g4 h6 24.Rg1 g5 25.Rf5 Qg7 26.Bc1 Re5 27.h4 Rbe8 
28.hxg5 hxg5 29.Be3 Kf8 30.b3 Qh6 31.Qd2 Bd8 32.Qg2 Bf6 33.Rh1 Qg7 34.Rh5 
Ke7 35.Qh3 Rxf5 36.gxf5 Rg8 37.Qg4 Ke8 38.Kd3 Kd8 39.Rh1 Bb2 40.Ke2 f6 41.
Qh5 Qe7 42.Qh7 Qe8 43.Qh5 Qf8 44.a4 Kc8 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Garcia, Gildardo"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2290"]
[ECO "C97"]
[EventDate "1977.11.15"]
[PlyCount "84"]

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 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Bd7 13.Nf1 Rfc8 14.dxe5 dxe5 15.Ng3 
c4 16.Qe2 Nb7 17.Bg5 h6 18.Be3 Bf8 19.Rad1 Nc5 20.Nh2 Rd8 21.Qf3 Qc6 22.
Ng4 Nxg4 23.hxg4 g6 24.Rd5 Be6 25.Rxe5 Nd7 26.Rd5 Bxd5 27.exd5 Qf6 28.Qe2 
Re8 29.Rd1 Qh4 30.d6 Re6 31.g5 Rae8 32.Rd4 Qxg5 33.Bxg5 Rxe2 34.Nxe2 Rxe2 
35.Bd2 Re6 36.Bf4 Re1+ 37.Kh2 Re2 38.Be4 Bg7 39.Bf3 Rxb2 40.Re4 Bxc3 41.
Re7 Nf6 42.d7 Nxd7 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Grimaldi, Rene"]
[Black "Anelli, Antonio"]
[Result "0-1"]
[BlackElo "2290"]
[ECO "B83"]
[EventDate "1977.11.15"]
[PlyCount "104"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3 Be6 8.O-O 
Be7 9.f4 exf4 10.Bxf4 O-O 11.Kh1 Ne5 12.Nd4 Qb6 13.b3 Qa5 14.Bd2 Qc5 15.
Nf5 Bxf5 16.Rxf5 Rac8 17.Be1 Rfe8 18.Bd3 g6 19.Rf1 Neg4 20.Qd2 Qe5 21.Qf4 
Qd4 22.h3 Ne5 23.Qf2 Qxf2 24.Rxf2 a6 25.Bd2 Rc6 26.Ne2 Nh5 27.Kh2 Bh4 28.
g3 Bd8 29.Bc3 Bb6 30.Bd4 Bc5 31.Raf1 Bxd4 32.Nxd4 Rc7 33.Nf3 b5 34.Nxe5 
Rxe5 35.c4 b4 36.c5 dxc5 37.Bxa6 Rxe4 38.Bc4 Ree7 39.g4 Ng7 40.Rf6 Ne8 41.
Ra6 Kg7 42.a4 bxa3 43.Rxa3 Nd6 44.Rc1 Re3 45.Ra5 Ne4 46.Rc2 Ng5 47.Bf1 
Nf3+ 48.Kh1 Rxb3 49.Raxc5 Rxc5 50.Rxc5 Rb2 51.Bg2 Rb1+ 52.Bf1 Nd2 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Zarco Castillo, Jose"]
[Black "Hook, William"]
[Result "0-1"]
[BlackElo "2250"]
[ECO "A40"]
[EventDate "1977.11.15"]
[PlyCount "139"]

1.c4 b6 2.Nc3 Bb7 3.d4 e6 4.e4 Bb4 5.Bd3 f5 6.f3 Bxc3+ 7.bxc3 fxe4 8.fxe4 
Nf6 9.Bg5 h6 10.Bh4 g5 11.Bg3 Bxe4 12.Bxe4 Nxe4 13.Qh5+ Ke7 14.Be5 Qf8 15.
Nh3 Nf6 16.Qf3 Nc6 17.O-O Nxe5 18.dxe5 Nh7 19.Qb7 Qc8 20.Qe4 Qe8 21.Rf2 c6
22.Rd1 Rc8 23.c5 b5 24.a4 bxa4 25.Rfd2 Nf8 26.Qf3 Qg6 27.Qg4 Rh7 28.Qxa4 
Rc7 29.Nf2 Rf7 30.Qd4 Rb7 31.Ne4 Rf4 32.Re2 h5 33.Qe3 h4 34.g3 hxg3 35.
hxg3 Rf7 36.Nd6 Rb1 37.Rxb1 Qxb1+ 38.Re1 Qg6 39.Nxf7 Kxf7 40.Ra1 a5 41.
Rxa5 Qb1+ 42.Kg2 Qc2+ 43.Kf1 Qf5+ 44.Ke2 Ng6 45.Ra1 Ke7 46.Rf1 Qc2+ 47.Kf3
Qf5+ 48.Kg2 Qxe5 49.Qxe5 Nxe5 50.Rd1 Ng4 51.Kf3 Nf6 52.Ke3 e5 53.c4 Ke6 
54.Rd6+ Kf5 55.Kf3 g4+ 56.Ke3 Kg5 57.Rd1 Kf5 58.Rh1 Kg6 59.Kd3 Kg5 60.Re1 
Kf5 61.Kc3 Ne4+ 62.Kb4 Nxg3 63.Rd1 Ne4 64.Kb3 g3 65.Kc2 Kf4 66.Rf1+ Ke3 
67.Re1+ Kf3 68.Kd3 Nf2+ 69.Kd2 g2 70.Re3+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "5"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Donoso Velasco, Pedro"]
[Result "1/2-1/2"]
[WhiteElo "2385"]
[BlackElo "2400"]
[ECO "B47"]
[EventDate "1977.11.15"]
[PlyCount "141"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 a6 7.Bg2 d6 8.O-O Bd7
9.Re1 Be7 10.a4 Nf6 11.Nce2 O-O 12.b3 Rac8 13.c4 Rfd8 14.Bb2 Be8 15.Qd2 
Nd7 16.Nc2 Bf6 17.Bxf6 Nxf6 18.Nc3 Qb6 19.Ne3 Nb4 20.a5 Qc5 21.Red1 b5 22.
axb6 Qxb6 23.Nb5 axb5 24.Qxb4 Qb8 25.Ra6 bxc4 26.Qxb8 Rxb8 27.bxc4 Kf8 28.
Raxd6 Rxd6 29.Rxd6 Rb1+ 30.Rd1 Rxd1+ 31.Nxd1 Nd7 32.Kf1 Ke7 33.Ke2 Kd6 34.
Kd3 Nc5+ 35.Kc3 f6 36.f3 e5 37.Bf1 Bh5 38.g4 Be8 39.Kb4 h5 40.h3 hxg4 41.
hxg4 Bd7 42.Nb2 Kc6 43.Bd3 Kb6 44.Bc2 Na6+ 45.Kc3 Nc5 46.Nd1 Be6 47.Ne3 
Kc6 48.Kb4 Kb6 49.Nf1 Na6+ 50.Kc3 Kc5 51.Bb3 Nb4 52.Ng3 g6 53.Nf1 Nc6 54.
Ne3 Nd4 55.Bd1 Bf7 56.Nd5 f5 57.Nf6 f4 58.Nd7+ Kd6 59.Nb6 Be8 60.Nd5 Ne6 
61.Kb4 Nc5 62.Bc2 Bf7 63.Nc3 Kc6 64.Ba4+ Kb6 65.Nd5+ Bxd5 66.cxd5 Nb7 67.
Be8 g5 68.d6 Nxd6 69.Ba4 Nb7 70.Bb3 Nc5 71.Bc2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Bademian Orchanian, Jose"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2235"]
[BlackElo "2385"]
[ECO "B22"]
[EventDate "1977.11.15"]
[PlyCount "64"]

1.e4 c5 2.c3 g6 3.d4 Bg7 4.dxc5 Na6 5.Be3 Qc7 6.Bxa6 bxa6 7.Ne2 Bb7 8.f3 
f5 9.exf5 gxf5 10.O-O Be5 11.f4 Bf6 12.Nd2 Nh6 13.Nf3 Rg8 14.Bd4 Ng4 15.
Qd2 O-O-O 16.Ng3 e6 17.Bxf6 Nxf6 18.Qd6 Qa5 19.Nxf5 exf5 20.Qxf6 Qb5 21.
Rf2 Bxf3 22.Rxf3 Rg6 23.Qxg6 Qxc5+ 24.Rf2 hxg6 25.Re1 d6 26.Re7 d5 27.Re5 
Rd7 28.a3 Kd8 29.Kf1 Qc4+ 30.Ke1 d4 31.cxd4 Qc1+ 32.Ke2 Rxd4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Chavez Chavez, Romelio"]
[Black "Zarco Castillo, Jose"]
[Result "1/2-1/2"]
[ECO "B00"]
[EventDate "1977.11.15"]
[PlyCount "62"]

1.e4 b6 2.d4 Bb7 3.Bd3 d6 4.f4 g6 5.Nf3 Bg7 6.O-O e6 7.c4 c5 8.d5 exd5 9.
exd5 Ne7 10.Nc3 O-O 11.f5 Nd7 12.Bf4 Nf6 13.Nb5 Ne8 14.fxg6 hxg6 15.Qd2 a6
16.Nc3 Bc8 17.Bg5 f6 18.Bf4 Bf5 19.Bxf5 Nxf5 20.g4 Ne7 21.Rae1 Ra7 22.Re6 
Rd7 23.Ne4 Nc8 24.g5 Re7 25.gxf6 Bxf6 26.Nxf6+ Nxf6 27.Ng5 Rg7 28.Ree1 Nh5
29.Ne6 Qh4 30.Nxf8 Rf7 31.Be3 Kxf8 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Denker, Arnold"]
[Black "Escondrillas, Carlos"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2265"]
[ECO "C44"]
[EventDate "1977.11.15"]
[PlyCount "96"]

1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d4 Nxe4 5.d5 Bc5 6.dxc6 Bxf2+ 7.Ke2 bxc6 8.
Qa4 f5 9.Nbd2 O-O 10.Nxe5 Qe8 11.Ndf3 d6 12.Qxc6 dxe5 13.Qxe8 Rxe8 14.Kd1 
Bb6 15.Bc4+ Be6 16.Bxe6+ Rxe6 17.Re1 Rae8 18.Be3 h6 19.Bxb6 cxb6 20.Kc2 
Kf7 21.Re2 g5 22.Rf1 Kg6 23.g3 Nc5 24.b4 Ne4 25.a4 Nd6 26.Rd1 Kf6 27.Red2 
f4 28.Rd5 Nc4 29.Kb3 Ne3 30.Rd7 R6e7 31.R7d6+ Re6 32.Rd7 R8e7 33.gxf4 exf4
34.Rd8 Re8 35.R8d7 R6e7 36.R1d6+ Re6 37.Rd8 Nf5 38.Rxe6+ Rxe6 39.Rf8+ Kg6 
40.Ra8 Re7 41.a5 bxa5 42.bxa5 g4 43.Rg8+ Ng7 44.Nh4+ Kg5 45.Ng2 h5 46.a6 
h4 47.Rf8 Nf5 48.Rg8+ Rg7 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Donoso Velasco, Pedro"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2280"]
[ECO "B38"]
[EventDate "1977.11.15"]
[PlyCount "55"]

1.Nf3 c5 2.c4 g6 3.Nc3 Bg7 4.d4 Nf6 5.e4 O-O 6.Be2 d6 7.O-O cxd4 8.Nxd4 
Nc6 9.Be3 Qa5 10.Nb3 Qd8 11.Rc1 Bd7 12.f3 Rc8 13.Qd2 Re8 14.Rfd1 Ne5 15.
Nd5 Nxd5 16.cxd5 Rxc1 17.Rxc1 Qb8 18.f4 Ng4 19.Bxg4 Bxg4 20.f5 gxf5 21.Bh6
Bxh6 22.Qxh6 Kh8 23.h3 Be2 24.Nd4 Qd8 25.Nxe2 Qb6+ 26.Kh1 Qxb2 27.Qe3 Qxa2
28.Qc3+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Garcia, Gildardo"]
[Black "Camaton, Carlos"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B85"]
[EventDate "1977.11.15"]
[PlyCount "65"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.Be3 Nf6 8.O-O 
d6 9.f4 Bd7 10.Qe1 Be7 11.Qg3 Nxd4 12.Bxd4 Bc6 13.Bf3 O-O 14.Rae1 Rfd8 15.
Rf2 Rac8 16.Rfe2 Bb5 17.Nxb5 axb5 18.a3 Qa5 19.c3 Ne8 20.Rd2 Bf8 21.Red1 
Nc7 22.f5 Kh8 23.Kh1 Re8 24.Bh5 e5 25.Be3 g6 26.Bg4 Ra8 27.Bg5 Qa4 28.Re1 
Qc4 29.Qh4 Kg8 30.Be2 Qc5 31.Rd3 d5 32.Rh3 h5 33.Bxh5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Hook, William"]
[Black "Berry, Jonathan"]
[Result "1-0"]
[WhiteElo "2250"]
[BlackElo "2315"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "143"]

