[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Miscevic, Miodrag"]
[Black "Masic, Ljubomir"]
[Result "0-1"]
[BlackElo "2360"]
[ECO "B99"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qf3 
Qc7 9.O-O-O Be7 10.Bd3 b5 11.Rhe1 Bb7 12.Nd5 Nxd5 13.exd5 Bxg5 14.Nxe6 
fxe6 15.Qh5+ Kf8 16.fxg5 Ne5 17.Bxh7 Qc4 18.b3 Qf4+ 19.Kb1 Ke7 20.Rf1 Qe4 
21.g6 Bxd5 22.Qg5+ Kd7 23.Rfe1 Qg4 24.Qd2 Rhf8 25.Re2 Rac8 26.h3 Qg3 27.
Kb2 Rc7 28.Re3 Qf2 29.Re2 Qf4 30.Re3 b4 31.g3 Qf2 32.Re2 Qc5 33.Rc1 a5 34.
h4 Qc3+ 35.Qxc3 Rxc3 36.h5 Bf3 37.Rxe5 dxe5 38.h6 Rcc8 39.hxg7 Rg8 40.Bxg8
Rxg8 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Ivkovic, Dusan"]
[Black "Hecht, Hans-Joachim"]
[Result "1-0"]
[BlackElo "2505"]
[ECO "C06"]
[EventDate "1973.09.16"]
[PlyCount "113"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.Bd3 c5 5.e5 Nfd7 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 
Nb6 9.O-O Bd7 10.a3 a5 11.b3 a4 12.b4 Be7 13.f4 f5 14.exf6 Bxf6 15.Nf3 O-O
16.Qc2 g6 17.Bxg6 hxg6 18.Qxg6+ Bg7 19.Ng5 Rf6 20.Qh7+ Kf8 21.f5 exf5 22.
Nf4 Qe8 23.Bd2 Rh6 24.Nfe6+ Bxe6 25.Nxe6+ Qxe6 26.Bxh6 Bxh6 27.Rxf5+ Ke8 
28.Raf1 Be3+ 29.Kh1 Qh6 30.Qf7+ Kd8 31.Qxb7 Nd7 32.Qxa8+ Kc7 33.b5 Nxd4 
34.Qa7+ Kd6 35.Qa6+ Kc5 36.Qxh6 Bxh6 37.Rf7 Ne5 38.Rh7 Bd2 39.Rh5 Nc4 40.
g4 Nxb5 41.g5 Bc3 42.g6 Nbxa3 43.Rd1 Kb4 44.Rdxd5 Nb6 45.Rdg5 Nbc4 46.g7 
Bxg7 47.Rxg7 Nb5 48.Rg1 a3 49.Rb1+ Nb2 50.Rxb5+ Kxb5 51.h4 Kc4 52.h5 Nd3 
53.h6 Ne5 54.h7 Nf7 55.Kg2 Kd5 56.Ra1 Ke6 57.Rxa3 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Quinteros, Miguel Angel"]
[Black "Tringov, Georgi"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2450"]
[ECO "B85"]
[EventDate "1973.09.16"]
[PlyCount "70"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e6 7.O-O Be7 8.Be3 
O-O 9.f4 a6 10.Bf3 Bd7 11.Qe2 Qc7 12.g4 Nxd4 13.Bxd4 Bc6 14.a4 e5 15.Be3 
exf4 16.Bxf4 Nd7 17.Qd2 Ne5 18.Be2 b6 19.Rf2 Qb7 20.Nd5 b5 21.axb5 axb5 
22.Raf1 Nc4 23.Nxe7+ Qxe7 24.Qd4 Ne5 25.Bd2 Rad8 26.Bf4 Rd7 27.Rg2 Re8 28.
g5 Qe6 29.Qc3 h6 30.Rff2 hxg5 31.Rxg5 Qh6 32.Qd2 Qh4 33.Qd4 Ng6 34.Rg4 Qe7
35.Bd3 Qe6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Buljovcic, Ivan"]
[Black "Forintos, Gyozo"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2460"]
[ECO "B06"]
[EventDate "1973.09.16"]
[PlyCount "27"]
[Source "Perpetual Check"]

1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Qa5 5.Ne2 Na6 6.Be3 Nxc5 7.Qd2 d6 8.f3 
Bd7 9.a3 Na4 10.Nxa4 Qxd2+ 11.Bxd2 Bxa4 12.O-O-O Rc8 13.Nc3 Bd7 14.Nd5 
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.19"]
[Round "1"]
[White "Uhlmann, Wolfgang"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2455"]
[ECO "D38"]
[EventDate "1973.09.16"]
[PlyCount "38"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.cxd5 exd5 6.Bg5 h6 7.Bh4 c5 8.Rc1 c4
9.Qa4+ Nc6 10.Ne5 Qa5 11.Qxa5 Bxa5 12.Bxf6 gxf6 13.Nf3 Be6 14.e3 b5 15.Nd2
Rb8 16.Be2 Ke7 17.f4 f5 18.Kf2 Kd6 19.Nf3 f6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Parma, Bruno"]
[Black "Krnic, Zdenko"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2400"]
[ECO "B47"]
[EventDate "1973.09.16"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.O-O b5 8.Nxc6 
Qxc6 9.Bf3 Bb7 10.Bf4 Ne7 11.Bd6 Ng6 12.e5 Qb6 13.Bxf8 Rxf8 14.Bxb7 Qxb7 
15.Qd4 Qc7 16.Rfe1 Qc4 17.Qd6 Qc6 18.a4 Qxd6 19.exd6 b4 20.Nd5 Kd8 21.Nb6 
Rb8 22.a5 Nf4 23.Red1 e5 24.Re1 Re8 25.g3 Ng6 26.Ra4 e4 27.Rxb4 f5 28.f4 
Re6 29.Rd4 Nh8 30.c4 Nf7 31.c5 Rh6 32.Rd5 Rf6 33.Kf2 Ke8 34.Ke3 g6 35.b4 
Nd8 36.Re5+ Re6 37.Rxe6+ dxe6 38.c6 Nxc6 39.Rc1 Nd8 40.Rc7 Rb7 41.b5 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.16"]
[Round "1"]
[White "Radulov, Ivan"]
[Black "Kirov, Nino"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2420"]
[ECO "D13"]
[EventDate "1973.09.16"]
[PlyCount "36"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.cxd5 cxd5 5.Nc3 Nc6 6.e3 Bf5 7.Bd3 Bxd3 8.Qxd3
e6 9.Ne5 Nxe5 10.dxe5 Nd7 11.e4 Nxe5 12.Qb5+ Qd7 13.Qxd7+ Kxd7 14.exd5 
Nd3+ 15.Ke2 Nxc1+ 16.Raxc1 e5 17.g4 Rc8 18.Ne4 Bd6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Velimirovic, Dragoljub"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2560"]
[ECO "C18"]
[EventDate "1973.09.16"]
[PlyCount "55"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Qg4 Qc7 8.Bd3 h5
9.Qxg7 Rg8 10.Qh6 cxd4 11.Ne2 Nbc6 12.cxd4 Bd7 13.Be3 O-O-O 14.Qxh5 Nf5 
15.Bxf5 exf5 16.Nf4 Nxe5 17.O-O Rh8 18.Qe2 Ng6 19.g3 Nxf4 20.Bxf4 Qc6 21.
Qe5 Be6 22.Rab1 Kd7 23.Rfe1 b6 24.a4 Rhf8 25.a5 Rb8 26.c4 Rbc8 27.axb6 
axb6 28.Ra1 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Zuckerman, Bernard"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2500"]
[ECO "B08"]
[EventDate "1973.09.16"]
[PlyCount "23"]
[Source "Perpetual Check"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Nc6 7.d5 Nb8 8.h3 c6 
9.a4 Qc7 10.Bf4 Nbd7 11.Re1 a5 12.Nd2 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Hecht, Hans-Joachim"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2505"]
[ECO "A15"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 O-O 5.g3 d6 6.Bg2 e5 7.O-O c6 8.d3 Be6 9.
Nbd2 Nbd7 10.Ng5 Qe7 11.Nxe6 Qxe6 12.Qb3 Rab8 13.Rae1 Kh8 14.e3 d5 15.f4 
exf4 16.exf4 Qf5 17.Nf3 dxc4 18.dxc4 Nb6 19.a4 Rbd8 20.Nd4 Qd7 21.a5 Nc8 
22.Rd1 Qc7 23.a6 bxa6 24.Nxc6 Rxd1 25.Rxd1 Ne7 26.Be5 Qb7 27.Qc3 Neg8 28.
Rd6 Nh5 29.Bxg7+ Nxg7 30.Ne5 Qb8 31.c5 Nf6 32.Rxf6 Qe8 33.Rd6 f6 34.Nd7 
Rf7 35.Nxf6 Qe7 36.Qe5 Qf8 37.Qd5 Rxf6 38.Rxf6 Qxf6 39.Qa8+ Ne8 40.Qxe8+ 
Kg7 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Krnic, Zdenko"]
[Black "Ivkovic, Dusan"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[ECO "A01"]
[EventDate "1973.09.16"]
[PlyCount "76"]
[Source "Perpetual Check"]

1.b3 d5 2.Bb2 c5 3.e3 Nc6 4.Bb5 Bd7 5.Nf3 a6 6.Bxc6 Bxc6 7.Ne5 Rc8 8.d3 
Nf6 9.Nd2 g6 10.O-O Bg7 11.a4 O-O 12.Nxc6 Rxc6 13.a5 Ne8 14.Bxg7 Nxg7 15.
Ra4 Nf5 16.Qa1 Qc7 17.Nf3 f6 18.Nh4 Nxh4 19.Rxh4 f5 20.c4 e6 21.Rc1 Qg7 
22.Qxg7+ Kxg7 23.Kf1 g5 24.cxd5 exd5 25.Ra4 Rfc8 26.Ke2 Kf6 27.Kd2 h6 28.
g4 fxg4 29.Rxg4 b5 30.h4 c4 31.hxg5+ hxg5 32.dxc4 dxc4 33.bxc4 bxc4 34.Rd4
c3+ 35.Kc2 Rb8 36.Rb1 Rxb1 37.Kxb1 c2+ 38.Kc1 Ke5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Forintos, Gyozo"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2520"]
[ECO "E91"]
[EventDate "1973.09.16"]
[PlyCount "79"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Be2 e6 7.Nf3 O-O 8.O-O Re8 9.
h3 Na6 10.Bf4 exd5 11.exd5 Ne4 12.Nxe4 Rxe4 13.Bg5 Qc7 14.Qd2 Bd7 15.Bd3 
Ree8 16.a3 b5 17.cxb5 c4 18.Bxc4 Qxc4 19.bxa6 Re2 20.Qf4 Qxa6 21.Bf6 Rae8 
22.Bxg7 Kxg7 23.Qd4+ Kg8 24.Rac1 Qb6 25.Qxb6 axb6 26.b3 Rb2 27.Rc3 Rc8 28.
Rfc1 Rc5 29.Rxc5 bxc5 30.b4 cxb4 31.axb4 Rxb4 32.Rc7 Be8 33.Rc1 Rb5 34.Rd1
f6 35.Nh2 f5 36.Nf1 Bf7 37.Ne3 Rb4 38.g3 Kg7 39.Kg2 Kf6 40.f4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Tringov, Georgi"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2530"]
[ECO "B15"]
[EventDate "1973.09.16"]
[PlyCount "26"]
[Source "Perpetual Check"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Qe7+ 7.Qe2 Be6 8.
Bxe6 Qxe6 9.Bf4 Na6 10.O-O-O O-O-O 11.Qxe6+ fxe6 12.Nf3 Bd6 13.Bxd6 Rxd6 
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.17"]
[Round "2"]
[White "Masic, Ljubomir"]
[Black "Buljovcic, Ivan"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2435"]
[ECO "A09"]
[EventDate "1973.09.16"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.Nf3 d5 2.c4 d4 3.g3 c5 4.Bg2 Nc6 5.O-O e5 6.d3 Nf6 7.e3 Be7 8.exd4 exd4 
9.a3 O-O 10.Bg5 Bf5 11.Nh4 Bg4 12.f3 Bd7 13.Bh1 h6 14.Bc1 Qc7 15.Nd2 Rae8 
16.Ng2 Ne5 17.Qc2 Bc6 18.f4 Neg4 19.Nf3 Bd6 20.Bd2 b6 21.Rae1 Qb7 22.Ngh4 
g6 23.b4 a6 24.Qc1 Ne3 25.b5 axb5 26.cxb5 Bd5 27.Bxe3 dxe3 28.Rxe3 Rxe3 
29.Qxe3 c4 30.Bg2 Ng4 31.Qd2 cxd3 32.h3 Bc5+ 33.Kh1 Ne3 34.Re1 Nxg2 35.
Kxg2 Be4 36.g4 Ra8 37.Kg3 Rxa3 38.Ne5 Qd5 39.Nd7 Qxd7 40.Rxe4 Ra8 41.Nf3 
0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Parma, Bruno"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2510"]
[ECO "B38"]
[EventDate "1973.09.16"]
[PlyCount "42"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 d6 8.Be2 
Nd7 9.O-O O-O 10.Qd2 Nc5 11.Rad1 Bd7 12.f3 a5 13.b3 Nxd4 14.Bxd4 Bc6 15.
Bxg7 Kxg7 16.Qe3 Qb6 17.e5 dxe5 18.Qxe5+ Kg8 19.Kh1 e6 20.Nb5 Bxb5 21.cxb5
Rfd8 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Miscevic, Miodrag"]
[Black "Krnic, Zdenko"]
[Result "0-1"]
[BlackElo "2400"]
[ECO "B46"]
[EventDate "1973.09.16"]
[PlyCount "86"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.Be2 Nge7 7.O-O Nxd4 8.
Qxd4 Nc6 9.Qd3 Be7 10.a3 d6 11.Qg3 O-O 12.f4 b5 13.Bd3 g6 14.f5 Ne5 15.Bh6
Re8 16.Rf4 d5 17.Raf1 d4 18.f6 dxc3 19.Bg7 Bf8 20.Bxf8 Qd4+ 21.Kh1 Kxf8 
22.bxc3 Qc5 23.Rh4 Rd8 24.Rxh7 Ke8 25.Rd1 Rd6 26.Qf4 Kd7 27.h4 Bb7 28.h5 
gxh5 29.Qh4 Kc6 30.Rxh5 Qxc3 31.Qg5 Nxd3 32.cxd3 Qd4 33.a4 e5 34.a5 Bc8 
35.Rh8 Kb7 36.Rc1 Be6 37.Rxa8 Kxa8 38.Qg8+ Rd8 39.Qh7 Kb7 40.Rd1 b4 41.Qh4
b3 42.g4 b2 43.Qe1 Rc8 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Radulov, Ivan"]
[Black "Forintos, Gyozo"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2460"]
[ECO "B36"]
[EventDate "1973.09.16"]
[PlyCount "104"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be2 
Bg7 9.Be3 Be6 10.O-O O-O 11.Qd2 Qa5 12.f3 Rfc8 13.b3 Ng4 14.Bd4 Bxd4+ 15.
Qxd4 Qe5 16.Qxe5 Nxe5 17.f4 Nc6 18.f5 Bd7 19.f6 Nd4 20.fxe7 Nxe2+ 21.Nxe2 
Re8 22.Nc3 Bc6 23.Rad1 Rxe7 24.Rxd6 Kg7 25.Rdf6 Rf8 26.R6f4 g5 27.Rf5 h6 
28.h4 Kg6 29.Rf6+ Kg7 30.hxg5 hxg5 31.R6f5 Kg6 32.e5 Rd8 33.Rf6+ Kh5 34.
Rd6 Rde8 35.Nd5 Bxd5 36.Rxd5 b6 37.Rf5 Kg4 38.e6 fxe6 39.Rxg5+ Kf4 40.Rde5
Rd8 41.Rgf5+ Kg4 42.Rf1 Rd2 43.Rfe1 Rf7 44.R5e2 Rxe2 45.Rxe2 Rd7 46.Kf2 
Kf5 47.b4 Rc7 48.Rc2 Ke4 49.Rc1 Kd3 50.Rd1+ Kc3 51.c5 bxc5 52.bxc5 Rxc5 
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Buljovcic, Ivan"]
[Black "Hecht, Hans-Joachim"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2505"]
[ECO "C09"]
[EventDate "1973.09.16"]
[PlyCount "98"]
[Source "Perpetual Check"]

