[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Bohm, Hans"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2300"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "25"]
[ECO "C01"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Bd3 Bd6 5.Ne2 Ne7 6.Bf4 O-O 7.Qd2 Bf5 8.Nbc3
c6 9.O-O-O Bxd3 10.Qxd3 Bxf4+ 11.Nxf4 Qd6 12.Qg3 Qf6 13.Rhe1 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Enklaar, Bertus"]
[Black "Schouten, Nico"]
[Result "0-1"]
[WhiteElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "176"]
[ECO "C81"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Qe2 Be7 10.a4 b4 11.c3 O-O 12.Nd4 Qd7 13.Rd1 Nxd4 14.cxd4 f5 15.f3 
Ng5 16.Be3 f4 17.Bf2 h5 18.Nd2 h4 19.h3 c6 20.Bc2 Qe8 21.Kh2 Qh5 22.Rac1 
a5 23.Bd3 Bd7 24.Nb3 Qh6 25.Nc5 Bxc5 26.Rxc5 Ne6 27.Rcc1 g5 28.Qc2 Qg7 29.
Re1 Qe7 30.Bg6 Rfc8 31.Bf5 Rc7 32.Bg4 Qh7 33.Bxe6+ Bxe6 34.Qc5 Qd7 35.Qd6 
Kf7 36.Rc5 Qxd6 37.exd6 Rcc8 38.Re5 Kf6 39.Rc1 Ra7 40.Rc5 Ra6 41.Kg1 Rd8 
42.Kf1 Rxd6 43.Ke2 Bf5 44.Kd2 Re6 45.Rxe6+ Kxe6 46.Rc1 Kf6 47.b3 Bd7 48.
Re1 Ra8 49.Rc1 Ke7 50.Rc2 Kd6 51.Kd1 Bf5 52.Rd2 Re8 53.Bg1 Kc7 54.Bf2 Bc8 
55.Bg1 Ba6 56.Bf2 Kb6 57.Bg1 Kc7 58.Bf2 Kd6 59.Bg1 Bf1 60.Rc2 Re7 61.Rf2 
Bd3 62.Rd2 Bg6 63.Bf2 Re6 64.Bg1 Ke7 65.Bf2 Kf6 66.Bg1 Bf5 67.Bf2 Ke7 68.
Bg1 Kd6 69.Bf2 Re8 70.Bg1 Re6 71.Bf2 c5 72.dxc5+ Kc6 73.Bd4 Re3 74.Bf6 
Rxb3 75.Bd8 Rb1+ 76.Ke2 b3 77.Bf6 Kxc5 78.Kf2 Bh7 79.Ke2 Bg6 80.Kf2 Bf5 
81.Ke2 Bd7 82.Kd3 Bxa4 83.Be7+ Kc6 84.Bxg5 Rc1 85.Bxf4 Bb5+ 86.Ke3 a4 87.
Bg5 a3 88.Bf6 a2 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Hartoch, Robert"]
[Black "Borm, Franciscus"]
[Result "1-0"]
[WhiteElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "115"]
[ECO "B25"]

1.e4 c5 2.Nc3 g6 3.g3 Bg7 4.Bg2 Nc6 5.f4 d6 6.Nf3 Bg4 7.d3 Rb8 8.h3 Bxf3 
9.Qxf3 e6 10.O-O Nge7 11.g4 f5 12.Be3 O-O 13.Nd1 d5 14.Bxc5 dxe4 15.dxe4 
Bd4+ 16.Bxd4 Nxd4 17.Qf2 fxe4 18.c3 Nf3+ 19.Bxf3 Rxf4 20.Qxa7 Rxf3 21.Rxf3
exf3 22.Qf2 Qd3 23.Ne3 Rf8 24.Rd1 Qe4 25.Re1 Nc6 26.Nf1 Qd5 27.Re3 Ne5 28.
b3 Nd3 29.Qd2 f2+ 30.Kh2 Qd6+ 31.Rg3 Rf3 32.Qe2 Ne1 33.Qc4 Rf8 34.Kh1 Nf3 
35.Kg2 Ne5 36.Qe4 Nd7 37.Rd3 Nc5 38.Qxg6+ hxg6 39.Rxd6 Ra8 40.b4 Ne4 41.
Rxe6 Nxc3 42.Rxg6+ Kh7 43.Rb6 Rxa2 44.Rxb7+ Kg6 45.Rc7 Nd5 46.Rc6+ Kf7 47.
Rd6 Nxb4 48.Rd4 Nc6 49.Rf4+ Kg6 50.Rxf2 Ra4 51.Nd2 Ne5 52.Kg3 Ra3+ 53.Nf3 
Kh6 54.Rf1 Rb3 55.Kg2 Ng6 56.Re1 Nf4+ 57.Kg3 Nxh3 58.Rh1 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Van Dop, Arend"]
[Black "Du Chattel, Philippe"]
[Result "0-1"]
[WhiteElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "74"]
[ECO "B06"]

1.e4 c6 2.d4 g6 3.Nc3 d6 4.a4 Bg7 5.Be2 Nh6 6.Be3 f6 7.h4 O-O 8.h5 g5 9.
Qd2 Nf7 10.f4 gxf4 11.Bxf4 e5 12.h6 Bh8 13.Be3 f5 14.dxe5 Bxe5 15.Nf3 Bg3+
16.Kd1 Qf6 17.Kc1 Na6 18.Ra3 Nc5 19.Bd4 Qg6 20.exf5 Bxf5 21.Bg7 Ne6 22.Kb1
Nxg7 23.hxg7 Qxg7 24.Nd4 Bd7 25.Bd3 Ng5 26.Ne4 Bf4 27.Qd1 h6 28.Nxg5 Bxg5 
29.Rb3 Rf4 30.Nf3 Be6 31.Ra3 Bg4 32.Be2 Re8 33.Re1 Rfe4 34.Bc4+ d5 35.Rxe4
Rxe4 36.Bxd5+ cxd5 37.Qxd5+ Re6 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Van der Sterren, Paul"]
[Black "Dieks, Roy"]
[Result "1-0"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "135"]
[ECO "B70"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7 7.O-O Nc5 8.f3 
g6 9.Be3 Bg7 10.Nb3 Nxb3 11.axb3 O-O 12.f4 Bd7 13.e5 Ne8 14.Bf3 Bc6 15.
Bxc6 bxc6 16.exd6 exd6 17.Qd3 Qe7 18.Rfe1 d5 19.Rxa6 Rxa6 20.Qxa6 d4 21.
Bf2 Qd6 22.Ne4 Qd5 23.Qc4 Nc7 24.Nc5 Qf5 25.Nd3 Ne6 26.Qxc6 Nxf4 27.Nxf4 
Qxf4 28.Bg3 Qd2 29.Qc4 h5 30.Rf1 Qe3+ 31.Kh1 Kh7 32.b4 f5 33.Bf4 Qe7 34.b5
g5 35.Bc7 Be5 36.Re1 Qxc7 37.Qxc7+ Bxc7 38.Re7+ Kg6 39.Rxc7 Re8 40.Kg1 Re5
41.b6 Rb5 42.Rc6+ Kf7 43.Kf2 Rxb2 44.Ke2 h4 45.h3 Rb1 46.Kd3 Rb4 47.Rd6 
Kg7 48.c3 dxc3 49.Kxc3 Rb1 50.Kc4 Rb2 51.Kc5 Rc2+ 52.Kb5 Rb2+ 53.Kc6 Rc2+ 
54.Kd7 Rxg2 55.b7 Rb2 56.Kc7 Rxb7+ 57.Kxb7 g4 58.Kc6 gxh3 59.Kc5 f4 60.Kc4
h2 61.Rd1 Kg6 62.Kd3 Kf5 63.Ke2 Kg4 64.Kf2 f3 65.Ra1 Kf4 66.Rh1 Kg4 67.
Rxh2 h3 68.Rh1 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.07"]
[Round "1"]
[White "Vogel, Jaap"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "67"]
[ECO "E60"]

1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nc6 7.b3 e5 8.dxe5 dxe5
9.Bb2 Qe7 10.Nc3 Rd8 11.Qc1 e4 12.Ne1 Nd4 13.Nc2 Nxc2 14.Qxc2 e3 15.Nd5 
Nxd5 16.cxd5 Bf5 17.Qc1 Bxb2 18.Qxb2 Be4 19.Rad1 Bxg2 20.Kxg2 Rxd5 21.Rxd5
Qe4+ 22.f3 Qxd5 23.Qc1 Qe5 24.Rd1 Re8 25.Rd7 Re7 26.Rd8+ Kg7 27.Rd3 g5 28.
Qc4 h6 29.Rd4 Qf6 30.h4 Re6 31.hxg5 hxg5 32.Qd3 Qg6 33.Qc3 Qf6 34.Qd3 
1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Borm, Franciscus"]
[Black "Bohm, Hans"]
[Result "0-1"]
[BlackElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "66"]
[ECO "B03"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 Bf5 6.Nc3 dxe5 7.fxe5 e6 8.Nf3 Nc6
9.Be3 Bg4 10.Qd2 Be7 11.O-O-O f6 12.Qf2 O-O 13.Qg3 Bf5 14.d5 exd5 15.c5 
Nd7 16.Bh6 Bg6 17.Rxd5 Qe8 18.Bc4 Kh8 19.Rxd7 Qxd7 20.e6 Qe8 21.Be3 Na5 
22.Bb5 c6 23.Be2 Qc8 24.b4 Qxe6 25.Nd4 Qf7 26.bxa5 Bxc5 27.Nc2 Bxe3+ 28.
Nxe3 Rfe8 29.Nc4 Rxe2 30.Nxe2 Qxc4+ 31.Nc3 Qb4 32.Rd1 Qa3+ 33.Kd2 Re8 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Du Chattel, Philippe"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[BlackElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "57"]
[ECO "B20"]