1.Nf3 g6 2.d4 Bg7 3.e4 d6 4.Be2 Nd7 5.O-O e5 6.Bg5 f6 7.Bh4 h5 8.dxe5 dxe5
9.Nfd2 Nh6 10.Nc3 Nf7 11.f3 c6 12.Bf2 Bh6 13.Nb3 Qe7 14.a4 a5 15.Bd3 Kf8 
16.Qe2 Kg7 17.Kh1 b6 18.Rfd1 Rb8 19.Ba6 Bb7 20.Bxb7 Rxb7 21.Qc4 Rc8 22.Nd5
Qf8 23.Nxb6 Nxb6 24.Qa6 Rcb8 25.Nxa5 Qc8 26.Nxb7 Qxb7 27.Qxb7 Rxb7 28.a5 
Na8 29.a6 Rxb2 30.Rdb1 Rxc2 31.Bg1 Bd2 32.Rb8 Bc3 33.Ra4 Rc1 34.Rc4 Ra1 
35.Rxc3 Rxa6 36.Rc8 Nb6 37.R8xc6 Na4 38.Rc2 Rxc6 39.Rxc6 Nb2 40.Bc5 Nd3 
41.Be7 f5 42.Kg1 fxe4 43.fxe4 Nf4 44.g3 Nh3+ 45.Kg2 Nhg5 46.Rc4 Ne6 47.Kf3
Nfg5+ 48.Ke3 Kf7 49.Ba3 Kf6 50.Rc6 Nf7 51.Kd3 Ng5 52.Ke3 Nf7 53.Bc1 Nd8 
54.Rb6 Kg5 55.Kf3+ Kf6 56.Ke2 Kf7 57.Be3 Ke7 58.Kd3 Nf7 59.Kc4 Nd6+ 60.Kd5
Nc7+ 61.Kc6 Ne6 62.Rb4 Ne8 63.Rb7+ Kf6 64.Ra7 N8g7 65.Kd5 Ne8 66.h4 N8c7+ 
67.Kc6 Ne8 68.Kd7 N8g7 69.Ra6 Kf7 70.Ra2 Ne8 71.Rf2+ Nf6+ 72.Kd6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "Pesantes Carbajal, Carlos"]
[Black "Anelli, Antonio"]
[Result "0-1"]
[WhiteElo "2290"]
[BlackElo "2290"]
[ECO "E81"]
[EventDate "1977.11.15"]
[PlyCount "80"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f3 c5 6.d5 d6 7.Nge2 Na6 8.g4 Nc7 9.
Ng3 e6 10.a4 exd5 11.cxd5 Re8 12.Be2 a6 13.Bf4 Qe7 14.Qd2 Nd7 15.Kf2 Bd4+ 
16.Kg2 Rb8 17.h4 b5 18.axb5 Nxb5 19.h5 Nf8 20.Bxb5 axb5 21.Nce2 Bg7 22.Ra2
Nd7 23.b4 Ne5 24.Rc2 c4 25.Nd4 Bd7 26.Bh6 Bf6 27.Be3 Ra8 28.g5 Bg7 29.f4 
Ng4 30.Bg1 Ra3 31.Rc3 Rea8 32.hxg6 hxg6 33.Rh4 f5 34.Rxa3 Rxa3 35.Nc6 Qe8 
36.Bd4 Rd3 37.Qb2 c3 38.Qb3 Rd2+ 39.Kg1 Rxd4 40.e5 Rc4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "6"]
[White "De Leon, Otto"]
[Black "Grimaldi, Rene"]
[Result "1-0"]
[ECO "C45"]
[EventDate "1977.11.15"]
[PlyCount "74"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb6 6.Bd3 Qf6 7.O-O Nge7 8.
Nc3 d6 9.Kh1 Ne5 10.Be2 Qh4 11.Nd4 Bd7 12.Be3 O-O-O 13.Qd2 f6 14.a4 a6 15.
Nf3 Nxf3 16.Bxf3 Bxe3 17.Qxe3 g5 18.b4 Bg4 19.Bxg4+ Qxg4 20.b5 axb5 21.
axb5 Kd7 22.Rfe1 Rhe8 23.Qd3 Qe6 24.Ne2 Ra8 25.Rad1 h5 26.Nd4 Qe5 27.Nf3 
Qc5 28.e5 Ra3 29.Qh7 Rxf3 30.exd6 cxd6 31.gxf3 Qxf2 32.Qe4 Kc7 33.Re2 Qc5 
34.c4 f5 35.Qe6 g4 36.fxg4 fxg4 37.Qf7 Kd8 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Anelli, Antonio"]
[Black "De Leon, Otto"]
[Result "1-0"]
[WhiteElo "2290"]
[ECO "A43"]
[EventDate "1977.11.15"]
[PlyCount "49"]

1.d4 c5 2.d5 e6 3.e4 exd5 4.exd5 d6 5.Nc3 a6 6.a4 b6 7.Nf3 Bg4 8.Be2 Nf6 
9.O-O Be7 10.Bf4 O-O 11.Nd2 Bf5 12.Nc4 Qc7 13.Bd3 Bxd3 14.Qxd3 Rd8 15.Rfe1
h6 16.Qf3 Kf8 17.Re2 g5 18.Bg3 Kg7 19.Ne3 Bf8 20.Nf5+ Kh7 21.Nxh6 Kg7 22.
Nf5+ Kg8 23.Ne4 Nxe4 24.Rxe4 Nd7 25.Qh5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Berry, Jonathan"]
[Black "Chavez Chavez, Romelio"]
[Result "1-0"]
[WhiteElo "2315"]
[ECO "B20"]
[EventDate "1977.11.15"]
[PlyCount "125"]

1.e4 c5 2.a3 d6 3.b4 Nf6 4.d3 b6 5.Nf3 g6 6.Bb2 Bg7 7.Nbd2 Nc6 8.b5 Na5 9.
g3 O-O 10.Bg2 e5 11.O-O Bd7 12.a4 a6 13.c4 Nh5 14.Ne1 Ra7 15.Nc2 Bh6 16.
Bc3 Ng7 17.Ne3 f5 18.Nd5 f4 19.Bxa5 bxa5 20.b6 Ra8 21.Nb3 Be6 22.Nxa5 Bxd5
23.cxd5 Qxb6 24.Nc4 Qd8 25.Rb1 Bg5 26.Rb6 Be7 27.Bh3 Qc7 28.a5 h5 29.Qa4 
g5 30.Qd7 Qd8 31.Be6+ Kh8 32.Rb7 Qxd7 33.Bxd7 Rfd8 34.Bc6 Bf8 35.Rfb1 Ne8 
36.f3 Kg8 37.R7b6 Ra7 38.Rb8 Rxb8 39.Rxb8 Nf6 40.Nxd6 g4 41.fxg4 hxg4 42.
Nc4 Kg7 43.Rb7+ Rxb7 44.Bxb7 Ne8 45.Bxa6 Kf6 46.Bb7 Nd6 47.a6 Nb5 48.Bc6 
Na7 49.Bd7 fxg3 50.hxg3 Bg7 51.Bxg4 Ke7 52.Bf5 Bf6 53.Kf2 Kd8 54.d6 Ke8 
55.Kf3 Kf7 56.Kg4 Bg7 57.Bd7 Kf6 58.Kh5 Kf7 59.Kg5 Bf6+ 60.Kf5 Bg7 61.g4 
Bf6 62.g5 Bg7 63.Nxe5+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Camaton, Carlos"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[BlackElo "2290"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "93"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f3 e5 5.dxe5 Bxe5 6.f4 Bg7 7.Nf3 Nf6 8.Bd3 
Nbd7 9.O-O O-O 10.Kh1 Nc5 11.Be3 b6 12.f5 Qe8 13.Bd4 Bb7 14.Qd2 Nfxe4 15.
Bxe4 Nxe4 16.Nxe4 Qxe4 17.Bxg7 Kxg7 18.f6+ Kh8 19.Qh6 Rg8 20.Rae1 Qd5 21.
c4 Qh5 22.Qxh5 gxh5 23.Re7 h4 24.h3 Rac8 25.Rxf7 Rg3 26.Kh2 Kg8 27.Re7 
Bxf3 28.Rxf3 Rxf3 29.gxf3 Rf8 30.Rg7+ Kh8 31.Rxc7 Rxf6 32.Rxa7 Rxf3 33.b3 
Rd3 34.Ra6 Kg7 35.Rxb6 Rd2+ 36.Kg1 Kf6 37.c5 Ke5 38.Rxd6 Rxa2 39.Rd3 Rc2 
40.b4 Rb2 41.Rd7 Rxb4 42.Rxh7 Rc4 43.Rh5+ Kd4 44.Kf2 Rc3 45.Rxh4+ Kxc5 46.
Rh8 Kd5 47.Kg2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Escondrillas, Carlos"]
[Black "Garcia, Gildardo"]
[Result "0-1"]
[WhiteElo "2265"]
[BlackElo "2340"]
[ECO "B23"]
[EventDate "1977.11.15"]
[PlyCount "96"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.O-O Nge7 7.d3 O-O 8.Qe1 Nd4
9.Bb3 d5 10.Nxd4 cxd4 11.Nd1 dxe4 12.dxe4 Bd7 13.Nf2 Bb5 14.Nd3 Rc8 15.Bd2
Bc4 16.Rc1 Bxb3 17.axb3 b6 18.Rf3 f5 19.exf5 exf5 20.Qe6+ Rf7 21.Ne5 Bxe5 
22.Qxe5 Nc6 23.Qe2 Re7 24.Qc4+ Kg7 25.Qd3 Qd5 26.b4 b5 27.c3 Kf7 28.cxd4 
Nxb4 29.Qb3 Rxc1+ 30.Bxc1 Re1+ 31.Kf2 Qxb3 32.Rxb3 Rxc1 33.Rxb4 a6 34.Rb3 
Ke6 35.Ra3 Rc2+ 36.Kg3 Rc6 37.Kf3 Kd5 38.Ke3 Rc2 39.Kf3 Rxb2 40.Rxa6 Rd2 
41.Ra7 Rd3+ 42.Kf2 b4 43.Rxh7 b3 44.Ke2 Rxd4 45.Rb7 Kc4 46.Rc7+ Kb4 47.Rc6
b2 48.Ke3 Rd5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Gamarra Caceres, Carlos"]
[Black "Bademian Orchanian, Jose"]
[Result "0-1"]
[WhiteElo "2280"]
[BlackElo "2235"]
[ECO "C89"]
[EventDate "1977.11.15"]
[PlyCount "54"]

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.Be3 
Bg4 16.Qd3 Rae8 17.Nd2 Re6 18.Qf1 Qh5 19.a4 bxa4 20.Rxa4 f5 21.f4 Rfe8 22.
Nc4 Bxf4 23.gxf4 Rg6 24.Bf2 Bf3+ 25.Bg3 Rxg3+ 26.hxg3 Rxe1 27.Ne3 Qh1+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Grimaldi, Rene"]
[Black "Donoso Velasco, Pedro"]
[Result "1-0"]
[BlackElo "2400"]
[ECO "B89"]
[EventDate "1977.11.15"]
[PlyCount "57"]

1.e4 c5 2.Nf3 e6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 Nc6 6.Be3 Nf6 7.Bc4 a6 8.Qe2 
Qc7 9.Bb3 Na5 10.g4 Be7 11.g5 Nxb3 12.axb3 Nd7 13.Rg1 Ne5 14.f4 Nc6 15.f5 
Bd7 16.Qf2 Ne5 17.h4 O-O-O 18.Rg3 d5 19.exd5 Bb4 20.Bd2 exf5 21.Nxf5 Rhe8 
22.O-O-O g6 23.d6 Qc5 24.Ne7+ Kb8 25.Be3 Qa5 26.Bb6 Qa1+ 27.Nb1 Bg4 28.
Rxg4 Nxg4 29.Qf4 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Zarco Castillo, Jose"]
[Black "Denker, Arnold"]
[Result "0-1"]
[BlackElo "2335"]
[ECO "A53"]
[EventDate "1977.11.15"]
[PlyCount "112"]

1.c4 Nf6 2.Nf3 d6 3.d4 c6 4.g3 Bg4 5.Bg2 Nbd7 6.O-O e5 7.Nc3 Be7 8.a4 a5 
9.b3 O-O 10.Bb2 Bxf3 11.Bxf3 exd4 12.Qxd4 Nc5 13.Qd1 Qb6 14.Ba3 Rfe8 15.
Rb1 Na6 16.Qd3 Rad8 17.Qf5 g6 18.Qf4 Nc7 19.Rfd1 Ne6 20.Qd2 Bf8 21.e3 Qc7 
22.Qc1 Bg7 23.Rd2 Nc5 24.Qd1 Bf8 25.Qc2 Nfd7 26.e4 Bh6 27.Re2 Bg7 28.Bg2 
Ne6 29.Rd2 Nec5 30.f3 h5 31.Kh1 Ne5 32.Ne2 Bh6 33.Nf4 h4 34.Bc1 Bxf4 35.
gxf4 h3 36.fxe5 hxg2+ 37.Rxg2 dxe5 38.Bg5 Rd3 39.Qf2 Qd6 40.Rf1 Kg7 41.Be3
Ne6 42.Rb1 c5 43.Qe2 Rd8 44.h4 Rd1+ 45.Rg1 Rxb1 46.Rxb1 Qd3 47.Qe1 b6 48.
Kg2 Qc2+ 49.Kg3 Rd3 50.Rc1 Qxb3 51.Kf2 Nf4 52.Bxf4 Rxf3+ 53.Kg2 exf4 54.
Qe2 Rg3+ 55.Kf2 Rh3 56.Kg1 Qg3+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "7"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Hook, William"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2250"]
[ECO "C00"]
[EventDate "1977.11.15"]
[PlyCount "107"]

