[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Bohm, Hans"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "47"]
[ECO "A32"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Bg5 Qa5 7.Nb5 a6 8.Nd6+ 
Ke7 9.Qd2 Qc5 10.Nde4 Qxc4 11.Qf4 Kf8 12.Bxf6 gxf6 13.e3 Qc6 14.Qh6+ Ke8 
15.Nxf6+ Kd8 16.Rc1 Bf8 17.Qh5 Be7 18.Ng4 Qb6 19.Ne5 Nc6 20.Nxf7+ Kc7 21.
Nd5+ exd5 22.Qe5+ d6 23.Qxe7+ Kb8 24.Qxd6+ 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Carlier, Bruno"]
[Black "Ree, Hans"]
[Result "0-1"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "102"]
[ECO "A01"]

1.b3 e5 2.Bb2 d6 3.c4 Nf6 4.e3 g6 5.Nf3 Bg7 6.d4 exd4 7.Nxd4 O-O 8.Nc3 d5 
9.cxd5 Nxd5 10.Bc4 Nxc3 11.Bxc3 Nc6 12.O-O Ne5 13.Be2 c5 14.Nb5 Qh4 15.Qc1
Rd8 16.Qb2 Qe7 17.Rad1 Bf5 18.e4 Bxe4 19.f4 Nd3 20.Bxd3 Bxd3 21.Rxd3 Rxd3 
22.Bxg7 Qe3+ 23.Kh1 Rd2 24.Qf6 Rf2 25.Rg1 Qxf4 26.Qxf4 Rxf4 27.Ba1 Rf2 28.
Nc3 f5 29.Rd1 Re8 30.h3 Kf7 31.Kh2 Rc2 32.Nb5 Ree2 33.Rd7+ Re7 34.Nd6+ Ke6
35.Rxe7+ Kxe7 36.Nxb7 Rxa2 37.Bh8 f4 38.Kg1 Rc2 39.Be5 g5 40.Bb8 a6 41.Na5
Ke6 42.Bc7 Kf5 43.Nc4 h5 44.Ba5 Ke4 45.Kf1 g4 46.hxg4 hxg4 47.Bd2 g3 48.
Ke2 Ra2 49.Nd6+ Kd4 50.Nc4 a5 51.Kf3 a4 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Langeweg, Christian"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "86"]
[ECO "E52"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.e3 Bb4 6.Bd3 O-O 7.O-O d5 8.cxd5 
exd5 9.a3 Bd6 10.b4 Re8 11.Qb3 c6 12.Bb2 Nbd7 13.Rfe1 Rb8 14.Qc2 Rc8 15.
Rac1 c5 16.bxc5 bxc5 17.dxc5 Nxc5 18.Bf5 Ne6 19.Qa4 Rc4 20.Qd1 d4 21.Nb5 
Rxc1 22.Bxc1 Bxf3 23.gxf3 Bxh2+ 24.Kxh2 Qb8+ 25.Kg1 Qxb5 26.Qd3 Qe5 27.Bd2
Nc5 28.Qc2 d3 29.Bxd3 Rd8 30.Bf1 Qg5+ 31.Bg2 Nd3 32.Rd1 Ne5 33.Kf1 Qh4 34.
Bb4 Re8 35.Qc7 h5 36.Bc3 Qh2 37.Rd8 Rxd8 38.Qxd8+ Kh7 39.Qe7 Ng6 40.Qxf7 
Nh4 41.Bxf6 Qxg2+ 42.Ke1 Nxf3+ 43.Ke2 Qg4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Timman, Jan"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "85"]
[ECO "E47"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.d5 b5 7.dxe6 fxe6 8.cxb5 d5
9.Ne2 a6 10.O-O axb5 11.Bxb5 Bb7 12.a3 Ba5 13.Rb1 Bc7 14.Ng3 d4 15.Nce2 h5
16.exd4 Qd5 17.f3 h4 18.Bf4 Bb6 19.Nh1 cxd4 20.Qd3 Nc6 21.Bc4 Qd7 22.Nf2 
Nd5 23.Rfe1 Rae8 24.Nh3 Rf5 25.Kh1 Kh8 26.Rbc1 Ref8 27.Bb5 Nde7 28.a4 Qd8 
29.Ng5 R8f6 30.Bc4 Nb4 31.Qd2 Nbd5 32.Nh3 Ba5 33.Qxd4 Bxe1 34.Rxe1 Qa5 35.
Bd2 Qxa4 36.Qxh4+ Kg8 37.b3 Qe8 38.Ng3 Qg6 39.Bg5 Rxg5 40.Qxg5 Qxg5 41.
Nxg5 Bc8 42.N3e4 Rg6 43.Kg1 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Van der Vliet, Fredrik"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "154"]
[ECO "A57"]

1.d4 Nf6 2.c4 g6 3.f3 c5 4.d5 b5 5.e4 d6 6.cxb5 a6 7.bxa6 Bxa6 8.Bxa6 Nxa6
9.Ne2 Bg7 10.O-O O-O 11.Bd2 Qb6 12.Bc3 Nb4 13.a3 Rfb8 14.Nd2 Na6 15.Kh1 
Qb5 16.Rc1 Nc7 17.b4 Rxa3 18.bxc5 dxc5 19.Rb1 Qe8 20.Qc2 Rb5 21.Nc4 Ra8 
22.Be5 Na6 23.d6 Rxb1 24.Rxb1 exd6 25.Bxd6 Nd7 26.Nf4 Nb4 27.Qb3 Qc8 28.
Nd5 Nxd5 29.exd5 Qa6 30.h3 h5 31.Re1 Bd4 32.Bc7 Nf6 33.d6 h4 34.Nb6 Qe2 
35.Qd1 Qxd1 36.Rxd1 Ra7 37.Nc8 Rb7 38.Ne7+ Kf8 39.Nc6 Ke8 40.Nxd4 cxd4 41.
Rxd4 Kd7 42.Rxh4 Ne8 43.Rd4 Rb5 44.Kh2 Rc5 45.Rf4 Nxc7 46.Rxf7+ Kxd6 47.
Rf6+ Ne6 48.Rxg6 Ke7 49.Rg4 Kf6 50.Ra4 Rc2 51.h4 Kf5 52.Ra5+ Kg6 53.Kg3 
Ng7 54.Ra6+ Kf5 55.Kh3 Rc3 56.g4+ Ke5 57.Kg3 Ne6 58.Ra5+ Kf6 59.Rf5+ Kg7 
60.Rd5 Rc1 61.Re5 Kf6 62.Rf5+ Kg6 63.Ra5 Kg7 64.Ra7+ Kf6 65.Rh7 Kg6 66.Rh8
Kg7 67.Ra8 Kf6 68.Ra7 Rb1 69.Ra6 Rc1 70.Ra3 Rg1+ 71.Kf2 Rb1 72.Ra4 Rb2+ 
73.Kg3 Rb3 74.Rc4 Rd3 75.Rc6 Kf7 76.Rc1 Nd4 77.Rf1 Kf6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Van der Wiel, John"]
[Black "Van Wijgerden, Cornelis"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "67"]
[ECO "B09"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5 6.Bb5+ Bd7 7.Bxd7+ Nfxd7 8.Be3
cxd4 9.Bxd4 Nf6 10.e5 dxe5 11.fxe5 Nd5 12.e6 f6 13.Qe2 Nxc3 14.Bxc3 O-O 
15.h4 f5 16.Bxg7 Kxg7 17.h5 Nc6 18.Kf1 Qb6 19.c3 Rad8 20.Rh4 Rd6 21.hxg6 
hxg6 22.Ng5 Qa6 23.c4 Qa5 24.Rh7+ Kf6 25.Qf2 Rd4 26.Nf3 Re4 27.Rd1 Qxa2 
28.Nd2 Rg4 29.Re1 Ne5 30.Qc5 Rf4+ 31.Kg1 Nc6 32.Qe3 Rd4 33.Qh6 Rdd8 34.
Qh4+ 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.05"]
[Round "1"]
[White "Vogel, Jaap"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2315"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "80"]
[ECO "E18"]

1.Nf3 Nf6 2.d4 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.c4 O-O 7.Nc3 d5 8.Ne5 Na6 
9.b3 c5 10.Bb2 Qc7 11.Nb5 Qc8 12.e3 dxc4 13.bxc4 Rd8 14.Rc1 Nb4 15.Bxb7 
Qxb7 16.a3 Na6 17.Qf3 Qxf3 18.Nxf3 Rdc8 19.Rfd1 cxd4 20.exd4 Nc7 21.Nc3 
Nce8 22.Ne5 Nd6 23.Ne2 Rc7 24.a4 Rac8 25.Ba3 Bf8 26.Rc2 Nd7 27.Nxd7 Rxd7 
28.c5 Nb7 29.c6 Bxa3 30.Rc3 Rdd8 31.cxb7 Rxc3 32.Nxc3 Rb8 33.Nb5 Be7 34.
Nxa7 Rxb7 35.Nb5 g6 36.Rc1 Rb8 37.Rc6 Ra8 38.Rc4 h5 39.Kg2 Kg7 40.Kf3 Kf6 
1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Carlier, Bruno"]
[Black "Bohm, Hans"]
[Result "1-0"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "133"]
[ECO "B10"]

1.e4 c6 2.d3 e5 3.Nf3 Be7 4.Nbd2 d6 5.g3 f5 6.exf5 Nh6 7.Bg2 O-O 8.O-O 
Bxf5 9.Nc4 Nd7 10.Bxh6 gxh6 11.d4 e4 12.Nfd2 d5 13.Ne3 Be6 14.c3 Bg5 15.
Qb3 Qb6 16.Rae1 Rf6 17.f4 exf3 18.Nxf3 Raf8 19.Qc2 Qc7 20.Qe2 Qd6 21.Qd3 
R6f7 22.Re2 Bf6 23.Ref2 Bd8 24.Qd2 b6 25.b4 Bf6 26.Nc2 Kg7 27.Nce1 Bf5 28.
Nd3 Be4 29.Nf4 Kg8 30.Bh3 Bxf3 31.Rxf3 Bg5 32.Qe2 Rf6 33.R3f2 Kh8 34.Qg4 
Bxf4 35.Rxf4 Rxf4 36.Rxf4 Rxf4 37.gxf4 Nf6 38.Qf5 Kg7 39.Bg2 Qe7 40.Qe5 
Kf7 41.Bf3 a5 42.a3 axb4 43.axb4 b5 44.Kf2 Ke8 45.f5 Kd7 46.Ke2 Qd6 47.h4 
Qe7 48.Ke3 Qd6 49.Kf4 Kc7 50.Ke3 Kd7 51.Kd3 Qe7 52.Ke3 Ne8 53.Bh5 Nd6 54.
f6 Nc4+ 55.Kf4 Nxe5 56.fxe7 Ng6+ 57.Kf5 Nxe7+ 58.Kf6 Kd6 59.Be8 Nc8 60.h5 
Nb6 61.Kg7 Na4 62.Kxh6 Ke7 63.Kxh7 Kf8 64.Bxc6 Nxc3 65.h6 Kf7 66.Be8+ Kf8 
67.Bd7 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Kuijpers, Franciscus"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "87"]
[ECO "B33"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 d6 7.Bf4 e5 8.Bg5 
a6 9.Na3 b5 10.Nd5 Be7 11.Bxf6 Bxf6 12.c3 O-O 13.Nc2 Bg5 14.a4 bxa4 15.
Rxa4 a5 16.Bc4 Kh8 17.O-O f5 18.exf5 Bxf5 19.Nce3 Bd7 20.Bd3 Ne7 21.Qh5 g6
22.Qxg5 Nxd5 23.Qxd8 Rfxd8 24.Ra2 Be6 25.Nxd5 Bxd5 26.c4 Be6 27.Rfa1 Rdb8 
28.f3 Rb4 29.Rxa5 Rxa5 30.Rxa5 Bxc4 31.Bxc4 Rxc4 32.Rd5 Rc6 33.Kf2 Rb6 34.
Rd2 Kg7 35.Ke3 Kf6 36.f4 Rb3+ 37.Kf2 d5 38.Rxd5 Rxb2+ 39.Kf3 Rb3+ 40.Kf2 
exf4 41.g3 Rb2+ 42.Kf3 Rxh2 43.Kxf4 Rf2+ 44.Kg4 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Ligterink, Gert"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "59"]
[ECO "D85"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Be3 
O-O 9.Be2 cxd4 10.cxd4 Qa5+ 11.Nd2 Rd8 12.Rc1 Nc6 13.d5 Nd4 14.O-O Nxe2+ 
15.Qxe2 e6 16.Nb3 Qa3 17.Rfd1 exd5 18.exd5 Qb2 19.Rd2 Qe5 20.Qd1 b6 21.Bd4
Qh5 22.Qxh5 gxh5 23.Bxg7 Kxg7 24.d6 Be6 25.Nd4 Rac8 26.Rc7 Kf6 27.Nxe6 
Kxe6 28.Re7+ Kf6 29.g3 Rc6 30.Rxa7 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Ree, Hans"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "57"]
[ECO "A16"]