1.e4 c5 2.c3 e6 3.d4 d5 4.exd5 exd5 5.Nf3 Nc6 6.Bb5 Bd6 7.O-O Ne7 8.Nbd2 
O-O 9.dxc5 Bxc5 10.Nb3 Bd6 11.Nbd4 Bg4 12.Be2 Re8 13.Be3 a6 14.Qd3 Bh5 15.
Rad1 Qc7 16.Rfe1 Bg6 17.Qd2 Na5 18.Bg5 h6 19.Bh4 Bf4 20.Bg3 Bxg3 21.hxg3 
Rad8 22.Qf4 Qb6 23.b3 Nac6 24.Bd3 Bxd3 25.Rxd3 Ng6 26.Qd2 Nce5 27.Nxe5 
Rxe5 28.Nf3 Rxe1+ 29.Nxe1 Ne7 30.Nf3 Rc8 31.Nd4 Qc7 32.Qe2 Rd8 33.Qh5 Qd6 
34.Nf5 Nxf5 35.Qxf5 Qe6 36.Qf3 b5 37.Re3 Qd6 38.Rd3 Qe5 39.Re3 Qd6 40.Rd3 
Qe5 41.Kf1 g6 42.Qd1 Kg7 43.g4 Rc8 44.Qd2 Qe4 45.Rd4 Qb1+ 46.Ke2 Re8+ 47.
Kf3 Re5 48.Kg3 g5 49.Rxd5 Rxd5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Kirov, Nino"]
[Black "Tringov, Georgi"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2450"]
[ECO "C85"]
[EventDate "1973.09.16"]
[PlyCount "32"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6 7.d3 Nd7 8.Nbd2
O-O 9.Nc4 f6 10.Nh4 Nc5 11.Nf5 Bxf5 12.exf5 Qd7 13.Qf3 b6 14.b3 Nb7 15.Bb2
Nd6 16.Nxd6 Bxd6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Quinteros, Miguel Angel"]
[Black "Masic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2360"]
[ECO "B59"]
[EventDate "1973.09.16"]
[PlyCount "68"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.Bg5 
O-O 9.Bxf6 Bxf6 10.Nd5 Bg5 11.Bc4 g6 12.Qe2 h5 13.O-O Kh7 14.Rad1 Rb8 15.
c3 Bh6 16.Ne3 Qe7 17.Bd5 Bd7 18.a4 Nd8 19.a5 Ne6 20.g3 Ng5 21.h4 Nh3+ 22.
Kg2 Nf4+ 23.gxf4 exf4 24.Nc4 Qxh4 25.Rh1 Qg5+ 26.Kf1 f3 27.Qxf3 Bg4 28.Qd3
Bxd1 29.Qxd1 f5 30.Nd4 Rbe8 31.exf5 Rf6 32.Rg1 Qh4 33.Rxg6 Rxg6 34.fxg6+ 
Kh8 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.18"]
[Round "3"]
[White "Ivkovic, Dusan"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[BlackElo "2455"]
[ECO "B50"]
[EventDate "1973.09.16"]
[PlyCount "86"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Bc4 Nf6 4.Qe2 Nc6 5.c3 Bg4 6.d3 e6 7.Bg5 Be7 8.Nbd2 O-O
9.Bb3 d5 10.h3 Bh5 11.g4 Bg6 12.O-O-O b5 13.h4 h5 14.gxh5 Bxh5 15.Rhg1 Kh8
16.e5 Nh7 17.Qe3 Nxg5 18.Nxg5 Bxd1 19.Bxd1 Kg8 20.Ndf3 Qd7 21.d4 f6 22.
exf6 Rxf6 23.Nh2 cxd4 24.cxd4 Nxd4 25.Ng4 Qc7+ 26.Kb1 Qf4 27.Nxf6+ Qxf6 
28.Qd3 Qf5 29.Qxf5 exf5 30.Nf3 Nxf3 31.Bxf3 Rd8 32.Be2 Bxh4 33.Bxb5 Kf7 
34.f3 Kf6 35.Rg2 g5 36.Re2 Bg3 37.Kc2 Rb8 38.a4 Be5 39.Kd3 Rb6 40.Rc2 a6 
41.Rc6+ Rxc6 42.Bxc6 Ke6 43.b4 Bg3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Uhlmann, Wolfgang"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2500"]
[ECO "A33"]
[EventDate "1973.09.16"]
[PlyCount "112"]
[Source "Perpetual Check"]

1.c4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 e6 6.g3 Bc5 7.Nb3 Bb4 8.Bg2 
d5 9.cxd5 exd5 10.O-O Be6 11.Bg5 O-O 12.Nxd5 Bxd5 13.Bxf6 Qxf6 14.Qxd5 
Qxb2 15.Qb5 Rab8 16.e3 Qa3 17.Rfc1 Be7 18.Nc5 Rbc8 19.Qxb7 Bxc5 20.Bxc6 
Bb6 21.Qd7 Rcd8 22.Qf5 Rd2 23.Rc2 g6 24.Qe4 Rxc2 25.Qxc2 Rd8 26.Bb5 Kg7 
27.Bc4 Qe7 28.Bb3 Rd7 29.Rd1 Rxd1+ 30.Qxd1 Qd8 31.Qf3 Qf6 32.Qb7 Qf5 33.
Kg2 h5 34.h3 Kf8 35.Bc4 Kg7 36.Qe7 Bc5 37.Qe8 Bb6 38.Bb3 Qf6 39.f4 Qb2+ 
40.Kf3 Qf6 41.h4 Bc5 42.Bxf7 Qxf7 43.Qe5+ Kh7 44.Qxc5 Qxa2 45.Qe7+ Kg8 46.
Qg5 Kh7 47.Qe7+ Kg8 48.Qd8+ Kg7 49.f5 gxf5 50.Qg5+ Kf8 51.Qxf5+ Qf7 52.g4 
a5 53.Ke2 hxg4 54.Qc8+ Ke7 55.Qxg4 Qa2+ 56.Kf3 a4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Velimirovic, Dragoljub"]
[Black "Ivkovic, Dusan"]
[Result "1-0"]
[WhiteElo "2510"]
[ECO "B00"]
[EventDate "1973.09.16"]
[PlyCount "73"]
[Source "Perpetual Check"]

1.e4 Nc6 2.Bb5 a6 3.Bxc6 dxc6 4.d4 c5 5.d5 Nf6 6.Qe2 b5 7.c4 bxc4 8.Nc3 c6
9.Bg5 h6 10.Bxf6 exf6 11.O-O-O Qc7 12.e5 fxe5 13.f4 Be7 14.Nf3 O-O 15.fxe5
cxd5 16.Nxd5 Qb7 17.Qxc4 Be6 18.Qb3 Bxd5 19.Rxd5 Qc6 20.Rhd1 Rab8 21.Qc2 
Rb6 22.Rd7 Qe6 23.Rc7 Rb4 24.Rd3 Rfb8 25.b3 c4 26.Rxc4 Rxc4 27.bxc4 Rc8 
28.Rd4 Bc5 29.Rd5 g6 30.Kd1 Qg4 31.h3 Qg3 32.e6 fxe6 33.Ng5 hxg5 34.Qxg6+ 
Kh8 35.Rd7 Qd6+ 36.Rxd6 Bxd6 37.Qh6+ 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Hecht, Hans-Joachim"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2520"]
[ECO "B25"]
[EventDate "1973.09.16"]
[PlyCount "123"]
[Source "Perpetual Check"]

1.e4 c5 2.Nc3 d6 3.g3 Nc6 4.Bg2 g6 5.d3 Bg7 6.Nf3 Bg4 7.h3 Bxf3 8.Bxf3 e6 
9.h4 h5 10.O-O Qd7 11.Bg2 Nf6 12.Ne2 d5 13.c3 d4 14.c4 e5 15.a3 a5 16.Bd2 
O-O 17.f3 Kh7 18.Kh2 Bh6 19.Bh3 Qe7 20.Bg5 Bxg5 21.hxg5 Ne8 22.f4 f6 23.
gxf6 Rxf6 24.Qd2 Ng7 25.fxe5 Rxf1 26.Rxf1 Nxe5 27.Kg2 Rf8 28.Rxf8 Qxf8 29.
Ng1 b6 30.b3 Qf6 31.Qe2 g5 32.Bf5+ Nxf5 33.exf5 Ng4 34.Qe6 Ne3+ 35.Kf2 Kg7
36.Qd7+ Qf7 37.Qxf7+ Kxf7 38.Nf3 Kf6 39.b4 Ng4+ 40.Ke2 axb4 41.axb4 Kxf5 
42.bxc5 bxc5 43.Nd2 h4 44.gxh4 gxh4 45.Ne4 h3 46.Kf1 Ne3+ 47.Kg1 Nxc4 48.
Nxc5 Nd2 49.Kh2 Kg4 50.Ne6 Nb3 51.Nd8 Na5 52.Kg1 Kg3 53.Kh1 Nb3 54.Ne6 Kh4
55.Kg1 Kg4 56.Kh2 Kh4 57.Nf4 Nd2 58.Ng6+ Kh5 59.Ne5 Kh4 60.Ng6+ Kg5 61.Ne5
Kf5 62.Nc6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Zuckerman, Bernard"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2455"]
[ECO "C93"]
[EventDate "1973.09.16"]
[PlyCount "97"]
[Source "Perpetual Check"]

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 h6 10.d4 Re8 11.Nbd2 Bf8 12.Nf1 Bb7 13.Ng3 Na5 14.Bc2 Nc4 15.b3 Nb6 
16.Bb2 g6 17.c4 Nbd7 18.cxb5 axb5 19.b4 Bg7 20.dxe5 Nxe5 21.Nxe5 dxe5 22.
Qe2 c6 23.Bb3 Qb6 24.Rad1 Rad8 25.Rxd8 Qxd8 26.Rd1 Qc7 27.Qd2 c5 28.bxc5 
Qxc5 29.Qd6 Qxd6 30.Rxd6 Re7 31.Rb6 Nxe4 32.Rxb7 Rxb7 33.Nxe4 Rd7 34.Kf1 
Kh7 35.Ke2 f5 36.Nc5 Re7 37.Ne6 Bf6 38.f4 Bh4 39.fxe5 h5 40.Kf3 Be1 41.Nf4
Kh6 42.Nd5 Re6 43.Nf6 Rc6 44.e6 Bb4 45.e7 Bxe7 46.Ng8+ Kh7 47.Nxe7 Rd6 48.
Bd5 g5 49.Bg8+ 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Krnic, Zdenko"]
[Black "Buljovcic, Ivan"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2435"]
[ECO "B53"]
[EventDate "1973.09.16"]
[PlyCount "63"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7 6.Bxc6 Qxc6 7.Nc3 Bg4 8.
Bg5 a6 9.Nd2 Rc8 10.f4 f6 11.Bh4 e5 12.Qe3 Be6 13.Bf2 Ne7 14.O-O exf4 15.
Qxf4 Ng6 16.Qg3 Be7 17.Nf3 O-O 18.Nd4 Qd7 19.Nd5 Bd8 20.a4 Re8 21.b3 Bf7 
22.Rfe1 Ba5 23.Re3 Bxd5 24.exd5 Rxe3 25.Qxe3 Bc3 26.Ra2 Ne5 27.h3 Qf7 28.
Ne2 Bb4 29.c4 Bc5 30.Qg3 Bxf2+ 31.Qxf2 Nd3 32.Qf5 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Masic, Ljubomir"]
[Black "Radulov, Ivan"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2530"]
[ECO "D55"]
[EventDate "1973.09.16"]
[PlyCount "104"]
[Source "Perpetual Check"]

