[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Calvo Minguez, Ricardo"]
[Black "Panno, Oscar"]
[WhiteElo "2470"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "B81"]
[EventDate "1973.04.02"]
[PlyCount "89"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 a6
9.Qd2 b5 10.Bg2 Bb7 11.O-O-O Nbd7 12.f4 Qc7 13.e5 dxe5 14.fxe5 b4 15.Nxe6 
fxe6 16.exf6 gxf6 17.Ne4 Bxe4 18.Bxe4 O-O-O 19.Qe2 Nc5 20.Rxd8+ Qxd8 21.
Be3 Qa5 22.Bxc5 Bxc5 23.Kb1 Qb6 24.h4 a5 25.h5 Bd4 26.Rd1 Rd8 27.h6 f5 28.
Bg2 Bf6 29.Qc4+ Kb8 30.Rxd8+ Bxd8 31.h7 Bf6 32.Kc1 Qe3+ 33.Kd1 Qd4+ 34.
Qxd4 Bxd4 35.c3 bxc3 36.bxc3 Bxc3 37.Kc2 Bf6 38.Bh3 Kc7 39.Kd3 Kc6 40.a4 
Kc5 41.Bg2 e5 42.Bh3 e4+ 43.Ke3 Bd4+ 44.Kf4 e3 45.Bf1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Huguet, Bernard"]
[WhiteElo "2495"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "B81"]
[EventDate "1973.04.02"]
[PlyCount "69"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.g5 hxg5 8.Bxg5 a6
9.Bg2 Bd7 10.Qe2 Nc6 11.O-O-O Be7 12.h4 g6 13.Nxc6 Bxc6 14.Qe3 Qc7 15.Bh3 
O-O-O 16.Qd4 Nh5 17.Nd5 Bxg5+ 18.hxg5 Qa5 19.Ne7+ Kc7 20.Nxc6 Kxc6 21.Bf1 
Qxg5+ 22.Kb1 Qc5 23.Qa4+ Kb6 24.Rh3 Ka7 25.Rc3 Qb6 26.Rb3 Qc7 27.Rd4 Nf6 
28.Rdb4 Rh1 29.Rxb7+ Qxb7 30.Rxb7+ Kxb7 31.Qxa6+ Kc7 32.a4 Nxe4 33.Ka2 Nc5
34.Qa7+ Nb7 35.Bg2 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Hort, Vlastimil"]
[Black "Petrosian, Tigran"]
[WhiteElo "2590"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "E19"]
[EventDate "1973.04.02"]
[PlyCount "26"]

1.c4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 e6 5.d4 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 Be4 10.b3 f5 11.Bb2 Bf6 12.Ne1 Bxg2 13.Nxg2 c5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Hug, Werner"]
[Black "Ribli, Zoltan"]
[WhiteElo "2440"]
[BlackElo "2525"]
[Result "0-1"]
[ECO "B26"]
[EventDate "1973.04.02"]
[PlyCount "104"]

1.g3 g6 2.Bg2 Bg7 3.e4 c5 4.d3 Nc6 5.Ne2 e6 6.O-O Nge7 7.Nbc3 O-O 8.Be3 
Nd4 9.Qd2 d6 10.Nf4 Rb8 11.Rae1 b5 12.Nd1 e5 13.Ne2 Be6 14.f4 a5 15.Nc1 
Qb6 16.fxe5 Bxe5 17.Bh6 Rfe8 18.c3 Ndc6 19.Ne3 Bh8 20.Kh1 Ne5 21.Rf2 f6 
22.Bf4 Nf7 23.g4 b4 24.h3 bxc3 25.bxc3 a4 26.Nd5 Nxd5 27.exd5 Bd7 28.Ref1 
a3 29.Bf3 Ne5 30.Bd1 Qa6 31.Bb3 c4 32.dxc4 Nxc4 33.Bxc4 Qxc4 34.Bxd6 Rb5 
35.Qd4 Qxd4 36.cxd4 Rxd5 37.Bxa3 Rxd4 38.Bb2 Rd6 39.Kh2 Bb5 40.Rg1 Bg7 41.
Rc2 Bh6 42.Kg3 Re3+ 43.Kf2 Rxh3 44.Rc8+ Kf7 45.Kg2 Re3 46.Rc7+ Ke6 47.Nb3 
Re2+ 48.Kf3 Rd3+ 49.Kxe2 Rxb3+ 50.Kf2 Rxb2+ 51.Kg3 Be3 52.Rd1 g5 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Kavalek, Lubomir"]
[Black "Darga, Klaus"]
[WhiteElo "2565"]
[BlackElo "2500"]
[Result "1-0"]
[ECO "B42"]
[EventDate "1973.04.02"]
[PlyCount "97"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.O-O Nf6 7.Qe2 d6 8.f4 
Nbd7 9.Nf3 e5 10.a4 g6 11.Nc3 Bg7 12.Qf2 b6 13.Qh4 h6 14.fxe5 dxe5 15.Nd2 
g5 16.Qf2 Nc5 17.Nc4 Be6 18.Be3 Ng4 19.Qf3 Nxd3 20.cxd3 Bxc4 21.dxc4 Nxe3 
22.Qxe3 O-O 23.Qe2 Rac8 24.b3 f5 25.Nd5 Qc5+ 26.Qf2 fxe4 27.Qxc5 Rxc5 28.
Nxb6 e3 29.Rxf8+ Bxf8 30.Nd7 Rc6 31.Nxf8 Kxf8 32.Re1 Ke7 33.Rxe3 Ke6 34.
Kf2 g4 35.Rc3 a5 36.Ke3 Rc8 37.Rd3 Rb8 38.Ke4 Rb7 39.g3 Rb8 40.Rd5 Rxb3 
41.Rxe5+ Kf6 42.Rxa5 Rb2 43.Kf4 Rxh2 44.Kxg4 Kg6 45.Ra6+ Kf7 46.a5 Ke7 47.
Ra7+ Kf6 48.a6 Ra2 49.Ra8 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Ree, Hans"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2440"]
[BlackElo "2565"]
[Result "0-1"]
[ECO "E38"]
[EventDate "1973.04.02"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Qa5 6.Bd2 Qxc5 7.e3 Nc6 8.Nf3 
e5 9.a3 Bxc3 10.Bxc3 a5 11.Be2 a4 12.O-O O-O 13.Rfd1 d6 14.b4 axb3 15.Qxb3
Bg4 16.h3 Bh5 17.g4 Bg6 18.Qb5 Qa7 19.Be1 Rfd8 20.Nh4 Bc2 21.Rdc1 Ba4 22.
Qb2 Ne4 23.Rab1 Rd7 24.Bf3 Nc5 25.Qc3 Qb8 26.Nf5 Qd8 27.Kh2 Ne7 28.Nxe7+ 
Qxe7 29.Bd5 Rc7 30.f3 Bc6 31.Bg3 Rac8 32.Qd2 Qf6 33.Rf1 Qg6 34.Rbd1 h6 35.
Rf2 Kh8 36.Qc2 Qxc2 37.Rxc2 Ba4 38.Rcd2 Bxd1 39.Rxd1 Na4 40.Rc1 Nb6 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Saidy, Anthony Fred"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2430"]
[BlackElo "2550"]
[Result "0-1"]
[ECO "E63"]
[EventDate "1973.04.02"]
[PlyCount "132"]

1.c4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Nf6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6 8.h3 Rb8 
9.Be3 b5 10.Nd2 Bd7 11.Rc1 Na5 12.cxb5 axb5 13.b4 Nc4 14.Nxc4 bxc4 15.b5 
d5 16.Bg5 c6 17.Qd2 cxb5 18.Bxf6 exf6 19.Nxd5 Bxh3 20.Bxh3 Qxd5 21.Bg2 Qg5
22.Qxg5 fxg5 23.e3 Rfc8 24.Bd5 Rd8 25.Bg2 Rdc8 26.Bd5 Bf8 27.Rc2 Kg7 28.
Rb1 c3 29.Rb3 b4 30.Rb1 g4 31.Kf1 f5 32.Ke2 Rb5 33.Be6 Rcb8 34.Kd3 R5b6 
35.Bc4 h5 36.Rh1 Be7 37.Rcc1 Ra8 38.Rc2 Rd6 39.Bb3 Rdd8 40.Rcc1 Rh8 41.Rc2
Bf6 42.Kc4 Be7 43.Kd3 Ra6 44.Bc4 Ra3 45.Bb3 Rd8 46.Re2 Ra7 47.Be6 Kf6 48.
Bb3 Kg5 49.Rc2 Bf6 50.Kc4 Rc7+ 51.Kd3 Rcd7 52.Ba4 Ra7 53.Bb3 Kh6 54.Be6 
Re7 55.Bb3 Red7 56.Kc4 Rc7+ 57.Kd3 g5 58.Re2 Kg6 59.Ree1 h4 60.d5 hxg3 61.
fxg3 c2 62.Rc1 Rc3+ 63.Kd2 Re8 64.Rxc2 Rexe3 65.Rxc3 Rxc3 66.Re1 Rxb3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.02"]
[Round "1"]
[White "Stein, Leonid"]
[Black "Andersson, Ulf"]
[WhiteElo "2605"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "B15"]
[EventDate "1973.04.02"]
[PlyCount "90"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Qe7+ 7.Qe2 Bg4 8.
Qxe7+ Bxe7 9.Ne2 Nd7 10.Nf4 Nb6 11.Be2 Bxe2 12.Kxe2 O-O-O 13.Rd1 Rhe8 14.
Kf1 c5 15.Ne2 f5 16.Bf4 Nd5 17.dxc5 Bxc5 18.Bg5 f6 19.Bd2 Re6 20.Nf4 Nxf4 
21.Bxf4 Re4 22.Rxd8+ Kxd8 23.Rd1+ Ke7 24.Bd2 Bd6 25.b3 b5 26.h3 a6 27.f3 
Re6 28.Rc1 Kd7 29.Rd1 Ke7 30.Re1 Be5 31.f4 Bd6 32.Rxe6+ Kxe6 33.Ke2 Kd5 
34.Kd3 Bc7 35.c4+ bxc4+ 36.bxc4+ Kc5 37.a3 Kc6 38.g3 Bb6 39.Ke2 Bd4 40.Bb4
Kd7 41.g4 fxg4 42.hxg4 g6 43.Kd3 Bb2 44.Ke4 Kc6 45.f5 Ba1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Andersson, Ulf"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2555"]
[BlackElo "2565"]
[Result "1-0"]
[ECO "B40"]
[EventDate "1973.04.02"]
[PlyCount "69"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.g3 b5 5.Bg2 Bb7 6.d3 d6 7.O-O Nf6 8.e5 dxe5 9.
Nxe5 Bxg2 10.Kxg2 Nbd7 11.Bf4 Nxe5 12.Bxe5 Be7 13.Qf3 O-O 14.Rfe1 Nd7 15.
Bf4 Bf6 16.Rab1 Bxc3 17.bxc3 Nb6 18.Re4 Na4 19.Bd2 c4 20.Rd4 Qc7 21.dxc4 
Rad8 22.Rb4 e5 23.Rxd8 Rxd8 24.cxb5 axb5 25.Be1 Qd7 26.c4 bxc4 27.Rxc4 Nb6
28.Rc5 Qd4 29.Rc7 f6 30.Ba5 Nd5 31.c3 Qa4 32.Rc5 e4 33.Qf5 Qxa2 34.Qxe4 f5
35.Qe5 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Darga, Klaus"]
[Black "Hort, Vlastimil"]
[WhiteElo "2500"]
[BlackElo "2590"]
[Result "1/2-1/2"]
[ECO "E17"]
[EventDate "1973.04.02"]
[PlyCount "43"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.b3 d5 8.cxd5 Nxd5
9.Bb2 O-O 10.d4 Nd7 11.Rc1 Nxc3 12.Bxc3 Rc8 13.dxc5 Nxc5 14.Bb2 Bd5 15.Ne5
Bxg2 16.Kxg2 Qc7 17.f3 Bf6 18.Nc4 Bxb2 19.Nxb2 Qb7 20.b4 Rfd8 21.Qe1 Nd7 
22.Qd2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Hug, Werner"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2440"]
[BlackElo "2470"]
[Result "1/2-1/2"]
[ECO "B23"]
[EventDate "1973.04.02"]
[PlyCount "82"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.Nxd4 cxd4 7.Ne2 e6 8.c3 
dxc3 9.bxc3 a6 10.Bd3 Ne7 11.O-O d6 12.a4 O-O 13.Rb1 Nc6 14.Ba3 Re8 15.Qb3
d5 16.e5 Na5 17.Qb6 Bf8 18.Bxf8 Qxb6+ 19.Rxb6 Kxf8 20.Nd4 Bd7 21.Nb3 Nxb3 
22.Rxb3 Bc6 23.a5 Ke7 24.Rfb1 Red8 25.Rb4 Rd7 26.Rd4 Rc7 27.Kf2 h5 28.g3 
Rh8 29.h4 Rd8 30.Ke3 Rdd7 31.Rdb4 Rc8 32.Kd4 Rcc7 33.Be2 Rc8 34.Rh1 Rcc7 
35.Rb6 Rd8 36.Rhb1 Rdd7 37.Rg1 Rd8 38.Rb4 Rdd7 39.Rb2 Rc8 40.Rbb1 Rdd8 41.
Rb4 Rd7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Huguet, Bernard"]
[Black "Stein, Leonid"]
[WhiteElo "2235"]
[BlackElo "2605"]
[Result "0-1"]
[ECO "A35"]
[EventDate "1973.04.02"]
[PlyCount "48"]

1.c4 g6 2.Nc3 Bg7 3.d4 c5 4.Nf3 cxd4 5.Nxd4 Nc6 6.Nc2 Bxc3+ 7.bxc3 Nf6 8.
Bh6 Qa5 9.Qd3 Ng4 10.Bd2 d6 11.f4 Nf6 12.Nd4 Bf5 13.Nxf5 gxf5 14.g3 Ne4 
15.Bg2 Nxd2 16.Qxd2 Qc5 17.Qd5 Na5 18.Rb1 Qxd5 19.cxd5 Rc8 20.Kd2 b6 21.
Rhe1 Rc5 22.a4 O-O 23.Rb5 Rc4 24.Rb4 Rfc8 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Ljubojevic, Ljubomir"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2565"]
[BlackElo "2430"]
[Result "1-0"]
[ECO "B11"]
[EventDate "1973.04.02"]
[PlyCount "107"]

1.e4 c6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Bg4 5.h3 Bxf3 6.Qxf3 e6 7.Be2 Nbd7 8.d4 
dxe4 9.Nxe4 Nxe4 10.Qxe4 Nf6 11.Qd3 Qc7 12.O-O Bd6 13.Bg5 Bh2+ 14.Kh1 Bf4 
15.Bxf6 gxf6 16.b4 O-O 17.Qf3 Kg7 18.Bd3 Bh6 19.g3 Qd8 20.c3 f5 21.Qe2 Rc8
22.f4 Kh8 23.Qh5 Qf6 24.g4 Qg6 25.Qh4 Rg8 26.Rae1 Bf8 27.Rg1 Qh6 28.Qxh6 
Bxh6 29.gxf5 Bxf4 30.fxe6 fxe6 31.Rxe6 Rxg1+ 32.Kxg1 Bd2 33.c4 Bxb4 34.Kf2
Rd8 35.Ke3 Rd7 36.Be4 Kg7 37.Re8 Bc3 38.d5 cxd5 39.cxd5 Bf6 40.Kf4 h6 41.
Kf5 Rd8 42.Re6 Bg5 43.Rg6+ Kh8 44.d6 Rf8+ 45.Ke6 Re8+ 46.Kd5 Rg8 47.Rxg5 
hxg5 48.d7 Kg7 49.Ke6 b5 50.Ke7 a5 51.d8=Q Rxd8 52.Kxd8 Kf6 53.Kc7 Ke5 54.
Bc6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Panno, Oscar"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2585"]
[BlackElo "2495"]
[Result "1-0"]
[ECO "D66"]
[EventDate "1973.04.02"]
[PlyCount "71"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Be7 5.Bg5 O-O 6.e3 a6 7.Rc1 Nbd7 8.a4 c6 
9.Bd3 dxc4 10.Bxc4 b5 11.Bd3 bxa4 12.Bxf6 Nxf6 13.Nxa4 Qa5+ 14.Ke2 Bd7 15.
Nc5 Bxc5 16.Rxc5 Qb4 17.Qc2 Rfb8 18.Rb1 a5 19.Ne5 a4 20.Nxd7 Nxd7 21.Rxc6 
g6 22.h3 Nb6 23.Qc5 Nd5 24.Qxb4 Nxb4 25.Rc3 Nxd3 26.Kxd3 a3 27.b3 Kf8 28.
Ra1 Ke7 29.Kc2 Kd6 30.Kb1 e5 31.Ka2 Rb5 32.dxe5+ Rxe5 33.Rd1+ Rd5 34.Rxd5+
Kxd5 35.Rc4 Ra6 36.Ra4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Petrosian, Tigran"]
[Black "Ree, Hans"]
[WhiteElo "2640"]
[BlackElo "2440"]
[Result "1-0"]
[ECO "E06"]
[EventDate "1973.04.02"]
[PlyCount "81"]