1.e4 e6 2.b3 d5 3.Bb2 dxe4 4.Nc3 Nf6 5.g4 Bd7 6.g5 Ng8 7.Nxe4 Bc6 8.Bg2 
Ne7 9.Qe2 Na6 10.O-O-O Qd7 11.d4 O-O-O 12.Nf3 Ng6 13.Ne5 Nxe5 14.dxe5 Qe8 
15.Rxd8+ Qxd8 16.f4 Nb4 17.Rd1 Qe8 18.Qf2 b6 19.a3 Nd5 20.b4 Ne7 21.c4 a6 
22.Nd6+ cxd6 23.exd6 Kb7 24.dxe7 Bxe7 25.Bxg7 Rg8 26.Bb2 Ka7 27.Bd4 Bxg2 
28.Qxg2 h6 29.Qf2 hxg5 30.Bxb6+ Kb8 31.Be3 Qc6 32.fxg5 Qxc4+ 33.Kb2 e5 34.
Rc1 Qd5 35.Qc2 Qb7 36.h4 a5 37.Qf5 Qd5 38.Bc5 Bxc5 39.Rxc5 Qd4+ 40.Kb3 
axb4 41.Rb5+ Ka8 42.Ra5+ Kb8 43.Rb5+ Ka8 44.Qf3+ e4 45.Ra5+ Kb8 46.Qf4+ 
Kc8 47.Ra8+ Kb7 48.Rxg8 Qc3+ 49.Ka4 Qxa3+ 50.Kb5 Qd3+ 51.Kc5 Qc3+ 52.Kd5 
Qd3+ 53.Ke5 b3 54.Qxf7+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Bademian Orchanian, Jose"]
[Black "Grimaldi, Rene"]
[Result "1/2-1/2"]
[WhiteElo "2235"]
[ECO "B94"]
[EventDate "1977.11.15"]
[PlyCount "71"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 Qa5 8.Qd2 
e6 9.O-O-O h6 10.Bxf6 Nxf6 11.Rhe1 Bd7 12.f4 O-O-O 13.e5 d5 14.Be2 Ne8 15.
Nb3 Qb6 16.a3 Nc7 17.Kb1 Be7 18.Bf3 Bc6 19.Ne2 g6 20.Ned4 Ba4 21.g4 Nb5 
22.Nxb5 Bxb5 23.Nd4 Bd7 24.Re3 Ba4 25.Nb3 Kb8 26.Qd4 Qxd4 27.Rxd4 Bb5 28.
Be2 Bxe2 29.Rxe2 h5 30.g5 Rc8 31.c3 Rc6 32.Kc2 Rhc8 33.Rd3 Rc4 34.Nd4 Bd8 
35.Rg2 Bb6 36.Rgd2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Camaton, Carlos"]
[Black "Escondrillas, Carlos"]
[Result "1-0"]
[BlackElo "2265"]
[ECO "C85"]
[EventDate "1977.11.15"]
[PlyCount "77"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6 7.d3 Nd7 8.Nbd2
f6 9.Nc4 O-O 10.Nh4 Nc5 11.Nf5 g6 12.Nxe7+ Qxe7 13.Bh6 Rd8 14.f4 exf4 15.
Bxf4 Be6 16.Nd2 Rd7 17.Kh1 Rf8 18.Qe1 f5 19.exf5 Rxf5 20.Bh6 Rxf1+ 21.Qxf1
Rd8 22.Re1 Qf7 23.Qg1 b6 24.Qe3 Bd7 25.Qd4 Re8 26.Rf1 Qe7 27.b4 Ne6 28.Qa1
Ng7 29.Ne4 Rf8 30.Nf6+ Kh8 31.Bxg7+ Qxg7 32.Nxd7 Qxa1 33.Rxa1 Re8 34.Nf6 
Re2 35.Rc1 c5 36.bxc5 bxc5 37.Nd7 c4 38.dxc4 a5 39.Nc5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Chavez Chavez, Romelio"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2385"]
[ECO "B34"]
[EventDate "1977.11.15"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Qb6 7.Nb3 d6 8.Bg2 a6
9.Be3 Qc7 10.a4 b6 11.O-O Be7 12.f4 Bb7 13.Qe2 Nd7 14.Rad1 O-O 15.f5 Rae8 
16.fxe6 fxe6 17.Bh3 Rxf1+ 18.Rxf1 Bf6 19.Qh5 Qd8 20.Ne2 Qe7 21.Nf4 Nd8 22.
Qf3 Bxb2 23.Rb1 Bf6 24.Nd2 Bc6 25.Nc4 b5 26.Na5 Ne5 27.Qg2 bxa4 28.Nxc6 
Nexc6 29.Qe2 a5 30.Qc4 a3 31.c3 Qf7 32.Ra1 g5 33.Ne2 Qh5 34.Rf1 Ne5 35.Qb5
Rf8 36.Kg2 g4 37.Nf4 gxh3+ 38.Nxh3 a2 39.Qxa5 Qe2+ 40.Bf2 Qxe4+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Denker, Arnold"]
[Black "Berry, Jonathan"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2315"]
[ECO "A34"]
[EventDate "1977.11.15"]
[PlyCount "49"]

1.Nf3 Nf6 2.g3 c5 3.c4 d5 4.cxd5 Nxd5 5.Bg2 Nc6 6.Nc3 Nc7 7.O-O e5 8.d3 
Be7 9.Nd2 Bd7 10.Nc4 f6 11.f4 b5 12.Ne3 exf4 13.gxf4 Rb8 14.Ned5 O-O 15.
Nxc7 Qxc7 16.a4 b4 17.Nd5 Qd8 18.Be3 Bd6 19.d4 cxd4 20.Bxd4 Nxd4 21.Qxd4 
Qa5 22.Kh1 Rbd8 23.b3 Be6 24.Rad1 Kh8 25.Qd3 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Donoso Velasco, Pedro"]
[Black "Anelli, Antonio"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2290"]
[ECO "B72"]
[EventDate "1977.11.15"]
[PlyCount "36"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.f4 
d6 9.Nb3 Be6 10.g4 Na5 11.g5 Ne8 12.Qd2 Nc4 13.Bxc4 Bxc4 14.h4 Be6 15.h5 
Bg4 16.hxg6 fxg6 17.Qh2 Bxc3+ 18.bxc3 Bh5 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Garcia, Gildardo"]
[Black "Zarco Castillo, Jose"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B08"]
[EventDate "1977.11.15"]
[PlyCount "69"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Nf6 5.Be2 O-O 6.h3 c5 7.dxc5 Qa5 8.O-O 
dxc5 9.Bf4 Rd8 10.Qc1 a6 11.Nd2 Qb6 12.Nc4 Qc6 13.Qe3 Be6 14.a4 b6 15.Ne5 
Qc8 16.Rfd1 Nbd7 17.Nf3 Qb7 18.Ng5 Nf8 19.Bf3 Rac8 20.Nxe6 fxe6 21.e5 Nd5 
22.Qe4 Qc7 23.Nxd5 exd5 24.Rxd5 Rxd5 25.Qxd5+ e6 26.Qe4 Nd7 27.Bg4 Re8 28.
Re1 c4 29.h4 b5 30.axb5 axb5 31.Rd1 Nc5 32.Qd4 Bf8 33.Bg5 Na4 34.Bf6 Nb6 
35.Bd8 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Hook, William"]
[Black "Gamarra Caceres, Carlos"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2280"]
[ECO "E87"]
[EventDate "1977.11.15"]
[PlyCount "96"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 Nh5 8.Nge2 f5 9.
Qd2 Nd7 10.O-O-O a6 11.Kb1 Nhf6 12.Nc1 Nc5 13.b4 Ncd7 14.Bd3 c5 15.dxc6 
bxc6 16.Nb3 Ne8 17.h3 Rb8 18.b5 Bb7 19.g4 axb5 20.cxb5 fxe4 21.Bxe4 Qc7 
22.Rc1 c5 23.Nd5 Bxd5 24.Bxd5+ Kh8 25.Bc6 e4 26.f4 Nb6 27.Rhd1 Rd8 28.Nxc5
Qe7 29.Nb7 Rb8 30.Bxb6 Rxb7 31.Bxb7 Qxb7 32.Rc6 Nc7 33.a4 Ra8 34.Qb4 Ne6 
35.f5 gxf5 36.gxf5 Nd8 37.Rcxd6 Nf7 38.Rc6 Ne5 39.Rcd6 e3 40.f6 Bf8 41.Qd4
e2 42.Re1 Qf3 43.Re6 Qb3+ 44.Qb2 Qd1+ 45.Rxd1 exd1=Q+ 46.Qc1 Qxa4 47.Qc3 
Qd1+ 48.Kb2 Nd3+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "8"]
[White "Pesantes Carbajal, Carlos"]
[Black "De Leon, Otto"]
[Result "0-1"]
[WhiteElo "2290"]
[ECO "E92"]
[EventDate "1977.11.15"]
[PlyCount "146"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nh5 8.g3 Nd7 9.
Nd2 Ndf6 10.b4 Bh6 11.Nf1 Bxc1 12.Rxc1 a5 13.a3 axb4 14.axb4 Bd7 15.Ne3 
Ra3 16.O-O Ng7 17.c5 Qe7 18.Nc4 Ra7 19.Qd3 Rfa8 20.cxd6 cxd6 21.Nb6 Rb8 
22.Qe3 Ra3 23.Ra1 Rb3 24.Rfb1 Rxb1+ 25.Nxb1 Nfe8 26.Ra7 Nc7 27.Na3 f5 28.
f3 fxe4 29.fxe4 Bh3 30.Qh6 Nh5 31.Nc2 Qf7 32.Ra1 Rf8 33.Qe3 Nf6 34.Qf3 
Nxe4 35.Qxf7+ Rxf7 36.Ne3 Nc3 37.Bf1 Bxf1 38.Rxf1 Na6 39.Nec4 Rxf1+ 40.
Kxf1 Nb5 41.Nc8 Nxb4 42.N4xd6 Nxd6 43.Nxd6 Nxd5 44.Nxb7 Kf7 45.Ke2 Ke6 46.
Kf3 Nf6 47.h3 Kd5 48.Nd8 Ne4 49.h4 Nd6 50.g4 h6 51.h5 g5 52.Ke3 e4 53.Kf2 
Kd4 54.Ke2 Ke5 55.Ke3 Nc4+ 56.Kf2 Kf4 57.Nf7 Kxg4 58.Nxh6+ Kxh5 59.Nf5 Kg4
60.Nd4 Nd6 61.Ne2 Nf5 62.Nc3 Kf4 63.Ne2+ Ke5 64.Kg2 g4 65.Kf1 e3 66.Nc3 
Kf4 67.Kg2 Nh4+ 68.Kf1 Kf3 69.Ne2 Nf5 70.Ng1+ Ke4 71.Ne2 Nd4 72.Ng1 Kf4 
73.Kg2 e2 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Anelli, Antonio"]
[Black "Bademian Orchanian, Jose"]
[Result "0-1"]
[WhiteElo "2290"]
[BlackElo "2235"]
[ECO "A14"]
[EventDate "1977.11.15"]
[PlyCount "100"]

1.b3 Nf6 2.Bb2 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.c4 d5 8.d3 c5 9.
e3 Nbd7 10.Qe2 Qc7 11.Nc3 Rad8 12.Rac1 Rfe8 13.Rfd1 Qb8 14.cxd5 exd5 15.d4
a6 16.Na4 c4 17.Ne5 b5 18.Nxd7 Nxd7 19.Nc3 Nf6 20.bxc4 bxc4 21.Qc2 Bc6 22.
Rb1 Qc7 23.Ba1 Qa5 24.f3 Bf8 25.e4 dxe4 26.fxe4 Qh5 27.d5 Bc5+ 28.Kh1 Bd7 
29.Rf1 Bg4 30.Na4 Bd6 31.Kg1 Be2 32.Bxf6 gxf6 33.Rf5 Qg4 34.Nb2 Rb8 35.Re1
c3 36.Qxc3 Be5 37.Rxe5 Rxe5 38.h3 Qh5 39.g4 Bxg4 40.hxg4 Qxg4 41.Qd2 f5 
42.Nd3 Rxe4 43.Ne5 Qg3 44.Nf3 Rbb4 45.Rd1 Rb8 46.Nd4 Rbe8 47.Rf1 Rh4 48.
Rxf5 Re1+ 49.Rf1 Qh2+ 50.Kf2 Rxf1+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Berry, Jonathan"]
[Black "Garcia, Gildardo"]
[Result "1/2-1/2"]
[WhiteElo "2315"]
[BlackElo "2340"]
[ECO "B26"]
[EventDate "1977.11.15"]
[PlyCount "124"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3 e5 7.f4 Nge7 8.Nh3 Nd4 
9.O-O O-O 10.Qd2 Qb6 11.Nd1 f5 12.c3 Ne6 13.b4 Bd7 14.Rb1 fxe4 15.dxe4 Qc7
16.b5 Rad8 17.a4 Bc8 18.Qa2 Kh8 19.Rb2 b6 20.Rbf2 exf4 21.gxf4 Bf6 22.Ng5 
c4 23.Qe2 d5 24.Nxe6 Bxe6 25.f5 gxf5 26.exf5 Bc8 27.Qh5 Ng8 28.Bd4 Bxd4 
29.cxd4 Nf6 30.Qh4 Rde8 31.Nc3 Bb7 32.Re2 Rxe2 33.Nxe2 Bc8 34.Bh3 Ne4 35.
Nf4 Qg7+ 36.Kh1 Qf6 37.Qxf6+ Nxf6 38.Re1 Ne4 39.Bg2 Bxf5 40.Nxd5 Nf2+ 41.
Kg1 Nd3 42.Rf1 Rf7 43.Ne3 c3 44.d5 Bg6 45.Rxf7 Bxf7 46.d6 Nc5 47.Bh3 Bb3 
48.d7 Nxd7 49.Bxd7 c2 50.Nxc2 Bxc2 51.Be6 Bxa4 52.Bc4 Kg7 53.Kf2 Kf6 54.
Ke3 Ke5 55.h3 Bc2 56.h4 Bf5 57.Bg8 h6 58.Bb3 Be6 59.Bxe6 Kxe6 60.Kd4 Kf5 
61.Kd5 Kf4 62.h5 Kg4 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Escondrillas, Carlos"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2265"]
[BlackElo "2290"]
[ECO "C60"]
[EventDate "1977.11.15"]
[PlyCount "22"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 g6 4.c3 Bg7 5.O-O Nge7 6.Re1 d6 7.d4 O-O 8.dxe5 
Nxe5 9.Nxe5 Bxe5 10.Bh6 Bg7 11.Bxg7 Kxg7 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Gamarra Caceres, Carlos"]
[Black "Chavez Chavez, Romelio"]
[Result "0-1"]
[WhiteElo "2280"]
[ECO "B99"]
[EventDate "1977.11.15"]
[PlyCount "50"]