1.e4 c5 2.d3 Nc6 3.c3 g6 4.g3 Bg7 5.Bg2 e5 6.Nh3 Nge7 7.Be3 d6 8.f3 b6 9.
Qd2 h6 10.c4 Be6 11.Nc3 Qd7 12.Nf2 Nd4 13.h4 h5 14.b4 cxb4 15.Bxd4 exd4 
16.Ne2 b5 17.cxb5 Qxb5 18.Rb1 Rb8 19.O-O O-O 20.f4 f5 21.Rfe1 Kh8 22.e5 
Qb6 23.Nh3 Bd5 24.Ng5 Bxg2 25.Kxg2 dxe5 26.fxe5 Nd5 27.Nf4 Ne3+ 28.Rxe3 
dxe3 29.Qxe3 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Enklaar, Bertus"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "113"]
[ECO "B40"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O
Be7 9.Re1 a5 10.e5 Nd7 11.Qg4 Bf8 12.Na4 Ba6 13.b3 g6 14.Qe2 Bxd3 15.cxd3 
Qb8 16.Bg5 c5 17.Rac1 h6 18.Bf4 Qb4 19.Be3 Be7 20.Rc2 Kf8 21.Rec1 d4 22.
Bf4 Kg7 23.Qe4 Rab8 24.Bd2 Qb5 25.f4 h5 26.g3 Rhc8 27.Rc4 Nb6 28.Nxb6 Qxb6
29.Ra4 Ra8 30.h3 Rcb8 31.Rcc4 f5 32.exf6+ Kxf6 33.Rc1 Qb7 34.Qe5+ Kf7 35.
Re1 Qd5 36.Qxd5 exd5 37.Re5 Rd8 38.f5 Bf6 39.fxg6+ Kxg6 40.Re6 Rd7 41.Rxa5
Rxa5 42.Bxa5 c4 43.Rc6 c3 44.Bb6 Kf5 45.a4 Be5 46.a5 Rg7 47.a6 Rxg3+ 48.
Kf2 Rxd3 49.a7 Rd2+ 50.Ke1 Ra2 51.Rc8 d3 52.a8=Q Rxa8 53.Rxa8 c2 54.Rc8 
Bf4 55.Ba5 c1=Q+ 56.Rxc1 Bxc1 57.b4 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Ree, Hans"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[BlackElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "54"]
[ECO "A16"]

1.c4 Nf6 2.g3 g6 3.Bg2 d5 4.cxd5 Nxd5 5.Nc3 Nb6 6.d3 Bg7 7.Be3 Nc6 8.Bxc6+
bxc6 9.Rc1 Nd5 10.Qd2 h5 11.Nxd5 Qxd5 12.Nf3 Bg4 13.Rc5 Qxa2 14.b4 Qxd2+ 
15.Nxd2 Kd7 16.f3 Be6 17.Kf2 Rhb8 18.Rb1 Ba2 19.Rbc1 Bd5 20.Ra5 Rxb4 21.
Rxa7 Rxa7 22.Bxa7 h4 23.Bc5 Rb5 24.Be3 Be5 25.f4 hxg3+ 26.hxg3 Bd6 27.Nf3 
f6 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Schouten, Nico"]
[Black "Dieks, Roy"]
[Result "1-0"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "49"]
[ECO "A69"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 c5 6.d5 e6 7.Nf3 exd5 8.cxd5 O-O 
9.Be2 Re8 10.O-O Nxe4 11.Nxe4 Rxe4 12.Bd3 Re8 13.f5 Bxf5 14.Bxf5 gxf5 15.
Qd3 Qf6 16.Bg5 Qg6 17.Qb5 Na6 18.Rae1 Rec8 19.Be7 f4 20.Nh4 Qc2 21.Rxf4 c4
22.Nf5 Nc7 23.Qd7 Nxd5 24.Rg4 Rc7 25.Bd8 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.08"]
[Round "2"]
[White "Timman, Jan"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "73"]
[ECO "E62"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.d4 c6 7.Nc3 Qa5 8.h3 e5 9.
e4 exd4 10.Nxd4 Qc5 11.Nb3 Qxc4 12.Qxd6 a5 13.Bf4 Nbd7 14.Rac1 Qb4 15.Qd1 
a4 16.Bd6 Qb6 17.Nd2 Re8 18.e5 Nh5 19.Nc4 Qa6 20.Ne2 Nxe5 21.Bxe5 Bxe5 22.
Nxe5 Rxe5 23.Qd8+ Kg7 24.Qd4 f6 25.Nc3 Qa7 26.Qxa7 Rxa7 27.f4 Re8 28.g4 
Ng3 29.Rfe1 Rxe1+ 30.Rxe1 h5 31.Kf2 h4 32.Re7+ Kh6 33.Bxc6 a3 34.b4 Ra8 
35.Bd5 g5 36.fxg5+ Kxg5 37.Re8 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Bohm, Hans"]
[Black "Du Chattel, Philippe"]
[Result "1-0"]
[WhiteElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "82"]
[ECO "D00"]

1.d4 g6 2.c3 d5 3.Bf4 Bg7 4.e3 f6 5.Nd2 e5 6.Bg3 Nh6 7.Ngf3 Nf7 8.dxe5 
fxe5 9.e4 c6 10.Bd3 Nd7 11.O-O O-O 12.b4 a5 13.a3 Re8 14.Qc2 Nf8 15.Rfe1 
g5 16.Nb3 h5 17.h4 Bg4 18.Nxg5 Nxg5 19.hxg5 Qxg5 20.Qd2 Qxd2 21.Nxd2 Kf7 
22.f3 Bd7 23.Nb3 axb4 24.axb4 Rad8 25.Ra7 Bc8 26.Bf2 Ne6 27.Bb6 Rd6 28.Nc5
Nxc5 29.Bxc5 Bf8 30.Bxd6 Bxd6 31.Ra8 Rg8 32.Kf2 Be7 33.Rh1 h4 34.Bc2 Ke6 
35.Bb3 Kd6 36.exd5 cxd5 37.Ra5 Be6 38.Bxd5 h3 39.gxh3 Bh4+ 40.Ke3 Rg2 41.
Bxe6 Kxe6 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Dieks, Roy"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2305"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "80"]
[ECO "B09"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Bd3 e5 6.dxe5 dxe5 7.Nf3 exf4 8.Bxf4 
O-O 9.Bg5 h6 10.Bh4 g5 11.Bg3 Nc6 12.O-O Be6 13.Bb5 Qe7 14.Bxc6 bxc6 15.
Qe2 Qb4 16.a3 Qxb2 17.Be5 Qb6+ 18.Bd4 Qa5 19.e5 Nd7 20.Ne4 Rfe8 21.Nf6+ 
Bxf6 22.exf6 c5 23.Be3 Qc3 24.Qf2 Qxf6 25.Bxc5 Nxc5 26.Qxc5 Qe7 27.Qc3 Bd5
28.Rae1 Qd6 29.Ne5 Rf8 30.Rf5 Rae8 31.Ref1 f6 32.Ng4 Re2 33.R5f2 Rxf2 34.
Rxf2 f5 35.Ne3 Be4 36.Qc4+ Kh8 37.g4 Qb6 38.Nxf5 Bxf5 39.gxf5 Rxf5 40.Qc3+
Kh7 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Hartoch, Robert"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "89"]
[ECO "B20"]

1.g3 g6 2.Bg2 Bg7 3.e4 c5 4.f4 Nc6 5.d3 e6 6.Nf3 Nge7 7.O-O O-O 8.c3 d5 9.
Qe2 b5 10.Be3 d4 11.Bf2 Ba6 12.e5 Rc8 13.cxd4 Nxd4 14.Nxd4 cxd4 15.Na3 Qb6
16.Nc2 Rfd8 17.Rac1 b4 18.Qe4 b3 19.axb3 Qxb3 20.Nxd4 Qxd3 21.Qxd3 Bxd3 
22.Rxc8 Rxc8 23.Ra1 a6 24.Bf1 Bxf1 25.Kxf1 Nc6 26.Rxa6 Nxd4 27.Bxd4 Rc1+ 
28.Ke2 Bf8 29.h4 Rc2+ 30.Kf3 h6 31.Rb6 Kg7 32.Rb7 Rc4 33.Be3 h5 34.Ke2 Rb4
35.Rxb4 Bxb4 36.Bd2 Be7 37.Kd3 Kf8 38.Kc4 Ke8 39.Kb5 Kd7 40.b4 Kc7 41.Ka6 
Kc6 42.b5+ Kd5 43.b6 Bd8 44.b7 Bc7 45.Bb4 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Van Dop, Arend"]
[Black "Enklaar, Bertus"]
[Result "0-1"]
[WhiteElo "2340"]
[BlackElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "78"]
[ECO "B84"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.Be3 O-O 8.O-O 
a6 9.f4 Qc7 10.Kh1 b5 11.Bf3 Bb7 12.a3 Nbd7 13.Qe2 Rfe8 14.Bf2 e5 15.fxe5 
dxe5 16.Nf5 Bf8 17.Rfd1 Rac8 18.Bh4 g6 19.Ne3 Be7 20.Bg4 Nxg4 21.Ned5 Qc4 
22.Nxe7+ Rxe7 23.Qxc4 Rxc4 24.Bxe7 Nf2+ 25.Kg1 Nxd1 26.Rxd1 Rd4 27.Rxd4 
exd4 28.Nd5 f5 29.Nf6+ Kf7 30.Nxd7 Kxe7 31.Nc5 Bxe4 32.Nxa6 Bxc2 33.Kf2 
Kd6 34.Ke2 f4 35.Nb4 Be4 36.Kf2 Kc5 37.b3 d3 38.Na2 Kd4 39.a4 Bxg2 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Van der Sterren, Paul"]
[Black "Borm, Franciscus"]
[Result "1/2-1/2"]
[EventDate "1975.04.07"]
[PlyCount "106"]
[ECO "B39"]

1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.c4 Nc6 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Nxd4 9.Qd1 e5 10.Nb5 O-O 11.Qd2 Qh4 12.Bd3 Nxb5 13.cxb5 d5 14.exd5 b6 15.
O-O Bb7 16.d6 Rfd8 17.Be2 Rd7 18.Rac1 Qd8 19.Rfd1 Bf8 20.Bg5 f6 21.Bc4+ 
Kh8 22.Be6 Rxd6 23.Qxd6 Bxd6 24.Rxd6 Qf8 25.Rd7 fxg5 26.Rcc7 Qh6 27.Rxb7 
g4 28.g3 Qh5 29.Rbc7 Qh6 30.Bd5 Re8 31.Rxa7 Rc8 32.Bc6 e4 33.Rxh7+ Qxh7 
34.Rxh7+ Kxh7 35.Kf1 Kg7 36.Ke2 Kf6 37.Ke3 Ke5 38.a4 Rd8 39.Bxe4 g5 40.b3 
Rd1 41.Bd3 Re1+ 42.Be2 Rb1 43.Bxg4 Rxb3+ 44.Ke2 Rb4 45.Bd7 Rxa4 46.Kf3 Rb4
47.h3 Rc4 48.Bc6 Rb4 49.Be8 Ra4 50.Bg6 Rc4 51.Ke3 Rb4 52.Bd3 Ra4 53.f3 Rb4
1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.09"]
[Round "3"]
[White "Vogel, Jaap"]
[Black "Schouten, Nico"]
[Result "1-0"]
[WhiteElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "55"]
[ECO "E67"]

