[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2390"]
[ECO "B44"]
[EventDate "1978.09.16"]
[PlyCount "26"]

1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bb7 12.Qb3 Nd7 13.Rac1 Nc5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Estrada Degrandi, Walter"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2350"]
[ECO "A06"]
[EventDate "1978.09.16"]
[PlyCount "35"]

1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.O-O e5 5.d3 Ne7 6.e4 O-O 7.Nc3 d4 8.Ne2 c5 9.
Nd2 Nbc6 10.f4 f6 11.Nf3 Qd6 12.h3 Be6 13.g4 exf4 14.Bxf4 Ne5 15.Qd2 N7c6 
16.b3 a6 17.Bh2 Qd7 18.Nf4 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Frias Pablaza, Victor"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2405"]
[ECO "E39"]
[EventDate "1978.09.16"]
[PlyCount "37"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.Bg5 O-O 7.a3 Bxc3+ 8.Qxc3
Nxc5 9.Bxf6 Qxf6 10.Qxf6 gxf6 11.f3 a5 12.e4 a4 13.Rd1 b6 14.Ne2 Rd8 15.
Nc3 Bb7 16.Rd6 Bc6 17.Be2 Kf8 18.Kf2 Ke7 19.Rhd1 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Gonzalez Bernal, Manuel"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[BlackElo "2400"]
[ECO "B47"]
[EventDate "1978.09.16"]
[PlyCount "83"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.O-O Nxd4 8.
Qxd4 b5 9.Bg5 Nc6 10.Qe3 Be7 11.Bxe7 Nxe7 12.f4 O-O 13.Rad1 Rb8 14.Rd2 Bb7
15.f5 exf5 16.exf5 Re8 17.Qg5 f6 18.Qh5 Qb6+ 19.Kh1 Qc5 20.Bf3 Bxf3 21.
Qxf3 Qxf5 22.Qd1 Qe6 23.Re1 Qc6 24.Rd6 Qa8 25.Rxd7 Nf5 26.Rg1 Re5 27.Nd5 
Qc6 28.Rf1 Rbe8 29.c3 h5 30.Nf4 Ne3 31.Qb3+ Qc4 32.Qxc4+ bxc4 33.Rb1 Nd5 
34.Nh3 Re1+ 35.Rxe1 Rxe1+ 36.Ng1 Nf4 37.Rd2 Rb1 38.g3 Nd3 39.b3 cxb3 40.
axb3 Nc1 41.b4 Nb3 42.Rc2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Trois, Francisco"]
[Black "Braga, Cicero"]
[Result "1-0"]
[WhiteElo "2385"]
[ECO "E90"]
[EventDate "1978.09.16"]
[PlyCount "73"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.d4 O-O 5.e4 d6 6.h3 e5 7.d5 Nbd7 8.Be3 Nc5 
9.Nd2 a5 10.g4 Ne8 11.h4 f5 12.gxf5 gxf5 13.Qe2 Ne6 14.dxe6 f4 15.Bh3 fxe3
16.Qxe3 c6 17.Na4 Rf6 18.Nb6 Bh6 19.Qg3+ Rg6 20.Qb3 Bxd2+ 21.Kxd2 a4 22.e7
Qxe7 23.Qe3 Bxh3 24.Nxa8 Bg2 25.Rh2 d5 26.h5 Rg7 27.cxd5 cxd5 28.f3 dxe4 
29.fxe4 Qb4+ 30.Qc3 Qxe4 31.Re1 Qf4+ 32.Qe3 Qxh2 33.Qxe5 Qxe5 34.Rxe5 Bc6 
35.Nb6 Rg2+ 36.Kc3 Kf7 37.Nc4 {time} 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "1"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Segal, Alexandru Sorin"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2395"]
[ECO "B12"]
[EventDate "1978.09.16"]
[PlyCount "87"]

1.e4 c6 2.d4 g6 3.h4 d5 4.exd5 cxd5 5.h5 Bg7 6.Ne2 Nc6 7.c3 Nf6 8.Ng3 Qc7 
9.Na3 a6 10.Be2 Bd7 11.Nc2 Na7 12.Bg5 h6 13.Bxf6 Bxf6 14.hxg6 fxg6 15.Bd3 
O-O-O 16.Ne3 Qd6 17.Qf3 Bg5 18.Qxd5 Qxd5 19.Nxd5 Bc6 20.Nb4 Bxg2 21.Rg1 
Bf3 22.Be4 Rhf8 23.Bxf3 Rxf3 24.Ne4 Rdf8 25.Nxg5 hxg5 26.O-O-O Rxf2 27.
Rxg5 R8f6 28.Nd5 Re6 29.Rd2 Rf1+ 30.Kc2 Kd7 31.Rdg2 Rf5 32.Rxf5 gxf5 33.
Rf2 Kd6 34.Nb6 Rf6 35.Nc4+ Kd7 36.Ne5+ Kd6 37.Nc4+ Kd7 38.Kd3 Nc6 39.d5 
Nd8 40.Kd4 Nf7 41.a4 e6 42.a5 exd5 43.Kxd5 f4 44.Ne5+ 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Bronstein, Luis Marcos"]
[Black "Frias Pablaza, Victor"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2400"]
[ECO "A34"]
[EventDate "1978.09.16"]
[PlyCount "93"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nb4 6.Bc4 e6 7.O-O N4c6 8.d3 
Be7 9.Be3 O-O 10.d4 cxd4 11.Nxd4 Nxd4 12.Bxd4 Nc6 13.Be3 Bd7 14.Qe2 Qa5 
15.a3 Rfd8 16.f4 Bc5 17.b4 Bxe3+ 18.Qxe3 Qb6 19.Qxb6 axb6 20.Nb5 Ne7 21.
Nd6 Bc6 22.Rfd1 Ba4 23.Rd3 Bc2 24.Rd2 Nc8 25.e5 Nxd6 26.exd6 Bf5 27.Rd4 
Kf8 28.Be2 Bc2 29.Bf3 Rd7 30.Rc1 Ba4 31.Rc7 Rad8 32.Rxd7 Rxd7 33.Kf2 Ke8 
34.Ke3 Bc6 35.g4 Rd8 36.Bxc6+ bxc6 37.a4 Kd7 38.a5 bxa5 39.bxa5 Ra8 40.Ra4
Kxd6 41.Kd4 c5+ 42.Kc4 Kc6 43.a6 Kb6 44.a7 Rxa7 45.Rxa7 Kxa7 46.Kxc5 Kb7 
47.Kd6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Emma, Jaime"]
[Black "Gonzalez Bernal, Manuel"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "B93"]
[EventDate "1978.09.16"]
[PlyCount "55"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 8.Nf3 
Nbd7 9.a4 b6 10.O-O Bg7 11.Qe1 e5 12.fxe5 dxe5 13.Qh4 Bb7 14.Bh6 O-O 15.
Ng5 Qd6 16.Rad1 Rfd8 17.Bxg7 Kxg7 18.Kh1 Qe7 19.Bc4 Rac8 20.Nxf7 Rxc4 21.
Nxd8 Qxd8 22.Qxf6+ Nxf6 23.Rxd8 Bxe4 24.Rd6 Nh5 25.Nxe4 Rxe4 26.Rxb6 Rxa4 
27.Re6 e4 28.g4 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Estrada Degrandi, Walter"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2350"]
[BlackElo "2375"]
[ECO "A27"]
[EventDate "1978.09.16"]
[PlyCount "78"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.d5 exf3 6.dxc6 fxg2 7.cxd7+ Qxd7 8.
Qxd7+ Bxd7 9.Bxg2 O-O-O 10.Bg5 Be7 11.Bxe7 Nxe7 12.O-O-O Ng6 13.Rd4 Be6 
14.Bd5 Bxd5 15.cxd5 Rd7 16.Rhd1 Rhd8 17.f3 Ne5 18.Rf4 Rf8 19.h4 g6 20.h5 
g5 21.Ra4 a6 22.f4 Ng4 23.fxg5 Rg8 24.g6 hxg6 25.hxg6 Rxg6 26.Rg1 Rdd6 27.
Rf4 Ne3 28.Rxg6 Rxg6 29.Kd2 Rg3 30.b3 Kd7 31.Nd1 Nxd1 32.Kxd1 Rg5 33.Rb4 
b5 34.a4 Rg4 35.Rxg4 fxg4 36.axb5 axb5 37.Kd2 Kd6 38.Ke3 Kxd5 39.Kf4 c5 
0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Hase, Juan Carlos"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2370"]
[ECO "E61"]
[EventDate "1978.09.16"]
[PlyCount "19"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Bf4 d6 5.Nf3 Nbd7 6.h3 O-O 7.e3 c6 8.Be2 Qe8 
9.O-O e5 10.Bh2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Segal, Alexandru Sorin"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2385"]
[ECO "A01"]
[EventDate "1978.09.16"]
[PlyCount "21"]

1.b3 e5 2.Bb2 d6 3.g3 Nf6 4.Bg2 Be7 5.c4 O-O 6.Nc3 c6 7.Nf3 Re8 8.O-O Bf8 
9.d3 a5 10.Ne1 Ra6 11.Nc2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "2"]
[White "Silva Sanchez, Carlos"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2360"]
[ECO "C10"]
[EventDate "1978.09.16"]
[PlyCount "104"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bd7 5.Nf3 Bc6 6.Qd3 Nd7 7.Be2 Be7 8.c4 
Bxe4 9.Qxe4 Bb4+ 10.Kf1 c6 11.Qd3 Be7 12.Bd2 Ngf6 13.Bc3 O-O 14.Rd1 a5 15.
g3 Bb4 16.Kg2 Qe7 17.Rhe1 Rfd8 18.Bf1 Qf8 19.a3 Bxc3 20.Qxc3 a4 21.c5 Nd5 
22.Qc2 Rdb8 23.Bc4 b6 24.cxb6 Rxb6 25.Re2 g6 26.Ba2 Qd6 27.Rdd2 Kg7 28.Qc1
Nc7 29.Rc2 Nb5 30.Rc4 Nc7 31.Rec2 Raa6 32.Qd1 e5 33.Re2 Nb5 34.Rxa4 Rxa4 
35.Qxa4 Nxd4 36.Nxd4 exd4 37.b4 d3 38.Rd2 Ne5 39.f4 Ng4 40.Qa7 Ne3+ 41.Kf3
Nd5 42.Rxd3 Rb5 43.Qd4+ Kg8 44.Bc4 Rb8 45.Bxd5 cxd5 46.Qxd5 Qb6 47.Kg2 Re8
48.Rd2 Qe3 49.Qd3 Qb6 50.b5 h5 51.a4 h4 52.gxh4 Qe6 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Braga, Cicero"]
[Black "Segal, Alexandru Sorin"]
[Result "1/2-1/2"]
[BlackElo "2395"]
[ECO "C95"]
[EventDate "1978.09.16"]
[PlyCount "51"]