1.c4 Nf6 2.Nf3 e6 3.Nc3 d5 4.d4 Be7 5.Bg5 O-O 6.e3 b6 7.Bxf6 Bxf6 8.cxd5 
exd5 9.Qd2 Bb7 10.Be2 Qe7 11.O-O Rd8 12.b4 Nd7 13.Rab1 Nf8 14.Rfc1 Ne6 15.
Qb2 Rab8 16.b5 g6 17.Qb3 Kg7 18.g3 h5 19.Bf1 h4 20.Bg2 Qd6 21.Nxh4 Bxh4 
22.gxh4 Rh8 23.Bxd5 Rxh4 24.Bxb7 Rxb7 25.Qd5 Qxh2+ 26.Kf1 Rb8 27.Qg2 Qd6 
28.Ne4 Qd5 29.Ng3 Qg5 30.Rc6 Rbh8 31.d5 Nc5 32.Qf3 Qe5 33.Rd1 Nd7 34.Kg1 
Nf6 35.d6 cxd6 36.Rcxd6 Ne4 37.Rd7 Ng5 38.Qd5 Qf6 39.Kf1 Rh2 40.f4 Ne6 41.
Ne4 Rh1+ 42.Ke2 R8h2+ 43.Kf3 Rh3+ 44.Ke2 Nxf4+ 45.exf4 R1h2+ 46.Nf2 Rxf2+ 
47.Kxf2 Qxf4+ 48.Kg1 Rg3+ 49.Qg2 Qe3+ 50.Kh2 Rxg2+ 51.Kxg2 Qe2+ 52.Kg1 
Qxa2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.20"]
[Round "4"]
[White "Forintos, Gyozo"]
[Black "Kirov, Nino"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2420"]
[ECO "D16"]
[EventDate "1973.09.16"]
[PlyCount "112"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bg4 6.e3 e5 7.dxe5 Qxd1+ 8.Nxd1 
Ne4 9.Bxc4 Bb4+ 10.Ke2 Nd7 11.h3 Nxe5 12.Bxf7+ Kxf7 13.hxg4 Nxg4 14.Rh4 h5
15.Ne5+ Nxe5 16.Rxe4 Bd6 17.Nc3 Rad8 18.Bd2 Nd7 19.Rc4 Nb6 20.Re4 Rhe8 21.
Rh4 g6 22.a5 Nd7 23.Ne4 Be5 24.Bc3 Nf6 25.Nxf6 Kxf6 26.Rf4+ Kg7 27.Rb4 Rb8
28.Rd1 Bxc3 29.Rd7+ Kh6 30.bxc3 b5 31.a6 c5 32.Rb2 b4 33.cxb4 cxb4 34.Rxa7
Re6 35.Rb3 Rc6 36.f4 g5 37.Kf3 gxf4 38.exf4 Rbb6 39.Ra8 Rxa6 40.Rxa6 Rxa6 
41.Rxb4 Ra3+ 42.Ke4 Rg3 43.Rb2 Kg6 44.f5+ Kf6 45.Rb6+ Kf7 46.Ke5 Rxg2 47.
Rb7+ Kg8 48.Kf6 Ra2 49.Kg6 Rg2+ 50.Kf6 Ra2 51.Rg7+ Kf8 52.Rh7 Ra6+ 53.Kg5 
h4 54.Kxh4 Kg8 55.Rb7 Kf8 56.Kg5 Rc6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Miscevic, Miodrag"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[BlackElo "2510"]
[ECO "B34"]
[EventDate "1973.09.16"]
[PlyCount "98"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Qd2 O-O 8.f3 
d5 9.exd5 Nxd5 10.Nxd5 Qxd5 11.Nxc6 Qxc6 12.c3 Bf5 13.Be2 Rfd8 14.Qc1 a5 
15.O-O a4 16.a3 h5 17.Qe1 Bf6 18.Qf2 h4 19.Rad1 Bc2 20.Bb5 Qxb5 21.Qxc2 e6
22.Rf2 h3 23.Rfd2 Rxd2 24.Rxd2 hxg2 25.Rxg2 Qd5 26.Qe2 Rd8 27.Rg4 Qc6 28.
h4 Rd5 29.Bd4 Bxd4+ 30.Rxd4 Rxd4 31.cxd4 Qc1+ 32.Kg2 Qf4 33.Qf2 Kg7 34.Kh3
Kh6 35.Kg2 Kh5 36.Qe1 Qxd4 37.Qe2 Qxh4 38.Qc2 b5 39.Qc8 Qg5+ 40.Kf1 Qf6 
41.Qc5+ g5 42.Qxb5 Qxf3+ 43.Ke1 Qe3+ 44.Kd1 Qd4+ 45.Kc1 e5 46.Kc2 e4 47.
Qf5 Qc4+ 48.Kd2 e3+ 49.Kd1 Qg4+ 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Ivkovic, Dusan"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[BlackElo "2560"]
[ECO "C07"]
[EventDate "1973.09.16"]
[PlyCount "98"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.c3 cxd4 6.cxd4 dxe4 7.Nxe4 Bb4+ 8.
Nc3 Nf6 9.Bd3 O-O 10.O-O b6 11.Bg5 Be7 12.Rc1 Nb4 13.Bxf6 Bxf6 14.Be4 Nd5 
15.Ne5 Bb7 16.Qf3 Qd6 17.Rfe1 Rad8 18.Rcd1 Nxc3 19.bxc3 Bxe5 20.Bxb7 Bxh2+
21.Kh1 Bf4 22.g3 Bg5 23.Kg2 g6 24.Re2 Rd7 25.Rde1 Rc7 26.Rb1 Re8 27.Ba6 
Rd8 28.Re5 Qa3 29.Rxg5 Qxa6 30.Rh1 Qb7 31.Qxb7 Rxb7 32.Rb5 Rc7 33.Rb3 Rdc8
34.Rc1 Rc4 35.Ra3 a5 36.Rb3 R8c6 37.Kf1 Rxd4 38.Ke2 Rdd6 39.c4 h5 40.Ke3 
Kf8 41.Rb5 Ke7 42.c5 Rd5 43.Rxb6 Rcxc5 44.Rb7+ Kf6 45.Rcb1 Rc3+ 46.Ke4 g5 
47.R1b3 Rc2 48.f4 gxf4 49.gxf4 Rxa2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Buljovcic, Ivan"]
[Black "Zuckerman, Bernard"]
[Result "1-0"]
[WhiteElo "2435"]
[BlackElo "2455"]
[ECO "B22"]
[EventDate "1973.09.16"]
[PlyCount "139"]
[Source "Perpetual Check"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Nf3 Nc6 6.cxd4 d6 7.Nc3 dxe5 8.dxe5 
Nxc3 9.Qxd8+ Nxd8 10.bxc3 Bd7 11.Be3 g6 12.Nd4 Bg7 13.f4 Rc8 14.Kd2 O-O 
15.Bd3 Nc6 16.Rhb1 b6 17.a4 Rfd8 18.Nxc6 Bxc6 19.g3 f6 20.Bd4 fxe5 21.fxe5
Bd5 22.a5 Bc4 23.Bxc4+ Rxc4 24.axb6 axb6 25.Kd3 Rcxd4+ 26.cxd4 Bxe5 27.Ra4
Rd6 28.Rb5 Bf6 29.Rab4 Kg7 30.Rxb6 Rd8 31.Ke4 h5 32.d5 Ra8 33.d6 exd6 34.
Rxd6 Re8+ 35.Kf3 Rf8 36.Kg2 Bc3 37.Rf4 Rf7 38.Rc4 Bb2 39.Rcc6 Rf6 40.Rxf6 
Bxf6 41.Kf3 Bb2 42.Ke4 Kf7 43.Kd5 Ba1 44.Re6 Bc3 45.Kd6 Bf6 46.Re1 Bc3 47.
Rf1+ Kg7 48.Ke6 Bd4 49.Rd1 Bc3 50.Rd7+ Kg8 51.Kd5 Bb2 52.Ke4 Bc3 53.Kf4 
Bf6 54.g4 hxg4 55.Kxg4 Kf8 56.Kf4 Kg8 57.Ke4 Kf8 58.Rc7 Kg8 59.Kd5 Bb2 60.
Ke6 Ba1 61.Rf7 Bc3 62.Rc7 Ba1 63.h4 Bb2 64.Rc2 Bd4 65.Rc4 Bb2 66.Rg4 Kh7 
67.Kf7 Kh6 68.Rxg6+ Kh5 69.Rg2 Bc3 70.Rh2 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Tringov, Georgi"]
[Black "Forintos, Gyozo"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2460"]
[ECO "C94"]
[EventDate "1973.09.16"]
[PlyCount "40"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d3 c5 11.Nbd2 Qc7 12.Nf1 c4 13.Bc2 cxd3 14.Qxd3 Be6 15.Ng3 
Nbd7 16.Nh4 Nc5 17.Qf3 d5 18.exd5 Bxd5 19.Qe3 Rfe8 20.Nhf5 Bf8 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Kirov, Nino"]
[Black "Masic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2420"]
[BlackElo "2360"]
[ECO "E69"]
[EventDate "1973.09.16"]
[PlyCount "67"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O e5 7.d4 Nbd7 8.e4 c6 
9.h3 Re8 10.Re1 exd4 11.Nxd4 Nb6 12.b3 d5 13.exd5 Rxe1+ 14.Qxe1 Nfxd5 15.
cxd5 Bxd4 16.dxc6 bxc6 17.Bh6 Bd7 18.Rd1 Qf6 19.Ne4 Qe5 20.Qd2 Bb2 21.Bf4 
Qg7 22.Nc5 Be8 23.Bh6 Qf6 24.Ne4 Qh8 25.Qd6 Bd7 26.Bg5 Be5 27.Qe7 Be6 28.
Nf6+ Kg7 29.Ng4 h6 30.Bxh6+ Kh7 31.Qh4 Bxg4 32.hxg4 Nd5 33.Bxd5 cxd5 34.
Rxd5 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Radulov, Ivan"]
[Black "Hecht, Hans-Joachim"]
[Result "0-1"]
[WhiteElo "2530"]
[BlackElo "2505"]
[ECO "A04"]
[EventDate "1973.09.16"]
[PlyCount "120"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.c3 d5 8.Qe2 d4 9.
c4 e5 10.Ne1 Be6 11.Bd2 O-O 12.a3 a6 13.f4 f6 14.a4 Qd7 15.Na3 Nb4 16.Nac2
Nec6 17.Nxb4 cxb4 18.Nc2 a5 19.Ne1 Nb8 20.f5 gxf5 21.exf5 Bxf5 22.Bxb7 
Qxb7 23.Rxf5 Na6 24.b3 Nc5 25.Qd1 Rae8 26.Bc1 Qc8 27.g4 e4 28.Bf4 Re5 29.
dxe4 Nxe4 30.Bxe5 fxe5 31.Qf3 Nc3 32.Rxf8+ Qxf8 33.c5 e4 34.Qf5 Qxf5 35.
gxf5 Kf7 36.Ng2 d3 37.Kf1 Bh6 38.Kf2 d2 39.Ne3 Ke7 40.f6+ Kd7 41.f7 Bf8 
42.Rd1 Nxd1+ 43.Nxd1 Bxc5+ 44.Ke2 Ke7 45.Kxd2 Kxf7 46.Ne3 Bd6 47.Nc4 Bxh2 
48.Nxa5 Ke6 49.Nc6 Bd6 50.a5 Kd5 51.Nd8 h5 52.a6 Bc5 53.Nf7 h4 54.Ng5 Ba7 
55.Ke2 Ke5 56.Nh3 Kf5 57.Nf2 Kf4 58.Nh3+ Kg3 59.Ng5 h3 60.Nxe4+ Kg2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.21"]
[Round "5"]
[White "Quinteros, Miguel Angel"]
[Black "Krnic, Zdenko"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2400"]
[ECO "B44"]
[EventDate "1973.09.16"]
[PlyCount "129"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.Bf4 e5 7.Be3 a6 8.N5c3 
Nf6 9.Bc4 Be7 10.Nd5 Nxd5 11.Bxd5 O-O 12.Na3 Kh8 13.Nc4 f5 14.exf5 Bxf5 
15.c3 Qe8 16.f3 Qg6 17.O-O Bd3 18.Rf2 Bh4 19.Rd2 e4 20.Bxe4 Bxe4 21.fxe4 
Qxe4 22.Bd4 Nxd4 23.cxd4 Rae8 24.Qb1 d5 25.Qxe4 Rxe4 26.Ne5 Rxd4 27.Rxd4 
Bf2+ 28.Kf1 Bxd4+ 29.Nf3 g5 30.h3 Bf6 31.Rc1 Rf7 32.b3 Kg7 33.Ke2 Kg6 34.
Rc5 Rd7 35.g4 h5 36.Kd3 h4 37.Rc1 Kf7 38.Rf1 Kg6 39.Nd4 Re7 40.Nf3 Rc7 41.
Nd4 b5 42.a3 Re7 43.Rc1 Re4 44.Nf5 Rf4 45.Ke2 b4 46.Rc6 a5 47.Ra6 bxa3 48.
Rxa5 Re4+ 49.Kd3 Rf4 50.Ke2 Bb2 51.Ne7+ Kf7 52.Nxd5 Re4+ 53.Kf1 Rd4 54.Ne3
Rd3 55.Nc2 Rf3+ 56.Kg2 Rg3+ 57.Kh2 Bc1 58.Nxa3 Rxb3 59.Nc4 Bf4+ 60.Kg2 
Rg3+ 61.Kf2 Ke6 62.Ra3 Kd5 63.Ne3+ Kc5 64.Nc2 Rxa3 65.Nxa3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Parma, Bruno"]
[Black "Ivkovic, Dusan"]
[Result "1-0"]
[WhiteElo "2500"]
[ECO "B00"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.e4 Nc6 2.Bb5 a6 3.Bxc6 dxc6 4.d4 Nf6 5.f3 e6 6.Be3 Be7 7.Nc3 a5 8.Nge2 
b6 9.Nf4 Ba6 10.Nd3 Qc8 11.O-O Qb7 12.Qd2 h6 13.Qf2 O-O-O 14.Rfb1 Nd7 15.
Rd1 g5 16.f4 f5 17.exf5 exf5 18.fxg5 hxg5 19.Qxf5 Rdf8 20.Qg4 Bxd3 21.cxd3
Bd6 22.g3 Rh7 23.Bxg5 Rg8 24.Ne4 Kb8 25.Qe6 Rhg7 26.Nxd6 cxd6 27.Qxd6+ Ka7
28.Bf4 Nf8 29.Re1 Rd7 30.Qe5 Ng6 31.Qe4 Re7 32.Be5 Qd7 33.Re2 Kb7 34.Rf1 
Rh7 35.Rf6 Nxe5 36.dxe5 Re7 37.e6 Qd6 38.Rf7 Re8 39.Rxe7+ Rxe7 40.d4 b5 
1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Uhlmann, Wolfgang"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2560"]
[ECO "E74"]
[EventDate "1973.09.16"]
[PlyCount "69"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 e6 9.
dxe6 Bxe6 10.Bxd6 Re8 11.Nf3 Nc6 12.O-O Qa5 13.Nd2 Nd4 14.Bd3 Nd7 15.Nd5 
Bxd5 16.cxd5 b5 17.Re1 c4 18.Bf1 Qb6 19.Bf4 Nc5 20.Kh1 g5 21.Be3 Qf6 22.f3
Na4 23.Nxc4 bxc4 24.Qxa4 Reb8 25.Rad1 Nb5 26.Bxc4 Qxb2 27.Rb1 Nc3 28.Rxb2 
Nxa4 29.Rxb8+ Rxb8 30.Bxa7 Ra8 31.Bf2 Nc3 32.e5 Nxa2 33.e6 Nc3 34.e7 Re8 
35.d6 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Velimirovic, Dragoljub"]
[Black "Buljovcic, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2435"]
[ECO "B94"]
[EventDate "1973.09.16"]
[PlyCount "115"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.f4 Qb6 8.Qd2 
e6 9.O-O-O Be7 10.g4 h6 11.Bxf6 Bxf6 12.h4 Qxd4 13.Qxd4 Bxd4 14.Rxd4 Ke7 
15.Bg2 Nf6 16.Rhd1 g5 17.e5 dxe5 18.fxe5 Nd7 19.hxg5 hxg5 20.Bxb7 Ra7 21.
Bxc8 Rxc8 22.Re1 Rc5 23.Rde4 Rac7 24.R1e2 Rc4 25.Kd2 Rxe4 26.Rxe4 Rc5 27.
b4 Rxe5 28.a4 a5 29.Rxe5 Nxe5 30.bxa5 Kd7 31.Ne4 Nxg4 32.Kc3 Ne3 33.Kd3 
Nd5 34.Nxg5 f6 35.Ne4 f5 36.Nc5+ Kd6 37.Kc4 Nc7 38.a6 Kc6 39.a5 f4 40.Nd3 
Nxa6 41.Nxf4 Nc7 42.Nd3 Kd6 43.Nb4 e5 44.a6 Na8 45.c3 Nc7 46.a7 e4 47.Kb3 
Na8 48.Kc4 Nc7 49.Na6 Na8 50.Kb5 e3 51.Nb4 e2 52.Nd3 Kc7 53.Ka6 Kc6 54.
Nb4+ Kc7 55.Nc2 Kc8 56.Ne1 Kc7 57.Nf3 Kc8 58.c4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Zuckerman, Bernard"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2520"]
[ECO "B43"]
[EventDate "1973.09.16"]
[PlyCount "118"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Bb4 7.Ne2 Nf6 8.Bg2 d6
9.O-O Nbd7 10.a3 Bc5 11.b3 O-O 12.Bb2 Ne5 13.h3 b5 14.Kh2 Bb7 15.Nf4 Ned7 
16.Qe2 Bd4 17.Nd1 Bxb2 18.Nxb2 Qc3 19.Ra2 Rac8 20.Nd1 Qc7 21.Nd3 e5 22.Nb4
Nc5 23.Nc3 Ne6 24.Ncd5 Nxd5 25.exd5 Nd4 26.Qd2 Qc3 27.Rd1 Qxd2 28.Rxd2 Rc3
29.Nc6 Bxc6 30.dxc6 a5 31.Ra1 Rd8 32.Re1 b4 33.axb4 axb4 34.Ra1 Nxc6 35.
Ra4 Nd4 36.Rxb4 Kf8 37.Rc4 Rc8 38.Rxc8+ Rxc8 39.c4 Rb8 40.Bd5 Rxb3 41.Ra2 
Rb8 42.Ra7 Ne6 43.Rd7 Rb6 44.Kg2 h6 45.Bxe6 fxe6 46.c5 dxc5 47.Rc7 Rb5 48.
Kf3 Rb3+ 49.Ke4 Rb2 50.Kxe5 Rxf2 51.Kxe6 Kg8 52.Rxc5 Rf3 53.g4 Rxh3 54.Kf5
Rf3+ 55.Kg6 Rf6+ 56.Kh5 Kh7 57.g5 g6+ 58.Kh4 Rf4+ 59.Kg3 hxg5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Krnic, Zdenko"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2530"]
[ECO "B57"]
[EventDate "1973.09.16"]
[PlyCount "40"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nxc6 bxc6 8.
O-O e6 9.b3 Be7 10.Bb2 O-O 11.Qe2 Nd7 12.Na4 Qc7 13.f4 Nb6 14.Nxb6 axb6 
15.a4 Re8 16.Rf3 b5 17.Rg3 g6 18.Qh5 Bf8 19.f5 Bg7 20.Bxg7 gxh5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Hecht, Hans-Joachim"]
[Black "Kirov, Nino"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2420"]
[ECO "B48"]
[EventDate "1973.09.16"]
[PlyCount "62"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nc6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Ne5 9.h3 Bc5 10.Qe2 d6 11.f4 Ng6 12.Nb3 Bxe3+ 13.Qxe3 b5 14.a3 O-O 15.Rae1
Bb7 16.e5 dxe5 17.fxe5 Nd5 18.Nxd5 Bxd5 19.Bxg6 hxg6 20.Nd4 Qb7 21.Rf2 a5 
22.h4 b4 23.axb4 axb4 24.Qh3 Ra5 25.h5 gxh5 26.Qxh5 Rfa8 27.Re3 g6 28.Qh6 
Qb8 29.Rf4 Qf8 30.Qxf8+ Kxf8 31.Nf3 Rc5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.22"]
[Round "6"]
[White "Masic, Ljubomir"]
[Black "Tringov, Georgi"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2450"]
[ECO "E97"]
[EventDate "1973.09.16"]
[PlyCount "76"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Nd2 c5 10.Rb1 Ne8 11.b4 b6 12.bxc5 bxc5 13.Qa4 f5 14.f3 Kh8 15.Nb3 Ng8 
16.Na5 Ngf6 17.Nc6 Qd7 18.Bd3 Nh5 19.Ne2 Nef6 20.h3 f4 21.Bc2 g5 22.Bd1 
Qe8 23.Rf2 Ng3 24.Nxg3 fxg3 25.Rfb2 g4 26.hxg4 Nxe4 27.fxe4 Qf7 28.Bf3 
Bxg4 29.Qd1 Qh5 30.Be3 Rxf3 31.gxf3 Bxf3 32.Rb8+ Bf8 33.Qxf3 Qxf3 34.R8b3 
Qxe4 35.R1b2 Qxc4 36.Rb8 Rxb8 37.Rxb8 Kg7 38.Rb7+ Kg6 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Forintos, Gyozo"]
[Black "Masic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2360"]
[ECO "E70"]
[EventDate "1973.09.16"]
[PlyCount "114"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nge2 O-O 6.Ng3 c5 7.d5 e6 8.Be2 exd5 
9.exd5 Nbd7 10.O-O Ne8 11.Be3 h6 12.Qd2 Kh7 13.f4 f5 14.h3 Ndf6 15.Bf2 Bd7
16.Rab1 h5 17.Rfe1 Ng8 18.Nf1 Nh6 19.Nh2 Bf6 20.Nf3 Nf7 21.a3 a5 22.Rec1 
b6 23.Bd3 Nc7 24.Re1 Re8 25.Rxe8 Bxe8 26.Qc2 Kg7 27.g4 hxg4 28.hxg4 fxg4 
29.Nh2 Bd4 30.Ne4 Qh4 31.Bxd4+ cxd4 32.Qf2 Qxf2+ 33.Kxf2 Bd7 34.Kg3 Na6 
35.Rd1 Nc5 36.Nf2 Bf5 37.Nhxg4 Re8 38.Kf3 Nxd3 39.Nxd3 Nh6 40.Ndf2 Bxg4+ 
41.Nxg4 Nf5 42.a4 Re7 43.Kf2 Re4 44.Kf3 Re8 45.b3 Re7 46.Rd3 Re1 47.Nf2 
Kf7 48.Nh3 Ke7 49.Ng5 Kd7 50.Ne6 Rg1 51.Kf2 Rg4 52.Rh3 Nh4 53.Rg3 Rxg3 54.
Kxg3 d3 55.Kf2 Nf5 56.Ke1 Ng3 57.Ng5 Ne2 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Tringov, Georgi"]
[Black "Hecht, Hans-Joachim"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2505"]
[ECO "C04"]
[EventDate "1973.09.16"]
[PlyCount "84"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Ne4 6.Bd3 Nxd2 7.Bxd2 Nb4 8.Bxb4
Bxb4+ 9.c3 Be7 10.h4 Bd7 11.h5 c5 12.h6 g6 13.dxc5 Qc7 14.Qe2 Qxc5 15.O-O 
a6 16.Nh2 Bb5 17.Ng4 Bxd3 18.Qxd3 O-O 19.Qf3 Rfc8 20.Rad1 Bg5 21.Rd4 Qe7 
22.Rfd1 Rc7 23.b3 Rf8 24.c4 f5 25.exf6 Bxf6 26.Nxf6+ Rxf6 27.Qe3 dxc4 28.
bxc4 Rf8 29.Rd6 e5 30.c5 Re8 31.a4 Qf7 32.Rd8 Re7 33.Qe4 Rf8 34.f3 Qf4 35.
Qd5+ Qf7 36.Qe4 Qf4 37.Rxf8+ Kxf8 38.Rd8+ Re8 39.Rxe8+ Kxe8 40.Qxb7 Qc1+ 
41.Kf2 Qd2+ 42.Kg3 Qg5+ 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Kirov, Nino"]
[Black "Krnic, Zdenko"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2400"]
[ECO "A25"]
[EventDate "1973.09.16"]
[PlyCount "41"]
[Source "Perpetual Check"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1 a5 6.a3 d6 7.b4 axb4 8.axb4 Bf5 
9.d3 Qd7 10.b5 Nd8 11.Nd5 Nf6 12.e4 Bg4 13.f3 Be6 14.Bg5 Nh5 15.Ne2 f6 16.
Be3 f5 17.O-O O-O 18.f4 fxe4 19.dxe4 Bg4 20.Qd2 Ne6 21.Rf2 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Radulov, Ivan"]
[Black "Zuckerman, Bernard"]
[Result "1-0"]
[WhiteElo "2530"]
[BlackElo "2455"]
[ECO "C45"]
[EventDate "1973.09.16"]
[PlyCount "87"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nxc6 Qxe4+ 6.Be2 dxc6 7.O-O Be6 
8.Nc3 Qe5 9.f4 Qc5+ 10.Kh1 Nf6 11.f5 Bd7 12.Qd3 O-O-O 13.Be3 Qa5 14.Qc4 
Bxf5 15.Qxf7 Bg6 16.Qc4 Bd6 17.a3 Rhe8 18.Bg1 Ne4 19.Rfe1 Kb8 20.Bg4 Nxc3 
21.bxc3 Rxe1 22.Rxe1 Bh5 23.Bh3 Qd5 24.Qh4 Rf8 25.c4 Qd2 26.Rf1 Bg6 27.Rf2
Qd1 28.Bg4 Qxg1+ 29.Kxg1 Bc5 30.Bf3 Bxc2 31.Qg5 Bf5 32.g4 Bxf2+ 33.Kxf2 
Be4 34.Qe7 Rxf3+ 35.Ke2 b6 36.Qxe4 Rh3 37.Qxc6 Rxh2+ 38.Kd3 Rh3+ 39.Kd4 
Rxa3 40.Qe8+ Kb7 41.Qe4+ Ka6 42.Qxh7 g5 43.Qg8 Ra5 44.Qc8# 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Buljovcic, Ivan"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2560"]
[ECO "C09"]
[EventDate "1973.09.16"]
[PlyCount "39"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Bg5 O-O 11.c3 Bg4 12.Bh4 Qb6 13.Bd3 Ne5 14.Be2 Nc4 
15.Bxe7 Bxe7 16.Qxd5 Nxb2 17.Rab1 Na4 18.Qc4 Bd7 19.Nbd4 Qd6 20.Rxb7 
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Miscevic, Miodrag"]
[Black "Parma, Bruno"]
[Result "0-1"]
[BlackElo "2500"]
[ECO "B09"]
[EventDate "1973.09.16"]
[PlyCount "112"]
[Source "Perpetual Check"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5 6.Bb5+ Bd7 7.e5 Ng4 8.e6 Bxb5 
9.exf7+ Kd7 10.Nxb5 Qa5+ 11.Nc3 cxd4 12.Nxd4 Bxd4 13.Qxg4+ Qf5 14.Qxf5+ 
gxf5 15.Bd2 Rf8 16.O-O-O Rxf7 17.Rhe1 Nc6 18.Nb5 Rg8 19.g3 Bg7 20.Be3 a6 
21.Na3 b5 22.c4 b4 23.Nc2 Kc7 24.c5 Rd8 25.cxd6+ Rxd6 26.Bc5 Rxd1+ 27.Rxd1
a5 28.Ne3 e5 29.Bd6+ Kb7 30.fxe5 Bh6 31.Kd2 Rd7 32.Ke2 Bxe3 33.Kxe3 Nxe5 
34.Ke2 Nc4 35.Bf8 Rxd1 36.Kxd1 Nxb2+ 37.Kc2 Nc4 38.Kb3 Nd2+ 39.Ka4 Ka6 40.
Bc5 Nc4 41.Bf8 Nb6+ 42.Kb3 Kb5 43.Bh6 a4+ 44.Kc2 Kc4 45.h3 Nd5 46.Kb2 Kd3 
47.Kc1 Nc3 48.Kb2 Ne2 49.Bf8 Kc4 50.Bd6 h5 51.h4 Nc3 52.Be5 a3+ 53.Ka1 b3 
54.axb3+ Kxb3 55.Bd6 Nb5 56.Bf4 a2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.24"]
[Round "7"]
[White "Quinteros, Miguel Angel"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[WhiteElo "2520"]
[BlackElo "2510"]
[ECO "A46"]
[EventDate "1973.09.16"]
[PlyCount "54"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 c5 3.c3 e6 4.Bg5 h6 5.Bxf6 Qxf6 6.e3 Nc6 7.Nbd2 d5 8.Bb5 
Bd6 9.e4 cxd4 10.cxd4 dxe4 11.Nxe4 Bb4+ 12.Kf1 Qf5 13.Bd3 O-O 14.a3 Be7 
15.Qe2 Rd8 16.Nc3 Qf4 17.Qe3 Bg5 18.Qxf4 Bxf4 19.Rd1 Kf8 20.Bb5 Ne7 21.Ke2
b6 22.g3 Bd6 23.d5 exd5 24.Nxd5 Nxd5 25.Rxd5 Bb7 26.Rd3 a6 27.Rhd1 axb5 
0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Ivkovic, Dusan"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[ECO "C68"]
[EventDate "1973.09.16"]
[PlyCount "137"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.d3 Qf6 8.Re1 
Bxf3 9.Qxf3 O-O-O 10.Qxf6 Nxf6 11.Bg5 Be7 12.Nd2 Ng8 13.Be3 f6 14.f4 exf4 
15.Bxf4 g5 16.Be3 Nh6 17.Rf1 Rhf8 18.Nf3 Nf7 19.Rf2 c5 20.Raf1 Rg8 21.Nd2 
Ne5 22.g3 b6 23.Kg2 Rg7 24.Rf5 Kd7 25.Nb1 Kc8 26.Nc3 c6 27.Bg1 Nf7 28.Na4 
Kb7 29.b4 Nd6 30.R5f3 cxb4 31.Bxb6 Rdg8 32.R3f2 Ne8 33.Be3 Rg6 34.Rb1 Kc7 
35.Bb6+ Kc8 36.Bc5 Bxc5 37.Nxc5 a5 38.Nb3 Nc7 39.Nxa5 c5 40.Nb3 Ne6 41.Rf5
R8g7 42.Nxc5 Nd4 43.Rf2 Nc6 44.Rb3 Ra7 45.c3 Ra3 46.cxb4 Rxb3 47.axb3 Nxb4
48.d4 Kc7 49.Rf1 Kd6 50.Ra1 Rg8 51.Ra7 Nc2 52.Ra6+ Ke7 53.d5 f5 54.d6+ Kf6
55.d7+ Ke7 56.Re6+ Kd8 57.Rc6 Ke7 58.e5 Nd4 59.Rc8 Rd8 60.e6 Nxe6 61.Nxe6 
Rxd7 62.Nxg5 Rd2+ 63.Kf3 Rd3+ 64.Kf4 Rxb3 65.Rc6 h4 66.gxh4 Rb4+ 67.Kg3 
Kf8 68.h5 Kg7 69.h6+ 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Parma, Bruno"]
[Black "Buljovcic, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2435"]
[ECO "B97"]
[EventDate "1973.09.16"]
[PlyCount "27"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Qa3 10.Bxf6 gxf6 11.Be2 Qb4 12.O-O h5 13.Kh1 Qb6 14.Rf3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Uhlmann, Wolfgang"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2520"]
[ECO "A21"]
[EventDate "1973.09.16"]
[PlyCount "116"]
[Source "Perpetual Check"]

