[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Andriessen, Wim"]
[Black "Scholl, Eduard"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "105"]
[ECO "A21"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.d3 f5 6.e3 Nf6 7.Nge2 O-O 8.O-O c6 9.
b4 Be6 10.Rb1 Nbd7 11.b5 Qc7 12.Bd2 Rfe8 13.Qc2 Bf7 14.Rfc1 g5 15.d4 e4 
16.bxc6 bxc6 17.d5 Ne5 18.dxc6 Qxc6 19.Nd4 Qd7 20.Qa4 Nxc4 21.Be1 Qxa4 22.
Nxa4 f4 23.Nf5 Bf8 24.Bc3 Nd5 25.Bd4 Ncb6 26.Bxb6 axb6 27.Nxb6 Rxa2 28.Nd7
Bg6 29.Bf1 Ra5 30.Rd1 Bxf5 31.Rxd5 Rxd5 32.Nf6+ Kh8 33.Nxd5 fxe3 34.fxe3 
Bg7 35.Rb7 h6 36.Bb5 Rf8 37.Kg2 h5 38.Ne7 Bh7 39.Rd7 Be5 40.Nc6 Bf5 41.Rb7
Bc3 42.Ne7 Bh7 43.Be2 h4 44.Bh5 hxg3 45.hxg3 Be1 46.Rb5 Bd2 47.Ng6+ Bxg6 
48.Bxg6 Bxe3 49.Bxe4 Kg7 50.Kh3 Bc5 51.Kg4 Re8 52.Bb1 Kf6 53.Rb3 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Boersma, Paulus"]
[Black "Van Baarle, John"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "66"]
[ECO "A01"]

1.b3 e5 2.Bb2 d6 3.g3 Nf6 4.Bg2 Be7 5.c4 O-O 6.Nf3 c5 7.O-O Nc6 8.Nc3 Re8 
9.d3 Bf8 10.Nd2 Be6 11.Nde4 Nxe4 12.Bxe4 Qd7 13.Bg2 Bh3 14.Nd5 Bxg2 15.
Kxg2 Ne7 16.e4 Nxd5 17.cxd5 a5 18.a4 b5 19.axb5 Qxb5 20.Bc3 Ra7 21.Qc2 Be7
22.Bd2 Rea8 23.Ra4 Bd8 24.Rfa1 Rb8 25.b4 cxb4 26.Qb3 Bb6 27.R1a2 h6 28.f4 
Qc5 29.fxe5 Qf2+ 30.Kh3 Qf1+ 31.Kg4 h5+ 32.Kh4 Bd8+ 33.Bg5 Qf3 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Krabbe, Tim"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "64"]
[ECO "B49"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Be2 b5 8.Nxc6 
Qxc6 9.Bf3 Bb7 10.O-O Rc8 11.Re1 Ne7 12.Qd4 Ng6 13.a4 Nh4 14.axb5 Nxf3+ 
15.gxf3 axb5 16.Ra5 Qc4 17.Rxb5 Qxd4 18.Bxd4 Bc6 19.Rb6 Bd6 20.Rd1 Bb8 21.
Bc5 f5 22.Bd6 Bxd6 23.Rxd6 Ke7 24.Rd3 Rhf8 25.b4 Rb8 26.Rxb8 Rxb8 27.Rd4 
Rb7 28.Kf1 d6 29.Ke1 g5 30.Kd2 h5 31.exf5 e5 32.Rc4 Bxf3 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Langeweg, Christian"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "22"]
[ECO "A32"]

1.d4 c5 2.Nf3 cxd4 3.Nxd4 Nf6 4.c4 e6 5.g3 Qb6 6.Bg2 Bc5 7.e3 Nc6 8.Nb3 
Bb4+ 9.Bd2 d5 10.cxd5 Nxd5 11.O-O Bxd2 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Van der Vliet, Fredrik"]
[Black "Donner, Jan"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "50"]
[ECO "E91"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 O-O 6.Be2 d6 7.Nf3 e6 8.O-O Re8 9.