1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.O-O Nc6 7.d4 Be7 8.dxc5 
O-O 9.Qc2 Ndb4 10.Qe4 f5 11.Qc4 Qd5 12.Na3 Qxc5 13.Bg5 h6 14.Bxe7 Qxe7 15.
Rfd1 a6 16.Qb3 Bd7 17.Nc4 Be8 18.Nb6 Rd8 19.a3 Nd5 20.Nxd5 exd5 21.e3 Bf7 
22.Nd4 Nxd4 23.Rxd4 Kh7 24.Rad1 Rd7 25.Qd3 Qe5 26.b4 Rfd8 27.h4 h5 28.Rc1 
Kh6 29.Rc5 g6 30.Qc2 Kh7 31.Bf3 Be6 32.Kh2 Rf7 33.Qc3 Re7 34.a4 Bg8 35.Qd3
Red7 36.b5 axb5 37.Rxb5 Bf7 38.Qb1 Qe7 39.Rdb4 d4 40.exd4 f4 41.Rxh5+ 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.03"]
[Round "2"]
[White "Ribli, Zoltan"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2525"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Be3 Ng4 12.Bd4 Ne5 13.Qd1 Rb8 14.Rc1 Be6 15.
Nd5 b5 16.cxb5 Bxd5 17.Bxd5 axb5 18.f4 Nd7 19.Ba7 Rc8 20.Qd2 Nc5 21.b4 Qc7
22.Bxc5 dxc5 23.Rxc5 Qa7 24.Kg2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Calvo Minguez, Ricardo"]
[Black "Ribli, Zoltan"]
[WhiteElo "2470"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "A36"]
[EventDate "1973.04.02"]
[PlyCount "37"]

1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 5.d3 e6 6.e3 Nge7 7.Nge2 d5 8.O-O O-O 
9.b3 d4 10.exd4 Nxd4 11.Nxd4 Bxd4 12.Bb2 Nc6 13.Bxc6 bxc6 14.Qe2 e5 15.Ne4
Bh3 16.Rfe1 f6 17.Bxd4 cxd4 18.f3 Bf5 19.g4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Hug, Werner"]
[WhiteElo "2495"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "A55"]
[EventDate "1973.04.02"]
[PlyCount "70"]

1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e4 e5 5.Nf3 Be7 6.Be2 O-O 7.O-O c6 8.Re1 Re8
9.Bf1 Bf8 10.d5 a5 11.b3 Nc5 12.Rb1 Bd7 13.a3 cxd5 14.cxd5 Qb8 15.a4 g6 
16.Bg5 Be7 17.h3 Qd8 18.Bc1 Bf8 19.Nd2 Bh6 20.Nc4 Bxc1 21.Qxc1 Qc7 22.f4 
exf4 23.Qxf4 Ncxe4 24.Nxe4 Nxe4 25.Rxe4 Rxe4 26.Qxe4 Bf5 27.Qe1 Qc5+ 28.
Kh1 Bxb1 29.Qxb1 Re8 30.Qd3 Re1 31.Qf3 f5 32.g4 fxg4 33.hxg4 Re8 34.Qc3 
Qxd5+ 35.Bg2 Qg5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Gheorghiu, Florin"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2550"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A30"]
[EventDate "1973.04.02"]
[PlyCount "46"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 Na6 
9.Rc1 d6 10.d4 Qd7 11.e3 Rad8 12.Qe2 Qc8 13.Rfd1 Qa8 14.d5 Nc7 15.Re1 b5 
16.e4 bxc4 17.bxc4 Nd7 18.Rb1 Rb8 19.Nb5 Nxb5 20.Bxg7 Kxg7 21.Rxb5 Ba6 22.
Rb3 f6 23.Reb1 Rxb3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Hort, Vlastimil"]
[Black "Andersson, Ulf"]
[WhiteElo "2590"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "B81"]
[EventDate "1973.04.02"]
[PlyCount "38"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Nc6 7.g5 Nd7 8.Be3 a6 
9.Qd2 Qc7 10.O-O-O Nxd4 11.Qxd4 b5 12.h4 Rb8 13.Kb1 b4 14.Na4 Bb7 15.b3 
Rc8 16.Bd3 Bc6 17.Bxa6 Ra8 18.Bc4 Qa5 19.f3 Ne5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Kavalek, Lubomir"]
[Black "Huguet, Bernard"]
[WhiteElo "2565"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "B53"]
[EventDate "1973.04.02"]
[PlyCount "71"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.
Bg5 e6 9.O-O-O Be7 10.Rhe1 O-O 11.Kb1 Qa5 12.Qd2 Qc7 13.Nd4 Rfd8 14.f4 h6 
15.Bxf6 Bxf6 16.f5 Bxd4 17.Qxd4 e5 18.Qe3 f6 19.g4 b5 20.h4 b4 21.Nd5 Bxd5
22.Rxd5 Rac8 23.Rc1 Qc4 24.g5 hxg5 25.hxg5 Kf7 26.gxf6 Kxf6 27.Qg1 g5 28.
Qh1 Kg7 29.Qh5 Qxe4 30.Qxg5+ Kf8 31.Qf6+ Ke8 32.Qe6+ Kf8 33.Rxd6 Rxd6 34.
Qxd6+ Ke8 35.f6 Qh7 36.Qxe5+ 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Ree, Hans"]
[Black "Darga, Klaus"]
[WhiteElo "2440"]
[BlackElo "2500"]
[Result "0-1"]
[ECO "B43"]
[EventDate "1973.04.02"]
[PlyCount "80"]

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.h3 O-O 11.g4 Rd8 12.g5 Ne8 13.f4 b5 14.h4 Bb7 15.a3 Bc5+ 16.
Kh1 Rac8 17.Qe1 Nf8 18.f5 exf5 19.Rxf5 Ng6 20.Rf1 Qe7 21.Qg3 Nc7 22.Bd2 
Ne6 23.Rae1 Nd4 24.Nxd4 Bxd4 25.Rf5 Ne5 26.Re2 Nc4 27.Qd3 Be5 28.Ref2 Nxb2
29.Nd5 Bxd5 30.Qxd5 Qe6 31.Rxf7 Qxd5 32.exd5 Rxc2 33.Ba5 Rxf2 34.Rxf2 Rf8 
35.Rc2 Nc4 36.Bb4 Rf4 37.Be1 Rd4 38.Kg1 Rd1 39.Kf2 Ra1 40.Bb4 a5 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Saidy, Anthony Fred"]
[Black "Petrosian, Tigran"]
[WhiteElo "2430"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1973.04.02"]
[PlyCount "51"]

1.c4 g6 2.Nc3 Bg7 3.g3 Nf6 4.Bg2 O-O 5.d4 d6 6.Nf3 Nc6 7.O-O a6 8.d5 Na5 
9.Nd2 c5 10.Qc2 Rb8 11.b3 b5 12.Bb2 Re8 13.Rae1 Bd7 14.h3 bxc4 15.bxc4 e6 
16.Rb1 Qe7 17.e4 Rec8 18.Rfe1 e5 19.Nd1 Bh6 20.Ne3 Nh5 21.Ndf1 Qd8 22.Bc3 
Qc7 23.Rxb8 Rxb8 24.Rb1 Rxb1 25.Qxb1 Nb7 26.Kh2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.04"]
[Round "3"]
[White "Stein, Leonid"]
[Black "Panno, Oscar"]
[WhiteElo "2605"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "E97"]
[EventDate "1973.04.02"]
[PlyCount "40"]

1.e4 g6 2.d4 Bg7 3.c4 d6 4.Nc3 Nf6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 
9.Nd2 c5 10.Rb1 Ne8 11.b4 b6 12.bxc5 bxc5 13.Nb3 f5 14.f3 Kh8 15.Bd2 Ng8 
16.Qc2 Nh6 17.Rb2 Nf6 18.Nc1 fxe4 19.fxe4 Nf7 20.Nd3 Bh6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Andersson, Ulf"]
[Black "Ree, Hans"]
[WhiteElo "2555"]
[BlackElo "2440"]
[Result "1-0"]
[ECO "B08"]
[EventDate "1973.04.02"]
[PlyCount "80"]

1.Nf3 g6 2.e4 d6 3.d4 Nf6 4.Nc3 Bg7 5.Be2 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 
Re8 9.Rad1 Bxf3 10.Bxf3 e5 11.dxe5 Nxe5 12.Be2 a6 13.Bg5 Nc6 14.f3 Qd7 15.
Rfe1 Na7 16.Bc4 Qc6 17.Bb3 Qc5+ 18.Be3 Qa5 19.Qf2 Nb5 20.Ne2 c5 21.a4 c4 
22.Bxc4 Qxa4 23.Bb3 Qb4 24.Nf4 Nc7 25.Rd4 Qa5 26.Rxd6 Qe5 27.Rd2 Qxb2 28.
Bd4 Qa3 29.e5 Bh6 30.Qh4 Qa5 31.Qxf6 Ne6 32.Bxe6 Rxe6 33.Nxe6 Qxd2 34.Bf2 
fxe6 35.Qxe6+ Kh8 36.Qf7 Bg7 37.e6 Bd4 38.Bxd4+ Qxd4+ 39.Kf1 Qg7 40.Qd7 
Qf8 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Calvo Minguez, Ricardo"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2470"]
[BlackElo "2495"]
[Result "1/2-1/2"]
[ECO "E11"]
[EventDate "1973.04.02"]
[PlyCount "34"]

1.d4 Nf6 2.Nf3 e6 3.c4 Bb4+ 4.Bd2 Qe7 5.e3 Bxd2+ 6.Nbxd2 d6 7.Be2 O-O 8.
O-O Nc6 9.a3 a5 10.b3 e5 11.d5 Nb8 12.Qc2 Na6 13.Rab1 c5 14.Ng5 h6 15.Nge4
Nxe4 16.Nxe4 f5 17.Nc3 Bd7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Darga, Klaus"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2500"]
[BlackElo "2430"]
[Result "1/2-1/2"]
[ECO "A11"]
[EventDate "1973.04.02"]
[PlyCount "32"]

1.Nf3 Nf6 2.c4 c6 3.g3 d5 4.Bg2 Bg4 5.cxd5 cxd5 6.Ne5 Bf5 7.Nc3 Nbd7 8.Qa4
e6 9.g4 Bc2 10.b3 Bd6 11.Nxd7 Qxd7 12.Nb5 Be5 13.d4 Bb8 14.Ba3 a6 15.Nc3 
Ne4 16.Bxe4 Bxe4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Hug, Werner"]
[Black "Stein, Leonid"]
[WhiteElo "2440"]
[BlackElo "2605"]
[Result "1/2-1/2"]
[ECO "B06"]
[EventDate "1973.04.02"]
[PlyCount "50"]

1.e4 Nf6 2.Nc3 d6 3.g3 g6 4.Bg2 Bg7 5.d3 O-O 6.f4 c6 7.Nh3 e5 8.O-O exf4 
9.Nxf4 Nbd7 10.Kh1 b5 11.Be3 Bb7 12.Qd2 b4 13.Nce2 c5 14.h3 Nb6 15.Rae1 
Qc7 16.Bg1 Rfe8 17.g4 Nfd7 18.c3 bxc3 19.Nxc3 Ne5 20.Bh2 a5 21.Rf2 Rab8 
22.Ref1 a4 23.Nfd5 Bxd5 24.exd5 Qa7 25.Ne4 Qe7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Huguet, Bernard"]
[Black "Hort, Vlastimil"]
[WhiteElo "2235"]
[BlackElo "2590"]
[Result "0-1"]
[ECO "A37"]
[EventDate "1973.04.02"]
[PlyCount "70"]

1.c4 g6 2.g3 Bg7 3.Bg2 c5 4.Nc3 Nc6 5.Nf3 Nh6 6.O-O Nf5 7.b3 b6 8.Bb2 Bb7 
9.d3 e6 10.e4 Nfd4 11.Nxd4 Bxd4 12.Qd2 Qf6 13.Rab1 O-O 14.Ne2 Bxb2 15.Qxb2
Qxb2 16.Rxb2 a6 17.Rd1 e5 18.Nc3 d6 19.a3 Rfb8 20.Nd5 Bc8 21.b4 cxb4 22.
Nxb4 Nd4 23.Nd5 b5 24.Rdb1 Be6 25.Nc3 Rc8 26.Bf1 Ra7 27.Rc1 Rac7 28.Ne2 
bxc4 29.Nxd4 c3 30.Rb6 exd4 31.Rxd6 c2 32.Rb6 Rc3 33.a4 Ra3 34.Rb2 Bb3 35.
a5 Rc3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Panno, Oscar"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2585"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A15"]
[EventDate "1973.04.02"]
[PlyCount "58"]

1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 O-O 5.e3 d6 6.d3 e5 7.Be2 a5 8.a3 e4 9.
Nd4 exd3 10.Qxd3 Na6 11.Qb3 Bg4 12.O-O c5 13.bxc5 Nxc5 14.Qc2 Bxe2 15.Nxe2
Qb6 16.Nd2 Rac8 17.Rab1 Qa6 18.Nf4 Ncd7 19.Qb3 g5 20.Bxf6 Nxf6 21.Nd3 d5 
22.cxd5 Rfd8 23.Nf3 Rxd5 24.Nd4 Rcd8 25.Rfd1 Ne4 26.Ne1 Bxd4 27.exd4 Rxd4 
28.Rxd4 Rxd4 29.Qe3 Qf6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Petrosian, Tigran"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2640"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "D91"]
[EventDate "1973.04.02"]
[PlyCount "54"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 Qd6 10.Be2 O-O 11.O-O c6 12.a3 a5 13.Na4 Nd7 14.Rc1 b6 15.Qd2 
Bb7 16.Rfd1 Rfc8 17.Rc2 Bf6 18.Nc3 Bg7 19.e4 dxe4 20.Nxe4 Qe7 21.Qf4 Nf6 
22.Nc3 Nd5 23.Nxd5 cxd5 24.Rxc8+ Rxc8 25.Bd3 Qc7 26.Qd2 Qd6 27.h3 Bc6 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.06"]
[Round "4"]
[White "Ribli, Zoltan"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2525"]
[BlackElo "2565"]
[Result "1-0"]
[ECO "A41"]
[EventDate "1973.04.02"]
[PlyCount "91"]