1.c4 Nf6 2.Nf3 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Qa4+ Bd7 6.Qh4 Nxc3 7.dxc3 Nc6 8.
e4 e5 9.Qg3 f6 10.Be3 Bd6 11.Nd2 Qe7 12.Bc4 Nd8 13.f3 Bc5 14.Qf2 Bxe3 15.
Qxe3 Ne6 16.O-O-O Qc5 17.Qxc5 Nxc5 18.b4 Na4 19.Kc2 a5 20.a3 Nb6 21.Bb3 
Ke7 22.Nf1 Rhc8 23.Ne3 axb4 24.axb4 c5 25.Kb2 cxb4 26.cxb4 Be6 27.Rc1 Rxc1
28.Rxc1 Rd8 29.Rc7+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Scheeren, Peter"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "80"]
[ECO "A64"]

1.d4 e6 2.c4 Nf6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O Re8 10.Nd2 a6 11.a4 Nbd7 12.h3 Rb8 13.Nc4 Ne5 14.Na3 Nh5 15.e4 Rf8 
16.g4 Qh4 17.gxh5 Bxh3 18.h6 Bh8 19.Ne2 f5 20.exf5 Rxf5 21.Ng3 Rbf8 22.
Nxf5 Rxf5 23.Qb3 Bxg2 24.Kxg2 Qe4+ 25.f3 Nxf3 26.Qxf3 Rxf3 27.Rxf3 Qe2+ 
28.Rf2 Qg4+ 29.Kf1 Qd1+ 30.Kg2 Bd4 31.Rb1 Qg4+ 32.Kf1 Qd1+ 33.Kg2 Qg4+ 34.
Kf1 b5 35.axb5 axb5 36.Ra1 Bxf2 37.Kxf2 Qa4 38.Rb1 Qh4+ 39.Ke2 Qe4+ 40.Kd1
Qf3+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Van Wijgerden, Cornelis"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "37"]
[ECO "A34"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 e6 4.g3 d5 5.cxd5 Nxd5 6.Nxd5 exd5 7.Bg2 Nc6 8.O-O
d4 9.e3 Be7 10.exd4 cxd4 11.b3 O-O 12.Bb2 Bf5 13.Qe2 Bf6 14.Qb5 Qd7 15.
Rfe1 a6 16.Qb6 Rfc8 17.Rac1 h6 18.Qc5 Re8 19.Rxe8+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.06"]
[Round "2"]
[White "Van der Sterren, Paul"]
[Black "Vogel, Jaap"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "105"]
[ECO "C19"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.a4 Qc7 8.Nf3 b6 
9.Bb5+ Nec6 10.O-O h6 11.Re1 Bd7 12.Nh4 Na5 13.Qg4 g5 14.Ng6 Rg8 15.Nf4 
Nbc6 16.dxc5 Rh8 17.cxb6 axb6 18.Nh5 O-O-O 19.Qe2 Kb7 20.Ba3 Bc8 21.Rad1 
Ka7 22.Nf6 Bb7 23.Qe3 Ba6 24.Bb4 Bxb5 25.axb5 Nxb4 26.cxb4 Nc4 27.Qf3 Kb7 
28.Ra1 Nxe5 29.Qg3 Ra8 30.Ra6 Nd7 31.Nxd7 Qxd7 32.Qd3 Rhc8 33.Rea1 Rxa6 
34.Rxa6 Ra8 35.Qa3 Qc8 36.h3 Qb8 37.g3 Rxa6 38.Qxa6+ Kc7 39.Qa1 Kd7 40.Qf6
Qf8 41.c3 Kc7 42.Kg2 Kd6 43.Kf3 Kd7 44.Kg4 Qe7 45.Qxh6 f6 46.Qh8 e5 47.Kf3
Qe6 48.Qg7+ Ke8 49.Qc7 Qxh3 50.Qxb6 Qf5+ 51.Ke3 Qe4+ 52.Kd2 d4 53.Qc6+ 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Bohm, Hans"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "25"]
[ECO "A33"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.Bg5 Be7 7.e3 Qa5 8.Nb5 
O-O 9.a3 d5 10.b4 Qd8 11.cxd5 Nxd5 12.Bxe7 Ncxe7 13.Qb3 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Langeweg, Christian"]
[Black "Kuijpers, Franciscus"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "55"]
[ECO "E59"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bd3 e5 12.Qc2 Re8 13.e4 exd4 14.cxd4 Bg4 15.e5 
Bxf3 16.exf6 Nxd4 17.Bxh7+ Kh8 18.fxg7+ Kxg7 19.Bb2 Rad8 20.Rfc1 Rh8 21.
Qxc5 Qxc5 22.Rxc5 Kxh7 23.Bxd4 Rhg8 24.Be5 Rxg2+ 25.Kf1 Rg6 26.Rc3 Bg2+ 
27.Ke2 Re8 28.Re3 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Timman, Jan"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[WhiteElo "2600"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "56"]
[ECO "D29"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7 
9.Rd1 Nbd7 10.Nc3 Qb8 11.d5 Nxd5 12.Nxd5 Bxd5 13.Bxd5 exd5 14.Rxd5 Be7 15.
e4 Qc7 16.b3 O-O 17.Bb2 Rfe8 18.Rc1 Rad8 19.Nd4 g6 20.Qf3 Bf8 21.Ne2 Ne5 
22.Rxe5 Rxe5 23.Qf6 Qd7 24.h4 Bg7 25.Qf3 Ree8 26.Bxg7 Kxg7 27.Rxc5 Qd1+ 
28.Kh2 Qd6+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Van Dop, Arend"]
[Black "Ligterink, Gert"]
[Result "0-1"]
[WhiteElo "2320"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "66"]
[ECO "A32"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.Nf3 cxd4 5.Nxd4 Bb4+ 6.Bd2 Qb6 7.Bxb4 Qxb4+ 8.
Nc3 a6 9.Qb3 Qc5 10.e3 Nc6 11.O-O-O O-O 12.Be2 d5 13.cxd5 exd5 14.Kb1 Na5 
15.Qc2 b5 16.Bf3 Nc4 17.Nb3 Qb6 18.Nxd5 Nxd5 19.Bxd5 Bb7 20.Bxb7 Qxb7 21.
Nd4 Rfc8 22.Qe2 a5 23.h4 a4 24.h5 h6 25.Qg4 Nd2+ 26.Rxd2 Qxh1+ 27.Rd1 Qd5 
28.Nf5 Qe5 29.Rd5 Qf6 30.Rd6 Rc4 31.f4 Rac8 32.a3 Rc1+ 33.Ka2 Qxb2+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Van der Vliet, Fredrik"]
[Black "Van Wijgerden, Cornelis"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "34"]
[ECO "E08"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Be7 6.Bg2 O-O 7.O-O Nbd7 8.Rd1 Ne4
9.b3 f5 10.e3 Qe8 11.Ba3 Bxa3 12.Nxa3 Qh5 13.Ne5 Rf6 14.Bf3 Qh3 15.Bg2 Qh5
16.Bf3 Qh3 17.Bg2 Qh5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Van der Wiel, John"]
[Black "Scheeren, Peter"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "74"]
[ECO "C92"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Bb7 10.d4 Re8 11.dxe5 Nxe5 12.Nxe5 dxe5 13.Qf3 c5 14.Nd2 c4 15.Bc2 
Qb6 16.Nf1 g6 17.Nh2 Kg7 18.Ng4 Nxg4 19.hxg4 h6 20.b3 cxb3 21.Bxb3 Rf8 22.
Qg3 Qc7 23.Bb2 Rfd8 24.c4 Bf6 25.cxb5 axb5 26.Rac1 Qe7 27.Rc3 Rd2 28.Rec1 
Rxb2 29.Rc7 Rc8 30.Rxc8 Bxc8 31.Rxc8 Bh4 32.Qf3 Rxf2 33.Qe3 Rf4 34.Rc2 Qg5
35.Kh2 Qxg4 36.Rc7 h5 37.g3 Rf3 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.07"]
[Round "3"]
[White "Vogel, Jaap"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "115"]
[ECO "A81"]