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 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Ng3 g6 15.a4 c5 
16.d5 Nb6 17.Qe2 Nxa4 18.Bxa4 bxa4 19.Rxa4 Bc8 20.b3 a5 21.Bd2 Bd7 22.Ra3 
a4 23.Rea1 axb3 24.Rxa8 b2 25.R8a2 bxa1=R+ 26.Rxa1 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Bronstein, Luis Marcos"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2400"]
[ECO "A46"]
[EventDate "1978.09.16"]
[PlyCount "80"]

1.d4 Nf6 2.Nf3 c5 3.c3 b6 4.Bg5 Bb7 5.e3 g6 6.Nbd2 Bg7 7.Be2 O-O 8.O-O d6 
9.Re1 Nbd7 10.Qc2 Rc8 11.Rad1 Rc7 12.Bf1 Qa8 13.h3 a6 14.Qb1 h6 15.Bxf6 
Nxf6 16.e4 cxd4 17.cxd4 Rfc8 18.e5 Nh7 19.Bd3 dxe5 20.dxe5 Ng5 21.Nxg5 
hxg5 22.Be4 Bxe4 23.Rxe4 Rc2 24.Ree1 Qd5 25.Nf3 Qc5 26.Nd4 Rc4 27.Nf3 Rc2 
28.Nd4 Rc4 29.Nf3 g4 30.hxg4 Rxg4 31.Qd3 Rc4 32.Re2 b5 33.g3 Rc1 34.Kg2 
Rxd1 35.Qxd1 Qc6 36.Rd2 Bxe5 37.Rd8+ Rxd8 38.Qxd8+ Kg7 39.b3 Bf6 40.Qd1 e5
0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Frias Pablaza, Victor"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2390"]
[ECO "B85"]
[EventDate "1978.09.16"]
[PlyCount "35"]

1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Kh1 
Be7 9.f4 d6 10.Be3 Bd7 11.Qe1 b5 12.a3 O-O 13.Qg3 Nxd4 14.Bxd4 Bc6 15.Rae1
g6 16.f5 e5 17.Be3 Qd8 18.Bh6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Gonzalez Bernal, Manuel"]
[Black "Hase, Juan Carlos"]
[Result "0-1"]
[BlackElo "2410"]
[ECO "B83"]
[EventDate "1978.09.16"]
[PlyCount "78"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 d6 5.Be2 Nf6 6.Nc3 Nc6 7.O-O Be7 8.Be3 
Bd7 9.Ndb5 Qb8 10.a4 O-O 11.g4 a6 12.Na3 d5 13.exd5 Nb4 14.dxe6 Bxe6 15.
Bf3 Qc7 16.a5 Rac8 17.Bb6 Qf4 18.Be3 Qe5 19.Qd4 Qxa5 20.g5 Nfd5 21.Ne4 
Nxe3 22.Qxe3 Qe5 23.Qc1 Bh3 24.Re1 Qf5 25.Qe3 Nd5 26.Nf6+ Bxf6 27.Bxd5 
Qxd5 28.Qxh3 Bxb2 29.Rad1 Qxg5+ 30.Kh1 Rc3 31.Rd3 Rxd3 32.Qxd3 Qa5 33.Re3 
Bxa3 34.Qxa3 Qd5+ 35.Kg1 Qd1+ 36.Kg2 Qxc2 37.Re7 Qc6+ 38.Kg1 g6 39.Qb3 
Qc1+ 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Trois, Francisco"]
[Black "Estrada Degrandi, Walter"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2350"]
[ECO "A86"]
[EventDate "1978.09.16"]
[PlyCount "83"]

1.c4 f5 2.d4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nc3 d6 6.d5 Nbd7 7.Nh3 Nc5 8.Nf4 Rb8 
9.Be3 O-O 10.b4 Nce4 11.Nxe4 Nxe4 12.Bd4 c5 13.Bxg7 Kxg7 14.a3 Qb6 15.O-O 
Bd7 16.Qc2 Nf6 17.Qc3 Kg8 18.b5 g5 19.Ne6 Bxe6 20.dxe6 Nh5 21.f4 gxf4 22.
gxf4 Rf6 23.Kh1 Rbf8 24.Qf3 Rh6 25.Rg1 Rff6 26.Bh3+ Kh8 27.a4 Qc7 28.a5 
Rf8 29.a6 b6 30.Bxf5 d5 31.cxd5 Qxf4 32.Qxf4 Nxf4 33.e4 Ne2 34.Rg2 Nd4 35.
d6 exd6 36.e7 Re8 37.Rag1 Nxf5 38.Rg8+ Rxg8 39.Rxg8+ Kxg8 40.e8=Q+ Kg7 41.
exf5 Rf6 42.Qe7+ 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "3"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Silva Sanchez, Carlos"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2405"]
[ECO "B95"]
[EventDate "1978.09.16"]
[PlyCount "49"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qf3 Nbd7 8.O-O-O
Qc7 9.Qg3 b5 10.Bxb5 axb5 11.Ndxb5 Qb8 12.Nxd6+ Bxd6 13.Qxd6 Qxd6 14.Rxd6 
Bb7 15.Rhd1 O-O-O 16.f3 h6 17.Bh4 Ne5 18.Nb5 Nc6 19.Bf2 Kb8 20.Bg3 Ka8 21.
R1d3 Rxd6 22.Ra3+ Kb8 23.Nxd6 e5 24.Rb3 Na5 25.Rb5 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Braga, Cicero"]
[Black "Frias Pablaza, Victor"]
[Result "1/2-1/2"]
[BlackElo "2400"]
[ECO "B85"]
[EventDate "1978.09.16"]
[PlyCount "37"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.Be3 
Nc6 9.f4 Bd7 10.Kh1 a6 11.a4 Nxd4 12.Bxd4 Bc6 13.Bf3 Nd7 14.Nd5 Bxd5 15.
exd5 e5 16.fxe5 dxe5 17.Be3 Bd6 18.Bg4 e4 19.Bxd7 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Bronstein, Luis Marcos"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2390"]
[ECO "D57"]
[EventDate "1978.09.16"]
[PlyCount "27"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 
Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 Rd8 12.c4 dxc4 13.Bxc4 Nc6 14.Be2 
1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Estrada Degrandi, Walter"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1-0"]
[WhiteElo "2350"]
[BlackElo "2370"]
[ECO "D02"]
[EventDate "1978.09.16"]
[PlyCount "113"]