1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 c6 7.Nc3 Qa5 8.e4 Nbd7 
9.h3 b5 10.cxb5 cxb5 11.e5 Ne8 12.b4 Qa6 13.a4 Nc7 14.Bg5 Re8 15.Nd2 dxe5 
16.Nxb5 Nxb5 17.axb5 Qxb5 18.Bxa8 exd4 19.Nf3 Nb6 20.Be4 Bxh3 21.Re1 Bg4 
22.Ra5 Qxb4 23.Bd2 Qb2 24.Qc1 Qb3 25.Ra3 Qc4 26.Rxa7 d3 27.Rb7 Qa6 28.Qc6 
1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Borm, Franciscus"]
[Black "Dieks, Roy"]
[Result "1/2-1/2"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "116"]
[ECO "B77"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 
Nc6 9.Bc4 Qc7 10.Bb3 Ne5 11.h4 Nc4 12.Ndb5 Qc6 13.Nxa7 Qa6 14.Bxc4 Qxc4 
15.Qd3 Qc7 16.Nab5 Qa5 17.Nd4 Bd7 18.a3 Rfc8 19.Rb1 Nh5 20.g4 Nf6 21.h5 
Bc6 22.hxg6 fxg6 23.Kf2 Rf8 24.Kg2 Qe5 25.Nxc6 bxc6 26.Bd4 Qe6 27.Rh3 Rf7 
28.Rbh1 Raf8 29.Ne2 d5 30.Nf4 Qc8 31.e5 Ne4 32.Nxg6 hxg6 33.e6 Rf6 34.Bxf6
Rxf6 35.fxe4 Qxe6 36.exd5 cxd5 37.Rf1 Rxf1 38.Kxf1 Bxb2 39.Re3 Qf6+ 40.Rf3
Qc6 41.a4 Kg7 42.Qb3 Bf6 43.Rf2 d4 44.Rf3 g5 45.Rg3 Qh1+ 46.Rg1 Qh2 47.Rg2
Qf4+ 48.Ke2 Qe4+ 49.Kf1 Qf4+ 50.Ke2 Qe4+ 51.Kf2 Qf4+ 52.Ke1 Qe4+ 53.Kf2 
Qf4+ 54.Ke1 Qe4+ 55.Re2 Qxg4 56.a5 Qg1+ 57.Kd2 g4 58.Qe6 Qg3 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Du Chattel, Philippe"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[EventDate "1975.04.07"]
[PlyCount "51"]
[ECO "B20"]

1.e4 g6 2.g3 Bg7 3.Bg2 c5 4.f4 Nc6 5.Nh3 d6 6.O-O e6 7.d3 Nge7 8.c3 O-O 9.
Na3 Rb8 10.Nc2 b5 11.a3 a5 12.Bd2 b4 13.axb4 axb4 14.f5 exf5 15.exf5 Bxf5 
16.Rxf5 gxf5 17.Qh5 bxc3 18.Bxc3 Nd4 19.Ne3 Ng6 20.Bd5 Bf6 21.Ra7 Nb5 22.
Bxf6 Qxf6 23.Ng5 h6 24.Nxf7 Nxa7 25.Nxh6+ Kg7 26.Nhxf5+ 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Enklaar, Bertus"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "55"]
[ECO "D42"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.cxd5 Nxd5 8.Bd3 
Nc6 9.O-O O-O 10.Bc2 b6 11.Qd3 g6 12.a3 Bf6 13.Bh6 Bg7 14.Bxg7 Kxg7 15.
Rfe1 Bb7 16.Ne4 h6 17.Ng3 Nce7 18.Qd2 Nf5 19.Rad1 Rc8 20.Bb1 Rc7 21.Bxf5 
exf5 22.Ne5 Qh4 23.Rc1 Rfc8 24.Rxc7 Rxc7 25.Ne2 Rc8 26.Nc3 Rd8 27.Nf3 Qf6 
28.Rd1 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Ree, Hans"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[BlackElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "57"]
[ECO "D94"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 g6 5.Nf3 Bg7 6.Bd3 O-O 7.O-O Bg4 8.h3 Bxf3 
9.Qxf3 e6 10.Rd1 Nbd7 11.Qe2 Re8 12.e4 dxe4 13.Nxe4 Nxe4 14.Bxe4 Qh4 15.
Qg4 Qe7 16.Qe2 f5 17.Bc2 c5 18.dxc5 Nxc5 19.Rb1 e5 20.Be3 Ne6 21.Ba4 Red8 
22.Rxd8+ Rxd8 23.Rd1 b6 24.Rxd8+ Qxd8 25.c5 Nxc5 26.Bxc5 bxc5 27.Qc4+ Kh8 
28.Qxc5 e4 29.Qxa7 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Schouten, Nico"]
[Black "Timman, Jan"]
[Result "0-1"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "64"]
[ECO "E45"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6 6.a3 Bxc3+ 7.Nxc3 d5 8.b3 O-O
9.Be2 Nc6 10.a4 dxc4 11.Ba3 Re8 12.b4 Ne7 13.b5 Bb7 14.O-O Ned5 15.Qc2 
Nxc3 16.Qxc3 Ne4 17.Qc2 Qg5 18.f4 Qg6 19.Bxc4 Rac8 20.Rac1 c5 21.bxc6 Rxc6
22.Qe2 Rec8 23.Ba6 Rxc1 24.Rxc1 Rxc1+ 25.Bxc1 Nc3 26.Qd2 Nb1 27.f5 Qxf5 
28.Qd3 Bxa6 29.Qxa6 Qc2 30.Qf1 Nc3 31.Ba3 Ne2+ 32.Kh1 Qd3 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.10"]
[Round "4"]
[White "Vogel, Jaap"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "57"]
[ECO "A08"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d5 6.Nbd2 c5 7.e4 Nc6 8.c3 e5 
9.Re1 Re8 10.a4 h6 11.exd5 Nxd5 12.Nc4 f6 13.d4 e4 14.Nh4 f5 15.dxc5 g5 
16.Nd6 Nde7 17.Qh5 Rf8 18.Ng6 Nxg6 19.Qxg6 Ne5 20.Qh5 Nd3 21.Rd1 Be6 22.
Qe2 Qe7 23.Be3 Ne5 24.Bd4 Rad8 25.Qc2 Rd7 26.a5 a6 27.Rdc1 h5 28.Rd1 h4 
29.b4 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Bohm, Hans"]
[Black "Enklaar, Bertus"]
[Result "1/2-1/2"]
[WhiteElo "2300"]
[BlackElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "80"]
[ECO "A46"]

1.d4 e6 2.Nf3 c5 3.e3 Nf6 4.Be2 b6 5.O-O Bb7 6.b3 Be7 7.dxc5 bxc5 8.Bb2 d6
9.Nfd2 O-O 10.Nc3 d5 11.Bf3 Nbd7 12.Ne2 Qc7 13.g3 Rad8 14.Qe1 Rfe8 15.Bg2 
Bf8 16.c4 Ne5 17.Nf4 Bd6 18.Qe2 Ba6 19.Rac1 Nfd7 20.Rfd1 Nb6 21.Nh5 dxc4 
22.bxc4 Bf8 23.Be4 f5 24.Bxe5 Qxe5 25.Bc6 Re7 26.a4 Qc7 27.Bb5 Bb7 28.a5 
Nc8 29.a6 Ba8 30.Nf4 Nd6 31.h4 Nf7 32.Nf3 Rb8 33.Rd2 Ne5 34.Nxe5 Qxe5 35.
f3 g5 36.hxg5 Rg7 37.Nh5 Rg6 38.Rcd1 Be7 39.Kf2 Rxg5 40.f4 Qe4 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Dieks, Roy"]
[Black "Du Chattel, Philippe"]
[Result "1-0"]
[WhiteElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "212"]
[ECO "A11"]

1.g3 g6 2.Bg2 c6 3.c4 Bg7 4.Nc3 Nh6 5.e4 d6 6.Nge2 f5 7.d4 O-O 8.exf5 Bxf5
9.h3 Bd7 10.O-O Nf5 11.c5 d5 12.f4 Na6 13.a3 b6 14.b4 bxc5 15.bxc5 Qa5 16.
Qd2 Nxc5 17.dxc5 Nxg3 18.Nxg3 Bxc3 19.Qa2 Qxc5+ 20.Kh2 Bxa1 21.Qxa1 Rab8 
22.f5 Rb3 23.Bh6 Rf6 24.Bg5 Rf7 25.fxg6 hxg6 26.Rxf7 Kxf7 27.Qh8 Qc3 28.
Qh7+ Qg7 29.Qh4 Rxa3 30.Qb4 Qe5 31.Qxa3 Qxg5 32.Qxa7 Be6 33.Qc7 Qc1 34.Ne2
Qc4 35.Nf4 Qc5 36.Nd3 Qd6+ 37.Ne5+ Kf6 38.Qxd6 exd6 39.Nxc6 g5 40.Kg3 Bf7 
41.Nb4 d4 42.Nd3 Be6 43.Be4 Bc4 44.Nf2 Be6 45.Bd3 Bd5 46.Kg4 Be6+ 47.Kh5 
Bf5 48.Ng4+ Ke6 49.Bc4+ d5 50.Bb3 Bb1 51.Kxg5 d3 52.Ne3 Ke5 53.Bxd5 d2 54.
Bf3 Kd4 55.Nd1 Bc2 56.h4 Bh7 57.Kf6 Bb1 58.h5 Bh7 59.h6 Bb1 60.Bg4 Bc2 61.
Kg7 Bb1 62.h7 Bxh7 63.Kxh7 Ke5 64.Kg6 Kf4 65.Be2 Ke5 66.Kg5 Ke4 67.Kg4 Ke5
68.Kf3 Kd4 69.Kf4 Kd5 70.Ke3 Ke5 71.Kxd2 Kd4 72.Nc3 Ke5 73.Ke3 Kf5 74.Kd4 
Ke6 75.Nd5 Kf7 76.Ke5 Kg6 77.Kf4 Kh6 78.Kf5 Kg7 79.Kg5 Kf7 80.Bg4 Kg7 81.
Be6 Kh7 82.Kf6 Kh8 83.Bf5 Kg8 84.Nc3 Kh8 85.Ne4 Kg8 86.Ng5 Kh8 87.Nf7+ Kg8
88.Bd3 Kf8 89.Nh6 Ke8 90.Ke6 Kf8 91.Nf7 Kg7 92.Be4 Kf8 93.Kf6 Ke8 94.Bf5 
Kf8 95.Bh7 Ke8 96.Ne5 Kd8 97.Ke6 Kc7 98.Kd5 Kb6 99.Nc6 Kc7 100.Bf5 Kb6 
101.Bg4 Kb5 102.Bd1 Kb6 103.Ba4 Kc7 104.Ne5 Kb6 105.Nc4+ Kc7 106.Bc6 Kd8 
1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Hartoch, Robert"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "90"]
[ECO "A05"]