1.Nf3 g6 2.d4 Bg7 3.c4 d6 4.Nc3 Bg4 5.g3 Qd7 6.Bg2 Bh3 7.O-O Bxg2 8.Kxg2 
Nf6 9.e4 Nc6 10.d5 Na5 11.Qe2 c5 12.e5 dxe5 13.Nxe5 Qc8 14.Bd2 O-O 15.Na4 
Qc7 16.Rac1 b5 17.cxb5 Nb7 18.b4 Nxd5 19.Nf3 c4 20.Rxc4 Qd7 21.Rc6 Nd6 22.
Nc5 Qf5 23.a4 Rfe8 24.Qd3 Qxd3 25.Nxd3 Ne4 26.Re1 Nxd2 27.Nxd2 Bc3 28.Re2 
Red8 29.Ne4 Bxb4 30.Nxb4 Nxb4 31.Rc4 Nd5 32.Nc3 Nxc3 33.Rxc3 Rd7 34.Rec2 
Rd4 35.a5 Rb4 36.Rc8+ Rxc8 37.Rxc8+ Kg7 38.Rb8 Rb3 39.a6 Ra3 40.Rb7 Ra5 
41.Kf3 Kf6 42.Ke4 Ke6 43.Kd4 Kd6 44.Kc4 Ra2 45.Rxa7 Rxf2 46.b6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Ribli, Zoltan"]
[WhiteElo "2495"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "B66"]
[EventDate "1973.04.02"]
[PlyCount "41"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Bf4 Bd7 10.Nxc6 Bxc6 11.f3 d5 12.Qe1 Bb4 13.a3 Ba5 14.e5 Nd7 15.Bd2 
Bc7 16.f4 f6 17.exf6 Qxf6 18.g3 O-O-O 19.Bg2 Rhe8 20.Be3 e5 21.Nxd5 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Gheorghiu, Florin"]
[Black "Darga, Klaus"]
[WhiteElo "2550"]
[BlackElo "2500"]
[Result "1/2-1/2"]
[ECO "E12"]
[EventDate "1973.04.02"]
[PlyCount "33"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 exd5 7.Bg5 Nbd7 8.e3 
Be7 9.Be2 O-O 10.O-O c5 11.Ne5 Nxe5 12.dxe5 Ne4 13.Nxe4 dxe4 14.Qxd8 Bxd8 
15.Bf4 Be7 16.Rad1 Rfd8 17.Bc4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Hort, Vlastimil"]
[Black "Panno, Oscar"]
[WhiteElo "2590"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "C43"]
[EventDate "1973.04.02"]
[PlyCount "50"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Nxe5 Nf6 5.Bc4 d5 6.Bd3 Be7 7.O-O O-O 8.Bf4 
Nc6 9.c3 Nxe5 10.dxe5 Nd7 11.Bc2 Nc5 12.Re1 Ne6 13.Bg3 g6 14.Nd2 c5 15.Qe2
Qb6 16.Rab1 Qc6 17.Rbd1 b5 18.Ne4 Bb7 19.Nd6 Bxd6 20.exd6 Rae8 21.Qd2 f5 
22.Be5 Nd8 23.Bf4 Ne6 24.Be5 Nd8 25.Bf4 Ne6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Kavalek, Lubomir"]
[Black "Hug, Werner"]
[WhiteElo "2565"]
[BlackElo "2440"]
[Result "1-0"]
[ECO "B15"]
[EventDate "1973.04.02"]
[PlyCount "111"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Bd6 7.Qh5 O-O 8.
Ne2 Be6 9.Bd3 f5 10.Bg5 Qb6 11.b3 c5 12.dxc5 Bxc5 13.O-O Nc6 14.Qh3 Rfe8 
15.Rae1 Nb4 16.Nc1 Rac8 17.c4 h6 18.Bf4 Nxd3 19.Nxd3 Kh7 20.Nxc5 Qxc5 21.
Be5 Rcd8 22.Bb2 f6 23.Qh5 Bf7 24.Qxf7 Rxe1 25.Rxe1 Rd2 26.Rf1 Rxb2 27.Qxb7
Rxa2 28.Qf3 a5 29.Rc1 Rb2 30.g3 Kg6 31.Kg2 h5 32.h4 Qb6 33.Rc3 Qd4 34.Qe3 
Qe4+ 35.Qxe4 fxe4 36.Kf1 Rd2 37.c5 Rd7 38.c6 Rc7 39.Rc5 Kf7 40.Ke2 Ke6 41.
Ke3 Kd6 42.Rxa5 Rxc6 43.Kxe4 Ke6 44.Kd3 g6 45.b4 Rc1 46.Ra2 Kf5 47.Rb2 g5 
48.b5 Kg4 49.b6 Rc8 50.b7 Rb8 51.Ke2 gxh4 52.Rb4+ Kh3 53.gxh4 Re8+ 54.Kf3 
Rb8 55.Ke3 Kg2 56.Kf4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Ljubojevic, Ljubomir"]
[Black "Petrosian, Tigran"]
[WhiteElo "2565"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "C11"]
[EventDate "1973.04.02"]
[PlyCount "37"]

1.e4 e6 2.Nf3 d5 3.Nc3 Nf6 4.e5 Nfd7 5.d4 c5 6.dxc5 Bxc5 7.Bd3 Nc6 8.Bf4 
f6 9.exf6 Nxf6 10.O-O O-O 11.Ne5 Bd7 12.Qe2 Qe7 13.Rae1 Rae8 14.a3 a6 15.
Kh1 Bd4 16.Nxd7 Qxd7 17.Bd2 e5 18.f3 Kh8 19.Nd1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Ree, Hans"]
[Black "Huguet, Bernard"]
[WhiteElo "2440"]
[BlackElo "2235"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "100"]

1.c4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.e4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.f3 
Bg7 9.Be3 O-O 10.Qd2 Be6 11.Rc1 a6 12.b3 Rc8 13.Be2 Qa5 14.O-O Rc7 15.Kh1 
Rfc8 16.Nd5 Qxd2 17.Bxd2 Bxd5 18.cxd5 Rxc1 19.Rxc1 Rxc1+ 20.Bxc1 Nd7 21.
Kg1 Bd4+ 22.Kf1 Kf8 23.Bd3 h5 24.Bd2 Ke8 25.Bc2 Kd8 26.Ke2 Kc7 27.a4 b5 
28.axb5 axb5 29.Ba5+ Bb6 30.Bc3 Bg1 31.h3 Kb6 32.f4 Kc5 33.Ba5 b4 34.Bd8 
e6 35.dxe6 fxe6 36.Be7 Kd4 37.Bxd6 Kc3 38.Kd1 Bh2 39.e5 Bxf4 40.Bxg6 h4 
41.Bf7 Bxe5 42.Be7 Bf6 43.Bxf6+ Nxf6 44.Bxe6 Nh5 45.Bd5 Nf4 46.Be4 Kxb3 
47.Kd2 Kc4 48.Ke3 Nd5+ 49.Kf3 Kd4 50.Bg6 Ke5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Saidy, Anthony Fred"]
[Black "Andersson, Ulf"]
[WhiteElo "2430"]
[BlackElo "2555"]
[Result "1-0"]
[ECO "A30"]
[EventDate "1973.04.02"]
[PlyCount "139"]

1.c4 c5 2.Nc3 e6 3.Nf3 Nf6 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.d4 cxd4 8.Qxd4 
Nc6 9.Qf4 O-O 10.Rd1 Qb8 11.Qxb8 Raxb8 12.Bf4 Rbc8 13.Ne5 d6 14.Nxc6 Bxc6 
15.Bxd6 Bxd6 16.Rxd6 Bxg2 17.Kxg2 Rxc4 18.f3 Rfc8 19.Rad1 Kf8 20.e4 e5 21.
Kf2 R4c5 22.g4 Ke8 23.Ke3 R5c6 24.R6d2 a6 25.g5 Nh5 26.Rd5 f6 27.gxf6 gxf6
28.Rd7 R6c7 29.Rxc7 Rxc7 30.Rd6 b5 31.Rxa6 b4 32.Nd5 Rc2 33.Ra7 h6 34.Rh7 
Rxb2 35.Rxh6 Nf4 36.Nxf4 exf4+ 37.Kxf4 Ke7 38.Kf5 Rxa2 39.Rxf6 Ra5+ 40.e5 
Rb5 41.Rc6 b3 42.Rc7+ Kd8 43.Rc1 b2 44.Rb1 Ke7 45.f4 Rb4 46.h4 Kf7 47.h5 
Rb5 48.Ke4 Kg7 49.f5 Rb4+ 50.Kd5 Rb5+ 51.Kd6 Rb6+ 52.Kc5 Rb8 53.Kc6 Rb3 
54.e6 Kf6 55.h6 Rc3+ 56.Kd7 Rd3+ 57.Ke8 Rb3 58.h7 Rb8+ 59.Kd7 Rb7+ 60.Kd6 
Rxh7 61.Rxb2 Rh1 62.Rd2 Ra1 63.Kd7 Ra7+ 64.Ke8 Re7+ 65.Kd8 Ra7 66.Rd6 Ra8+
67.Kd7 Ra7+ 68.Ke8 Ra8+ 69.Rd8 Ra2 70.Rd7 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.07"]
[Round "5"]
[White "Stein, Leonid"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2605"]
[BlackElo "2470"]
[Result "1/2-1/2"]
[ECO "B98"]
[EventDate "1973.04.02"]
[PlyCount "46"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 
9.Bh4 g5 10.fxg5 Nfd7 11.Bg3 Ne5 12.Qf2 hxg5 13.Be2 Qb6 14.O-O-O Nbc6 15.
Na4 Qa7 16.Nxc6 Qxf2 17.Bxf2 bxc6 18.Nb6 Rb8 19.Bd4 Rxb6 20.Bxb6 c5 21.Ba5
Bb7 22.Bc3 Bxe4 23.Bf3 Bxf3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Andersson, Ulf"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2555"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "A36"]
[EventDate "1973.04.02"]
[PlyCount "28"]

1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Nc6 5.e3 e6 6.Nge2 Nge7 7.O-O O-O 8.d4 
cxd4 9.Nxd4 Nxd4 10.exd4 d5 11.cxd5 Nxd5 12.Nxd5 exd5 13.Qb3 Be6 14.Be3 
Qd7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Calvo Minguez, Ricardo"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2470"]
[BlackElo "2565"]
[Result "1-0"]
[ECO "B96"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Qe2 
Nbd7 9.O-O-O Be7 10.g4 h6 11.Bh4 g5 12.fxg5 Nh7 13.Nf5 exf5 14.Nd5 Qd8 15.
exf5 Ne5 16.Bg3 Bxg5+ 17.Kb1 O-O 18.h4 Bf6 19.g5 hxg5 20.hxg5 Bxg5 21.Bxe5
dxe5 22.Qg4 Kg7 23.f6+ Kg8 24.Qe4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Darga, Klaus"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2500"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A30"]
[EventDate "1973.04.02"]
[PlyCount "44"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 a6 
9.e3 d6 10.d4 Nbd7 11.Re1 e6 12.e4 cxd4 13.Nxd4 Qc7 14.Qd2 Rfd8 15.Rad1 
Rac8 16.h3 Nc5 17.Qe2 Qb8 18.Ba1 Qa8 19.Nc2 Ne8 20.Nd4 Nf6 21.Nc2 Ne8 22.
Nd4 Nf6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Stein, Leonid"]
[WhiteElo "2495"]
[BlackElo "2605"]
[Result "0-1"]
[ECO "A43"]
[EventDate "1973.04.02"]
[PlyCount "100"]

1.d4 c5 2.d5 Nf6 3.Nc3 g6 4.e4 d6 5.Be2 Bg7 6.Nf3 O-O 7.O-O Bg4 8.Nd2 Bxe2
9.Qxe2 Re8 10.Nc4 e6 11.Qf3 exd5 12.exd5 Nbd7 13.Bf4 Ne5 14.Bxe5 dxe5 15.
Rfe1 Nd7 16.d6 Nb6 17.Nxb6 Qxb6 18.d7 Re6 19.Rad1 Rd8 20.Ne4 Re7 21.Qc3 
Rexd7 22.Rxd7 Rxd7 23.Nxc5 Rc7 24.b4 Qc6 25.Qd3 b6 26.Qd8+ Bf8 27.Ne4 Kg7 
28.b5 Be7 29.bxc6 Bxd8 30.Rd1 Be7 31.Rd7 Rxd7 32.cxd7 Bd8 33.g4 Kf8 34.g5 
Ke7 35.Nf6 Ke6 36.Nxh7 Kxd7 37.Kg2 Ke6 38.Kf3 Kf5 39.h4 Be7 40.a4 e4+ 41.
Ke3 Bc5+ 42.Ke2 Bd4 43.f3 Kf4 44.fxe4 Kxe4 45.Nf8 Kd5 46.Kd3 Bf2 47.c4+ 
Kd6 48.Nh7 Bxh4 49.Nf6 Kc5 50.Ne4+ Kb4 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Hug, Werner"]
[Black "Hort, Vlastimil"]
[WhiteElo "2440"]
[BlackElo "2590"]
[Result "1/2-1/2"]
[ECO "B31"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Re1 O-O 7.d4 cxd4 8.cxd4 
d5 9.e5 Ne4 10.Nc3 Nxc3 11.bxc3 Na5 12.a4 Bf5 13.Ba3 a6 14.Bd3 Bg4 15.Rb1 
Rc8 16.Bc5 Rc6 17.c4 Nxc4 18.Rxb7 Re8 19.Qc2 Bxf3 20.Bxc4 Qc8 21.Rb3 Bxg2 
22.Kxg2 dxc4 23.Qxc4 e6 24.Qe2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Huguet, Bernard"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2235"]
[BlackElo "2430"]
[Result "0-1"]
[ECO "B68"]
[EventDate "1973.04.02"]
[PlyCount "40"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.f5 Ne5 11.fxe6 fxe6 12.Nf3 Qc7 13.Be2 Rd8 14.Bxf6 Bxf6 15.
Qxd6 Qa5 16.Rd5 exd5 17.Nxe5 Bg4 18.Qa3 Qxa3 19.bxa3 Bxe5 20.Bxg4 Bxc3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Panno, Oscar"]
[Black "Ree, Hans"]
[WhiteElo "2585"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "46"]

1.c4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be2 
Bg7 9.O-O O-O 10.Qe3 Be6 11.Rd1 Qb6 12.Qxb6 axb6 13.Be3 Rfc8 14.b3 b5 15.
Nxb5 Nxe4 16.Bd4 Bd7 17.Bxg7 Kxg7 18.Bf3 Bxb5 19.Bxe4 Bc6 20.Bxc6 bxc6 21.
Rd2 Ra6 22.Rb1 Rca8 23.Rbb2 c5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.08"]
[Round "6"]
[White "Ribli, Zoltan"]
[Black "Petrosian, Tigran"]
[WhiteElo "2525"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "E08"]
[EventDate "1973.04.02"]
[PlyCount "25"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 e6 4.O-O Be7 5.d4 O-O 6.c4 Nbd7 7.Qc2 c6 8.b3 b6 
9.Bb2 Bb7 10.Nc3 Rc8 11.Rad1 a5 12.e4 Ba6 13.Qe2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Gheorghiu, Florin"]
[Black "Huguet, Bernard"]
[WhiteElo "2550"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "B81"]
[EventDate "1973.04.02"]
[PlyCount "51"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.Rg1 Nc6 8.Be3 Qa5
9.Qd2 Nxd4 10.Bxd4 Bd7 11.f3 Bc6 12.Nb5 Qxd2+ 13.Kxd2 Bxb5 14.Bxb5+ Nd7 
15.a4 a6 16.Be2 O-O-O 17.c3 Ne5 18.b4 Kc7 19.a5 Nd7 20.Rab1 e5 21.Bf2 Be7 
22.Bc4 Rhf8 23.b5 axb5 24.Rxb5 Rb8 25.Rgb1 Nc5 26.Bd5 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Hort, Vlastimil"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2590"]
[BlackElo "2470"]
[Result "1-0"]
[ECO "A58"]
[EventDate "1973.04.02"]
[PlyCount "89"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.Nf3 g6 8.g3 Bg7 
9.Bg2 O-O 10.O-O Nbd7 11.Qc2 Qc7 12.Rd1 Rfb8 13.h3 Nb6 14.e4 Nfd7 15.Rb1 
Nc4 16.b3 Nce5 17.Nxe5 Bxe5 18.Bd2 Bd4 19.Be1 Qa7 20.a4 Ne5 21.Bf1 Nf3+ 
22.Kg2 Bxf1+ 23.Kxf1 Qd7 24.Kg2 Ng5 25.g4 h5 26.Qe2 hxg4 27.hxg4 e5 28.Bd2
f6 29.f3 Bxc3 30.Bxc3 f5 31.Bd2 f4 32.Rh1 Kf7 33.Qc4 Rh8 34.a5 Rh7 35.
Rxh7+ Nxh7 36.Rh1 Nf6 37.Kf2 g5 38.Ke2 Kg6 39.Kd1 Qg7 40.Qb5 Rh8 41.Rxh8 
Qxh8 42.a6 Qh1+ 43.Kc2 c4 44.Qxc4 Qa1 45.Qa4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Kavalek, Lubomir"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2565"]
[BlackElo "2495"]
[Result "1/2-1/2"]
[ECO "E90"]
[EventDate "1973.04.02"]
[PlyCount "119"]