1.c4 e5 2.Nc3 d6 3.Nf3 g6 4.d4 Bg7 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.Be3 h6 8.
O-O-O+ Bd7 9.g4 Kc8 10.h3 Be6 11.b3 Ne7 12.Bg2 f5 13.Bc5 Nec6 14.Nh4 Nd7 
15.Ba3 e4 16.Nd5 Nde5 17.Nf4 Bf7 18.gxf5 g5 19.Nfg6 Re8 20.Nxe5 Nxe5 21.f6
Bxf6 22.Nf5 a5 23.Bb2 Ra6 24.Ng3 e3 25.fxe3 Ng6 26.Bxf6 Rxf6 27.Ne4 Rfe6 
28.Nc5 Rxe3 29.Bxb7+ Kb8 30.Bc6 Rc8 31.Rhf1 Nf4 32.Rd2 Rxe2 33.Rxe2 Nxe2+ 
34.Kd2 Nf4 35.h4 Rd8+ 36.Ke3 Ka7 37.Be4 Re8 38.hxg5 hxg5 39.Rg1 Rg8 40.Rh1
Ne6 41.Nxe6 Bxe6 42.Rh7 Rc8 43.Kd4 Kb8 44.Re7 Rd8+ 45.Kc5 Bd7 46.Rg7 g4 
47.Bd5 Bc8 48.Kb5 Bb7 49.Be6 Rd2 50.c5 Bd5 51.Rd7 Kb7 52.Bxd5+ Rxd5 53.Rg7
Rf5 54.a3 Rh5 55.Kc4 Rh3 56.a4 Rh6 57.Kb5 Rh5 58.Rg6 g3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Velimirovic, Dragoljub"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2530"]
[ECO "B57"]
[EventDate "1973.09.16"]
[PlyCount "86"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nde2 e6 8.Bb3 
a6 9.Bg5 Be7 10.Bxf6 gxf6 11.O-O Bd7 12.Kh1 O-O-O 13.f4 Kb8 14.f5 Qc5 15.
Nf4 Na5 16.Qh5 Rdf8 17.Rad1 Nc4 18.fxe6 Qxh5 19.Nxh5 Bxe6 20.Bxc4 Bxc4 21.
Rf2 f5 22.b3 Be6 23.exf5 Bc8 24.Nd5 Bd8 25.c4 Re8 26.Nhf6 Re5 27.g4 h5 28.
Nxh5 Bh4 29.Rf3 Bxf5 30.Rxf5 Rxf5 31.gxf5 Rxh5 32.Rf1 Bg3 33.Kg2 Be5 34.
Nf4 Rxf5 35.Kg3 Rg5+ 36.Kf3 f5 37.h3 Kc8 38.Rh1 Kd7 39.h4 Rg4 40.Ne2 Ke7 
41.h5 Kf7 42.h6 Rg8 43.Nf4 Rg4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Zuckerman, Bernard"]
[Black "Kirov, Nino"]
[Result "1-0"]
[WhiteElo "2455"]
[BlackElo "2420"]
[ECO "B80"]
[EventDate "1973.09.16"]
[PlyCount "79"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.Re1 Be7 10.Nxc6 Bxc6 11.a4 O-O 12.a5 Nd7 13.b3 Bf6 14.Re3 Nc5 15.Ba3 Rc8
16.Ra2 b5 17.axb6 Qxb6 18.Qxd6 Rfd8 19.Qxc5 Qxc5 20.Bxc5 Bxc3 21.Bf3 Bd2 
22.Re2 Bc3 23.Re3 Bd2 24.Bb6 Bxe3 25.Bxd8 Rxd8 26.fxe3 Bb7 27.Be2 Bxe4 28.
Bxa6 Rd1+ 29.Kf2 h5 30.Bd3 Bxd3 31.cxd3 Rxd3 32.Rb2 Kf8 33.Ke2 Rd7 34.b4 
Ke7 35.b5 g5 36.e4 Rb7 37.Kd3 Kd6 38.Kd4 f5 39.e5+ Kd7 40.Kc5 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Krnic, Zdenko"]
[Black "Tringov, Georgi"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2450"]
[ECO "B51"]
[EventDate "1973.09.16"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.e5 Qa5+ 6.Nc3 Ne4 7.Bd2 Nxc3 8.
Bxd7+ Bxd7 9.Bxc3 Qa6 10.exd6 exd6 11.Qe2+ Qxe2+ 12.Kxe2 f6 13.a4 Kf7 14.
Rhd1 Bf5 15.Rd2 Be7 16.Re1 Rhe8 17.Kd1 Bf8 18.Rde2 Rxe2 19.Rxe2 Bd7 20.b3 
Bc6 21.Re3 Rc8 22.g3 b6 23.Nd2 d5 24.f4 Bd7 25.Nf3 Bf5 26.Ne1 h6 27.Nd3 g5
28.fxg5 hxg5 29.Kc1 c4 30.Nf2 g4 31.Kb2 Bd6 32.Re2 Rh8 33.Nd1 cxb3 34.cxb3
Be4 35.Rf2 f5 36.Bd2 Bf3 37.Nc3 Be7 38.Bf4 Bf6 39.Rd2 a6 40.Na2 Re8 41.Nb4
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.25"]
[Round "8"]
[White "Hecht, Hans-Joachim"]
[Black "Forintos, Gyozo"]
[Result "1-0"]
[WhiteElo "2505"]
[BlackElo "2460"]
[ECO "B38"]
[EventDate "1973.09.16"]
[PlyCount "99"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 g6 3.c4 Nc6 4.d4 cxd4 5.Nxd4 d6 6.Nc3 Nf6 7.Be2 Bg7 8.Be3 
Nd7 9.Qd2 Nc5 10.O-O O-O 11.Rad1 Bd7 12.f3 a5 13.b3 Nxd4 14.Bxd4 Bc6 15.
Be3 Qb6 16.Nb5 Rfc8 17.Rc1 Qd8 18.Rfd1 Qf8 19.Nc3 Rab8 20.Bf1 Kh8 21.Nd5 
b6 22.Qf2 Rb7 23.Qh4 Kg8 24.Re1 Re8 25.Rcd1 f6 26.Bd4 Qf7 27.Qf2 Qf8 28.
Qb2 Ra8 29.a3 Nd7 30.b4 axb4 31.axb4 b5 32.cxb5 Bxd5 33.exd5 Bh6 34.g3 g5 
35.Ra1 Rc8 36.Rac1 Rcb8 37.Qc2 Ne5 38.Qf5 Qe8 39.b6 Qf7 40.Rc8+ Kg7 41.
Rxb8 Rxb8 42.Bd3 Qg6 43.Qxg6+ hxg6 44.Be2 Nd7 45.Ba6 Nxb6 46.Rxe7+ Kf8 47.
Rb7 Rxb7 48.Bxb7 Nd7 49.Bc6 Ke7 50.Bxd7 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Masic, Ljubomir"]
[Black "Hecht, Hans-Joachim"]
[Result "1-0"]
[WhiteElo "2360"]
[BlackElo "2505"]
[ECO "A30"]
[EventDate "1973.09.16"]
[PlyCount "129"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.b3 O-O 7.Bb2 c5 8.Nc3 d6 
9.d4 cxd4 10.Qxd4 Nc6 11.Qf4 Qb8 12.Rad1 Rd8 13.e4 a6 14.a3 Ne5 15.Qe3 
Nfd7 16.Nd4 Qc7 17.Rc1 Rac8 18.f4 Ng4 19.Qe2 Ngf6 20.Nd1 Bf8 21.Nf2 e5 22.
Nf5 Re8 23.Qd2 Nc5 24.Qc2 g6 25.Ne3 Bg7 26.fxe5 dxe5 27.Nd5 Nxd5 28.exd5 
f5 29.b4 Nd7 30.Qb3 Qd6 31.Nd3 e4 32.Bxg7 Kxg7 33.Nf4 Re5 34.Kh1 Rc7 35.
Qb2 Kg8 36.c5 bxc5 37.bxc5 Nxc5 38.Rxc5 Rxc5 39.Qxb7 Rc7 40.Qb8+ Kg7 41.
Ne6+ Rxe6 42.dxe6 Rc6 43.Qxd6 Rxd6 44.e7 Re6 45.Rc1 Rxe7 46.Bf1 Re5 47.Rc6
a5 48.Kg1 g5 49.Rb6 f4 50.Rb5 Kf6 51.Rb6+ Re6 52.Rxe6+ Kxe6 53.Ba6 Ke5 54.
Kf2 Kd4 55.Ke2 f3+ 56.Kd2 e3+ 57.Kc2 g4 58.Bc8 h5 59.Bd7 Ke5 60.Kd3 e2 61.
Kd2 Kf6 62.Bc6 Kg6 63.h3 Kf6 64.Bd7 Ke7 65.Bc8 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Forintos, Gyozo"]
[Black "Krnic, Zdenko"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2400"]
[ECO "D80"]
[EventDate "1973.09.16"]
[PlyCount "126"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.Bh4 c5 6.e3 Bg7 7.cxd5 Nxc3 8.bxc3 
Qxd5 9.Nf3 Nc6 10.Be2 O-O 11.O-O cxd4 12.cxd4 b6 13.Qb3 Qe4 14.Bd3 Qg4 15.
h3 Qh5 16.Qb5 Bb7 17.Qxh5 gxh5 18.Rab1 Rad8 19.Rfd1 Rd7 20.Ng5 h6 21.Ne4 
Ne5 22.dxe5 Rxd3 23.Rxd3 Bxe4 24.Rbd1 Bxd3 25.Rxd3 e6 26.Rd7 Bxe5 27.Rxa7 
Rc8 28.f4 Bd6 29.Bf6 Bc5 30.Kf2 Kh7 31.Kf3 Kg6 32.Bh4 b5 33.Ra5 b4 34.Ra6 
Bf8 35.g4 hxg4+ 36.hxg4 Kh7 37.f5 exf5 38.gxf5 Bg7 39.Bg3 Rc3 40.Bd6 Rc4 
41.Ra7 Kg8 42.Ra8+ Kh7 43.Ra7 Kg8 44.e4 Rc3+ 45.Kf4 b3 46.axb3 Rxb3 47.e5 
Rb1 48.f6 Rf1+ 49.Kg4 Bxf6 50.exf6 Rxf6 51.Be5 Rg6+ 52.Kh5 Kf8 53.Bf4 Kg7 
54.Be5+ Kf8 55.Ra8+ Ke7 56.Bf4 Ke6 57.Bxh6 Rg1 58.Be3 Rg3 59.Ra6+ Kf5 60.
Ra5+ Ke4 61.Bg5 Rd3 62.Kg4 f5+ 63.Kh5 Rd1 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Kirov, Nino"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2510"]
[ECO "E62"]
[EventDate "1973.09.16"]
[PlyCount "78"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nc6 7.Nc3 Bg4 8.d5 Na5 
9.b3 c5 10.dxc6 bxc6 11.Bb2 Rb8 12.Qd2 Qb6 13.Na4 Qa6 14.Rac1 Be6 15.Qc2 
Bf5 16.Qd1 c5 17.Nd2 Nc6 18.Nb1 Nb4 19.Nbc3 Bd7 20.Qd2 Qc8 21.Ba1 Bh3 22.
Nb2 h5 23.Nd3 Bxg2 24.Kxg2 Nc6 25.Nd5 Nxd5 26.Bxg7 Kxg7 27.cxd5 Nb4 28.Nf4
Qf5 29.h4 Na6 30.Rc4 Rb4 31.Rfc1 Rfb8 32.e4 Qf6 33.Nd3 Rxc4 34.Rxc4 Rb7 
35.Qe1 Nc7 36.b4 cxb4 37.Rxb4 Rxb4 38.Qxb4 Na8 39.a4 Nb6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Radulov, Ivan"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2560"]
[ECO "C09"]
[EventDate "1973.09.16"]
[PlyCount "21"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.exd5 exd5 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Bg5 O-O 11.Bh4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Quinteros, Miguel Angel"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2500"]
[ECO "B36"]
[EventDate "1973.09.16"]
[PlyCount "26"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be3 
Bg7 9.f3 O-O 10.Qd2 Be6 11.Rc1 Qa5 12.Nd5 Qxa2 13.Nxe7+ Kh8 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Buljovcic, Ivan"]
[Black "Ivkovic, Dusan"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[ECO "B40"]
[EventDate "1973.09.16"]
[PlyCount "93"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.e5 Ng8 7.Bd3 Qc7 8.Qe2 
Ne7 9.Ndb5 axb5 10.Nxb5 Qc6 11.Nd6+ Kd8 12.Nxf7+ Ke8 13.Nxh8 g6 14.h4 Bg7 
15.h5 g5 16.h6 Bxh8 17.Qh5+ Kd8 18.Qf7 Qxg2 19.Rf1 Nbc6 20.Qf8+ Kc7 21.
Qxh8 Nd4 22.Qf8 Nf3+ 23.Ke2 Nd4+ 24.Kd1 Ndf5 25.Be3 b6 26.Qf6 Nd5 27.Qf7 
Ndxe3+ 28.fxe3 Nxe3+ 29.Ke1 Nxf1 30.Qxf1 Qg3+ 31.Kd2 Qxe5 32.Bxh7 Qh2+ 33.
Kc3 Qxh6 34.Be4 d5 35.Qf7+ Bd7 36.Bd3 Qh8+ 37.Kb3 Kd6 38.a3 Rf8 39.Qg6 Rg8
40.Qf7 Qg7 41.Qf2 Kc7 42.Rh1 Qe5 43.Rh7 Rg7 44.Rh8 Qf4 45.Qe1 Rf7 46.Qc3+ 
Kb7 47.Rg8 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.26"]
[Round "9"]
[White "Tringov, Georgi"]
[Black "Zuckerman, Bernard"]
[Result "1-0"]
[WhiteElo "2450"]
[BlackElo "2455"]
[ECO "A00"]
[EventDate "1973.09.16"]
[PlyCount "0"]
[Source "Perpetual Check"]

