[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Vadasz, Laszlo"]
[Black "Mestel, Andrew Jonathan"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2475"]
[ECO "E62"]
[EventDate "1979.07.06"]
[PlyCount "99"]

1.Nf3 g6 2.c4 Bg7 3.d4 d6 4.g3 Nf6 5.Bg2 O-O 6.O-O c6 7.Nc3 Qa5 8.h3 e5 9.
e4 exd4 10.Nxd4 Qc5 11.Be3 Qxc4 12.a3 Qa6 13.b4 Bd7 14.Re1 b6 15.Kh2 Ne8 
16.Qd2 Qc8 17.Bh6 a6 18.Bxg7 Kxg7 19.Nc2 f6 20.f4 Ra7 21.Rac1 Be6 22.Nd4 
Qd7 23.h4 Bg4 24.f5 Nc7 25.Qf4 c5 26.Qxg4 cxd4 27.Nd5 Nc6 28.Nxb6 Ne5 29.
Qd1 Qd8 30.Qxd4 Nb5 31.Qg1 Rb7 32.Nd5 Nd3 33.Nf4 Nxf4 34.gxf4 Rc7 35.Bh3 
Qc8 36.fxg6 Rc2+ 37.Rxc2 Qxc2+ 38.Kh1 Qc3 39.Re3 Qd4 40.gxh7+ Kh8 41.Bf5 
d5 42.h5 Qa7 43.exd5 Nd6 44.Be6 Qxh7 45.Qg6 Qxg6 46.hxg6 f5 47.Rc3 Kg7 48.
Rc6 Rd8 49.Rxa6 Kxg6 50.Kg2 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Westerinen, Heikki"]
[Black "Mestel, Andrew Jonathan"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2475"]
[ECO "B78"]
[EventDate "1979.07.06"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 
Nc6 9.Bc4 Bd7 10.h4 Rc8 11.Bb3 h5 12.O-O-O Ne5 13.Bg5 Rc5 14.g4 hxg4 15.f4
Nc4 16.Qe2 b5 17.e5 dxe5 18.Ndxb5 Nxb2 19.Kxb2 Qa5 20.Rxd7 Nxd7 21.Bxe7 
Rxc3 22.Nxc3 exf4 23.Qc4 Nb6 24.Qb4 Qxb4 25.Bxb4 Rc8 26.Rf1 f3 27.a4 Rc4 
28.Bxc4 Nxc4+ 29.Kc1 Bh6+ 30.Kd1 Ne3+ 31.Ke1 Nxc2+ 32.Kf2 Nxb4 33.Rd1 f5 
34.Rd6 Bf8 35.Rd8 Kf7 36.Kg3 Bc5 37.Nd1 Ke6 38.Rd2 Nd5 39.a5 Nf6 40.Rc2 
Nh5+ 41.Kh2 g3+ 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Westerinen, Heikki"]
[Black "Hartston, William Roland"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2485"]
[ECO "B22"]
[EventDate "1979.07.06"]
[PlyCount "83"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.cxd4 e6 6.Nf3 d6 7.Bc4 Be7 8.O-O O-O
9.Qe2 Nc6 10.Nc3 dxe5 11.dxe5 Nxc3 12.bxc3 b6 13.Qe4 Bb7 14.Bd3 g6 15.Bh6 
Re8 16.Qe3 Bc5 17.Qe2 Qc7 18.Rfe1 Ne7 19.Rac1 Nf5 20.Bg5 Be7 21.Be4 Rac8 
22.Bxb7 Qxb7 23.Bf6 h5 24.h3 b5 25.g4 Ng7 26.Nd2 Red8 27.Ne4 Rc4 28.Qe3 
Kh7 29.Bxe7 Rxe4 30.Qxe4 Qxe7 31.Rcd1 Rc8 32.Re3 Qg5 33.Kh2 Kg8 34.Rd4 Qh4
35.Kg2 Qg5 36.Qf4 Qe7 37.Red3 Qb7+ 38.Qf3 Qb6 39.Rd7 Rf8 40.Rb7 hxg4 41.
hxg4 Qc5 42.Rd8 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2310"]
[ECO "C02"]
[EventDate "1979.07.06"]
[PlyCount "84"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.Be2 f6 7.exf6 Nxf6 8.O-O cxd4
9.cxd4 Bd6 10.Nc3 O-O 11.Re1 a6 12.Bg5 Qc7 13.Bh4 Nh5 14.Rc1 Nf4 15.Bg3 
Be8 16.Ng5 Qe7 17.Nf3 Bh5 18.Ne5 Nxe2+ 19.Nxe2 Nxe5 20.dxe5 Bb4 21.Rf1 
Rac8 22.f3 Qg5 23.Bf4 Qe7 24.Be3 Rxc1 25.Qxc1 Qd7 26.Bd4 Rc8 27.Qg5 Bf7 
28.Rc1 h6 29.Qe3 Be7 30.Rxc8+ Qxc8 31.Kf2 Qc4 32.Qc3 Bb4 33.Qxc4 dxc4 34.
Bb6 Bd2 35.Nd4 Bf4 36.Bc7 Bc1 37.b3 cxb3 38.Nxb3 Ba3 39.Bd6 Bb2 40.Ke3 b6 
41.Bc7 Bg6 42.Bxb6 Bxe5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Fedder, Steen"]
[Black "Vadasz, Laszlo"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2490"]
[ECO "E01"]
[EventDate "1979.07.06"]
[PlyCount "84"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.Nf3 cxd4 5.Nxd4 d5 6.Bg2 e5 7.Nb5 a6 8.N5c3 d4 
9.Nd5 Nxd5 10.cxd5 Bc5 11.O-O O-O 12.e3 Nd7 13.exd4 Bxd4 14.Nd2 Nf6 15.Qb3
Bg4 16.h3 Bh5 17.Re1 Qa5 18.g4 Bg6 19.Nf3 Ne4 20.Re2 Rfe8 21.Be3 Nc5 22.
Qd1 Bd3 23.Qd2 Qb5 24.Bxd4 Bxe2 25.Nxe5 f6 26.Nf3 Rad8 27.Nh4 Ne4 28.Qe3 
Ng5 29.Qb3 Bc4 30.Qxb5 axb5 31.Bb6 Rd7 32.Rd1 Bxa2 33.d6 g6 34.Nf3 Ne4 35.
Bc7 f5 36.gxf5 gxf5 37.Nd4 Nxd6 38.Nxb5 Nxb5 39.Rxd7 Be6 40.Bd5 Bxd5 41.
Rxd5 Nxc7 42.Rd7 Rc8 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Hartston, William Roland"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2490"]
[ECO "D12"]
[EventDate "1979.07.06"]
[PlyCount "39"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Nc3 e6 7.Ne5 Nfd7 8.g4 
Bg6 9.Nxg6 hxg6 10.Bg2 Nc6 11.h3 Be7 12.O-O Nb6 13.b3 Rc8 14.Bd2 O-O 15.f4
g5 16.f5 e5 17.dxe5 Nxe5 18.Be1 Bc5 19.Bf2 Re8 20.Nb5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Kristiansen, Jens"]
[Black "Sloth, Joern"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2400"]
[ECO "A07"]
[EventDate "1979.07.06"]
[PlyCount "82"]

1.e4 c6 2.d3 d5 3.Nd2 Nd7 4.Ngf3 Qc7 5.g3 Ngf6 6.Bg2 dxe4 7.dxe4 e5 8.O-O 
Bc5 9.b3 O-O 10.Bb2 b6 11.Ne1 Ba6 12.c4 Rad8 13.Qc2 Rfe8 14.Nd3 Bd4 15.
Bxd4 exd4 16.h3 Nh5 17.Kh2 g6 18.f4 f6 19.Rae1 c5 20.Nf3 Bb7 21.e5 Bxf3 
22.Bxf3 fxe5 23.Bd5+ Kh8 24.f5 e4 25.Nf4 Nxg3 26.Kxg3 g5 27.Rxe4 Nf6 28.
Rxe8+ Rxe8 29.Be6 Nh5+ 30.Kg4 Nxf4 31.Qe4 Qg7 32.Re1 Rf8 33.Qe5 h5+ 34.Kg3
Qxe5 35.Rxe5 Kg7 36.h4 Kf6 37.Re1 Nxe6 38.fxe6 gxh4+ 39.Kxh4 Re8 40.Kxh5 
Rxe6 41.Rf1+ Ke7 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Mestel, Andrew Jonathan"]
[Black "Mortensen, Erling"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2365"]
[ECO "B83"]
[EventDate "1979.07.06"]
[PlyCount "59"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O Nc6 8.Be3 
O-O 9.f4 e5 10.Nb3 exf4 11.Rxf4 Nd7 12.Rf1 Nde5 13.Qd2 Be6 14.Nd5 h6 15.
Rad1 Bg5 16.Kh1 Bxd5 17.Bxg5 Qxg5 18.Qxg5 hxg5 19.Rxd5 Nb4 20.Rd2 Rfc8 21.
c3 Nxa2 22.Rxd6 f6 23.Nd4 Nxc3 24.bxc3 Rxc3 25.Nf3 Re3 26.Bd1 Rxe4 27.Bb3+
Kf8 28.Bd5 Re3 29.Re6 Rd8 30.Nxe5 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Reshevsky, Samuel"]
[Black "Oest-Hansen, Jacob"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2380"]
[ECO "A31"]
[EventDate "1979.07.06"]
[PlyCount "71"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 b6 5.f3 a6 6.e4 Qc7 7.Nc3 e6 8.Be3 Bb7 
9.Qd2 d6 10.Be2 Be7 11.g4 h6 12.O-O-O Nc6 13.Kb1 Nd7 14.h4 h5 15.g5 g6 16.
Rhf1 O-O-O 17.Rc1 Nxd4 18.Bxd4 Rhf8 19.f4 Kb8 20.Bg1 Rfe8 21.f5 Rc8 22.Qd4
Bf8 23.fxg6 fxg6 24.Rf7 Re7 25.Rcf1 Rce8 26.Bh2 e5 27.Qe3 Bg7 28.Bg1 Nc5 
29.Rxe7 Rxe7 30.b4 Nd7 31.Nd5 Bxd5 32.cxd5 Qb7 33.Rc1 Re8 34.Qa3 Ka7 35.
Rc6 Rc8 36.Bxa6 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.06"]
[Round "1"]
[White "Westerinen, Heikki"]
[Black "Knudsen, Per"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2390"]
[ECO "C14"]
[EventDate "1979.07.06"]
[PlyCount "118"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4 a6 8.Qd2 c5
9.Nf3 Nc6 10.g3 O-O 11.Bg2 f6 12.exf6 Nxf6 13.dxc5 Qxc5 14.O-O-O b5 15.Nd4
Bd7 16.Nxc6 Bxc6 17.Qd4 Qd6 18.Rhe1 b4 19.Ne4 Nxe4 20.Rxe4 a5 21.Re5 Rad8 
22.Rde1 Rf6 23.Bh3 Bd7 24.f5 exf5 25.Rxd5 Qc6 26.Bxf5 Rxf5 27.Rxf5 Qxc2+ 
28.Kxc2 Bxf5+ 29.Qe4 Bxe4+ 30.Rxe4 Rd5 31.Re7 h5 32.Ra7 Kh7 33.Ra6 g6 34.
Ra7+ Kh6 35.Rf7 Kg5 36.Rf2 Kg4 37.Kb3 g5 38.Kc4 Re5 39.Kd4 Re1 40.Kc4 Re5 
41.Kd4 Re1 42.Kc4 h4 43.gxh4 gxh4 44.Kb5 Re5+ 45.Ka4 Rd5 46.b3 Kh3 47.Rc2 
Rg5 48.Rc4 Rh5 49.Rc2 Rd5 50.Rc4 Rg5 51.Rd4 Rg4 52.Rc4 Rg2 53.Kxa5 Rxh2 
54.Kxb4 Rxa2 55.Rc8 Rf2 56.Rh8 Rf4+ 57.Kc5 Kg3 58.b4 h3 59.b5 Rh4 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Westerinen, Heikki"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2465"]
[ECO "C45"]
[EventDate "1979.07.06"]
[PlyCount "67"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.g3 d5 8.Bg2 
dxe4 9.Nd2 Bxd4 10.cxd4 Be6 11.Nxe4 Qg6 12.Nc5 Bd5 13.Bxd5 Nxd5 14.Qb3 
Nce7 15.Qxb7 O-O 16.Qa6 Nf5 17.Qxg6 fxg6 18.O-O Rfe8 19.Rfe1 Rab8 20.b3 
Ndxe3 21.fxe3 Nxe3 22.Na6 Nc2 23.Nxb8 Rxb8 24.Kf2 a5 25.Rab1 Nxe1 26.Kxe1 
Rb4 27.Rc1 Rxd4 28.Rxc7 Rd5 29.Rb7 Rh5 30.h4 Re5+ 31.Kd2 g5 32.a4 gxh4 33.
gxh4 Kf8 34.Kc3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2310"]
[BlackElo "2490"]
[ECO "B08"]
[EventDate "1979.07.06"]
[PlyCount "85"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Be2 Nf6 5.Nc3 O-O 6.O-O c6 7.a4 a5 8.h3 Na6 9.
Be3 Nb4 10.Nd2 d5 11.e5 Ne8 12.f4 f5 13.Ncb1 Nc7 14.c3 Nba6 15.Na3 b6 16.
Nc2 Ne6 17.b4 axb4 18.cxb4 c5 19.b5 Nac7 20.Nb3 c4 21.Nd2 g5 22.g3 gxf4 
23.gxf4 Bh6 24.Kh2 Kh8 25.Qe1 Rg8 26.Qh4 Qf8 27.Bf3 Rb8 28.Nb4 Bb7 29.Nb1 
Nxd4 30.Bxd4 Ne6 31.Be3 d4 32.Bc1 Bxf3 33.Rxf3 Qg7 34.Qf2 Ra8 35.Raa3 c3 
36.Nd3 Qf7 37.Qh4 Rg6 38.Rg3 Rag8 39.Rxg6 Qxg6 40.Qf2 Qh5 41.Nxc3 dxc3 42.
Rxc3 Rd8 43.Qxb6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Mortensen, Erling"]
[Black "Fedder, Steen"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2415"]
[ECO "D74"]
[EventDate "1979.07.06"]
[PlyCount "68"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 c6 6.Nf3 Bg7 7.O-O O-O 8.d4 
Nd7 9.e4 Nxc3 10.bxc3 Qa5 11.Qb3 c5 12.Ba3 e5 13.d5 Nb6 14.Rfc1 Bd7 15.c4 
Nc8 16.Bb2 f6 17.Bc3 Qa4 18.Nd2 Nd6 19.f4 Rae8 20.Rf1 Bh6 21.h4 Qa6 22.Kh2
Bg7 23.fxe5 fxe5 24.a4 Bg4 25.Rae1 Rxf1 26.Bxf1 Rf8 27.Bd3 g5 28.hxg5 Nf7 
29.Be2 Bxe2 30.Rxe2 Nxg5 31.Kg1 Qg6 32.Bb2 Nh3+ 33.Kh1 Qh5 34.Rh2 Nf2+ 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Oest-Hansen, Jacob"]
[Black "Kristiansen, Jens"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2365"]
[ECO "B25"]
[EventDate "1979.07.06"]
[PlyCount "27"]