Nd2 Na6 10.f3 Nc7 11.a4 b6 12.a5 Ba6 13.Re1 exd5 14.exd5 Qd7 15.axb6 axb6 
16.Nb3 Bb7 17.Rxa8 Bxa8 18.Bf4 b5 19.Bg3 b4 20.Nb1 Nh5 21.Qc2 Nxg3 22.hxg3
Qe7 23.N1d2 Qe5 24.Kf2 f5 25.Qb1 Bh6 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.05"]
[Round "1"]
[White "Van der Weide, Piet"]
[Black "Timman, Jan"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "110"]
[ECO "B08"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d6 5.Be3 Nf6 6.Be2 b5 7.a3 O-O 8.O-O Nbd7 
9.Qd2 a6 10.Rad1 Bb7 11.Bg5 c5 12.e5 cxd4 13.Qxd4 dxe5 14.Nxe5 Nxe5 15.
Qxe5 Nd5 16.Qxd5 Bxd5 17.Nxd5 f6 18.Nxf6+ Bxf6 19.Rxd8 Raxd8 20.Bxf6 exf6 
21.Bd3 Rfe8 22.f3 Kf7 23.Kf2 Rd4 24.Rd1 f5 25.b3 Kf6 26.Ra1 f4 27.Rc1 Re3 
28.Rb1 g5 29.Rc1 h5 30.Rb1 g4 31.Rc1 Kg5 32.Rd1 a5 33.Rb1 Kf6 34.Rc1 b4 
35.axb4 axb4 36.Ra1 Rdxd3 37.Ra6+ Ke5 38.cxd3 Rxd3 39.Rh6 Rd2+ 40.Kf1 gxf3
41.Rxh5+ Ke4 42.gxf3+ Kxf3 43.Ke1 Rb2 44.Rh3+ Ke4 45.Kf1 f3 46.Rh8 Rxb3 
47.h4 Rb1+ 48.Kf2 Rb2+ 49.Kg3 Rg2+ 50.Kh3 Rg1 51.Re8+ Kd5 52.Rd8+ Ke6 53.
Rd2 b3 54.h5 Kf5 55.h6 Kg6 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Donner, Jan"]
[Black "Boersma, Paulus"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "124"]
[ECO "A50"]

1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Qc2 d5 5.cxd5 Nxd5 6.Nf3 g6 7.Bd2 Nxc3 8.Bxc3
Bg7 9.e4 O-O 10.Be2 Nd7 11.O-O e6 12.Rad1 Qe7 13.Rfe1 Rfd8 14.Bc4 Nf6 15.
Ne5 Qf8 16.Bb5 c5 17.Bc6 Bxc6 18.Nxc6 Rd7 19.b4 cxd4 20.Bxd4 b5 21.Rd3 Qe8
22.Red1 a6 23.Bxf6 Rxd3 24.Rxd3 Bxf6 25.e5 Bg7 26.g3 Bf8 27.a3 Rc8 28.Rc3 
Kg7 29.Na5 Rxc3 30.Qxc3 Qd7 31.Nc6 h5 32.h4 Qd1+ 33.Kg2 Qd7 34.Qf3 Kg8 35.
Qe4 Kg7 36.Na5 Kg8 37.Nb3 Qd1 38.Nd4 Qd2 39.Nf3 Qc3 40.Qb7 Qd3 41.Qxa6 Qd5
42.Qc8 Kg7 43.Qc3 Be7 44.Qd4 Qb7 45.Qd3 Qc6 46.Kg1 Bd8 47.Qe3 Bb6 48.Qf4 
Bd8 49.Kh2 Qc3 50.Qe3 Qc6 51.Nd4 Qd5 52.Ne2 Bc7 53.Nc3 Qb7 54.Qc5 Bb6 55.
Qxb5 Qa7 56.a4 Bxf2 57.Qe2 Qd4 58.Nb5 Bxg3+ 59.Kxg3 Qxb4 60.Nd6 Qxa4 61.