1.c4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.h3 c6 7.Be3 a6 8.c5 b5 9.
cxb6 Qxb6 10.Qc2 a5 11.Na4 Qa7 12.Bd3 Ba6 13.O-O Bxd3 14.Qxd3 Nbd7 15.Nd2 
Qb7 16.Rfc1 Rfc8 17.Rc3 Qb5 18.Qc2 Ne8 19.Rc1 Ra6 20.Nc4 c5 21.Na3 Qb7 22.
Qd3 Raa8 23.Rb3 Qc6 24.d5 Qxa4 25.Rc4 Ne5 26.Rxa4 Nxd3 27.Rxd3 Bxb2 28.Nc4
Rcb8 29.Bd2 Bd4 30.Kf1 Nf6 31.f3 Rb1+ 32.Ke2 Rg1 33.g4 Rh1 34.g5 Nh5 35.
Rda3 Rh2+ 36.Kd1 Rxh3 37.Rxa5 Rxa5 38.Rxa5 Rxf3 39.a4 Ng3 40.Ra8+ Kg7 41.
a5 Rf1+ 42.Kc2 Nxe4 43.Re8 Nxd2 44.Kxd2 Rf2+ 45.Kd1 Bc3 46.Rxe7 Bxa5 47.
Nxa5 Rf5 48.Nc4 Rxd5+ 49.Ke2 Kf8 50.Rd7 Rxg5 51.Nxd6 Re5+ 52.Kf3 Re7 53.
Rd8+ Kg7 54.Rc8 f5 55.Rxc5 Kf6 56.Nc4 h5 57.Ne3 Kg5 58.Rc1 Re5 59.Rc4 h4 
60.Ng2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Ljubojevic, Ljubomir"]
[Black "Andersson, Ulf"]
[WhiteElo "2565"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "C15"]
[EventDate "1973.04.02"]
[PlyCount "77"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd3 dxe4 5.Bxe4 Nf6 6.Bf3 c5 7.a3 Ba5 8.dxc5 
Bxc3+ 9.bxc3 Qa5 10.Ne2 Nbd7 11.Bf4 e5 12.c6 bxc6 13.Bxc6 O-O 14.Bxa8 exf4
15.O-O Ba6 16.Bf3 Ne5 17.Nxf4 Bxf1 18.Kxf1 Rd8 19.Qe1 Nxf3 20.gxf3 h6 21.
Qe3 Qf5 22.c4 Rc8 23.Nd5 Nxd5 24.cxd5 Qxd5 25.Rc1 Qc4+ 26.Kg2 a6 27.c3 Rc6
28.Qe4 Rg6+ 29.Kh1 Qc5 30.Rg1 Qxf2 31.Rxg6 fxg6 32.h4 h5 33.Qxg6 Qxf3+ 34.
Kh2 Qf2+ 35.Kh3 Qf3+ 36.Kh2 Qf2+ 37.Kh3 Qf1+ 38.Kh2 Qf2+ 39.Kh3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Petrosian, Tigran"]
[Black "Darga, Klaus"]
[WhiteElo "2640"]
[BlackElo "2500"]
[Result "1/2-1/2"]
[ECO "A17"]
[EventDate "1973.04.02"]
[PlyCount "28"]

1.Nf3 Nf6 2.c4 b6 3.d3 c5 4.Nc3 Nc6 5.g3 Bb7 6.Bg2 e6 7.O-O Be7 8.e4 d6 9.
Ne1 O-O 10.f4 Ne8 11.g4 Nc7 12.Nf3 d5 13.f5 dxc4 14.dxc4 Bf6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Ree, Hans"]
[Black "Hug, Werner"]
[WhiteElo "2440"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "A55"]
[EventDate "1973.04.02"]
[PlyCount "83"]

1.c4 d6 2.Nc3 e5 3.g3 Nf6 4.Bg2 c6 5.Nf3 Be7 6.O-O Nbd7 7.d4 Qc7 8.e4 Nf8 
9.h3 Ng6 10.Qc2 h5 11.h4 Bd7 12.d5 c5 13.Nd1 Ng4 14.Ne1 O-O 15.f3 Nh6 16.
Bxh6 gxh6 17.Ne3 Bf6 18.Nd3 Kh7 19.Nf2 Rg8 20.Nf5 Qd8 21.Nd1 Ne7 22.Kh2 
Nxf5 23.exf5 Bxh4 24.f6+ Rg6 25.gxh4 Qxf6 26.Rf2 Qxh4+ 27.Kg1 Rg8 28.Ne3 
Qf4 29.Re1 h4 30.Kf1 h3 31.Bh1 f5 32.Ke2 Rg1 33.Ref1 R8g5 34.Ng4 Rxf1 35.
Rxf1 Kg7 36.Nf2 Qh4 37.Qc1 Rg3 38.Rg1 Rxg1 39.Qxg1+ Kh7 40.Qc1 Be8 41.Qc2 
Kg6 42.Qc3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Saidy, Anthony Fred"]
[Black "Panno, Oscar"]
[WhiteElo "2430"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "A24"]
[EventDate "1973.04.02"]
[PlyCount "83"]

1.c4 g6 2.Nc3 Bg7 3.g3 e5 4.Bg2 d6 5.e3 Nf6 6.Nge2 O-O 7.O-O Re8 8.d3 c6 
9.e4 Be6 10.h3 Qd7 11.Kh2 d5 12.b3 dxe4 13.dxe4 Na6 14.Be3 Qxd1 15.Raxd1 
Bf8 16.Na4 Nd7 17.Nec3 Ndc5 18.Bf3 h5 19.Rd2 Be7 20.Rfd1 b6 21.h4 Nxa4 22.
Nxa4 Rad8 23.Be2 Rxd2 24.Rxd2 Rd8 25.Rxd8+ Bxd8 26.a3 Bd7 27.Bd3 Nc7 28.
Nc3 Ne6 29.Ne2 Be7 30.b4 Kf8 31.Kg2 Ke8 32.f3 Kd8 33.Kf2 Kc7 34.Bd2 a5 35.
Bc3 f6 36.Ke3 axb4 37.axb4 c5 38.b5 Nd4 39.Bb2 g5 40.Nc3 Kd6 41.Nd5 Bd8 
42.f4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.10"]
[Round "7"]
[White "Stein, Leonid"]
[Black "Ribli, Zoltan"]
[WhiteElo "2605"]
[BlackElo "2525"]
[Result "1-0"]
[ECO "E63"]
[EventDate "1973.04.02"]
[PlyCount "71"]

1.c4 g6 2.d4 Nf6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O a6 8.h3 Rb8 
9.e4 b5 10.cxb5 axb5 11.Re1 Nd7 12.Bg5 h6 13.Be3 Na5 14.b3 c5 15.Qd2 Kh7 
16.Rac1 Nc6 17.Red1 b4 18.Ne2 Qa5 19.e5 Rd8 20.exd6 exd6 21.Ng5+ hxg5 22.
Bxc6 cxd4 23.Nxd4 Ne5 24.f4 Bxh3 25.Qh2 g4 26.Bg2 Bh6 27.Bxh3 gxh3 28.Qxh3
Kg7 29.Nc6 Nxc6 30.Rxc6 Qxa2 31.Bd4+ Kh7 32.g4 Qe2 33.Rcc1 Qe6 34.Re1 Qd7 
35.Qh4 Kg8 36.Qxh6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Andersson, Ulf"]
[Black "Petrosian, Tigran"]
[WhiteElo "2555"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "E92"]
[EventDate "1973.04.02"]
[PlyCount "18"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.dxe5 dxe5 8.Qxd8 
Rxd8 9.Bg5 Re8 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Calvo Minguez, Ricardo"]
[Black "Ree, Hans"]
[WhiteElo "2470"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "C84"]
[EventDate "1973.04.02"]
[PlyCount "87"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.e5 Ne4 7.O-O Be7 8.Nxd4 
O-O 9.Nxc6 dxc6 10.Nd2 Nc5 11.Bb3 Nxb3 12.Nxb3 Qxd1 13.Rxd1 Bg4 14.Re1 
Rad8 15.Be3 b6 16.Nd4 Bd7 17.c4 c5 18.Ne2 Bf5 19.Nf4 c6 20.h3 f6 21.exf6 
Bxf6 22.g4 Bc8 23.Re2 g6 24.Rc1 a5 25.b3 Rd6 26.Ree1 Bg5 27.Ng2 Bxe3 28.
Nxe3 Rd2 29.Rc2 Rfxf2 30.Rxd2 Rxd2 31.Nf1 Rd8 32.Re7 h5 33.Ne3 hxg4 34.
hxg4 Bd7 35.Kf2 Kf8 36.Rh7 Be6 37.Rb7 b5 38.cxb5 cxb5 39.Rxb5 Rd2+ 40.Kf3 
Rxa2 41.Kf4 Ra3 42.Nc4 Bxc4 43.bxc4 a4 44.Rxc5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Hort, Vlastimil"]
[WhiteElo "2495"]
[BlackElo "2590"]
[Result "1/2-1/2"]
[ECO "C16"]
[EventDate "1973.04.02"]
[PlyCount "60"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7 5.a3 Bxc3+ 6.bxc3 b6 7.a4 Ba6 8.Bxa6 
Nxa6 9.Qd3 Nb8 10.h4 Nc6 11.Nf3 Na5 12.h5 h6 13.Bf4 Ne7 14.Nd2 Qc6 15.Nb3 
Nc4 16.O-O a5 17.Bc1 g6 18.Qf3 Rh7 19.Nd2 O-O-O 20.Nxc4 dxc4 21.Qxc6 Nxc6 
22.hxg6 fxg6 23.Ba3 Rf7 24.f4 h5 25.Rf3 Rdd7 26.Kf2 Nd8 27.Rg1 Rh7 28.Rh3 
Rh8 29.g4 Rf7 30.Ke3 c6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Hug, Werner"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2440"]
[BlackElo "2430"]
[Result "1/2-1/2"]
[ECO "B52"]
[EventDate "1973.04.02"]
[PlyCount "115"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.O-O g6 7.d4 cxd4 8.
Nxd4 Nf6 9.f3 Nxd4 10.Qxd4 Bg7 11.Nc3 O-O 12.Qd3 Rfc8 13.Be3 Qc7 14.b3 Qa5
15.Rac1 a6 16.Rfd1 Rc6 17.Bd4 Kf8 18.Nd5 Nxd5 19.cxd5 Rcc8 20.Bxg7+ Kxg7 
21.Qd4+ f6 22.Qa4 Qxa4 23.bxa4 f5 24.exf5 gxf5 25.Kf2 Kf6 26.f4 b5 27.a5 
Rc4 28.Rxc4 bxc4 29.Ke3 Rb8 30.Rd2 c3 31.Rc2 Rb2 32.Kd3 Rb5 33.Kxc3 Rxd5 
34.Kb4 Rb5+ 35.Ka4 Rc5 36.Rb2 Rc4+ 37.Ka3 Rc5 38.Ka4 Rc4+ 39.Ka3 Rxf4 40.
Rb6 Rf2 41.Rxa6 Rxg2 42.Ra8 e5 43.Rf8+ Ke6 44.a6 Rg7 45.Kb4 d5 46.Kc5 d4 
47.Re8+ Kf6 48.Rd8 f4 49.Kd5 Ra7 50.Rf8+ Kg7 51.Rb8 Rxa6 52.Kxe5 Rxa2 53.
Kxf4 Rxh2 54.Rd8 Rf2+ 55.Ke4 Re2+ 56.Kd3 Re6 57.Rxd4 Kg6 58.Re4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Huguet, Bernard"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2235"]
[BlackElo "2565"]
[Result "0-1"]
[ECO "A14"]
[EventDate "1973.04.02"]
[PlyCount "78"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 e6 5.O-O Be7 6.b3 O-O 7.Bb2 d5 8.d3 c5 9.
Nbd2 Nc6 10.Qc2 d4 11.Rad1 Qd7 12.Qc1 Rad8 13.Ne1 Qc7 14.Nc2 Rfe8 15.Qa1 
e5 16.Nf3 a6 17.e3 Nd7 18.exd4 cxd4 19.Rfe1 f5 20.Re2 Bf6 21.b4 b5 22.cxb5
axb5 23.a4 bxa4 24.Qxa4 Nb6 25.Qb3+ Kh8 26.Nd2 Ne7 27.Bxb7 Qxb7 28.f3 Ng6 
29.Ra1 Bg5 30.Kf2 Bxd2 31.Rxd2 f4 32.g4 Nh4 33.Ne1 Nd5 34.Bc1 Ne3 35.Rda2 
Nxg4+ 36.fxg4 Qh1 37.Ra7 Qxh2+ 38.Kf1 e4 39.Qd1 e3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Panno, Oscar"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2585"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "D94"]
[EventDate "1973.04.02"]
[PlyCount "32"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.cxd5 Nxd5 7.Bc4 Nb6 8.Bb3 
c5 9.O-O cxd4 10.Nxd4 Nc6 11.Nxc6 bxc6 12.Qf3 a5 13.Na4 Qc7 14.Rd1 Nxa4 
15.Bxa4 Bb7 16.e4 Be5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Ribli, Zoltan"]
[Black "Darga, Klaus"]
[WhiteElo "2525"]
[BlackElo "2500"]
[Result "1-0"]
[ECO "A12"]
[EventDate "1973.04.02"]
[PlyCount "87"]

1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3 Bf5 5.Bg2 e6 6.Bb2 Nbd7 7.O-O Be7 8.d3 O-O 
9.Nbd2 h6 10.Rc1 Bh7 11.Rc2 a5 12.a3 c5 13.cxd5 exd5 14.a4 Re8 15.Nb1 Bf8 
16.Na3 Nb6 17.Nd2 c4 18.bxc4 Nxa4 19.Bxf6 Qxf6 20.Nb5 d4 21.Bxb7 Rab8 22.
Be4 Bb4 23.Bxh7+ Kxh7 24.Ne4 Qb6 25.Qa1 f5 26.Ned6 Bxd6 27.Nxd6 Qxd6 28.
Qxa4 Re5 29.Rfc1 Rc5 30.Qa3 f4 31.Rb2 fxg3 32.hxg3 Rxb2 33.Qxb2 a4 34.Qb7 
Re5 35.c5 Rxc5 36.Qe4+ Kg8 37.Qe8+ Kh7 38.Rxc5 Qxc5 39.Qxa4 Qe5 40.Qd7 h5 
41.Kf1 Kg6 42.Qc6+ Kf7 43.f4 Qf5 44.Kg2 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.11"]
[Round "8"]
[White "Stein, Leonid"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2605"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1973.04.02"]
[PlyCount "36"]

1.c4 g6 2.Nc3 Bg7 3.g3 Nf6 4.Bg2 d6 5.Nf3 c5 6.O-O O-O 7.d4 Nc6 8.d5 Na5 
9.Nd2 e5 10.a3 b6 11.b4 Nb7 12.e4 h5 13.Nf3 Bg4 14.Be3 Nh7 15.Qd3 f5 16.
Bd2 f4 17.h3 Bd7 18.h4 Bg4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Darga, Klaus"]
[Black "Andersson, Ulf"]
[WhiteElo "2500"]
[BlackElo "2555"]
[Result "0-1"]
[ECO "C07"]
[EventDate "1973.04.02"]
[PlyCount "108"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 Nf6 6.Bc4 Qd8 7.O-O cxd4 8.Nb3
Nc6 9.Nbxd4 Nxd4 10.Qxd4 Qxd4 11.Nxd4 a6 12.Bf4 Bc5 13.Nb3 Bb6 14.Be2 Bd7 
15.Bf3 O-O-O 16.Be3 Bxe3 17.fxe3 Kc7 18.Rad1 Bb5 19.Rfe1 Bc6 20.Nd2 Rhe8 
21.Bxc6 Kxc6 22.Nf3 Rxd1 23.Rxd1 e5 24.Kf2 Ne4+ 25.Ke2 f6 26.g4 Nc5 27.c4 
Na4 28.Rd2 Kc7 29.Kd1 Re6 30.Kc2 Rc6 31.b3 Nc5 32.Rg2 Ne4 33.Nd2 Nd6 34.e4
b5 35.g5 bxc4 36.gxf6 cxb3+ 37.Kxb3 Rb6+ 38.Kc2 gxf6 39.Rg7+ Kd8 40.Rxh7 
Rb4 41.Rh3 Ke7 42.Re3 Kf7 43.Kc3 a5 44.Kc2 Nb5 45.Re1 Ra4 46.Kb2 Ra3 47.
Nf1 Rf3 48.Ne3 Rf2+ 49.Kb3 Nd4+ 50.Kc4 Rxa2 51.Rf1 Ra4+ 52.Kd5 Ne2 53.Kc5 
Nc3 54.Nc4 Nxe4+ 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Gheorghiu, Florin"]
[Black "Hug, Werner"]
[WhiteElo "2550"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "42"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.e4 Nxd4 7.Qxd4 d6 8.Be3 
Bg7 9.f3 O-O 10.Qd2 Qa5 11.Rc1 Be6 12.Nd5 Qxa2 13.Nxe7+ Kh8 14.Bd4 Rae8 
15.Nd5 Bxd5 16.cxd5 Rc8 17.Be2 Rxc1+ 18.Qxc1 Nd7 19.Bxg7+ Kxg7 20.Qc3+ Kg8
21.O-O Nb6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Hort, Vlastimil"]
[Black "Stein, Leonid"]
[WhiteElo "2590"]
[BlackElo "2605"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1973.04.02"]
[PlyCount "22"]