1.Nf3 e6 2.g3 f5 3.Bg2 Nf6 4.b3 Be7 5.Bb2 O-O 6.O-O d6 7.d4 Qe8 8.Nbd2 Bd8
9.a4 a5 10.Nc4 Nc6 11.Ne1 Bd7 12.Nd3 g5 13.f3 Nh5 14.e4 f4 15.g4 Ng7 16.
Qd2 b6 17.d5 Ne7 18.Rfe1 e5 19.Ndxe5 dxe5 20.Nxe5 Ng6 21.Nxd7 Qxd7 22.Bf1 
Nh4 23.Qc3 Rf7 24.Bc4 Qd6 25.Kh1 Qb4 26.Qd3 Qc5 27.Re2 Qd6 28.e5 Qg6 29.
Qc3 Kh8 30.Rae1 Rf8 31.Ba3 Re8 32.Bd3 Qf7 33.Bb5 Rg8 34.e6 Qf6 35.Qd3 Be7 
36.Bc1 Bb4 37.Rd1 Qc3 38.Qxc3 Bxc3 39.Rd3 Bf6 40.Ba3 Ne8 41.Bc6 Rb8 42.c4 
Ng6 43.Kg2 Ne7 44.h4 Nd6 45.h5 Nxc6 46.dxc6 Rge8 47.Bxd6 cxd6 48.Rxd6 Be7 
49.Rd7 Kg7 50.c7 Rbc8 51.Re4 Kf6 52.Kf1 Rg8 53.Ke2 Rge8 54.Kd3 Kg7 55.Kd4 
Kg8 56.Kd5 Bc5 57.Re5 h6 58.Rf5 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Bohm, Hans"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "80"]
[ECO "E32"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 b6 5.Bg5 Bb7 6.f3 h6 7.Bh4 Nc6 8.O-O-O 
Bxc3 9.Qxc3 Qe7 10.Kb1 d6 11.e3 e5 12.Bd3 g5 13.Be1 e4 14.fxe4 Nxe4 15.Qc2
f5 16.Ne2 O-O-O 17.Rf1 Rhf8 18.g4 Rde8 19.gxf5 Nf6 20.d5 Ne5 21.h3 g4 22.
Nf4 Nxd3 23.Qxd3 Qxe3 24.Ne6 Qxd3+ 25.Rxd3 Rf7 26.Rg1 h5 27.Bc3 Rg8 28.
hxg4 hxg4 29.Rdg3 b5 30.Bxf6 Rxf6 31.Rxg4 Rxg4 32.Rxg4 bxc4 33.Rg8+ Kd7 
34.Rg7+ Kc8 35.Rg8+ Kd7 36.Rg7+ Kc8 37.Rxc7+ Kb8 38.Rxc4 Rxf5 39.Nf4 Bxd5 
40.Rd4 Bc6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Carlier, Bruno"]
[Black "Timman, Jan"]
[Result "0-1"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "62"]
[ECO "B25"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5 7.Nh3 Nge7 8.O-O Nd4 
9.Bd2 h5 10.f5 gxf5 11.Ne2 fxe4 12.Nxd4 cxd4 13.Ng5 Bg4 14.Qe1 e3 15.Nxf7 
Qd7 16.Nxh8 exd2 17.Qxd2 Bxh8 18.Qh6 O-O-O 19.Rf7 Re8 20.Raf1 Qe6 21.Qh7 
e4 22.Rf8 Rxf8 23.Rxf8+ Kd7 24.Qxh8 e3 25.Rb8 Qf5 26.Rxb7+ Ke6 27.Qh6+ Ng6
28.h3 e2 29.Qd2 Qe5 30.Kf2 h4 31.gxh4 Qf6+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Kuijpers, Franciscus"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "82"]
[ECO "B92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Be2 e5 8.Nb3 Be7
9.O-O Be6 10.a4 Nbd7 11.Kh1 O-O 12.f5 Bc4 13.Bg5 h6 14.Bh4 Rfe8 15.Nd2 d5 
16.Bxc4 dxc4 17.Qe2 Bb4 18.g4 Bxc3 19.bxc3 Qc6 20.g5 hxg5 21.Bxg5 Nc5 22.
Bxf6 gxf6 23.a5 Rad8 24.Rab1 Na4 25.Qe3 Kf8 26.Rb4 Rd7 27.Rfb1 Red8 28.
Rxc4 Qd6 29.Nf1 Qa3 30.Kg2 Nb2 31.Rb4 Nd1 32.Qh6+ Ke8 33.Rb6 Nxc3 34.R1b3 
Qe7 35.Qh8+ Qf8 36.Qxf8+ Kxf8 37.Rxc3 Rd4 38.Ng3 Rd2+ 39.Kh3 Kg7 40.Nh5+ 
Kh6 41.Nxf6 Kg5 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Ree, Hans"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "125"]
[ECO "E33"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6 6.Bd2 Qe7 7.a3 Bxc3 8.Bxc3 
O-O 9.e3 e5 10.dxe5 Nxe5 11.Nxe5 dxe5 12.Be2 a5 13.b3 b6 14.O-O Bb7 15.
Rfd1 Ne4 16.Bb2 Nc5 17.b4 axb4 18.axb4 Rxa1 19.Bxa1 Na6 20.Qb2 Nxb4 21.
Qxe5 Qxe5 22.Bxe5 Na6 23.f3 Re8 24.Kf2 f6 25.Bg3 Re7 26.h4 Nc5 27.Bh2 h5 
28.Rd8+ Kh7 29.e4 g6 30.Rb8 Kg7 31.Bf4 Bc6 32.Be3 Ne6 33.g3 Kf7 34.Bf1 Kg7
35.Bh3 Kf7 36.Bh6 Re8 37.Rxe8 Bxe8 38.Bd2 Ba4 39.Ke3 Bc2 40.Bb4 Bb3 41.Bf1
Bc2 42.Be2 Bb3 43.Bc3 Bc2 44.Bb2 Nc5 45.Bc3 Ne6 46.Ba1 Nc5 47.Bb2 Ne6 48.
g4 Ng7 49.Bd4 Bb3 50.Kd2 Ba4 51.Bf2 Ke6 52.Bg3 c6 53.Bf4 Kf7 54.Be3 b5 55.
Kc3 Ke7 56.Bh6 Kf7 57.Bxg7 Kxg7 58.gxh5 gxh5 59.Kb4 Bc2 60.cxb5 cxb5 61.
Kxb5 Bb1 62.Kc5 Bc2 63.Kd4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Scheeren, Peter"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "101"]
[ECO "A63"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O Nbd7 10.Bf4 Qe7 11.e4 a6 12.a4 Rb8 13.Re1 Ng4 14.Nd2 Nde5 15.h3 g5 
16.Bxe5 Nxe5 17.Qe2 Bd7 18.Nf1 c4 19.Ne3 Nd3 20.Rf1 b5 21.axb5 axb5 22.Ra7
Qd8 23.Qh5 Bd4 24.Rxd7 Qxd7 25.Nf5 Bxc3 26.Qxg5+ Kh8 27.bxc3 f6 28.Qe3 Qc7
29.Rb1 Qc5 30.Qh6 Rf7 31.Kh2 Rg8 32.Qe3 Rb8 33.Qh6 Nxf2 34.Nd4 b4 35.Nc6 
Rg8 36.cxb4 Qb6 37.Rc1 Nd3 38.Rc2 Rg6 39.Qd2 Rfg7 40.g4 h5 41.Bf3 Ne5 42.
Nxe5 fxe5 43.Rxc4 Rf7 44.Kg2 Rf4 45.Qc1 hxg4 46.Rc8+ Rg8 47.Rxg8+ Kxg8 48.
Qc8+ Kg7 49.Qd7+ Rf7 50.Qxg4+ Kh7 51.Qh4+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Van Wijgerden, Cornelis"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "86"]
[ECO "A16"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 6.bxc3 Bg7 7.Rb1 Nd7 8.
Nf3 Nb6 9.O-O O-O 10.Qc2 Bd7 11.d3 Ba4 12.Qd2 Bc6 13.c4 e5 14.Nh4 Qd7 15.
Qb4 Rfe8 16.Bxc6 Qxc6 17.Be3 Rab8 18.Qb5 Qe6 19.a4 Nc8 20.Nf3 Nd6 21.Qb3 
b6 22.Rfc1 Nf5 23.Bd2 c5 24.e4 Ne7 25.a5 Nc6 26.axb6 axb6 27.Bc3 Red8 28.
Qc2 Bh6 29.Rd1 Rd7 30.Qe2 Ra7 31.Ra1 Rxa1 32.Rxa1 Qd6 33.Ne1 Bg7 34.Nc2 
Rd8 35.Rd1 Bh6 36.Kg2 Ra8 37.Ne1 Bg7 38.Qb2 Rb8 39.Ra1 Bh6 40.Ra3 Qc7 41.
Nf3 f6 42.Qa2 Bf8 43.Ne1 Qd6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.08"]
[Round "4"]
[White "Van der Sterren, Paul"]
[Black "Van der Wiel, John"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "72"]
[ECO "E24"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 Qa5 7.Bd2 d6 8.e4 Nc6
9.Bd3 cxd4 10.cxd4 Qb6 11.Ne2 e5 12.Rb1 Qc7 13.d5 Nb8 14.Nc3 Bd7 15.Nb5 
Bxb5 16.cxb5 Nbd7 17.O-O O-O 18.a4 Nc5 19.Be2 Qe7 20.Re1 Nfd7 21.Qc2 Rac8 
22.Rbc1 Kh8 23.Bf1 f5 24.exf5 Qf7 25.Bg5 Rce8 26.g4 g6 27.fxg6 Qxf3 28.Re3
Qxg4+ 29.Rg3 Qe4 30.Rh3 Rxf1+ 31.Kxf1 Kg7 32.Rxh7+ Kxg6 33.Rxd7 Nd3 34.Be7
Qf5+ 35.Kg1 Rg8 36.Rf1 Kh5+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Langeweg, Christian"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "79"]
[ECO "E43"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.e3 Bb4 6.Bd3 Ne4 7.O-O Bxc3 8.bxc3 
f5 9.Ne1 O-O 10.f3 Ng5 11.Nc2 d6 12.a4 Nd7 13.a5 e5 14.Be2 Ne6 15.a6 Bc8 
16.Nb4 Nf6 17.dxe5 dxe5 18.Nc6 Qe8 19.Nxe5 Bxa6 20.Ba3 c5 21.Bc1 Bb7 22.
Qc2 Nd7 23.Nd3 Qf7 24.Rd1 Nc7 25.Bf1 Rfd8 26.Nf4 Re8 27.Qf2 Ne5 28.Qg3 Re7
29.Ra2 Nxc4 30.Qh4 Nxe3 31.Bxe3 Rxe3 32.Rad2 Rae8 33.Rd7 R3e7 34.Rxe7 Qxe7
35.Bc4+ Nd5 36.Qxe7 Rxe7 37.Nxd5 Bxd5 38.Rxd5 g6 39.Rxc5+ Kg7 40.Rc6 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Ligterink, Gert"]
[Black "Van Wijgerden, Cornelis"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "57"]
[ECO "D45"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.e4 dxe4 8.Nxe4 
Nxe4 9.Qxe4 e5 10.dxe5 O-O 11.Bd3 f5 12.Qe2 Nxe5 13.Nxe5 Bxe5 14.O-O Qf6 
15.Re1 Bd4 16.Bf4 Bxb2 17.Rab1 Bc3 18.Rec1 c5 19.Qf3 Rf7 20.Qd5 Be6 21.
Qxc5 Bd4 22.Qa3 Rd7 23.c5 Bd5 24.Bb5 Bc6 25.Bd6 Bxb5 26.Rxb5 Rc8 27.Rbb1 
h6 28.Qa4 Rc6 29.Rd1 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Timman, Jan"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "52"]
[ECO "C19"]

1.d4 e6 2.e4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 Bd7 8.a4 Qa5
9.Qd2 Nbc6 10.Bd3 c4 11.Be2 f6 12.O-O O-O-O 13.Re1 Nf5 14.Bf1 h5 15.Ba3 
Rdg8 16.Bb4 Qd8 17.a5 g5 18.exf6 Qxf6 19.Bc5 a6 20.Qe2 g4 21.Ne5 Nxe5 22.
Qxe5 Qxe5 23.Rxe5 Rh6 24.Rae1 Rf6 25.g3 Rgg6 26.Bg2 Ba4 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Van Dop, Arend"]
[Black "Kuijpers, Franciscus"]
[Result "1/2-1/2"]
[WhiteElo "2320"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "40"]
[ECO "E05"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7 6.O-O O-O 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bd2 Be4 11.Qc1 Nbd7 12.Ba5 Rc8 13.Nbd2 Ba8 14.Qc2 Nb8 15.Nb3 
Nc6 16.Bd2 Nb4 17.Bxb4 Bxb4 18.Rfc1 Bd6 19.Nc5 a5 20.e3 Re8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Van der Vliet, Fredrik"]
[Black "Scheeren, Peter"]
[Result "1-0"]
[WhiteElo "2380"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "79"]
[ECO "E69"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nf3 d6 6.O-O Nbd7 7.Nc3 e5 8.e4 c6 
9.h3 Qb6 10.Re1 Re8 11.d5 a5 12.Rb1 Nc5 13.Be3 Qc7 14.Nd2 Bd7 15.Bf1 Reb8 
16.dxc6 Bxc6 17.Qc2 Ne6 18.Rbc1 Rc8 19.Qb1 Nd7 20.Nd5 Qd8 21.Red1 Ndc5 22.
b3 Rcb8 23.Re1 Nd4 24.Bxd4 exd4 25.Nf3 Bd7 26.Rcd1 d3 27.Kg2 b5 28.Bxd3 b4
29.Bc2 a4 30.bxa4 Nxa4 31.Bb3 Nc3 32.Nxc3 Bxc3 33.Re3 Qf6 34.c5 Rd8 35.
Rxd6 Qe7 36.Qd1 Be6 37.e5 Rdc8 38.Bxe6 fxe6 39.Qb3 Re8 40.Red3 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Van der Wiel, John"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "97"]
[ECO "B32"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 a6 6.Nd6+ Bxd6 7.Qxd6 Qf6 8.
Qd1 Qg6 9.Nc3 d5 10.Nxd5 Qxe4+ 11.Be3 Nd4 12.Nc7+ Ke7 13.Qd3 Nxc2+ 14.Kd2 
Qxd3+ 15.Bxd3 Nxe3 16.Nxa8 Nd5 17.Rac1 Ngf6 18.Nc7 Nf4 19.Rhe1 Nxd3 20.
Kxd3 Bd7 21.Rxe5+ Kd6 22.Rec5 Bc6 23.Rxc6+ bxc6 24.Nxa6 Ra8 25.Nb4 c5 26.
Nc2 Rxa2 27.Na3 Nd5 28.Kc2 Nb4+ 29.Kb1 Kc6 30.Rc3 Kd6 31.Rf3 Ke6 32.Re3+ 
Kd7 33.Rb3 Kc6 34.Rf3 f6 35.Rh3 h6 36.Rg3 c4 37.Rg4 Kd5 38.Nc2 Ra4 39.b3 
cxb3 40.Nxb4+ Kd6 41.Kb2 g5 42.Rc4 h5 43.h3 Ke6 44.Kxb3 Ra1 45.Nd3 Rh1 46.
Kc3 Rh2 47.Ne1 f5 48.f3 Kf6 49.Kd3 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.10"]
[Round "5"]
[White "Vogel, Jaap"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2315"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "44"]
[ECO "D02"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d4 e6 5.O-O cxd4 6.Nxd4 Bc5 7.Nb3 Bb6 8.c4 
Nge7 9.Nc3 dxc4 10.Qxd8+ Bxd8 11.Nd2 Na5 12.Nb5 Nf5 13.e4 Bd7 14.Na3 Nd4 
15.Ndxc4 Nxc4 16.Nxc4 Bc7 17.Rd1 e5 18.h3 O-O-O 19.Ne3 Bb5 20.Nd5 Be2 21.
Bg5 Bxd1 22.Bxd8 Rxd8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Bohm, Hans"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "112"]
[ECO "E72"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3 O-O 6.Bg2 Nc6 7.Nge2 Re8 8.O-O e5 
9.d5 Nd4 10.Be3 Nxe2+ 11.Qxe2 Ng4 12.Bd2 c5 13.dxc6 bxc6 14.Rad1 Qe7 15.b3
Be6 16.Bc1 Red8 17.Rd3 Nh6 18.Rfd1 f6 19.Ba3 Nf7 20.c5 dxc5 21.Na4 Rxd3 
22.Rxd3 Bf8 23.Bxc5 Qc7 24.Qd2 Rd8 25.Rxd8 Nxd8 26.h4 Nf7 27.Bxf8 Kxf8 28.
Nc5 Ke7 29.Bf1 Qd8 30.Qc1 Qb6 31.Qc3 Nd8 32.Ba6 Bg4 33.Bd3 Ne6 34.b4 Kd6 
35.Nxe6 Bxe6 36.Bc4 Qd4 37.Qxd4+ exd4 38.Bxe6 Kxe6 39.f3 Kd6 40.Kf2 c5 41.
bxc5+ Kxc5 42.Ke2 Kc4 43.f4 d3+ 44.Kd2 Kd4 45.e5 fxe5 46.fxe5 Kxe5 47.Kxd3
Kf5 48.Ke3 Kg4 49.Kf2 a5 50.a4 Kh3 51.Kf3 h6 52.Kf2 Kh2 53.Kf3 Kg1 54.Kf4 
Kg2 55.g4 Kh3 56.g5 hxg5+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Carlier, Bruno"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "94"]
[ECO "A07"]