Qf3 Qa7 62.Qf6+ Kg8 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Hartoch, Robert"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "81"]
[ECO "D93"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Bg4 8.Qb3 Bxf3
9.gxf3 Qd7 10.h4 e6 11.Be5 Re8 12.Bd3 Nh5 13.Bxg7 Nxg7 14.f4 Na6 15.Ne2 
dxc4 16.Bxc4 Nc7 17.Ng3 Nd5 18.h5 Nf6 19.hxg6 hxg6 20.Ke2 Nf5 21.Qd3 Kg7 
22.Ne4 Nxe4 23.Qxe4 Qd6 24.Bd3 Rh8 25.Qe5+ Qxe5 26.fxe5 Rxh1 27.Rxh1 Rd8 
28.b4 Ne7 29.Rc1 Rc8 30.Be4 a6 31.a4 Kf8 32.Kd3 Ke8 33.Rh1 Kd7 34.Rh7 Rf8 
35.Kc4 Nf5 36.Bxf5 gxf5 37.Kc5 Kc7 38.a5 Kd7 39.Kb6 Kc8 40.f3 Kb8 41.e4 
1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Langeweg, Christian"]
[Black "Van der Weide, Piet"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "42"]
[ECO "A86"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.c4 Bg7 5.Nc3 O-O 6.d5 d6 7.Nh3 Na6 8.O-O Nc5 
9.Qc2 a5 10.Rd1 e5 11.dxe6 Nxe6 12.Nb5 Qe7 13.b3 Ng4 14.Bb2 f4 15.Bxg7 
Qxg7 16.Qc3 Qh6 17.Nd4 fxg3 18.hxg3 Ne5 19.Qc1 Qxc1 20.Raxc1 Nxd4 21.Rxd4 
a4 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Ree, Hans"]
[Black "Scholl, Eduard"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "80"]
[ECO "D94"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.d4 Bg7 5.e3 O-O 6.Bd2 c5 7.dxc5 Na6 8.cxd5 
Nxc5 9.Bc4 a6 10.a4 Bf5 11.O-O Rc8 12.Qe2 Nfe4 13.Nh4 Nxd2 14.Qxd2 Ne4 15.
Qd3 Bxc3 16.Nxf5 gxf5 17.bxc3 Qc7 18.Ba2 Qxc3 19.Qxc3 Rxc3 20.Rfd1 Rfc8 
21.g4 fxg4 22.Rd4 Nf6 23.Rb1 Rc1+ 24.Kg2 Rxb1 25.Bxb1 h5 26.Bf5 Rc5 27.e4 
b5 28.axb5 axb5 29.d6 e6 30.Bxe6 fxe6 31.d7 Nxd7 32.Rxd7 h4 33.Rb7 Re5 34.
f3 h3+ 35.Kg3 gxf3 36.Kxf3 Rg5 37.Kf4 Rg2 38.Rxb5 Rxh2 39.Kg3 Re2 40.Kxh3 
Rxe4 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Timman, Jan"]
[Black "Krabbe, Tim"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "123"]
[ECO "A00"]

1.g3 Nf6 2.Bg2 d5 3.d3 c6 4.Nd2 h6 5.e4 Bg4 6.Ngf3 e6 7.h3 Bxf3 8.Qxf3 Be7
9.O-O O-O 10.Qe2 c5 11.f4 Nc6 12.c3 Qc7 13.g4 Rad8 14.h4 dxe4 15.dxe4 Nh7 
16.Nf3 g6 17.e5 Rfe8 18.f5 exf5 19.gxf5 g5 20.e6 Bf6 21.Nh2 Ne5 22.Qh5 Kg7
23.Be3 fxe6 24.hxg5 hxg5 25.fxe6 Rxe6 26.Be4 Rh8 27.Bf5 Re7 28.Qh3 Nc4 29.