1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.O-O g6 5.c3 a6 6.a4 Bg7 7.axb5 axb5 8.Rxa8 
Bxa8 9.Na3 Bxf3 10.Bxf3 c6 11.d4 d5 12.Nc2 O-O 13.Bf4 Nbd7 14.Qa1 Qa8 15.
Qxa8 Rxa8 16.Nb4 Rc8 17.Ra1 e6 18.Bd6 Bf8 19.Bxf8 Kxf8 20.e3 Nb6 21.Ra6 
Nfd7 22.Be2 Ke7 23.f3 Kd6 24.e4 f6 25.Kf2 Kc7 26.Ke3 Ra8 27.Rxa8 Nxa8 28.
h4 Nab6 29.b3 Kd6 30.Bd3 Nc8 31.h5 Ne7 32.g4 gxh5 33.gxh5 h6 34.Kf4 e5+ 
35.Ke3 Ke6 36.Bf1 Kd6 37.Bh3 c5 38.Nc2 cxd4+ 39.cxd4 Nb6 40.Bf1 exd4+ 41.
Nxd4 dxe4 42.fxe4 Kc5 43.Bxb5 f5 44.Be8 Nbd5+ 45.exd5 Nxd5+ 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Timman, Jan"]
[Black "Borm, Franciscus"]
[Result "1-0"]
[WhiteElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "47"]
[ECO "A04"]

1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nc6 5.c3 d5 6.d4 cxd4 7.cxd4 Nf6 8.Ne5 
Nxe5 9.dxe5 Ne4 10.f3 Qb6+ 11.e3 Nc5 12.Nc3 e6 13.f4 O-O 14.Rb1 Bd7 15.b4 
Na6 16.b5 Nc5 17.Qd4 f6 18.Ba3 Rac8 19.Rfc1 fxe5 20.fxe5 Rf5 21.Nxd5 exd5 
22.Bxc5 Qd8 23.Qxd5+ Kh8 24.Bd4 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Van Dop, Arend"]
[Black "Schouten, Nico"]
[Result "0-1"]
[WhiteElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "84"]
[ECO "A05"]

1.Nf3 Nf6 2.g3 b5 3.c3 c5 4.Bg2 Bb7 5.a4 b4 6.d3 e6 7.O-O Be7 8.e4 Nc6 9.
Re1 d5 10.e5 Nd7 11.d4 h6 12.h4 Qa5 13.Be3 c4 14.cxb4 Nxb4 15.Bd2 Ba6 16.
Bc3 Rb8 17.Nbd2 Qb6 18.Bf1 Rb7 19.Rb1 Nb8 20.b3 cxb3 21.Qxb3 Bxf1 22.Rxf1 
N8c6 23.Rfc1 Kd7 24.Qd1 Rhb8 25.Kg2 Qa6 26.Ra1 Na5 27.Ne1 g6 28.Qf3 Ke8 
29.Qf4 h5 30.Qe3 Nc4 31.Nxc4 dxc4 32.Bxb4 Rxb4 33.Qc3 Rc8 34.Nf3 Qb7 35.
Qd2 Rb3 36.Rc3 Bb4 37.Rxb3 cxb3 38.Qf4 Rc3 39.Rd1 Qd5 40.Qf6 Be7 41.Qf4 b2
42.Rb1 Rb3 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.11"]
[Round "5"]
[White "Van der Sterren, Paul"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "83"]
[ECO "C11"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 cxd4 8.Nxd4 
Nxd4 9.Bxd4 Nb8 10.Qd2 Nc6 11.Bb5 Qa5 12.b3 Bd7 13.Bxc6 Bxc6 14.O-O Rc8 
15.a3 Bc5 16.Rfd1 O-O 17.Ne2 Qxd2 18.Rxd2 b6 19.a4 Bb7 20.a5 bxa5 21.Bxc5 
Rxc5 22.Nd4 Rb8 23.Rdd1 Bc8 24.Kf2 Bd7 25.Ke3 g6 26.Kd3 Rbc8 27.Ra2 Rc3+ 
28.Kd2 a4 29.bxa4 R3c4 30.Kd3 a5 31.Rb1 Rxa4 32.Rxa4 Bxa4 33.Ra1 Rc4 34.c3
Kf8 35.g4 Ke7 36.h4 Kd7 37.f5 gxf5 38.gxf5 exf5 39.Rf1 Rc8 40.Ra1 Rc4 41.
Rf1 Rc8 42.Ra1 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Du Chattel, Philippe"]
[Black "Timman, Jan"]
[Result "0-1"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "74"]
[ECO "C70"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.O-O b5 7.Bb3 Na5 8.c3 Nxb3 
9.axb3 g6 10.Na3 Bb7 11.Bd2 Bg7 12.c4 Qd7 13.Nh4 O-O 14.Qf3 Qe7 15.g3 Nd7 
16.Qd1 f5 17.f3 Nc5 18.Be3 Ne6 19.Qe2 c6 20.Nc2 d5 21.exd5 cxd5 22.cxb5 
axb5 23.d4 f4 24.Bf2 e4 25.Rxa8 Bxa8 26.fxe4 dxe4 27.Qxb5 Ng5 28.Ra1 Kh8 
29.Qc5 Nh3+ 30.Kg2 Qd7 31.d5 e3 32.Rxa8 Rxa8 33.Qc6 Qxc6 34.dxc6 exf2 35.
b4 Rd8 36.gxf4 Nxf4+ 37.Kxf2 Rd2+ 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Enklaar, Bertus"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "87"]
[ECO "B31"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Re1 O-O 7.d4 cxd4 8.cxd4 
d5 9.e5 Ne4 10.h3 Qa5 11.Bf1 Bd7 12.Re3 Rfc8 13.Nc3 Nxc3 14.Rxc3 Nd8 15.
Bd2 Qb6 16.Qb3 Qxb3 17.Rxb3 Rc7 18.a4 Ne6 19.Ba5 b6 20.Bc3 Rb8 21.a5 b5 
22.a6 Bh6 23.Rb4 Rcc8 24.Ne1 Bf8 25.Nd3 Be8 26.Rb3 Rb6 27.Rba3 Rbb8 28.Ra5
Rb6 29.g3 Nc7 30.Bb4 Ne6 31.Bc5 Nxc5 32.dxc5 Rbb8 33.b4 e6 34.f4 Bc6 35.
Ne1 Rd8 36.Nc2 d4 37.Rd1 d3 38.Bxd3 Bf3 39.Rd2 Be4 40.Ra3 Rd7 41.Kf2 Rbd8 
42.Ke3 Bc6 43.Ra1 g5 44.Rdd1 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Ree, Hans"]
[Black "Dieks, Roy"]
[Result "1-0"]
[WhiteElo "2470"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "67"]
[ECO "E91"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 Bg4 7.Be3 Nfd7 8.Qd2 c5
9.d5 Nb6 10.b3 Re8 11.O-O e6 12.h3 Bxf3 13.Bxf3 exd5 14.cxd5 Na6 15.Rac1 
Qe7 16.Rfe1 Nc7 17.g3 Nd7 18.Bg2 Qf8 19.f4 Rab8 20.Bf2 b5 21.e5 dxe5 22.d6
Ne6 23.Bc6 Rb6 24.Bxd7 Rxd6 25.Qxd6 Qxd6 26.Bxe8 exf4 27.Nxb5 Qb8 28.Bd7 
fxg3 29.Bxc5 a6 30.Bxe6 Qxb5 31.a4 Qd3 32.Rcd1 Qc3 33.Bxf7+ Kxf7 34.Rd7+ 
1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Schouten, Nico"]
[Black "Borm, Franciscus"]
[Result "0-1"]
[EventDate "1975.04.07"]
[PlyCount "66"]
[ECO "A41"]

1.d4 d6 2.g3 e5 3.Bg2 exd4 4.Qxd4 Nf6 5.Bg5 Be7 6.c3 O-O 7.Nf3 Re8 8.O-O 
Nc6 9.Qd3 h6 10.Bf4 Nd7 11.e4 Bf6 12.Nbd2 Nc5 13.Qc2 Qe7 14.Ne1 Bg4 15.f3 
Bd7 16.Rd1 a5 17.Nc4 Ne5 18.Nxe5 dxe5 19.Be3 Bb5 20.Rf2 Bg5 21.Bxg5 hxg5 
22.Bf1 Bxf1 23.Kxf1 Red8 24.Rfd2 Rxd2 25.Qxd2 g4 26.Qe3 b6 27.fxg4 Qe6 28.
Qe2 Qxa2 29.Nf3 a4 30.Qb5 a3 31.Nd2 Rd8 32.bxa3 Nxe4 33.Qe2 Nxc3 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Van Dop, Arend"]
[Black "Hartoch, Robert"]
[Result "0-1"]
[WhiteElo "2340"]
[BlackElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "81"]
[ECO "B10"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 e5 4.d3 d5 5.Nbd2 Ne7 6.O-O O-O 7.e4 c6 8.Re1 d4 
9.a4 c5 10.Nc4 Nbc6 11.c3 Be6 12.cxd4 Bxc4 13.dxc4 cxd4 14.Bd2 a5 15.c5 
Nb8 16.Qb3 Qc7 17.Rec1 Nd7 18.Qb5 Nc6 19.Bh3 Kh8 20.Ne1 f5 21.f3 fxe4 22.
fxe4 Nf6 23.Qe2 Qe7 24.Nd3 Ng8 25.b4 axb4 26.Nxb4 Nxb4 27.Bxb4 Bh6 28.Bd2 
Ra6 29.Bxh6 Nxh6 30.Qb5 Rc6 31.Rab1 Rf7 32.Qa5 Kg7 33.Rb6 Qg5 34.Qe1 Ng4 
35.Bxg4 Qxg4 36.Rxc6 bxc6 37.a5 Qf3 38.Ra1 Rb7 39.Qf2 Qxe4 40.Rf1 Qf5 41.
a6 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.12"]
[Round "6"]
[White "Vogel, Jaap"]
[Black "Bohm, Hans"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "85"]
[ECO "A30"]