1.c4 c5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nc3 O-O 6.d4 cxd4 7.Nxd4 Nc6 8.O-O 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Be6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Kavalek, Lubomir"]
[Black "Ribli, Zoltan"]
[WhiteElo "2565"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "D92"]
[EventDate "1973.04.02"]
[PlyCount "87"]

1.c4 g6 2.Nf3 Bg7 3.d4 Nf6 4.Nc3 d5 5.Bf4 O-O 6.Rc1 c5 7.dxc5 Be6 8.Nd4 
Nc6 9.Nxe6 fxe6 10.e3 Qa5 11.Be2 e5 12.cxd5 exf4 13.dxc6 bxc6 14.Qa4 Qxa4 
15.Nxa4 fxe3 16.fxe3 Bh6 17.Bf3 Bxe3 18.Rc3 Bd4 19.Rc4 Rad8 20.Bxc6 Ng4 
21.Rc2 Nf2 22.Rf1 Nd3+ 23.Ke2 Nb4 24.Be4 Rxf1 25.Kxf1 Nxc2 26.Bxc2 Be5 27.
c6 Rd2 28.Bb3+ Kg7 29.Nc5 Kh6 30.Ne6 Rd6 31.c7 Rc6 32.Bd5 Rc1+ 33.Ke2 Bxh2
34.Kd2 Rxc7 35.Nxc7 Bxc7 36.Ke3 Kg5 37.Kf3 h5 38.Bf7 Kf5 39.Be8 Bd6 40.Bf7
e5 41.Bd5 g5 42.Be4+ Kf6 43.g4 h4 44.Ke2 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Ljubojevic, Ljubomir"]
[Black "Panno, Oscar"]
[WhiteElo "2565"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "C67"]
[EventDate "1973.04.02"]
[PlyCount "63"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.Nc3 Ke8 10.Ne4 h6 11.Re1 Be6 12.g4 Ne7 13.h3 Rd8 14.Kg2 Nd5 
15.c3 c5 16.Nh4 g5 17.Nf5 Kd7 18.c4 Nb4 19.Rd1+ Kc8 20.Rxd8+ Kxd8 21.b3 
Kc8 22.Bd2 Nd3 23.Rd1 Nb2 24.Re1 Nd3 25.Re3 Nf4+ 26.Kg3 Ng6 27.Re1 b6 28.
Bc3 Ne7 29.Nxe7+ Bxe7 30.Rd1 Rg8 31.Rd3 a6 32.Nf6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Petrosian, Tigran"]
[Black "Huguet, Bernard"]
[WhiteElo "2640"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "D35"]
[EventDate "1973.04.02"]
[PlyCount "55"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Nbd7 5.cxd5 exd5 6.Bf4 c6 7.e3 Bb4 8.Bd3 
O-O 9.Qc2 Re8 10.a3 Ba5 11.b4 Bc7 12.Bg5 h6 13.Bh4 Nf8 14.Bxf6 gxf6 15.O-O
Bg4 16.Nh4 Qd6 17.g3 Kh8 18.Rfc1 Ne6 19.Bf5 Bxf5 20.Nxf5 Qf8 21.Qd1 Rac8 
22.Qh5 Kh7 23.h4 Bb8 24.e4 Nc7 25.exd5 Nxd5 26.Nxd5 cxd5 27.Rxc8 Rxc8 28.
Re1 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Ree, Hans"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2440"]
[BlackElo "2495"]
[Result "1/2-1/2"]
[ECO "A19"]
[EventDate "1973.04.02"]
[PlyCount "113"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.Nf3 Nc6 6.d4 Nxd4 7.Nxd4 cxd4 8.Qxd4 
Ne7 9.Bf4 Nc6 10.Qe3 b6 11.Be2 Bb7 12.O-O Be7 13.Rad1 O-O 14.Ne4 Na5 15.
Rd2 Bxe4 16.Qxe4 Qc7 17.Rfd1 Rad8 18.b3 Nb7 19.Bf3 Nc5 20.Qe3 a5 21.g3 Na6
22.h4 Bb4 23.Rd3 Bc5 24.Qd2 Bb4 25.Qb2 Be7 26.h5 h6 27.Qd2 Nc5 28.Rd4 Kh7 
29.a3 g5 30.hxg6+ fxg6 31.Qc2 Kg7 32.Bg2 a4 33.b4 Nb3 34.Re4 Bg5 35.Bxg5 
hxg5 36.Rd6 Rf7 37.Re2 Rc8 38.Re4 Rcf8 39.Qd3 Re7 40.Qe3 Rf5 41.Rxb6 Nd2 
42.g4 Rff7 43.Qxd2 Qxb6 44.c5 Qb5 45.Qxg5 Qd3 46.Re3 Qd2 47.Qh4 Kf8 48.Bf1
Rh7 49.Qg3 Qc1 50.Qg2 Ref7 51.Qa8+ Kg7 52.Qe4 Rf8 53.Rd3 Kg8 54.Rf3 Rxf3 
55.Qxf3 Rf7 56.Qe3 Qd1 57.Qe4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.12"]
[Round "9"]
[White "Saidy, Anthony Fred"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2430"]
[BlackElo "2470"]
[Result "1/2-1/2"]
[ECO "A36"]
[EventDate "1973.04.02"]
[PlyCount "86"]

1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 5.a3 e6 6.b4 Nge7 7.Rb1 cxb4 8.axb4 
O-O 9.Nf3 d5 10.b5 Na5 11.cxd5 exd5 12.Ba3 Bf5 13.Rc1 d4 14.Na4 Re8 15.Nc5
Nd5 16.O-O Rc8 17.Qa4 b6 18.Nb3 Rxc1 19.Nxc1 Nc7 20.Bb2 d3 21.Bxg7 dxe2 
22.Nxe2 Kxg7 23.Ned4 Bd3 24.Rc1 Qd7 25.Qa1 Kg8 26.Qc3 Bc4 27.Rb1 Bxb5 28.
h4 Nd5 29.Qa3 Bc4 30.h5 Nf6 31.hxg6 hxg6 32.Rc1 Bd5 33.d3 Bb7 34.Qb2 Kg7 
35.Rd1 Rd8 36.Nc2 Nc4 37.Qa1 a5 38.Ncd4 Bxf3 39.Nxf3 b5 40.Bf1 b4 41.d4 
Na3 42.d5 Qf5 43.Nd4 Qh5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Calvo Minguez, Ricardo"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2470"]
[BlackElo "2550"]
[Result "1-0"]
[ECO "B67"]
[EventDate "1973.04.02"]
[PlyCount "61"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Nxc6 Bxc6 11.Bd3 Be7 12.Rhe1 O-O 13.e5 dxe5 14.Qf2 Nd5 15.
Bxh7+ Kxh7 16.Rxd5 Bxg5 17.Rxd8 Bxf4+ 18.Rd2 Rad8 19.Re3 Kg8 20.Kd1 Rxd2+ 
21.Kxd2 b4 22.Nd1 Bd5 23.g3 Bh6 24.Ke1 e4 25.c4 Ba8 26.Re2 f5 27.Qb6 Kf7 
28.c5 g5 29.c6 Bg7 30.c7 Be5 31.Rc2 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2495"]
[BlackElo "2430"]
[Result "1-0"]
[ECO "B91"]
[EventDate "1973.04.02"]
[PlyCount "87"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be6 8.Bg2 
Nbd7 9.O-O Qc7 10.a4 Rc8 11.b3 Be7 12.Ba3 O-O 13.h3 Rfd8 14.Qd2 Nc5 15.
Rfd1 Bf8 16.Qe3 g6 17.g4 h6 18.a5 Kh7 19.Bb2 Ncd7 20.Kh1 Be7 21.f4 exf4 
22.Nxf4 Ne5 23.Rf1 Qc5 24.Qg3 Rf8 25.Rf2 Rce8 26.Nfd5 Bxd5 27.exd5 Qc7 28.
Raf1 Nfd7 29.Ne4 Qxa5 30.Bc1 Kg7 31.h4 Qd8 32.g5 hxg5 33.hxg5 Rh8+ 34.Kg1 
Ref8 35.Bb2 Kg8 36.Bh3 Rh5 37.Bg4 Nxg4 38.Qxg4 Rh7 39.Rh2 Rxh2 40.Kxh2 Qc8
41.Qh4 Ne5 42.Bxe5 dxe5 43.c4 Rd8 44.Kg3 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Hug, Werner"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2440"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A25"]
[EventDate "1973.04.02"]
[PlyCount "222"]

1.c4 g6 2.Nc3 Bg7 3.g3 e5 4.Bg2 Ne7 5.e3 Nbc6 6.Nge2 O-O 7.O-O d6 8.d3 Be6
9.Nd5 Nf5 10.Rb1 a5 11.a3 h5 12.b4 axb4 13.axb4 Na7 14.b5 c6 15.bxc6 bxc6 
16.Nb4 d5 17.Qc2 Qd7 18.Na6 Qd6 19.Ra1 dxc4 20.dxc4 Rfd8 21.Ba3 Qd2 22.
Qxd2 Rxd2 23.Nc7 Rad8 24.Nxe6 fxe6 25.Nc3 Rc2 26.Rfc1 Rxc1+ 27.Rxc1 Bf8 
28.Bxf8 Kxf8 29.Ra1 Rd7 30.Ne4 Ke7 31.Nc5 Rc7 32.Nd3 Kf6 33.Ra5 e4 34.Nc5 
Nd6 35.Nxe4+ Nxe4 36.Bxe4 c5 37.Ra6 Kf7 38.h4 Nc8 39.Kf1 Ne7 40.Ke2 Rd7 
41.Ra8 Kf6 42.Kf3 Kf7 43.Ra6 Kf6 44.Ra5 Rc7 45.Kf4 Rc8 46.Ra7 Rd8 47.Ra5 
Rc8 48.Ra6 Rd8 49.Kf3 Ke5 50.Ke2 Rd7 51.Bg2 Rd8 52.Bh3 Nf5 53.Bxf5 gxf5 
54.Rc6 Ra8 55.Rxc5+ Kd6 56.Rb5 Ra2+ 57.Kf3 Rc2 58.Rb6+ Ke5 59.Rc6 Kf6 60.
c5 Kf7 61.Rc8 e5 62.c6 Kf6 63.Kg2 Kg7 64.Kf1 e4 65.Ke1 Rc1+ 66.Kd2 Rc5 67.
Ke1 Rc1+ 68.Ke2 Rc2+ 69.Kf1 Rc1+ 70.Kg2 Rc2 71.c7 Rc1 72.g4 fxg4 73.Kg3 
Rc2 74.Re8 Rxc7 75.Rxe4 Rc2 76.Re5 Kg6 77.Rg5+ Kh6 78.Rf5 Re2 79.Re5 Kg6 
80.Re6+ Kg7 81.Re8 Kf7 82.Rb8 Kg7 83.Rb5 Kg6 84.Rg5+ Kh6 85.Kg2 Re1 86.Re5
Ra1 87.Rc5 Re1 88.Rc2 Kg6 89.Rc6+ Kh7 90.Re6 Kg7 91.f3 gxf3+ 92.Kxf3 Rh1 
93.Re4 Kf6 94.Rf4+ Ke5 95.Ra4 Rh3+ 96.Kf2 Kf5 97.Rb4 Ke5 98.Ke2 Kf5 99.
Rf4+ Ke5 100.Kd3 Rh1 101.Ke2 Rh3 102.Kf2 Ke6 103.Rc4 Kf5 104.Ra4 Ke5 105.
Ra5+ Ke4 106.Rxh5 Rf3+ 107.Kg2 Rxe3 108.Rh8 Kf4 109.Rg8 Re2+ 110.Kg1 Re1+ 
111.Kf2 Rh1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Huguet, Bernard"]
[Black "Darga, Klaus"]
[WhiteElo "2235"]
[BlackElo "2500"]
[Result "0-1"]
[ECO "A20"]
[EventDate "1973.04.02"]
[PlyCount "62"]

1.c4 Nf6 2.g3 c6 3.Bg2 e5 4.Nf3 e4 5.Nd4 Qb6 6.Nc2 d5 7.Nc3 Bf5 8.cxd5 
cxd5 9.d3 Bg6 10.O-O Nbd7 11.Be3 Qa6 12.dxe4 dxe4 13.Nd4 Bd6 14.Ndb5 Bb8 
15.Qb3 O-O 16.Rfd1 Re8 17.Rd2 Ne5 18.h3 Qc6 19.Nd5 a6 20.Nxf6+ gxf6 21.Nc3
Nc4 22.Rd4 Nxe3 23.fxe3 Ba7 24.Rc4 Qd6 25.Kh2 Bb8 26.Qxb7 Qxg3+ 27.Kg1 
Qxe3+ 28.Kh1 Qg3 29.Kg1 Ba7+ 30.Kh1 Bb8 31.Kg1 Qh2+ 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Kavalek, Lubomir"]
[Black "Hort, Vlastimil"]
[WhiteElo "2565"]
[BlackElo "2590"]
[Result "1/2-1/2"]
[ECO "D94"]
[EventDate "1973.04.02"]
[PlyCount "55"]

1.c4 g6 2.d4 Nf6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.cxd5 Nxd5 7.Bc4 Nb6 8.Bb3 
c5 9.O-O cxd4 10.exd4 Nc6 11.d5 Na5 12.Bg5 h6 13.Be3 Bg4 14.h3 Bxf3 15.
Qxf3 Nxb3 16.axb3 Bxc3 17.bxc3 Qxd5 18.Qxd5 Nxd5 19.Bxh6 Rfd8 20.c4 Nb4 
21.Ra4 a5 22.Rfa1 b6 23.c5 bxc5 24.Rxa5 Rxa5 25.Rxa5 Rd1+ 26.Kh2 Nd3 27.
Be3 Rb1 28.Bxc5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Panno, Oscar"]
[Black "Petrosian, Tigran"]
[WhiteElo "2585"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "A38"]
[EventDate "1973.04.02"]
[PlyCount "45"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 c5 7.d4 Nc6 8.e3 Bf5 
9.b3 Ne4 10.Bb2 Nxc3 11.Bxc3 Be4 12.Rc1 cxd4 13.Nxd4 Bxg2 14.Kxg2 Qd7 15.
Ne2 Ne5 16.e4 Rfd8 17.f4 Ng4 18.Qd3 Nf6 19.Bd4 Qc6 20.Bxf6 Bxf6 21.Rfd1 b6
22.Nd4 Qb7 23.Nf3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Ribli, Zoltan"]
[Black "Andersson, Ulf"]
[WhiteElo "2525"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1973.04.02"]
[PlyCount "80"]

1.Nf3 Nf6 2.c4 c5 3.g3 g6 4.Bg2 Bg7 5.Nc3 Nc6 6.O-O O-O 7.d4 cxd4 8.Nxd4 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Be3 Ng4 12.Bd4 Ne5 13.Qd1 Rb8 14.c5 Be6 15.Rc1
Re8 16.cxd6 Qxd6 17.Ba7 Ra8 18.Qxd6 exd6 19.Bd4 Nf3+ 20.Bxf3 Bxd4 21.Rfd1 
Be5 22.b3 Rac8 23.Nd5 Rc5 24.b4 Rc6 25.a3 h5 26.Rxc6 bxc6 27.Nc7 Rc8 28.
Nxe6 fxe6 29.Be4 Kf7 30.f4 Bb2 31.Rxd6 Bxa3 32.Rd7+ Kf6 33.Bd3 Bxb4 34.e4 
e5 35.Bc4 Rf8 36.Rc7 exf4 37.gxf4 Bd2 38.e5+ Kf5 39.e6 Bxf4 40.Rxc6 a5 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.14"]
[Round "10"]
[White "Stein, Leonid"]
[Black "Ree, Hans"]
[WhiteElo "2605"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "B77"]
[EventDate "1973.04.02"]
[PlyCount "60"]