1.d4 d5 2.Nf3 Nf6 3.Bf4 e6 4.e3 c5 5.c3 Nc6 6.Nbd2 Be7 7.Bd3 Qb6 8.Rb1 Bd7
9.Ne5 Rc8 10.O-O O-O 11.Bg5 Qd8 12.f4 Ne8 13.Qh5 f5 14.Rf3 Nxe5 15.dxe5 
Bxg5 16.Qxg5 Qxg5 17.fxg5 Nc7 18.Rf4 a6 19.Be2 Bb5 20.Kf2 Bxe2 21.Kxe2 Nb5
22.a4 Na7 23.Nf3 Nc6 24.b4 cxb4 25.cxb4 Ne7 26.Rd4 Rc2+ 27.Rd2 Rc4 28.Nd4 
Kf7 29.a5 Nc6 30.b5 Nxd4+ 31.exd4 Ra4 32.bxa6 bxa6 33.Rb7+ Kg6 34.Rb6 Rxa5
35.Rxe6+ Kxg5 36.Re7 Rg8 37.Rd3 f4 38.Kf3 Rb5 39.h4+ Kxh4 40.Kxf4 Rf8+ 41.
Ke3 g5 42.Rxh7+ Kg4 43.Rd7 Rf4 44.Ra3 a5 45.Kd3 Kg3 46.Rxd5 Rb8 47.e6 g4 
48.Raxa5 Kxg2 49.e7 Re8 50.Ra7 Rf3+ 51.Ke4 Rf1 52.Re5 g3 53.d5 Rd1 54.Kf5 
Kh3 55.Ra3 Kh2 56.Ke6 Rh8 57.Kd7 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Segal, Alexandru Sorin"]
[Black "Gonzalez Bernal, Manuel"]
[Result "0-1"]
[WhiteElo "2395"]
[ECO "A77"]
[EventDate "1978.09.16"]
[PlyCount "118"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Be2 Bg7 8.f4 Nbd7 
9.Nf3 O-O 10.O-O Re8 11.Nd2 a6 12.a4 Rb8 13.Re1 Qc7 14.Qc2 c4 15.a5 b5 16.
axb6 Nxb6 17.h3 Bb7 18.Nf1 Nfxd5 19.exd5 Qc5+ 20.Kh1 Qf2 21.Be3 Rxe3 22.
Nxe3 Qxe3 23.Bxc4 Qxf4 24.Re4 Qg3 25.Rg4 Qe3 26.Re4 Qg3 27.Ne2 Qf2 28.Rd1 
Rc8 29.Qd3 Na4 30.Rf4 Qa7 31.Rdf1 Nxb2 32.Qf3 f5 33.Ba2 a5 34.g4 Re8 35.
gxf5 Re3 36.Qg2 Ba6 37.R1f2 Nd3 38.fxg6 Nxf2+ 39.Rxf2 hxg6 40.Nf4 Qd7 41.
Qxg6 Bd3 42.Qg5 Be4+ 43.Kh2 Re1 44.Ng2 Ra1 45.Bc4 Qe8 46.Rf6 Qe7 47.Rg6 
Qxg5 48.Rxg5 Kf8 49.Rg4 Be5+ 50.Nf4 Ra4 51.Bb3 Ra3 52.Kg1 Bf3 53.Ng6+ Kg7 
54.Nxe5+ Bxg4 55.Nc4 Rxb3 56.hxg4 a4 57.Nxd6 a3 58.Nf5+ Kf8 59.Nd4 Rb1+ 
0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Silva Sanchez, Carlos"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2410"]
[ECO "B83"]
[EventDate "1978.09.16"]
[PlyCount "38"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 Be7 7.Be2 Nc6 8.O-O 
O-O 9.Kh1 e5 10.Nb3 a5 11.a4 Be6 12.f4 exf4 13.Rxf4 Nd7 14.Rf1 Rc8 15.Re1 
Nb6 16.Bxb6 Qxb6 17.Nd5 Qd8 18.Nxe7+ Qxe7 19.Nd4 Nxd4 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "4"]
[White "Trois, Francisco"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2360"]
[ECO "D94"]
[EventDate "1978.09.16"]
[PlyCount "77"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 g6 5.Nc3 Bg7 6.Be2 O-O 7.O-O Bg4 8.b3 Nbd7 
9.h3 Bxf3 10.Bxf3 e6 11.Bb2 Re8 12.Qc2 Qe7 13.a4 a6 14.Rfd1 Qd8 15.Ba3 a5 
16.e4 dxe4 17.Bxe4 Nxe4 18.Nxe4 Nf6 19.Ng5 Nd5 20.Nf3 Nb4 21.Qe4 Qc7 22.
Rab1 Rad8 23.Bc1 h6 24.Bf4 Qe7 25.Rd2 Qf6 26.Bc7 Ra8 27.Rbd1 Rec8 28.Be5 
Qd8 29.h4 h5 30.Re1 Qf8 31.Ng5 Bxe5 32.dxe5 Rd8 33.Red1 Rxd2 34.Rxd2 Qe7 
35.Qf4 Kg7 36.Rd6 c5 37.Qd2 Rf8 38.Rd7 Qe8 39.Qd6 {time} 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2405"]
[ECO "B40"]
[EventDate "1978.09.16"]
[PlyCount "60"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d6 5.Bg2 g6 6.O-O Bg7 7.c3 e5 8.Be3 Nge7 9.
a3 O-O 10.d4 cxd4 11.cxd4 d5 12.Nxe5 Nxe5 13.dxe5 dxe4 14.Bc5 Qxd1 15.Rxd1
Re8 16.Nc3 Nc6 17.Nxe4 Rxe5 18.Rac1 Bg4 19.f3 Rxe4 20.fxg4 Rxg4 21.b4 a6 
22.Rd7 Rb8 23.Be3 Bb2 24.Rf1 Re8 25.Rfxf7 Nd8 26.Bd5 Nxf7 27.Bxf7+ Kh8 28.
Bxe8 Re4 29.Rxb7 Rxe3 30.Bc6 Rxa3 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Braga, Cicero"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[ECO "A48"]
[EventDate "1978.09.16"]
[PlyCount "108"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 O-O 5.e4 d6 6.c3 Nbd7 7.Bc4 e5 8.dxe5 
dxe5 9.O-O Qe7 10.Qe2 h6 11.Bh4 g5 12.Bg3 Nh5 13.Rfe1 Nf4 14.Bxf4 gxf4 15.
h3 Kh8 16.Nh2 Nf6 17.Kh1 Rg8 18.Rad1 Bf8 19.Ndf3 Bd7 20.Bb5 c6 21.Bc4 Bg7 
22.Nh4 Rae8 23.Rxd7 Qxd7 24.Rd1 Qc7 25.Ng4 Rd8 26.Rg1 Nxg4 27.Qxg4 Bf8 28.
Qf3 Qe7 29.Nf5 Qf6 30.b4 Rg5 31.Rd1 Be7 32.Rxd8+ Bxd8 33.Qd3 Rg8 34.Nd6 
Be7 35.Nxf7+ Kg7 36.Qd7 Rf8 37.Qg4+ Kh7 38.Qd7 Rxf7 39.Bxf7 Qxf7 40.Qxb7 
Kg7 41.Qxa7 Bf6 42.Qc5 Qe6 43.a4 Be7 44.Qa7 Kf7 45.a5 Qc4 46.a6 c5 47.Qb7 
Qf1+ 48.Kh2 f3 49.gxf3 Qxf2+ 50.Kh1 Qxf3+ 51.Kh2 Kg6 52.Qxe7 Qf2+ 53.Kh1 
Qf1+ 54.Kh2 Qf2+ 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Frias Pablaza, Victor"]
[Black "Segal, Alexandru Sorin"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2395"]
[ECO "B04"]
[EventDate "1978.09.16"]
[PlyCount "73"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Be2 Bg7 6.O-O Nc6 7.c4 Nb6 8.exd6 
cxd6 9.d5 Ne5 10.Nxe5 Bxe5 11.Nc3 Bd7 12.Bh6 Rc8 13.Qb3 Qc7 14.Rac1 a6 15.
Ne4 Na4 16.Qe3 Nc5 17.Nc3 Na4 18.Nxa4 Bxa4 19.b3 Bd7 20.b4 a5 21.a3 b6 22.
Rfe1 axb4 23.axb4 Bf6 24.c5 bxc5 25.bxc5 Ra8 26.Bf1 Rg8 27.Bf4 e5 28.dxe6 
Bxe6 29.Bb5+ Kd8 30.Bxd6 Qa7 31.Rcd1 Kc8 32.Bc6 Bd8 33.Bxa8 Qxa8 34.c6 Re8
35.Ra1 Qxc6 36.Rec1 Bc4 37.Rxc4 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Gonzalez Bernal, Manuel"]
[Black "Estrada Degrandi, Walter"]
[Result "1-0"]
[BlackElo "2350"]
[ECO "C41"]
[EventDate "1978.09.16"]
[PlyCount "107"]

1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.a4 Be7 6.Nc3 h6 7.O-O Ngf6 8.a5 O-O 
9.h3 Nxe4 10.Nxe4 d5 11.Nxe5 Nxe5 12.dxe5 dxc4 13.Qe2 Qd4 14.Ng3 Rd8 15.
Kh2 Bh4 16.Ra3 Rd5 17.f4 Bxg3+ 18.Rxg3 Bf5 19.Rc3 Be6 20.Be3 Qe4 21.Rxc4 
Rd2 22.Qxd2 Bxc4 23.Re1 Qd5 24.Qb4 Qb5 25.Qxb5 cxb5 26.f5 Bd5 27.g4 Rc8 
28.Re2 a6 29.Rd2 Be4 30.c3 Re8 31.Kg3 Rxe5 32.Rd8+ Kh7 33.Kf4 Rd5 34.Rf8 
Bg2 35.Rxf7 Kg8 36.Rc7 Rd6 37.Bd4 g5+ 38.Ke5 Rd8 39.Kf6 Rd6+ 40.Ke7 Rc6 
41.Rxb7 Rc8 42.Ra7 Ra8 43.Rxa8+ Bxa8 44.Ke6 Be4 45.f6 Bg6 46.Ke7 Bf7 47.
Bf2 Bg6 48.h4 gxh4 49.Bxh4 Bf7 50.Bf2 Bg6 51.Be3 h5 52.g5 h4 53.Bf4 h3 54.
b3 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Hase, Juan Carlos"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2400"]
[ECO "D88"]
[EventDate "1978.09.16"]
[PlyCount "36"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Bc4 Bg7 8.Ne2 
Nc6 9.Be3 cxd4 10.cxd4 b5 11.Bxb5 Qa5+ 12.Nc3 Qxc3+ 13.Bd2 Qxd4 14.Bxc6+ 
Bd7 15.Bxa8 Qxa1 16.Qxa1 Bxa1 17.O-O O-O 18.Rxa1 Rxa8 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "5"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2385"]
[ECO "A37"]
[EventDate "1978.09.16"]
[PlyCount "18"]

1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.Nf3 e6 6.O-O Nge7 7.d3 O-O 8.Rb1 d5 
9.cxd5 Nxd5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Braga, Cicero"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[BlackElo "2375"]
[ECO "B08"]
[EventDate "1978.09.16"]
[PlyCount "50"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 b6 6.O-O Bb7 7.Re1 Nxe4 8.Bb5+ 
c6 9.Bxc6+ Nxc6 10.Nxe4 O-O 11.Bg5 h6 12.Bd2 f5 13.Ng3 e5 14.dxe5 dxe5 15.
Bc3 e4 16.Bxg7 Kxg7 17.Nd2 Qf6 18.Qc1 Rac8 19.Ne2 Ne5 20.Nf4 Kh7 21.Re3 g5
22.Ne2 f4 23.Rc3 e3 24.Rxc8 Rxc8 25.Nf1 Qc6 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Bronstein, Luis Marcos"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2370"]
[ECO "A05"]
[EventDate "1978.09.16"]
[PlyCount "27"]

1.Nf3 Nf6 2.c4 g6 3.b3 Bg7 4.Bb2 c5 5.g3 Nc6 6.Bg2 d6 7.O-O O-O 8.d4 cxd4 
9.Nxd4 Bd7 10.Nc3 a6 11.c5 dxc5 12.Nxc6 Bxc6 13.Bxc6 bxc6 14.Na4 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Emma, Jaime"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2410"]
[ECO "C68"]
[EventDate "1978.09.16"]
[PlyCount "22"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.c3 Qd3 8.hxg4 
hxg4 9.Nxe5 Bd6 10.Nxd3 Bh2+ 11.Kh1 Bg3+ {= Braga-Milos Garanhuns 86} 
1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Estrada Degrandi, Walter"]
[Black "Frias Pablaza, Victor"]
[Result "0-1"]
[WhiteElo "2350"]
[BlackElo "2400"]
[ECO "D00"]
[EventDate "1978.09.16"]
[PlyCount "66"]