1.g3 d5 2.Bg2 Nf6 3.d3 g6 4.Nf3 Bg7 5.O-O O-O 6.Nbd2 Nc6 7.c3 a5 8.a4 e5 
9.Qc2 h6 10.e4 dxe4 11.dxe4 Be6 12.Rd1 Qe7 13.b3 Rfd8 14.Ba3 Qe8 15.Nf1 
Bf8 16.Rxd8 Rxd8 17.b4 Bc4 18.b5 Na7 19.N3d2 Bd3 20.Qb3 Bxa3 21.Qxa3 Qf8 
22.Ne3 Nc8 23.c4 Qxa3 24.Rxa3 Be2 25.Nd5 Ne8 26.Bf3 Bxf3 27.Nxf3 f6 28.c5 
Kf7 29.Kf1 Ne7 30.Ne3 Ng7 31.Nc4 Ne6 32.Rc3 Rd1+ 33.Ke2 Ra1 34.Nxa5 Rxa4 
35.Nc4 Nc8 36.Ncd2 Ra5 37.Ne1 Rxb5 38.Nd3 Ne7 39.f4 Nc6 40.Nc4 exf4 41.
gxf4 Rb1 42.Ke3 Ncd4 43.Nd2 Rh1 44.Nf3 Nxf3 45.Kxf3 Rxh2 46.f5 gxf5 47.
exf5 Nd4+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Kuijpers, Franciscus"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "72"]
[ECO "B64"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.f4 h6 10.Bh4 Bd7 11.Nf3 Qa5 12.Kb1 Rfc8 13.Bd3 b5 14.Ne2 b4 15.Nc1 
e5 16.f5 d5 17.Nb3 Qc7 18.Bxf6 Bxf6 19.exd5 Ne7 20.Ba6 Nxf5 21.Bxc8 Rxc8 
22.d6 Qc4 23.Qd3 Qxd3 24.cxd3 Nxd6 25.Rhe1 Bf5 26.Nxe5 Re8 27.Nf3 Rxe1 28.
Nxe1 Nc4 29.Nc5 Nxb2 30.Rc1 Bc3 31.Rc2 Nc4 32.Re2 Nd6 33.Ne4 Nxe4 34.dxe4 
Be6 35.Nd3 Bc4 36.Re3 a5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Ree, Hans"]
[Black "Van Wijgerden, Cornelis"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "73"]
[ECO "A86"]

1.d4 f5 2.c4 Nf6 3.Nc3 g6 4.g3 Bg7 5.Bg2 O-O 6.Nh3 e6 7.O-O d6 8.b3 c6 9.
Ba3 Qc7 10.Rc1 Rd8 11.d5 Qe7 12.Nf4 e5 13.dxc6 bxc6 14.Nfd5 Nxd5 15.cxd5 
c5 16.b4 cxb4 17.Bxb4 Na6 18.Ba5 Rd7 19.Nb5 Bb7 20.e4 Nc5 21.exf5 gxf5 22.
Bb4 Ba6 23.Nxd6 Nd3 24.Nxf5 Qxb4 25.Rb1 Qf8 26.Qg4 Kh8 27.d6 Rad8 28.Bd5 
Nc5 29.Rfd1 Bd3 30.Rxd3 Nxd3 31.Be6 Rxd6 32.Rb7 Rxe6 33.Rxg7 Rg6 34.Rxg6 
hxg6 35.Qh4+ Kg8 36.Qc4+ Kh8 37.Qh4+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Scheeren, Peter"]
[Black "Van Dop, Arend"]
[Result "1-0"]
[WhiteElo "2360"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "89"]
[ECO "D98"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O Na6 10.Qa4 Nb6 11.Qa5 c6 12.Bxa6 bxa6 13.Qxa6 Qd6 14.Rd3 Bc8 
15.Qa5 Nc4 16.Qa4 Be6 17.b3 Nxe3 18.fxe3 a5 19.e5 Qc7 20.Ne2 Rfc8 21.Rc3 
Qb6 22.Rc5 Bh6 23.Kd2 Bd5 24.Nc3 Be6 25.Rc1 Bf5 26.Qc4 Qd8 27.Rxc6 Rxc6 
28.Qxc6 Rc8 29.Qb7 Rb8 30.Qa7 Ra8 31.Qc5 Rc8 32.Qa3 Bf8 33.Na4 Rb8 34.Qc5 
Rc8 35.Qb6 Qe8 36.Qxa5 Ra8 37.Qc7 Rc8 38.Qb7 Rb8 39.Qa6 e6 40.Qc6 Bb4+ 41.
Ke2 Qf8 42.Nb6 Qh6 43.Nd7 Rd8 44.Nf6+ Kg7 45.g4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Van der Sterren, Paul"]
[Black "Van der Vliet, Fredrik"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "84"]
[ECO "B92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
Be6 9.f4 Qc7 10.Qd3 b5 11.Qg3 Nbd7 12.Be3 b4 13.Nd5 Bxd5 14.exd5 O-O 15.
fxe5 Nxe5 16.Rad1 Qxc2 17.Nd4 Qg6 18.Nf5 Rfe8 19.Qh3 Bf8 20.Rf4 a5 21.Bb6 
Rec8 22.Ne3 Nfd7 23.Bd4 Qg5 24.Rh4 h6 25.Rf1 g6 26.Ng4 h5 27.Be3 Qe7 28.
Nxe5 Nxe5 29.Qg3 Bg7 30.Re4 Rc2 31.Bg5 Qa7+ 32.Kh1 Qb7 33.Rd1 Rac8 34.h3 
Rxb2 35.Bxh5 Rcc2 36.Bf3 Rxa2 37.Qh4 Qc8 38.Rf1 b3 39.Rf4 b2 40.Bf6 Rc1 
41.Bd1 Qf8 42.Bc2 Rxc2 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.11"]
[Round "6"]
[White "Vogel, Jaap"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2315"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "108"]
[ECO "E18"]

1.d4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 e6 5.O-O Be7 6.c4 O-O 7.Nc3 Ne4 8.Bd2 Bf6
9.Rc1 c5 10.Nxe4 Bxe4 11.Bc3 Nc6 12.e3 Rc8 13.Ne5 Bxg2 14.Kxg2 cxd4 15.
exd4 d5 16.Nxc6 Rxc6 17.Bb4 Re8 18.c5 Qc7 19.Qa4 Rc8 20.Ba3 b5 21.Qxb5 
Bxd4 22.Rc2 a5 23.Rd1 Bf6 24.Rd3 h5 25.Qa4 Qe5 26.Qf4 Qe1 27.Rc1 Qe2 28.
Re3 Qa6 29.Qf3 Bg5 30.Qxh5 Bxe3 31.fxe3 Qd3 32.Rf1 Qe4+ 33.Qf3 Qxf3+ 34.
Kxf3 e5 35.Rd1 Rd8 36.g4 Rf6+ 37.Kg3 e4 38.Re1 d4 39.exd4 Rxd4 40.Re2 Rd3+
41.Kg2 Re6 42.Kf2 Kh7 43.Re3 Kg6 44.b3 f5 45.Bc1 f4 46.Rxd3 exd3 47.Kf3 
Re1 48.Bd2 Rd1 49.Bxa5 d2 50.Bxd2 Rxd2 51.Kxf4 Kf6 52.h4 Rxa2 53.g5+ Ke6 
54.h5 Rc2 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Langeweg, Christian"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "72"]
[ECO "E43"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb4 5.e3 Bb7 6.Bd3 Ne4 7.O-O Bxc3 8.bxc3 
f5 9.Ne1 Nxc3 10.Qh5+ g6 11.Qh6 Qf6 12.a4 Ne4 13.Qf4 d6 14.Bxe4 Bxe4 15.f3
Bb7 16.Bb2 Nd7 17.Nd3 O-O 18.Rfc1 Qe7 19.a5 c5 20.Qh6 Rfe8 21.Ra3 Qf8 22.
Qf4 Rac8 23.axb6 axb6 24.Ra7 Rc7 25.Rca1 Qe7 26.Qh6 Nf8 27.h4 cxd4 28.Bxd4
e5 29.Bxb6 Rxc4 30.Rxb7 Qxb7 31.Ra7 Rxh4 32.Qxf8+ Rxf8 33.Rxb7 Rc4 34.Rd7 
Rc6 35.Bc7 Rf7 36.Rd8+ Rf8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Ligterink, Gert"]
[Black "Scheeren, Peter"]
[Result "1-0"]
[WhiteElo "2455"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "73"]
[ECO "E12"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.e3 Be7 8.Bb5+ c6
9.Bd3 O-O 10.Bd2 c5 11.Qc2 h6 12.dxc5 Bxc5 13.O-O-O Nd7 14.h4 Be7 15.Nxd5 
Bxd5 16.Bc3 Nc5 17.Bh7+ Kh8 18.Ng5 f5 19.Nxe6 Nxe6 20.Bxf5 Nc7 21.e4 Rxf5 
22.exf5 Rc8 23.Rhe1 Bf6 24.Bxf6 gxf6 25.Kb1 Qf8 26.g4 Na6 27.Qd3 Bc4 28.
Qe3 Nc5 29.g5 Qg8 30.b4 Ba2+ 31.Ka1 Nb3+ 32.Kb2 Qc4 33.Qe8+ Rxe8 34.Rxe8+ 
Kg7 35.Rd7+ Qf7 36.Rxf7+ Kxf7 37.Ra8 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Timman, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "60"]
[ECO "E06"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 e6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Be7 7.O-O O-O 8.d4 
Nxc3 9.bxc3 Nd7 10.Rb1 Qc7 11.Qd3 Rd8 12.Rd1 e5 13.Qe4 Nf6 14.Qxe5 Bd6 15.
Qe3 Bf5 16.Rb2 Re8 17.Qg5 Be4 18.Bf4 Bxf4 19.Qxf4 Qxf4 20.gxf4 Nd5 21.c4 
Nxf4 22.d5 b6 23.e3 Nxg2 24.Kxg2 f5 25.a4 Rad8 26.Kg3 Rd6 27.Ng5 h6 28.
Nxe4 Rxe4 29.Rc2 Kf7 30.h3 Ke7 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Van Dop, Arend"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[WhiteElo "2320"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "160"]
[ECO "E66"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O a6 8.d5 Na5 
9.Nd2 c5 10.Qc2 Rb8 11.b3 e5 12.Bb2 b5 13.Rae1 Nh5 14.e3 Bf5 15.Nce4 Nb7 
16.f4 Re8 17.Qc1 Na5 18.Bc3 exf4 19.exf4 Bd4+ 20.Bxd4 cxd4 21.c5 dxc5 22.
Qxc5 Qb6 23.Qxb6 Rxb6 24.Rc1 Rd8 25.b4 Nc4 26.Nxc4 bxc4 27.Rxc4 Rxd5 28.
Nf2 Rd8 29.Rd1 d3 30.Rd2 Nf6 31.a3 Re6 32.Rc1 h5 33.Bf3 Ng4 34.Bxg4 hxg4 
35.Kf1 Kg7 36.Rc3 Re3 37.Nd1 Rf3+ 38.Rf2 Rxf2+ 39.Kxf2 Rh8 40.Kg1 Re8 41.
Kf1 Bd7 42.Nb2 d2 43.Kf2 Bb5 44.Re3 Rc8 45.a4 Rc2 46.Nd1 Bxa4 47.Ra3 Bb5 
48.Ke3 Kf6 49.Rc3 Ra2 50.Rc5 Ke6 51.Re5+ Kd6 52.Re4 f5 53.Rd4+ Ke6 54.Nc3 
d1=N+ 55.Rxd1 Rxh2 56.Rd2 Rh1 57.Ra2 Rg1 58.Kf2 Rf1+ 59.Kg2 Bc4 60.Ra5 Rc1
61.Na4 Kd6 62.Nc5 Rc2+ 63.Kg1 Rb2 64.Nb7+ Kc6 65.Rc5+ Kxb7 66.Rxc4 Kb6 67.
Rd4 Kb5 68.Rd6 Rxb4 69.Rxg6 Rd4 70.Kf2 a5 71.Ke3 Rd5 72.Rh6 a4 73.Rh1 a3 
74.Rb1+ Ka4 75.Ra1 Kb3 76.Rb1+ Kc2 77.Rb8 a2 78.Ra8 Kb3 79.Rb8+ Ka4 80.Rb2
Ka3 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Van Wijgerden, Cornelis"]
[Black "Kuijpers, Franciscus"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "39"]
[ECO "D35"]