1.Nf3 c5 2.e4 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 
d6 9.f3 Bd7 10.Qd2 Nxd4 11.Bxd4 b5 12.O-O b4 13.Nd5 Nxd5 14.exd5 a5 15.
Rfe1 Re8 16.Bxg7 Kxg7 17.Qd4+ Kg8 18.Re3 Qc7 19.Rae1 Bb5 20.c4 bxc3 21.
Rxc3 Qa7 22.Qxa7 Rxa7 23.Rec1 Rb8 24.Rc8+ Rxc8 25.Rxc8+ Kg7 26.Kf2 Bd7 27.
Rc2 h5 28.Ke3 Kf6 29.Bc4 Rc7 30.b3 Bb5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Andersson, Ulf"]
[Black "Huguet, Bernard"]
[WhiteElo "2555"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "A35"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.c4 c5 2.Nc3 Nc6 3.Nf3 g6 4.e3 Nf6 5.d4 cxd4 6.exd4 d5 7.cxd5 Nxd5 8.Qb3 
Nxc3 9.Bc4 e6 10.bxc3 Bg7 11.Ba3 Bf8 12.Bb5 Bd7 13.O-O Bxa3 14.Qxa3 Qe7 
15.Qb2 O-O 16.Rfe1 Qf6 17.Rab1 b6 18.Nd2 Rfd8 19.Ne4 Qg7 20.Qa3 Na5 21.Qe7
Bxb5 22.Rxb5 Nc6 23.Qb7 Rac8 24.Nd6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Darga, Klaus"]
[Black "Panno, Oscar"]
[WhiteElo "2500"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "B33"]
[EventDate "1973.04.02"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 Nf6 6.Nc3 e6 7.Bd3 Be7 8.O-O 
O-O 9.Kh1 d6 10.f4 Bd7 11.Qe2 Nb4 12.Be3 Qc7 13.a3 Nxd3 14.cxd3 b6 15.Nd4 
Rfd8 16.f5 e5 17.Nc2 d5 18.exd5 Be8 19.Qf3 Qd7 20.Qg3 Nxd5 21.Nxd5 Qxd5 
22.f6 Bf8 23.Nb4 Qd6 24.Bh6 g6 25.Bxf8 Qxf8 26.Qxe5 Qc5 27.Qe4 Rac8 28.Qh4
Rd4 29.Qh6 Qf8 30.Qe3 Rcd8 31.Rac1 R4d6 32.Qe4 Bb5 33.Qe5 Qe8 34.Qg5 Ba4 
35.Rce1 Qf8 36.Re5 Bb3 37.Rc1 h6 38.Qf4 Rc8 39.Rxc8 Qxc8 40.Re1 Qd8 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Gheorghiu, Florin"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2550"]
[BlackElo "2495"]
[Result "0-1"]
[ECO "E92"]
[EventDate "1973.04.02"]
[PlyCount "72"]

1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Nf3 O-O 6.Be2 e5 7.Be3 Qe7 8.d5 Ng4 
9.Bg5 f6 10.Bh4 h5 11.Nd2 a5 12.h3 Nh6 13.f3 Na6 14.a3 Bd7 15.Rb1 Nc5 16.
b4 axb4 17.axb4 Na4 18.Nxa4 Rxa4 19.Bf2 Nf7 20.c5 Rfa8 21.Nc4 Ra2 22.cxd6 
Nxd6 23.Nxd6 cxd6 24.Bc4 Ba4 25.Bb3 Bxb3 26.Qxb3 Qc7 27.O-O R8a3 28.Qd1 
Bh6 29.b5 Qc4 30.b6 Rd3 31.Rb4 Qa6 32.Qb1 Rdd2 33.Qb3 Qxf1+ 34.Kxf1 Rxf2+ 
35.Kg1 Rxg2+ 36.Kh1 Rgc2 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Hort, Vlastimil"]
[Black "Ribli, Zoltan"]
[WhiteElo "2590"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "A45"]
[EventDate "1973.04.02"]
[PlyCount "132"]

1.d4 Nf6 2.Bg5 c5 3.Bxf6 gxf6 4.d5 Qb6 5.Nd2 Qxb2 6.e3 f5 7.Bc4 Bg7 8.Rb1 
Qf6 9.Ne2 d6 10.Ng3 Nd7 11.Bb5 Rb8 12.Qh5 f4 13.Nf5 a6 14.Ne4 Qg6 15.Bd3 
Ne5 16.Qxg6 Nxd3+ 17.cxd3 hxg6 18.Nxg7+ Kf8 19.exf4 b5 20.f5 Kxg7 21.fxg6 
fxg6 22.Nc3 Bb7 23.a3 Ba8 24.Kd2 b4 25.axb4 cxb4 26.Nd1 Bxd5 27.Ne3 Be6 
28.Ra1 Rb6 29.Kc2 Rc8+ 30.Kd2 d5 31.Rhb1 Bf7 32.Rb2 e5 33.Ra5 d4 34.Ng4 
Rd8 35.Nxe5 Rd5 36.Nc4 Rxa5 37.Nxa5 Bd5 38.f3 b3 39.Kc1 Rb5 40.Nc4 Bxc4 
41.dxc4 Rb4 42.Rd2 a5 43.Rxd4 a4 44.Kb1 Kf6 45.Re4 a3 46.c5 Rb8 47.Re3 a2+
48.Kb2 Rd8 49.Re1 Rd2+ 50.Kxb3 Rxg2 51.Ra1 Rxh2 52.Rxa2 Rh3 53.Rf2 Ke6 54.
Kc4 Kd7 55.Rd2+ Kc7 56.Rd3 Rh5 57.Kb5 Rf5 58.Ra3 Rf6 59.Ra7+ Kb8 60.Ra3 
Kc7 61.Kc4 Rf4+ 62.Kd5 Rf5+ 63.Kd4 Rf4+ 64.Ke3 Rf5 65.Ra7+ Kc8 66.Ra5 g5 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Ljubojevic, Ljubomir"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2565"]
[BlackElo "2470"]
[Result "0-1"]
[ECO "C65"]
[EventDate "1973.04.02"]
[PlyCount "144"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Bxc6 dxc6 5.d3 Bd6 6.Nbd2 Be6 7.d4 Nd7 8.O-O
Qf6 9.c3 g5 10.dxe5 Bxe5 11.Nb3 Rg8 12.Nbd4 Bd6 13.Nxe6 fxe6 14.Qd4 Qxd4 
15.Nxd4 Ke7 16.f4 gxf4 17.Bxf4 Raf8 18.Bh6 Rxf1+ 19.Rxf1 Nf6 20.Bc1 c5 21.
Nf3 Nxe4 22.Re1 Nf6 23.Ng5 e5 24.Bf4 h6 25.Nf3 e4 26.Bxh6 Kd7 27.Nd2 Ng4 
28.Nxe4 Bxh2+ 29.Kf1 Nxh6 30.Nf6+ Kd6 31.Nxg8 Nxg8 32.g4 Bf4 33.Kf2 Nf6 
34.Kf3 Bg5 35.c4 b6 36.b3 a5 37.a4 Nd7 38.Re8 Nf6 39.Re1 Nd7 40.Re8 Be7 
41.Kf4 Ke6 42.Rh8 Bd6+ 43.Kg5 Nf6 44.Rh6 Ke5 45.Kh4 Ne4 46.Rh7 Kf6 47.Rh6+
Kf7 48.g5 Be7 49.Rh7+ Ke6 50.Kg4 Bxg5 51.Rxc7 Ke5 52.Rc8 Kd4 53.Rh8 Bc1 
54.Kf5 Nd2 55.Rh3 Bb2 56.Ke6 Bc3 57.Rh4+ Kd3 58.Kd5 Kc2 59.Kc6 Kxb3 60.Kb5
Nf3 61.Rh5 Ne5 62.Rh4 Nf3 63.Rh5 Nd4+ 64.Kxb6 Bb4 65.Rxc5 Bxc5+ 66.Kxc5 
Kc3 67.Kd5 Nc2 68.c5 Kb3 69.Kd6 Nb4 70.Kc7 Kxa4 71.Kb6 Nd5+ 72.Kc6 Nc3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Petrosian, Tigran"]
[Black "Hug, Werner"]
[WhiteElo "2640"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "A46"]
[EventDate "1973.04.02"]
[PlyCount "208"]

1.d4 Nf6 2.Nf3 c5 3.c3 b6 4.Bg5 Bb7 5.Nbd2 Ne4 6.Nxe4 Bxe4 7.e3 cxd4 8.
exd4 Qc7 9.Bd3 Qb7 10.Bxe4 Qxe4+ 11.Be3 e6 12.O-O Be7 13.Re1 Qf5 14.d5 O-O
15.Qd2 Bf6 16.Rad1 e5 17.d6 e4 18.Qc2 Re8 19.Bd4 Nc6 20.Bxf6 Qxf6 21.Rxe4 
Re6 22.Rxe6 fxe6 23.Qe4 Rf8 24.h3 Qf5 25.Qe2 Qc5 26.Rd2 h6 27.a3 Rf5 28.
Qe4 Rf6 29.Rd3 Qb5 30.Rd2 Qc5 31.Qd3 Ne5 32.Nxe5 Qxe5 33.g3 Rf8 34.Kg2 Rf6
35.h4 Rf5 36.c4 Rf8 37.b4 Rc8 38.f4 Qf6 39.Rc2 Qa1 40.Re2 Qc1 41.Rc2 Qb1 
42.Qc3 Qd1 43.c5 bxc5 44.bxc5 Qd5+ 45.Kh2 Kh8 46.Qc4 Qf3 47.a4 Qe3 48.Qb5 
Qe4 49.Rg2 Kh7 50.Qxd7 Rxc5 51.Qxa7 Rd5 52.Qa6 Qd4 53.Ra2 Rxd6 54.Qe2 Qd5 
55.Qc2+ Kg8 56.Rb2 Rd8 57.Qe2 Kh8 58.Rc2 Ra8 59.Rc4 Rb8 60.Qc2 Rd8 61.Rc5 
Qf3 62.Rc8 Rxc8 63.Qxc8+ Kh7 64.Qc2+ Kh8 65.Qa2 Qa8 66.a5 Qa6 67.h5 Kh7 
68.Kg1 Kh8 69.Kf2 Qa7+ 70.Kf3 Qb7+ 71.Ke3 Qa7+ 72.Ke4 Qb7+ 73.Kd4 Qb4+ 74.
Ke5 Qb8+ 75.Ke4 Qb7+ 76.Ke3 Qa7+ 77.Kf3 Qb7+ 78.Kf2 Qa7+ 79.Kf1 Qb7 80.Kg1
Qa7+ 81.Kh2 Qa6 82.Qd2 Qb5 83.g4 Qc4 84.Kg3 Qf1 85.Kh2 Qc4 86.Kg2 Kg8 87.
Kf2 Kh8 88.Ke3 Qc6 89.Qd8+ Kh7 90.Qd3+ Kh8 91.a6 Qh1 92.Qe2 Qc1+ 93.Ke4 
Qh1+ 94.Kd4 Qd5+ 95.Ke3 e5 96.f5 Qd4+ 97.Kf3 Qg1 98.Qxe5 Qf1+ 99.Ke3 Qe1+ 
100.Kd4 Qa1+ 101.Ke4 Qb1+ 102.Kd5 Qb5+ 103.Ke6 Qe8+ 104.Kd6 Qb8+ 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Ree, Hans"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2440"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A49"]
[EventDate "1973.04.02"]
[PlyCount "90"]

1.Nf3 Nf6 2.g3 d6 3.d4 Nbd7 4.Nc3 c5 5.d5 g6 6.Bg2 Bg7 7.O-O O-O 8.Re1 Nb6
9.e4 e5 10.dxe6 Bxe6 11.Bf4 Nc4 12.b3 Nh5 13.Bg5 Qa5 14.Nd5 Bxd5 15.exd5 
Bxa1 16.Qxa1 Na3 17.Bd2 Qd8 18.Qb2 Nb5 19.Bh6 Qf6 20.Qxf6 Nxf6 21.c4 Nc3 
22.Bxf8 Kxf8 23.a3 Re8 24.Rxe8+ Kxe8 25.Nd2 b5 26.f3 Ne2+ 27.Kf2 Nd4 28.
Bf1 a6 29.Be2 Nd7 30.Bd1 Nb6 31.Ke3 Ke7 32.Kd3 f5 33.f4 a5 34.a4 b4 35.Ke3
Nd7 36.Nf3 Nxf3 37.Kxf3 Kf6 38.Bc2 h6 39.Bd3 Nf8 40.Bc2 g5 41.Bd3 Ng6 42.
Bc2 h5 43.Bd3 h4 44.Bc2 Ne7 45.Bd3 Ng6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.15"]
[Round "11"]
[White "Saidy, Anthony Fred"]
[Black "Stein, Leonid"]
[WhiteElo "2430"]
[BlackElo "2605"]
[Result "1/2-1/2"]
[ECO "E69"]
[EventDate "1973.04.02"]
[PlyCount "119"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.Nf3 Nbd7 7.O-O e5 8.e4 c6 
9.h3 a6 10.Be3 b5 11.cxb5 axb5 12.dxe5 dxe5 13.b4 Ba6 14.Qb3 Qe7 15.Rfd1 
Rfc8 16.Bf1 Bb7 17.a3 h6 18.Nd2 Nf8 19.Qb2 Ne6 20.Nb3 Rd8 21.Bb6 Rd7 22.
Bg2 h5 23.h4 Bc8 24.Ne2 Rb8 25.Bc5 Nxc5 26.Nxc5 Rxd1+ 27.Rxd1 Nd7 28.Nxd7 
Bxd7 29.Nc1 Bg4 30.Rd2 Bh6 31.Rd3 c5 32.bxc5 Qxc5 33.Nb3 Qe7 34.Nd2 Bg7 
35.Nf1 Be6 36.Ne3 Qc5 37.Nd5 Kh7 38.Rc3 Qd4 39.Rb3 Qd1+ 40.Bf1 Rc8 41.Rc3 
Rxc3 42.Qxc3 Bxd5 43.exd5 e4 44.Qe3 Qxd5 45.Qe2 Bd4 46.Qxb5 Qa2 47.Qe2 
Qxa3 48.Kh2 f5 49.Qd2 Qa7 50.Kg2 Qc5 51.Qa2 Kg7 52.Qd2 Qe5 53.Qf4 Qxf4 54.
gxf4 Bc3 55.Bb5 Kf7 56.Bc4+ Ke7 57.Bd5 Be1 58.Bc4 Bd2 59.Kg3 Be1 60.Kg2 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Calvo Minguez, Ricardo"]
[Black "Petrosian, Tigran"]
[WhiteElo "2470"]
[BlackElo "2640"]
[Result "0-1"]
[ECO "C16"]
[EventDate "1973.04.02"]
[PlyCount "90"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Qg4 Nf5 6.Bd3 h5 7.Qf4 Nc6 8.a3 Be7 
9.Bxf5 g5 10.Qd2 exf5 11.h4 gxh4 12.Nce2 Be6 13.b3 Rg8 14.Nf4 Qd7 15.Ngh3 
O-O-O 16.Bb2 Rg7 17.O-O-O Rh8 18.Kb1 Bd8 19.Qe2 Rg4 20.f3 Rg7 21.Nd3 Ne7 
22.Nc5 Qc6 23.Nf4 Ng6 24.Nfd3 a5 25.c4 dxc4 26.bxc4 Bxc4 27.Rc1 Nf4 28.Qd2
Nxd3 29.Rxc4 Nxc5 30.Rxc5 Qb6 31.Rxa5 Kb8 32.Rc5 Be7 33.Rc3 Rhg8 34.Rh2 f6
35.Ka2 fxe5 36.Rb3 Qd6 37.d5 Rd8 38.f4 Qxd5 39.Qxd5 Rxd5 40.fxe5 Rd2 41.
Rf3 Rg3 42.Rxg3 hxg3 43.Rxh5 Rxg2 44.Kb3 Rh2 45.Rxf5 Rxb2+ 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2495"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "E49"]
[EventDate "1973.04.02"]
[PlyCount "50"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 exd5 8.e3 
O-O 9.Bd3 b6 10.Ne2 Re8 11.O-O Ba6 12.Ra2 Bxd3 13.Qxd3 Nc6 14.Nf4 Rc8 15.
Re2 Rc7 16.g4 h6 17.h4 Na5 18.Rg2 cxd4 19.cxd4 Nh7 20.g5 hxg5 21.hxg5 Nxg5
22.Kf2 Ne6 23.Rh1 Nxf4 24.Qh7+ Kf8 25.exf4 g6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Hort, Vlastimil"]
[Black "Ree, Hans"]
[WhiteElo "2590"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "A36"]
[EventDate "1973.04.02"]
[PlyCount "92"]