1.Nf3 Nf6 2.d4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Be2 Nbd7 7.O-O c6 8.Ne5 
Ne8 9.h4 f6 10.Nxd7 Qxd7 11.Na4 e5 12.Bg3 Nd6 13.Nc5 Qe7 14.b3 b6 15.Na4 
Nf5 16.Kh2 Nxg3 17.fxg3 f5 18.c4 f4 19.exf4 exf4 20.g4 Qxh4+ 21.Kg1 h5 22.
Qd2 Bxg4 23.Bf3 Bxf3 24.Rxf3 c5 25.Rh3 Qg4 26.Rf1 Bxd4+ 27.Kh1 dxc4 28.
bxc4 Rae8 29.Nc3 Re3 30.Rxe3 fxe3 31.Rxf8+ Kxf8 32.Qe1 Bxc3 33.Qxc3 Qh4+ 
0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Segal, Alexandru Sorin"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2360"]
[ECO "A07"]
[EventDate "1978.09.16"]
[PlyCount "44"]

1.Nf3 d5 2.b3 Bf5 3.Bb2 e6 4.g3 Nf6 5.Bg2 Be7 6.d3 h6 7.Nbd2 O-O 8.O-O c6 
9.Qe1 a5 10.e4 Bh7 11.a4 Na6 12.e5 Nd7 13.Qe2 Nb4 14.Ne1 Kh8 15.f4 f6 16.
Ndf3 Na6 17.Bh3 f5 18.Nd4 Nc7 19.Kh1 c5 20.Ndf3 d4 21.Nd2 Nd5 22.Nc4 N7b6 
1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "6"]
[White "Silva Sanchez, Carlos"]
[Black "Gonzalez Bernal, Manuel"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[ECO "B91"]
[EventDate "1978.09.16"]
[PlyCount "84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be6 8.Bg2 
Be7 9.O-O b5 10.h3 h5 11.f4 Qb6+ 12.Kh1 Nc6 13.Nd5 Qd8 14.Be3 Rb8 15.b3 
Na5 16.Qd2 Bxd5 17.exd5 Nd7 18.a4 b4 19.Rae1 O-O 20.Bf3 Qc8 21.Ng1 h4 22.
g4 Bf6 23.Qf2 Nb7 24.g5 exf4 25.Bxf4 Be5 26.Qxh4 Bxf4 27.Be4 g6 28.Rxf4 
Qc3 29.Re2 Nbc5 30.Bg2 Rbe8 31.Qf2 Re5 32.Rc4 Qb2 33.Rxb4 Rxg5 34.Rf4 Re5 
35.Qd4 Qc1 36.Rf1 Qh6 37.b4 Rxe2 38.Nxe2 Nxa4 39.Qa7 Nab6 40.Qxa6 Qd2 41.
Nf4 Qxb4 42.Qe2 Ne5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Bronstein, Luis Marcos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2375"]
[ECO "B45"]
[EventDate "1978.09.16"]
[PlyCount "83"]

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 e5 13.g3 Qd8 14.Bg2 Nxc3 
15.Bxc3 Bf5 16.Be4 Bxe4 17.Qxe4 Nc6 18.f4 O-O 19.fxe5 Re8 20.O-O Re6 21.
Rae1 Qe7 22.Qc4 Kh8 23.Qf4 Kg8 24.Qc4 h6 25.Rf5 Re8 26.Ref1 Qc7 27.Kg2 Qd7
28.Rxf7 Qxf7 29.Rxf7 Kxf7 30.Kf3 Re7 31.Qd5 Ke8 32.Ke4 Rf6 33.b4 Nd8 34.b5
Nf7 35.Kd3 Rf5 36.Kc4 Nxe5+ 37.Kb3 Rg5 38.Bb4 Rf7 39.Qe6+ Kd8 40.h4 Rxg3+ 
41.c3 Re3 42.Bd6 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Gonzalez Bernal, Manuel"]
[Result "1-0"]
[WhiteElo "2370"]
[ECO "B23"]
[EventDate "1978.09.16"]
[PlyCount "78"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.Bd3 e6 7.Nxd4 cxd4 8.Nb5 
d6 9.c3 Nh6 10.Nxd4 O-O 11.Nf3 e5 12.fxe5 Ng4 13.Qe2 Nxe5 14.O-O Bg4 15.
Bc2 Nxf3+ 16.gxf3 Bh3 17.Re1 d5 18.d4 dxe4 19.fxe4 f5 20.exf5 gxf5 21.Bf4 
Qh4 22.Qf2 Bf6 23.Qxh4 Bxh4 24.Re3 Bg4 25.Bb3+ Kg7 26.Re6 Bf6 27.Rae1 Bf3 
28.R1e3 Bh5 29.Rh3 Bg6 30.Bh6+ Kh8 31.Rhe3 Bg7 32.Rxg6 hxg6 33.Bg5 f4 34.
Rh3+ Bh6 35.Bxh6 Rf5 36.Bxf4+ Rh5 37.Rxh5+ gxh5 38.Be5+ Kh7 39.Be6 b5 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Emma, Jaime"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2360"]
[ECO "C00"]
[EventDate "1978.09.16"]
[PlyCount "51"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 dxe4 5.dxe4 Bc5 6.Bd3 e5 7.O-O Qe7 8.c3 
a6 9.b4 Ba7 10.Nc4 Bg4 11.Ncxe5 Nbd7 12.Nxg4 Nxg4 13.h3 Nge5 14.Bc2 O-O-O 
15.Nxe5 Nxe5 16.Qe2 Rd7 17.Be3 Bxe3 18.Qxe3 Rhd8 19.Rfd1 Nc4 20.Rxd7 Rxd7 
21.Qf4 f6 22.e5 Nxe5 23.Bf5 Kb8 24.Bxd7 Qxd7 25.Qe3 h6 26.a4 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Estrada Degrandi, Walter"]
[Black "Braga, Cicero"]
[Result "1/2-1/2"]
[WhiteElo "2350"]
[ECO "E99"]
[EventDate "1978.09.16"]
[PlyCount "49"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.d4 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.Be3 c5 13.Nd3 f4 14.Bf2 g5 15.Rb1 h5 16.h3
Ng6 17.b4 b6 18.bxc5 bxc5 19.Qa4 hxg4 20.hxg4 Ne8 21.Qc6 Bd7 22.Qa6 Bc8 
23.Qc6 Bd7 24.Qa6 Bc8 25.Qc6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Hase, Juan Carlos"]
[Black "Frias Pablaza, Victor"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2400"]
[ECO "B53"]
[EventDate "1978.09.16"]
[PlyCount "70"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Bd7 5.Bg5 Nc6 6.Qd2 g6 7.Nc3 Bg7 8.Nd5 
h6 9.Be3 Nf6 10.Nxf6+ Bxf6 11.c3 Qa5 12.Be2 Bg4 13.O-O Bxf3 14.Bxf3 Bg5 
15.Be2 Bxe3 16.Qxe3 Kf8 17.Rfd1 Qg5 18.f4 Qf6 19.Rd5 Kg7 20.Rad1 Rad8 21.
Bb5 a6 22.Bxc6 bxc6 23.Ra5 Ra8 24.b4 Rhd8 25.Rf1 e6 26.h3 Qe7 27.Kh1 Rdc8 
28.Qd3 d5 29.f5 dxe4 30.Qxe4 Qf6 31.Qc4 exf5 32.Rxa6 Rxa6 33.Qxa6 Rd8 34.
Qc4 Rd2 35.Rc1 Rxg2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "7"]
[White "Silva Sanchez, Carlos"]
[Black "Trois, Francisco"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2385"]
[ECO "B06"]
[EventDate "1978.09.16"]
[PlyCount "66"]

1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.Nge2 c6 5.a4 a5 6.g3 Nf6 7.Bg2 O-O 8.O-O Na6 
9.h3 e5 10.Be3 Nb4 11.f4 exf4 12.Nxf4 d5 13.e5 Ne8 14.Na2 Nxa2 15.Rxa2 f6 
16.Nd3 Bf5 17.exf6 Nxf6 18.c3 Qe7 19.Bg5 Rae8 20.Ne5 h6 21.Bh4 Qe6 22.g4 
Be4 23.Nd3 Bxg2 24.Kxg2 Ne4 25.Ra1 g5 26.Bf2 Qd6 27.Kh1 Re7 28.Qc2 Rf3 29.
Kg2 Ref7 30.Qe2 Nxf2 31.Ne5 Bxe5 32.dxe5 Qe6 33.Rae1 R3f4 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Braga, Cicero"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[BlackElo "2405"]
[ECO "A07"]
[EventDate "1978.09.16"]
[PlyCount "133"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d5 6.Nc3 b6 7.e4 dxe4 8.Ng5 Bb7
9.Ngxe4 Nxe4 10.Nxe4 Kh8 11.f4 e6 12.Qe2 Nc6 13.c3 Qd7 14.d4 Rae8 15.Be3 
Qc8 16.Rfe1 Ne7 17.Rad1 Rd8 18.Bf3 Qa8 19.Bf2 Rd7 20.Ng5 Bxf3 21.Nxf3 h5 
22.h3 Nd5 23.c4 Nf6 24.Ne5 Rdd8 25.g4 hxg4 26.hxg4 Kg8 27.Rd3 Rd6 28.Rf3 
Re8 29.Qe3 Qd8 30.Rh3 Nd7 31.b4 Nf8 32.b5 Qa8 33.Bh4 a6 34.a4 axb5 35.axb5
Qa4 36.Qc3 Qa8 37.Bf2 Nd7 38.Nc6 Nf6 39.Ra1 Qc8 40.Qf3 Qd7 41.Qg2 Nh7 42.
Rd1 g5 43.Ne5 Qe7 44.Qh2 Nf8 45.Re1 Ra8 46.fxg5 Ng6 47.Nxg6 fxg6 48.Bg3 
Rxd4 49.Be5 Qc5 50.Rh8+ Kf7 51.Qf2+ Ke7 52.Bf6+ Kd7 53.Rxa8 Bxf6 54.gxf6 
Rxg4+ 55.Kf1 Qxc4+ 56.Re2 Rf4 57.Qxf4 Qxf4+ 58.Rf2 Qc1+ 59.Kg2 Qg5+ 60.Kh2
Qe5+ 61.Kg1 Qe1+ 62.Rf1 Qg3+ 63.Kh1 Qh4+ 64.Kg1 Qd4+ 65.Kh2 Qe5+ 66.Kg1 
Qc5+ 67.Kh2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2410"]
[ECO "A54"]
[EventDate "1978.09.16"]
[PlyCount "147"]