1.e4 c5 2.d3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nc3 d6 6.Nh3 e5 7.f4 Nge7 8.O-O exf4 
9.Bxf4 h6 10.Be3 g5 11.Qh5 Ne5 12.Nf2 Be6 13.Bh3 Qd7 14.Bxe6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Sloth, Joern"]
[Black "Mestel, Andrew Jonathan"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2475"]
[ECO "A26"]
[EventDate "1979.07.06"]
[PlyCount "72"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.d3 f5 6.e4 Nc6 7.Nge2 Nf6 8.O-O O-O 
9.Nd5 Nxd5 10.cxd5 Ne7 11.Be3 c6 12.dxc6 bxc6 13.Qb3+ Kh8 14.Rac1 h6 15.f4
Kh7 16.fxe5 Bxe5 17.Nf4 fxe4 18.dxe4 Rf6 19.Nd3 Be6 20.Qa3 Rxf1+ 21.Rxf1 
Bg7 22.Rd1 Bg8 23.Rd2 a5 24.Nf2 Nc8 25.Qa4 Nb6 26.Bxb6 Qxb6 27.e5 d5 28.
Re2 Re8 29.Qf4 Rf8 30.Qe3 d4 31.Qd3 Bxa2 32.Ng4 c5 33.Rd2 Be6 34.Bh3 h5 
35.Nf6+ Bxf6 36.Bxe6 Bg5 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.07"]
[Round "2"]
[White "Vadasz, Laszlo"]
[Black "Hartston, William Roland"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2485"]
[ECO "A49"]
[EventDate "1979.07.06"]
[PlyCount "69"]

1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6 6.d4 c5 7.O-O cxd4 8.Nxd4 d5
9.c4 dxc4 10.bxc4 Na6 11.Nc3 Nd7 12.e3 Ndc5 13.Qe2 Bd7 14.Rfd1 Qc8 15.Nd5 
Re8 16.Nb5 Bg4 17.f3 Bxb2 18.Qxb2 Be6 19.a4 Nd7 20.h4 Qc5 21.Nd4 Nb6 22.
Nxb6 axb6 23.f4 Bg4 24.Re1 e5 25.fxe5 Qxe5 26.Bxb7 Qxg3+ 27.Qg2 Qxg2+ 28.
Kxg2 Ra7 29.Bc6 Rb8 30.Kg3 h5 31.a5 Nc5 32.Reb1 Ra6 33.Rb5 Nd7 34.Rab1 Ne5
35.Rxe5 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.10"]
[Round "2"]
[White "Knudsen, Per"]
[Black "Reshevsky, Samuel"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2485"]
[ECO "E68"]
[EventDate "1979.07.06"]
[PlyCount "96"]

1.Nf3 Nf6 2.c4 d6 3.d4 g6 4.Nc3 Bg7 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 
9.Rb1 a5 10.b3 Re8 11.Re1 exd4 12.Nxd4 Ng4 13.f3 Qb6 14.Ne2 Nge5 15.Be3 
Nc5 16.Qd2 Qb4 17.Nc3 a4 18.a3 Qxa3 19.Nc2 Qxb3 20.Rxb3 Nxb3 21.Qe2 Be6 
22.Nd5 cxd5 23.cxd5 Bd7 24.Na3 Rec8 25.h3 b5 26.Nxb5 Nc4 27.Na7 Nxe3 28.
Nxc8 Rxc8 29.Qa6 Bd4 30.Kh1 Rc2 31.Re2 Rc1+ 32.Kh2 Nc4 33.f4 h5 34.Qb7 Nc5
35.Qb8+ Kg7 36.e5 Bg1+ 37.Kh1 Ne4 38.Bf1 Rxf1 39.Kg2 Ne3+ 40.Rxe3 Bxh3+ 
41.Kxh3 Bxe3 42.e6 Rf3 43.Qb2+ f6 44.e7 Rxg3+ 45.Kh2 Bxf4 46.Kh1 Kf7 47.
Qb7 Nf2+ 48.Kh2 Rg4# 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Fedder, Steen"]
[Black "Sloth, Joern"]
[Result "1-0"]
[WhiteElo "2415"]
[BlackElo "2400"]
[ECO "C17"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.Nb5 Bxd2+ 7.Qxd2 O-O 8.c3 
Bd7 9.dxc5 Bxb5 10.Bxb5 Nd7 11.Nf3 Nxc5 12.O-O Qb6 13.Nd4 Rac8 14.Rfe1 Ng6
15.f3 a6 16.Bf1 f6 17.exf6 e5 18.fxg7 Kxg7 19.Kh1 exd4 20.Qxd4+ Qf6 21.
Rad1 Qxd4 22.Rxd4 Rcd8 23.Red1 Rf5 24.Kg1 Kf6 25.Kf2 b5 26.g3 Ne5 27.Be2 
Nc6 28.Rh4 Kg7 29.Kg2 Re8 30.Rd2 h6 31.Bd1 Rd8 32.Bc2 Rf6 33.Rh5 Ne7 34.
Re5 Rd7 35.g4 Re6 36.Rxe6 Nxe6 37.a4 Rd6 38.axb5 axb5 39.Kg3 Nc6 40.h4 Kf6
1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Hartston, William Roland"]
[Black "Mortensen, Erling"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2365"]
[ECO "E51"]
[EventDate "1979.07.06"]
[PlyCount "136"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.a3 Bxc3+ 6.bxc3 c5 7.e3 O-O 8.a4 Qa5
9.Qc2 cxd4 10.exd4 Nc6 11.Be2 dxc4 12.Bxc4 e5 13.O-O exd4 14.Nxd4 Nxd4 15.
cxd4 Be6 16.Bxe6 fxe6 17.Rb1 Rf7 18.Rb5 Qd8 19.Qb3 Qd7 20.Re5 Nd5 21.Rfe1 
Rc8 22.Bd2 Rf6 23.h4 h6 24.a5 b6 25.axb6 axb6 26.Qh3 Rc2 27.Qd3 Ra2 28.
R5e2 b5 29.g4 Nf4 30.Bxf4 Rxe2 31.Rxe2 Rxf4 32.Re4 Rf8 33.g5 hxg5 34.hxg5 
Rf5 35.Rg4 g6 36.Qg3 Rd5 37.Rh4 Qd8 38.Rg4 b4 39.Qd3 Kg7 40.Qe3 Qd6 41.Qh3
Qf8 42.Kf1 Rf5 43.Rh4 Qg8 44.d5 Rxd5 45.Rxb4 Rxg5 46.Rb7+ Kf6 47.f4 Rd5 
48.Qh4+ g5 49.Qh6+ Kf5 50.Rg7 Qd8 51.Rxg5+ Ke4 52.Qxe6+ Kd4 53.Rg2 Qd6 54.
Rd2+ Kc5 55.Qc8+ Kb6 56.Rb2+ Rb5 57.Rxb5+ Kxb5 58.Qf5+ Kc6 59.Ke2 Qd5 60.
Qc2+ Kd6 61.Kf2 Ke7 62.Qh7+ Qf7 63.Qe4+ Qe6 64.Qd4 Kf7 65.Qc3 Qe4 66.Kg3 
Qg6+ 67.Kf3 Qh5+ 68.Ke4 Qg6+ 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Kristiansen, Jens"]
[Black "Knudsen, Per"]
[Result "1-0"]
[WhiteElo "2365"]
[BlackElo "2390"]
[ECO "C05"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 
Bb4+ 9.Bd2 Qb6 10.Bxb4 Qxb4+ 11.Qd2 Qxd2+ 12.Kxd2 f6 13.Bd3 g5 14.exf6 g4 
15.Ne5 Nxd4 16.Nxg4 O-O 17.Nf3 Nc6 18.Ng5 Nxf6 19.Nxf6+ Rxf6 20.Bxh7+ Kg7 
21.Raf1 Bd7 22.Bb1 Re8 23.h4 Nd4 24.g3 Bb5 25.Re1 a5 26.Bd3 Bxd3 27.Kxd3 
Nc6 28.Rhf1 e5 29.fxe5 Nxe5+ 30.Kd4 Nc6+ 31.Kxd5 Nb4+ 32.Kc4 b5+ 33.Kxb5 
Rb8+ 34.Ka4 Rd6 35.Re6 Rd7 36.h5 Nd5 37.Rg6+ Kh8 38.Nf7+ Kh7 39.Ng5+ Kh8 
40.Rf7 Nb6+ 41.Rxb6 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Mestel, Andrew Jonathan"]
[Black "Oest-Hansen, Jacob"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2380"]
[ECO "A55"]
[EventDate "1979.07.06"]
[PlyCount "69"]

1.e4 c6 2.c4 e5 3.Nf3 d6 4.d4 Nd7 5.Nc3 Ngf6 6.Be2 g6 7.Bg5 h6 8.Bh4 Bg7 
9.d5 Qc7 10.Nd2 a6 11.b4 c5 12.a3 b6 13.Rb1 Nh7 14.Na4 h5 15.f3 Bf6 16.Bf2
Bg5 17.Nb3 O-O 18.O-O f5 19.Qd3 fxe4 20.Qxe4 Kg7 21.Bd3 Rf6 22.bxc5 bxc5 
23.Be1 Ndf8 24.Na5 Rb8 25.Rxb8 Qxb8 26.Bc3 Bd7 27.Rb1 Qe8 28.Rb7 Kh6 29.
Nb6 Bf5 30.Qe2 Bxd3 31.Qxd3 Rf4 32.Nc6 h4 33.Qe2 Rf5 34.Rc7 Bf4 35.g3 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Reshevsky, Samuel"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2430"]
[ECO "D20"]
[EventDate "1979.07.06"]
[PlyCount "121"]