1.c4 c5 2.Nc3 g6 3.g3 Bg7 4.Bg2 Nc6 5.d3 d6 6.Bd2 e5 7.a3 Nge7 8.e3 Rb8 9.
Nge2 O-O 10.O-O a6 11.Nd5 Nxd5 12.cxd5 Ne7 13.Bc3 Bd7 14.Qd2 Nf5 15.Be4 
Qe7 16.a4 Nd4 17.exd4 exd4 18.Nxd4 cxd4 19.Bb4 f5 20.Bg2 f4 21.Rfe1 Qf6 
22.Qxf4 Qxf4 23.gxf4 Rf6 24.Re7 Bf5 25.Be4 Bf8 26.Bxf5 Rxf5 27.Rd7 Rxd5 
28.Rc1 a5 29.Ba3 b5 30.axb5 Rdxb5 31.Rc4 R5b7 32.Rxb7 Rxb7 33.Kg2 Kf7 34.
Rxd4 Ke6 35.Kf3 Be7 36.Rc4 Kd5 37.Ra4 Rb5 38.b4 axb4 39.Bxb4 Ke6 40.Bd2 
Rh5 41.Kg2 Rd5 42.Ra3 Bf6 43.Be3 Bb2 44.Rb3 Bf6 45.h3 Ra5 46.Kf3 Ra1 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Hug, Werner"]
[Black "Darga, Klaus"]
[WhiteElo "2440"]
[BlackElo "2500"]
[Result "1/2-1/2"]
[ECO "C00"]
[EventDate "1973.04.02"]
[PlyCount "53"]

1.e4 e6 2.d3 d5 3.Nd2 c5 4.Ngf3 Nc6 5.g3 Nf6 6.Bg2 Be7 7.O-O O-O 8.Re1 b5 
9.e5 Nd7 10.Nf1 a5 11.h4 b4 12.Bf4 Ba6 13.N1h2 Qb6 14.Ng5 Nd4 15.Rc1 Nf5 
16.Qg4 Qc6 17.Qh5 h6 18.Nh3 g6 19.Qd1 Kh7 20.Ng4 Rh8 21.Ne3 Rad8 22.Qd2 
Kg7 23.c3 Nb6 24.Nxf5+ gxf5 25.Qe2 Rdg8 26.Kh2 Qd7 27.Red1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Kavalek, Lubomir"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2565"]
[BlackElo "2430"]
[Result "1-0"]
[ECO "B18"]
[EventDate "1973.04.02"]
[PlyCount "67"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.f4 e6 7.h4 h6 8.Nf3 Nd7 
9.h5 Bh7 10.Bd3 Bxd3 11.Qxd3 Qc7 12.Bd2 Ngf6 13.O-O-O c5 14.Qe2 O-O-O 15.
Ne5 Nb6 16.dxc5 Bxc5 17.Kb1 Bd4 18.Ba5 Rd5 19.c4 Rxe5 20.fxe5 Qxe5 21.Rhe1
Qxa5 22.Rxd4 Nbd7 23.c5 Qc7 24.Ne4 Nxe4 25.Qxe4 Nf6 26.Qf3 Rd8 27.Rxd8+ 
Kxd8 28.Qa3 a6 29.c6 Ke8 30.cxb7 Qxb7 31.g4 Nd5 32.Rc1 f6 33.Qd6 Kf7 34.
Rc6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Panno, Oscar"]
[Black "Andersson, Ulf"]
[WhiteElo "2585"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "D78"]
[EventDate "1973.04.02"]
[PlyCount "42"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.d4 d5 5.O-O O-O 6.c4 c6 7.Qa4 Ne4 8.Nc3 Nd7 
9.cxd5 Nxc3 10.bxc3 cxd5 11.Qb4 Re8 12.Bf4 Nb6 13.a4 Nc4 14.e4 dxe4 15.
Qxc4 exf3 16.Bxf3 e5 17.dxe5 Bxe5 18.Bxe5 Rxe5 19.Rfd1 Qe7 20.h4 Bf5 21.
Qd4 Be4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Ribli, Zoltan"]
[Black "Huguet, Bernard"]
[WhiteElo "2525"]
[BlackElo "2235"]
[Result "1-0"]
[ECO "E08"]
[EventDate "1973.04.02"]
[PlyCount "101"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 e6 4.O-O Be7 5.d4 O-O 6.c4 Nbd7 7.Qc2 c6 8.b3 b6 
9.Rd1 a5 10.Nbd2 Ba6 11.e4 Rc8 12.Bb2 Qc7 13.Rac1 Qa7 14.h4 c5 15.e5 Ng4 
16.cxd5 exd5 17.Qb1 cxd4 18.Bxd4 Bc5 19.Qb2 Rfe8 20.Re1 Nf8 21.Bxc5 bxc5 
22.Bh3 h5 23.Nh2 c4 24.Nxg4 hxg4 25.Bxg4 Rb8 26.Qa1 Rb4 27.bxc4 dxc4 28.a3
c3 29.Ne4 Rd4 30.Qxc3 Rxe5 31.Bf3 f6 32.Qb3+ Kh8 33.Re3 a4 34.Qc3 Rc4 35.
Qd2 Rxc1+ 36.Qxc1 Bb7 37.Qc3 Qa8 38.Nd2 Nd7 39.Bxb7 Qxb7 40.Nc4 Rxe3 41.
Qxe3 Qd5 42.Qe8+ Kh7 43.Ne3 Qd3 44.Qh5+ Kg8 45.Qe8+ Kh7 46.Kg2 Qb5 47.Qe4+
Kg8 48.Qc4+ Qxc4 49.Nxc4 Kf7 50.Kf3 Ke6 51.Ke4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.16"]
[Round "12"]
[White "Stein, Leonid"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2605"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "A22"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.c4 Nf6 2.g3 e5 3.Nc3 Bb4 4.Bg2 O-O 5.e4 Bxc3 6.bxc3 c6 7.Ne2 d5 8.cxd5 
cxd5 9.exd5 Nxd5 10.O-O Nc6 11.Rb1 Re8 12.Ba3 Nb6 13.Qc2 Bg4 14.d3 Qd7 15.
Bc5 Bxe2 16.Qxe2 Na4 17.Qe3 Nxc3 18.Rb3 Nd5 19.Qf3 Red8 20.Rc1 Rac8 21.
Qxd5 Qxd5 22.Bxd5 Rxd5 23.Rxb7 Nd8 24.Re7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Andersson, Ulf"]
[Black "Hug, Werner"]
[WhiteElo "2555"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "100"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be3 
Bg7 9.f3 O-O 10.Qd2 Qa5 11.Rc1 Be6 12.Nd5 Qxa2 13.Nxe7+ Kh8 14.Be2 Ng8 15.
Nxg8 Kxg8 16.Bd4 Bxd4 17.Qxd4 Qa5+ 18.Kf2 Qe5 19.Rcd1 Rfc8 20.b3 a5 21.
Qxd6 Qxd6 22.Rxd6 a4 23.bxa4 Rxa4 24.Rb1 Ra2 25.Ke3 Bxc4 26.Bxc4 Rxc4 27.
Rd8+ Kg7 28.Rxb7 Rxg2 29.Rdd7 Rc3+ 30.Rd3 Rxd3+ 31.Kxd3 Rxh2 32.e5 Kf8 33.
f4 Rf2 34.Ke3 Rf1 35.Rb4 h5 36.Ke2 Ra1 37.Rb8+ Kg7 38.Rb7 Ra6 39.Kf3 Rc6 
40.Ra7 Re6 41.Ke4 Rb6 42.Kf3 Kf8 43.Kg3 Re6 44.Ra5 f6 45.Kh4 Kg7 46.Ra7+ 
Kh6 47.exf6 Rxf6 48.Kg3 Rb6 49.Ra3 Kg7 50.Kf3 Kf6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Darga, Klaus"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2500"]
[BlackElo "2470"]
[Result "1/2-1/2"]
[ECO "A25"]
[EventDate "1973.04.02"]
[PlyCount "33"]

1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.d3 Bb4 6.Bd2 O-O 7.Nf3 d6 8.O-O a5 
9.Rc1 Kh8 10.Nd5 Be6 11.Bg5 Ne7 12.Nxe7 Qxe7 13.d4 exd4 14.Nxd4 c6 15.e3 
h6 16.Bxf6 Rxf6 17.Nxe6 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Gheorghiu, Florin"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2550"]
[BlackElo "2565"]
[Result "1-0"]
[ECO "B51"]
[EventDate "1973.04.02"]
[PlyCount "39"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 a6 6.Bf1 Bg4 7.d3 Bxf3 8.Qxf3 
g6 9.c3 Bg7 10.Nd2 e6 11.Nc4 b5 12.e5 Nxe5 13.Nxd6+ Ke7 14.Rxe5 Kxd6 15.
Re1 Nf6 16.a4 Qc8 17.d4 c4 18.Bg5 Qc6 19.Bxf6 Qxf3 20.Be5+ 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Huguet, Bernard"]
[Black "Panno, Oscar"]
[WhiteElo "2235"]
[BlackElo "2585"]
[Result "0-1"]
[ECO "B43"]
[EventDate "1973.04.02"]
[PlyCount "112"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 b5 7.Bg2 Bb7 8.O-O Bc5
9.Nb3 Be7 10.Bf4 d6 11.Qe2 Nc6 12.Rad1 Nf6 13.Be3 Ne5 14.f4 Nc4 15.Bc1 O-O
16.Kh1 Rac8 17.Nd2 Rfd8 18.Rfe1 Nb6 19.a3 h6 20.Ndb1 Nfd7 21.b3 Bf6 22.Bb2
Nc5 23.Rd2 Bc6 24.Nd1 Nbd7 25.Bxf6 Nxf6 26.Nbc3 Qb7 27.Nf2 d5 28.Red1 Re8 
29.Re1 dxe4 30.Nfxe4 Ncxe4 31.Nxe4 Nxe4 32.Bxe4 e5 33.f5 Red8 34.Rxd8+ 
Rxd8 35.Kg1 f6 36.Bxc6 Qxc6 37.Rd1 Rc8 38.Rd2 Qc5+ 39.Kg2 Qxa3 40.Qd1 Qc5 
41.Kh3 e4 42.Qg4 Qe7 43.Re2 Re8 44.Qf4 a5 45.c4 bxc4 46.bxc4 a4 47.Qe3 Qe5
48.g4 h5 49.Kh4 hxg4 50.Kxg4 a3 51.h4 Rd8 52.Qxa3 e3 53.Rxe3 Rd4+ 54.Kf3 
Qxf5+ 55.Ke2 Qg4+ 56.Rf3 Rxc4 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Ljubojevic, Ljubomir"]
[Black "Stein, Leonid"]
[WhiteElo "2565"]
[BlackElo "2605"]
[Result "0-1"]
[ECO "A01"]
[EventDate "1973.04.02"]
[PlyCount "50"]

1.b3 e5 2.Bb2 d6 3.e3 Nf6 4.c4 g6 5.d4 Bg7 6.Nc3 exd4 7.Qxd4 O-O 8.Nf3 
Nbd7 9.Be2 Nc5 10.Rd1 Ng4 11.Qd2 Nxf2 12.O-O Nxd1 13.Bxd1 Bg4 14.h3 Bxf3 
15.Bxf3 a5 16.Nd5 c6 17.Bxg7 Kxg7 18.Qd4+ f6 19.Nf4 Qe7 20.Kh1 Rfe8 21.Qd2
Qxe3 22.Qxd6 Qe5 23.Qd2 Rad8 24.Qxa5 Ne4 25.Ne6+ Qxe6 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Petrosian, Tigran"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2640"]
[BlackElo "2495"]
[Result "1-0"]
[ECO "A16"]
[EventDate "1973.04.02"]
[PlyCount "79"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.O-O Nc6 7.d3 Bd7 8.a3 Qc8 
9.Re1 Bh3 10.Bh1 h6 11.Nd5 Nxd5 12.cxd5 Nd8 13.Bd2 c6 14.dxc6 Nxc6 15.Bc3 
Qd7 16.Bxg7 Kxg7 17.Qd2 Rac8 18.Rac1 Ne5 19.Nxe5 dxe5 20.Qe3 Qb5 21.b4 b6 
22.Bb7 Rxc1 23.Rxc1 f6 24.Bc6 Qa6 25.a4 Bf5 26.f4 Qc8 27.fxe5 Qe6 28.exf6+
Qxf6 29.Bf3 Bh3 30.d4 Qd6 31.Rc4 g5 32.d5 g4 33.Bg2 Rf6 34.Qd4 Bxg2 35.
Kxg2 a5 36.bxa5 bxa5 37.Qxg4+ Kf7 38.Qh5+ Kg7 39.Qg4+ Kf7 40.Qe4 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Ree, Hans"]
[Black "Ribli, Zoltan"]
[WhiteElo "2440"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "37"]

1.c4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.f3 
Bg7 9.Be3 O-O 10.Qd2 Be6 11.Rc1 Qa5 12.b3 Rfc8 13.Be2 a6 14.Nd5 Qxd2+ 15.
Kxd2 Nxd5 16.cxd5 Bd7 17.Rxc8+ Rxc8 18.Rc1 Rxc1 19.Kxc1 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.18"]
[Round "13"]
[White "Saidy, Anthony Fred"]
[Black "Hort, Vlastimil"]
[WhiteElo "2430"]
[BlackElo "2590"]
[Result "0-1"]
[ECO "A29"]
[EventDate "1973.04.02"]
[PlyCount "81"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bc5 5.d3 d6 6.Bg2 O-O 7.O-O Bf5 8.Na4 h6 
9.b3 Re8 10.Bb2 Qe7 11.Nh4 Bd7 12.Nxc5 dxc5 13.Qd2 Qd6 14.Rfe1 Rad8 15.Qc3
b6 16.Rad1 a5 17.a3 Be6 18.h3 Bc8 19.Kh2 Re7 20.Nf3 Bb7 21.Nd2 Ba8 22.Bxc6
Bxc6 23.f3 Nh5 24.Ne4 Qd7 25.g4 Nf4 26.Ng3 Re6 27.Bc1 g6 28.Be3 Qe7 29.Qd2
Rf6 30.Ne4 Bxe4 31.fxe4 g5 32.a4 Kg7 33.Bxf4 exf4 34.Qc3 Rd4 35.Kg2 Qe5 
36.Qc2 h5 37.Kf3 Rh6 38.Rh1 Rd8 39.Rdg1 Rdh8 40.Qc1 hxg4+ 41.hxg4 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Calvo Minguez, Ricardo"]
[Black "Andersson, Ulf"]
[WhiteElo "2470"]
[BlackElo "2555"]
[Result "1/2-1/2"]
[ECO "C02"]
[EventDate "1973.04.02"]
[PlyCount "47"]