1.d4 Nf6 2.Nf3 d6 3.Bg5 Nbd7 4.c4 e5 5.Nc3 Be7 6.e3 O-O 7.Be2 h6 8.Bh4 
exd4 9.Nxd4 Re8 10.O-O Nc5 11.Qc2 a5 12.Rad1 Nfe4 13.Bxe7 Rxe7 14.Nd5 Re8 
15.f3 Nf6 16.Nxf6+ Qxf6 17.e4 Bd7 18.Rfe1 Re5 19.Bf1 Rae8 20.Qd2 Qe7 21.
Nc2 Bc6 22.b3 h5 23.Qf2 g6 24.h4 f6 25.g3 Kg7 26.Bh3 Qf7 27.Nd4 Bd7 28.
Bxd7 Qxd7 29.Kg2 Qf7 30.Nc2 Kh7 31.Rd2 b6 32.Red1 f5 33.exf5 Qxf5 34.Nd4 
Qf7 35.Re2 Qf6 36.Rxe5 Rxe5 37.Nc2 Qf5 38.Re1 Nd3 39.Rxe5 Qxe5 40.Qe3 Qxe3
41.Nxe3 Nc1 42.Nd5 Nxa2 43.Nxc7 Nc1 44.Kf2 Nxb3 45.Ke3 a4 46.Nb5 Kg7 47.
Kd3 Kf6 48.Nxd6 a3 49.Ne4+ Ke5 50.Nc3 Nc5+ 51.Kc2 Kd4 52.Nb5+ Ke3 53.g4 
Kxf3 54.gxh5 gxh5 55.Nxa3 Kg3 56.Kd2 Kxh4 57.Ke2 Kg3 58.Nc2 Kf4 59.Kf2 
Nd3+ 60.Kg2 Ne5 61.Kh3 Kg5 62.Ne3 Nd3 63.Kh2 Nf4 64.Kg3 h4+ 65.Kf3 Nd3 66.
Kg2 Ne5 67.Kh3 Ng6 68.Kg2 Nf4+ 69.Kf3 h3 70.Kg3 Kg6 71.Ng4 Kf5 72.Nf2 Ke5 
73.Ng4+ Ke4 74.Nf2+ 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Frias Pablaza, Victor"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2370"]
[ECO "B16"]
[EventDate "1978.09.16"]
[PlyCount "81"]

1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6 6.d4 Bg4 7.c3 e6 8.g3 
Nd7 9.Bg2 Qc7 10.O-O O-O-O 11.Qa4 Kb8 12.Bf4 Bd6 13.Bxd6 Qxd6 14.Nd2 h5 
15.Nc4 Qc7 16.Ne3 Be2 17.Rfe1 Bb5 18.Qb3 f5 19.c4 Ba6 20.f4 h4 21.Qc3 hxg3
22.hxg3 Rhg8 23.Nf1 c5 24.Rad1 Nb6 25.b3 cxd4 26.Rxd4 Rxd4 27.Qxd4 Rd8 28.
Qe5 Nc8 29.Qxc7+ Kxc7 30.Bf3 b6 31.Kf2 Bb7 32.Bh5 Nd6 33.Ke3 a5 34.Rd1 Kc6
35.Nd2 Rg8 36.Rg1 Kc5 37.a3 Rh8 38.Be2 Be4 39.b4+ axb4 40.axb4+ Kxb4 41.
Rb1+ 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Segal, Alexandru Sorin"]
[Black "Estrada Degrandi, Walter"]
[Result "1-0"]
[WhiteElo "2395"]
[BlackElo "2350"]
[ECO "D78"]
[EventDate "1978.09.16"]
[PlyCount "55"]

1.d4 d5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 c6 7.Nbd2 Ne4 8.e3 f5 
9.Qc2 Nd7 10.b3 e6 11.Bb2 a5 12.Nxe4 fxe4 13.Nd2 Qg5 14.Rae1 Nf6 15.f3 
exf3 16.Nxf3 Qf5 17.Qc1 Qh5 18.Ba3 Rf7 19.Ne5 Ng4 20.Rxf7 Qxh2+ 21.Kf1 
Bxe5 22.Rf8+ Kg7 23.dxe5 Qxg3 24.e4 Bd7 25.Qf4 Nh2+ 26.Kg1 Nf3+ 27.Qxf3 
Qxe1+ 28.Bf1 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Trois, Francisco"]
[Black "Bronstein, Luis Marcos"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2400"]
[ECO "D35"]
[EventDate "1978.09.16"]
[PlyCount "54"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.cxd5 exd5 6.e3 c6 7.Bd3 Bg4 8.Nge2 
Nbd7 9.Qc2 Bxe2 10.Qxe2 Ne4 11.Bf4 Ndf6 12.O-O O-O 13.Qc2 Nd6 14.Bg3 g6 
15.f3 Nh5 16.Bf2 f5 17.Ne2 Bh4 18.g3 Bg5 19.Rae1 Qd7 20.Kg2 Rae8 21.Nc3 
Re7 22.e4 fxe4 23.fxe4 Qg4 24.e5 Nf4+ 25.Kg1 Nh3+ 26.Kg2 Qf3+ 27.Kxh3 Rf4 
0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "8"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2390"]
[ECO "C64"]
[EventDate "1978.09.16"]
[PlyCount "38"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.d3 d6 5.Nbd2 Nf6 6.Nc4 O-O 7.Ne3 Nd4 8.Bc4 
b5 9.Bb3 Nxb3 10.axb3 d5 11.exd5 Nxd5 12.Nxe5 Nxe3 13.fxe3 Bb7 14.Nf3 Re8 
15.O-O Bxe3+ 16.Bxe3 Rxe3 17.Qd2 Re6 18.Qf2 a6 19.Rae1 Rxe1 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Bronstein, Luis Marcos"]
[Black "Braga, Cicero"]
[Result "1-0"]
[WhiteElo "2400"]
[ECO "E90"]
[EventDate "1978.09.16"]
[PlyCount "132"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be3 Bg4 7.Qd2 Bxf3 8.gxf3 
e5 9.dxe5 dxe5 10.Qxd8 Rxd8 11.Nd5 Ne8 12.O-O-O Nc6 13.h4 Nd4 14.f4 c6 15.
fxe5 Ne6 16.f4 Bh6 17.f5 Bxe3+ 18.Nxe3 Nc5 19.h5 Rxd1+ 20.Nxd1 Nxe4 21.
hxg6 hxg6 22.fxg6 Ng3 23.gxf7+ Kxf7 24.Rh7+ Kg8 25.Bd3 Rc8 26.Bc2 Ne2+ 27.
Kb1 Ng7 28.Rh6 Re8 29.Bh7+ Kf8 30.Rf6+ Ke7 31.Ne3 Nd4 32.Rd6 Rd8 33.c5 
Nge6 34.b4 Rh8 35.Nf5+ Nxf5 36.Bxf5 Nf8 37.Bc8 a5 38.bxa5 Rh4 39.a6 bxa6 
40.Rxc6 a5 41.Bf5 Rf4 42.Rf6 Nd7 43.Bxd7 Rb4+ 44.Kc2 Kxd7 45.Rd6+ Kc7 46.
Kd3 Rb1 47.a4 Re1 48.Kd4 Rd1+ 49.Kc4 Re1 50.e6 Re5 51.Kb5 Kb7 52.Kc4 Kc7 
53.Kd4 Re1 54.Kd5 Rd1+ 55.Ke5 Re1+ 56.Kf6 Rf1+ 57.Kg7 Re1 58.Kf7 Rf1+ 59.
Ke8 Rf5 60.e7 Rf1 61.Rh6 Rf2 62.Rh8 Kb7 63.Kd7 Rd2+ 64.Ke6 Re2+ 65.Kf6 
Rf2+ 66.Kg5 Ka6 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1-0"]
[WhiteElo "2370"]
[BlackElo "2360"]
[ECO "C02"]
[EventDate "1978.09.16"]
[PlyCount "147"]