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 Nb6 11.f5 e5 12.Nb3 Bd7 13.Be3 Nc4 14.Bxc4 Qxc4 15.Nd2
Qc7 16.g4 h6 17.h4 Bc6 18.g5 Nd7 19.Qh5 b5 20.Rh2 b4 21.Nd5 Bxd5 22.exd5 
Qa5 23.Kb1 Qxd5 24.gxh6 Nf6 25.hxg7 Rxh5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Grimaldi, Rene"]
[Black "Hook, William"]
[Result "1-0"]
[BlackElo "2250"]
[ECO "C05"]
[EventDate "1977.11.15"]
[PlyCount "29"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 f6 8.exf6 Qxf6
9.Nf3 Bd6 10.O-O O-O 11.Bg5 Qf7 12.Bh4 e5 13.Bxh7+ Kh8 14.Ng5 Qh5 15.Nf4 
1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Zarco Castillo, Jose"]
[Black "Camaton, Carlos"]
[Result "1/2-1/2"]
[ECO "B32"]
[EventDate "1977.11.15"]
[PlyCount "151"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb3 d6 6.c4 Nf6 7.Nc3 Be6 8.Be2 
Be7 9.O-O O-O 10.Be3 Rc8 11.Rc1 Na5 12.Nxa5 Qxa5 13.b3 a6 14.Qd2 Kh8 15.f3
Nd7 16.Rfd1 Rc7 17.Qb2 Rcc8 18.Nd5 Bxd5 19.Rxd5 Qc7 20.Qd2 Rfd8 21.g3 Qb8 
22.Bf1 Rc6 23.Rd1 Nf6 24.Rd3 Rdc8 25.Bh3 R8c7 26.Bg5 Ne8 27.Bxe7 Rxe7 28.
Rd5 b5 29.cxb5 axb5 30.Bf1 Rb6 31.Qb4 Qa7 32.Kh1 Qxa2 33.Rxb5 Rxb5 34.Qxb5
h5 35.Rc1 Kh7 36.Qd3 Rb7 37.Rb1 Rc7 38.Re1 g6 39.Kg1 Rc2 40.Re2 Rxe2 41.
Bxe2 Ng7 42.Qc4 Ne6 43.b4 Qb2 44.h4 Kg7 45.Kf2 Nd4 46.b5 Kh6 47.Qd3 f5 48.
Ke1 Kg7 49.Qc4 Kf6 50.Qd3 Ke7 51.Qc4 Kd8 52.Kf1 f4 53.gxf4 exf4 54.Kf2 Qd2
55.Qd3 Qb2 56.Qc4 Qd2 57.Kf1 Nc2 58.Qg8+ Kc7 59.b6+ Kb7 60.Qf7+ Kxb6 61.
Qb3+ Nb4 62.Qc4 Nc6 63.Qb5+ Kc7 64.Qc4 Kb6 65.Qb5+ Kc7 66.Qc4 Qe3 67.Qf7+ 
Kb6 68.Qxg6 Qc1+ 69.Kf2 Qc5+ 70.Kf1 Nd4 71.Bd1 Qb5+ 72.Kg2 Qb4 73.Kf1 Nb5 
74.Qg8 Qd2 75.Qd8+ Kc5 76.Be2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "De Leon, Otto"]
[Black "Donoso Velasco, Pedro"]
[Result "0-1"]
[BlackElo "2400"]
[ECO "B44"]
[EventDate "1977.11.15"]
[PlyCount "72"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.Be3 Nf6 7.Bd3 a6 8.Nd4 
Be7 9.Nxc6 bxc6 10.O-O e5 11.c4 O-O 12.Nc3 Be6 13.Qe2 a5 14.Rad1 Qc7 15.h3
g6 16.Rd2 Nh5 17.b3 Nf4 18.Qf3 Nxd3 19.Rxd3 f5 20.Qe2 a4 21.f3 f4 22.Bf2 
axb3 23.axb3 Rfb8 24.Qc2 g5 25.Rfd1 h5 26.Ne2 g4 27.hxg4 hxg4 28.g3 gxf3 
29.Rxf3 Bg4 30.Rfd3 f3 31.Nc1 c5 32.Qd2 Kg7 33.Qe3 Qd8 34.Rd5 Qh8 35.Kf1 
Qh1+ 36.Bg1 f2 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "9"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Denker, Arnold"]
[Result "1/2-1/2"]
[WhiteElo "2385"]
[BlackElo "2335"]
[ECO "B46"]
[EventDate "1977.11.15"]
[PlyCount "77"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Be3 d6 8.Bg2 
Bd7 9.Nb3 Nc8 10.a4 Be7 11.Qe2 Bf6 12.O-O Bxc3 13.bxc3 Na5 14.c4 Nxb3 15.
cxb3 Bc6 16.Rfd1 O-O 17.b4 b6 18.a5 bxa5 19.Rxa5 Qc7 20.Rda1 Rb8 21.b5 
axb5 22.cxb5 Bb7 23.R5a2 f5 24.exf5 Bxg2 25.Kxg2 Qb7+ 26.Kg1 Qxb5 27.fxe6 
Qf5 28.Bf4 Re8 29.Re1 Rb1 30.Bc1 Ne7 31.Rc2 Ng6 32.f4 Nf8 33.Qc4 Rxe6 34.
Qa2 Rb8 35.Ree2 Re8 36.Ba3 d5 37.Bxf8 Rxe2 38.Rxe2 Rxe2 39.Qxe2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Bademian Orchanian, Jose"]
[Black "De Leon, Otto"]
[Result "1-0"]
[WhiteElo "2235"]
[ECO "B08"]
[EventDate "1977.11.15"]
[PlyCount "49"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Bc4 Nf6 5.Nf3 O-O 6.Qe2 c6 7.e5 dxe5 8.dxe5 
Nd5 9.Bd2 Bg4 10.O-O-O e6 11.Rhe1 Nd7 12.Bxd5 cxd5 13.Bf4 a6 14.h3 Bxf3 
15.Qxf3 Qa5 16.Kb1 Rac8 17.h4 Rc4 18.h5 b5 19.hxg6 fxg6 20.Nxd5 Nc5 21.
Ne7+ Kh8 22.Rh1 Rcxf4 23.Nxg6+ Kg8 24.Ne7+ Kh8 25.Rxh7+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Camaton, Carlos"]
[Black "Berry, Jonathan"]
[Result "1/2-1/2"]
[BlackElo "2315"]
[ECO "B33"]
[EventDate "1977.11.15"]
[PlyCount "81"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Bxf6 
gxf6 9.Na3 f5 10.Bd3 d5 11.Nxd5 Bxa3 12.bxa3 Be6 13.O-O Rg8 14.Qh5 Bxd5 
15.exd5 Qxd5 16.f3 f4 17.Qh4 Rd8 18.Rad1 Rg7 19.Kh1 Rd6 20.Be2 Qe6 21.Rxd6
Qxd6 22.Rd1 Qe6 23.h3 Qg6 24.Bf1 Qxc2 25.Qe1 f6 26.Rc1 Qxa2 27.Qc3 Qf2 28.
Qb3 Kf8 29.Qe6 Qd2 30.Qxf6+ Rf7 31.Qh8+ Ke7 32.Rb1 Kd6 33.Qe8 Re7 34.Qf8 
Kc7 35.Qa8 Nd8 36.Bxa6 bxa6 37.Qa7+ Kd6 38.Rb6+ Nc6 39.Rxc6+ Kxc6 40.Qxe7 
Qe1+ 41.Kh2 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Chavez Chavez, Romelio"]
[Black "Grimaldi, Rene"]
[Result "1-0"]
[ECO "B79"]
[EventDate "1977.11.15"]
[PlyCount "77"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Bd7 8.Bc4 
Nc6 9.Qd2 O-O 10.O-O-O Qa5 11.g4 Rfc8 12.Bb3 Ne5 13.h4 b5 14.h5 b4 15.Nd5 
Nxd5 16.Bxd5 Nc4 17.Bxc4 Rxc4 18.Kb1 Rac8 19.hxg6 hxg6 20.Qh2 g5 21.Qh7+ 
Kf8 22.Rh5 f6 23.Rdh1 Rxd4 24.Bxd4 Be8 25.R5h2 Bf7 26.b3 d5 27.Qf5 e6 28.
Qh7 e5 29.Bb2 d4 30.Qf5 Rd8 31.f4 gxf4 32.g5 Qb6 33.Rh7 Qe6 34.Qxe6 Bxe6 
35.gxf6 Bxf6 36.R1h6 Kg8 37.Rxf6 Kxh7 38.Rxe6 Rf8 39.Rxe5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Denker, Arnold"]
[Black "Gamarra Caceres, Carlos"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2280"]
[ECO "E15"]
[EventDate "1977.11.15"]
[PlyCount "118"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 d5 6.d4 Nbd7 7.Nc3 Bb4 8.Qa4 
Bxc3 9.bxc3 O-O 10.cxd5 exd5 11.Ba3 Re8 12.e3 Ne4 13.Rac1 a5 14.Bh3 Nf8 
15.Ne5 Ba6 16.Rfe1 Qf6 17.f4 Qh6 18.Bg2 f6 19.Bxe4 dxe4 20.Qb3+ Ne6 21.Nc6
Kh8 22.Ne7 Qh3 23.Qd5 Bd3 24.c4 Rad8 25.Qf5 Qxf5 26.Nxf5 g6 27.Ne7 Rd7 28.
Nd5 Kg7 29.Nc3 Bxc4 30.Nxe4 Bxa2 31.Kf2 f5 32.Ng5 Nxg5 33.fxg5 Bd5 34.Bb2 
Kf7 35.Ra1 Re6 36.Rec1 Rc6 37.Rxc6 Bxc6 38.Bc3 Be4 39.Rc1 Ke6 40.Ke2 Rd5 
41.Rf1 Rb5 42.Kd2 Rb3 43.g4 a4 44.gxf5+ Bxf5 45.Rf4 Kd5 46.e4+ Bxe4 47.Rf7
b5 48.Rd7+ Ke6 49.Rxh7 b4 50.d5+ Kxd5 51.Bf6 c5 52.Re7 Bb1 53.Re5+ Kd6 54.
Re3 Rxe3 55.Kxe3 Kd5 56.Kd2 Kc4 57.Kc1 Bf5 58.Kb2 a3+ 59.Ka2 Kb5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Escondrillas, Carlos"]
[Black "Zarco Castillo, Jose"]
[Result "1-0"]
[WhiteElo "2265"]
[ECO "B08"]
[EventDate "1977.11.15"]
[PlyCount "99"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Nf6 5.Be2 c5 6.dxc5 Qa5 7.O-O Qxc5 8.Be3 
Qa5 9.h3 O-O 10.Qd2 Nc6 11.Nd4 Nxd4 12.Qxd4 Ng4 13.Qd3 Nxe3 14.Qxe3 Be6 
15.Nd1 b5 16.c3 Rab8 17.Qd2 Qb6 18.Ne3 Bh6 19.f4 f5 20.exf5 Rxf5 21.g3 Re5
22.Kf2 Rf8 23.Bf3 Rc5 24.Kg2 g5 25.Nd5 Qd8 26.b4 Rc4 27.fxg5 Bg7 28.Be2 
Rc8 29.Rxf8+ Qxf8 30.Rf1 Qe8 31.Bf3 Qd7 32.g4 Be5 33.Qd3 Bxd5 34.Bxd5+ e6 
35.Qf5 Re8 36.g6 Qe7 37.Qh5 h6 38.Qxh6 Qg7 39.Qh5 exd5 40.Rf7 Qh8 41.Rh7 
Qf6 42.g7 Qe6 43.Rh8+ Kxg7 44.Rxe8 Qf7 45.Qh8+ Kg6 46.Rg8+ Bg7 47.Rxg7+ 
Qxg7 48.Qxg7+ Kxg7 49.Kf3 Kf6 50.Ke3 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Garcia, Gildardo"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2340"]
[BlackElo "2385"]
[ECO "C99"]
[EventDate "1977.11.15"]
[PlyCount "69"]