Bf2 Nf8 30.Qg2 Nd2 31.Bg3 Nxf1 32.Bxc7 Ne3 33.Qf2 Nxf5 34.Ng4 Rxc7 35.Nxf6
Rf7 36.Qxf5 Rxf6 37.Qxc5 Ne6 38.Qe5 Nf4 39.Qe7+ Kg6 40.Qe4+ Kg7 41.Qxb7+ 
Rf7 42.Qb5 Rh6 43.Rd1 a6 44.Qe5+ Kh7 45.Rd7 Rxd7 46.Qf5+ Rg6 47.Qxd7+ Kh6 
48.c4 g4 49.Qf5 Nh5 50.c5 Rf6 51.Qe5 g3 52.c6 Rxc6 53.Qe3+ Kh7 54.Qe4+ Rg6
55.b4 Ng7 56.a4 Ne6 57.Qb7+ Kh6 58.Qxa6 Nf4 59.Qf1 Rg4 60.a5 g2 61.Qf3 Rh4
62.Qc6+ 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.06"]
[Round "2"]
[White "Van Baarle, John"]
[Black "Andriessen, Wim"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "80"]
[ECO "D58"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.Bd3 Bb7 
9.O-O Ne4 10.Bg3 Nd7 11.cxd5 exd5 12.Rc1 c5 13.dxc5 Ndxc5 14.Bb1 Bf6 15.
Be5 Bxe5 16.Nxe5 Qe7 17.Nf3 Rfd8 18.Re1 Qf6 19.Qd4 Qxd4 20.Nxd4 g6 21.b4 
Nd7 22.Ncb5 a6 23.Rc7 Rab8 24.Na7 Ne5 25.Rec1 Rd6 26.Re7 Nd7 27.Bxe4 Kf8 
28.Rxd7 Rxd7 29.Bd3 Ra8 30.Nac6 Rc7 31.a4 Bxc6 32.Nxc6 Rac8 33.b5 axb5 34.
Bxb5 Re8 35.Rd1 Rec8 36.Rc1 Re8 37.g3 Re4 38.Rd1 Re6 39.Nb4 Rc5 40.Rxd5 
Rc1+ 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Andriessen, Wim"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "81"]
[ECO "E63"]

1.c4 g6 2.g3 Bg7 3.Bg2 Nf6 4.Nc3 O-O 5.Nf3 d6 6.d4 Nc6 7.O-O a6 8.h3 Rb8 
9.Be3 b5 10.Nd2 Bd7 11.Rc1 Na5 12.cxb5 axb5 13.b4 Nc4 14.Nxc4 bxc4 15.b5 
Bxb5 16.Nxb5 Rxb5 17.Rxc4 d5 18.Qa4 Rb2 19.Rc2 Rxc2 20.Qxc2 e6 21.Bg5 Qb8 
22.Rc1 Rc8 23.Bxf6 Bxf6 24.e3 Be7 25.a4 c5 26.dxc5 Rxc5 27.Qb1 Qa7 28.Rxc5
Bxc5 29.Qa2 Qa5 30.Bf1 h5 31.h4 Bb6 32.Qb2 Qa7 33.Bb5 Qe7 34.Bf1 Qd8 35.
Bb5 Ba5 36.Qc2 g5 37.Qe2 gxh4 38.Qxh5 hxg3 39.Qg4+ Kf8 40.Qxg3 Bc7 41.Qg4 
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Boersma, Paulus"]
[Black "Hartoch, Robert"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "130"]
[ECO "A13"]

1.b3 c5 2.Bb2 Nc6 3.c4 Nf6 4.g3 e6 5.Bg2 d5 6.cxd5 exd5 7.Nf3 d4 8.O-O Be7
9.e3 O-O 10.exd4 cxd4 11.Na3 Bg4 12.h3 Bf5 13.Nc4 Rc8 14.Re1 Re8 15.Nce5 
Nxe5 16.Rxe5 Bc2 17.Qe1 Nd7 18.Rb5 a6 19.Rd5 Bf6 20.Qf1 Be4 21.Rd6 Qe7 22.
Ba3 Nc5 23.Rb6 Qc7 24.Rxf6 gxf6 25.Nxd4 Qd7 26.Bb2 Bxg2 27.Kxg2 Qd5+ 28.