1.c4 Nf6 2.Nc3 d5 3.d4 dxc4 4.e4 e5 5.Nf3 exd4 6.Bxc4 Nc6 7.Nd5 Bg4 8.Qb3 
Na5 9.Qa4+ c6 10.Nxf6+ gxf6 11.Bd3 b5 12.Qc2 Bb4+ 13.Nd2 Be6 14.O-O Qd6 
15.f4 Qc5 16.Qd1 Nc4 17.Nf3 Ne3 18.Bxe3 dxe3 19.Qe2 Rd8 20.Rfd1 Rg8 21.f5 
Bc4 22.Bxc4 Rxd1+ 23.Rxd1 Qxc4 24.Qxc4 bxc4 25.Rc1 e2 26.Kf2 Bc5+ 27.Kxe2 
Rxg2+ 28.Kd1 Rxb2 29.Rxc4 Bb6 30.Rc2 Rb1+ 31.Ke2 Kd7 32.Kd3 Rf1 33.Nd2 Rf2
34.Nc4 Rf3+ 35.Ke2 Rh3 36.Kf1 Bc7 37.Kg1 c5 38.Re2 Be5 39.Rc2 Kc6 40.a4 h5
41.Na5+ Kd7 42.Rxc5 Bd4+ 43.Kg2 Rxh2+ 44.Kxh2 Bxc5 45.Kg3 Bb6 46.Nb3 Kd6 
47.a5 Be3 48.Kf3 Bh6 49.a6 Bg5 50.Na5 Bh6 51.Kg3 Kc7 52.Nc4 Kc6 53.e5 Kd5 
54.Nb6+ Kxe5 55.Kf3 Kd6 56.Nc8+ Kc7 57.Nxa7 Kb6 58.Nb5 Kxa6 59.Nd6 Bf8 60.
Nxf7 Kb5 61.Kg3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Sigurjonsson, Gudmundur"]
[Black "Vadasz, Laszlo"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2490"]
[ECO "B18"]
[EventDate "1979.07.06"]
[PlyCount "84"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 Ngf6 8.O-O
e6 9.Re1 Be7 10.c4 O-O 11.Bxg6 hxg6 12.b3 a5 13.Bb2 a4 14.Qc2 Bb4 15.Re2 
Qb6 16.Rd1 axb3 17.axb3 Rfd8 18.h4 Qa5 19.Ng5 Bd6 20.Rd3 b5 21.Rf3 bxc4 
22.bxc4 Rdb8 23.c5 Bxg3 24.Rxg3 Qa4 25.Qc1 Rb3 26.Ree3 Rxe3 27.Rxe3 Rb8 
28.Ra3 Qb5 29.Bc3 Nd5 30.Ra7 Nf8 31.Bd2 Qd3 32.Ra3 Qxd4 33.Nf3 Qe4 34.Ra1 
f6 35.Qa3 e5 36.Qa6 Nc7 37.Qa2+ Qd5 38.Be3 Qxa2 39.Rxa2 Nfe6 40.Kf1 Nd5 
41.Ra6 Rc8 42.Ra5 Nd8 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.08"]
[Round "3"]
[White "Westerinen, Heikki"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2310"]
[ECO "B09"]
[EventDate "1979.07.06"]
[PlyCount "79"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3 Na6 7.Qe2 c5 8.O-O-O 
Qa5 9.e5 Nh5 10.Qb5 Qxb5 11.Bxb5 cxd4 12.Rxd4 Bg4 13.Nd5 Bxf3 14.Nxe7+ Kh8
15.gxf3 dxe5 16.fxe5 Nc7 17.Bc4 Bxe5 18.Re4 Bg7 19.Bc5 Ne6 20.Bb4 Nf6 21.
Ree1 Nd4 22.Rhf1 b5 23.Bd3 Rfd8 24.Be4 Nxe4 25.fxe4 a5 26.Bc3 b4 27.Bxd4 
Rxd4 28.Rxf7 Bh6+ 29.Kb1 Bd2 30.Rd1 Rxe4 31.a4 Re2 32.h4 b3 33.cxb3 Rb8 
34.Nd5 Bh6 35.Nc3 Rd2 36.Rxd2 Bxd2 37.Ne4 Bh6 38.Ra7 Rb4 39.Nf6 Rxh4 40.
Rxh7# 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Kristiansen, Jens"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2365"]
[ECO "B22"]
[EventDate "1979.07.06"]
[PlyCount "89"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Nf3 Nc6 6.cxd4 d6 7.Bc4 Nb6 8.Bb5 d5
9.Nc3 Bg4 10.h3 Bxf3 11.Qxf3 e6 12.O-O a6 13.Bxc6+ bxc6 14.Be3 Be7 15.Qg4 
Kf8 16.Rac1 h5 17.Qd1 g6 18.Ne2 Qc7 19.Nf4 Kg7 20.Nd3 a5 21.a4 Nd7 22.Rc3 
Rhc8 23.Qe2 Rab8 24.Rfc1 Rb6 25.g4 hxg4 26.hxg4 Qb7 27.f3 Rb3 28.Qc2 Rxc3 
29.Qxc3 Qb6 30.Kg2 Qa6 31.Kg3 Rh8 32.Kg2 Nb6 33.b3 Nd7 34.Qd2 Qb6 35.Rc3 
Rc8 36.Qc1 Kg8 37.Bf2 Kg7 38.f4 f5 39.exf6+ Nxf6 40.Ne5 Rb8 41.Rh3 Rb7 42.
f5 Ng8 43.fxg6 Bf6 44.Rh7+ Kf8 45.Nd7+ 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Vadasz, Laszlo"]
[Result "0-1"]
[WhiteElo "2310"]
[BlackElo "2490"]
[ECO "A05"]
[EventDate "1979.07.06"]
[PlyCount "66"]

1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.O-O e6 5.d3 Be7 6.e4 d6 7.Nbd2 O-O 8.Re1 c5 
9.a4 a6 10.axb5 axb5 11.Rxa8 Bxa8 12.c3 Nbd7 13.d4 cxd4 14.cxd4 Qc7 15.Bf1
Rc8 16.Bd3 h6 17.Qe2 b4 18.Nb3 Qa7 19.h3 Qa2 20.Nbd2 Bb7 21.Kh2 Nb6 22.Bb1
Qa5 23.e5 dxe5 24.dxe5 Ba6 25.Bd3 Bxd3 26.Qxd3 Nfd7 27.Nb3 Qd5 28.Nbd4 Nc4
29.Qc2 Rc5 30.Qa4 Ncxe5 31.Be3 Ra5 32.Qd1 Bc5 33.Nxe5 Nxe5 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Knudsen, Per"]
[Black "Mestel, Andrew Jonathan"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2475"]
[ECO "A41"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.Nf3 g6 2.c4 Bg7 3.d4 d6 4.Nc3 Bg4 5.g3 Bxf3 6.exf3 Nf6 7.Qb3 Qc8 8.Bg2 
O-O 9.O-O Nbd7 10.Re1 Re8 11.Bh3 c6 12.d5 Qc7 13.f4 Nc5 14.Qc2 b5 15.b4 
Na6 16.Rb1 cxd5 17.cxb5 d4 18.bxa6 dxc3 19.Bg2 d5 20.Be3 e6 21.Bd4 Nd7 22.
Bxg7 Kxg7 23.Rb3 Rac8 24.Rc1 d4 25.Qd3 Qc4 26.Qxc4 Rxc4 27.Bf1 Rcc8 28.a4 
e5 29.fxe5 Nxe5 30.Kg2 Red8 31.b5 Nc4 32.Bd3 Nb2 33.Bb1 Nxa4 34.Ra3 Nb6 
35.Bd3 Nc4 36.Rb3 Ne5 37.Be4 Rc7 38.f4 Nc4 39.Bd3 Nb6 40.Re1 Na4 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Mortensen, Erling"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2490"]
[ECO "B13"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.cxd5 Nf6 5.Nc3 Nxd5 6.Nf3 Nc6 7.d4 Bg4 8.Be2
e6 9.h3 Bh5 10.O-O Be7 11.Qb3 Qb6 12.Nxd5 Qxb3 13.axb3 exd5 14.Be3 Bd6 15.
g4 Bg6 16.Ne5 Bxe5 17.dxe5 d4 18.Bd2 O-O-O 19.f4 Be4 20.Bf3 Bxf3 21.Rxf3 
h5 22.Kg2 hxg4 23.hxg4 Rh4 24.Kg3 Rdh8 25.Rg1 Rh2 26.Rg2 Rh1 27.b4 a6 28.
Kf2 Kc7 29.Ke2 R8h3 30.Rgg3 R3h2+ 31.Rf2 Kb6 32.Rxh2 Rxh2+ 33.Kd3 Kb5 34.
b3 g6 35.Rg1 g5 36.Rf1 Rg2 37.fxg5 Rxg4 38.Rf5 Kb6 39.Bf4 Rg1 40.Rxf7 Rxg5
41.Bxg5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Oest-Hansen, Jacob"]
[Black "Fedder, Steen"]
[Result "1-0"]
[WhiteElo "2380"]
[BlackElo "2415"]
[ECO "B01"]
[EventDate "1979.07.06"]
[PlyCount "62"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 c6 6.Ne5 Bf5 7.Bd3 Bxd3 8.
Qxd3 e6 9.O-O Na6 10.Bf4 Nb4 11.Qd2 Be7 12.a3 Na6 13.b4 Qd8 14.Rad1 Rc8 
15.Ne2 O-O 16.c4 Nc7 17.Qc3 Nce8 18.Qf3 Nd6 19.Ng3 a5 20.c5 Nb5 21.a4 Nc7 
22.bxa5 Ncd5 23.Bd2 Nd7 24.Nc4 Bf6 25.Qe4 e5 26.dxe5 Nxc5 27.Qg4 Be7 28.
Bh6 g6 29.Bxf8 Bxf8 30.Nb6 Rc7 31.Nh5 Nd7 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Sloth, Joern"]
[Black "Hartston, William Roland"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2485"]
[ECO "A30"]
[EventDate "1979.07.06"]
[PlyCount "25"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 Na6 
9.d4 d5 10.dxc5 Nxc5 11.Nxd5 Nxd5 12.Bxg7 Kxg7 13.cxd5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.09"]
[Round "4"]
[White "Westerinen, Heikki"]
[Black "Reshevsky, Samuel"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2485"]
[ECO "C94"]
[EventDate "1979.07.06"]
[PlyCount "24"]