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 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Bb7 14.Nf1 Rac8 15.Re2 
d5 16.Nxe5 dxe4 17.Ng3 Rfd8 18.Nf5 Bf8 19.Bg5 Qb6 20.Ng4 Qe6 21.Bxf6 gxf6 
22.Nfe3 Nc4 23.Bb3 Nxe3 24.Nxe3 Qd7 25.d5 f5 26.Rd2 f4 27.Nf1 Qf5 28.Qe2 
Bxd5 29.Rxd5 f3 30.Rxf5 fxe2 31.Ng3 Rd2 32.Re1 Bd6 33.Nxe4 Rxb2 34.Nxd6 
Rd8 35.Rxf7 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Hook, William"]
[Black "Anelli, Antonio"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2290"]
[ECO "A89"]
[EventDate "1977.11.15"]
[PlyCount "136"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Nc6 8.Bf4 Ne4 
9.Rc1 Nxc3 10.Rxc3 e5 11.Be3 h6 12.dxe5 dxe5 13.Rd3 Qf6 14.Ne1 Kh7 15.Bc5 
Re8 16.e4 f4 17.g4 Be6 18.b3 Bf8 19.Bxf8 Qxf8 20.Nc2 Rad8 21.Bf3 b6 22.Qd2
Rxd3 23.Qxd3 Rd8 24.Qe2 Nd4 25.Nxd4 Rxd4 26.Rd1 c5 27.Kf1 Qd6 28.Ke1 Qd7 
29.h3 Kg7 30.Qc2 h5 31.Qe2 Kh6 32.Kf1 a5 33.a4 Kg7 34.Kg1 Kf6 35.Kg2 hxg4 
36.hxg4 Qd6 37.Kg1 Kg7 38.Kg2 g5 39.Kg1 Bf7 40.Rxd4 cxd4 41.Qd3 Be6 42.Be2
Qb4 43.Kf1 Qa3 44.Qb1 Bf7 45.Bd1 Kf6 46.Qc2 Be6 47.f3 Bf7 48.Ke1 Qb4+ 49.
Qd2 Qxd2+ 50.Kxd2 Ke7 51.Be2 Kd6 52.Bd3 Kc5 53.Kc2 Kb4 54.Kb2 Be8 55.Bf1 
Bd7 56.Bd3 Bxa4 57.bxa4 Kxa4 58.Bb1 Kb4 59.Ba2 d3 60.Bb3 a4 61.Bd1 a3+ 62.
Ka2 Kxc4 63.Kxa3 Kc3 64.Ba4 Kd2 65.Kb4 Ke1 66.Kc4 Ke2 67.Kd5 Kxf3 68.Kxe5 
Ke3 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "10"]
[White "Pesantes Carbajal, Carlos"]
[Black "Donoso Velasco, Pedro"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2400"]
[ECO "D48"]
[EventDate "1977.11.15"]
[PlyCount "97"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.a4 b4 10.Ne4 c5 11.Nxf6+ Nxf6 12.e4 Bb7 13.e5 Nd7 14.O-O cxd4 15.Re1 Nc5
16.Bf1 d3 17.Be3 Rc8 18.Ng5 Be7 19.Qh5 Bxg5 20.Bxg5 Qd5 21.Rad1 O-O 22.Be7
Rfe8 23.Bxc5 Rxc5 24.Rxd3 Qc6 25.Rh3 h6 26.Rg3 f5 27.Qxh6 Qc7 28.Qh5 Rc8 
29.Rh3 Rxe5 30.Qh7+ Kf8 31.Rd1 Rd5 32.Rxd5 Bxd5 33.Rg3 Qf7 34.Qh8+ Qg8 35.
Qh4 a5 36.h3 Kf7 37.Be2 Qd8 38.Qh7 Qf6 39.Bh5+ Ke7 40.Rxg7+ Kd6 41.Rd7+ 
Kc6 42.Rb7 Kc5 43.Rc7+ Rxc7 44.Qxc7+ Kd4 45.Qxa5 Qe7 46.Qb6+ Kc4 47.Qe3 
Be4 48.b3+ Kd5 49.f3 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Anelli, Antonio"]
[Black "Chavez Chavez, Romelio"]
[Result "1-0"]
[WhiteElo "2290"]
[ECO "A56"]
[EventDate "1977.11.15"]
[PlyCount "139"]

1.Nf3 Nf6 2.c4 e6 3.d4 c5 4.e3 g6 5.Nc3 d5 6.dxc5 Bxc5 7.cxd5 exd5 8.Be2 
O-O 9.O-O Be6 10.b3 Nc6 11.Bb2 a6 12.Rc1 Be7 13.Nd4 Qd6 14.Nxc6 bxc6 15.
Na4 Nd7 16.Bd4 Rfc8 17.Nc5 Nxc5 18.Bxc5 Qd8 19.Qd4 Bf6 20.Qa4 a5 21.Bd4 
Bd7 22.Bxf6 Qxf6 23.Rc5 Qd8 24.Qd4 Qe7 25.Rfc1 f5 26.g3 Qe4 27.Qf6 a4 28.
R5c4 Qe8 29.b4 Qf8 30.Qxf8+ Kxf8 31.Rh4 Kg7 32.a3 g5 33.Rd4 Kf6 34.Kg2 h6 
35.Kf1 Ke6 36.Ke1 Kd6 37.Rc5 Ra7 38.Kd2 Re8 39.Bf3 Re5 40.Rc1 g4 41.Be2 
Re4 42.Bd3 Re8 43.Rf4 Re5 44.Rh1 c5 45.bxc5+ Kxc5 46.Rc1+ Kd6 47.Rb4 Re7 
48.Rb6+ Ke5 49.Rxh6 Rb7 50.Rb1 Be6 51.h4 Rxb1 52.Bxb1 Rb7 53.Bc2 Rb2 54.
Kc1 Ra2 55.Kb1 Rxa3 56.Kb2 Rb3+ 57.Bxb3 axb3 58.Kxb3 Bc8 59.Rb6 Ke4 60.
Rb4+ Ke5 61.Rd4 Be6 62.Kc3 Bc8 63.h5 Kf6 64.Rxd5 Kg5 65.Rd8 Bb7 66.Rh8 Bd5
67.Kd4 Bf7 68.Ke5 Bc4 69.h6 Bd3 70.Rd8 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Berry, Jonathan"]
[Black "Escondrillas, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2315"]
[BlackElo "2265"]
[ECO "C26"]
[EventDate "1977.11.15"]
[PlyCount "36"]

1.e4 e5 2.Nc3 Nf6 3.g3 d5 4.exd5 Nxd5 5.Bg2 Nxc3 6.bxc3 Bd6 7.Ne2 O-O 8.
O-O Nd7 9.f4 Rb8 10.d4 exd4 11.cxd4 Re8 12.c4 Nf6 13.Nc3 c6 14.f5 Bb4 15.
Qd3 Bd7 16.Bg5 Qa5 17.Rac1 Be7 18.Bd2 Qa6 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Donoso Velasco, Pedro"]
[Black "Bademian Orchanian, Jose"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2235"]
[ECO "C81"]
[EventDate "1977.11.15"]
[PlyCount "129"]

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.Rd1 O-O 11.c4 bxc4 12.Bxc4 Bc5 13.Be3 Bxe3 14.Qxe3 Qb8 
15.Bb3 Qb6 16.Qxb6 cxb6 17.Nbd2 Nc5 18.Bc2 Nb4 19.Bb1 Nbd3 20.Bxd3 Nxd3 
21.Rab1 Rac8 22.Nb3 Nc5 23.Nfd4 Nxb3 24.axb3 Rc5 25.f4 g6 26.Ra1 a5 27.Kf2
Rfc8 28.Ke3 Kf8 29.Kd2 h5 30.Rdc1 Bd7 31.h3 Ke7 32.Rc3 R8c7 33.Rac1 Rc8 
34.Rg1 Rh8 35.Re3 Rhc8 36.g4 hxg4 37.hxg4 Rh8 38.f5 Rh2+ 39.Re2 Rxe2+ 40.
Kxe2 Rc8 41.Rh1 gxf5 42.gxf5 Bxf5 43.Nxf5+ Ke6 44.Nd4+ Kxe5 45.Ke3 Rg8 46.
Rh5+ Kd6 47.Rh6+ Rg6 48.Rh7 Rf6 49.Rh8 Kc5 50.Nc2 Rg6 51.Rc8+ Kd6 52.Nd4 
Rg3+ 53.Kf4 Rd3 54.Nb5+ Kd7 55.Rc7+ Ke6 56.Rb7 Rd2 57.Rxb6+ Kd7 58.Ke5 
Rxb2 59.Nd4 Ra2 60.Rb7+ Ke8 61.Nf5 a4 62.Kd6 f6 63.Nh6 Kf8 64.Rf7+ Ke8 65.
Rg7 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Gamarra Caceres, Carlos"]
[Black "Garcia, Gildardo"]
[Result "0-1"]
[WhiteElo "2280"]
[BlackElo "2340"]
[ECO "B67"]
[EventDate "1977.11.15"]
[PlyCount "110"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Bd7 8.O-O-O
a6 9.f4 b5 10.Nf3 b4 11.Bxf6 gxf6 12.Ne2 Qb6 13.Kb1 a5 14.f5 e5 15.Ng3 h5 
16.Be2 Rc8 17.Nf1 Qc5 18.Qd5 Nb8 19.Qxc5 Rxc5 20.N1d2 a4 21.Ne1 d5 22.Nd3 
Ra5 23.Rhf1 Nc6 24.exd5 Nd4 25.Bf3 Nxf3 26.Rxf3 Rxd5 27.Ne4 Be7 28.Ndf2 
Rxd1+ 29.Nxd1 h4 30.Ndf2 Rh5 31.Ng4 Kd8 32.Ngxf6 Rxf5 33.Nxd7 Rxf3 34.gxf3
Kxd7 35.Kc1 f5 36.Nf2 Kc6 37.Kd2 Kd5 38.h3 Bc5 39.Nd3 Bd6 40.c3 bxc3+ 41.
bxc3 e4 42.fxe4+ fxe4 43.Ne1 Bf4+ 44.Kc2 Kc4 45.Ng2 Bg5 46.Ne1 Bf6 47.Ng2 
Bg5 48.Ne1 e3 49.Nd3 e2 50.Ne5+ Kd5 51.Nf3 Ke4 52.Ne1 Ke3 53.Nd3 Be7 54.c4
Bb4 55.c5 Bxc5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Grimaldi, Rene"]
[Black "Denker, Arnold"]
[Result "1-0"]
[BlackElo "2335"]
[ECO "C06"]
[EventDate "1977.11.15"]
[PlyCount "111"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 cxd4 7.cxd4 Nc6 8.Ne2 
Qb6 9.Nf3 Bb4+ 10.Kf1 Be7 11.h4 Nf8 12.Rh3 Bd7 13.a3 Na5 14.Nc3 Nb3 15.Rb1
Nxc1 16.Qxc1 Rc8 17.Rg3 Rg8 18.Kg1 h6 19.h5 Qa5 20.Qd2 a6 21.Ne1 Qb6 22.
Nc2 f5 23.exf6 Bxf6 24.Re1 Kd8 25.Ne2 Qxb2 26.Qf4 Qb6 27.Ne3 Qc7 28.Qf3 
Be8 29.Nxd5 Bc6 30.Qxf6+ gxf6 31.Nxc7 Rxg3 32.Nxe6+ Nxe6 33.fxg3 Bd5 34.
Bf5 Rc6 35.Bxe6 Rxe6 36.Kf2 Re4 37.Rd1 Bc4 38.Nf4 b5 39.Kf3 Re7 40.Rc1 Kd7
41.Rc3 Re1 42.Kg4 Ke7 43.Kf5 Kf7 44.a4 Rf1 45.axb5 axb5 46.Ra3 Be6+ 47.Ke4
Re1+ 48.Kf3 Bc4 49.d5 b4 50.Ra4 b3 51.Rb4 Ke7 52.Kg4 Kd6 53.Kf5 Kc5 54.
Rxb3 Bxb3 55.Nd3+ Kxd5 56.Nxe1 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Zarco Castillo, Jose"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[BlackElo "2290"]
[ECO "A38"]
[EventDate "1977.11.15"]
[PlyCount "115"]

1.c4 g6 2.g3 Bg7 3.Bg2 c5 4.Nc3 Nc6 5.Nf3 d6 6.d3 Nf6 7.O-O O-O 8.h3 Rb8 
9.e4 a6 10.a4 Bd7 11.Be3 e5 12.Qd2 Nd4 13.Bxd4 exd4 14.Ne2 Qc7 15.b4 b6 
16.b5 Rbe8 17.Nh2 a5 18.f4 Bc8 19.g4 Nd7 20.g5 f5 21.exf5 gxf5 22.Ng3 Re3 
23.Nh5 Rfe8 24.Nxg7 Kxg7 25.Rf2 Nf8 26.Nf1 R3e7 27.Ng3 Kh8 28.Nh5 Nd7 29.
Bc6 Re3 30.Kh2 R8e7 31.Rg1 Nf8 32.Nf6 Be6 33.Qd1 Ng6 34.Bd5 Qb8 35.Rg3 Qf8
36.Qa1 Bxd5 37.Nxd5 Re1 38.Qb2 Qa8 39.Rg1 Rxg1 40.Kxg1 Re1+ 41.Rf1 Qe8 42.
Qf2 Re2 43.Qg3 Qe6 44.h4 Ne7 45.Nxb6 Re3 46.Qg2 Rxd3 47.h5 Kg7 48.Na8 Qe3+
49.Rf2 Rd2 50.Nc7 Rb2 51.Ne8+ Kf7 52.Nxd6+ Ke6 53.Nb7 d3 54.Qf3 Qd4 55.
Nd8+ Kd7 56.Nc6 Nxc6 57.Qxc6+ Kd8 58.Qb6+ 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "De Leon, Otto"]
[Black "Hook, William"]
[Result "1-0"]
[BlackElo "2250"]
[ECO "C18"]
[EventDate "1977.11.15"]
[PlyCount "81"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qa5 7.Bd2 Qa4 8.Qg4 
Kf8 9.Qd1 b6 10.f4 Ne7 11.Nf3 h5 12.Bd3 Ba6 13.O-O Bxd3 14.cxd3 Qxd1 15.
Raxd1 Na6 16.dxc5 Nxc5 17.Be3 Na4 18.c4 Nf5 19.Bf2 Rc8 20.Rc1 dxc4 21.dxc4
Ke7 22.h3 Rhd8 23.g4 hxg4 24.hxg4 Nh6 25.Bh4+ f6 26.g5 Ng8 27.gxf6+ gxf6 
28.exf6+ Nxf6 29.Ne5 Rg8+ 30.Kf2 Nc5 31.Kf3 Rcf8 32.Rcd1 Ke8 33.Rd6 Rg7 
34.Rc6 Kd8 35.Rd1+ Nd7 36.Ng4 Rxg4 37.Bxf6+ Rxf6 38.Kxg4 Rf7 39.Rxe6 Kc7 
40.Rde1 Rg7+ 41.Kf3 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "11"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Camaton, Carlos"]
[Result "1-0"]
[WhiteElo "2385"]
[ECO "B45"]
[EventDate "1977.11.15"]
[PlyCount "65"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.Bf4 Nxe4 8.
Qf3 d5 9.Nc7+ Kf8 10.O-O-O Bxc3 11.bxc3 g5 12.Qxe4 Qxc7 13.Bxc7 dxe4 14.h4
g4 15.Bb5 Kg7 16.Rhe1 a6 17.Bxc6 bxc6 18.Rxe4 h5 19.Rc4 Kg6 20.f3 Ra7 21.
Rxc6 Bb7 22.Rc5 f6 23.Bb6 Raa8 24.Rc7 Bc8 25.fxg4 hxg4 26.c4 Re8 27.h5+ 
Kf5 28.Rf1+ Ke5 29.Rc5+ Kd6 30.Rd1+ Ke7 31.Rc7+ Kf8 32.Rf1 f5 33.h6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Camaton, Carlos"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[BlackElo "2280"]
[ECO "B33"]
[EventDate "1977.11.15"]
[PlyCount "79"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Bxf6 
gxf6 9.Na3 b5 10.Nd5 f5 11.exf5 Bxf5 12.Bd3 e4 13.Qe2 Nd4 14.Qe3 Bg7 15.c3
O-O 16.Bc2 Nc6 17.O-O Re8 18.f4 Rc8 19.Bb3 b4 20.Nc4 bxc3 21.bxc3 Na5 22.
Ncb6 Rc5 23.Rac1 Re6 24.Rfd1 Qh4 25.Rd2 Rh6 26.g3 Nxb3 27.gxh4 Rg6+ 28.Kh1
Nxc1 29.Ne7+ Kf8 30.Nxg6+ hxg6 31.Rxd6 Rxc3 32.Qd2 Kg8 33.Nd5 e3 34.Nxe3 
Be4+ 35.Kg1 Nd3 36.Nd1 Ra3 37.Qe3 f5 38.Nf2 Rxa2 39.Nxd3 Ra3 40.Rxg6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Chavez Chavez, Romelio"]
[Black "De Leon, Otto"]
[Result "1-0"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "97"]