1.e4 e6 2.d4 d5 3.e5 b6 4.c3 Qd7 5.f4 Ba6 6.Bxa6 Nxa6 7.Qd3 Nb8 8.Ne2 Ne7 
9.O-O h5 10.Nd2 Nbc6 11.Nf3 Nf5 12.g3 Be7 13.h3 Na5 14.Kg2 Nb7 15.Bd2 c5 
16.Rh1 c4 17.Qc2 O-O-O 18.g4 Nh6 19.Nh2 Rdg8 20.Ng3 hxg4 21.hxg4 f5 22.
gxf5 exf5 23.Nf3 Nd8 24.Rh3 g6 25.Rah1 Nhf7 26.Rxh8 Rxh8 27.Rxh8 Nxh8 28.
Nh1 Ne6 29.Nf2 Nf7 30.Nh3 Nfd8 31.Be1 Nc6 32.Bh4 Bxh4 33.Nxh4 Qh7 34.Qf2 
Qh5 35.Nf3 Kd7 36.Qg3 Ne7 37.Nhg5 Ng7 38.Qh4 Qxh4 39.Nxh4 Ne6 40.Nxe6 Kxe6
41.Nf3 Ng8 42.Kg3 Nh6 43.Kh4 Kf7 44.Kg5 Kg7 45.e6 Ng8 46.Ne5 Ne7 47.a4 a5 
48.Nxg6 Nxg6 49.Kxf5 Ne7+ 50.Ke5 Kg6 51.f5+ Nxf5 52.Kxd5 Kf6 53.Kxc4 Kxe6 
54.Kb5 Nd6+ 55.Kc6 Ke7 56.d5 Nc4 57.Kc7 Nd6 58.Kxb6 Kd7 59.b3 Ne4 60.c4 
Nd2 61.Kxa5 Nxb3+ 62.Kb6 Nd2 63.c5 Nc4+ 64.Kb7 Kd8 65.c6 Nd6+ 66.Kb8 Ne8 
67.a5 Nc7 68.d6 Na6+ 69.Kb7 Nc5+ 70.Kb6 Na4+ 71.Kb5 Nc3+ 72.Kb4 Ne4 73.a6 
Nxd6 74.a7 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Emma, Jaime"]
[Black "Trois, Francisco"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2385"]
[ECO "B07"]
[EventDate "1978.09.16"]
[PlyCount "101"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nge2 Bg7 5.g3 O-O 6.Bg2 e5 7.O-O Nbd7 8.h3 Re8
9.Re1 c6 10.a4 a5 11.b3 exd4 12.Nxd4 Nc5 13.Bb2 Qb6 14.Qd2 Bd7 15.Rad1 
Rad8 16.Kh2 Bc8 17.Qc1 Re7 18.f3 h5 19.Nde2 Ne6 20.Ba3 Red7 21.f4 Bh6 22.
Rf1 d5 23.exd5 cxd5 24.Bb2 Ng7 25.Nd4 Re7 26.Qd2 Ne4 27.Qd3 f5 28.Qb5 Qxb5
29.Ndxb5 Red7 30.h4 Ne8 31.Ne2 N8f6 32.Bf3 Bg7 33.Bd4 Ng4+ 34.Bxg4 hxg4 
35.Bb6 Re8 36.Nc7 Ree7 37.Nxd5 Re6 38.Bxa5 Ng5 39.Ng1 Nf3+ 40.Nxf3 Re2+ 
41.Kh1 gxf3 42.c4 Kf7 43.Rxf3 Rd6 44.Re1 Rxe1+ 45.Bxe1 Bd7 46.Bc3 Bc6 47.
Bxg7 Kxg7 48.Kg1 Re6 49.Kf2 Re4 50.Rd3 Re6 51.Re3 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Gonzalez Bernal, Manuel"]
[Black "Frias Pablaza, Victor"]
[Result "0-1"]
[BlackElo "2400"]
[ECO "B83"]
[EventDate "1978.09.16"]
[PlyCount "36"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O Nc6 8.Be3 
Bd7 9.f4 O-O 10.Nb3 Qc7 11.a4 Rfd8 12.Bf3 Na5 13.Nxa5 Qxa5 14.Qd2 Bc6 15.
e5 dxe5 16.Nd5 Rxd5 17.Bxd5 Qxd5 18.fxe5 Bc5 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Hase, Juan Carlos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2375"]
[ECO "C26"]
[EventDate "1978.09.16"]
[PlyCount "79"]

1.e4 e5 2.Nc3 Nf6 3.g3 d6 4.Bg2 c6 5.Nf3 b5 6.d3 Be7 7.h3 O-O 8.O-O Nbd7 
9.Nh4 g6 10.f4 Ne8 11.Nf3 Ng7 12.d4 b4 13.Ne2 exd4 14.Nfxd4 Bb7 15.c4 Nb6 
16.b3 Qd7 17.Bb2 Rae8 18.Nc2 f5 19.exf5 Nxf5 20.Qd3 c5 21.Rad1 Bf6 22.Bxf6
Rxf6 23.Rfe1 Bxg2 24.Kxg2 d5 25.cxd5 Rd6 26.Ng1 Rxe1 27.Rxe1 Rxd5 28.Qe4 
Rd2+ 29.Re2 Qd3 30.Qxd3 Rxd3 31.Nf3 Rc3 32.Kf2 a5 33.Nce1 a4 34.Re6 axb3 
35.axb3 Nd5 36.Re5 Nf6 37.g4 Nd6 38.Re3 Nde4+ 39.Ke2 Ng3+ 40.Kf2 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "9"]
[White "Silva Sanchez, Carlos"]
[Black "Segal, Alexandru Sorin"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2395"]
[ECO "E91"]
[EventDate "1978.09.16"]
[PlyCount "58"]

1.e4 g6 2.d4 Bg7 3.c4 c5 4.d5 d6 5.Nc3 Nf6 6.Nf3 O-O 7.Be2 a6 8.a4 e5 9.
Bg5 h6 10.Bh4 Nbd7 11.Nd2 Qc7 12.a5 Nh7 13.f3 f5 14.Qc2 Ndf6 15.Bf2 Nh5 
16.b4 cxb4 17.Bb6 Qe7 18.Na2 Nf4 19.Bf1 fxe4 20.Nxe4 Ng5 21.Nxb4 Nxe4 22.
fxe4 Qg5 23.Ra3 Bd7 24.Qd2 Qe7 25.Rc3 Nh5 26.g3 Rf7 27.Bg2 Kh7 28.Rf1 
Rxf1+ 29.Kxf1 Nf6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Braga, Cicero"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[BlackElo "2390"]
[ECO "C50"]
[EventDate "1978.09.16"]
[PlyCount "30"]

1.e4 Nc6 2.Nf3 e5 3.Bc4 Bc5 4.O-O d6 5.c3 Nf6 6.d4 Bb6 7.dxe5 dxe5 8.Qxd8+
Nxd8 9.Nxe5 Nxe4 10.Nd2 Nd6 11.Bb3 Be6 12.Bxe6 Nxe6 13.Ndc4 Nxc4 14.Nxc4 
O-O-O 15.Nxb6+ axb6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Gonzalez Bernal, Manuel"]
[Result "0-1"]
[WhiteElo "2360"]
[ECO "A45"]
[EventDate "1978.09.16"]
[PlyCount "124"]

1.d4 Nf6 2.Bg5 Ne4 3.Bf4 c5 4.d5 Qb6 5.Qc1 c4 6.e3 Qa5+ 7.Nc3 d6 8.Ne2 g5 
9.Bg3 Bg7 10.f3 Nxc3 11.Nxc3 Bxc3+ 12.bxc3 Qxc3+ 13.Kf2 Na6 14.a4 Bd7 15.
Ra3 Qb4 16.Qa1 f6 17.Be2 Qa5 18.h4 g4 19.Rd1 Nb4 20.Qc3 Qc5 21.Qxc4 Qxc4 
22.Bxc4 Rc8 23.Bb3 Rc3 24.Rd2 gxf3 25.gxf3 a5 26.Ke2 Bf5 27.Ra1 Bxc2 28.
Bxc2 Nxc2 29.Rb1 Rg8 30.Bf2 Rg2 31.Kf1 Rg7 32.Rxb7 Nxe3+ 33.Bxe3 Rxe3 34.
Kf2 Ra3 35.Rd4 Ra2+ 36.Ke3 f5 37.Rb5 Rg3 38.Kf4 Rh3 39.Kxf5 Rxf3+ 40.Kg4 
Raa3 41.Rxa5 Rg3+ 42.Kh5 Raf3 43.Rg4 Rf5+ 44.Rg5 Rgxg5+ 45.hxg5 Kf7 46.Ra8
Rxd5 47.a5 Kg7 48.a6 h6 49.Re8 Rxg5+ 50.Kh4 Ra5 51.Rxe7+ Kf6 52.Ra7 Ke6 
53.Kg4 h5+ 54.Kh4 d5 55.Kxh5 d4+ 56.Kg4 d3 57.Rh7 Ra1 58.Rh2 Kd5 59.Kf3 
Kd4 60.Rh6 d2 61.Rd6+ Kc3 62.Rc6+ Kb4 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Estrada Degrandi, Walter"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2350"]
[BlackElo "2405"]
[ECO "B26"]
[EventDate "1978.09.16"]
[PlyCount "82"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nge2 e5 7.Nd5 Nge7 8.Bg5 h6 
9.Bf6 Bxf6 10.Nxf6+ Kf8 11.c4 Kg7 12.Nd5 Nxd5 13.cxd5 Ne7 14.O-O a5 15.Qd2
Bd7 16.f4 f6 17.Rf2 Rf8 18.Raf1 Qb6 19.a3 a4 20.h3 Ng8 21.g4 Qd8 22.fxe5 
dxe5 23.Qe3 Qe7 24.Ng3 Qd6 25.Bf3 Ne7 26.Be2 Rf7 27.Rg2 Raf8 28.h4 b6 29.
h5 g5 30.Rc1 Ra8 31.Rf2 Rff8 32.Qf3 Ra7 33.Nf1 b5 34.Ne3 Ra6 35.Bf1 Rc8 
36.Rfc2 Ra7 37.Be2 Qb6 38.Qf2 Rac7 39.Kg2 Kf7 40.Rf1 Rf8 41.Rfc1 Rb8 
1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Segal, Alexandru Sorin"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2400"]
[ECO "C24"]
[EventDate "1978.09.16"]
[PlyCount "37"]

1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Qe2 Bc5 5.Nf3 d6 6.h3 O-O 7.O-O Qe7 8.Nc3 b5 
9.Bb3 Na6 10.Nd1 Nc7 11.Be3 Nh5 12.Kh2 Bxe3 13.Nxe3 Nf4 14.Qd2 Qf6 15.Ng1 
a5 16.a4 b4 17.Rad1 Be6 18.Bxe6 Nfxe6 19.Ne2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Trois, Francisco"]
[Black "Hase, Juan Carlos"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2410"]
[ECO "A14"]
[EventDate "1978.09.16"]
[PlyCount "145"]