1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.cxd5 exd5 6.Bg5 c6 7.e3 Bf5 8.Bd3 
Bxd3 9.Qxd3 Nbd7 10.O-O O-O 11.Rab1 a5 12.Nd2 Re8 13.Rfc1 Bd6 14.Nf1 Qe7 
15.Bh4 Qe6 16.Bg3 Bf8 17.Ne2 Ne4 18.Qb3 Ra7 19.Nf4 Qf6 20.Nd3 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Van der Vliet, Fredrik"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "81"]
[ECO "A81"]

1.Nf3 e6 2.g3 f5 3.Bg2 Nf6 4.b3 Be7 5.Bb2 O-O 6.O-O d6 7.d4 Qe8 8.Nbd2 Nc6
9.Ne1 a5 10.a3 Bd7 11.Nd3 Nd8 12.e4 fxe4 13.Nxe4 Bc6 14.Qe2 Nxe4 15.Bxe4 
Bf6 16.a4 Bxe4 17.Qxe4 Qc6 18.Qxc6 Nxc6 19.c3 e5 20.d5 e4 21.Nf4 Ne5 22.
Kg2 Nf3 23.Rfd1 Ra6 24.Rab1 Rb6 25.c4 Bxb2 26.Rxb2 Ne5 27.Rd4 g5 28.Ne6 
Rf3 29.Rxe4 Rfxb3 30.Rbe2 Rb2 31.Nxg5 Rxe2 32.Rxe2 Nxc4 33.Re7 c5 34.Nxh7 
Rb2 35.h4 Ne5 36.Nf6+ Kf8 37.Rc7 b5 38.axb5 a4 39.h5 a3 40.h6 a2 41.Ra7 
1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.12"]
[Round "7"]
[White "Van der Wiel, John"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "87"]
[ECO "C05"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.c3 c5 6.f4 Nc6 7.Ndf3 f5 8.Bd3 Be7 
9.Ne2 Nf8 10.Be3 c4 11.Bc2 b5 12.a3 Bd7 13.Rg1 h5 14.g3 a5 15.h3 b4 16.Kd2
b3 17.Bb1 Qc7 18.g4 hxg4 19.hxg4 g6 20.Ng5 Rh2 21.Qe1 Bxg5 22.fxg5 Bc8 23.
Bf4 Rxe2+ 24.Qxe2 Ra7 25.Rh1 Qf7 26.Rh8 Qg7 27.Rh6 Qg8 28.gxf5 exf5 29.e6 
Qxe6 30.Qxe6+ Bxe6 31.Bd6 Rg7 32.Bd3 cxd3 33.Re1 Nd8 34.Rh8 Rf7 35.c4 dxc4
36.d5 Kd7 37.Bxf8 Bxd5 38.Re5 Be6 39.Rxa5 Nc6 40.Rb5 Nd4 41.Rb6 Nf3+ 42.
Kd1 Nxg5 43.Bb4 f4 44.Ra8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Bohm, Hans"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "160"]
[ECO "A56"]

1.d4 Nf6 2.c4 c5 3.e3 g6 4.dxc5 Na6 5.a3 Nxc5 6.b4 Ne6 7.Bb2 Bg7 8.g3 b6 
9.Bg2 Rb8 10.Nd2 O-O 11.Qb3 Bb7 12.e4 a6 13.Ne2 d6 14.O-O b5 15.cxb5 axb5 
16.Rad1 Qb6 17.Qd3 Rfd8 18.Nd4 Nc7 19.N4b3 e5 20.Rfe1 Re8 21.Qe3 Qxe3 22.
Rxe3 d5 23.Na5 d4 24.Ree1 Na8 25.Nxb7 Rxb7 26.Bf1 Rd8 27.Nb3 Ne8 28.Na5 
Rb6 29.Rc1 Nec7 30.Rc5 f6 31.Rec1 Bh6 32.Rd1 Bf8 33.Rc2 Ne8 34.Bd3 Nd6 35.
Bc1 Rd7 36.Bd2 Rb8 37.Rdc1 Nb6 38.Rc6 Na4 39.R1c2 Kf7 40.h4 Kg8 41.Kf1 Kf7
42.Ke2 Ke8 43.f3 Kf7 44.Kd1 Ke8 45.Kc1 Rf7 46.f4 Rd7 47.fxe5 fxe5 48.Rc7 
Bg7 49.R2c6 Bf6 50.Kb1 Bd8 51.Rxd7 Kxd7 52.Rc1 Bxa5 53.bxa5 Rc8 54.Rxc8 
Kxc8 55.Bb4 Nc4 56.Kc2 Kb7 57.Kb3 Nab2 58.Bxc4 Nxc4 59.a4 Ka6 60.axb5+ 
Kxb5 61.a6 Nb6 62.a7 Ka6 63.Bd6 Kxa7 64.Bxe5 Kb7 65.Bf4 Kc6 66.Kb4 d3 67.
Kc3 Kd7 68.Kxd3 Ke6 69.Ke3 Nd7 70.Bc7 Nf8 71.Kf4 Kf7 72.Ke5 Ne6 73.Bb6 Ng7
74.Be3 Ne6 75.h5 Ng7 76.h6 Ne6 77.Kd6 Nf8 78.g4 Ne6 79.Kd7 Nf8+ 80.Kd6 Ne6
1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Carlier, Bruno"]
[Black "Van Dop, Arend"]
[Result "0-1"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "116"]
[ECO "A36"]

1.e4 c5 2.c4 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 a6 6.Nc3 Rb8 7.Nge2 d6 8.O-O e6 9.
f4 Nge7 10.g4 f5 11.exf5 exf5 12.g5 b5 13.Rb1 Be6 14.Nd5 Bxd5 15.cxd5 Nb4 
16.Nc3 a5 17.a3 Na6 18.Bd2 O-O 19.Ne2 b4 20.Qc2 Qb6 21.Qc4 Nc7 22.a4 Rbe8 
23.Rfe1 Nc8 24.b3 Qa7 25.Rbd1 Nb6 26.Qc2 c4 27.dxc4 Nxc4+ 28.Kh1 Nxd2 29.
Rxd2 Bc3 30.Red1 Bxd2 31.Rxd2 Qe3 32.h3 Na6 33.Nd4 Qe1+ 34.Kh2 Nc5 35.Ne6 
Nxe6 36.dxe6 Rc8 37.Qd3 Rfe8 38.e7 Qxe7 39.Bd5+ Kh8 40.Qa6 Rcd8 41.Qxa5 
Rb8 42.Rf2 Qe3 43.Kg2 Re7 44.Qa6 Qc5 45.Qc4 Rc8 46.Rd2 Rec7 47.Kf3 Qg1 48.
Qd4+ Qxd4 49.Rxd4 Rc3+ 50.Ke2 Rc2+ 51.Rd2 Rxd2+ 52.Kxd2 Rc5 53.Bc4 Kg7 54.
Be2 Kf8 55.Bd1 Ke7 56.Ke3 Rc1 57.Kd2 Rc3 58.a5 Kd8 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Ree, Hans"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "61"]
[ECO "D53"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.Qc2 b6 7.Bxf6 Bxf6 8.e4 
dxe4 9.Qxe4 c6 10.h4 Be7 11.O-O-O Qd6 12.g3 Nd7 13.Qc2 f5 14.Bg2 Ba6 15.
Ne2 Nf6 16.Nf4 Ne4 17.Ne5 c5 18.Bxe4 fxe4 19.Qxe4 Bf6 20.Rhe1 Rfe8 21.Nh5 
Rac8 22.Nxf6+ gxf6 23.Qg4+ Kf8 24.dxc5 Qxd1+ 25.Rxd1 fxe5 26.Rd7 Re7 27.
Rxe7 Kxe7 28.Qg7+ Kd8 29.Qh8+ Kc7 30.Qxe5+ Kb7 31.Qe4+ 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Scheeren, Peter"]
[Black "Van Wijgerden, Cornelis"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "78"]
[ECO "A42"]

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 f5 5.exf5 Bxf5 6.Nf3 Nh6 7.Be2 O-O 8.O-O 
Na6 9.d5 c5 10.Ng5 Nc7 11.Bd3 Qd7 12.Nb5 Nxb5 13.cxb5 Ng4 14.h3 Ne5 15.
Bxf5 Rxf5 16.g4 Rxg5 17.Bxg5 Rf8 18.f4 Nc4 19.Qe2 Bd4+ 20.Kh1 Ne3 21.Rf3 
Nxd5 22.Re1 Rf7 23.a4 Kg7 24.Qe4 Nf6 25.Bxf6+ exf6 26.b3 d5 27.Qe8 Qc7 28.
h4 c4 29.bxc4 dxc4 30.h5 gxh5 31.gxh5 Kh6 32.Qe4 Qc5 33.Rg3 Bf2 34.Rg5 
fxg5 35.Qe6+ Kg7 36.h6+ Kg8 37.Re5 Qf8 38.Rxg5+ Kh8 39.Qe5+ Rf6 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Timman, Jan"]
[Black "Van der Wiel, John"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "65"]
[ECO "E15"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7 7.Nc3 c6 8.Bg2 d5 
9.O-O Nbd7 10.Bf4 O-O 11.Qd3 Nh5 12.Bd2 f5 13.Qe3 Rf6 14.Ng5 Nf8 15.cxd5 
exd5 16.Qf3 Rg6 17.Nh3 Nf6 18.Qxf5 Bc8 19.Qd3 Ne6 20.Rac1 a5 21.Nf4 Nxf4 
22.Bxf4 Qd7 23.Na4 Bd8 24.Qc2 Bb7 25.Nb2 Ne4 26.Nd3 Bf6 27.Ne5 Bxe5 28.
Bxe5 Rf8 29.Rcd1 Qf5 30.f3 Nxg3 31.e4 Nxf1 32.exf5 Ne3 33.Qd3 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Van der Sterren, Paul"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "60"]
[ECO "A36"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.a3 e6 6.Rb1 a5 7.e4 Nge7 8.Nge2 O-O 
9.d3 d5 10.exd5 exd5 11.Nxd5 Nxd5 12.Bxd5 Ne5 13.Be4 Qe7 14.Qc2 Bh3 15.Be3
Rad8 16.Nf4 Qd7 17.f3 Bh6 18.Rd1 Rfe8 19.Kf2 Bxf4 20.gxf4 Nxf3 21.Bxf3 
Rxe3 22.Kxe3 Qd4+ 23.Kd2 Qxf4+ 24.Kc3 Qxf3 25.Rhe1 b5 26.cxb5 Qf6+ 27.Kb3 
Be6+ 28.Rxe6 Qxe6+ 29.Qc4 a4+ 30.Kc2 Qf5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.14"]
[Round "8"]
[White "Vogel, Jaap"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[WhiteElo "2315"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "83"]
[ECO "A07"]

1.Nf3 d5 2.g3 c6 3.Bg2 Nf6 4.d3 Bf5 5.Nbd2 e6 6.O-O h6 7.Re1 Be7 8.b3 a5 
9.Bb2 a4 10.e4 Bh7 11.bxa4 O-O 12.Rb1 Nbd7 13.Bd4 Qc7 14.c4 dxe4 15.Nxe4 
Nxe4 16.dxe4 Nc5 17.Qc2 Rfd8 18.Rbd1 Bxe4 19.Qc3 Nxa4 20.Qa1 Bxf3 21.Bxf3 
Bf8 22.Re4 Nc5 23.Rg4 f5 24.Be5 Rxd1+ 25.Bxd1 Qa5 26.Rxg7+ Bxg7 27.Bxg7 
Qe1+ 28.Kg2 Rd8 29.Qf6 Qxd1 30.Bxh6 Qd4 31.Qg6+ Kh8 32.Bg5 Rf8 33.Be7 Qg7 
34.Qh5+ Kg8 35.Bxc5 Rd8 36.Be3 Qg4 37.Qh6 Kf7 38.Bg5 Qe4+ 39.f3 Qe2+ 40.
Kh3 Qf1+ 41.Kh4 Qxc4+ 42.Kh5 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Kuijpers, Franciscus"]
[Black "Scheeren, Peter"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "112"]
[ECO "C92"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Bb7 10.d4 Re8 11.Ng5 Rf8 12.Nf3 Re8 13.Nbd2 Bf8 14.Bc2 g6 15.d5 Nb8 
16.a4 Nbd7 17.Nb3 c6 18.dxc6 Bxc6 19.axb5 axb5 20.Bg5 Qc7 21.Qe2 Reb8 22.
Nh2 Bg7 23.Bd3 h6 24.Bd2 d5 25.f3 Nh5 26.Nf1 Nf8 27.Nc5 Nf4 28.Bxf4 exf4 
29.Kh2 Qb6 30.exd5 Bxd5 31.Ne4 Nd7 32.Qd2 Be6 33.Bc2 Rxa1 34.Rxa1 b4 35.
Kh1 bxc3 36.bxc3 Qc7 37.Ra3 Nb6 38.Qe1 Nc4 39.Ra6 Qc8 40.Ra7 Rb2 41.Qa1 
Kh7 42.Bd3 Rb6 43.Qe1 Qb8 44.Ra1 Qe5 45.Qh4 Nd6 46.Nfd2 Rb8 47.Re1 Kh8 48.
Qf2 Rc8 49.Bb1 Nf5 50.Nf1 Qb5 51.Qd2 Qb8 52.Kh2 Ne3 53.Rc1 f5 54.Nf2 Rxc3 
55.Kg1 Nxf1 56.Rxc3 Nxd2 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Langeweg, Christian"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "56"]
[ECO "E12"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4 Bb7 5.e3 Be7 6.h3 c5 7.dxc5 bxc5 8.Be2 Qb6
9.O-O O-O 10.Nc3 d6 11.Qc2 Nc6 12.Rad1 Rad8 13.Rd2 h6 14.Rfd1 Rd7 15.Ne1 
Rfd8 16.Bf3 Ne8 17.Qb1 Bf6 18.Na4 Qa5 19.b3 Ne5 20.Bxe5 Bxe5 21.Nd3 Bxf3 
22.gxf3 Nf6 23.Nxe5 dxe5 24.Rxd7 Rxd7 25.Rxd7 Nxd7 26.Qe4 Kf8 27.Qc6 Ke7 
28.a3 g5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Ligterink, Gert"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "57"]
[ECO "B10"]