1.Nf3 g6 2.d4 Bg7 3.g3 c5 4.Bg2 cxd4 5.Nxd4 Nc6 6.Nxc6 bxc6 7.c4 Qa5+ 8.
Nd2 Nf6 9.O-O O-O 10.Nb3 Qa4 11.Qd3 d5 12.cxd5 cxd5 13.Bg5 Bf5 14.Qd4 Qb5 
15.Qd2 Ne4 16.Bxe4 dxe4 17.Nd4 Bxd4 18.Qxd4 Rfd8 19.Qe3 f6 20.Bh6 g5 21.
Rac1 Bg6 22.Rc7 Re8 23.Rd1 Qxb2 24.f4 Qb6 25.Qxb6 axb6 26.Rdd7 Kf7 27.g4 
Rxa2 28.Kf2 e3+ 29.Kxe3 Ra3+ 30.Kd2 Rh3 31.fxg5 Rxh2 32.Rd4 f5 33.gxf5 
Bxf5 34.Rb7 Ra8 35.Ke3 Ra3+ 36.Kf4 Rf2+ 37.Ke5 Ra5+ 38.Rd5 Rxe2+ 39.Kxf5 
Rxd5+ 40.Kf4 Re6 41.Rb8 Rd4+ 42.Kf5 Rd5+ 43.Kf4 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Bohm, Hans"]
[Black "Van Dop, Arend"]
[Result "1-0"]
[WhiteElo "2300"]
[BlackElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "139"]
[ECO "D90"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 Nb6 7.Rc1 Nc6 8.Bg5 
h6 9.Bh4 g5 10.Bg3 g4 11.Ne5 Nxe5 12.dxe5 Qxd1+ 13.Rxd1 c6 14.f4 gxf3 15.
exf3 Be6 16.Bd3 O-O-O 17.b3 Nd5 18.Nxd5 Bxd5 19.O-O h5 20.f4 h4 21.Bf2 b6 
22.Bc4 e6 23.a4 Be4 24.Rxd8+ Kxd8 25.a5 Kc7 26.Re1 Bd5 27.axb6+ axb6 28.
Ra1 Kb7 29.Kf1 Bf8 30.Bxd5 cxd5 31.Ke2 Bc5 32.Be1 Bg1 33.h3 Bc5 34.Kf3 Be7
35.b4 Rc8 36.b5 Rc2 37.Rb1 Ra2 38.g3 hxg3 39.Bxg3 Ra8 40.h4 Rh8 41.Rh1 f6 
42.exf6 Bxf6 43.Re1 Re8 44.h5 Kc7 45.h6 Kd7 46.Bf2 Rh8 47.Rh1 e5 48.fxe5 
Bxe5 49.Rh5 Ke6 50.Bxb6 Rf8+ 51.Ke3 Ra8 52.h7 Ra3+ 53.Kd2 Ra2+ 54.Kd1 Ra1+
55.Ke2 Ra2+ 56.Kf1 Ra1+ 57.Kg2 Ra2+ 58.Bf2 Bh8 59.b6 Rb2 60.Rh6+ Kf7 61.
Kf3 Rb3+ 62.Kf4 Rb4+ 63.Kf5 Rb3 64.Bc5 Rf3+ 65.Kg4 Rb3 66.Rd6 Kg7 67.Kf5 
Kxh7 68.Rd7+ Kg8 69.b7 Rf3+ 70.Kg4 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Borm, Franciscus"]
[Black "Du Chattel, Philippe"]
[Result "0-1"]
[EventDate "1975.04.07"]
[PlyCount "68"]
[ECO "B06"]

1.e4 g6 2.d4 c6 3.Nc3 d6 4.Be3 Nh6 5.f3 f5 6.Qd2 Nf7 7.a4 Bg7 8.Bc4 e6 9.
Nge2 O-O 10.O-O d5 11.Bb3 g5 12.Kh1 f4 13.Bg1 Nh8 14.Rae1 Ng6 15.Nc1 Nd7 
16.Nd3 Nf6 17.Nc5 Nh5 18.Bf2 b6 19.Nd3 Kh8 20.Ne5 Ba6 21.Rg1 Nxe5 22.dxe5 
d4 23.Qxd4 Ng3+ 24.hxg3 Qe8 25.g4 Rd8 26.Qb4 c5 27.Qa3 h5 28.Rd1 hxg4 29.
fxg4 Qg6 30.Rge1 Bxe5 31.Rxd8 Qh6+ 32.Kg1 Rxd8 33.Ne2 Bxe2 34.Rxe2 f3 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Dieks, Roy"]
[Black "Enklaar, Bertus"]
[Result "1-0"]
[WhiteElo "2305"]
[BlackElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "76"]
[ECO "B85"]

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.Be3 Qc7 10.a4 b6 11.Bf3 Bb7 12.Qe2 Nc6 13.Rad1 Nxd4 14.Rxd4 Rac8 15.Rd2 
Nd7 16.g4 Qc4 17.Qd1 Qb4 18.Qc1 Rxc3 19.bxc3 Qxa4 20.Rd4 Qa5 21.e5 Bxf3 
22.Rxf3 d5 23.c4 f6 24.exf6 Nxf6 25.h3 dxc4 26.Rxc4 Nd5 27.Bf2 Qb5 28.Re4 
Qc6 29.Qe1 Nf6 30.Ree3 Bc5 31.Rd3 Nd5 32.Qe4 Rf6 33.f5 Bxf2+ 34.Rxf2 Qc5 
35.c4 Nc7 36.Rd8+ Kf7 37.Qb7 Ke7 38.Qc8 Rf7 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Hartoch, Robert"]
[Black "Schouten, Nico"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "72"]
[ECO "A07"]

1.g3 d5 2.Nf3 Nf6 3.Bg2 c6 4.O-O g6 5.d3 Bg7 6.Nbd2 O-O 7.e4 Re8 8.Qe2 e5 
9.b4 a5 10.bxa5 Rxa5 11.Bb2 b6 12.Rfe1 Ba6 13.c4 Nbd7 14.Bc3 dxc4 15.Nxc4 
Ra4 16.Qc2 Nc5 17.Nfxe5 Bxc4 18.dxc4 Nh5 19.Nxc6 Qd3 20.Rac1 Qxc2 21.Rxc2 
Rxc4 22.e5 Nd3 23.Re3 Nxe5 24.Kf1 Re6 25.Nxe5 Rxe5 26.Bxe5 Rxc2 27.a4 Bxe5
28.Rxe5 Nf6 29.Rb5 Nd7 30.Rb4 Rc5 31.Ke2 Kf8 32.Be4 Ke7 33.f4 Kd6 34.Bd3 
Kc7 35.Bc4 f5 36.Bd3 Nf6 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Timman, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "82"]
[ECO "E90"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Nf3 O-O 7.h3 e6 8.Bd3 exd5 9.
exd5 Re8+ 10.Be3 Nh5 11.O-O f5 12.Qd2 Nd7 13.Rfe1 Ne5 14.Be2 Nf7 15.Nh2 f4
16.Bxf4 Nxf4 17.Qxf4 Bh6 18.Qf3 Bd2 19.Red1 Ng5 20.Qd3 Bxc3 21.bxc3 Bf5 
22.Qd2 Ne4 23.Qb2 Qb6 24.Qc1 Qa5 25.Rd3 Nxc3 26.Rxc3 Rxe2 27.Nf1 Rf8 28.
Rf3 Qd8 29.Qd1 Re4 30.Ne3 Bd7 31.Rxf8+ Qxf8 32.Qb1 Qf6 33.Qxe4 Qxa1+ 34.
Kh2 Qf6 35.Ng4 Bxg4 36.Qxg4 b6 37.f4 Kg7 38.a4 a6 39.Qd7+ Kh6 40.Kg3 Qc3+ 
41.Kg4 Qd2 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.14"]
[Round "7"]
[White "Van der Sterren, Paul"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[BlackElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "44"]
[ECO "C16"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 b6 5.Qg4 Bf8 6.a4 Nc6 7.Nb1 Nb4 8.Na3 c5 9.
c3 Nc6 10.Nf3 cxd4 11.Bb5 Ne7 12.Bg5 Bd7 13.Bxc6 Bxc6 14.Nxd4 h5 15.Qe2 
Qd7 16.Nab5 Ng6 17.f4 a6 18.f5 exf5 19.Nd6+ Bxd6 20.exd6+ Kf8 21.Be7+ Kg8 
22.O-O f4 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Enklaar, Bertus"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "114"]
[ECO "B05"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.c4 Nb6 7.O-O Be7 8.h3 Bh5 
9.Nc3 O-O 10.Be3 d5 11.c5 Bxf3 12.Bxf3 Nc4 13.Bf4 Nc6 14.b3 N4a5 15.Re1 b6
16.Na4 Nb7 17.Rc1 bxc5 18.dxc5 Bg5 19.Qd2 h6 20.Rc3 Bxf4 21.Qxf4 Qg5 22.
Qxg5 hxg5 23.Bd1 Kh7 24.Rg3 Kh6 25.Rg4 g6 26.b4 a6 27.a3 Nbd8 28.Bc2 Nb8 
29.Nb2 Nd7 30.Nd3 f5 31.exf6 Nxf6 32.Rg3 Ne4 33.Rge3 Nc6 34.Ba4 Nd4 35.f3 
Nc3 36.Bd1 a5 37.Ne5 axb4 38.axb4 Ncb5 39.Be2 Na3 40.Ng4+ Kg7 41.Re5 Nac2 
42.Rb1 Rf4 43.Bd3 Rxg4 44.hxg4 Kf6 45.Bxc2 Kxe5 46.Bd3 c6 47.Rb2 Kf6 48.
Kf2 e5 49.Bf1 Ra7 50.Bd3 Ra3 51.Bf1 Rc3 52.Ba6 e4 53.fxe4 dxe4 54.Rb1 Ke5 
55.Bb7 Kf4 56.Rd1 e3+ 57.Kg1 e2 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Hartoch, Robert"]
[Black "Bohm, Hans"]
[Result "0-1"]
[WhiteElo "2375"]
[BlackElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "114"]
[ECO "A03"]