1.Nf3 d5 2.c4 e6 3.b3 Nf6 4.Bb2 Be7 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d3 d4 9.
Na3 e5 10.Nc2 Bg4 11.h3 Bf5 12.a3 a5 13.Nh4 Be6 14.e4 dxe3 15.Nxe3 Qd7 16.
Kh2 Rfd8 17.Nf3 Qxd3 18.Nxe5 Nxe5 19.Bxe5 Qxd1 20.Rfxd1 Rxd1 21.Rxd1 Nd7 
22.Bc3 a4 23.b4 Rb8 24.f4 g6 25.b5 Nb6 26.Be5 Rd8 27.Rxd8+ Bxd8 28.Bf1 Nd7
29.Bc3 Bf6 30.Bxf6 Nxf6 31.Bg2 b6 32.g4 h5 33.Kg3 hxg4 34.hxg4 Kf8 35.f5 
gxf5 36.gxf5 Bc8 37.Kf4 Ke7 38.Nd1 Ne8 39.Nc3 Nd6 40.Nd5+ Kd8 41.Nxb6 Bxf5
42.Ke5 Kc7 43.Na8+ Kd7 44.Nb6+ Kc7 45.Nd5+ Kd7 46.Nf6+ Ke7 47.Bc6 Nxc4+ 
48.Kxf5 Nxa3 49.b6 Nc4 50.Nd5+ Kd8 51.b7 Nd6+ 52.Kf6 Nxb7 53.Bxb7 a3 54.
Nc3 c4 55.Bd5 a2 56.Nxa2 Kd7 57.Nc3 Kd6 58.Bxf7 Kc5 59.Ke5 Kb4 60.Kd4 Kb3 
61.Bxc4+ Kb2 62.Kd3 Ka1 63.Nb5 Kb2 64.Kd2 Ka1 65.Kc3 Kb1 66.Na3+ Ka1 67.
Nc2+ Kb1 68.Bb3 Kc1 69.Ba2 Kd1 70.Nd4 Ke1 71.Kd3 Kf2 72.Ne2 Kf3 73.Be6 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "10"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2370"]
[ECO "C65"]
[EventDate "1978.09.16"]
[PlyCount "89"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Qe2 d6 5.c3 Be7 6.d4 Bd7 7.Nbd2 exd4 8.cxd4 
O-O 9.O-O a6 10.Bd3 Nb4 11.Re1 Nxd3 12.Qxd3 d5 13.e5 Ne8 14.Nf1 Bb5 15.Qe3
Bxf1 16.Rxf1 c6 17.Bd2 Qd7 18.Ne1 Nc7 19.Nd3 Ne6 20.b4 f5 21.f4 Kh8 22.Nc5
Bxc5 23.bxc5 Qf7 24.Rab1 Rad8 25.Rf3 Rd7 26.Qe2 Qe8 27.Rb2 Qd8 28.Kf1 Qe8 
29.Ke1 g6 30.Kd1 Rff7 31.Kc1 Qe7 32.Kb1 Kg8 33.Be1 Rg7 34.Qe3 h6 35.h3 Qd8
36.g4 Rdf7 37.Bg3 Qa5 38.Qd2 Qxd2 39.Rxd2 Kh7 40.Rdf2 Rg8 41.gxf5 Rxf5 42.
Kc2 Rgf8 43.Kc3 R8f7 44.Kb4 Kg7 45.Ka5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Bronstein, Luis Marcos"]
[Black "Estrada Degrandi, Walter"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2350"]
[ECO "C42"]
[EventDate "1978.09.16"]
[PlyCount "86"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.c4 Nc6 8.cxd5 
Qxd5 9.Nc3 Nxc3 10.bxc3 Bg4 11.Be2 O-O 12.h3 Bh5 13.O-O a6 14.Bf4 Rac8 15.
c4 Qe4 16.Be3 Bf6 17.Nd2 Bxe2 18.Nxe4 Bxd1 19.Rfxd1 Be7 20.d5 Ne5 21.Rac1 
Nd7 22.c5 f5 23.d6 cxd6 24.cxd6 Rxc1 25.Rxc1 fxe4 26.dxe7 Re8 27.Rc7 Rxe7 
28.Rxb7 Rf7 29.Ra7 Nf6 30.Rxa6 Rd7 31.Ra8+ Kf7 32.Ra7 Rxa7 33.Bxa7 Ke6 34.
Bd4 Ne8 35.a4 Kd5 36.Bc3 Kc4 37.Bd2 Nc7 38.g4 Kd3 39.Bf4 Nd5 40.Be5 g6 41.
a5 Nb4 42.Bd6 Na6 43.Kg2 e3 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Trois, Francisco"]
[Result "0-1"]
[WhiteElo "2370"]
[BlackElo "2385"]
[ECO "B06"]
[EventDate "1978.09.16"]
[PlyCount "102"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 c6 5.Qd2 Nd7 6.Be2 b5 7.f4 Nb6 8.b3 Nf6 9.
Bf3 O-O 10.Nge2 Qc7 11.Ng3 Bb7 12.O-O b4 13.Nce2 c5 14.Rac1 Nfd7 15.c3 
bxc3 16.Rxc3 Rac8 17.Rc2 Qb8 18.dxc5 Nxc5 19.Rfc1 Nbd7 20.Nc3 Nb6 21.Nd5 
Nxd5 22.exd5 Ba6 23.Ne2 Bxe2 24.Qxe2 a5 25.Rc4 Rce8 26.Qd2 e6 27.dxe6 Rxe6
28.Bd5 Re7 29.Bf2 Rfe8 30.Bf3 Bf6 31.Rd1 Ne4 32.Bxe4 Rxe4 33.Rxe4 Rxe4 34.
Qxa5 Rxf4 35.Qd5 Be5 36.a4 Rb4 37.Rd3 h5 38.g3 Qc8 39.Kg2 h4 40.Rd1 h3+ 
41.Kg1 Qc2 42.a5 Rxb3 43.Rf1 Rd3 44.Qa8+ Kg7 45.Qb7 Rd1 46.Qf3 Rxf1+ 47.
Kxf1 Qb1+ 48.Be1 Qb5+ 49.Qe2 Qd5 50.Qf2 Bd4 51.Qd2 Qh1+ 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Emma, Jaime"]
[Black "Segal, Alexandru Sorin"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2395"]
[ECO "C10"]
[EventDate "1978.09.16"]
[PlyCount "38"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bd7 5.Nf3 Bc6 6.Bd3 Nd7 7.O-O Be7 8.c4 
Ngf6 9.Nc3 Bxf3 10.Qxf3 c6 11.Re1 O-O 12.Bf4 Re8 13.Rad1 Nf8 14.a3 a6 15.
h3 Rc8 16.Bb1 Bd6 17.Bg5 N8d7 18.Ne4 Be7 19.Ng3 b5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Frias Pablaza, Victor"]
[Black "Dienavorian Lacherian, Manuel"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2360"]
[ECO "C66"]
[EventDate "1978.09.16"]
[PlyCount "87"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 d6 5.d4 Bd7 6.O-O exd4 7.Nxd4 Be7 8.Re1 
O-O 9.Nxc6 Bxc6 10.Bxc6 bxc6 11.Ne2 c5 12.Nf4 Re8 13.Bd2 Bf8 14.Qf3 Nd7 
15.Bc3 Ne5 16.Qg3 Ng6 17.Nd3 Qh4 18.Qf3 f6 19.Qf5 Qg5 20.Qxg5 fxg5 21.Rad1
Re6 22.f3 Rae8 23.a3 Nf4 24.b4 Nxd3 25.Rxd3 cxb4 26.axb4 c5 27.Ra1 R6e7 
28.bxc5 dxc5 29.h3 Rb7 30.Rd5 h6 31.Kf2 Re6 32.Ke2 Kf7 33.Kd3 Reb6 34.Rd8 
Rd6+ 35.Rxd6 Bxd6 36.Kc4 Be7 37.Kd5 Bf8 38.Ra6 Rd7+ 39.Kc4 Re7 40.e5 Rb7 
41.e6+ Ke8 42.Kd5 Kd8 43.Be5 Kc8 44.c4 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Gonzalez Bernal, Manuel"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[BlackElo "2375"]
[ECO "C84"]
[EventDate "1978.09.16"]
[PlyCount "89"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d4 exd4 7.e5 Ne4 8.Nxd4 
O-O 9.Nf5 d5 10.Nxe7+ Nxe7 11.c3 Nc5 12.Bc2 Bf5 13.Bg5 Bxc2 14.Qxc2 Ne6 
15.Bh4 Nf4 16.Nd2 Qd7 17.Bxe7 Qxe7 18.Qf5 Ng6 19.Nf3 Rad8 20.Rfe1 Rfe8 21.
g3 c6 22.Rad1 Qd7 23.Qh5 Nf8 24.Nd4 g6 25.Qh6 c5 26.Nf3 Ne6 27.h3 Qe7 28.
Nh2 Qg5 29.Qxg5 Nxg5 30.h4 Ne4 31.c4 f5 32.Nf1 dxc4 33.f3 Rxd1 34.Rxd1 c3 
35.fxe4 cxb2 36.Rb1 Rxe5 37.Rxb2 fxe4 38.Ne3 b5 39.a4 c4 40.axb5 axb5 41.
Ng4 c3 42.Rc2 Rc5 43.Nf6+ Kg7 44.Nxe4 Rc4 45.Nd6 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "11"]
[White "Hase, Juan Carlos"]
[Black "Braga, Cicero"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[ECO "B27"]
[EventDate "1978.09.16"]
[PlyCount "66"]