Kh2 Re4 29.Nf3 Rce8 30.Qg2 Re2 31.Bd4 R2e6 32.Rc1 Rc6 33.g4 Ne4 34.Rxc6 
bxc6 35.Be3 c5 36.d4 c4 37.bxc4 Qxc4 38.g5 f5 39.a3 Nc3 40.Bf4 Re2 41.Ng1 
Re4 42.Be5 Qd3 43.f3 Re1 44.g6 hxg6 45.Qg5 Rxe5 46.dxe5 Qd4 47.Qe7 Nd5 48.
Qd6 Qf2+ 49.Kh1 Nf4 50.Qd8+ Kh7 51.Qg5 Nh5 52.Qg2 Qe1 53.Qa2 Kg8 54.Qb2 f4
55.Kg2 Ng3 56.e6 Qxe6 57.Qb8+ Kh7 58.Qxf4 Nf5 59.Qd2 Qb3 60.Qc1 a5 61.Qc5 
Ne3+ 62.Kf2 Nd1+ 63.Ke1 a4 64.Kd2 Nb2 65.Qb4 Qd1+ 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Krabbe, Tim"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "130"]
[ECO "B85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O 
d6 9.f4 Bd7 10.Bf3 Be7 11.Qe1 O-O 12.Qg3 Rad8 13.Qf2 Rc8 14.a4 Na5 15.Nxe6
Bxe6 16.Bb6 Qc4 17.Bxa5 d5 18.Bb6 dxe4 19.Be2 Qb4 20.Rab1 Rc5 21.a5 Rc6 
22.Be3 Qxa5 23.f5 Bc4 24.g4 Bxe2 25.Qxe2 Re8 26.Rfd1 Bc5 27.h3 Qb6 28.Kf2 
Qc7 29.Kg2 h6 30.Rd2 b5 31.Nd1 Bd6 32.c3 b4 33.Rc1 bxc3 34.Nxc3 Qb7 35.
Rcd1 Be5 36.Nb1 Rcc8 37.Na3 Bb8 38.Nc4 Qb5 39.Nd6 Bxd6 40.Qxb5 axb5 41.
Rxd6 Rc2+ 42.R1d2 Rec8 43.Kg3 b4 44.Rxc2 Rxc2 45.Rd8+ Kh7 46.Bd4 e3 47.
Bxf6 gxf6 48.Re8 e2 49.b3 Rb2 50.Kf4 Rxb3 51.Rxe2 Rxh3 52.Re7 Kg7 53.Rb7 
b3 54.Rb8 Rc3 55.Ke4 Rg3 56.Kf4 Rh3 57.Ke4 h5 58.gxh5 Rxh5 59.Kf4 Rh3 60.
Kg4 Rc3 61.Kf4 Rc4+ 62.Kf3 Kh6 63.Rxb3 Kg5 64.Rb7 Kxf5 65.Rxf7 Rc3+ 
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Scholl, Eduard"]
[Black "Van Baarle, John"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "113"]
[ECO "B15"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 h5 6.Be3 Nh6 7.Nf3 Bg4 8.Be2 e6 9.
g3 Nf5 10.Bf2 Bf8 11.h3 Bxf3 12.Bxf3 Qb6 13.Na4 Qa6 14.c3 Be7 15.Be2 Qa5 
16.Kf1 Nd7 17.b4 Qc7 18.Kg2 a5 19.a3 b5 20.Nc5 Nxc5 21.bxc5 Kd7 22.Bd3 a4 
23.Qe1 Rag8 24.g4 Nh6 25.Qe2 Bd8 26.Rag1 hxg4 27.hxg4 f5 28.exf6 Qxf4 29.
Bg3 Qxf6 30.Rf1 Qg5 31.Rxh6 Qxh6 32.Rf7+ Be7 33.Qe5 Qh1+ 34.Kf2 Ke8 35.
Qxe6 Rh2+ 36.Bxh2 Qxh2+ 37.Ke1 Qc7 38.Kd1 Rh8 39.Bxg6 Kd8 40.Bh5 Re8 41.