1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Krnic, Zdenko"]
[Black "Masic, Ljubomir"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2360"]
[ECO "B81"]
[EventDate "1973.09.16"]
[PlyCount "48"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.Rg1 Nc6 8.Be3 a6 
9.Be2 Qa5 10.Qd2 Nxd4 11.Bxd4 e5 12.Be3 Be6 13.f4 exf4 14.Bxf4 Rc8 15.Bf3 
Nd7 16.Bxd6 Qb6 17.O-O-O Bxd6 18.Qxd6 Qe3+ 19.Kb1 Rxc3 20.bxc3 Qxf3 21.Qc7
Qf6 22.Rd6 O-O 23.Rxd7 Bxd7 24.Qxd7 Qb6+ 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Miscevic, Miodrag"]
[Black "Buljovcic, Ivan"]
[Result "1/2-1/2"]
[BlackElo "2435"]
[ECO "B97"]
[EventDate "1973.09.16"]
[PlyCount "65"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Qa3 10.Bxf6 gxf6 11.Be2 Qb4 12.Qe3 Nd7 13.Rb1 Be7 14.O-O Qb6 
15.Nd4 Qc5 16.Kh1 b5 17.Qd2 Nb6 18.Nb3 Nc4 19.Qe1 Qc7 20.f5 h5 21.Qg3 h4 
22.Qg7 Rf8 23.Rf3 Ne5 24.Re3 b4 25.Nd1 exf5 26.exf5 Bxf5 27.Nd4 Bd7 28.
Rxb4 h3 29.Nf2 Qa5 30.a3 hxg2+ 31.Qxg2 Rc8 32.Bg4 Bxg4 33.Nxg4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Ivkovic, Dusan"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[BlackElo "2520"]
[ECO "B42"]
[EventDate "1973.09.16"]
[PlyCount "94"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Re1 d6 8.c4 Nc6
9.Nxc6 bxc6 10.Nc3 Nd7 11.b3 Be7 12.Bb2 Bf6 13.Na4 Bxb2 14.Nxb2 c5 15.Re3 
Ne5 16.f4 Nc6 17.Na4 e5 18.Nc3 exf4 19.Nd5 Qd8 20.Nxf4 Ne5 21.Be2 Bb7 22.
Nd5 O-O 23.Rg3 Re8 24.Qd2 Bxd5 25.exd5 g6 26.Rf1 Kh8 27.Qh6 Ra7 28.h4 f5 
29.Qf4 Qf6 30.Bd1 Nf7 31.h5 Rae7 32.Qd2 g5 33.Rgf3 Nh6 34.a3 Re4 35.R3f2 
f4 36.Bc2 Rd4 37.Re1 Re5 38.Qa5 Nf7 39.Rfe2 f3 40.gxf3 Qxf3 41.Rg2 Rg4 42.
Rxg4 Qxg4+ 43.Kf2 Qh4+ 44.Kf1 Qh1+ 45.Kf2 Qh2+ 46.Kf1 Rxe1+ 47.Qxe1 Qxc2 
0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Parma, Bruno"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2530"]
[ECO "C94"]
[EventDate "1973.09.16"]
[PlyCount "34"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.Re1 d6 8.c3 O-O 
9.h3 Nb8 10.a4 Bb7 11.d3 Nbd7 12.axb5 axb5 13.Rxa8 Qxa8 14.Na3 Qa5 15.Bg5 
Nc5 16.Bc2 Ne6 17.Bd2 c5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Uhlmann, Wolfgang"]
[Black "Kirov, Nino"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2420"]
[ECO "B39"]
[EventDate "1973.09.16"]
[PlyCount "66"]
[Source "Perpetual Check"]