1.g3 d5 2.Bg2 c6 3.d3 Nf6 4.f4 Qb6 5.c3 Ng4 6.d4 Bf5 7.Nf3 e6 8.Ne5 Nxe5 
9.fxe5 c5 10.e3 Nc6 11.O-O Be7 12.Qb3 Bd3 13.Rf2 O-O 14.Nd2 Rac8 15.Bf1 
Bxf1 16.Qxb6 axb6 17.Kxf1 f6 18.exf6 Bxf6 19.Nf3 e5 20.dxe5 Nxe5 21.Nxe5 
Bxe5 22.Bd2 h5 23.Rxf8+ Rxf8+ 24.Kg2 g6 25.h3 Kg7 26.g4 Ra8 27.a3 Kf6 28.
Rd1 Ke6 29.Be1 b5 30.gxh5 gxh5 31.Kf3 Rf8+ 32.Ke2 Rg8 33.Bf2 Rg2 34.Rg1 
Rh2 35.Kf1 Kf5 36.h4 Bf6 37.Rg8 Bxh4 38.Rf8+ Ke6 39.Bxh4 Rxh4 40.Kg2 Rg4+ 
41.Kf3 Rg1 42.Rb8 Rf1+ 43.Kg3 Rf7 44.b4 c4 45.Rh8 Ke5 46.Re8+ Kf5 47.Kf3 
h4 48.Rh8 Kg5+ 49.Kg2 Kg4 50.Rh6 Re7 51.Kf2 Rg7 52.Kg2 Rf7 53.Rh8 Rf6 54.
Rh7 Ra6 55.Rg7+ Kf5 56.Kf3 Rxa3 57.Rf7+ Ke5 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Ree, Hans"]
[Black "Borm, Franciscus"]
[Result "1-0"]
[WhiteElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "66"]
[ECO "A54"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nc6 5.d5 Ne7 6.e4 Ng6 7.g3 Be7 8.h4 h5 9.
Be2 c5 10.Nd2 Qd7 11.Nf1 Bd8 12.Qc2 Ba5 13.Bd2 Ng8 14.Ne3 N6e7 15.f4 exf4 
16.gxf4 Ng6 17.Nf5 Kf8 18.Nb5 Bxd2+ 19.Qxd2 Nf6 20.Bd3 Ne8 21.O-O-O a6 22.
Nc3 Qd8 23.Ng3 Bd7 24.e5 Ne7 25.Nce4 Bg4 26.Rde1 b6 27.Ng5 f6 28.exf6 Nxf6
29.f5 Qd7 30.Ne6+ Kf7 31.Qg5 Rag8 32.Re3 Rh6 33.Rhe1 Nc8 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Schouten, Nico"]
[Black "Du Chattel, Philippe"]
[Result "1-0"]
[EventDate "1975.04.07"]
[PlyCount "126"]
[ECO "A40"]

1.d4 c6 2.Bf4 d6 3.e4 g6 4.Bc4 Bg7 5.Nf3 e6 6.O-O f6 7.Qd3 Nh6 8.b4 O-O 9.
a4 Nf7 10.Nbd2 d5 11.Bb3 g5 12.Bxb8 Rxb8 13.c4 dxe4 14.Qxe4 f5 15.Qe2 c5 
16.Rad1 cxd4 17.c5 g4 18.Ne1 e5 19.f3 h5 20.Nd3 Qg5 21.f4 exf4 22.Nxf4 Bd7
23.Nc4 Rbe8 24.Qf2 Kh7 25.Ne2 Ne5 26.Nxe5 Bxe5 27.Nxd4 Qg7 28.Bc2 Bxd4 29.
Rxd4 Bc8 30.Rd6 Qg5 31.c6 Re7 32.b5 h4 33.Qf4 Qxf4 34.Rxf4 Kg7 35.cxb7 
Rxb7 36.Rd5 Rbf7 37.Rc5 Kh6 38.h3 Be6 39.a5 Rf6 40.b6 axb6 41.axb6 Rb8 42.
Rb4 gxh3 43.gxh3 Bc8 44.Rxh4+ Kg7 45.Rc7+ Rf7 46.Rxf7+ Kxf7 47.Rh8 Kf6 48.
b7 Rxb7 49.Rxc8 Kg5 50.Rc5 Rf7 51.Kg2 Rf8 52.Kg3 Rf6 53.h4+ Kh5 54.Bxf5 
Kh6 55.Kg4 Ra6 56.Be4 Re6 57.Rh5+ Kg7 58.Kf4 Rh6 59.Rg5+ Kh8 60.h5 Rf6+ 
61.Bf5 Ra6 62.Rg6 Ra4+ 63.Kg5 Ra7 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Van Dop, Arend"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "81"]
[ECO "A04"]

1.Nf3 c5 2.g3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Bg2 Bg7 6.Nb3 d6 7.O-O Be6 8.h3 
Nf6 9.Nc3 O-O 10.e4 a5 11.a4 Bc4 12.Re1 Ne8 13.Nd5 e6 14.Ne3 Ba6 15.Rb1 
Rc8 16.Bd2 b6 17.Nc1 f5 18.exf5 gxf5 19.Nd3 Nf6 20.Nf4 Re8 21.Bc3 d5 22.
Bxf6 Bxf6 23.Nxe6 Rxe6 24.Bxd5 Nd4 25.Bxe6+ Nxe6 26.Nxf5 Qxd1 27.Rbxd1 Ng5
28.Ne7+ Kf7 29.Nxc8 Bxc8 30.Re3 Nxh3+ 31.Kg2 Be7 32.f4 h5 33.Rc3 Bc5 34.
Rxc5 bxc5 35.Rd8 Bf5 36.Rh8 Kg6 37.c3 Be6 38.c4 Bf5 39.Rf8 Bd7 40.Rd8 Bg4 
41.Rd5 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.15"]
[Round "8"]
[White "Vogel, Jaap"]
[Black "Dieks, Roy"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "61"]
[ECO "E65"]

1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 c5 7.Nc3 Nc6 8.dxc5 
dxc5 9.Be3 Qa5 10.Bd2 Nd7 11.Nd5 Qd8 12.Bc3 e6 13.Bxg7 Kxg7 14.Nc3 Nde5 
15.Nxe5 Nxe5 16.Qc2 Qe7 17.Rad1 f6 18.b3 Rb8 19.f4 Nf7 20.e4 Bd7 21.Qe2 a6
22.e5 f5 23.a4 Bc6 24.Nd5 exd5 25.cxd5 Bd7 26.e6 Nd6 27.Qe5+ Kg8 28.exd7 
Qxd7 29.Rfe1 b5 30.axb5 axb5 31.Rc1 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Bohm, Hans"]
[Black "Schouten, Nico"]
[Result "1-0"]
[WhiteElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "91"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Ne7 6.d4 exd4 7.Nxd4 Qd6 8.
Be3 g5 9.Qh5 Bd7 10.Nd2 Bg7 11.c3 c5 12.Nf5 Nxf5 13.exf5 O-O-O 14.Ne4 Qd5 
15.f3 f6 16.Rfd1 Qg8 17.Nxc5 Bxf5 18.f4 Kb8 19.a4 Rxd1+ 20.Rxd1 Qc8 21.Qf7
Qe8 22.Qxe8+ Rxe8 23.Kf2 h6 24.Rd5 Bc8 25.a5 g4 26.b4 f5 27.Bd4 Bf8 28.
Nd7+ Bxd7 29.Rxd7 Bd6 30.g3 Rf8 31.Rh7 c5 32.bxc5 Bc7 33.Rxh6 Bxa5 34.Ke3 
Bc7 35.Kd3 Kc8 36.Kc4 Rf7 37.Kd5 Kd7 38.Be5 a5 39.c6+ bxc6+ 40.Rxc6 Bxe5 
41.fxe5 Rh7 42.e6+ Kd8 43.Kd6 Ra7 44.Rb6 Ra8 45.c4 Ke8 46.c5 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Borm, Franciscus"]
[Black "Enklaar, Bertus"]
[Result "1-0"]
[BlackElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "115"]
[ECO "B67"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Qc7 10.Nf3 h6 11.Bh4 O-O-O 12.Bd3 Kb8 13.Rhe1 Be8 14.Kb1 Rc8 15.
h3 Nd7 16.Be2 Na5 17.f5 Nb6 18.fxe6 Nac4 19.Qc1 fxe6 20.Rd3 Nd7 21.Rf1 b5 
22.Nd4 Nc5 23.Rdf3 Be7 24.Bxe7 Qxe7 25.Bxc4 bxc4 26.Qe3 Nd7 27.R3f2 Bh5 
28.g4 Bg6 29.Nde2 Rc5 30.Qd4 Rhc8 31.Nf4 Bh7 32.Nh5 Ne5 33.Nxg7 Qxg7 34.
Qxd6+ Qc7 35.Qxc7+ R8xc7 36.Rf6 h5 37.Rxe6 hxg4 38.hxg4 a5 39.Nd5 Nxg4 40.
Nxc7 Rxc7 41.Ra6 Rc5 42.Rf8+ Kb7 43.Re6 Rc7 44.Rfe8 Rd7 45.R8e7 Kc7 46.Kc1
Nf2 47.Rxd7+ Kxd7 48.Ra6 Bxe4 49.Kd2 Bc6 50.Rxa5 Ne4+ 51.Ke3 Nd6 52.Kd4 
Be4 53.c3 Bd3 54.b3 Nf5+ 55.Kc5 cxb3 56.axb3 Be4 57.Ra7+ Kd8 58.b4 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Dieks, Roy"]
[Black "Van Dop, Arend"]
[Result "1-0"]
[WhiteElo "2305"]
[BlackElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "67"]
[ECO "B84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O b5 8.f4 Bb7 
9.Bf3 Nbd7 10.Qe2 Be7 11.e5 Bxf3 12.Nxf3 Ng4 13.Ng5 Qb6+ 14.Kh1 h5 15.f5 
dxe5 16.fxe6 fxe6 17.Nce4 Ndf6 18.a4 O-O 19.Bd2 Rac8 20.h3 Nxe4 21.Nxe4 
Nf6 22.Ng5 bxa4 23.Qxe5 Rxc2 24.Bc3 Qc6 25.Rf3 Ne8 26.Rg3 Rf5 27.Qe3 Bf6 
28.Nxe6 Bxc3 29.bxc3 Qc4 30.Nd4 Rf1+ 31.Rxf1 Qxf1+ 32.Kh2 Rc1 33.Qxe8+ Kh7
34.Qg6+ 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Du Chattel, Philippe"]
[Black "Ree, Hans"]
[Result "0-1"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "58"]
[ECO "A00"]