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 Nbd7 11.Nbd2 Bb7 12.Nf1 Nc5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Fedder, Steen"]
[Black "Knudsen, Per"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2390"]
[ECO "B08"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.d4 c5 2.dxc5 Qa5+ 3.Nc3 Qxc5 4.e4 Nf6 5.Nf3 d6 6.Be2 g6 7.O-O Bg7 8.Nd2 
Bd7 9.Nb3 Qc8 10.Bg5 Nc6 11.Qd2 O-O 12.Rad1 Be6 13.f4 Rd8 14.Bf3 Bc4 15.
Rfe1 e6 16.Qf2 h6 17.Bh4 Rd7 18.f5 g5 19.fxe6 fxe6 20.Bg3 Qf8 21.Be2 Bxe2 
22.Qxe2 Rad8 23.Rd3 d5 24.Rf1 Rf7 25.Rdf3 Rdd7 26.exd5 exd5 27.Qd3 a6 28.
Ne2 Nb4 29.Qd1 Nc6 30.c3 Qd8 31.Kh1 Ne4 32.Rxf7 Rxf7 33.Rxf7 Kxf7 34.Qf1+ 
Qf6 35.Qxf6+ Bxf6 36.Be1 Ke6 37.g4 b5 38.Kg2 b4 39.cxb4 Bxb2 40.a4 Ne5 41.
Ng3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Hartston, William Roland"]
[Black "Oest-Hansen, Jacob"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2380"]
[ECO "E61"]
[EventDate "1979.07.06"]
[PlyCount "93"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg5 c5 6.e3 Qa5 7.Qd2 d6 8.Be2 Nbd7
9.O-O h6 10.Bh4 g5 11.Bg3 Nh5 12.a3 cxd4 13.Nxd4 Nxg3 14.hxg3 Ne5 15.b4 
Qd8 16.f4 Nc6 17.Nf3 Bg4 18.Rac1 Qd7 19.Rfd1 Rad8 20.Nd5 b6 21.Kf2 e6 22.
Nc3 Qe7 23.Bd3 f5 24.Rh1 Rf7 25.Bc2 Qf6 26.Ba4 Ne7 27.Ne5 dxe5 28.Qxd8+ 
Rf8 29.Qd2 Ng6 30.Bd7 Qe7 31.fxg5 hxg5 32.Nb5 f4 33.c5 bxc5 34.bxc5 e4 35.
Bc6 fxg3+ 36.Kxg3 Bf5 37.Nd6 g4 38.Kh2 Qc7 39.Bb5 Ne5 40.Kg1 Rd8 41.Qc2 
Rb8 42.Nxf5 exf5 43.Bc4+ Kf8 44.Rh5 Ke7 45.Rxf5 Qc6 46.Qf2 Qh6 47.Rxe5+ 
1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Kristiansen, Jens"]
[Black "Westerinen, Heikki"]
[Result "1-0"]
[WhiteElo "2365"]
[BlackElo "2465"]
[ECO "C84"]
[EventDate "1979.07.06"]
[PlyCount "103"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.O-O Be7 7.Re1 O-O 8.e5 
Ne8 9.Bf4 d5 10.Bxc6 bxc6 11.Nxd4 Bd7 12.Nb3 g6 13.Nc3 Ng7 14.Na4 Qb8 15.
Be3 Rd8 16.Nac5 a5 17.a4 Nf5 18.Qd2 Be6 19.Bg5 Bxg5 20.Qxg5 Qb4 21.Rad1 
Rdb8 22.Qf6 Re8 23.Qg5 Reb8 24.h3 Rb6 25.Qf6 Qh4 26.Nxe6 Qxf6 27.exf6 fxe6
28.Rxe6 Kf7 29.Nc5 Rd8 30.g4 Nh4 31.Re7+ Kxf6 32.Rxh7 Nf3+ 33.Kg2 Ng5 34.
Rxc7 Ne6 35.Nxe6 Kxe6 36.b3 d4 37.Re1+ Kd5 38.Rg7 d3 39.cxd3 c5 40.Ree7 
Rdd6 41.Rd7 Rxd7 42.Rxd7+ Ke5 43.Ra7 Rxb3 44.Rxa5 Kd4 45.g5 Rxd3 46.Ra6 
Ke4 47.Rxg6 Rd5 48.h4 c4 49.Rc6 Kd3 50.g6 c3 51.g7 Rd8 52.h5 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Mestel, Andrew Jonathan"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2430"]
[ECO "C85"]
[EventDate "1979.07.06"]
[PlyCount "65"]

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 Bf6 10.Bd2 Re8 11.Bc3 c5 12.a4 Rb8 13.h3 b5 14.axb5 axb5 15.Ne3 
Nb6 16.b3 Bb7 17.Ra5 Bc6 18.Ng4 Qd6 19.Nxf6+ gxf6 20.Nh4 Bd7 21.Qh5 c4 22.
bxc4 Na4 23.Ba1 Qb6 24.Rxb5 Bxb5 25.Nf5 Kh8 26.Qxf7 Rg8 27.cxb5 Rbf8 28.
Qc4 Nc5 29.d4 Ne6 30.dxe5 Nf4 31.g3 Nxh3+ 32.Kg2 Nf4+ 33.Kf3 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Reshevsky, Samuel"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2310"]
[ECO "D97"]
[EventDate "1979.07.06"]
[PlyCount "83"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Qb3 b5
9.e5 Nfd7 10.e6 fxe6 11.Qxe6+ Kh8 12.Qe4 Nb6 13.Qh4 Nc6 14.Bh6 e5 15.Ng5 
Qe7 16.Bxg7+ Qxg7 17.dxe5 Nxe5 18.Be2 Bb7 19.O-O Rae8 20.Rad1 Nec4 21.Bxc4
Nxc4 22.b3 Nd6 23.Nd5 Nf5 24.Qb4 h6 25.Ne4 a5 26.Qxa5 Bxd5 27.Rxd5 Rxe4 
28.Qxb5 Nd6 29.Qd3 Rfe8 30.g3 h5 31.h4 Nf5 32.Rd7 Qe5 33.Rc1 c5 34.Qd5 
Qxd5 35.Rxd5 Re1+ 36.Rxe1 Rxe1+ 37.Kg2 Rc1 38.a4 Rc3 39.a5 Rxb3 40.Rxc5 
Ra3 41.Rc6 Kg7 42.a6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Sigurjonsson, Gudmundur"]
[Black "Sloth, Joern"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2400"]
[ECO "A49"]
[EventDate "1979.07.06"]
[PlyCount "36"]

1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 d6 5.d4 c5 6.Bg2 cxd4 7.Nxd4 d5 8.O-O O-O
9.Na3 Re8 10.Nf3 Nc6 11.Ne5 Nxe5 12.Bxe5 Qa5 13.Qc1 Bg4 14.c4 dxc4 15.Nxc4
Qa6 16.Qb2 Rac8 17.Rfd1 Red8 18.Rac1 Be6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.11"]
[Round "5"]
[White "Vadasz, Laszlo"]
[Black "Mortensen, Erling"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2365"]
[ECO "E02"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 Bd7 8.Qxc4 
Bc6 9.Nc3 Nbd7 10.Qd3 Bb4 11.a3 Bxc3 12.Qxc3 a5 13.b3 Be4 14.Bb2 a4 15.b4 
Nd5 16.Qd2 b5 17.Rac1 N7b6 18.Rc5 Nc4 19.Qc1 Qe8 20.Nd2 Nxd2 21.Qxd2 Bxg2 
22.Kxg2 Ra7 23.Rfc1 Nb6 24.Rxc7 Qa8+ 25.f3 Nc4 26.Rxa7 Qxa7 27.Qc3 f5 28.
Rd1 e5 29.Bc1 e4 30.d5 Re8 31.Qd4 Qd7 32.d6 h6 33.f4 Kh7 34.Qc5 Rc8 35.Qd5
h5 36.h3 Re8 37.g4 g6 38.gxh5 gxh5 39.Kf2 Rg8 40.Be3 Rg2+ 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Fedder, Steen"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2415"]
[ECO "B22"]
[EventDate "1979.07.06"]
[PlyCount "55"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 f5 8.Qe2 Be7
9.g3 O-O 10.Bg2 b5 11.Qxb5 a5 12.Qe2 a4 13.O-O Qa5 14.Rd1 Ba6 15.Qe1 Rab8 
16.Bf1 Rfc8 17.Nbd2 Bxf1 18.Qxf1 a3 19.Nb3 Qa4 20.c4 Nb6 21.bxa3 Nxc4 22.
Rxd7 Bf8 23.Bf4 Nxa3 24.Qd1 Nb5 25.Ng5 Nc3 26.Qh5 h6 27.Nc5 Qc4 28.Ncxe6 
1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Mortensen, Erling"]
[Result "0-1"]
[WhiteElo "2310"]
[BlackElo "2365"]
[ECO "C00"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Nbd2 Nf6 6.Bg2 Be7 7.O-O a5 8.exd5 
exd5 9.d4 a4 10.dxc5 O-O 11.Ne1 Bxc5 12.Nd3 Bb6 13.Nf3 Bf5 14.a3 h6 15.Bd2
Re8 16.Rc1 Qd7 17.Bc3 Ne4 18.Be1 Bg4 19.Nf4 Rad8 20.c3 d4 21.Qxa4 g5 22.
Qb3 Ba7 23.Nd3 dxc3 24.Nb4 Qf5 25.Nxc6 bxc6 26.Rxc3 Nxc3 27.Qxc3 Re6 28.
Qa5 Qxa5 29.Bxa5 Rd3 30.Nd2 Bd4 31.Ne4 Bf3 32.Bxf3 Rxf3 33.Nd2 Rxf2 34.
Rxf2 Re2 35.Ne4 Rxe4 36.Bc3 Bxf2+ 37.Kxf2 f5 38.b3 Kf7 39.a4 Ke6 40.a5 Kd7
0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Knudsen, Per"]
[Black "Hartston, William Roland"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2485"]
[ECO "A16"]
[EventDate "1979.07.06"]
[PlyCount "64"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d5 6.cxd5 Nxd5 7.Nc3 Nc6 8.Nxd5
Qxd5 9.d3 e5 10.Ng5 Qd6 11.Ne4 Qe7 12.Bd2 f5 13.Nc3 Be6 14.Rc1 Rad8 15.Qa4
Rd4 16.Qa3 Qf7 17.Be3 Rd7 18.b4 Nd4 19.Qxa7 c6 20.Qa3 g5 21.Qb2 Qh5 22.
Rfe1 Rf6 23.h3 Rh6 24.f3 e4 25.f4 g4 26.h4 exd3 27.exd3 Nf3+ 28.Bxf3 gxf3 
29.Rcd1 Qg4 30.Kf2 Rxh4 31.Rh1 Rxh1 32.Rxh1 Rxd3 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Oest-Hansen, Jacob"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2380"]
[BlackElo "2490"]
[ECO "B25"]
[EventDate "1979.07.06"]
[PlyCount "55"]

1.e4 c5 2.d3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nc3 d6 6.Nh3 e6 7.O-O Nge7 8.Be3 Rb8 
9.Qd2 h6 10.Rab1 b5 11.a3 a5 12.a4 bxa4 13.Nxa4 Nd4 14.b3 Bd7 15.Nb2 Nb5 
16.Nd1 Na3 17.Rc1 a4 18.bxa4 Nb1 19.Qe2 Bxa4 20.f4 O-O 21.g4 f5 22.gxf5 
exf5 23.e5 Qc7 24.c3 d5 25.Qa2 Bb3 26.Qf2 c4 27.Rxb1 cxd3 28.Bc5 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Reshevsky, Samuel"]
[Black "Kristiansen, Jens"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2365"]
[ECO "E55"]
[EventDate "1979.07.06"]
[PlyCount "33"]

1.c4 e6 2.Nc3 Nf6 3.d4 Bb4 4.e3 O-O 5.Nf3 b6 6.Bd3 Bb7 7.a3 Bxc3+ 8.bxc3 
d5 9.O-O dxc4 10.Bxc4 Nbd7 11.a4 c5 12.Be2 Qc7 13.h3 Ne4 14.Bb2 c4 15.Nd2 
Nxd2 16.Qxd2 f5 17.f3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.12"]
[Round "6"]
[White "Sloth, Joern"]
[Black "Vadasz, Laszlo"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2490"]
[ECO "A30"]
[EventDate "1979.07.06"]
[PlyCount "112"]