1.e4 g6 2.d4 Bg7 3.f4 d6 4.Nf3 Nf6 5.Bd3 O-O 6.e5 Nd5 7.O-O Bg4 8.h3 Bc8 
9.a3 e6 10.c4 Ne7 11.Nc3 c5 12.Ne4 dxe5 13.dxe5 Nd7 14.Be3 Qc7 15.Qe2 b6 
16.Nd6 Bb7 17.Nxb7 Qxb7 18.Ng5 Rad8 19.g4 Nc6 20.Ne4 f5 21.Nd6 Qb8 22.gxf5
gxf5 23.Bc2 Ne7 24.Qg2 Nc8 25.Nb7 Rde8 26.Rad1 Qc7 27.Ba4 Re7 28.Nd6 a6 
29.Qg5 Nb8 30.Rf2 Kh8 31.Rg2 Na7 32.Qh5 Nbc6 33.Kh2 Nc8 34.b4 cxb4 35.axb4
N8a7 36.b5 axb5 37.cxb5 Nd8 38.Rc2 Qb8 39.Bb3 Nb7 40.Bxb6 Nxd6 41.exd6 Rd7
42.Bc7 Qxb5 43.Bxe6 Qa4 44.Rf2 Qb5 45.Rd5 Qc6 46.Bxf5 Bf6 47.Bxd7 Qxd7 48.
Qf5 Qc6 49.Rc2 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Denker, Arnold"]
[Black "Anelli, Antonio"]
[Result "1-0"]
[WhiteElo "2335"]
[BlackElo "2290"]
[ECO "A80"]
[EventDate "1977.11.15"]
[PlyCount "77"]

1.d4 f5 2.Nc3 Nf6 3.Bg5 d5 4.e3 e6 5.Nf3 Be7 6.h4 Nbd7 7.Ne2 Ne4 8.Nf4 
Ndf6 9.Ne5 O-O 10.Bd3 c5 11.c3 Qb6 12.Bxe4 fxe4 13.Rb1 cxd4 14.cxd4 Qa5+ 
15.Kf1 Qxa2 16.h5 Qa6+ 17.Kg1 h6 18.Nfg6 Re8 19.Nxe7+ Rxe7 20.Bh4 Rc7 21.
Rh3 Nd7 22.Bd8 Nxe5 23.Bxc7 Nd3 24.Rg3 Qc6 25.Be5 Nxe5 26.dxe5 Qc7 27.Rc1 
Qe7 28.Qa4 Qf7 29.Qb4 Bd7 30.Qxb7 Rf8 31.Rc7 Qxf2+ 32.Kh2 Qf5 33.Rxd7 
Qxh5+ 34.Rh3 Qxe5+ 35.Kg1 Rf5 36.Rd8+ Kh7 37.Qb8 Qf6 38.Rh8+ Kg6 39.Qe8+ 
1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Escondrillas, Carlos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2265"]
[BlackElo "2385"]
[ECO "B23"]
[EventDate "1977.11.15"]
[PlyCount "58"]

1.e4 c5 2.Nc3 g6 3.f4 Bg7 4.Nf3 Nc6 5.Be2 e6 6.O-O Nge7 7.Qe1 d5 8.e5 h5 
9.d3 Nf5 10.Qf2 Bf8 11.Bd1 Be7 12.g3 b6 13.Ne2 Ba6 14.a3 Qc7 15.Bd2 d4 16.
b3 f6 17.exf6 Bxf6 18.Rb1 Nce7 19.Ne1 Bb7 20.Nc1 Ne3 21.Bxe3 dxe3 22.Qe2 
Nf5 23.Na2 h4 24.g4 Ng3 25.hxg3 hxg3 26.Rf3 Rh2 27.Qxh2 gxh2+ 28.Kxh2 Bxf3
29.Bxf3 Qxf4+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Garcia, Gildardo"]
[Black "Grimaldi, Rene"]
[Result "0-1"]
[WhiteElo "2340"]
[ECO "B23"]
[EventDate "1977.11.15"]
[PlyCount "116"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Be2 d6 6.O-O e6 7.d3 Nge7 8.Qe1 Rb8 
9.Kh1 b5 10.Nd1 Nd4 11.Nxd4 cxd4 12.Bd2 O-O 13.c3 Nc6 14.Rc1 Bd7 15.Bf3 
Rc8 16.g4 f5 17.exf5 exf5 18.Qg3 dxc3 19.Bxc3 Nd4 20.Ne3 Nxf3 21.Bxg7 Kxg7
22.Qxf3 fxg4 23.Qe4 Qf6 24.Rxc8 Rxc8 25.Nd5 Qh4 26.Qd4+ Kh6 27.Qf6 Qxf6 
28.Nxf6 Bf5 29.Rf2 Kg7 30.Ne4 d5 31.Nd6 Rc1+ 32.Kg2 Bxd3 33.Rd2 Be4+ 34.
Kg3 Rg1+ 35.Kh4 Bf3 36.Nxb5 h6 37.Nd4 Bd1 38.Ne2 Bxe2 39.Rxe2 Kf6 40.Rc2 
Kf5 41.Rd2 Ke4 42.Re2+ Kxf4 43.Re7 d4 44.Rf7+ Ke3 45.Re7+ Kd2 46.Rxa7 d3 
47.b4 Kc3 48.Rc7+ Kxb4 49.Rd7 Kc3 50.Rc7+ Kb2 51.Rd7 Kc2 52.Rc7+ Kd1 53.
Rb7 Rg2 54.a4 d2 55.a5 Ke1 56.Rb2 g5+ 57.Kh5 Rxh2+ 58.Kxg4 Rh4+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Hook, William"]
[Black "Donoso Velasco, Pedro"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "2400"]
[ECO "D10"]
[EventDate "1977.11.15"]
[PlyCount "60"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Bg5 dxc4 5.e3 b5 6.Bxf6 exf6 7.a4 Qb6 8.d5 b4 
9.Nb1 Ba6 10.Qf3 Nd7 11.Qe4+ Ne5 12.dxc6 Bc5 13.Nf3 O-O 14.Nxe5 fxe5 15.a5
Qc7 16.Nd2 Bb5 17.Bxc4 Bxc6 18.Bd5 Bxd5 19.Qxd5 b3 20.Rc1 Rac8 21.Nxb3 
Bb4+ 22.Ke2 Qe7 23.Rhd1 Rcd8 24.Qc6 Bd6 25.Rc2 Qe6 26.Nc5 Qg4+ 27.Qf3 Qb4 
28.Nb7 e4 29.Qf5 Qxb7 30.Rd5 Qa6+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Pesantes Carbajal, Carlos"]
[Black "Bademian Orchanian, Jose"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2235"]
[ECO "A77"]
[EventDate "1977.11.15"]
[PlyCount "65"]

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 a6 11.a4 b6 12.Re1 Ra7 13.f3 Rae7 14.Nc4 Rf8 15.Bg5 h6 
16.Bf4 Ne8 17.Qd2 g5 18.Bg3 f5 19.exf5 Bxf5 20.Bd3 Bxd3 21.Qxd3 Rff7 22.
Re6 Rxe6 23.dxe6 Bd4+ 24.Kh1 Rf6 25.Re1 Nc6 26.Nd5 b5 27.e7 Qd7 28.Nxf6+ 
Bxf6 29.Qg6+ Bg7 30.Nxd6 Nxe7 31.Qf7+ Kh7 32.Nxe8 Qd4 33.Be5 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "12"]
[White "Zarco Castillo, Jose"]
[Black "Berry, Jonathan"]
[Result "0-1"]
[BlackElo "2315"]
[ECO "A22"]
[EventDate "1977.11.15"]
[PlyCount "83"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.a3 Bxc3 6.bxc3 Re8 7.Nf3 e4 8.Nd4 
c5 9.Nc2 d5 10.cxd5 Qxd5 11.Ne3 Qh5 12.Rb1 Nc6 13.f3 Bh3 14.O-O Bxg2 15.
Kxg2 b6 16.f4 Rad8 17.Re1 Nd5 18.Nxd5 Qxd5 19.Qb3 Qxb3 20.Rxb3 Na5 21.Rb2 
Nc4 22.Ra2 Re6 23.e3 Red6 24.Re2 Na5 25.Re1 Nb3 26.d4 exd3 27.Bd2 c4 28.e4
Nxd2 29.Rxd2 Rc6 30.e5 g6 31.g4 Rd5 32.h4 Kf8 33.Kf3 Ra5 34.Ra2 Rb5 35.Ke4
Rb3 36.Rc1 b5 37.f5 Ra6 38.fxg6 hxg6 39.Rf2 Re6 40.h5 gxh5 41.gxh5 Rxa3 
42.Rcf1 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Anelli, Antonio"]
[Black "Garcia, Gildardo"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2340"]
[ECO "E19"]
[EventDate "1977.11.15"]
[PlyCount "116"]

1.Nf3 Nf6 2.d4 e6 3.c4 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 d6 10.Qd3 c6 11.Rd1 Nd7 12.e4 Qc7 13.Be3 c5 14.d5 exd5 15.exd5
Bf6 16.Qc2 Rfe8 17.Bg5 Bxg5 18.Nxg5 Nf6 19.Re1 Re7 20.Ne4 Nxe4 21.Bxe4 g6 
22.Bd3 Rae8 23.Qd2 Bc8 24.f4 Qd8 25.Kf2 Rxe1 26.Rxe1 Rxe1 27.Qxe1 Kg7 28.
Qc3+ Qf6 29.Qxf6+ Kxf6 30.Kf3 h5 31.Ke3 Bd7 32.Kf3 Bh3 33.b3 Bd7 34.Ke3 
Bh3 35.Be4 a6 36.Bd3 Bd7 37.Bc2 b5 38.a3 bxc4 39.bxc4 Bh3 40.Bd3 Ke7 41.
Kd2 Kd7 42.Kc3 Kc7 43.Bc2 Kd8 44.Ba4 Bg4 45.Kd2 Ke7 46.Ke3 Bh3 47.Kf2 Kf6 
48.Be8 Bf5 49.Ke3 Bb1 50.Bc6 Ba2 51.Kd3 g5 52.Bd7 gxf4 53.gxf4 Bb1+ 54.Ke3
Ba2 55.Kd3 h4 56.Bc8 Bb1+ 57.Ke3 a5 58.Kf3 Bd3 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Bademian Orchanian, Jose"]
[Black "Hook, William"]
[Result "0-1"]
[WhiteElo "2235"]
[BlackElo "2250"]
[ECO "C02"]
[EventDate "1977.11.15"]
[PlyCount "80"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7 6.Be2 Nc6 7.O-O f6 8.dxc5 Bxc5 
9.b4 Be7 10.Bf4 Nh6 11.Bd3 Nf7 12.Re1 fxe5 13.Nxe5 Ncxe5 14.Bxe5 Nxe5 15.
Rxe5 g6 16.Qe2 Rc8 17.a3 O-O 18.Nd2 Rxc3 19.Nf3 Rxf3 20.Qxf3 Qd4 21.Rae1 
Rxd3 22.Qe2 Rd2 23.Qf3 Bd6 24.R5e3 Qf4 25.Qxf4 Bxf4 26.Rc3 Bb8 27.h3 e5 
28.f3 Kf7 29.Kf1 a6 30.Kg1 Ba7+ 31.Kh2 Bf2 32.Rec1 Bb6 33.Re1 Ke6 34.Kh1 
Bc6 35.Rb3 Bf2 36.Rf1 Bg3 37.Rc3 d4 38.Rb3 Bd5 39.Rbb1 e4 40.fxe4 Bxe4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Berry, Jonathan"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1-0"]
[WhiteElo "2315"]
[BlackElo "2290"]
[ECO "C34"]
[EventDate "1977.11.15"]
[PlyCount "119"]