1.c4 g6 2.e4 c5 3.Nf3 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Nc3 Bg7 7.Be3 Ng4 8.Qxg4 
Nxd4 9.Qd1 Ne6 10.Qd2 Qa5 11.Rc1 b6 12.Be2 Bb7 13.f3 Be5 14.O-O g5 15.Rfd1
d6 16.g3 h5 17.a3 h4 18.b4 Qxa3 19.Nb5 Qb2 20.Rc2 Qb3 21.c5 bxc5 22.bxc5 
hxg3 23.hxg3 Rh3 24.cxd6 exd6 25.Bf2 Ke7 26.Bf1 Qxf3 27.Bg2 Rxg3 28.Bxg3 
Qxg3 29.Qd3 Qh2+ 30.Kf1 Ba6 31.Rb1 Bd4 32.Rf2 Bxf2 33.Kxf2 Qxg2+ 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Velimirovic, Dragoljub"]
[Black "Tringov, Georgi"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2450"]
[ECO "B89"]
[EventDate "1973.09.16"]
[PlyCount "82"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 Be7 8.Qe2 
O-O 9.O-O-O Qc7 10.Bb3 a6 11.g4 Nxd4 12.Rxd4 b5 13.f4 Nd7 14.f5 Nc5 15.g5 
Rd8 16.f6 Bf8 17.fxg7 Bxg7 18.e5 Bb7 19.Rf1 dxe5 20.Rh4 Rd4 21.Bxd4 exd4 
22.Qh5 dxc3 23.Qxh7+ Kf8 24.Rhf4 Nxb3+ 25.axb3 cxb2+ 26.Kb1 Rd8 27.Rf6 Rd2
28.h4 Bxf6 29.gxf6 Rg2 30.Kxb2 b4 31.Kb1 Bd5 32.Qh8+ Rg8 33.Qh7 Qg3 34.h5 
Ke8 35.Rd1 Qg4 36.Rd4 Qg1+ 37.Ka2 Rg4 38.Rd3 Rg2 39.Rh3 Qf2 40.h6 Qxf6 41.
Qd3 Rg1 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.27"]
[Round "10"]
[White "Zuckerman, Bernard"]
[Black "Forintos, Gyozo"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2460"]
[ECO "A42"]
[EventDate "1973.09.16"]
[PlyCount "19"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.c4 d6 5.Nc3 Bg4 6.d5 e6 7.Qb3 Qe7 8.Nd2 e5 9.
Bd3 Bh6 10.h4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Hecht, Hans-Joachim"]
[Black "Krnic, Zdenko"]
[Result "1-0"]
[WhiteElo "2505"]
[BlackElo "2400"]
[ECO "B30"]
[EventDate "1973.09.16"]
[PlyCount "69"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.Bxc6 bxc6 5.O-O d5 6.d3 Ne7 7.Nc3 Ng6 8.Re1 
Be7 9.Na4 O-O 10.Be3 d4 11.Bc1 e5 12.Nd2 Nf4 13.Nc4 f6 14.Bxf4 exf4 15.f3 
Be6 16.Qd2 g5 17.b3 Rb8 18.Re2 Qd7 19.Rae1 Rfd8 20.e5 f5 21.Nd6 Rb5 22.c4 
dxc3 23.Qxc3 Bxd6 24.exd6 Bf7 25.Qf6 Qxd6 26.Re8+ Bxe8 27.Rxe8+ Rxe8 28.
Qxd6 c4 29.dxc4 Rbe5 30.Nc3 Re1+ 31.Kf2 Rc1 32.Qd2 Rh1 33.h3 h5 34.Ne2 Ra1
35.Nc1 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Masic, Ljubomir"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2455"]
[ECO "A26"]
[EventDate "1973.09.16"]
[PlyCount "37"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Rb1 a5 8.a3 e5 
9.d3 Nh5 10.b4 axb4 11.axb4 f5 12.b5 Ne7 13.Bb2 f4 14.Qb3 Kh8 15.Ra1 Rb8 
16.Rfd1 Bg4 17.d4 Bxf3 18.Bxf3 fxg3 19.hxg3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Forintos, Gyozo"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2510"]
[ECO "A65"]
[EventDate "1973.09.16"]
[PlyCount "115"]
[Source "Perpetual Check"]

1.d4 c5 2.d5 Nf6 3.c4 e6 4.Nc3 exd5 5.cxd5 g6 6.e4 d6 7.Bf4 Nh5 8.Be3 Bg7 
9.Be2 Nf6 10.Nf3 O-O 11.Nd2 Na6 12.O-O Re8 13.Bg5 Nc7 14.a4 b6 15.Re1 Rb8 
16.Rb1 h6 17.Bh4 a6 18.b4 g5 19.Bg3 cxb4 20.Rxb4 Bg4 21.Bxg4 Nxg4 22.Rb3 
Ne5 23.Nf3 Nxf3+ 24.Qxf3 b5 25.axb5 axb5 26.Reb1 Qd7 27.h3 Rb7 28.Qg4 Qxg4
29.hxg4 Bxc3 30.Rxc3 Rxe4 31.Bxd6 Nxd5 32.Rc5 Nf6 33.f3 Re6 34.Be5 b4 35.
Rb3 Kh7 36.Bb2 Rd6 37.Rc8 Kg6 38.Kh2 Re6 39.Rd8 Ne8 40.Rd4 Reb6 41.Rd8 Ng7
42.Bd4 Rc6 43.Bxg7 Kxg7 44.Rd4 Rcb6 45.Kg1 f6 46.Kh2 Kf7 47.Re4 Rb5 48.Kh3
Rb8 49.Kg3 R8b6 50.Kh3 Kg6 51.Rd4 f5 52.gxf5+ Kxf5 53.Re4 h5 54.Kg3 Rb8 
55.Kh3 R8b7 56.Kg3 R5b6 57.Kh3 Rb8 58.Kg3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Tringov, Georgi"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2560"]
[ECO "C09"]
[EventDate "1973.09.16"]
[PlyCount "25"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.exd5 exd5 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Re1 O-O 11.Bg5 Bg4 12.Be2 Bh5 13.Bh4 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Kirov, Nino"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2500"]
[ECO "B07"]
[EventDate "1973.09.16"]
[PlyCount "33"]
[Source "Perpetual Check"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.h3 Bg7 5.Be3 c6 6.a4 O-O 7.Nf3 Nbd7 8.Be2 e5 
9.dxe5 dxe5 10.Nd2 Qe7 11.Nc4 Rd8 12.Qd6 Qxd6 13.Nxd6 Nf8 14.O-O-O Ne8 15.
Nxc8 Rdxc8 16.Bc4 Nc7 17.a5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Radulov, Ivan"]
[Black "Ivkovic, Dusan"]
[Result "1-0"]
[WhiteElo "2530"]
[ECO "B00"]
[EventDate "1973.09.16"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.e4 Nc6 2.Nf3 g6 3.d4 d6 4.Nc3 Bg7 5.Be3 Nf6 6.h3 O-O 7.Qd2 a6 8.Bd3 b5 
9.a4 b4 10.Nd5 Rb8 11.Nxf6+ Bxf6 12.a5 Re8 13.c3 bxc3 14.bxc3 d5 15.e5 Bg7
16.Nh4 Na7 17.f4 f5 18.O-O Nb5 19.Nf3 Bb7 20.Kh2 Qd7 21.Rg1 Qc6 22.g4 fxg4
23.Rxg4 Bc8 24.Rg2 Qxc3 25.Qxc3 Nxc3 26.f5 Rf8 27.Nh4 Ne4 28.fxg6 h6 29.
Bxe4 dxe4 30.Rc1 Rb3 31.Rg3 Ra3 32.Rxc7 Re8 33.Bd2 Ra2 34.Rg2 Ra3 35.Bc3 
Be6 36.Rg3 h5 37.Bb4 Ra4 38.Bxe7 Rxd4 39.Bf6 Rd7 40.Rgc3 e3 41.Rxd7 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.28"]
[Round "11"]
[White "Quinteros, Miguel Angel"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2520"]
[ECO "E87"]
[EventDate "1973.09.16"]
[PlyCount "119"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 Nh5 8.Qd2 f5 9.
Nge2 Nd7 10.O-O-O Ndf6 11.h3 f4 12.Bf2 a6 13.Kb1 Bd7 14.Qe1 Ne8 15.Nc1 Qb8
16.c5 dxc5 17.Bxc5 Nd6 18.Bf2 Qe8 19.Rd2 Rf7 20.Nb3 Bf8 21.Nc5 b6 22.Nxd7 
Qxd7 23.Rc2 Nb7 24.Bc4 Bd6 25.Qe2 b5 26.Bd3 Nc5 27.Rhc1 Nxd3 28.Qxd3 Qd8 
29.a4 b4 30.Nd1 Nf6 31.Rc6 a5 32.Ra6 Rf8 33.Rcc6 Nd7 34.Rxa8 Qxa8 35.Ra6 
Qb7 36.Rxa5 Ra8 37.Rb5 Qa6 38.b3 Kg7 39.Nb2 Rb8 40.Rxb8 Nxb8 41.Qxa6 Nxa6 
42.Kc2 Kf6 43.Kd3 Ke7 44.Kc4 Kd7 45.Kb5 Nb8 46.Nc4 c6+ 47.dxc6+ Nxc6 48.
Nxd6 Kxd6 49.Bc5+ Kc7 50.Kc4 h5 51.Bxb4 g5 52.Bc5 Na5+ 53.Kc3 Kc6 54.Be7 
g4 55.hxg4 hxg4 56.fxg4 Kd7 57.Bc5 Nc6 58.g5 Nd8 59.g6 Ne6 60.Kc4 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Buljovcic, Ivan"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2520"]
[ECO "B06"]
[EventDate "1973.09.16"]
[PlyCount "85"]
[Source "Perpetual Check"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d6 5.a4 a5 6.Be3 Nf6 7.h3 O-O 8.Qd2 Na6 9.
Be2 Nd7 10.Bh6 Nb4 11.Bxg7 Kxg7 12.O-O e5 13.Na2 Nxa2 14.Rxa2 Qb6 15.Ra3 
exd4 16.Qxd4+ Qxd4 17.Nxd4 Nc5 18.Bd3 Re8 19.f3 Be6 20.Rd1 Rad8 21.Raa1 f6
22.Nxe6+ Rxe6 23.Bc4 Re7 24.c3 f5 25.exf5 gxf5 26.b4 axb4 27.cxb4 Ne6 28.
Bxe6 Rxe6 29.Re1 Rde8 30.Rxe6 Rxe6 31.Kf2 f4 32.Rd1 Kf6 33.g3 fxg3+ 34.
Kxg3 d5 35.Rd4 Ke5 36.Rh4 h6 37.Kf2 b6 38.a5 bxa5 39.bxa5 c5 40.Ra4 Ra6 
41.f4+ Kf5 42.Kf3 h5 43.Ra1 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Miscevic, Miodrag"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[BlackElo "2530"]
[ECO "B67"]
[EventDate "1973.09.16"]
[PlyCount "134"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 a6 8.f4 e6
9.O-O-O b5 10.f5 Qb6 11.Bxf6 gxf6 12.Nxc6 Bxc6 13.fxe6 fxe6 14.Qf4 Be7 15.
Be2 O-O-O 16.Bf3 Rhg8 17.Kb1 Qc5 18.Qd2 Kb8 19.Qd4 Kc7 20.Ne2 Qxd4 21.Nxd4
Bd7 22.Rd3 Bf8 23.Rc3+ Kb6 24.Rd1 Bh6 25.Rcd3 Bf4 26.h3 Rg5 27.Bg4 Re8 28.
g3 Be5 29.Nf3 Rxg4 30.Nxe5 dxe5 31.hxg4 Bc6 32.Rd6 Kc7 33.b3 a5 34.Kb2 Re7
35.c4 bxc4 36.bxc4 Bxe4 37.Ra6 Bc6 38.Kc3 Rg7 39.Ra7+ Bb7 40.Rb1 Kc8 41.c5
Rc7 42.Rxa5 Bf3 43.Rb6 Kd7 44.Kb4 e4 45.g5 fxg5 46.c6+ Kd6 47.Rxg5 e3 48.
Kc3 e2 49.Kd2 Ra7 50.c7+ Kxc7 51.Rxe6 Rxa2+ 52.Kc3 Kd7 53.Rge5 Bg4 54.Re7+
Kd6 55.Re3 h5 56.R7e4 Ra1 57.Rd4+ Kc5 58.Rc4+ Kb5 59.Rb4+ Ka5 60.Rbe4 Rg1 
61.Kd2 Kb5 62.Rxg4 hxg4 63.Kxe2 Kc5 64.Kf2 Kd4 65.Ra3 Rb1 66.Ra4+ Ke5 67.
Rxg4 Rb2+ 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Ivkovic, Dusan"]
[Black "Kirov, Nino"]
[Result "1-0"]
[BlackElo "2420"]
[ECO "B84"]
[EventDate "1973.09.16"]
[PlyCount "99"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Be3 
Be7 9.f4 d6 10.Qe1 Bd7 11.Qg3 h5 12.f5 Nxd4 13.Bxd4 e5 14.Bf2 Bc6 15.Qd3 
Rc8 16.a4 O-O 17.a5 Qd7 18.Bh4 Nxe4 19.Bxe7 Nxc3 20.bxc3 Qxe7 21.f6 Qe6 
22.Qg3 g6 23.Bxh5 Be4 24.Bg4 Rxc3 25.Qh4 Rxc2 26.Rf2 Rxf2 27.Bxe6 Rxg2+ 
28.Kf1 fxe6 29.Qxe4 Rg5 30.Qxb7 Rxf6+ 31.Ke2 d5 32.Rf1 Rgf5 33.Rxf5 exf5 
34.Qxd5+ Kg7 35.Qxe5 Kf7 36.Qc7+ Ke6 37.h4 Kd5 38.Kf3 Rc6 39.Qb7 Kc5 40.
Kf4 Kd5 41.Kg5 Kc5 42.Kh6 Kd5 43.Kg7 Kc5 44.Kf7 f4 45.Qb3 Kd4 46.Qf3 Kc5 
47.Qxf4 Kb5 48.Qe5+ Kb4 49.Qe4+ Kxa5 50.Qxc6 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Parma, Bruno"]
[Black "Tringov, Georgi"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2450"]
[ECO "C69"]
[EventDate "1973.09.16"]
[PlyCount "28"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 Bg4 7.dxe5 Qxd1 8.
Rxd1 fxe5 9.Rd3 Bd6 10.Nbd2 Nf6 11.Nc4 Nxe4 12.Nfxe5 Bxe5 13.Nxe5 Be6 14.
f3 Nf6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Uhlmann, Wolfgang"]
[Black "Forintos, Gyozo"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2460"]
[ECO "E90"]
[EventDate "1973.09.16"]
[PlyCount "131"]
[Source "Perpetual Check"]