1.e4 g6 2.d4 c6 3.c4 d6 4.Nc3 e5 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.f4 Nd7 8.Nf3 
f6 9.Be2 Kc7 10.O-O Bd6 11.g3 Ne7 12.Be3 b6 13.Rad1 exf4 14.gxf4 Bc5 15.
Nd4 Nb8 16.Rd3 Bh3 17.Rfd1 Bd7 18.a3 Rf8 19.b4 Bxd4 20.Rxd4 f5 21.e5 a6 
22.Bf3 Ra7 23.a4 Re8 24.a5 Nc8 25.Na4 bxa5 26.bxa5 Be6 27.Nc5 Bg8 28.Bf2 
Be6 29.Bh4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Van Dop, Arend"]
[Black "Bohm, Hans"]
[Result "0-1"]
[WhiteElo "2320"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "76"]
[ECO "A41"]

1.d4 d6 2.Nf3 Bg4 3.c4 Nd7 4.Nc3 c6 5.e3 e6 6.Be2 d5 7.O-O f5 8.Qc2 g6 9.
b3 Bd6 10.Ne1 Bxe2 11.Qxe2 Qc7 12.f4 Bb4 13.Nd1 Bxe1 14.Qxe1 Ngf6 15.Ba3 
h6 16.Nf2 Kf7 17.Rc1 a5 18.Kh1 Rhe8 19.Rg1 a4 20.Bb4 axb3 21.axb3 Ra2 22.
Rf1 Rea8 23.Kg1 Qd8 24.Bc3 Ne8 25.Qd1 Qb6 26.Rb1 Nef6 27.Qd3 R8a3 28.c5 
Qb5 29.Qxb5 cxb5 30.Bb4 Ra8 31.Rfe1 Nb8 32.Red1 Nc6 33.Bd2 Rc2 34.Kf1 Raa2
35.Ke1 g5 36.g3 g4 37.Ke2 Rab2 38.Nd3 Rxd2+ 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Van Wijgerden, Cornelis"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[WhiteElo "2435"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "81"]
[ECO "A25"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Nh6 7.d3 O-O 8.O-O Be6 
9.Rb1 Qd7 10.b4 Bh3 11.b5 Bxg2 12.Kxg2 Nd8 13.e4 f5 14.f3 Ne6 15.Be3 g5 
16.Ng1 Rf7 17.Rb2 Raf8 18.Rbf2 Bf6 19.Bc1 c6 20.h3 Bd8 21.g4 Bb6 22.exf5 
Nf4+ 23.Bxf4 gxf4 24.bxc6 bxc6 25.Rc2 Rg7 26.Kh2 Kh8 27.Ne4 Be3 28.Re1 Qd8
29.Rxe3 fxe3 30.Qe1 Nxf5 31.gxf5 Rfg8 32.Ne2 Rg2+ 33.Kh1 d5 34.cxd5 cxd5 
35.Qc3 Qe7 36.N4g3 R2xg3 37.Nxg3 Rxg3 38.Qa5 Rg8 39.Qe1 d4 40.Qf1 Qg5 41.
Rh2 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Van der Vliet, Fredrik"]
[Black "Vogel, Jaap"]
[Result "1-0"]
[WhiteElo "2380"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "111"]
[ECO "A64"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O a6 10.a4 Nbd7 11.Nd2 Re8 12.h3 Rb8 13.Nc4 Nb6 14.Na3 Bd7 15.a5 Nc8 
16.Nc4 Bb5 17.Qb3 Bxc4 18.Qxc4 Nd7 19.Bd2 Ne5 20.Qa4 b5 21.axb6 Nxb6 22.
Qc2 Nbc4 23.Bc1 Na5 24.Ra2 Nec4 25.Ne4 Rb4 26.Bg5 f6 27.Bf4 Nb3 28.Rd1 g5 
29.Bc1 h6 30.e3 f5 31.Nc3 Qf6 32.Bf1 Reb8 33.Bxc4 Rxc4 34.Rxa6 Rcb4 35.Na4
f4 36.exf4 Nd4 37.Qd3 Re8 38.Nc3 Nf5 39.Ra4 Reb8 40.Rxb4 Rxb4 41.fxg5 hxg5
42.Re1 Nd4 43.Kg2 Rb8 44.Qe4 Rf8 45.Rf1 Qd8 46.Qg6 Rf5 47.Re1 Qf8 48.f4 
Rf7 49.Ne4 Qa8 50.Nxg5 Qxd5+ 51.Kf2 Kf8 52.Qxf7+ Qxf7 53.Nxf7 Kxf7 54.Bd2 
Nc2 55.Rc1 Nb4 56.Bxb4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.15"]
[Round "9"]
[White "Van der Wiel, John"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "124"]
[ECO "B85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.Be3 Be7 8.O-O 
O-O 9.f4 a6 10.Qe1 Bd7 11.Qg3 b5 12.e5 dxe5 13.fxe5 Nxd4 14.Bxd4 Bc6 15.
Be3 Ne4 16.Nxe4 Bxe4 17.Bf3 Bxf3 18.Rxf3 f5 19.exf6 Rxf6 20.Raf1 Rc8 21.c3
Rxf3 22.Qxf3 Bf6 23.Qb7 Ra8 24.Qe4 Qd5 25.Qxd5 exd5 26.Rd1 Rd8 27.Bd4 
Bxd4+ 28.Rxd4 Kf7 29.Kf2 Ke6 30.Ke3 Rd7 31.Rf4 Rd8 32.a4 bxa4 33.Rxa4 Rd6 
34.Rb4 Ke5 35.Rh4 h6 36.Rb4 Rg6 37.g3 Rf6 38.Rb7 g5 39.b4 Rc6 40.Kd3 Rf6 
41.Re7+ Kd6 42.Re2 h5 43.Kd4 Rf1 44.Ra2 Rd1+ 45.Ke3 Ke5 46.Rxa6 Re1+ 47.
Kd3 Rd1+ 48.Kc2 Rh1 49.b5 Rxh2+ 50.Kb3 h4 51.gxh4 gxh4 52.Rh6 Rh1 53.Kb4 
d4 54.cxd4+ Kxd4 55.b6 h3 56.Kb5 h2 57.b7 Rb1+ 58.Kc6 Rc1+ 59.Kd6 Rb1 60.
Rh4+ Ke3 61.Kc6 Rc1+ 62.Kd5 Rb1 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Bohm, Hans"]
[Black "Ligterink, Gert"]
[Result "0-1"]
[WhiteElo "2430"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "60"]
[ECO "E61"]

1.c4 g6 2.Nc3 Bg7 3.g3 Nf6 4.Bg2 O-O 5.e3 d6 6.Nge2 e5 7.d4 Nbd7 8.b3 Re8 
9.Ba3 e4 10.g4 Nxg4 11.Nxe4 Ndf6 12.N2g3 Nxe4 13.Bxe4 c5 14.Bb2 Qh4 15.Qd2
Rxe4 16.Nxe4 Nxh2 17.Qe2 h5 18.Kd2 Bg4 19.f3 Bxf3 20.Rxh2 Qxe4 21.Qd3 Qe7 
22.Rf1 Be4 23.Qe2 d5 24.Kc1 dxc4 25.bxc4 cxd4 26.exd4 Re8 27.Rhf2 Bh6+ 28.
Kd1 Qb4 29.d5 Qa4+ 30.Ke1 Bd3 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Carlier, Bruno"]
[Black "Van Wijgerden, Cornelis"]
[Result "0-1"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "96"]
[ECO "A03"]

1.f4 d5 2.Nf3 Bg4 3.e3 Nf6 4.Be2 Nbd7 5.c4 e6 6.O-O Bd6 7.b3 c6 8.Bb2 dxc4
9.bxc4 Bxf4 10.Bxf6 Nxf6 11.Qb3 Bd6 12.Qxb7 O-O 13.Nc3 Rc8 14.Rfd1 Qa5 15.
g3 Bb4 16.Rab1 Bxc3 17.dxc3 Qc5 18.Rd3 Bf5 19.Qb4 Qxb4 20.cxb4 Bxd3 21.
Bxd3 Rfd8 22.Rb3 Rc7 23.c5 Rb8 24.Ba6 Kf8 25.Ne5 Ke7 26.Kf2 h5 27.Ke2 Ng4 
28.Nxg4 hxg4 29.Kd3 Rd8+ 30.Kc3 f5 31.Bd3 Rd5 32.e4 Re5 33.Kd4 Kf6 34.exf5
exf5 35.a4 g5 36.Kc3 f4 37.Rb2 Rd7 38.Bc4 Re3+ 39.Kc2 Rd4 40.Bf1 Rf3 41.
Rb1 Rd5 42.Rc1 Rf2+ 43.Kb3 Rxh2 44.b5 Rd7 45.bxc6 Rc7 46.Kc4 fxg3 47.Bd3 
g2 48.Rg1 Ke5 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Ree, Hans"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "46"]
[ECO "E39"]

1.c4 Nf6 2.Nc3 e6 3.d4 Bb4 4.Qc2 c5 5.dxc5 O-O 6.a3 Bxc5 7.Nf3 Nc6 8.Bg5 
Nd4 9.Nxd4 Bxd4 10.e3 Qa5 11.exd4 Qxg5 12.g3 d6 13.Bg2 Rb8 14.O-O Bd7 15.
d5 e5 16.Qb3 Rfc8 17.Rac1 b6 18.Rfe1 Qh6 19.Rcd1 Ng4 20.h3 Nf6 21.Kh2 Ng4+
22.Kg1 Nf6 23.Kh2 Ng4+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Timman, Jan"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "61"]
[ECO "D91"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 c5 8.e3 
Nc6 9.cxd5 Qxd5 10.Be2 cxd4 11.cxd4 O-O 12.O-O b6 13.Qb3 Qxb3 14.axb3 Bb7 
15.Nd2 Rfc8 16.Bf3 e5 17.Nc4 exd4 18.Nd6 dxe3 19.Rac1 Bb2 20.Rc2 e2 21.
Bxe2 Ba3 22.Nxb7 Nd4 23.Rxc8+ Rxc8 24.Bc4 Rc7 25.Bf6 Nxb3 26.Bxb3 Rxb7 27.
Rd1 Be7 28.Be5 b5 29.Bd5 Rb6 30.Rc1 Bf6 31.Bf4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Van der Sterren, Paul"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "81"]
[ECO "C79"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nf6 7.O-O Qe7 8.Re1 g6 
9.d5 Na7 10.c4 Bg7 11.Nc3 O-O 12.Bg5 h6 13.Bh4 Qe8 14.Nd2 Nh5 15.Bxd7 Qxd7
16.b4 Nf4 17.Nb3 g5 18.Bg3 h5 19.Bxf4 exf4 20.Rc1 g4 21.Qd2 f3 22.Qg5 fxg2
23.Kxg2 Rae8 24.Nd4 Qd8 25.Qxd8 Rxd8 26.Nf5 Be5 27.h3 gxh3+ 28.Kxh3 Kh7 
29.Ne2 Rg8 30.f4 Bf6 31.Neg3 Kg6 32.e5 dxe5 33.fxe5 Bg5 34.Rcd1 Rge8 35.
Nh4+ Kh6 36.Ngf5+ Kh7 37.Nf3 Kg6 38.Rg1 Kxf5 39.Nxg5 Ra8 40.Nxf7 Re7 41.
Rde1 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Van der Wiel, John"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "55"]
[ECO "B83"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.O-O Be7 8.Be3 
O-O 9.f4 e5 10.Nb3 exf4 11.Bxf4 Be6 12.Kh1 d5 13.e5 Nd7 14.Nxd5 Ndxe5 15.
Nxe7+ Qxe7 16.Rf2 Rad8 17.Qf1 Rd5 18.h3 Qh4 19.Bh2 Rdd8 20.Nc5 Bc8 21.Nd3 
Nxd3 22.Bxd3 Be6 23.Rf4 Qg5 24.Re1 Qa5 25.a3 Ne7 26.Rb4 Rd7 27.Bg1 a6 28.
Rxe6 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.17"]
[Round "10"]
[White "Vogel, Jaap"]
[Black "Van Dop, Arend"]
[Result "0-1"]
[WhiteElo "2315"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "68"]
[ECO "D77"]