1.e4 e5 2.f4 exf4 3.Nf3 Nf6 4.Nc3 d5 5.e5 Nh5 6.d4 g6 7.Be2 Bg4 8.O-O Nc6 
9.h3 Be6 10.Ne1 Ng3 11.Rxf4 Nxe2+ 12.Nxe2 Be7 13.c3 Qd7 14.Nd3 b6 15.Rf1 
g5 16.Kh2 h5 17.b4 O-O-O 18.a4 a5 19.b5 Nb8 20.Ba3 Bxa3 21.Rxa3 h4 22.Ra2 
Rdg8 23.Qc1 Rh7 24.Ng1 Bf5 25.Qe3 g4 26.Nf4 gxh3 27.Ngxh3 Rg3 28.Rf3 Rxf3 
29.Qxf3 Be4 30.Qe3 Rg7 31.Nh5 Rxg2+ 32.Rxg2 Bxg2 33.Nf6 Qxh3+ 34.Qxh3+ 
Bxh3 35.Kxh3 c6 36.bxc6 Kc7 37.Nxd5+ Kxc6 38.c4 Kb7 39.Ne7 Kc7 40.Kxh4 Kd7
41.Nf5 Ke6 42.Kg5 Na6 43.Kf4 Nb4 44.Ke4 Kd7 45.Ne3 Kc6 46.Kf5 Kd7 47.Kf6 
Ke8 48.Nf5 Nc6 49.d5 Nd8 50.Nd6+ Kf8 51.Nc8 Nb7 52.Nxb6 Nc5 53.d6 Ne4+ 54.
Kf5 Nc5 55.Nd5 Ke8 56.Nc3 Kd7 57.Ne4 Nxa4 58.Kf6 Ke8 59.d7+ Kxd7 60.Kxf7 
1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Donoso Velasco, Pedro"]
[Black "Chavez Chavez, Romelio"]
[Result "1-0"]
[WhiteElo "2400"]
[ECO "B08"]
[EventDate "1977.11.15"]
[PlyCount "105"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.Be2 O-O 6.O-O e5 7.dxe5 dxe5 8.Qxd8 
Rxd8 9.Bg5 Re8 10.Rad1 Bg4 11.h3 Bxf3 12.Bxf3 c6 13.Rd6 Nfd7 14.Rfd1 Nf8 
15.Rd8 Na6 16.Rxe8 Rxe8 17.Be3 b6 18.Be2 Nb8 19.Bc4 Bf6 20.a4 Rd8 21.Rb1 
Kg7 22.g3 Be7 23.b4 Nfd7 24.Ne2 f5 25.exf5 gxf5 26.f4 Bf6 27.Rd1 Re8 28.
Kf2 h5 29.Bd3 e4 30.Bc4 Be7 31.c3 Nf8 32.a5 b5 33.Bb3 a6 34.Nd4 Kf6 35.Nc2
Nbd7 36.c4 Rc8 37.c5 Kg6 38.Bd4 Nf6 39.Ne3 N6d7 40.Ke2 Nf6 41.Be5 Ne8 42.
g4 hxg4 43.hxg4 fxg4 44.Nxg4 Nf6 45.Nxf6 Bxf6 46.Rd6 Nh7 47.Bc2 Kf5 48.Ke3
Bxe5 49.Bxe4+ Kg4 50.fxe5 Ng5 51.Bxc6 Rf8 52.Bd7+ Kg3 53.Rf6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Gamarra Caceres, Carlos"]
[Black "Escondrillas, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2280"]
[BlackElo "2265"]
[ECO "E93"]
[EventDate "1977.11.15"]
[PlyCount "32"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7 8.Bg5 h6 
9.Bh4 a5 10.Nd2 Nc5 11.O-O Qe8 12.f3 Nfd7 13.Nb5 Na6 14.a3 f5 15.b4 axb4 
16.axb4 g5 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Grimaldi, Rene"]
[Black "Camaton, Carlos"]
[Result "1-0"]
[ECO "B90"]
[EventDate "1977.11.15"]
[PlyCount "87"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Be2 Nf6 6.Nc3 d6 7.a4 b6 8.f4 Qc7 
9.O-O Bb7 10.Bf3 Nbd7 11.Nb3 Be7 12.Qe1 O-O 13.Be3 Nc5 14.Nd2 d5 15.e5 
Nfe4 16.Bd4 Nxd2 17.Qxd2 Nd7 18.Ne2 b5 19.Rfc1 Nb6 20.Qa5 Bc5 21.axb5 
Bxd4+ 22.Nxd4 Qc5 23.c3 Nc4 24.Qb4 Qxb4 25.cxb4 axb5 26.b3 Nb6 27.Be2 Rxa1
28.Rxa1 Ra8 29.Ra5 Ba6 30.Kf2 Kf8 31.Ke3 Ke7 32.Nc6+ Kd7 33.Nd4 Ke7 34.Bd3
h6 35.f5 exf5 36.Nxf5+ Kf8 37.Kd4 Bc8 38.Nd6 Be6 39.Rxa8+ Nxa8 40.Nxb5 Ke7
41.Kc5 Kd7 42.Nd4 Kc7 43.Ba6 Nb6 44.Nb5+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "De Leon, Otto"]
[Black "Denker, Arnold"]
[Result "1/2-1/2"]
[BlackElo "2335"]
[ECO "B40"]
[EventDate "1977.11.15"]
[PlyCount "45"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Be3 Nf6 6.Bd3 d5 7.exd5 Nxd5 8.
Nxc6 bxc6 9.Bd2 Rb8 10.b3 Qf6 11.c3 Bd6 12.O-O O-O 13.Qc1 Nf4 14.Bxf4 Bxf4
15.Qc2 g6 16.Nd2 c5 17.Rad1 Rd8 18.Be4 Ba6 19.Rfe1 Be5 20.c4 Bc3 21.Rf1 
Bd4 22.Nf3 e5 23.Rfe1 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "13"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Zarco Castillo, Jose"]
[Result "1-0"]
[WhiteElo "2385"]
[ECO "B06"]
[EventDate "1977.11.15"]
[PlyCount "57"]

1.e4 g6 2.Bc4 Bg7 3.Qf3 e6 4.Bb3 c5 5.d3 Nc6 6.c3 Nge7 7.h4 Ne5 8.Qe3 d5 
9.f4 Bh6 10.Bc2 dxe4 11.Qxe4 Ng4 12.Nd2 Nf5 13.Nf1 Bg7 14.h5 gxh5 15.Qe2 
Nf6 16.d4 Nh6 17.dxc5 Nhg4 18.Ng3 Qe7 19.Nxh5 O-O 20.Bxh7+ Nxh7 21.Qxg4 f5
22.Qxg7+ Qxg7 23.Nxg7 Kxg7 24.Be3 Bd7 25.Bd4+ Kg8 26.Nf3 Bc6 27.Kf2 a5 28.
Rxh7 Kxh7 29.Rh1+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Berry, Jonathan"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2315"]
[BlackElo "2385"]
[ECO "A29"]
[EventDate "1977.11.15"]
[PlyCount "124"]

1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.d3 Be7 5.g3 d5 6.cxd5 Nxd5 7.Bg2 Be6 8.O-O 
O-O 9.Bd2 f5 10.a3 Nb6 11.b4 Bf6 12.b5 Nd4 13.Rb1 a6 14.a4 axb5 15.Nxb5 
Nc6 16.Nc3 h6 17.Ne1 Qd7 18.Be3 Ra6 19.Bxb6 cxb6 20.e4 Nd4 21.Nf3 fxe4 22.
Nxd4 Qxd4 23.Nxe4 Be7 24.Rb5 Rxa4 25.Rxe5 Qxe5 26.Qxa4 b5 27.Qa7 Qc7 28.d4
Rd8 29.Nc5 Bc4 30.Re1 Bf6 31.Qxb7 Qxb7 32.Nxb7 Rxd4 33.Na5 Bf7 34.Bf1 Ra4 
35.Nc6 b4 36.Bb5 Ra8 37.Ne5 Bd5 38.Bc4 Bxc4 39.Nxc4 b3 40.Rb1 Rb8 41.Kf1 
b2 42.Ke2 Kf7 43.Kd2 Ke6 44.Ne3 Ke5 45.Ng4+ Ke4 46.Nxf6+ gxf6 47.Ke2 Rb3 
48.g4 Kf4 49.h3 Rb6 50.f3 Kg3 51.Ke3 Kxh3 52.Kf4 Kg2 53.Ke4 Kf2 54.f4 Ke2 
55.Kf5 Ke3 56.Re1+ Kd2 57.Rb1 Kc2 58.Rf1 b1=Q 59.Rxb1 Kxb1 60.Kg6 Kc2 61.
f5 Kd3 62.Kxh6 Ke4 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Camaton, Carlos"]
[Black "Anelli, Antonio"]
[Result "1/2-1/2"]
[BlackElo "2290"]
[ECO "B24"]
[EventDate "1977.11.15"]
[PlyCount "107"]

1.e4 c5 2.f4 Nc6 3.Nf3 e6 4.Nc3 Nge7 5.d3 d5 6.g3 g6 7.Bg2 Bg7 8.O-O O-O 
9.h3 d4 10.Ne2 e5 11.f5 gxf5 12.Nh4 fxe4 13.dxe4 f5 14.Nxf5 Nxf5 15.exf5 
Rxf5 16.g4 Rxf1+ 17.Qxf1 Qf6 18.Bd5+ Kh8 19.Qg2 Be6 20.Be4 Rf8 21.Ng3 Qh4 
22.Bd2 Bh6 23.Bxh6 Qxh6 24.Bf5 Bg8 25.Re1 Qh4 26.Kh2 Qd8 27.Be4 Qc7 28.Rf1
Rxf1 29.Qxf1 Qf7 30.Nf5 Ne7 31.Qb5 b6 32.b4 Nxf5 33.gxf5 Qe7 34.bxc5 bxc5 
35.Qb8 Kg7 36.a4 a5 37.Qb6 Bf7 38.Qxa5 Qh4 39.Qa8 Qf2+ 40.Kh1 Qf1+ 41.Kh2 
c4 42.a5 Qf2+ 43.Kh1 Qf1+ 44.Kh2 d3 45.cxd3 Qf4+ 46.Kg2 c3 47.Qc8 Qd2+ 48.
Kg3 c2 49.f6+ Kxf6 50.Qf5+ Ke7 51.Qxe5+ Be6 52.Qg7+ Kd8 53.Qh8+ Kd7 54.
Qd4+ 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Chavez Chavez, Romelio"]
[Black "Bademian Orchanian, Jose"]
[Result "1-0"]
[BlackElo "2235"]
[ECO "C82"]
[EventDate "1977.11.15"]
[PlyCount "125"]

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.c3 Bc5 10.Nbd2 O-O 11.Qe2 Bf5 12.Bd1 f6 13.exf6 Qxf6 14.Bb3 Nxd2 15.
Bxd5+ Kh8 16.Bxd2 Rae8 17.Be3 Ne7 18.Bxc5 Nxd5 19.Qd2 Ne7 20.Rfe1 h6 21.
Re3 Bg6 22.Rae1 Nf5 23.Bxf8 Nxe3 24.Bxg7+ Kxg7 25.Rxe3 Rd8 26.Qe1 c5 27.h3
Bc2 28.Re6 Qf4 29.Qe5+ Qxe5 30.Rxe5 Rd1+ 31.Re1 Rd5 32.Kh2 Kf6 33.g4 h5 
34.Kg3 a5 35.Kf4 hxg4 36.hxg4 a4 37.g5+ Kg7 38.Re5 Rd3 39.Rxc5 Bd1 40.Ne5 
Rd2 41.Rxb5 Rxf2+ 42.Ke3 Re2+ 43.Kd4 a3 44.bxa3 Rxa2 45.Rb7+ Kg8 46.Ra7 
Rg2 47.g6 Bc2 48.c4 Kf8 49.c5 Bxg6 50.Nxg6+ Rxg6 51.Kc4 Ke8 52.a4 Kd8 53.
a5 Kc8 54.Kb5 Kb8 55.Rd7 Rh6 56.a6 Rg6 57.c6 Kc8 58.Kb6 Rg1 59.Rd5 Rb1+ 
60.Rb5 Ra1 61.a7 Ra2 62.Rh5 Rb2+ 63.Ka6 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Denker, Arnold"]
[Black "Donoso Velasco, Pedro"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2400"]
[ECO "E68"]
[EventDate "1977.11.15"]
[PlyCount "133"]

1.d4 Nf6 2.c4 d6 3.Nf3 g6 4.g3 Bg7 5.Bg2 O-O 6.O-O Nbd7 7.Nc3 e5 8.Qc2 c6 
9.Rd1 Re8 10.b3 Qe7 11.Ba3 exd4 12.Nxd4 Nc5 13.Bb2 a5 14.h3 a4 15.Nxa4 
Nxa4 16.bxa4 Ne4 17.Rd3 Nc5 18.Re3 Qd8 19.Rxe8+ Qxe8 20.Nb3 Bf5 21.Qd2 
Bxb2 22.Qxb2 Nxa4 23.Qd2 Qe5 24.f4 Qc3 25.g4 Be6 26.Qxd6 Bxc4 27.Rf1 Qe3+ 
28.Kh2 Bxe2 29.Re1 Nc3 30.g5 Nd5 31.Qe5 Qxe5 32.fxe5 Bc4 33.Nd2 Bd3 34.
Bxd5 cxd5 35.Re3 Bc4 36.a3 b5 37.Nf3 Ra4 38.Nd4 Bf1 39.Nc6 d4 40.Re1 Bc4 
41.Nxd4 Rxa3 42.Rb1 Bd3 43.Rb2 Ra8 44.Rb3 Bc4 45.Rb1 Rb8 46.Nc6 Re8 47.Re1
Ra8 48.Rd1 Be6 49.h4 Kf8 50.Kg3 Ke8 51.Rd6 Bd7 52.Nb4 Kd8 53.Nd5 Rb8 54.
Nb4 Kc8 55.Kf3 Be6 56.Ke3 Kb7 57.Nc6 Re8 58.Kd4 Kc7 59.Nb4 Bc4 60.Na6+ Kc8
61.Nb4 Re7 62.Rc6+ Rc7 63.Kc5 Kb7 64.Rxc7+ Kxc7 65.Nc2 Bd3 66.Nd4 Kd7 67.
Kb4 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Escondrillas, Carlos"]
[Black "Grimaldi, Rene"]
[Result "0-1"]
[WhiteElo "2265"]
[ECO "A04"]
[EventDate "1977.11.15"]
[PlyCount "114"]