Rf6 Rh8 42.Qxc6 Qxc6 43.Rxc6 Rf8 44.Ke2 Rf4 45.Rb6 Re4+ 46.Kd3 Bg5 47.Rxb5
Re3+ 48.Kc2 Re2+ 49.Kb1 Kc7 50.Bf7 Re1+ 51.Kc2 Re2+ 52.Kb1 Re1+ 53.Ka2 Bd2
54.Rb4 Bxc3 55.Rxa4 Rd1 56.Bxd5 Bxd4 57.Rc4 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Van der Vliet, Fredrik"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "121"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Nd4 Nc6 8.Nc2 
Bxc3 9.dxc3 h6 10.Be3 Qe7 11.Qd2 d6 12.Nb4 Ne5 13.Nd5 Nxd5 14.cxd5 Bf5 15.
Rac1 a5 16.c4 b6 17.b3 f6 18.Rc3 h5 19.f4 exf3 20.exf3 Nd3 21.Bd4 Qe2 22.
Rc2 Qxd2 23.Rxd2 a4 24.Rfd1 axb3 25.axb3 Nc5 26.b4 Nb3 27.Rb2 Nxd4 28.Rxd4
Ra1+ 29.Kf2 Ree1 30.g4 Bg6 31.gxh5 Bxh5 32.c5 bxc5 33.bxc5 dxc5 34.Rc4 
Rec1 35.Rbc2 Rxc2+ 36.Rxc2 Ra5 37.Rb2 c4 38.Rc2 Rc5 39.Ke3 Bg6 40.Rc3 Rxd5
41.Rxc4 Re5+ 42.Kd4 Re2 43.Bh3 Rd2+ 44.Ke3 Rc2 45.Rxc2 Bxc2 46.Be6+ Kh7 
47.f4 Kg6 48.Bg4 Bf5 49.Bf3 c5 50.Be2 Kh6 51.Kf3 g5 52.Bc4 g4+ 53.Kg3 Bd7 
54.Bd3 f5 55.Bc4 Kg6 56.Kf2 Kf6 57.Ke3 Be6 58.Bb5 Kg6 59.Be8+ Bf7 60.Bd7 
Kh5 61.Bxf5 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.07"]
[Round "3"]
[White "Van der Weide, Piet"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "67"]
[ECO "B82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 a6 7.f4 Qc7 8.Qf3 b5 
9.e5 Bb7 10.Qg3 dxe5 11.fxe5 Nfd7 12.O-O-O b4 13.Nce2 Qxe5 14.Nf4 Bc5 15.
Bc4 O-O 16.Rhe1 Qf6 17.Ndxe6 fxe6 18.Nxe6 Bxe3+ 19.Qxe3 Kh8 20.Nxf8 Qxf8 
21.Qe8 Bxg2 22.Qxf8+ Nxf8 23.Rd2 Bc6 24.Re7 Bd7 25.Rf2 Ng6 26.Rff7 Nc6 27.
Rxd7 Nge5 28.Rxg7 Nxc4 29.Rxh7+ Kg8 30.Rdg7+ Kf8 31.Rc7 Kg8 32.Rcg7+ Kf8 
33.Rc7 Kg8 34.Rcg7+ 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Donner, Jan"]
[Black "Scholl, Eduard"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "50"]
[ECO "D91"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxc3 7.bxc3 Qxd5 8.e3
Nc6 9.Qb3 Qa5 10.Rc1 e6 11.Bf4 O-O 12.Nd2 e5 13.Nc4 Qd5 14.Nxe5 Qxb3 15.
axb3 Nxe5 16.Bxe5 Bxe5 17.dxe5 Be6 18.c4 a5 19.Bd3 a4 20.bxa4 Rxa4 21.O-O 
Ra5 22.f4 Ra3 23.Be4 c6 24.Rfe1 Rd8 25.Rc2 b5 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Hartoch, Robert"]
[Black "Andriessen, Wim"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "42"]
[ECO "B49"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Qc7 6.Be3 a6 7.Be2 b5 8.Nxc6 
Qxc6 9.Bf3 Bb7 10.O-O Ne7 11.e5 Qc7 12.Bxb7 Qxb7 13.Bc5 Rc8 14.Bd6 b4 15.