1.g3 e5 2.c3 d5 3.d3 Nf6 4.Bg2 Be7 5.Nh3 O-O 6.O-O c5 7.f4 Nc6 8.Nf2 exf4 
9.gxf4 d4 10.e4 dxe3 11.Bxe3 Nd5 12.Bd2 Be6 13.Qf3 Nf6 14.Ne4 Qb6 15.Be3 
Rad8 16.Qe2 Rfe8 17.f5 Bd5 18.Nbd2 Ne5 19.d4 Neg4 20.Rae1 Nxe3 21.Qxe3 
cxd4 22.cxd4 Nxe4 23.Nxe4 Bh4 24.Re2 Bxe4 25.Bxe4 Rxd4 26.Rf4 Bg5 27.f6 
Bxf4 28.Bxh7+ Kxh7 29.Qh3+ Bh6 0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Timman, Jan"]
[Black "Vogel, Jaap"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "81"]
[ECO "E30"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 Bxc3+ 5.bxc3 d6 6.e3 Nbd7 7.Bd3 Qe7 8.f3 
h6 9.Bh4 e5 10.Ne2 Nf8 11.Qc2 Ne6 12.c5 Ng5 13.cxd6 cxd6 14.O-O Nd5 15.Bf2
Ne6 16.c4 Nb4 17.Qa4+ Nc6 18.Rab1 O-O 19.Qa3 exd4 20.exd4 d5 21.Qc3 dxc4 
22.Bxc4 Qf6 23.Rfd1 Ned8 24.Ng3 b6 25.Nh5 Qg5 26.Rb5 Qg6 27.Bd3 Qd6 28.Bc2
f5 29.d5 Qe5 30.Qd2 Ba6 31.Rbb1 Na5 32.Bg3 Qe8 33.Nf4 Nc4 34.Qf2 Qe3 35.
Ng6 Rf6 36.Bxf5 Qxf2+ 37.Bxf2 Kf7 38.Bd3 Rxg6 39.Rbc1 b5 40.a4 Nd6 41.Rc7+
1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.16"]
[Round "9"]
[White "Van der Sterren, Paul"]
[Black "Hartoch, Robert"]
[Result "0-1"]
[BlackElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "106"]
[ECO "B85"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Be7 7.O-O O-O 8.Be3 
a6 9.f4 Qc7 10.Bf3 Nc6 11.a4 Na5 12.Qd3 e5 13.Nde2 b6 14.Rad1 Bb7 15.Kh1 
Nc4 16.Bc1 exf4 17.Nxf4 Ne5 18.Qd4 Rfe8 19.Be2 Bf8 20.Be3 Ned7 21.Nfd5 
Bxd5 22.exd5 Qc5 23.Bg1 Qxd4 24.Bxd4 Be7 25.Rfe1 Bf8 26.Bf1 Rxe1 27.Rxe1 
Ng4 28.h3 Nge5 29.Ne4 h6 30.Nd2 g6 31.Nc4 Nxc4 32.Bxc4 Bg7 33.Bxg7 Kxg7 
34.Re7 Nc5 35.b4 Kf6 36.Rc7 Nxa4 37.Rd7 Ke5 38.Rxf7 Nc3 39.Rg7 a5 40.bxa5 
bxa5 41.Rxg6 a4 42.Rxh6 a3 43.Bb3 Ne4 44.Kh2 a2 45.Bxa2 Rxa2 46.h4 Rxc2 
47.h5 Kxd5 48.Rg6 Ke5 49.h6 Nf6 50.Kh3 Kf5 51.Rg7 Rc1 52.g4+ Kf4 53.g5 Kf3
0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Bohm, Hans"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "73"]
[ECO "A48"]

1.d4 d5 2.Nf3 Nf6 3.Bg5 Ne4 4.Bf4 g6 5.Nbd2 Bg7 6.e3 c5 7.Bb5+ Bd7 8.Bxd7+
Nxd7 9.c3 Nxd2 10.Qxd2 O-O 11.O-O Re8 12.b4 cxb4 13.cxb4 Nb6 14.b5 Qd7 15.
Qb4 Rec8 16.Rfc1 f6 17.Nd2 e5 18.dxe5 fxe5 19.Bg3 h6 20.h3 Kh7 21.a4 d4 
22.e4 Qe6 23.a5 Nd7 24.Qb3 Qxb3 25.Nxb3 a6 26.b6 h5 27.Rc7 Rxc7 28.bxc7 
Rc8 29.Rc1 Bf8 30.Bh4 Kg7 31.Bd8 Kf7 32.Nd2 Bh6 33.Nc4 Rxc7 34.Nxe5+ Nxe5 
35.Rxc7+ Ke8 36.Bf6 d3 37.Re7+ 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Enklaar, Bertus"]
[Black "Du Chattel, Philippe"]
[Result "1-0"]
[WhiteElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "97"]
[ECO "A42"]

1.e4 g6 2.d4 c6 3.c4 d6 4.Nc3 Bg7 5.Be2 Nh6 6.h4 f6 7.Be3 O-O 8.Qd2 Nf7 9.
O-O-O e5 10.f4 Qe7 11.Bf3 Na6 12.Nge2 Nc7 13.Kb1 f5 14.fxe5 dxe5 15.d5 Rd8
16.Ka1 b6 17.h5 f4 18.hxg6 hxg6 19.Bf2 c5 20.Nc1 Ne8 21.Qe2 Nf6 22.Nb3 g5 
23.Bh5 Nd6 24.g3 Nxh5 25.Rxh5 f3 26.Qd3 Bg4 27.Rh2 Qf6 28.Nd2 a6 29.Rf1 
Rf8 30.Bg1 Rf7 31.Nd1 Qg6 32.Ne3 Bd7 33.Nd1 a5 34.Nc3 Raf8 35.Be3 g4 36.
Nd1 Rc8 37.Nf2 b5 38.Rc1 b4 39.Rch1 Rf6 40.Rh5 Qf7 41.Rxe5 Rh6 42.Rg5 
Rxh1+ 43.Nxh1 Qf6 44.e5 Qh6 45.Nf2 Nf7 46.Rxg4 Qh2 47.Nxf3 Qg2 48.e6 a4 
49.exd7 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Hartoch, Robert"]
[Black "Dieks, Roy"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2305"]
[EventDate "1975.04.07"]
[PlyCount "118"]
[ECO "B20"]

1.e4 c5 2.g3 d6 3.Bg2 Nc6 4.c3 e5 5.Ne2 Bg4 6.h3 Bxe2 7.Qxe2 g6 8.a3 Bg7 
9.b4 Nge7 10.d3 a6 11.O-O O-O 12.Nd2 cxb4 13.axb4 d5 14.Rb1 dxe4 15.dxe4 
Na7 16.Bb2 Nec6 17.Nc4 f5 18.exf5 gxf5 19.Rbd1 Qe7 20.Nb6 Rad8 21.Nd5 Qf7 
22.c4 b5 23.cxb5 Nxb5 24.Qc4 Rc8 25.Qa2 Kh8 26.Qxa6 Ncd4 27.Bxd4 Nxd4 28.
Rc1 Rxc1 29.Rxc1 f4 30.Rc7 Qf5 31.g4 Qb1+ 32.Qf1 Qb3 33.Be4 Rd8 34.Qd3 
Qxd3 35.Bxd3 Nf3+ 36.Kh1 Rxd5 37.Rc8+ Bf8 38.Rxf8+ Kg7 39.Rg8+ Kf6 40.Be2 
Ng5 41.h4 Ne4 42.Kg2 Rd2 43.Kf3 Nc3 44.g5+ Kf5 45.Rf8+ Kg6 46.Rf6+ Kg7 47.
Bc4 h5 48.Rf7+ Kg6 49.Rf6+ Kg7 50.Be6 Rd6 51.Rf7+ Kg6 52.Rf6+ Kg7 53.Bf5 
Rxf6 54.gxf6+ Kxf6 55.Be4 Kf7 56.Bc6 Ke7 57.Be4 Kd6 58.Bg6 Nd5 59.Ke4 Nxb4
1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Schouten, Nico"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[BlackElo "2470"]
[EventDate "1975.04.07"]
[PlyCount "51"]
[ECO "E49"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Ne2 O-O 7.O-O d5 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Qc7 11.Ng3 Rd8 12.Ba2 b6 13.Qe2 e5 14.dxc5 bxc5 15.e4 
h6 16.f4 a5 17.Bc4 Qe7 18.fxe5 Nxe5 19.Nf5 Bxf5 20.exf5 Ra7 21.Bf4 Nxc4 
22.Qxc4 Rd5 23.Rae1 Qd8 24.Be5 Rad7 25.a4 Qb6 26.Qh4 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Van Dop, Arend"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2340"]
[BlackElo "2510"]
[EventDate "1975.04.07"]
[PlyCount "108"]
[ECO "B08"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be2 Nf6 5.Be3 c6 6.h3 O-O 7.Nf3 b5 8.e5 Ne8 9.
O-O Nd7 10.Bf4 Bb7 11.Re1 b4 12.Nb1 c5 13.c3 bxc3 14.bxc3 dxe5 15.dxe5 Nc7
16.Bg3 Nb6 17.Nbd2 Ncd5 18.Qc2 Qc8 19.Ne4 Qc6 20.Bf1 Bh6 21.Bh4 Rfe8 22.
Bg5 Bg7 23.a4 a6 24.Bc1 Nd7 25.Ned2 Nf4 26.Ne4 Ne6 27.Neg5 h6 28.Nxe6 Qxe6
29.Bf4 Red8 30.Qe2 Bc6 31.Qe3 Nb6 32.Qxc5 Nxa4 33.Qe3 Bxf3 34.Qxf3 Nc5 35.
Bg3 a5 36.Ra3 a4 37.Qe3 Qc6 38.f3 e6 39.Bf2 Bf8 40.Ra2 Nb3 41.Qf4 Bc5 42.
Bxc5 Qxc5+ 43.Kh2 Qxc3 44.Re3 Qc1 45.Bb5 a3 46.Qe4 Nd2 47.Re1 Qc3 48.Qe2 
Rd5 49.f4 Rb8 50.Rd1 Rbd8 51.Rda1 Qb4 52.Bc6 Qxf4+ 53.Kh1 Ne4 54.Rxa3 Rd1+
0-1