1.e4 e6 2.d4 d5 3.e5 b6 4.c3 Qd7 5.Bd3 Ba6 6.Bc2 c5 7.Ne2 Nc6 8.Ba4 Nge7 
9.O-O Nf5 10.Re1 Rc8 11.dxc5 bxc5 12.Nd2 Be7 13.Nf4 O-O 14.Nf3 Rfd8 15.Bc2
d4 16.Bxf5 exf5 17.e6 fxe6 18.Nxe6 Re8 19.cxd4 cxd4 20.Nexd4 Nxd4 21.Qxd4 
Qxd4 22.Nxd4 Bf6 23.Rxe8+ Rxe8 24.Nf3 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Diez del Corral Rivas, Jesus"]
[Black "Darga, Klaus"]
[WhiteElo "2495"]
[BlackElo "2500"]
[Result "1/2-1/2"]
[ECO "C90"]
[EventDate "1973.04.02"]
[PlyCount "155"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d3 b5 7.Bb3 d6 8.c3 O-O 
9.Re1 Na5 10.Bc2 c5 11.Nbd2 Nc6 12.Nf1 Re8 13.h3 Qc7 14.Bg5 h6 15.Bh4 Nh5 
16.Ne3 Bxh4 17.Nxh4 Nf4 18.Nd5 Qd8 19.Nxf4 exf4 20.Nf3 Bb7 21.d4 Qf6 22.a3
g5 23.Qd3 Qg7 24.dxc5 dxc5 25.Qd7 Rab8 26.a4 Ne5 27.Nxe5 Qxe5 28.axb5 Bc8 
29.Qd5 axb5 30.Red1 Qc7 31.e5 Rxe5 32.Qd8+ Qxd8 33.Rxd8+ Kg7 34.f3 c4 35.
b4 cxb3 36.Bxb3 Re7 37.c4 bxc4 38.Bxc4 Rc7 39.Bf1 Rb2 40.Rdd1 Be6 41.Rac1 
Ra7 42.Ra1 Rc7 43.Rac1 Rcb7 44.Bd3 R7b3 45.Be4 Re3 46.Rc2 Rb5 47.Rcd2 Kf6 
48.Bd5 Kg6 49.Bxe6 fxe6 50.Kf2 Rbb3 51.Ra1 Kh5 52.Rc2 Rbd3 53.Kg1 Rd6 54.
Rac1 Kg6 55.Rc6 Rd2 56.R6c2 Rd6 57.Rc6 Re1+ 58.Kh2 Rxc6 59.Rxc6 h5 60.Rc8 
Kf7 61.Rc7+ Kf6 62.Rc8 g4 63.hxg4 hxg4 64.Rf8+ Ke5 65.fxg4 Re3 66.g5 Rg3 
67.Rg8 Kf5 68.Rf8+ Ke4 69.Rf6 e5 70.g6 Kd5 71.Kg1 Rg4 72.Kf1 e4 73.g7 Ke5 
74.Rf7 e3 75.Re7+ Kf6 76.Re4 Kf5 77.Re7 Rg6 78.Rf7+ 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Hort, Vlastimil"]
[Black "Gheorghiu, Florin"]
[WhiteElo "2590"]
[BlackElo "2550"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1973.04.02"]
[PlyCount "30"]

1.Nf3 c5 2.c4 g6 3.e4 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be3 
Bg7 9.Be2 O-O 10.Qd2 Be6 11.Rc1 Qa5 12.f3 Rfc8 13.b3 a6 14.Na4 Qxd2+ 15.
Kxd2 Nd7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Hug, Werner"]
[Black "Huguet, Bernard"]
[WhiteElo "2440"]
[BlackElo "2235"]
[Result "1/2-1/2"]
[ECO "B25"]
[EventDate "1973.04.02"]
[PlyCount "98"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.g3 d6 6.Bg2 e6 7.O-O Nge7 8.d3 O-O 
9.Be3 Nd4 10.Qd2 b6 11.Rae1 Bb7 12.Nh4 f5 13.Nd1 d5 14.e5 Ndc6 15.Bf2 Qd7 
16.c3 Rac8 17.Nf3 Rc7 18.h3 Rfc8 19.g4 Nd8 20.Bh4 b5 21.Bf6 a5 22.Qf2 Ba6 
23.Qg3 b4 24.Nh4 Ndc6 25.Rf2 bxc3 26.bxc3 Rb8 27.gxf5 Nxf5 28.Nxf5 gxf5 
29.Bf1 Kh8 30.Rg2 Rg8 31.Qh4 Qf7 32.Ree2 Bxf6 33.exf6 Rcc8 34.Rb2 Rxg2+ 
35.Rxg2 Rg8 36.Be2 Rxg2+ 37.Kxg2 Nd8 38.Kh2 Qg6 39.Bh5 Qh6 40.Nf2 Bb5 41.
Kg3 a4 42.a3 Bc6 43.d4 cxd4 44.Nd3 dxc3 45.Ne5 c2 46.f7 Nb7 47.Ng6+ hxg6 
48.Qf6+ Kh7 49.f8=Q Qxf4+ 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Kavalek, Lubomir"]
[Black "Ljubojevic, Ljubomir"]
[WhiteElo "2565"]
[BlackElo "2565"]
[Result "1-0"]
[ECO "B04"]
[EventDate "1973.04.02"]
[PlyCount "111"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 c6 6.O-O Bg7 7.exd6 Qxd6 8.h3 O-O
9.Nbd2 Nd7 10.Bb3 Qc7 11.Re1 N7f6 12.Nc4 a5 13.a3 a4 14.Ba2 b5 15.Nce5 c5 
16.dxc5 Qxc5 17.Qd4 Qd6 18.Qh4 Bf5 19.Bh6 Bxc2 20.Bxg7 Kxg7 21.Nd4 Rac8 
22.Rac1 Be4 23.Rxc8 Rxc8 24.Rxe4 Rc1+ 25.Kh2 Nxe4 26.Qxe4 Rc5 27.f4 f5 28.
Nxf5+ gxf5 29.Qxf5 Nf6 30.Qg5+ Kf8 31.Nd7+ Qxd7 32.Qxc5 Qd2 33.Qe5 Qf2 34.
Be6 h6 35.Qb8+ Kg7 36.Qc7 Kf8 37.Qd8+ Ne8 38.Qb8 Qd2 39.Bg4 Qd6 40.Qxd6 
Nxd6 41.Be2 Kg7 42.g4 Kf6 43.Kg3 e5 44.Kf3 Ke6 45.h4 Kd5 46.fxe5 Kxe5 47.
Ke3 Kd5 48.Bd3 Kc5 49.g5 hxg5 50.hxg5 b4 51.g6 Ne8 52.Bc2 bxa3 53.bxa3 Kb5
54.Kd4 Ng7 55.Ke5 Ne8 56.Ke6 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Ree, Hans"]
[Black "Saidy, Anthony Fred"]
[WhiteElo "2440"]
[BlackElo "2430"]
[Result "0-1"]
[ECO "B99"]
[EventDate "1973.04.02"]
[PlyCount "50"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 
9.Bh4 Nbd7 10.O-O-O Qc7 11.Be2 Rb8 12.Qg3 Rg8 13.f5 e5 14.Ne6 fxe6 15.Bh5+
Kd8 16.fxe6 g5 17.exd7 Bxd7 18.Bf7 gxh4 19.Qe1 Rg7 20.Bb3 b5 21.Rf1 b4 22.
Rxf6 Bxf6 23.Nd5 Bg5+ 24.Kb1 Qc5 25.Qf1 Be7 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Ribli, Zoltan"]
[Black "Panno, Oscar"]
[WhiteElo "2525"]
[BlackElo "2585"]
[Result "1/2-1/2"]
[ECO "A41"]
[EventDate "1973.04.02"]
[PlyCount "26"]

1.Nf3 g6 2.d4 Bg7 3.c4 d6 4.Nc3 c6 5.g3 Qa5 6.Bg2 f5 7.O-O Nf6 8.Rb1 Qa6 
9.b3 O-O 10.Bb2 Nbd7 11.d5 Nc5 12.Nd4 Bd7 13.b4 Nce4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.19"]
[Round "14"]
[White "Stein, Leonid"]
[Black "Petrosian, Tigran"]
[WhiteElo "2605"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "B84"]
[EventDate "1973.04.02"]
[PlyCount "87"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d6 5.Nc3 e6 6.Be3 Nf6 7.Be2 Be7 8.O-O 
Bd7 9.Nb3 a6 10.f4 b5 11.a3 O-O 12.Bf3 Rb8 13.Qd2 Qc7 14.g4 Be8 15.g5 Nd7 
16.Qg2 Nb6 17.Rae1 Nc4 18.Bc1 a5 19.Kh1 b4 20.axb4 Rxb4 21.f5 a4 22.Nd2 
N4e5 23.Bd1 Nd4 24.f6 Bd8 25.Re3 Bc6 26.Rh3 Ng6 27.Qg4 Re8 28.Qh5 Nf8 29.
fxg7 Kxg7 30.Nf3 Nb5 31.Nxb5 Bxb5 32.Re1 Bc6 33.Nd2 Rb5 34.Nb1 Kg8 35.Nc3 
Rc5 36.Kg1 Qb7 37.Rf1 Bb6 38.Be3 Rxc3 39.bxc3 Bxe4 40.Qh4 a3 41.Bh5 Bf5 
42.Rhf3 Bxe3+ 43.Rxe3 a2 44.Qd4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Andersson, Ulf"]
[Black "Diez del Corral Rivas, Jesus"]
[WhiteElo "2555"]
[BlackElo "2495"]
[Result "1/2-1/2"]
[ECO "A38"]
[EventDate "1973.04.02"]
[PlyCount "38"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 c5 7.a3 Nc6 8.Rb1 Bf5 
9.d3 Qd7 10.b4 Rac8 11.Bd2 h6 12.Qa4 b6 13.Rfc1 Bh3 14.Bxh3 Qxh3 15.Nd5 
Qd7 16.d4 Ne4 17.Be3 e6 18.Nc3 Nxc3 19.Rxc3 Qe7 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Darga, Klaus"]
[Black "Stein, Leonid"]
[WhiteElo "2500"]
[BlackElo "2605"]
[Result "1/2-1/2"]
[ECO "A05"]
[EventDate "1973.04.02"]
[PlyCount "84"]

1.Nf3 c5 2.b3 d5 3.e3 Nf6 4.Bb2 g6 5.Be2 Bg7 6.O-O O-O 7.d3 Nc6 8.Ne5 Bd7 
9.Bf3 Qc7 10.d4 Nxe5 11.dxe5 Ne4 12.Bxe4 dxe4 13.Nc3 Bc6 14.Nd5 Qd7 15.Nf4
Qf5 16.Qd2 Bxe5 17.Bxe5 Qxe5 18.Rad1 Kg7 19.c4 b6 20.h3 Rac8 21.Rfe1 Rc7 
22.Qc2 Rd7 23.Rxd7 Bxd7 24.Rd1 Bc6 25.a3 Rc8 26.Ne2 Rc7 27.Nc3 f5 28.Nb5 
Rb7 29.a4 Kf7 30.Rd8 a6 31.Qc3 Qxc3 32.Nxc3 Rd7 33.Rb8 Bb7 34.g4 e6 35.a5 
bxa5 36.Na4 Rc7 37.Nxc5 Bc8 38.Na4 Bd7 39.g5 e5 40.Rh8 Kg7 41.Ra8 Bxa4 42.
bxa4 Rxc4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Gheorghiu, Florin"]
[Black "Ree, Hans"]
[WhiteElo "2550"]
[BlackElo "2440"]
[Result "1/2-1/2"]
[ECO "B31"]
[EventDate "1973.04.02"]
[PlyCount "110"]

1.Nf3 c5 2.e4 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.c3 O-O 7.h3 a6 8.Bxc6 
dxc6 9.d4 cxd4 10.cxd4 c5 11.e5 Nd5 12.dxc5 Nb4 13.Qe2 Qd3 14.a3 Qxe2 15.
Rxe2 Nd3 16.Be3 Be6 17.Nc3 Nxe5 18.Nxe5 Bxe5 19.Bh6 Bg7 20.Bxg7 Kxg7 21.
Rd1 Rfc8 22.Ne4 h6 23.Rd4 a5 24.b4 axb4 25.axb4 Ra1+ 26.Kh2 Rb1 27.Nc3 Rb3
28.Nb5 b6 29.cxb6 Rb8 30.Nc7 Rxb6 31.b5 Rc3 32.Nxe6+ fxe6 33.Rb4 Rc5 34.
Reb2 e5 35.Kg3 Rc3+ 36.f3 Kf6 37.Kf2 Rc5 38.Ke3 Ke6 39.Ke4 Kf6 40.Kd3 Ke6 
41.Ke4 Kf6 42.Ke3 g5 43.h4 Kg6 44.hxg5 hxg5 45.Ke4 e6 46.Ke3 Rd5 47.Kf2 
Rc5 48.Kg3 Kf5 49.Kf2 Rd5 50.Ke3 Kf6 51.Ke4 Kg6 52.g3 Rc5 53.Kd3 Rd6+ 54.
Ke3 Rb6 55.Ke4 Rd5 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Huguet, Bernard"]
[Black "Calvo Minguez, Ricardo"]
[WhiteElo "2235"]
[BlackElo "2470"]
[Result "0-1"]
[ECO "B25"]
[EventDate "1973.04.02"]
[PlyCount "56"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.g3 d6 6.Bg2 e6 7.O-O Nge7 8.d3 O-O 
9.Be3 b6 10.d4 Ba6 11.Rf2 Rc8 12.Rd2 cxd4 13.Nxd4 Na5 14.Nxe6 fxe6 15.Rxd6
Qc7 16.Bh3 Rcd8 17.Bxe6+ Kh8 18.Rxd8 Rxd8 19.Qf3 Nc4 20.Bxc4 Qxc4 21.Rd1 
Rxd1+ 22.Qxd1 Bxc3 23.bxc3 Qxe4 24.Kf2 Kg8 25.g4 Nd5 26.Bc1 Bc4 27.h4 Qe7 
28.Kg3 Nxc3 0-1


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Ljubojevic, Ljubomir"]
[Black "Hort, Vlastimil"]
[WhiteElo "2565"]
[BlackElo "2590"]
[Result "1/2-1/2"]
[ECO "B26"]
[EventDate "1973.04.02"]
[PlyCount "40"]

1.e4 e6 2.d3 c5 3.g3 Nc6 4.Bg2 g6 5.Nc3 Bg7 6.Be3 d6 7.Qd2 Rb8 8.Nge2 Nd4 
9.h4 h5 10.Rb1 Ne7 11.b4 Bd7 12.O-O O-O 13.Bg5 f6 14.Be3 e5 15.Nd1 Bg4 16.
f3 Be6 17.a3 Qc7 18.c3 Nxe2+ 19.Qxe2 b6 20.d4 cxd4 1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Panno, Oscar"]
[Black "Hug, Werner"]
[WhiteElo "2585"]
[BlackElo "2440"]
[Result "1-0"]
[ECO "A56"]
[EventDate "1973.04.02"]
[PlyCount "91"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3 O-O 7.Bh3 Nbd7 8.Nf3 b5 9.
cxb5 a6 10.Bf1 Qc7 11.Nd2 Nb6 12.b3 axb5 13.Nxb5 Qd7 14.Nc3 Ba6 15.Bxa6 
Rxa6 16.Qe2 Rfa8 17.O-O Qb7 18.Bb2 Nfd7 19.Rfb1 Bg5 20.Bc1 g6 21.a4 Nc8 
22.Nb5 Ndb6 23.Rb2 Qd7 24.Kg2 h5 25.Nf3 Bf6 26.h3 c4 27.Bd2 Bd8 28.Bb4 Be7
29.Nd2 Rb8 30.Nc3 Ra7 31.a5 cxb3 32.Ra3 Na8 33.Raxb3 Nc7 34.Nc4 Nb5 35.
Nxb5 Rxb5 36.Bc3 Rxb3 37.Rxb3 Qa4 38.Rb4 Qd7 39.Qb2 Kh7 40.Nb6 Nxb6 41.
axb6 Rb7 42.Rc4 f5 43.Ba5 fxe4 44.Rc7 Rxc7 45.bxc7 Qf5 46.Qc3 1-0


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Petrosian, Tigran"]
[Black "Kavalek, Lubomir"]
[WhiteElo "2640"]
[BlackElo "2565"]
[Result "1/2-1/2"]
[ECO "A37"]
[EventDate "1973.04.02"]
[PlyCount "15"]

1.c4 g6 2.Nc3 Bg7 3.Nf3 c5 4.g3 Nc6 5.Bg2 e6 6.d3 Nge7 7.O-O d5 8.Bg5 
1/2-1/2


[Event "2nd Las Palmas it"]
[Site "Las Palmas ESP"]
[Date "1973.04.21"]
[Round "15"]
[White "Saidy, Anthony Fred"]
[Black "Ribli, Zoltan"]
[WhiteElo "2430"]
[BlackElo "2525"]
[Result "1/2-1/2"]
[ECO "D94"]
[EventDate "1973.04.02"]
[PlyCount "28"]

1.d4 Nf6 2.c4 c5 3.e3 g6 4.Nc3 Bg7 5.Nf3 O-O 6.Be2 d5 7.O-O cxd4 8.exd4 
Nc6 9.Re1 dxc4 10.d5 Na5 11.Bf4 Bd7 12.Ne5 Rc8 13.Bf3 Bb5 14.Qd2 Re8 
1/2-1/2