1.e4 c5 2.Nf3 g6 3.c3 Bg7 4.d4 cxd4 5.cxd4 Nf6 6.Nc3 d5 7.e5 Ne4 8.Bd3 Bf5
9.O-O O-O 10.Bxe4 Bxe4 11.Ng5 Nc6 12.Ngxe4 dxe4 13.Be3 f5 14.exf6 exf6 15.
Qb3+ Rf7 16.Nxe4 Nxd4 17.Qc4 Nf5 18.Rfd1 Qc7 19.Bc5 b6 20.Qd5 Qb7 21.Bb4 
Qxd5 22.Rxd5 Ne7 23.Rd6 h6 24.Bc3 Raf8 25.a4 f5 26.Bxg7 Kxg7 27.Nc3 Nc8 
28.Rd2 Rc7 29.Rad1 Rff7 30.g3 Rc4 31.Rd8 Ne7 32.R8d7 Nc6 33.R7d6 Ne5 
1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Braga, Cicero"]
[Black "Campora Sivori, Daniel Hugo"]
[Result "1/2-1/2"]
[BlackElo "2370"]
[ECO "C40"]
[EventDate "1978.09.16"]
[PlyCount "16"]

1.e4 e5 2.Nf3 d5 3.Nxe5 dxe4 4.d4 exd3 5.Bxd3 Bd6 6.Nc4 Be7 7.O-O Nf6 8.
Nc3 O-O 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Estrada Degrandi, Walter"]
[Black "Emma, Jaime"]
[Result "0-1"]
[WhiteElo "2350"]
[BlackElo "2390"]
[ECO "B73"]
[EventDate "1978.09.16"]
[PlyCount "60"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 O-O 8.O-O 
Nc6 9.f4 Qb6 10.Qd3 Ng4 11.Nd5 Bxd4 12.Nxb6 Bxe3+ 13.Kh1 Bxb6 14.Bxg4 Bxg4
15.h3 Bd7 16.f5 Ne5 17.Qd2 gxf5 18.exf5 f6 19.Rf4 Rf7 20.b3 Bc6 21.Re1 Rg7
22.Re2 Kh8 23.Kh2 Rag8 24.g4 h5 25.Kg3 hxg4 26.h4 Rh7 27.Rxe5 dxe5 28.Rxg4
Rxg4+ 29.Kxg4 Rg7+ 30.Kh3 e4 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Segal, Alexandru Sorin"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2410"]
[ECO "A06"]
[EventDate "1978.09.16"]
[PlyCount "17"]

1.Nf3 d5 2.b3 Bg4 3.e3 Nd7 4.Bb2 Ngf6 5.Be2 c6 6.h3 Bxf3 7.Bxf3 e6 8.d3 
Bd6 9.Nd2 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Silva Sanchez, Carlos"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2400"]
[ECO "D58"]
[EventDate "1978.09.16"]
[PlyCount "21"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Nf3 b6 8.Rc1 Bb7 
9.Bxf6 Bxf6 10.cxd5 exd5 11.b4 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Trois, Francisco"]
[Black "Gonzalez Bernal, Manuel"]
[Result "1-0"]
[WhiteElo "2385"]
[ECO "A34"]
[EventDate "1978.09.16"]
[PlyCount "71"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 b6 4.e4 Bb7 5.d3 c5 6.g3 d6 7.Bg2 Be7 8.O-O Nbd7 
9.b3 O-O 10.Bb2 a6 11.Re1 Ra7 12.d4 cxd4 13.Nxd4 Qa8 14.Qe2 Rc8 15.h3 Bf8 
16.Kh2 Nc5 17.Rad1 Qb8 18.f4 Ba8 19.Rd2 Rac7 20.Bf3 Bb7 21.Qg2 Qa8 22.Ree2
Kh8 23.Nc2 Ng8 24.Nd4 Ne7 25.h4 Nc6 26.Nc2 Na7 27.Nd4 Kg8 28.h5 h6 29.Rd1 
Nc6 30.Nc2 Qb8 31.Red2 Ba8 32.b4 Nd7 33.Rd3 b5 34.c5 Nxc5 35.bxc5 dxc5 36.
a4 {time} 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "12"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Frias Pablaza, Victor"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2400"]
[ECO "D34"]
[EventDate "1978.09.16"]
[PlyCount "61"]

1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 c5 5.O-O Be7 6.cxd5 exd5 7.d4 O-O 8.dxc5 
Bxc5 9.Nc3 Nc6 10.Bg5 d4 11.Bxf6 Qxf6 12.Ne4 Qe7 13.Nxc5 Qxc5 14.Rc1 Qb6 
15.Qc2 g6 16.Rfd1 Bf5 17.Qd2 Rad8 18.Qh6 Rd7 19.Ng5 Re8 20.Qxh7+ Kf8 21.
Bf3 Nd8 22.Qh8+ Ke7 23.Qe5+ Be6 24.Nh7 Rd6 25.Nf6 Kf8 26.Nxe8 Kxe8 27.e3 
d3 28.Rc3 d2 29.Rc2 Kf8 30.Rcxd2 Rxd2 31.Rxd2 1-0

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Campora Sivori, Daniel Hugo"]
[Black "Segal, Alexandru Sorin"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2395"]
[ECO "C01"]
[EventDate "1978.09.16"]
[PlyCount "24"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Bd3 Nc6 5.Nf3 Bd6 6.O-O Nge7 7.h3 O-O 8.c3 
Bf5 9.Re1 Qd7 10.Qc2 Bxd3 11.Qxd3 a6 12.Nbd2 Qf5 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Dienavorian Lacherian, Manuel"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2375"]
[ECO "B40"]
[EventDate "1978.09.16"]
[PlyCount "72"]

1.e4 c5 2.Nf3 e6 3.g3 Nc6 4.Bg2 a6 5.O-O d6 6.Nc3 Nge7 7.d3 g6 8.Be3 Bg7 
9.h3 O-O 10.Qd2 Re8 11.Kh2 Nd4 12.Bxd4 cxd4 13.Ne2 Nc6 14.c3 dxc3 15.Nxc3 
Bd7 16.Rac1 Rc8 17.Rfd1 Nd4 18.Nxd4 Bxd4 19.f4 Qb6 20.Qe2 Rc7 21.Rc2 Rec8 
22.Rdc1 Qa5 23.h4 Kg7 24.Bf3 h5 25.Bg2 b5 26.a3 b4 27.axb4 Qxb4 28.Bf1 a5 
29.Ra1 a4 30.Rac1 Qb6 31.Nd1 Rxc2 32.Rxc2 Qb3 33.Rxc8 Bxc8 34.Bg2 Bxb2 35.
Qxb2+ Qxb2 36.Nxb2 a3 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Emma, Jaime"]
[Black "Silva Sanchez, Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2405"]
[ECO "C10"]
[EventDate "1978.09.16"]
[PlyCount "30"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bd3 Be7 8.
O-O O-O 9.Qe2 b6 10.Bg5 Bb7 11.Rad1 Bxf3 12.Qxf3 Qd5 13.Qxd5 Nxd5 14.Bxe7 
Nxe7 15.Rfe1 Rfd8 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Frias Pablaza, Victor"]
[Black "Trois, Francisco"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2385"]
[ECO "C91"]
[EventDate "1978.09.16"]
[PlyCount "74"]

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 exd4 11.cxd4 Na5 12.Bc2 c5 13.Nbd2 cxd4 14.Bxd4 Nc6 15.Be3
d5 16.exd5 Nxd5 17.Bxh7+ Kxh7 18.Qc2+ Kg8 19.Qxc6 Bb4 20.Bg5 f6 21.Re4 Rc8
22.Qxa6 Bf5 23.Bh4 Qd7 24.Rxb4 Nxb4 25.Qb6 Nc2 26.Rf1 Rb8 27.Qa5 Ra8 28.
Qb6 Rfb8 29.Qc5 Ra6 30.Rc1 Rc6 31.Rxc2 Rxc5 32.Rxc5 Rc8 33.Rxc8+ Qxc8 34.
Nb3 Be6 35.Nfd4 Bxb3 36.Nxb3 Qg4 37.g3 g5 0-1

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Gonzalez Bernal, Manuel"]
[Black "Braga, Cicero"]
[Result "1/2-1/2"]
[ECO "B73"]
[EventDate "1978.09.16"]
[PlyCount "21"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Nb3 
Be6 9.Bg5 Nbd7 10.Kh1 Nb6 11.Nd4 1/2-1/2

[Event "South American zonal"]
[Site "Tramandai BRA"]
[Date "1978.09.??"]
[Round "13"]
[White "Hase, Juan Carlos"]
[Black "Estrada Degrandi, Walter"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2350"]
[ECO "C26"]
[EventDate "1978.09.16"]
[PlyCount "104"]

1.e4 e5 2.Nc3 Nf6 3.g3 c6 4.d4 d6 5.a4 Be7 6.Bg2 O-O 7.Nf3 Bg4 8.dxe5 Bxf3
9.Qxf3 dxe5 10.O-O Nbd7 11.Nd1 Nc5 12.Qe2 Ne6 13.Ne3 Nd4 14.Qd1 g6 15.Nc4 
Nd7 16.Bh6 Re8 17.c3 Ne6 18.Nd6 Bxd6 19.Qxd6 Qe7 20.Qxe7 Rxe7 21.Rfd1 Nf6 
22.f3 Rd7 23.Be3 Kf8 24.a5 Ke7 25.a6 b6 26.b4 Rad8 27.Rxd7+ Rxd7 28.Bf1 
Ne8 29.Kf2 f6 30.Bc4 N8c7 31.Ke1 Nb5 32.Bd2 Nec7 33.Ke2 Rd8 34.f4 Nd6 35.
Bd3 Ne6 36.Rf1 g5 37.fxe5 fxe5 38.Rf5 Nf7 39.Be3 h6 40.Rf1 Nd6 41.Rh1 Kf6 
42.h4 Kg7 43.hxg5 hxg5 44.Bc2 Nb5 45.Kf3 Nxc3 46.Kg4 Nb5 47.Bb3 Rd3 48.
Bxe6 Rxe3 49.Bf5 Nd6 50.Rh7+ Kf6 51.Rh6+ Ke7 52.Rh7+ Kf6 1/2-1/2