1.Nf3 f5 2.e4 fxe4 3.Ng5 Nf6 4.d3 e5 5.dxe4 h6 6.Nf3 d6 7.Bc4 c6 8.Nc3 b5 
9.Bd3 Bg4 10.h3 Bh5 11.g4 Bf7 12.Qe2 Nbd7 13.Bd2 Nc5 14.a3 Ne6 15.Rd1 a6 
16.Bc1 Qc7 17.O-O Be7 18.Rfe1 Nh7 19.Qf1 O-O 20.Qg2 Nhg5 21.Nxg5 hxg5 22.
Ne2 Rad8 23.Ng3 g6 24.Bf1 Nf4 25.Qf3 Be6 26.Ne2 d5 27.Nxf4 gxf4 28.Bd3 d4 
29.Qe2 c5 30.c4 Bg5 31.Qc2 Qh7 32.Bf1 Qh4 33.cxb5 Bxg4 34.f3 Bxf3 35.Qb3+ 
Kg7 36.Qxf3 axb5 37.Bxb5 Rb8 38.Bc4 Rh8 39.Kg2 Be7 40.Rh1 Rh5 41.Rdg1 Rg5+
42.Kf1 Rg3 43.Rxg3 fxg3 44.Kg2 Rf8 45.Qg4 Rf2+ 46.Kg1 Rc2 47.Qxh4 Rxc1+ 
48.Kg2 Rc2+ 49.Kxg3 Bxh4+ 50.Kxh4 Rxc4 51.Kg4 Rc2 52.Rb1 c4 53.Kf3 Kh6 54.
a4 d3 55.Ke3 Re2+ 56.Kf3 Rxb2 57.Rxb2 c3 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Garcia, Gildardo"]
[Black "De Leon, Otto"]
[Result "1-0"]
[WhiteElo "2340"]
[ECO "B01"]
[EventDate "1977.11.15"]
[PlyCount "91"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.Bd2
Qd8 9.O-O-O e6 10.g4 Be7 11.Kb1 Nbd7 12.g5 Nd5 13.Ne4 b5 14.h4 a5 15.Bh3 
Qb6 16.Rhe1 b4 17.h5 g6 18.Qg3 a4 19.Nd6+ Bxd6 20.Qxd6 O-O-O 21.Bg2 Nb8 
22.Qe5 Nd7 23.Qg7 Rdf8 24.Bxd5 cxd5 25.Bf4 Kb7 26.Re3 Rhg8 27.Qh6 Qc6 28.
Rf3 Rc8 29.Rc1 Rcf8 30.hxg6 hxg6 31.Qh2 Rh8 32.Qg3 Rc8 33.Bd2 Rh7 34.Rf4 
Nb6 35.Qf3 Qc7 36.Bxb4 Rh3 37.Qxh3 Qxf4 38.Qe3 Qf5 39.b3 axb3 40.axb3 Nd7 
41.Kb2 Nb6 42.Qd2 Rh8 43.Bc5 Kc6 44.Bxb6 Kxb6 45.Qb4+ Kc7 46.Qc5+ 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Pesantes Carbajal, Carlos"]
[Black "Hook, William"]
[Result "1-0"]
[WhiteElo "2290"]
[BlackElo "2250"]
[ECO "A40"]
[EventDate "1977.11.15"]
[PlyCount "41"]

1.d4 b6 2.c4 e6 3.Nf3 Bb7 4.Nc3 Bxf3 5.gxf3 d5 6.e4 dxc4 7.Bxc4 c6 8.O-O 
Bd6 9.f4 Qh4 10.Qf3 Nh6 11.h3 O-O 12.Kh1 a6 13.Rg1 Kh8 14.f5 Be7 15.Qg2 g6
16.fxe6 fxe6 17.Be3 e5 18.dxe5 Nd7 19.f4 b5 20.Rad1 Bc5 21.Rxd7 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "14"]
[White "Zarco Castillo, Jose"]
[Black "Gamarra Caceres, Carlos"]
[Result "1-0"]
[BlackElo "2280"]
[ECO "D90"]
[EventDate "1977.11.15"]
[PlyCount "119"]

1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.Nc3 d5 5.cxd5 Nxd5 6.Qb3 Nxc3 7.bxc3 O-O 8.g3
c5 9.Bg2 Nc6 10.e3 Rb8 11.O-O Be6 12.Qd1 Bd5 13.Ba3 cxd4 14.cxd4 Qa5 15.
Bc1 Rfd8 16.Bd2 Qa3 17.Qc1 Qa6 18.Bc3 Rbc8 19.Re1 b5 20.Qd2 Be4 21.Qb2 Qb7
22.Nh4 Bxg2 23.Nxg2 b4 24.Bd2 e5 25.Rab1 exd4 26.Bxb4 Ne5 27.Red1 dxe3 28.
Rxd8+ Rxd8 29.Kf1 Nd3 30.Qxg7+ Kxg7 31.Bc3+ Kh6 32.Rxb7 Rc8 33.Bd4 Rc1+ 
34.Ke2 exf2 35.Bxf2 Nxf2 36.Kxf2 Rc2+ 37.Kf3 Rxa2 38.Rxf7 g5 39.h3 a5 40.
Ne3 Kg6 41.Ra7 a4 42.Ra6+ Kf7 43.Kg4 Ra3 44.Nf5 Ra1 45.Kxg5 a3 46.Nd4 Rd1 
47.Ra7+ Ke8 48.Nc2 Rc1 49.Nxa3 Rc3 50.Kh4 h6 51.g4 Kf8 52.Nb5 Rc5 53.Nd4 
Kg8 54.Nf5 Kh8 55.Kh5 Rc6 56.h4 Rb6 57.Ne7 Rb5+ 58.Kxh6 Rb6+ 59.Ng6+ Kg8 
60.Rg7# 1-0

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Anelli, Antonio"]
[Black "Escondrillas, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2290"]
[BlackElo "2265"]
[ECO "E99"]
[EventDate "1977.11.15"]
[PlyCount "76"]

1.c4 Nf6 2.Nf3 g6 3.d4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Ne1 Nd7 10.f3 f5 11.g4 Nf6 12.Nd3 c6 13.Bd2 Kh8 14.Kg2 a6 15.Nf2 Bd7 16.
a3 Qc7 17.b4 Rab8 18.Rc1 c5 19.bxc5 Qxc5 20.a4 b6 21.Rb1 Rb7 22.Qc1 Rfb8 
23.h3 f4 24.h4 Be8 25.Qb2 h6 26.Qb3 Nd7 27.Nd3 Qc7 28.Rb2 Nc5 29.Qa2 Nc8 
30.Rfb1 Bf6 31.Rh1 Bd8 32.Be1 Na7 33.Bf2 a5 34.Rhb1 Bd7 35.Bd1 Kh7 36.Nb5 
Nxb5 37.cxb5 Be8 38.Nxc5 dxc5 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Bademian Orchanian, Jose"]
[Black "Denker, Arnold"]
[Result "1/2-1/2"]
[WhiteElo "2235"]
[BlackElo "2335"]
[ECO "B17"]
[EventDate "1977.11.15"]
[PlyCount "83"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Bd3 Nxe4 7.Bxe4 Nf6 8.
Bd3 Bg4 9.c3 e6 10.O-O Be7 11.h3 Bh5 12.Bf4 O-O 13.Re1 Qb6 14.Qe2 c5 15.
dxc5 Qxc5 16.Rad1 Rad8 17.Be5 a6 18.Bd4 Qc7 19.Qe3 Nd5 20.Qe4 Bg6 21.Qe5 
Qxe5 22.Nxe5 Bxd3 23.Nxd3 Rc8 24.g3 Bd6 25.Re2 b5 26.a3 a5 27.Rc1 Rc6 28.
f4 Rfc8 29.Kf2 Kf8 30.Kf3 Be7 31.g4 Bf6 32.Be5 h6 33.Rg1 Bd8 34.Re4 f6 35.
Bd4 Bb6 36.Rge1 Re8 37.h4 Kf7 38.h5 Nc7 39.g5 Rd8 40.gxh6 gxh6 41.Rg1 Rd5 
42.Rh1 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Donoso Velasco, Pedro"]
[Black "Garcia, Gildardo"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2340"]
[ECO "D43"]
[EventDate "1977.11.15"]
[PlyCount "33"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Bg5 h6 5.Bxf6 Qxf6 6.Nc3 c6 7.e3 Nd7 8.cxd5 
exd5 9.Bd3 Bd6 10.O-O O-O 11.Qc2 Qd8 12.e4 dxe4 13.Nxe4 Nf6 14.Rfe1 Nd5 
15.a3 Be6 16.Ne5 Nf4 17.Bc4 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Gamarra Caceres, Carlos"]
[Black "Berry, Jonathan"]
[Result "0-1"]
[WhiteElo "2280"]
[BlackElo "2315"]
[ECO "B01"]
[EventDate "1977.11.15"]
[PlyCount "58"]

1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 Bg4 5.Be2 Nc6 6.h3 Bh5 7.O-O e6 8.b3 
Be7 9.c4 Nb6 10.Bb2 Bf6 11.g4 Bg6 12.Ne5 Bxe5 13.dxe5 Qh4 14.Kg2 h5 15.Qe1
hxg4 16.Bxg4 O-O-O 17.Nd2 Nd4 18.Rc1 Nc2 19.Qd1 Nb4 20.c5 N6d5 21.Rc4 Qh6 
22.Bc1 Nf4+ 23.Kg3 Nbd3 24.Ne4 Qh4+ 25.Kh2 Nxh3 26.Nd6+ Kb8 27.Kg2 Nhxf2 
28.Qe2 Qh2+ 29.Kf3 Rh3+ 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Hook, William"]
[Black "Chavez Chavez, Romelio"]
[Result "0-1"]
[WhiteElo "2250"]
[ECO "E94"]
[EventDate "1977.11.15"]
[PlyCount "72"]

1.Nf3 g6 2.d4 Bg7 3.c4 Nf6 4.Nc3 d6 5.e4 O-O 6.Be2 Nbd7 7.O-O e5 8.Rb1 Ne8
9.d5 c5 10.dxc6 bxc6 11.b4 h6 12.b5 c5 13.Ne1 Nb6 14.g4 Be6 15.Nd5 Nf6 16.
f3 Nh7 17.Kh1 Kh8 18.Rg1 Nxd5 19.cxd5 Bd7 20.Bd2 f5 21.gxf5 gxf5 22.Nc2 f4
23.Na3 Ng5 24.Nc4 Qe7 25.Na5 Bf6 26.Bf1 Qf7 27.Qe2 Qh5 28.Rb3 Rg8 29.Be1 
Rg7 30.Bf2 Rag8 31.Nc6 Bh3 32.Bxh3 Nxh3 33.Rxg7 Rxg7 34.Rb1 Bh4 35.Bxh4 
Qxh4 36.Rf1 Qg5 0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "De Leon, Otto"]
[Black "Camaton, Carlos"]
[Result "0-1"]
[ECO "B40"]
[EventDate "1977.11.15"]
[PlyCount "66"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Bd3 Nc6 6.Be3 d5 7.Nd2 e5 8.Nxc6 
bxc6 9.exd5 cxd5 10.Bg5 Rb8 11.Qe2 Bd6 12.Bb5+ Kf8 13.b3 Qa5 14.Bxf6 gxf6 
15.Ba4 Ba6 16.Qe3 Rg8 17.Qh6+ Ke7 18.Qh3 Bb4 19.Rd1 Bc8 20.Qxh7 Ba6 21.Qh3
Rgd8 22.Qe3 Rbc8 23.a3 Bc3 24.Qxa7+ Kf8 25.Qe3 d4 26.Qh6+ Ke7 27.Qh5 d3 
28.O-O dxc2 29.Ne4 cxd1=Q 30.Rxd1 Rxd1+ 31.Qxd1 Bd4 32.h3 f5 33.Ng3 Bxf2+ 
0-1

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[Round "15"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Pesantes Carbajal, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2385"]
[BlackElo "2290"]
[ECO "C91"]
[EventDate "1977.11.15"]
[PlyCount "31"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.d4 d6 
9.c3 Bg4 10.Be3 Qc8 11.Nbd2 Na5 12.Bc2 c5 13.dxe5 dxe5 14.h3 Bh5 15.Nf1 
Nc4 16.Bc1 1/2-1/2

[Event "9th Pan-American ch"]
[Site "Santa Cruz BOL"]
[Date "1977.11.02"]
[Round "15"]
[White "Grimaldi, Rene"]
[Black "Zarco Castillo, Jose"]
[Result "1/2-1/2"]
[ECO "B07"]
[EventDate "1977.11.15"]
[PlyCount "49"]

1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.Bc4 Nf6 5.Bg5 Nc6 6.f3 e5 7.Nge2 exd4 8.Nxd4 
Ne5 9.Bb3 h6 10.Be3 a6 11.a4 Qe7 12.Qd2 h5 13.h4 Be6 14.Nxe6 fxe6 15.Ne2 
c6 16.O-O-O d5 17.Qa5 Nfd7 18.exd5 exd5 19.Rhe1 O-O 20.Bg5 Qc5 21.Qxc5 
Nxc5 22.Nd4 Nxb3+ 23.Nxb3 Nc4 24.c3 Rfe8 25.Kc2 1/2-1/2