1.c4 c5 2.Nf3 g6 3.e4 Bg7 4.d4 d6 5.Nc3 Nf6 6.dxc5 Qa5 7.Bd2 dxc5 8.Be2 
O-O 9.O-O Nc6 10.e5 Nd7 11.e6 fxe6 12.Ng5 Nd4 13.Nb5 Qb6 14.a4 Ne5 15.b4 
Rd8 16.bxc5 Nxe2+ 17.Qxe2 Qxc5 18.Rac1 Nf7 19.Be3 Qe5 20.Nxf7 Kxf7 21.Qf3+
Bf6 22.Bxa7 Qf5 23.Qe2 Bd7 24.Bb6 Rg8 25.a5 Bc6 26.Rfe1 h5 27.Nc7 Rad8 28.
Qxe6+ Qxe6 29.Nxe6 Rd2 30.Nc5 Bd4 31.Nb3 Bxb6 32.Nxd2 Bxa5 33.Re2 Rd8 34.
Nf3 Bxf3 35.gxf3 b6 36.Rb1 Rd3 37.Kg2 Rc3 38.Re4 Rc2 39.Rb5 Kf6 40.f4 Kf7 
41.h4 Kf6 42.Kg3 Rc3+ 43.f3 Rc2 44.Rbe5 Bb4 45.Re6+ Kf7 46.Rxb6 Bd6 47.Rb1
Kf6 48.Rbe1 Kf7 49.R1e2 Rc1 50.Rd2 Kf6 51.Kg2 Kf7 52.Rd5 Rc2+ 53.Kf1 Kf6 
54.Ke1 Bb4+ 55.Kd1 Rc3 56.Rb5 Ba3 57.Ke2 Bd6 58.Rd5 Bb4 59.Rd8 Rc2+ 60.Kd1
Rc3 61.Rf8+ Kg7 62.Rc8 Kf6 63.Ke2 Bd6 64.Re3 Rc1 65.Kd2 Rb1 66.c5 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Velimirovic, Dragoljub"]
[Black "Masic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2360"]
[ECO "B85"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.O-O Nf6 8.Kh1 
Be7 9.f4 d6 10.Be3 O-O 11.a4 d5 12.e5 Ne4 13.Nxe4 dxe4 14.c3 b6 15.Nxc6 
Qxc6 16.Qb3 Bc5 17.Bxc5 Qxc5 18.Rad1 Rb8 19.Rd4 Bb7 20.Rfd1 g5 21.fxg5 
Qxe5 22.Rb4 Bd5 23.c4 Bc6 24.Qe3 Qc5 25.Qxc5 bxc5 26.Rxb8 Rxb8 27.Kg1 Rxb2
28.Kf2 Bxa4 29.Rd8+ Kg7 30.Ke3 Bc6 31.Rc8 Rb6 32.Bh5 e5 33.Rc7 Rb3+ 34.Ke2
Rb2+ 35.Kf1 Be8 36.Rxc5 Rb1+ 37.Kf2 Rb2+ 38.Kg3 e3 39.Rxe5 Bc6 40.Bf3 Bxf3
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.09.30"]
[Round "12"]
[White "Zuckerman, Bernard"]
[Black "Hecht, Hans-Joachim"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2505"]
[ECO "B05"]
[EventDate "1973.09.16"]
[PlyCount "42"]
[Source "Perpetual Check"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.h3 Bh5 8.c4 Nb6 
9.Nc3 O-O 10.Be3 N8d7 11.exd6 cxd6 12.b3 Bg6 13.a4 a5 14.Rc1 d5 15.c5 Nc8 
16.Nb5 Na7 17.Bf4 Nc6 18.Qd2 Be4 19.Ng5 Bg6 20.Nf3 Be4 21.Ng5 Bg6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Krnic, Zdenko"]
[Black "Zuckerman, Bernard"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2455"]
[ECO "C25"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.e4 e5 2.f4 exf4 3.Nc3 Nc6 4.d4 Qh4+ 5.Ke2 d5 6.Nf3 Bg4 7.exd5 O-O-O 8.
Bxf4 Re8+ 9.Kd2 Qf2+ 10.Kc1 Nxd4 11.Bg3 Qe3+ 12.Qd2 Qxd2+ 13.Nxd2 Nf5 14.
Bf2 Nd6 15.Bd3 a6 16.b4 Bf5 17.Bxf5+ Nxf5 18.Rb1 Nf6 19.Rd1 Bd6 20.Nc4 
Bxh2 21.b5 Bf4+ 22.Kb2 axb5 23.Nxb5 Ne4 24.Bg1 Ned6 25.Na7+ Kd7 26.Kc3 Re4
27.Na5 b6 28.N5c6 Rhe8 29.g4 Ne3 30.Bxe3 Bxe3 31.Rb4 Rxb4 32.Kxb4 Bc5+ 33.
Kb3 b5 34.Rf1 f6 35.g5 fxg5 36.Rh1 h6 37.Kc3 Re3+ 38.Kd2 Bxa7 39.Nxa7 Re5 
40.Kc3 Rxd5 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Hecht, Hans-Joachim"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2510"]
[ECO "B27"]
[EventDate "1973.09.16"]
[PlyCount "84"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 g6 3.c4 Bg7 4.d4 Na6 5.Nc3 d6 6.d5 Nf6 7.Bd3 Nc7 8.O-O O-O 
9.h3 a6 10.a4 e5 11.dxe6 Nxe6 12.Rb1 Bd7 13.Be3 Bc6 14.Nd5 Re8 15.Re1 Nd7 
16.b3 Rb8 17.Qd2 Ne5 18.Nxe5 Bxe5 19.f4 Bd4 20.Kh2 a5 21.Qf2 Bxe3 22.Rxe3 
Nd4 23.h4 Kh8 24.e5 dxe5 25.fxe5 f5 26.exf6 Qd6+ 27.Kg1 Bxd5 28.Rxe8+ Rxe8
29.cxd5 Rf8 30.Rf1 Qxd5 31.Bc4 Qe5 32.f7 Nf5 33.Rd1 Kg7 34.Re1 Qd4 35.
Qxd4+ cxd4 36.Re5 Ne3 37.Rxa5 Nxc4 38.bxc4 Rd8 39.Kf2 Kxf7 40.Rb5 Rd7 41.
Ke2 d3+ 42.Kd2 Ke6 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Masic, Ljubomir"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2560"]
[ECO "B08"]
[EventDate "1973.09.16"]
[PlyCount "33"]
[Source "Perpetual Check"]

1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Nc3 Nf6 5.Be2 O-O 6.O-O c6 7.a4 a5 8.h3 Na6 9.
Be3 Nb4 10.Qd2 Nd7 11.Bc4 d5 12.Bb3 Nb6 13.exd5 cxd5 14.Bh6 Bf5 15.Bxg7 
Kxg7 16.Nd1 Qd6 17.Ne3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Forintos, Gyozo"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2500"]
[ECO "D40"]
[EventDate "1973.09.16"]
[PlyCount "36"]
[Source "Perpetual Check"]

1.Nf3 c5 2.c4 Nc6 3.Nc3 Nf6 4.e3 e6 5.d4 d5 6.a3 a6 7.dxc5 Bxc5 8.b4 Ba7 
9.Bb2 O-O 10.cxd5 exd5 11.b5 axb5 12.Nxb5 Bb6 13.Bd3 Bg4 14.O-O d4 15.
Nbxd4 Nxd4 16.Bxd4 Bxd4 17.exd4 Qd6 18.h3 Bh5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Tringov, Georgi"]
[Black "Ivkovic, Dusan"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[ECO "B01"]
[EventDate "1973.09.16"]
[PlyCount "51"]
[Source "Perpetual Check"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Bf5 5.Qf3 c6 6.Bc4 Nf6 7.Bb3 e6 8.Bd2 
Bb4 9.Nge2 O-O 10.O-O-O Bg4 11.Qf4 Bxe2 12.Nxe2 Bxd2+ 13.Qxd2 Qxd2+ 14.
Kxd2 Nbd7 15.f3 Nb6 16.c3 Rfd8 17.Kc1 Nbd5 18.Rd3 a5 19.a3 Rd7 20.Rhd1 
Rad8 21.c4 Ne7 22.Kc2 h5 23.Ng3 Kf8 24.Ne4 Nf5 25.Nxf6 gxf6 26.Kc3 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Kirov, Nino"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2420"]
[ECO "E68"]
[EventDate "1973.09.16"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.d4 Nbd7 7.Nc3 e5 8.e4 exd4
9.Nxd4 a5 10.h3 c6 11.Be3 Re8 12.Qc2 Nc5 13.Rad1 Qe7 14.Rfe1 Be6 15.Bf4 
Rad8 16.Na4 Nh5 17.Nxe6 Nxe6 18.Be3 c5 19.Qd2 Bd4 20.Nc3 Bxe3 21.Rxe3 Nc7 
22.Rd3 Ng7 23.Rxd6 Nge6 24.Rxd8 Rxd8 25.Nd5 Nxd5 26.cxd5 Qc7 27.d6 Qb6 28.
e5 Nd4 29.Kh2 Qb5 30.Bd5 b6 31.Qg5 Qe8 32.Qf6 Ne6 33.f4 Qd7 34.f5 gxf5 35.
Rf1 Ng7 36.Bxf7+ Kh8 37.Be6 Qe8 38.Rxf5 Rb8 39.Rg5 Qf8 40.Bf7 Re8 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.01"]
[Round "13"]
[White "Radulov, Ivan"]
[Black "Buljovcic, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2435"]
[ECO "B51"]
[EventDate "1973.09.16"]
[PlyCount "58"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 cxd4 6.Qxd4 e6 7.Bg5 Be7 8.
O-O-O O-O 9.Bxd7 Bxd7 10.e5 dxe5 11.Nxe5 Bc6 12.Nxc6 bxc6 13.Qxd8 Rfxd8 
14.f3 Kf8 15.Rhe1 Rxd1+ 16.Rxd1 Rd8 17.Rxd8+ Bxd8 18.Ne4 Ke7 19.Nxf6 gxf6 
20.Be3 a6 21.Kd2 f5 22.Kd3 e5 23.b4 f4 24.Ba7 Ke6 25.a4 f5 26.Kc4 Be7 27.
Bc5 Bd8 28.Kd3 h5 29.c4 Be7 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Quinteros, Miguel Angel"]
[Black "Radulov, Ivan"]
[Result "0-1"]
[WhiteElo "2520"]
[BlackElo "2530"]
[ECO "B10"]
[EventDate "1973.09.16"]
[PlyCount "124"]
[Source "Perpetual Check"]