1.c4 c5 2.Nf3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc6 6.d4 Bf5 7.dxc5 Ndb4 8.
Qxd8+ Rxd8 9.Na3 g6 10.Bd2 Bg7 11.Bc3 Bxc3+ 12.bxc3 Na6 13.Nd4 Nxd4 14.
cxd4 Rxd4 15.Bxb7 Nxc5 16.Nb5 Ra4 17.Bc6+ Kf8 18.Rc1 Ne6 19.f3 h5 20.Nc3 
Ra3 21.Bd5 Kg7 22.Bxe6 Bxe6 23.Rc2 Bf5 24.e4 Be6 25.Kd2 Rd8+ 26.Kc1 Rd3 
27.Kb2 Ra6 28.f4 Rb6+ 29.Ka1 Rc6 30.Rhc1 h4 31.Nb5 Rxc2 32.Rxc2 hxg3 33.
hxg3 Rxg3 34.Nxa7 Rf3 35.Nc6 Rxf4 36.e5 Bf5 37.Rd2 e6 38.Nd4 Re4 39.Nc6 
Re1+ 40.Kb2 Rb1+ 41.Ka3 Rb5 42.Rd7 g5 43.Nd8 Bg6 44.Nxe6+ Kh6 45.Nd4 Rxe5 
46.Kb2 g4 47.Kc1 g3 48.Nf3 Re3 49.Ng1 Kh5 50.Kd2 Re4 51.Rd3 Kg4 52.Re3 Rf4
53.Ne2 Rf3 54.a4 g2 55.a5 Rf2 56.Rg3+ Kh4 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Fedder, Steen"]
[Black "Westerinen, Heikki"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2465"]
[ECO "E91"]
[EventDate "1979.07.06"]
[PlyCount "78"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Nbd7 7.Nf3 h6 8.Be3 e5 
9.dxe5 dxe5 10.Nd2 c6 11.b4 Qe7 12.Rb1 Rd8 13.Qa4 Nf8 14.c5 Ne6 15.O-O Nd4
16.Rfc1 Be6 17.Qd1 Rd7 18.Qf1 Rf8 19.Bc4 Ng4 20.Bxe6 Nxe6 21.Nc4 f5 22.h3 
Nxe3 23.fxe3 f4 24.Rd1 fxe3 25.Qe2 Nf4 26.Qxe3 Qg5 27.Qf3 Nd5 28.Qd3 Nf4 
29.Qf3 Rd4 30.Rxd4 exd4 31.Ne2 Nd5 32.Qb3 Nf4 33.Nxf4 Qxf4 34.Nd2+ Kh7 35.
Qd3 Qf2+ 36.Kh1 Qe3 37.Qxe3 dxe3 38.Nf3 Re8 39.Kg1 Rxe4 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Hartston, William Roland"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2430"]
[ECO "D91"]
[EventDate "1979.07.06"]
[PlyCount "55"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 dxc4 6.e4 c5 7.d5 b5 8.e5 b4 9.
exf6 exf6 10.Qe2+ Kf8 11.Be3 bxc3 12.Bxc5+ Kg8 13.bxc3 Bb7 14.Rd1 Na6 15.
Be3 Nc7 16.Qb2 Ba6 17.d6 Ne6 18.Be2 f5 19.Qa3 Bb7 20.O-O f4 21.Bc1 Bf8 22.
Qb4 Ba6 23.Nd4 Nxd4 24.Rxd4 Bg7 25.Rdd1 Be5 26.Qc5 Bxc3 27.Bxf4 Kg7 28.Qe3
1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Kristiansen, Jens"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2310"]
[ECO "B08"]
[EventDate "1979.07.06"]
[PlyCount "64"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Bg4 7.Be3 Nbd7 8.h3 
Bxf3 9.Bxf3 c6 10.a4 Re8 11.g4 h6 12.Qd2 e5 13.Rad1 exd4 14.Bxd4 g5 15.Bg2
Nf8 16.Be3 Re6 17.e5 Rxe5 18.Qxd6 Qxd6 19.Rxd6 Ne6 20.Ne2 Bf8 21.Rd2 Bc5 
22.Bxc5 Rxc5 23.f4 Kg7 24.fxg5 hxg5 25.c3 a5 26.Ng3 Nf4 27.Rd6 Re8 28.Nf5+
Rxf5 29.gxf5 Re2 30.Rf2 Nxh3+ 31.Bxh3 Rxf2 32.Rxf6 Rd2 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Mestel, Andrew Jonathan"]
[Black "Reshevsky, Samuel"]
[Result "1/2-1/2"]
[WhiteElo "2475"]
[BlackElo "2485"]
[ECO "B20"]
[EventDate "1979.07.06"]
[PlyCount "27"]

1.g3 g6 2.Bg2 Bg7 3.e4 c5 4.Ne2 Nc6 5.c3 e5 6.d3 Nge7 7.a3 d5 8.exd5 Nxd5 
9.b4 cxb4 10.axb4 b5 11.O-O O-O 12.Ra3 Bf5 13.Qb3 Be6 14.Qd1 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Mortensen, Erling"]
[Black "Sloth, Joern"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2400"]
[ECO "E03"]
[EventDate "1979.07.06"]
[PlyCount "37"]

1.c4 e6 2.g3 Nf6 3.Bg2 d5 4.Nf3 dxc4 5.Qa4+ Nbd7 6.Qxc4 c5 7.O-O b6 8.d4 
Bb7 9.Nc3 a6 10.dxc5 b5 11.Qf4 Bxc5 12.Be3 Be7 13.Rfd1 Qb8 14.Qxb8+ Rxb8 
15.Rac1 O-O 16.Nd4 Bxg2 17.Kxg2 Rfc8 18.f3 Bc5 19.Bf2 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Sigurjonsson, Gudmundur"]
[Black "Knudsen, Per"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2390"]
[ECO "A07"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.Nf3 d5 2.g3 Nf6 3.Bg2 Bf5 4.O-O c6 5.b3 e6 6.Bb2 Nbd7 7.d3 Bc5 8.Nbd2 
O-O 9.e3 Re8 10.Qe2 e5 11.e4 dxe4 12.dxe4 Bg4 13.h3 Bh5 14.a4 a5 15.Rad1 
Qc7 16.Kh1 Rad8 17.Nc4 Bxf3 18.Bxf3 b5 19.axb5 cxb5 20.Na3 Bxa3 21.Bxa3 b4
22.Bb2 Rc8 23.Rd2 Nc5 24.Ra1 Ra8 25.Qc4 Ra7 26.Kg2 h6 27.Qb5 Rb8 28.Qc4 
Rb6 29.Rad1 Rc6 30.Qb5 Rb7 31.Qe2 a4 32.Rd8+ Kh7 33.Ra8 Ncd7 34.Rxa4 Rxc2 
35.Rd2 Rxd2 36.Qxd2 Nc5 37.Rxb4 Nxb3 38.Rxb7 Qxb7 39.Qd6 Nc5 40.Qxe5 Ncd7 
41.Qc3 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.13"]
[Round "7"]
[White "Vadasz, Laszlo"]
[Black "Oest-Hansen, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2380"]
[ECO "E69"]
[EventDate "1979.07.06"]
[PlyCount "84"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 Nbd7 7.Nc3 c6 8.e4 e5 
9.Rb1 a6 10.h3 Re8 11.Be3 b5 12.dxe5 dxe5 13.Qc2 Qc7 14.Nd2 Bf8 15.a3 b4 
16.axb4 Bxb4 17.Nb3 a5 18.Na4 c5 19.Nc3 Bxc3 20.Qxc3 Bb7 21.Nd2 Nf8 22.f4 
Nh5 23.Kh2 exf4 24.Bxf4 Nxf4 25.gxf4 Rad8 26.Rf2 Ne6 27.Qg3 Nxf4 28.Rd1 
Ne6 29.Qxc7 Nxc7 30.Ra1 Ra8 31.Nb3 Ne6 32.Rxa5 Rxa5 33.Nxa5 Ba8 34.Nb3 Rb8
35.Nc1 Rd8 36.Rc2 Nd4 37.Rc3 Re8 38.Nb3 Nxb3 39.Rxb3 Bxe4 40.Rb5 Bxg2 41.
Kxg2 Re4 42.Rxc5 Re2+ 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2490"]
[ECO "B22"]
[EventDate "1979.07.06"]
[PlyCount "45"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4 6.Be2 e6 7.h3 Bh5 8.O-O Nc6
9.Be3 cxd4 10.cxd4 Be7 11.Nc3 Qd6 12.Qd2 O-O 13.Rfd1 Rfd8 14.Rac1 Rac8 15.
a3 Qb8 16.b4 Bxf3 17.Bxf3 Nxd4 18.Bxd4 e5 19.Nd5 Nxd5 20.Rxc8 Qxc8 21.Bxe5
Nxb4 22.Qxd8+ Bxd8 23.Bxb7 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Sloth, Joern"]
[Result "0-1"]
[WhiteElo "2310"]
[BlackElo "2400"]
[ECO "B72"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Bd7 7.O-O g6 8.h3 
Bg7 9.Be3 O-O 10.Bb3 a6 11.f4 Nxd4 12.Bxd4 Bc6 13.f5 Nd7 14.h4 Bxd4+ 15.
Qxd4 Qa5 16.h5 Qe5 17.Qxe5 Nxe5 18.hxg6 hxg6 19.f6 e6 20.Rad1 Rfd8 21.Rd2 
Rd7 22.g3 b5 23.Rd4 g5 24.a4 Kh7 25.axb5 axb5 26.Rb4 Ra5 27.Ne2 Kg6 28.Nd4
d5 29.exd5 Bxd5 30.Bxd5 Rxd5 31.c3 Ra4 32.Rxa4 bxa4 33.Ra1 Nd3 34.Rxa4 
Nxb2 35.Ra2 Nd1 36.Ne2 Rd3 37.Rc2 Kxf6 38.c4 Ke7 39.c5 Kd7 40.c6+ Kc7 41.
Rc1 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Knudsen, Per"]
[Black "Vadasz, Laszlo"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2490"]
[ECO "A38"]
[EventDate "1979.07.06"]
[PlyCount "72"]

1.Nf3 Nf6 2.c4 c5 3.g3 Nc6 4.Bg2 d5 5.cxd5 Nxd5 6.Nc3 g6 7.O-O Bg7 8.d3 
O-O 9.Nxd5 Qxd5 10.Ng5 Qd7 11.Rb1 b6 12.a3 Bb7 13.b4 cxb4 14.axb4 Rad8 15.
Bb2 Bxb2 16.Rxb2 h6 17.Nf3 Nd4 18.Nxd4 Qxd4 19.Qd2 Bxg2 20.Kxg2 Rc8 21.Ra2
Rc7 22.Rfa1 Ra8 23.Qxh6 Qxb4 24.Ra4 Qc3 25.R1a3 Qc6+ 26.f3 Qf6 27.Rh4 Qg7 
28.Qe3 Rd8 29.Rha4 Rdd7 30.Qe4 Qb2 31.Kf2 Qc1 32.Qe5 Rc5 33.Qb8+ Rc8 34.
Qe5 Rc5 35.Qe4 Rcc7 36.Qe5 Rc5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Kristiansen, Jens"]
[Black "Mestel, Andrew Jonathan"]
[Result "1-0"]
[WhiteElo "2365"]
[BlackElo "2475"]
[ECO "B25"]
[EventDate "1979.07.06"]
[PlyCount "125"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 Rb8 6.f4 d6 7.Nh3 e6 8.O-O Nge7 
9.Be3 Nd4 10.Rb1 b5 11.Ne2 b4 12.Nxd4 cxd4 13.Bf2 Qa5 14.Ra1 Qc5 15.g4 h5 
16.g5 d5 17.Qd2 Bd7 18.Kh1 O-O 19.Ng1 Rfc8 20.Rfc1 e5 21.fxe5 Bxe5 22.Nf3 
Bg7 23.e5 Nc6 24.Nxd4 Bxe5 25.Nf3 d4 26.Nxe5 Nxe5 27.Qf4 Nc6 28.c3 Qe5 29.
Bg3 Rb5 30.Qxe5 Nxe5 31.cxd4 Nxd3 32.Rxc8+ Bxc8 33.d5 h4 34.Bxh4 Nf4 35.d6
Nxg2 36.Kxg2 Rd5 37.Rc1 Be6 38.Bg3 Rxg5 39.Rc7 Rd5 40.Rxa7 g5 41.b3 Kg7 
42.Kf3 Kg6 43.Ra6 Rd2 44.Ke3 Rd1 45.Rb6 f5 46.Ke2 Rd4 47.Bf2 Rd5 48.Be1 f4
49.Bxb4 Kf5 50.Rb8 g4 51.a4 f3+ 52.Kf2 Re5 53.Rb5 Rxb5 54.axb5 Bc8 55.Kg3 
Ke6 56.Bc5 Kd5 57.b4 Bd7 58.b6 Kc6 59.b5+ Kb7 60.Kf4 Bxb5 61.Kxg4 Kc6 62.
Kxf3 Kxc5 63.b7 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Oest-Hansen, Jacob"]
[Black "Mortensen, Erling"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2365"]
[ECO "A07"]
[EventDate "1979.07.06"]
[PlyCount "82"]