1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 d5 5.O-O O-O 6.c4 Nc6 7.Ne5 dxc4 8.Nxc6 
bxc6 9.Na3 Be6 10.Bxc6 Rb8 11.Bf3 Ne8 12.Qa4 Nd6 13.Qxa7 Qd7 14.Rd1 Bg4 
15.Qc5 Bxf3 16.exf3 Rfe8 17.Be3 Rxb2 18.Rac1 Ra8 19.Rb1 Rxb1 20.Rxb1 Qa4 
21.Rb4 Qd1+ 22.Kg2 h5 23.Nxc4 Rxa2 24.Nb2 Qe2 25.Qc1 Nf5 26.Nc4 Bh6 27.d5 
Nxe3+ 28.Kh3 Qxf2 29.Qh1 Ra1 30.Rb8+ Kh7 31.Rh8+ Kxh8 32.Qxa1+ Kh7 33.Nxe3
Qxe3 34.Qa7 Qxa7 0-1

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Kuijpers, Franciscus"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "35"]
[ECO "B00"]

1.e4 e6 2.d4 b6 3.Bd3 Bb7 4.Nf3 c5 5.c3 Nf6 6.Qe2 Be7 7.O-O O-O 8.Re1 cxd4
9.cxd4 d6 10.Nc3 Nbd7 11.Bf4 Re8 12.h3 Nf8 13.Bh2 Ng6 14.Red1 Nh5 15.Qe3 
Qb8 16.e5 dxe5 17.dxe5 h6 18.Ne4 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Langeweg, Christian"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "197"]
[ECO "D40"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Bd3 c5 8.O-O 
cxd4 9.exd4 dxc4 10.Bxc4 Nb6 11.Bb3 Bd7 12.Ne5 Rc8 13.Qd3 Nfd5 14.Bd2 Bc6 
15.Rad1 Bf6 16.Nxc6 Rxc6 17.Ne4 Be7 18.a3 Qc7 19.g3 Rd8 20.Rfe1 Nc4 21.Bc1
b5 22.Ba2 Nf6 23.Bb1 Nxe4 24.Qxe4 f5 25.Qf3 Nb6 26.Ba2 Nd5 27.Bxd5 exd5 
28.Qxf5 Bf6 29.Bg5 Qf7 30.Rc1 Rxc1 31.Rxc1 Bxg5 32.Qxg5 Rf8 33.Qd2 h6 34.
Rc5 a6 35.Rc6 Qf3 36.Rc3 Qf5 37.Qe2 Rc8 38.Rxc8+ Qxc8 39.Kg2 Qc6 40.h4 Kh8
41.Qe7 Kh7 42.b4 Qc3 43.Qe3 Qc2 44.Qe5 Qc6 45.h5 Qd7 46.Kf3 Kh8 47.Ke3 Qc6
48.Kf4 Qc1+ 49.Qe3 Qc7+ 50.Qe5 Qc1+ 51.Qe3 Qc7+ 52.Kg4 Qd7+ 53.Kh4 Qf7 54.
Kg4 Qd7+ 55.Kh4 Qf7 56.f4 Qf6+ 57.Kg4 Qc6 58.Qe5 Qc8+ 59.Kh4 Qd8+ 60.Kg4 
Qd7+ 61.f5 Qf7 62.Qe6 Qf6 63.Qxd5 Qg5+ 64.Kf3 Qxh5+ 65.Kf2 Qd1 66.Qe4 Qd2+
67.Kf3 Qc3+ 68.Qe3 Qc6+ 69.Qe4 Qc3+ 70.Qe3 Qc6+ 71.Kg4 Qc2 72.Kf4 Qc7+ 73.
Ke4 Qe7+ 74.Kf3 Qf7 75.Qe6 Qh5+ 76.Kg2 Qd1 77.d5 Qd2+ 78.Kh3 Qd1 79.Qe4 
Qh5+ 80.Kg2 Qd1 81.Qe8+ Kh7 82.Qg6+ Kh8 83.Qe6 Qd2+ 84.Kh3 Qd1 85.f6 Qh1+ 
86.Kg4 Qd1+ 87.Kh3 Qh1+ 88.Kg4 Qd1+ 89.Kf4 Qc1+ 90.Ke5 Qc7+ 91.d6 Qc3+ 92.
Ke4 Qc2+ 93.Kd4 Qf2+ 94.Qe3 Qxf6+ 95.Kc5 Qf8 96.Qe7 Qc8+ 97.Kb6 Qb8+ 98.
Ka5 Kh7 99.Qc7 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Ligterink, Gert"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "53"]
[ECO "E12"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Bxf6 Bxf6 8.cxd5 
exd5 9.g3 O-O 10.Bg2 Re8 11.O-O Na6 12.b4 c6 13.Qb3 Nc7 14.Rfd1 Ba6 15.e3 
Bc4 16.Qc2 a5 17.bxa5 Rxa5 18.Nd2 b5 19.a4 Qa8 20.Rab1 Qa7 21.Nxc4 bxc4 
22.Rb2 Ne6 23.Rdb1 Nxd4 24.exd4 Qxd4 25.Rb8 Ra8 26.Rxa8 Rxa8 27.Nxd5 
1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Scheeren, Peter"]
[Black "Van der Sterren, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "170"]
[ECO "A64"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Bg2 g6 7.Nc3 Bg7 8.Nf3 O-O 
9.O-O Nbd7 10.Nd2 a6 11.a4 Re8 12.h3 Rb8 13.Nc4 Nb6 14.Na3 Bd7 15.Bd2 Nc8 
16.Qb1 b5 17.axb5 axb5 18.b4 Bf5 19.Qb3 Ne4 20.Bxe4 Bxe4 21.Rae1 Qd7 22.
Nxe4 Rxe4 23.Kg2 Nb6 24.Nc2 c4 25.Qf3 Rbe8 26.Bc3 Bxc3 27.Qxc3 Nxd5 28.Qf3
Nc7 29.e3 d5 30.Ra1 Qd6 31.Rfd1 R4e7 32.Ra5 Rd7 33.Qg4 Qe6 34.Qf4 Qe7 35.
Qf3 Rb8 36.Nd4 Rb6 37.Rb1 Qd6 38.Qg4 h5 39.Qg5 Qe7 40.Qxe7 Rxe7 41.Rd1 Kg7
42.Rda1 Kf6 43.h4 Re8 44.Kf3 Reb8 45.Ke2 Ne6 46.Rd1 Nxd4+ 47.Rxd4 Ke6 48.
Kd2 Rd6 49.Kc3 Rbb6 50.g4 hxg4 51.Rxg4 Ke5 52.Rg5+ f5 53.h5 gxh5 54.Rxh5 
Rg6 55.Ra8 Ke4 56.Re8+ Rbe6 57.Rh4+ Ke5 58.Rb8 Ra6 59.Re8+ Rge6 60.Rxe6+ 
Rxe6 61.Rh8 f4 62.Rb8 fxe3 63.fxe3 Ra6 64.Re8+ Kd6 65.Rd8+ Kc6 66.Rc8+ Kb7
67.Rh8 Ra4 68.Rh6 Kc7 69.Rg6 Kb7 70.Rh6 d4+ 71.exd4 Ra3+ 72.Kc2 Ra2+ 73.
Kc3 Ra3+ 74.Kc2 Rb3 75.d5 Rxb4 76.Kc3 Rb3+ 77.Kd4 Rb2 78.Rg6 Rb1 79.Rh6 
Rd1+ 80.Kc5 c3 81.Rh7+ Kc8 82.Rh2 Rd2 83.Rh3 c2 84.Rc3 Kd7 85.Kxb5 Kd6 
1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Van Dop, Arend"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2320"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "38"]
[ECO "A04"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 c5 5.Nf3 cxd4 6.Nxd4 Nc6 7.Nxc6 bxc6 8.Nc3
O-O 9.O-O Rb8 10.Qa4 a5 11.Qc2 d5 12.cxd5 cxd5 13.Bf4 Bf5 14.Qc1 Rc8 15.
Be5 Qb6 16.e3 e6 17.b3 d4 18.Bxd4 Qb8 19.Qa3 e5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Van Wijgerden, Cornelis"]
[Black "Bohm, Hans"]
[Result "1-0"]
[WhiteElo "2435"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "81"]
[ECO "E72"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6 7.d4 Bd7 8.d5 Nce7 
9.e4 f5 10.O-O Nf6 11.f3 O-O 12.h3 Nh5 13.Kh2 f4 14.g4 Nf6 15.Bd2 g5 16.
Nc1 h5 17.Nd3 Ng6 18.Rh1 Nh4 19.Be1 Rf7 20.Bf2 Qc8 21.c5 hxg4 22.hxg4 
Nxg4+ 23.fxg4 Bxg4 24.Qf1 Nf3+ 25.Bxf3 Bxf3 26.Rg1 g4 27.Ne1 g3+ 28.Bxg3 
fxg3+ 29.Rxg3 Bh5 30.Qg2 Qd7 31.cxd6 cxd6 32.Nd3 Raf8 33.Rh3 Bf3 34.Qg5 
Rf6 35.Rg1 R8f7 36.Rgg3 b5 37.Ne1 Bh1 38.Kxh1 Rf1+ 39.Kh2 Rxe1 40.Qh4 Kf8 
41.Rxg7 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.18"]
[Round "11"]
[White "Van der Vliet, Fredrik"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "44"]
[ECO "A07"]

1.g3 Nf6 2.Bg2 d5 3.Nf3 c6 4.d3 Bg4 5.O-O Nbd7 6.Nbd2 e5 7.e4 Bd6 8.h3 Bh5
9.b3 O-O 10.Bb2 Re8 11.Re1 Qc7 12.c3 Nc5 13.Qc2 dxe4 14.dxe4 Bf8 15.b4 Ne6
16.Nc4 Nd7 17.a3 f6 18.Rad1 Ng5 19.Ncd2 a5 20.Rb1 Nxf3+ 21.Bxf3 Bxf3 22.
Qb3+ Kh8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Bohm, Hans"]
[Black "Kuijpers, Franciscus"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "114"]
[ECO "D36"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.cxd5 exd5 5.Nc3 Be7 6.Bg5 c6 7.Qc2 g6 8.e3 Bf5
9.Bd3 Bxd3 10.Qxd3 a5 11.Ne5 O-O 12.f4 Kg7 13.O-O Ne4 14.Bxe7 Qxe7 15.Nxe4
dxe4 16.Qa3 Qb4 17.Rfc1 Na6 18.Qxb4 Nxb4 19.a3 Nd5 20.Kf2 Rfd8 21.Rc2 h5 
22.Rac1 f6 23.Nc4 a4 24.Nd2 Re8 25.Ke2 Ra6 26.Rc4 Kf7 27.Nb1 Ke7 28.Nc3 
Nb6 29.Rb4 Kd6 30.d5 f5 31.dxc6 bxc6 32.Rd4+ Ke6 33.Rcd1 Kf7 34.g3 Re6 35.
h3 c5 36.Rd8 Nc4 37.R1d5 Nxb2 38.Rxc5 Rac6 39.Rc8 Rxc5 40.Rxc5 Rb6 41.g4 
hxg4 42.hxg4 Nd3 43.Nxa4 Rb1 44.Rc7+ Ke6 45.Rc6+ Kf7 46.gxf5 gxf5 47.Nc3 
Rb2+ 48.Kf1 Rb3 49.a4 Nb4 50.Rc5 Kg6 51.a5 Kh5 52.Nxe4 Kg4 53.Nd6 Kf3 54.
Kg1 Rxe3 55.Nxf5 Re1+ 56.Kh2 Kxf4 57.Nd6 Re6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Carlier, Bruno"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[BlackElo "2360"]
[EventDate "1980.03.05"]
[PlyCount "105"]
[ECO "B10"]