1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Qe2 Nxe4 7.Qxe4 e6 8.
d4 Nf6 9.Qh4 Nd5 10.Qg3 Qd6 11.Bd2 Qxg3 12.hxg3 h6 13.g4 Rg8 14.O-O-O Be7 
15.Be2 Bd7 16.c4 Nf6 17.Ne5 Rf8 18.f4 O-O-O 19.Bf3 Be8 20.Be3 Nd7 21.Nd3 
f6 22.f5 Bf7 23.fxe6 Bxe6 24.d5 cxd5 25.cxd5 Bf7 26.Bxa7 b6 27.Rd2 Bd6 28.
Rc2+ Kb7 29.Rc6 Bg6 30.Rxd6 Bxd3 31.Kd2 Ne5 32.Re6 Nxf3+ 33.gxf3 Rxd5 34.
Re7+ Ka6 35.Rhe1 Bb5+ 36.Ke3 Rd3+ 37.Kf2 f5 38.gxf5 Rxf5 39.Bb8 Rdxf3+ 40.
Kg1 Rg5+ 41.Kh2 Rf2+ 42.Kh3 Bf1+ 43.Kh4 Rg1 44.Rc1 Rxb2 45.Ra7+ Kb5 46.Bd6
Rh1+ 47.Kg4 Rg2+ 48.Kf5 Rh5+ 49.Ke4 Rh4+ 50.Kf5 Rh5+ 51.Ke4 Rh4+ 52.Kf5 
Rf2+ 53.Ke5 Re2+ 54.Kf5 Rf2+ 55.Ke5 Rh5+ 56.Ke6 Bc4+ 57.Kd7 Bxa2 58.Rb7 
Rd5 59.Ke7 Re2+ 60.Kd7 Rf5 61.Bc7 Be6+ 62.Kd6 Rd5+ 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Buljovcic, Ivan"]
[Black "Kirov, Nino"]
[Result "1-0"]
[WhiteElo "2435"]
[BlackElo "2420"]
[ECO "B22"]
[EventDate "1973.09.16"]
[PlyCount "73"]
[Source "Perpetual Check"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Bc4 Nc6 7.Qe4 d6 8.exd6 
Nf6 9.Qe2 Bxd6 10.Nf3 O-O 11.Bg5 Qc7 12.Nbd2 Bd7 13.Bd3 Bf4 14.Bxf4 Qxf4 
15.O-O Qc7 16.Rfe1 Rfe8 17.Rad1 Rad8 18.Ne4 Nxe4 19.Qxe4 f5 20.Qc4 Qa5 21.
Bc2 b5 22.Qc5 Qb6 23.Qxb6 axb6 24.Rd6 Kf8 25.Red1 Ke7 26.Bb3 h6 27.h4 Rf8 
28.Kf1 Rf6 29.R6d2 Bc8 30.Rxd8 Nxd8 31.Ne5 g5 32.h5 Ke8 33.Rd6 Nf7 34.Nxf7
Rxf7 35.Rxb6 Ke7 36.Ke1 Bd7 37.c4 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Miscevic, Miodrag"]
[Black "Tringov, Georgi"]
[Result "0-1"]
[BlackElo "2450"]
[ECO "B99"]
[EventDate "1973.09.16"]
[PlyCount "116"]
[Source "Perpetual Check"]

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 h6 11.Qh3 Rg8 12.e5 hxg5 13.exf6 gxf6 14.Nxe6 fxe6 15.
Qxe6 Kf8 16.Nd5 Qd8 17.Qh3 gxf4 18.Qh6+ Ke8 19.Bg6+ Rxg6 20.Qxg6+ Kf8 21.
Nxf4 Ne5 22.Qh6+ Ke8 23.Qh8+ Kd7 24.Qxd8+ Kxd8 25.Nd5 Be6 26.Nxe7 Kxe7 27.
Rd4 Rh8 28.h3 Bd7 29.Rhd1 Bc6 30.R1d2 f5 31.Rf4 Be4 32.g4 Rxh3 33.gxf5 
Rh1+ 34.Rd1 Rxd1+ 35.Kxd1 Bc6 36.Kd2 Kf6 37.c4 Kg5 38.Rf1 Nxc4+ 39.Kc3 Ne3
40.f6 Nd5+ 41.Kc4 Nxf6 42.Kd4 Kg6 43.Rg1+ Kf7 44.Rf1 Ke7 45.Rg1 Nd7 46.
Rg7+ Kf6 47.Rh7 Nf8 48.Rh6+ Ke7 49.Rh5 Ne6+ 50.Kc4 d5+ 51.Kc3 d4+ 52.Kb4 
Kd6 53.Rf5 Be4 54.Rh5 Nf4 55.Rg5 Nd5+ 56.Kc4 d3 57.Rg1 d2 58.Kd4 Bc2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Ivkovic, Dusan"]
[Black "Forintos, Gyozo"]
[Result "0-1"]
[BlackElo "2460"]
[ECO "B06"]
[EventDate "1973.09.16"]
[PlyCount "83"]
[Source "Perpetual Check"]

1.e4 g6 2.f4 Bg7 3.Nf3 c5 4.Bc4 Nc6 5.O-O Na5 6.Be2 d6 7.c3 Qb6 8.Kh1 Nf6 
9.e5 dxe5 10.fxe5 Nd5 11.d4 cxd4 12.cxd4 O-O 13.Nc3 Be6 14.Na4 Qd8 15.Ng5 
Bc8 16.Nc3 Nxc3 17.bxc3 h6 18.Ne4 Be6 19.Qe1 Bd5 20.Bd3 Rc8 21.Qh4 Bxe4 
22.Bxe4 Rxc3 23.Bxh6 Qxd4 24.Bxg7 Kxg7 25.e6 Re3 26.Qxe7 Rxe4 27.Rxf7+ 
Rxf7 28.Qxf7+ Kh6 29.Rf1 Nc6 30.g3 Re2 31.Qf8+ Qg7 32.Qf4+ g5 33.Qg4 Qe5 
34.Rf6+ Qxf6 35.Qxe2 Nd4 36.Qd3 Nxe6 37.Kg2 g4 38.h4 Qb2+ 39.Kf1 Qa1+ 40.
Ke2 Qxa2+ 41.Ke3 Qg2 42.Qd6 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Parma, Bruno"]
[Black "Masic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2360"]
[ECO "C95"]
[EventDate "1973.09.16"]
[PlyCount "57"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.b4 Bf8 14.Bb2 Nb6 15.a3 g6 
16.dxe5 dxe5 17.c4 bxc4 18.Nxe5 Bg7 19.Ndxc4 Nxc4 20.Nxc4 Bxe4 21.Ba4 Re6 
22.Qxd8+ Rxd8 23.Rad1 Rd5 24.Bb3 Re8 25.Nd2 Bc2 26.Bxf6 Rxe1+ 27.Rxe1 Rxd2
28.Re8+ Bf8 29.Bxc2 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Uhlmann, Wolfgang"]
[Black "Hecht, Hans-Joachim"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2505"]
[ECO "A15"]
[EventDate "1973.09.16"]
[PlyCount "60"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 b6 3.Nc3 Bb7 4.d3 g6 5.e4 Bg7 6.g3 O-O 7.Bg2 c5 8.O-O Nc6 
9.Ne1 d6 10.f4 Nd7 11.Nf3 Nd4 12.Nxd4 cxd4 13.Ne2 f5 14.exf5 Bxg2 15.Kxg2 
gxf5 16.Ng1 e5 17.Nf3 Qf6 18.b3 e4 19.Ne1 d5 20.Ba3 Rfe8 21.cxd5 Qf7 22.d6
Qd5 23.Rc1 Rac8 24.Rc7 Rxc7 25.dxc7 Rc8 26.g4 Rxc7 27.gxf5 Nf6 28.dxe4 
Nxe4 29.Qf3 Qxf5 30.Kh1 Nd2 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.02"]
[Round "14"]
[White "Velimirovic, Dragoljub"]
[Black "Krnic, Zdenko"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2400"]
[ECO "B46"]
[EventDate "1973.09.16"]
[PlyCount "72"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.Be2 Nge7 7.Be3 Nxd4 8.
Qxd4 b5 9.O-O-O Nc6 10.Qd2 Bb7 11.Bf4 Rc8 12.h4 f6 13.Rh3 Ne5 14.Rg3 Qe7 
15.a3 Bc6 16.Kb1 b4 17.Nd5 exd5 18.exd5 Bb5 19.d6 Qe6 20.Bxe5 Bxe2 21.Qxe2
fxe5 22.axb4 Rc6 23.Qe4 g6 24.h5 Qf5 25.Qe2 Bxd6 26.Rf3 Qe6 27.b5 axb5 28.
Qxb5 Ke7 29.Re3 Rb8 30.Qe2 Rb4 31.g3 Qc4 32.Rdd3 Kd8 33.hxg6 hxg6 34.Qd2 
Ra6 35.b3 Qc5 36.Rc3 Qa5 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Zuckerman, Bernard"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2510"]
[ECO "B78"]
[EventDate "1973.09.16"]
[PlyCount "86"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.Bc4 Bd7 10.O-O-O Rc8 11.Bb3 Ne5 12.h4 Nc4 13.Bxc4 Rxc4 14.h5 Nxh5 
15.g4 Nf6 16.Bh6 Nxe4 17.Qe3 Rxc3 18.bxc3 Nf6 19.Bxg7 Kxg7 20.Ne2 Rg8 21.
Ng3 Kh8 22.Qd4 Qb6 23.g5 Qxd4 24.Rxd4 Ne8 25.Re4 e6 26.Reh4 h5 27.gxh6 Bc6
28.Rf1 g5 29.Rh2 f5 30.Ne2 Kh7 31.f4 g4 32.Ng3 Nf6 33.c4 Ne4 34.Rg1 Nxg3 
35.Rxg3 e5 36.Rf2 Be4 37.Kd2 exf4 38.Rxf4 Kxh6 39.Ke3 Re8 40.Kd4 Kg5 41.
Rf2 f4 42.Ra3 g3 43.Rf1 Bc6 0-1

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Krnic, Zdenko"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2560"]
[ECO "C09"]
[EventDate "1973.09.16"]
[PlyCount "37"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.exd5 exd5 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Nbd4 O-O 11.b3 Bg4 12.Bb2 Qb6 13.a4 Be5 14.Nxc6 Nxc6 
15.Bxe5 Nxe5 16.Be2 Bxf3 17.Bxf3 Nxf3+ 18.Qxf3 Rac8 19.Rad1 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Hecht, Hans-Joachim"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2500"]
[ECO "B07"]
[EventDate "1973.09.16"]
[PlyCount "68"]
[Source "Perpetual Check"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5 Bg7 5.Qd2 h6 6.Be3 Ng4 7.Bf4 Nc6 8.h3 e5 
9.dxe5 Ngxe5 10.O-O-O Be6 11.Nd5 Qd7 12.Be3 g5 13.g3 f5 14.f4 Nf7 15.exf5 
Bxf5 16.Bb5 a6 17.Bd3 Ne7 18.Nxe7 Bxd3 19.Qxd3 Qxe7 20.Nf3 gxf4 21.Bxf4 
O-O-O 22.Qf5+ Qd7 23.Nh4 Be5 24.Rhf1 Bxf4+ 25.Rxf4 Ne5 26.g4 Qxf5 27.Rxf5 
Rdg8 28.b3 Rg5 29.Rdf1 Kd7 30.Kd2 Re8 31.Rxg5 hxg5 32.Nf3 Nf7 33.Nd4 Ne5 
34.Nf3 Nf7 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Masic, Ljubomir"]
[Black "Ivkovic, Dusan"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[ECO "A07"]
[EventDate "1973.09.16"]
[PlyCount "15"]
[Source "Perpetual Check"]

1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.O-O e5 5.d3 Ne7 6.e4 dxe4 7.dxe4 Qxd1 8.Rxd1 
1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Forintos, Gyozo"]
[Black "Miscevic, Miodrag"]
[Result "1-0"]
[WhiteElo "2460"]
[ECO "E74"]
[EventDate "1973.09.16"]
[PlyCount "95"]
[Source "Perpetual Check"]

1.c4 g6 2.e4 d6 3.d4 Bg7 4.Nc3 Nf6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 e5 9.
dxe6 Bxe6 10.Bxd6 Re8 11.Nf3 Qa5 12.Nd2 Nfd7 13.O-O Nc6 14.Nb3 Qb6 15.Na4 
Qb4 16.Naxc5 Nxc5 17.Bxc5 Qa4 18.Nd4 Qa5 19.Nb3 Qa4 20.Qc2 b6 21.Be3 Nb4 
22.Qb1 Rac8 23.Nd4 Bxd4 24.Bxd4 Qc2 25.Qc1 Kh7 26.Qxc2 Nxc2 27.Rad1 Bxc4 
28.Bxc4 Rxc4 29.Bc3 Rcxe4 30.Rd7 Kg8 31.Rxa7 Nd4 32.f3 Ne2+ 33.Kf2 R4e6 
34.Bd2 Nd4 35.Re1 Rxe1 36.Bxe1 Re2+ 37.Kf1 Re8 38.Rb7 Nc2 39.Bd2 Re6 40.
Bxh6 Kh7 41.Bd2 Kg8 42.Kf2 f5 43.Rd7 Kf8 44.h4 Ke8 45.Rc7 Nd4 46.Be3 Nb5 
47.Rb7 Nd6 48.Rxb6 1-0

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Tringov, Georgi"]
[Black "Buljovcic, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2435"]
[ECO "B51"]
[EventDate "1973.09.16"]
[PlyCount "36"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.c3 Nf6 5.Qe2 a6 6.Ba4 e6 7.Bc2 b6 8.d4 Bb7 
9.O-O Be7 10.Nbd2 Qc7 11.Bd3 Nf8 12.Re1 Ng6 13.Nf1 O-O 14.Ng3 Rfe8 15.a4 
Bf8 16.Bg5 Nd7 17.Qd2 f6 18.Be3 d5 1/2-1/2

[Event "5th Boris Kostic mem"]
[Site "Vrsac"]
[Date "1973.10.04"]
[Round "15"]
[White "Kirov, Nino"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2520"]
[ECO "B99"]
[EventDate "1973.09.16"]
[PlyCount "112"]
[Source "Perpetual Check"]

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 h6 10.Bh4 Nbd7 11.Bd3 b5 12.e5 Bb7 13.Nxe6 fxe6 14.Bg6+ Kd8 15.
exf6 gxf6 16.Qe2 b4 17.Nb1 Rg8 18.f5 e5 19.Nd2 Rc8 20.Nf3 Rf8 21.Kb1 Qc4 
22.Qxc4 Rxc4 23.Bf2 Rg4 24.Rhg1 d5 25.Bh5 Rc4 26.Nd2 Rf4 27.Be3 Rh4 28.Bf3
Rxh2 29.Nf1 Rh4 30.g3 Rc4 31.Bxd5 Bxd5 32.Rxd5 Bc5 33.Rh1 Bxe3 34.Nxe3 Re4
35.Rd3 Kc8 36.a3 Nc5 37.Rd5 Na4 38.Ra5 bxa3 39.Nd5 Kb7 40.Rxh6 axb2 41.Rh1
Rd8 42.Nxf6 Rb4 43.Rxa4 Rxa4 44.Kxb2 Kc6 45.Rh7 Rf8 46.Rh6 Kb5 47.g4 e4 
48.g5 e3 49.Rh3 Rf4 50.Rxe3 Rxf5 51.Ne4 Kc6 52.Rc3+ Kb6 53.Rg3 Rf3 54.Rg2 
Rg8 55.Rd2 Rg6 56.Rd5 Re6 0-1