1.g3 e5 2.Bg2 Nf6 3.d3 d5 4.Nf3 Nbd7 5.O-O Be7 6.Nbd2 O-O 7.e4 dxe4 8.dxe4
c6 9.b3 Qc7 10.Bb2 Re8 11.Qe2 a5 12.a3 b6 13.Rfc1 Ba6 14.c4 Bf8 15.Bc3 Nc5
16.Rab1 Rad8 17.Ne1 h6 18.b4 axb4 19.axb4 Ne6 20.Ndf3 Nd4 21.Bxd4 exd4 22.
e5 Nd7 23.Nd3 c5 24.bxc5 Nxc5 25.Nfe1 Bc8 26.Bd5 Be6 27.Qa2 Bf5 28.Qd2 Bg6
29.f4 Ne4 30.Qg2 Nc3 31.Rb3 b5 32.cxb5 Rxd5 33.Rbxc3 dxc3 34.Qxd5 Rd8 35.
Qc6 Qa5 36.Rxc3 Be4 37.Qc7 Qxc7 38.Rxc7 Bxd3 39.Nxd3 Rxd3 40.b6 Rb3 41.b7 
Bc5+ 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.15"]
[Round "8"]
[White "Reshevsky, Samuel"]
[Black "Fedder, Steen"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2415"]
[ECO "A16"]
[EventDate "1979.07.06"]
[PlyCount "56"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 6.bxc3 Bg7 7.Nf3 Nd7 8.d4
c5 9.O-O Qa5 10.Qb3 O-O 11.Rd1 Nb6 12.Ne5 Be6 13.Qc2 Rac8 14.Bxb7 cxd4 15.
Bxc8 Rxc8 16.f4 dxc3 17.Be3 Bf5 18.Qb3 Bxe5 19.fxe5 c2 20.Re1 Rc3 21.Bxb6 
axb6 22.Qb2 Qc5+ 23.Kg2 Qc6+ 24.Kf2 Bh3 25.Rec1 Qg2+ 26.Ke1 Qg1+ 27.Kd2 
Qe3+ 28.Ke1 Rd3 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Fedder, Steen"]
[Black "Kristiansen, Jens"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2365"]
[ECO "A92"]
[EventDate "1979.07.06"]
[PlyCount "41"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.c4 Be7 5.Nf3 O-O 6.O-O d5 7.Qc2 c6 8.Nbd2 Qe8 
9.Ne5 b6 10.Nd3 Bb7 11.b4 Nbd7 12.Rb1 Ne4 13.a4 Bf6 14.Nf3 Rc8 15.c5 Ba6 
16.Bb2 Bc4 17.Nd2 Nxd2 18.Qxd2 e5 19.dxe5 Nxe5 20.Rfe1 Nd7 21.Bxf6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Hartston, William Roland"]
[Black "Reshevsky, Samuel"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2485"]
[ECO "B42"]
[EventDate "1979.07.06"]
[PlyCount "30"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nc6 6.Nxc6 dxc6 7.Nd2 b5 8.a4 
Bb7 9.O-O Nf6 10.f4 Nd7 11.axb5 cxb5 12.Nb3 Nc5 13.Nxc5 Bxc5+ 14.Kh1 O-O 
15.Bd2 b4 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Mestel, Andrew Jonathan"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "0-1"]
[WhiteElo "2475"]
[BlackElo "2310"]
[ECO "C09"]
[EventDate "1979.07.06"]
[PlyCount "146"]

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.Bd2 O-O 11.Bc3 Ng6 12.Re1 Bf5 13.Nbd4 Bd7 14.Bd3 Nxd4
15.Nxd4 Nf4 16.Re3 Qh4 17.Rg3 Ng6 18.Bxg6 fxg6 19.Nf3 Qe4 20.Rg5 Bf5 21.
Qd4 Rf7 22.Ne5 Qxd4 23.Bxd4 Bxe5 24.Bxe5 Bxc2 25.Bd4 Bf5 26.Rg3 Rc7 27.h4 
Rc4 28.Rd1 b5 29.Re3 Kf7 30.Re5 Be6 31.b3 Rc2 32.Rd3 Rc6 33.Rf3+ Kg8 34.
Rfe3 Kf7 35.h5 gxh5 36.Rxh5 Kg8 37.Rg3 g6 38.Rxg6+ hxg6 39.Rh8+ Kf7 40.
Rxa8 a6 41.Ra7+ Ke8 42.Kh2 Bc8 43.Kg3 Rc2 44.Kf4 Rxa2 45.Rc7 Bd7 46.Kg5 a5
47.Kxg6 a4 48.b4 Rd2 49.Be3 Rb2 50.Ra7 Bc6 51.Kf6 Rxb4 52.Re7+ Kd8 53.Bb6+
Kc8 54.Rc7+ Kb8 55.Rxc6 Kb7 56.Re6 a3 57.Bc5 a2 58.Rb6+ Ka7 59.Re6+ Kb7 
60.Re1 Rb1 61.Re7+ Kc6 62.Bd4 b4 63.Re2 b3 64.Rd2 Kb5 65.Be5 Re1 66.Bb2 
Kc4 67.g4 Rb1 68.Be5 a1=Q 69.Bxa1 Rxa1 70.f4 Ra2 71.Rd1 b2 72.Rb1 d4 73.g5
Kc3 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Mortensen, Erling"]
[Black "Knudsen, Per"]
[Result "1-0"]
[WhiteElo "2365"]
[BlackElo "2390"]
[ECO "D18"]
[EventDate "1979.07.06"]
[PlyCount "49"]

1.Nf3 Nf6 2.d4 d5 3.c4 c6 4.Nc3 dxc4 5.a4 Bf5 6.e3 Nbd7 7.Bxc4 e6 8.O-O 
Be7 9.Qe2 Bg4 10.h3 Bxf3 11.Qxf3 O-O 12.Rd1 e5 13.d5 Qc7 14.e4 Rad8 15.
dxc6 bxc6 16.Be3 Rb8 17.Rd2 Nc5 18.Rad1 Rb4 19.Qe2 Qb8 20.g4 Nfxe4 21.Nxe4
Nxe4 22.Rd7 Rxb2 23.Qf3 Nd6 24.Ba6 Re8 25.R1xd6 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Sigurjonsson, Gudmundur"]
[Black "Westerinen, Heikki"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2465"]
[ECO "E63"]
[EventDate "1979.07.06"]
[PlyCount "79"]

1.Nf3 Nf6 2.c4 g6 3.d4 Bg7 4.Nc3 O-O 5.g3 d6 6.Bg2 Nc6 7.O-O a6 8.h3 e5 9.
d5 Ne7 10.e4 Nh5 11.Re1 Qe8 12.c5 h6 13.cxd6 cxd6 14.a4 f5 15.b3 Bd7 16.
Ba3 Rf6 17.Rc1 Qf7 18.exf5 gxf5 19.Nd2 Rf8 20.Nc4 Nc8 21.Rxe5 b5 22.Bf3 
Nxg3 23.fxg3 Qg6 24.Kg2 f4 25.Ne4 bxc4 26.Bh5 Qh7 27.Nxf6+ Bxf6 28.Re1 Qg7
29.Bg4 Bg5 30.Rxc4 Nb6 31.Rc7 Bd8 32.Rxd7 Nxd7 33.Bxd6 fxg3 34.Bxf8 Nxf8 
35.Qd3 Bh4 36.d6 Qf6 37.Qd5+ Kh8 38.Qe5 Ng6 39.Qxf6+ Bxf6 40.d7 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Sloth, Joern"]
[Black "Oest-Hansen, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2380"]
[ECO "B07"]
[EventDate "1979.07.06"]
[PlyCount "71"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.c3 Nf6 5.Bd3 O-O 6.O-O Nc6 7.Nbd2 e5 8.dxe5 
Nxe5 9.Nxe5 dxe5 10.Nc4 Re8 11.Bg5 h6 12.Bh4 Qd7 13.Qc2 Nh5 14.Rfd1 Qg4 
15.Bg3 Qg5 16.Qd2 Qe7 17.Ne3 Be6 18.Bc4 Rad8 19.Qc2 Nxg3 20.hxg3 c6 21.
Bxe6 Qxe6 22.Qb3 Qe7 23.Rxd8 Rxd8 24.Rd1 Rxd1+ 25.Qxd1 h5 26.a4 Bf8 27.Nc4
Qc7 28.Qd3 b6 29.Kf1 a6 30.Ne3 b5 31.Ke2 Bc5 32.axb5 axb5 33.b4 Bb6 34.c4 
bxc4 35.Qxc4 Qd6 36.Nc2 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.16"]
[Round "9"]
[White "Vadasz, Laszlo"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2430"]
[ECO "D75"]
[EventDate "1979.07.06"]
[PlyCount "63"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.cxd5 Nxd5 7.d4 c5 8.e4 Nb6
9.d5 e6 10.Bg5 Qd7 11.Nc3 Na6 12.Nd2 h6 13.Be3 Rd8 14.Qb3 Kh7 15.Rfd1 exd5
16.exd5 Qg4 17.Nde4 Nd7 18.h3 Qh5 19.f4 f5 20.Nd6 Nb6 21.Ncb5 Bd7 22.a4 
Rab8 23.Rd2 g5 24.fxg5 hxg5 25.Rf1 Rf8 26.Qc2 Kh8 27.Nxf5 Rxf5 28.Rxf5 Nb4
29.Qxc5 Bxf5 30.Qxb4 Bxh3 31.Bxh3 Qxh3 32.Rh2 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Mortensen, Erling"]
[Result "0-1"]
[WhiteElo "2430"]
[BlackElo "2365"]
[ECO "B21"]
[EventDate "1979.07.06"]
[PlyCount "119"]

1.e4 c5 2.f4 e6 3.Nf3 d5 4.Bb5+ Bd7 5.Bxd7+ Nxd7 6.d3 Ngf6 7.Qe2 Be7 8.c4 
dxe4 9.dxe4 Nb8 10.Nc3 Nc6 11.Be3 O-O 12.O-O Ng4 13.Bd2 Qb6 14.Na4 Qc7 15.
h3 Nf6 16.e5 Nh5 17.Qf2 g6 18.g4 Ng7 19.Be3 b6 20.Nc3 f6 21.exf6 Bxf6 22.
Ne4 Be7 23.Qg3 Rad8 24.Rad1 Rxd1 25.Rxd1 Rd8 26.Rf1 Rf8 27.Ne5 Ne8 28.Rd1 
Nd6 29.Nd2 Nxe5 30.fxe5 Nf7 31.Re1 Qd8 32.Rf1 Qd3 33.Rf3 Qe2 34.b3 Rd8 35.
Rf2 Qd3 36.Bf4 Bg5 37.Nf3 Qb1+ 38.Kh2 Be7 39.Qg2 Qe4 40.Nd2 Qxg2+ 41.Kxg2 
Rd4 42.Bg3 Bg5 43.Nf3 Rd3 44.Re2 Bc1 45.Rc2 Be3 46.Bf2 Bf4 47.Re2 h5 48.
gxh5 gxh5 49.Re4 Bh6 50.Rh4 Rc3 51.Ne1 Kg7 52.Rxh5 Bg5 53.Nf3 Be7 54.Nh4 
Rc2 55.Kg3 Rxa2 56.Ng2 Bg5 57.Nh4 Rb2 58.Nf3 Rxb3 59.Kg4 Be7 60.Be1 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Oest-Hansen, Jacob"]
[Result "0-1"]
[WhiteElo "2310"]
[BlackElo "2380"]
[ECO "B48"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.e4 c5 2.Nc3 e6 3.Nf3 a6 4.d4 cxd4 5.Nxd4 Qc7 6.Be2 Nf6 7.a3 Nc6 8.O-O 
Be7 9.Be3 O-O 10.f4 d6 11.Kh1 e5 12.Nf5 Bxf5 13.exf5 Rad8 14.Nd5 Nxd5 15.
Qxd5 Bf6 16.c3 Rfe8 17.Bh5 Rd7 18.Rad1 Na5 19.fxe5 Rxe5 20.Qd3 Nc4 21.Bc1 
Qc5 22.Bf3 d5 23.Rfe1 Qe7 24.Rxe5 Nxe5 25.Qe2 Nxf3 26.Qxf3 d4 27.Qd3 Rd8 
28.cxd4 Rxd4 29.Qc2 Qc7 30.Qe2 Qe5 31.Qe1 h6 32.h3 Qxf5 33.Rxd4 Bxd4 34.
Qd1 Qe4 35.b3 Be5 36.a4 Qb1 37.Qd8+ Kh7 38.Qd2 Qxb3 39.a5 Qg3 40.Kg1 Bc3 
0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Knudsen, Per"]
[Black "Sloth, Joern"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2400"]
[ECO "A15"]
[EventDate "1979.07.06"]
[PlyCount "78"]