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.17"]
[Round "10"]
[White "Vogel, Jaap"]
[Black "Borm, Franciscus"]
[Result "1-0"]
[WhiteElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "115"]
[ECO "B39"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Bg7 5.e4 Nc6 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Nxd4 9.Qd1 e5 10.Bd3 O-O 11.Qd2 a6 12.O-O d6 13.Rac1 Be6 14.b3 Rb8 15.f3 
Kh8 16.Rfd1 Qd7 17.Ne2 b5 18.Nxd4 exd4 19.Bf2 Rfc8 20.Bf1 bxc4 21.Bxc4 
Bxc4 22.Rxc4 Rxc4 23.bxc4 Qa4 24.Bxd4 Qxc4 25.Bxg7+ Kxg7 26.Qxd6 Qe2 27.
Qd4+ Kg8 28.Qd2 Rb2 29.Qxe2 Rxe2 30.a3 Ra2 31.Rd3 a5 32.h4 h5 33.Kh2 Kg7 
34.Kh3 a4 35.g4 hxg4+ 36.Kxg4 Kf6 37.Kf4 Ke6 38.Rc3 f6 39.Rc6+ Kf7 40.Rc7+
Kg8 41.Rc8+ Kf7 42.Rc7+ Kg8 43.Rc3 Kg7 44.h5 gxh5 45.Kf5 h4 46.f4 Rb2 47.
Rc7+ Kg8 48.Kxf6 Rb6+ 49.Kg5 h3 50.Rc2 Rb3 51.e5 Rxa3 52.e6 Re3 53.Kf6 a3 
54.f5 Kh7 55.e7 Kh6 56.Kf7 Kg5 57.f6 Kf5 58.Rf2+ 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Borm, Franciscus"]
[Black "Van Dop, Arend"]
[Result "1/2-1/2"]
[BlackElo "2340"]
[EventDate "1975.04.07"]
[PlyCount "63"]
[ECO "B84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.f4 Qc7 8.O-O Be7
9.Be3 O-O 10.Kh1 b5 11.e5 Ne8 12.Bf3 Bb7 13.Qe2 Nd7 14.Rad1 Rc8 15.a3 Bxf3
16.Nxf3 Nb6 17.Bxb6 Qxb6 18.f5 dxe5 19.Nxe5 Nf6 20.Ne4 Nxe4 21.Qxe4 exf5 
22.Qxf5 Qe6 23.Qxe6 fxe6 24.c3 Rxf1+ 25.Rxf1 Bf6 26.Nf3 a5 27.Re1 Kf7 28.
Re4 Rd8 29.Kg1 Rd1+ 30.Kf2 Rb1 31.Re2 Ke7 32.Ke3 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Dieks, Roy"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2305"]
[BlackElo "2300"]
[EventDate "1975.04.07"]
[PlyCount "138"]
[ECO "B05"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.Ng5 Bf5 7.Bd3 Bxd3 8.Qxd3 
Be7 9.Nf3 Nc6 10.O-O dxe5 11.dxe5 Nb6 12.Qe4 Qd5 13.Qf4 Qc4 14.Qg3 Qxc2 
15.Qxg7 O-O-O 16.Qxf7 Rhf8 17.Qxe6+ Kb8 18.Nc3 Bc5 19.Qg4 Nd4 20.Qe4 Qxe4 
21.Nxe4 Nxf3+ 22.gxf3 Be7 23.f4 Nd5 24.Ng5 Nxf4 25.Bxf4 Rxf4 26.Ne6 Rg8+ 
27.Kh1 Rf3 28.Rg1 Rg6 29.Rxg6 hxg6 30.Kg2 Rf5 31.Re1 Kc8 32.Kg3 c5 33.f4 
Rh5 34.Rd1 b6 35.Rd2 Rh8 36.Kf3 Rh4 37.b3 a6 38.Kg3 Rh8 39.h3 Rh7 40.Kg2 
Rh8 41.a4 a5 42.Rd3 Rh5 43.Kf2 Rh7 44.Ke2 Rh8 45.Kd1 Rh7 46.Kc2 Rh8 47.Kc3
Rh4 48.Rg3 Kd7 49.Rxg6 Rxh3+ 50.Kc4 Re3 51.Ng5 Bxg5 52.e6+ Kd6 53.fxg5 
Re4+ 54.Kc3 Re3+ 55.Kc2 Rg3 56.Rg8 Kxe6 57.g6 Rg2+ 58.Kc3 Rg3+ 59.Kb2 Rg2+
60.Ka3 Kf5 61.g7 Kf6 62.Rb8 Rxg7 63.Rxb6+ Ke5 64.Ra6 Kd4 65.Rxa5 c4 66.
bxc4 Kxc4 67.Rh5 Rg3+ 68.Kb2 Kb4 69.a5 Rg2+ 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Du Chattel, Philippe"]
[Black "Vogel, Jaap"]
[Result "1-0"]
[BlackElo "2335"]
[EventDate "1975.04.07"]
[PlyCount "71"]
[ECO "C00"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.c3 Nc6 5.g3 dxe4 6.dxe4 e5 7.Ngf3 Bc5 8.b4 Bb6
9.Bc4 O-O 10.h3 Be6 11.Bxe6 fxe6 12.Qe2 a6 13.O-O Qe8 14.g4 Rd8 15.a4 h5 
16.g5 Qg6 17.Kh2 Ng4+ 18.Kg3 Nxf2 19.Rxf2 Bxf2+ 20.Kxf2 Qxg5 21.Nc4 Qh4+ 
22.Kg2 Rxf3 23.Qxf3 Rf8 24.Qe3 Rf4 25.Qg3 Qxg3+ 26.Kxg3 Rxe4 27.Na3 Ne7 
28.Bg5 Nc8 29.Kf3 Nd6 30.Rd1 Kf7 31.Rxd6 Re1 32.Rd7+ Kg6 33.Bd2 Ra1 34.Nc4
Rxa4 35.Nxe5+ Kf5 36.Bf4 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Ree, Hans"]
[Black "Enklaar, Bertus"]
[Result "1-0"]
[WhiteElo "2470"]
[BlackElo "2410"]
[EventDate "1975.04.07"]
[PlyCount "95"]
[ECO "E88"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Qd2 cxd5 9.
cxd5 Nbd7 10.Bd3 Ne8 11.Nge2 f5 12.O-O-O Ndf6 13.h3 f4 14.Bf2 Nh5 15.Kb1 
Bf6 16.Rhf1 Bh4 17.Bg1 Rf7 18.Rc1 Qg5 19.Bf2 Bxf2 20.Rxf2 Ng3 21.Nxg3 Qxg3
22.Qe1 Rc7 23.Qg1 Bd7 24.Rfc2 Qg5 25.Bb5 Qd8 26.Bxd7 Qxd7 27.b3 Rc5 28.Na4
Rxc2 29.Rxc2 Nc7 30.Nc3 Na6 31.Qf1 Rc8 32.Nb5 Rxc2 33.Kxc2 Nb4+ 34.Kb2 a6 
35.Nc3 a5 36.a3 Na6 37.Qb5 Qe7 38.Qxa5 Qg5 39.b4 Qxg2+ 40.Kb3 Qxf3 41.Qd8+
Kf7 42.Qd7+ Kg8 43.Qc8+ Kg7 44.Qxb7+ Kh6 45.Qxa6 Qg2 46.Qxd6 f3 47.Qf8+ 
Kh5 48.d6 1-0

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Timman, Jan"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2375"]
[EventDate "1975.04.07"]
[PlyCount "31"]
[ECO "E90"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.Nf3 O-O 7.h3 e5 8.Bg5 h6 9.
Bd2 Na6 10.Qc1 Kh7 11.g4 Ne8 12.Bd3 Nec7 13.a3 Bd7 14.b4 b6 15.Rb1 Qe7 16.
Qc2 1/2-1/2

[Event "31st NED-ch"]
[Site "Leeuwarden NED"]
[Date "1975.04.19"]
[Round "11"]
[White "Van der Sterren, Paul"]
[Black "Schouten, Nico"]
[Result "0-1"]
[EventDate "1975.04.07"]
[PlyCount "122"]
[ECO "C77"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c3 g6 7.Nbd2 Bg7 8.Nf1 O-O 
9.Ne3 Ne7 10.O-O b5 11.Bc2 Bb7 12.Qe2 c5 13.h3 Nh5 14.g3 Qd7 15.Kh2 f5 16.
Bd2 Nf6 17.Ng2 Qc6 18.Bg5 Rae8 19.Bxf6 Rxf6 20.Ne3 Ref8 21.Nd2 Kh8 22.Bb3 
Qd7 23.Nd5 Nxd5 24.Bxd5 Bc8 25.exf5 Rxf5 26.Bg2 h5 27.h4 Bh6 28.Ne4 R5f7 
29.c4 Qe7 30.Bh3 Bxh3 31.Kxh3 Rf3 32.Kg2 Qe6 33.b3 R3f5 34.a3 Rc8 35.Nc3 
Rcf8 36.Rab1 Qf7 37.Ne4 Rd8 38.Nc3 Rb8 39.Qe4 Rf8 40.Qe2 Rb8 41.b4 Qd7 42.
Qe4 cxb4 43.Rxb4 Bd2 44.Rb3 Bxc3 45.Rxc3 bxc4 46.dxc4 Rb2 47.Rf3 Qb7 48.
Qxb7 Rxb7 49.Rd1 Rb6 50.a4 Rc6 51.a5 Kg7 52.Rb3 e4 53.Rb7+ Rf7 54.Rb6 Rxc4
55.Rdxd6 Rc2 56.Rxg6+ Kf8 57.Rb8+ Ke7 58.Rb7+ Kf8 59.Rxf7+ Kxf7 60.Rxa6 e3
61.Kf3 e2 0-1