1.e4 c6 2.d3 d5 3.Nd2 g6 4.Ngf3 Bg7 5.g3 e5 6.Bg2 Nd7 7.O-O Ngf6 8.Re1 d4 
9.c3 dxc3 10.Nc4 Qc7 11.bxc3 c5 12.a4 O-O 13.Ne3 Re8 14.c4 Nb8 15.Nd5 Qd6 
16.Rb1 Nc6 17.Nd2 Nd4 18.Nb3 Rb8 19.Nxd4 cxd4 20.Bd2 Be6 21.Rb5 b6 22.a5 
Qd8 23.axb6 axb6 24.Nxb6 Nd7 25.Ba5 Nxb6 26.Qb1 Ra8 27.Bxb6 Qf6 28.Qb2 h5 
29.Bc7 Bd7 30.Rb6 Re6 31.Rb8+ Re8 32.Rxe8+ Rxe8 33.Ra1 h4 34.Qb7 h3 35.Bf1
Bg4 36.Ra8 Rxa8 37.Qxa8+ Kh7 38.c5 Qf3 39.Qa1 f5 40.Qe1 f4 41.Bd6 g5 42.
Be7 Bd7 43.Qe2 g4 44.Qc2 fxg3 45.hxg3 Bh6 46.Bd6 Qf6 47.Qa2 Bg7 48.Qa7 h2+
49.Kxh2 Qxf2+ 50.Bg2 Qf7 51.c6 Qh5+ 52.Kg1 Bxc6 53.Bf8 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Langeweg, Christian"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2380"]
[EventDate "1980.03.05"]
[PlyCount "27"]
[ECO "E12"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4 Bb7 5.e3 Be7 6.h3 c5 7.dxc5 bxc5 8.Nc3 O-O
9.Be2 d6 10.Qc2 Qa5 11.O-O Nc6 12.Rad1 Rfd8 13.Rd2 Rd7 14.Rfd1 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Ree, Hans"]
[Black "Van der Sterren, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "126"]
[ECO "B39"]

1.c4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Bg7 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Nxd4 9.Qd1 Ne6 10.Qd2 d6 11.Be2 O-O 12.O-O Nc5 13.Bh6 a5 14.Bxg7 Kxg7 15.
Rad1 f6 16.Qe3 Be6 17.b3 Qb6 18.Rd2 a4 19.Nb5 axb3 20.axb3 Qa5 21.Rb2 Qb4 
22.Nd4 Bd7 23.Nc2 Qb6 24.b4 Na4 25.Qxb6 Nxb6 26.Ne3 Bc6 27.f3 Ra3 28.Kf2 
f5 29.exf5 gxf5 30.f4 Be4 31.Nc2 Rc3 32.Nd4 Rc8 33.c5 dxc5 34.Ne6+ Kf6 35.
Nxc5 Bc6 36.g3 Nd5 37.Nd3 Bb5 38.Rd1 Rc2 39.Rd2 Bxd3 40.Bxd3 Rxd2+ 41.Rxd2
Nxb4 42.Be2 Rc2 43.Rd7 Rb2 44.h3 Ke6 45.Rd4 Nd5 46.Kf3 Kd6 47.g4 e5 48.
fxe5+ Kxe5 49.Rc4 Rb3+ 50.Kf2 Rxh3 51.Bf3 Rh2+ 52.Kg3 Rb2 53.gxf5 Nf6 54.
Rc5+ Kd6 55.Rc4 Ke5 56.Rc5+ Kd6 57.Rc4 Rb5 58.Kf4 h6 59.Rd4+ Ke7 60.Rc4 
Nd5+ 61.Bxd5 Rxd5 62.Re4+ Kf7 63.Re6 Rd1 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Timman, Jan"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2455"]
[EventDate "1980.03.05"]
[PlyCount "67"]
[ECO "A39"]

1.c4 c5 2.Nf3 Nf6 3.g3 Nc6 4.Bg2 g6 5.d4 cxd4 6.Nxd4 Bg7 7.Nc3 O-O 8.O-O 
Nxd4 9.Qxd4 d6 10.Qd3 Rb8 11.Be3 a6 12.Ba7 Ra8 13.Bd4 Rb8 14.Rfd1 Bf5 15.
Qd2 b5 16.cxb5 axb5 17.Rac1 Be6 18.b3 Qd7 19.Bxf6 Bxf6 20.Ne4 Bg7 21.Nc5 
Qc8 22.Nxe6 Qxe6 23.Rc7 Rfc8 24.Rdc1 Rxc7 25.Rxc7 b4 26.Rc4 Bc3 27.Qd3 Bf6
28.Bf3 Qe5 29.Kg2 Qa5 30.Qd2 Bc3 31.Qe3 Bf6 32.Qd2 Bc3 33.Qe3 Bf6 34.Qd2 
1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Van der Wiel, John"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2320"]
[EventDate "1980.03.05"]
[PlyCount "69"]
[ECO "B93"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 e5 8.Nf3 Be7
9.O-O Nbd7 10.a4 b6 11.fxe5 dxe5 12.Nh4 g6 13.Qf3 Bb7 14.g4 h6 15.Ng2 Rh7 
16.Ne3 Rd8 17.Bc4 Bc5 18.Ba2 Bd4 19.Bd2 Bxc3 20.Bxc3 Bxe4 21.Qf2 Qc5 22.
Rae1 Ba8 23.Nc4 Qc6 24.Qg3 Qc5+ 25.Rf2 Ne4 26.Rxe4 Bxe4 27.b4 Qe7 28.Re2 
f5 29.gxf5 gxf5 30.Qg6+ Kf8 31.Kf1 Rg7 32.Qxh6 Qg5 33.Qd6+ Ke8 34.Qe6+ Kf8
35.Qd6+ 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.19"]
[Round "12"]
[White "Vogel, Jaap"]
[Black "Van Wijgerden, Cornelis"]
[Result "1/2-1/2"]
[WhiteElo "2315"]
[BlackElo "2435"]
[EventDate "1980.03.05"]
[PlyCount "36"]
[ECO "A07"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.b3 Bf5 5.Bb2 e6 6.d3 h6 7.Nbd2 Be7 8.O-O O-O 
9.a4 Nbd7 10.a5 Qc7 11.c4 c5 12.Qc2 Rac8 13.e4 dxe4 14.Nxe4 Rfd8 15.a6 b5 
16.cxb5 Qb6 17.Qc4 Qb8 18.Rfd1 Nb6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Kuijpers, Franciscus"]
[Black "Vogel, Jaap"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2315"]
[EventDate "1980.03.05"]
[PlyCount "87"]
[ECO "C06"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 
Nb6 9.O-O Bd7 10.a3 a5 11.b3 a4 12.b4 Rc8 13.Bb2 Nc4 14.Nxc4 dxc4 15.Be4 
Be7 16.f4 f5 17.Bf3 O-O 18.Nc3 b5 19.Kh1 Kh8 20.d5 exd5 21.Bxd5 Nb8 22.Qf3
Qb6 23.Rad1 Rcd8 24.Rd2 Na6 25.Rfd1 Bc8 26.Qf2 Qb8 27.Bc6 Rxd2 28.Rxd2 Nc7
29.h3 Be6 30.Bc1 h6 31.Rd1 Rd8 32.Rxd8+ Qxd8 33.Qd2 Qb8 34.Bd7 Qb6 35.Bxe6
Nxe6 36.Kh2 Bh4 37.Qe3 Qb7 38.Qe2 Nd4 39.Qd1 Bf2 40.Qd2 Nb3 41.Qxf2 Nxc1 
42.Qc5 Kh7 43.e6 Kg6 44.Qe3 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Ligterink, Gert"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2465"]
[EventDate "1980.03.05"]
[PlyCount "28"]
[ECO "B57"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
Be7 9.Be3 Qc7 10.Bd3 a6 11.a4 b6 12.f4 Bb7 13.Qf3 Nb4 14.Qh3 Nd7 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Scheeren, Peter"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2430"]
[EventDate "1980.03.05"]
[PlyCount "85"]
[ECO "A90"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Bb4+ 5.Bd2 a5 6.Nf3 O-O 7.O-O d5 8.Bf4 Be7 
9.Nc3 c6 10.Qc2 Ne4 11.Rad1 b6 12.cxd5 exd5 13.Bxb8 Rxb8 14.Ne5 Bd7 15.
Nxe4 fxe4 16.Nxc6 Bxc6 17.Qxc6 Rf6 18.Qb5 Qd6 19.f3 exf3 20.exf3 Rd8 21.
Rfe1 Re6 22.Bh3 Rxe1+ 23.Rxe1 Bf6 24.Qa4 Kf7 25.a3 Qc7 26.Bf1 g6 27.f4 Qd7
28.Qxd7+ Rxd7 29.Rd1 Ke7 30.Kf2 Kd6 31.Rd2 Re7 32.Bg2 b5 33.Bf3 b4 34.axb4
axb4 35.h4 Re8 36.Rd3 Re7 37.Rd1 Re8 38.Bg2 Rc8 39.Rd2 b3 40.Ke3 Rc2 41.
Bf3 Rxd2 42.Kxd2 Bxd4 43.h5 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Van Dop, Arend"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2320"]
[BlackElo "2425"]
[EventDate "1980.03.05"]
[PlyCount "24"]
[ECO "E05"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bd2 Be4 11.Qc1 Qc8 12.Bg5 Nbd7 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Van Wijgerden, Cornelis"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2600"]
[EventDate "1980.03.05"]
[PlyCount "60"]
[ECO "A19"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.d4 cxd4 6.Qxd4 Nc6 7.Qe4 d6 8.Nf3 Qb6
9.exd6 Nf6 10.Qe3 Qxe3+ 11.Bxe3 Bxd6 12.O-O-O Be7 13.h3 b6 14.g4 Bb7 15.
Bg2 Na5 16.b3 Ne4 17.Nxe4 Ba3+ 18.Kd2 Bxe4 19.Nh4 O-O-O+ 20.Kc3 Bxg2 21.
Nxg2 Nc6 22.Kc2 Kb7 23.Nf4 Bc5 24.Nd3 Bxe3 25.fxe3 Kc7 26.b4 Rd7 27.Kc3 
Rhd8 28.Nf2 f5 29.Rxd7+ Rxd7 30.Nd3 Kd6 1/2-1/2

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Van der Sterren, Paul"]
[Black "Carlier, Bruno"]
[Result "1-0"]
[WhiteElo "2410"]
[EventDate "1980.03.05"]
[PlyCount "123"]
[ECO "A56"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6 6.Nf3 Bg7 7.Be2 a6 8.Bg5 Nbd7 9.
Nd2 Qc7 10.Qc2 h6 11.Be3 h5 12.O-O-O Ng4 13.Bxg4 hxg4 14.h3 gxh3 15.g4 Nf6
16.f3 Bd7 17.Rdg1 b5 18.a3 Rb8 19.cxb5 axb5 20.b4 cxb4 21.axb4 Ke7 22.Kb2 
Ra8 23.Qd3 Qb7 24.Nb3 h2 25.Rg2 Ra4 26.Na5 Rxb4+ 27.Ka3 Ra4+ 28.Nxa4 Qa8 
29.Bd2 bxa4 30.Rhxh2 Rb8 31.Bb4 Bb5 32.Qc3 Rc8 33.Qxe5+ Kf8 34.Qxd6+ Kg8 
35.Rc2 Nd7 36.Nc6 Bxc6 37.dxc6 Ne5 38.c7 Nxf3 39.Qd5 Nxh2 40.Qxa8 Rxa8 41.
Rxh2 Be5 42.Rc2 Rc8 43.Ba5 Kg7 44.Bc3 Bxc3 45.Rxc3 Kf6 46.Kxa4 Ke5 47.Kb5 
Kf4 48.Kc6 Kxg4 49.Kd7 Rxc7+ 50.Rxc7 Kf4 51.Kd6 Kxe4 52.Rxf7 g5 53.Rg7 Kf4
54.Kd5 g4 55.Kd4 Kf3 56.Rf7+ Kg2 57.Ke3 g3 58.Ke2 Kh2 59.Kf3 g2 60.Rh7+ 
Kg1 61.Rg7 Kh1 62.Kf2 1-0

[Event "36th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1980.03.21"]
[Round "13"]
[White "Van der Vliet, Fredrik"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2520"]
[EventDate "1980.03.05"]
[PlyCount "38"]
[ECO "A32"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 a6 5.Nc3 e6 6.e3 Bb4 7.Bd2 Nc6 8.Nb3 d5
9.cxd5 exd5 10.Be2 O-O 11.O-O Re8 12.Nd4 Ne5 13.Qb3 Ba5 14.Rfd1 Bc7 15.Be1
Qd6 16.Qa3 Qxa3 17.bxa3 b5 18.a4 b4 19.Nb1 Bd6 1/2-1/2