1.Nf3 Nf6 2.c4 b6 3.b3 Bb7 4.Bb2 g6 5.g3 Bg7 6.Bg2 O-O 7.O-O e6 8.d3 d5 9.
cxd5 exd5 10.b4 c5 11.bxc5 bxc5 12.Nbd2 Nbd7 13.Qc2 Re8 14.Rfe1 Rc8 15.
Rac1 d4 16.Nc4 Nb6 17.e4 Nxc4 18.Qxc4 Qa5 19.Bh3 Ba6 20.Qc2 Rb8 21.Ba1 c4 
22.dxc4 Bb7 23.Nd2 Rbd8 24.Bg2 Ng4 25.Nb3 Qb4 26.h3 d3 27.Qd2 Qxd2 28.Nxd2
Ne5 29.f4 Nd7 30.Bxg7 Kxg7 31.c5 Re6 32.Rc3 Rc8 33.Rec1 Ra6 34.a3 Bc6 35.
Rxd3 Rb8 36.e5 Bxg2 37.Kxg2 Nf8 38.c6 Rc8 39.c7 Ne6 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Kristiansen, Jens"]
[Black "Hartston, William Roland"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2485"]
[ECO "B42"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Ne7 6.Bd3 Nec6 7.Nxc6 Nxc6 8.
O-O Be7 9.Qh5 O-O 10.f4 f6 11.Kh1 Rf7 12.Bd2 b5 13.Rae1 Bb7 14.Re3 g6 15.
Rg3 Rg7 16.Qh6 Bf8 17.a4 b4 18.Nd1 f5 19.exf5 gxf5 20.Rff3 Ne7 21.Rxg7+ 
Bxg7 22.Rg3 Ng6 23.Qh5 a5 24.Nf2 Qh4 25.Qe2 Bxb2 26.Bb5 Qe7 27.Nd3 Bg7 28.
Ne5 Bxe5 29.Qxe5 Qg7 30.Qe1 Bd5 31.c3 Kf7 32.cxb4 axb4 33.Bxb4 Rc8 34.Bc3 
Qh6 35.Bxd7 Rc4 36.Re3 Nxf4 37.Rg3 Nxg2 38.Rxg2 Qg6 39.Bxe6+ Qxe6 40.Qxe6+
Kxe6 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Mestel, Andrew Jonathan"]
[Black "Fedder, Steen"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2415"]
[ECO "B52"]
[EventDate "1979.07.06"]
[PlyCount "73"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Bxb5 5.cxb5 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4
Bg7 9.O-O O-O 10.a4 a5 11.bxa6 Nxa6 12.Re1 Nb4 13.Ndb5 Qc8 14.Bg5 Qc5 15.
Qd2 h6 16.Be3 Qh5 17.f3 Rfc8 18.Rac1 Nd7 19.Na7 Rc7 20.Ncb5 Rxc1 21.Rxc1 
Nc6 22.b3 Nde5 23.Nxc6 Nxc6 24.Nc7 Rd8 25.b4 e6 26.Bb6 Rd7 27.Ne8 d5 28.b5
Ne7 29.a5 Qe5 30.Nxg7 Qxg7 31.a6 bxa6 32.bxa6 Qf8 33.a7 Qa8 34.Ra1 Nc8 35.
Qd4 Rb7 36.Bc5 Rd7 37.Qe5 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Reshevsky, Samuel"]
[Black "Sigurjonsson, Gudmundur"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2490"]
[ECO "B81"]
[EventDate "1979.07.06"]
[PlyCount "85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 a6 7.g5 Nfd7 8.Be3 b5 
9.a3 Nb6 10.f4 N8d7 11.Nb3 Qc7 12.Qd4 Rb8 13.O-O-O Bb7 14.h4 Rc8 15.Bg1 d5
16.Kb1 Qxf4 17.Na5 Ba8 18.exd5 Qxd4 19.Bxd4 Nxd5 20.Rh3 f6 21.Nxd5 Bxd5 
22.Be2 Bc5 23.Nb3 Bxd4 24.Nxd4 Nb6 25.gxf6 gxf6 26.Rg3 Rc7 27.Rdg1 Kf8 28.
h5 e5 29.Nf5 Rg8 30.h6 Rxg3 31.Rxg3 Rd7 32.Bd3 e4 33.Be2 Be6 34.Ng7 Bc4 
35.Bg4 Rd2 36.b3 Bd5 37.Bf5 Rh2 38.Bh3 Bf7 39.Ne6+ Bxe6 40.Bxe6 Rxh6 41.
Rg4 Rh5 42.Rxe4 Re5 43.Rxe5 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.17"]
[Round "10"]
[White "Westerinen, Heikki"]
[Black "Vadasz, Laszlo"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2490"]
[ECO "B18"]
[EventDate "1979.07.06"]
[PlyCount "38"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Nc5 e6 6.Nxb7 Qb6 7.Nc5 Bxc5 8.
dxc5 Qxc5 9.c3 Nf6 10.Nf3 O-O 11.Be2 Qa5 12.O-O c5 13.Ne5 Qc7 14.Nc4 Nbd7 
15.Bg5 Rab8 16.Bh4 e5 17.Re1 Be6 18.Qc2 Nd5 19.Bf1 f6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Fedder, Steen"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2310"]
[ECO "E17"]
[EventDate "1979.07.06"]
[PlyCount "32"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Qc2 d5 8.Rd1 dxc4
9.Qxc4 a6 10.Bg5 c5 11.Bxf6 Bxf6 12.Nc3 cxd4 13.Nxd4 Bxg2 14.Kxg2 b5 15.
Qc5 Nd7 16.Qc6 Ne5 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Hartston, William Roland"]
[Black "Mestel, Andrew Jonathan"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2475"]
[ECO "E61"]
[EventDate "1979.07.06"]
[PlyCount "76"]

1.Nf3 g6 2.d4 Bg7 3.c4 d6 4.Nc3 Nf6 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5 8.e3 e6 9.
Be2 Nd7 10.Qc2 O-O 11.d5 Nc5 12.Nd4 Nxg3 13.hxg3 a5 14.g4 a4 15.a3 c6 16.
dxc6 bxc6 17.Nxc6 Qb6 18.Nb4 Bb7 19.O-O h5 20.gxh5 f5 21.Rad1 g4 22.Nb5 
Rad8 23.Rd4 Bxd4 24.exd4 Ne4 25.Bd3 Rd7 26.Rc1 Qd8 27.c5 dxc5 28.dxc5 g3 
29.fxg3 Qg5 30.Re1 Qxg3 31.Re2 Rh7 32.Bxe4 fxe4 33.Qc3 Qf4 34.Re3 Qf1+ 35.
Kh2 Rxh5+ 36.Rh3 e3 37.c6 Qf4+ 38.Kg1 Rxh3 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Mortensen, Erling"]
[Black "Westerinen, Heikki"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2465"]
[ECO "C91"]
[EventDate "1979.07.06"]
[PlyCount "130"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.d4 Bg4 10.Be3 exd4 11.cxd4 Na5 12.Bc2 Nc4 13.Bc1 c5 14.d5 Nd7 15.h3 Bxf3
16.Qxf3 Bg5 17.Bxg5 Qxg5 18.b3 Nce5 19.Qe3 Qxe3 20.Rxe3 c4 21.f4 Ng6 22.g3
Rac8 23.b4 c3 24.a4 a5 25.Rxc3 axb4 26.Rc6 Nc5 27.axb5 b3 28.Bd1 b2 29.Ra2
Nxe4 30.Kg2 Ne7 31.Bf3 f5 32.Rxb2 Nxd5 33.Bxe4 fxe4 34.Rxc8 Rxc8 35.Kf2 
Nb6 36.Rb3 Kf7 37.Ke3 d5 38.Rc3 Nc4+ 39.Kd4 Rd8 40.Na3 Nd6 41.g4 Rb8 42.
Rb3 Ke6 43.b6 Nc8 44.Kc5 Nd6 45.Kd4 Nc8 46.f5+ Kf6 47.b7 Nd6 48.Rb6 Ke7 
49.Nb5 Nxb7 50.Nc7 Nd8 51.Nxd5+ Kd7 52.Rxb8 Nc6+ 53.Kxe4 Nxb8 54.Nf4 Ke7 
55.Kd5 Nd7 56.g5 Nb6+ 57.Kc5 Nd7+ 58.Kd4 Kf7 59.Nd5 g6 60.Ke4 h6 61.gxh6 
Nf6+ 62.Ke5 Nxd5 63.h7 Kg7 64.fxg6 Ne7 65.h8=Q+ Kxh8 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Oest-Hansen, Jacob"]
[Black "Knudsen, Per"]
[Result "1-0"]
[WhiteElo "2380"]
[BlackElo "2390"]
[ECO "C05"]
[EventDate "1979.07.06"]
[PlyCount "45"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.Nxd4 
Nc5 9.Ngf3 Be7 10.Be3 O-O 11.Be2 Bd7 12.O-O Ne4 13.Rc1 a6 14.c4 Nxd4 15.
Nxd4 Bc6 16.Bf3 Qb6 17.cxd5 Bxd5 18.Nf5 Bc5 19.Ne7+ Kh8 20.Rxc5 Nxc5 21.
Nxd5 exd5 22.Qd4 Rac8 23.b4 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Sigurjonsson, Gudmundur"]
[Black "Kristiansen, Jens"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2365"]
[ECO "E12"]
[EventDate "1979.07.06"]
[PlyCount "98"]

1.Nf3 Nf6 2.c4 e6 3.d4 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.e3 Nd7 8.Bd3 Be7
9.e4 Nxc3 10.bxc3 O-O 11.O-O c5 12.Qe2 Qc7 13.Bd2 Rac8 14.a4 Nf6 15.Rfb1 
Rfd8 16.a5 Bc6 17.axb6 axb6 18.Ra6 b5 19.e5 c4 20.Bc2 Nd5 21.h4 Ra8 22.
Rxc6 Qxc6 23.Qe4 g6 24.h5 Ra2 25.Rc1 b4 26.hxg6 hxg6 27.cxb4 Nxb4 28.Bxb4 
Qxe4 29.Bxe4 Bxb4 30.Rxc4 Ra1+ 31.Kh2 Ba5 32.Rc6 Ra3 33.g3 Bc3 34.Rc4 Ba5 
35.Rc6 Rb3 36.Kg2 Rb4 37.Bc2 Kf8 38.Ng5 Ke7 39.Bxg6 fxg6 40.Rxe6+ Kd7 41.
Rxg6 Rxd4 42.Ne6 Rd2 43.Nxd8 Bxd8 44.Kf1 Rb2 45.f4 Bb6 46.f5 Rf2+ 47.Ke1 
Rxf5 48.Rxb6 Rxe5+ 49.Kf2 Ke7 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Sloth, Joern"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2430"]
[ECO "D75"]
[EventDate "1979.07.06"]
[PlyCount "43"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.cxd5 Nxd5 7.d4 c5 8.dxc5 
Na6 9.Ng5 Ndb4 10.Nc3 h6 11.Nf3 Be6 12.Be3 Qxd1 13.Rfxd1 Nc2 14.Rac1 Nxe3 
15.fxe3 Nxc5 16.b4 Bxc3 17.Rxc3 Na4 18.Rc7 Rab8 19.Nd4 Rfd8 20.Rdc1 Rd6 
21.Bxb7 Rb6 22.Bf3 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.18"]
[Round "11"]
[White "Vadasz, Laszlo"]
[Black "Reshevsky, Samuel"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2485"]
[ECO "E18"]
[EventDate "1979.07.06"]
[PlyCount "25"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 Bf6
9.Qc2 Nxd2 10.Qxd2 d6 11.e4 Nd7 12.Rfe1 g6 13.h4 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Oest-Hansen, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2380"]
[ECO "B17"]
[EventDate "1979.07.06"]
[PlyCount "37"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3 e6 7.Be2 Qc7 8.O-O 
b6 9.Re1 Bd6 10.Bd3 O-O 11.Bg5 Bb7 12.Qe2 c5 13.dxc5 Bxc5 14.Ne4 Be7 15.
Rad1 Rfe8 16.c4 Rad8 17.a3 Nxe4 18.Bxe7 Rxe7 19.Bxe4 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Fedder, Steen"]
[Black "Hartston, William Roland"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2485"]
[ECO "D93"]
[EventDate "1979.07.06"]
[PlyCount "41"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c6 6.Nf3 O-O 7.Rc1 Be6 8.Qb3 Qb6 
9.Ng5 Qxb3 10.axb3 Bd7 11.Be5 Na6 12.cxd5 cxd5 13.Bxa6 bxa6 14.Ra1 Rfc8 
15.Rxa6 h6 16.Bxf6 Bxf6 17.Nf3 e6 18.O-O Be7 19.Ne5 Be8 20.Rfa1 Rc7 21.Nd3
1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Fries-Nielsen, Jens Ove"]
[Black "Knudsen, Per"]
[Result "0-1"]
[WhiteElo "2310"]
[BlackElo "2390"]
[ECO "A44"]
[EventDate "1979.07.06"]
[PlyCount "68"]

1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 g6 5.g3 Bg7 6.Bg2 Ne7 7.Nf3 O-O 8.O-O h6 9.
Nd2 f5 10.exf5 Bxf5 11.Nc4 g5 12.a4 Rf6 13.Ra3 Na6 14.Ne4 Rg6 15.Ne3 Qd7 
16.Nxf5 Qxf5 17.g4 Qd7 18.Ng3 Rf6 19.Nf5 Rff8 20.Be4 Nc7 21.h4 gxh4 22.g5 
hxg5 23.Nxg7 Kxg7 24.Qh5 Rh8 25.Qxg5+ Kf7 26.Rf3+ Ke8 27.Kh1 Rg8 28.Qh5+ 
Kd8 29.Bg5 Ne8 30.Rf7 Qh3+ 31.Kg1 Rg7 32.Bf5 Nf6 33.Bxh3 Nxh5 34.Rxe7 
Rxg5+ 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Kristiansen, Jens"]
[Black "Vadasz, Laszlo"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2490"]
[ECO "B10"]
[EventDate "1979.07.06"]
[PlyCount "76"]

1.e4 c6 2.c4 d5 3.cxd5 cxd5 4.exd5 Nf6 5.Bb5+ Nbd7 6.Nc3 a6 7.Ba4 b5 8.Bb3
Bb7 9.Nf3 Nb6 10.O-O Nbxd5 11.a4 b4 12.a5 Qc7 13.Ba4+ Kd8 14.Nxd5 Nxd5 15.
d4 e6 16.Bg5+ f6 17.Bh4 Bd6 18.Rc1 Qf7 19.Ne5 Bxe5 20.dxe5 g5 21.Bg3 f5 
22.f3 Rc8 23.Qd2 Qg7 24.Bf2 Ke7 25.Bc5+ Kf7 26.Bd6 Kg6 27.Bb3 h5 28.Bxd5 
Bxd5 29.Qxb4 Qb7 30.Qb6 Rxc1 31.Rxc1 Rc8 32.Bc7 g4 33.f4 h4 34.b4 Kf7 35.
Qxb7 Bxb7 36.Rc5 h3 37.g3 Ke8 38.Kf2 Kd7 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Mestel, Andrew Jonathan"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2490"]
[ECO "B85"]
[EventDate "1979.07.06"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 a6
9.Qe1 Nc6 10.Be3 Bd7 11.Qg3 Nxd4 12.Bxd4 Bc6 13.Bd3 b5 14.a3 Qd7 15.Rae1 
a5 16.Rf3 Rfe8 17.Kh1 b4 18.Nd1 g6 19.axb4 axb4 20.Nf2 d5 21.e5 Ne4 22.Qh3
Nxf2+ 23.Rxf2 Bb5 24.g4 Bxd3 25.cxd3 b3 26.f5 Bf8 27.Ref1 Bg7 28.f6 Bf8 
29.Be3 d4 30.Bh6 Qd5+ 31.Rf3 Bb4 32.Bg7 Bd2 33.Bh6 Bb4 34.Kg1 Qxe5 35.Qh4 
Ra5 36.Rh3 Qb5 37.Bf4 h5 38.gxh5 Qxh5 39.Qg3 Qe2 40.Rh6 Bf8 41.Rxg6+ 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "12"]
[White "Reshevsky, Samuel"]
[Black "Mortensen, Erling"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2365"]
[ECO "E52"]
[EventDate "1979.07.06"]
[PlyCount "18"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 Bb4 5.e3 O-O 6.Bd3 b6 7.O-O Bb7 8.Bd2 Bd6 
9.Qc2 c6 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.20"]
[Round "12"]
[White "Westerinen, Heikki"]
[Black "Sloth, Joern"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2400"]
[ECO "C05"]
[EventDate "1979.07.06"]
[PlyCount "80"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 f5 8.Bd3 c4 9.
Bc2 b5 10.g4 Be7 11.h4 fxg4 12.Ng5 Nf8 13.Qxg4 h5 14.Qf3 g6 15.Ne2 Qd7 16.
Ng3 Bb7 17.f5 exf5 18.Nxf5 gxf5 19.Bxf5 Qc7 20.Rf1 Nd8 21.Bf4 Qc6 22.O-O-O
Nde6 23.Rde1 Bc8 24.Ne4 Bd7 25.Nd6+ Bxd6 26.exd6 O-O-O 27.Be5 Rg8 28.Bf6 
Qxd6 29.Bxd8 Kxd8 30.Re5 Nc7 31.Qxh5 Bxf5 32.Rexf5 Nfe6 33.Re5 b4 34.Qh7 
Rf8 35.Rxf8+ Qxf8 36.Rf5 Qg7 37.Qxg7 Nxg7 38.Rf7 Nce6 39.Rxa7 bxc3 40.bxc3
Nc7 1-0

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.19"]
[Round "13"]
[White "Sloth, Joern"]
[Black "Reshevsky, Samuel"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2485"]
[ECO "A24"]
[EventDate "1979.07.06"]
[PlyCount "68"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 O-O 5.Nc3 d6 6.O-O e5 7.d3 Re8 8.Bd2 Nbd7
9.Rc1 a5 10.a3 e4 11.Ne1 exd3 12.Nxd3 c6 13.Bf4 Nb6 14.b3 a4 15.Nxa4 Nxa4 
16.bxa4 Ne4 17.Qb3 Qa5 18.Bxe4 Rxe4 19.Bxd6 Rxe2 20.Rfe1 Rxe1+ 21.Rxe1 Bf5
22.Bb4 Qd8 23.Nc5 b6 24.Ne4 c5 25.Bc3 Bd4 26.Bxd4 cxd4 27.Nd2 Qd6 28.Qb5 
Ra5 29.Qe8+ Kg7 30.Re7 Qf6 31.Nf3 Be6 32.Nd2 Re5 33.Qd8 Re2 34.Rxf7+ Bxf7 
0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Hartston, William Roland"]
[Black "Fries-Nielsen, Jens Ove"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2310"]
[ECO "D85"]
[EventDate "1979.07.06"]
[PlyCount "87"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5 8.Bb5+
Bd7 9.Bxd7+ Qxd7 10.O-O cxd4 11.cxd4 O-O 12.Be3 Nc6 13.d5 Na5 14.Bd4 f6 
15.Bc3 Nc4 16.Nd4 Rac8 17.Qb3 Nd6 18.Rfe1 Rc4 19.Bb2 Rfc8 20.Rad1 a5 21.
Qd3 Qa4 22.a3 Nb5 23.Qh3 Nxd4 24.Rxd4 f5 25.Rxc4 Qxc4 26.Bxg7 Kxg7 27.exf5
Qe4 28.Rf1 Qxf5 29.Qe3 Rc7 30.Rd1 Qf6 31.h3 Rc3 32.Qa7 Rxa3 33.Qxb7 Ra1 
34.Rxa1 Qxa1+ 35.Kh2 Qe5+ 36.g3 a4 37.Qa7 Kf7 38.Qxa4 Qxd5 39.Qf4+ Kg7 40.
Qe3 Kf7 41.h4 h5 42.Kg1 Kf6 43.Qh6 Kf7 44.Qe3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Knudsen, Per"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2430"]
[ECO "A16"]
[EventDate "1979.07.06"]
[PlyCount "118"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.cxd5 Nxd5 7.Nc3 Nc6 8.Nxd5
Qxd5 9.d3 Qb5 10.Rb1 a5 11.a4 Qh5 12.Bd2 e5 13.Qc2 Be6 14.b4 axb4 15.Bxb4 
Rfb8 16.Bd2 Bh3 17.Rb5 Bxg2 18.Kxg2 Qg4 19.Rfb1 Qxa4 20.Qxa4 Rxa4 21.Rxb7 
Rxb7 22.Rxb7 Ra7 23.Rb5 Kf8 24.Be3 Ra2 25.Rb7 Nd4 26.Rxc7 Rxe2 27.Ng5 f6 
28.Rc8+ Ke7 29.Rc7+ Kf8 30.Kf1 fxg5 31.Bxd4 Rd2 32.Bc5+ Kg8 33.Rd7 g4 34.
Be3 Rc2 35.Kg2 h5 36.h3 gxh3+ 37.Kxh3 Bf6 38.Kg2 Ra2 39.Kf3 Ra4 40.Rc7 Kf8
41.Bh6+ Ke8 42.Bg7 Bxg7 43.Rxg7 Rg4 44.Ra7 Kf8 45.Rd7 Rg5 46.Ke4 Rf5 47.f3
Rg5 48.f4 exf4 49.gxf4 Rf5 50.d4 Rf7 51.Rd8+ Ke7 52.Ra8 Rf8 53.Ra6 Kf7 54.
Ra7+ Kf6 55.Ra6+ Kf7 56.d5 Re8+ 57.Kd4 Re1 58.Ra7+ Kf6 59.Rh7 Rf1 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Mortensen, Erling"]
[Black "Kristiansen, Jens"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2365"]
[ECO "A30"]
[EventDate "1979.07.06"]
[PlyCount "27"]

1.c4 Nf6 2.g3 c5 3.Bg2 Nc6 4.Nf3 b6 5.d4 cxd4 6.Nxd4 Bb7 7.O-O Qc8 8.Nc3 
Nxd4 9.Qxd4 Bxg2 10.Kxg2 Qc6+ 11.f3 e6 12.e4 d6 13.Be3 Be7 14.b3 1/2-1/2

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Oest-Hansen, Jacob"]
[Black "Westerinen, Heikki"]
[Result "0-1"]
[WhiteElo "2380"]
[BlackElo "2465"]
[ECO "A48"]
[EventDate "1979.07.06"]
[PlyCount "136"]

1.Nf3 Nf6 2.d4 g6 3.Bf4 Bg7 4.e3 d6 5.h3 O-O 6.Be2 c5 7.O-O Nc6 8.c3 Bf5 
9.Qb3 Qb6 10.Nbd2 Ne4 11.Qxb6 axb6 12.Nxe4 Bxe4 13.Nd2 Bf5 14.d5 Ne5 15.
Bxe5 dxe5 16.Bb5 Rad8 17.e4 Bh6 18.Nc4 Bxe4 19.Nxb6 Bxd5 20.Rfd1 Be6 21.
Bd7 e4 22.Bxe6 Rxd1+ 23.Rxd1 fxe6 24.Re1 Rd8 25.a4 Rd2 26.Nc4 Rc2 27.Kf1 
e3 28.fxe3 Kf7 29.Re2 Rc1+ 30.Re1 Rc2 31.Rd1 Ke8 32.h4 g5 33.hxg5 Bxg5 34.
g3 h5 35.e4 Rh2 36.Re1 Rc2 37.Re2 Rc1+ 38.Re1 Rc2 39.Re2 Rc1+ 40.Kf2 Ra1 
41.Na5 b6 42.Nc4 Kd8 43.Re1 Rxa4 44.Nxb6 Ra2 45.Nc4 h4 46.g4 Kc7 47.Re2 
Ra8 48.Ne5 Rf8+ 49.Nf3 Rf4 50.Ke3 Rxg4+ 51.Nxg5 Rxg5 52.Kf4 Rh5 53.b3 h3 
54.Rh2 Rh4+ 55.Ke5 Kc6 56.b4 cxb4 57.cxb4 Kb5 58.Kxe6 Rxe4+ 59.Kf5 Rh4 60.
Kg5 Rh8 61.Kg6 Kxb4 62.Kg7 Rh4 63.Kf7 Kc3 64.Kxe7 Kd3 65.Kf6 Ke4 66.Kg5 
Rh8 67.Kg4 Rg8+ 68.Kh4 Kf3 0-1

[Event "4th North Sea Cup"]
[Site "Esbjerg DEN"]
[Date "1979.07.21"]
[Round "13"]
[White "Sigurjonsson, Gudmundur"]
[Black "Fedder, Steen"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2415"]
[ECO "E04"]
[EventDate "1979.07.06"]
[PlyCount "48"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 e6 4.O-O c5 5.d4 Nc6 6.c4 dxc4 7.Qa4 Bd7 8.Qxc4 b5
9.Qd3 c4 10.Qc2 Rc8 11.e4 Be7 12.Qe2 O-O 13.Rd1 Na5 14.Ne5 b4 15.d5 exd5 
16.Nxd7 Qxd7 17.e5 d4 18.exf6 Bxf6 19.Qh5 Qa4 20.Nd2 g6 21.Qf3 Bg7 22.Nxc4
Nxc4 23.b3 Qa5 24.bxc4 Rxc4 1-0