Na4 Ng6 16.Bxf8 Nxf8 17.a3 Ng6 18.Qd4 bxa3 19.Rxa3 O-O 20.Nc5 Qb5 21.b4 
Qe2 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Langeweg, Christian"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "41"]
[ECO "D91"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 O-O 10.b4 c6 11.Qb3 Be6 12.Na4 Nd7 13.Rc1 f5 14.Be2 b5 15.Nc5 
Nxc5 16.Rxc5 Bd7 17.Ne5 Bxe5 18.dxe5 Qe7 19.Qb2 a5 20.a3 f4 21.O-O 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Ree, Hans"]
[Black "Van Baarle, John"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "47"]
[ECO "B07"]

1.e4 g6 2.d4 Bg7 3.c3 d6 4.f4 Nf6 5.Bd3 O-O 6.Nf3 c5 7.dxc5 dxc5 8.O-O Nc6
9.e5 Nd5 10.Be4 Nb6 11.Na3 Qc7 12.Be3 a6 13.Qe2 Rd8 14.Qf2 Nd7 15.Ng5 h6 
16.Nxf7 Kxf7 17.e6+ Kxe6 18.f5+ Kf7 19.fxg6+ Kg8 20.Qf7+ Kh8 21.Bxh6 Rg8 
22.Bxg7+ Rxg7 23.Qe8+ Rg8 24.g7+ 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Timman, Jan"]
[Black "Boersma, Paulus"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "79"]
[ECO "B50"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.g3 Nc6 5.Bg2 g6 6.d4 Bg4 7.dxc5 dxc5 8.Be3 Qa5
9.O-O Nf6 10.Nd5 Bg7 11.Qe1 Qxe1 12.Raxe1 Nxd5 13.exd5 Bxf3 14.Bxf3 Ne5 
15.Bg2 Nd7 16.Re2 Bxb2 17.Rb1 Be5 18.Rxb7 Kd8 19.Bh3 f5 20.Bg5 Bd6 21.Re6 
Kc8 22.Rb1 Nf8 23.Re2 Ra7 24.Rb6 Kd7 25.g4 h6 26.Bd2 g5 27.gxf5 g4 28.Bg2 
Nh7 29.Bxh6 Bxh2+ 30.Kxh2 Nf6 31.Kg1 Rxh6 32.Ree6 Ke8 33.Rxa6 Rxa6 34.Rxa6
Rh5 35.Rc6 Rxf5 36.Rxc5 Rf4 37.c4 Rd4 38.a4 Rd1+ 39.Kh2 Ra1 40.Ra5 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.08"]
[Round "4"]
[White "Van der Weide, Piet"]
[Black "Krabbe, Tim"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "47"]
[ECO "C16"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 b6 5.Qg4 Bf8 6.Nh3 Qd7 7.Be3 Nc6 8.a3 Bb7 
9.Bb5 a6 10.Bd3 f5 11.exf6 Nxf6 12.Qe2 Bd6 13.O-O O-O 14.f4 Ne7 15.b4 Nf5 
16.Bf2 g6 17.g4 Nh6 18.g5 Nh5 19.gxh6 e5 20.fxe5 Qxh3 21.Be3 Be7 22.Bd2 c5
23.bxc5 bxc5 24.Qg2 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Andriessen, Wim"]
[Black "Timman, Jan"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "70"]
[ECO "A37"]

1.Nf3 g6 2.g3 Bg7 3.c4 c5 4.Bg2 Nc6 5.Nc3 e6 6.O-O Nge7 7.d3 O-O 8.Bf4 e5 
9.Bg5 h6 10.Bxe7 Nxe7 11.Nd2 d6 12.Rb1 Nc6 13.a3 a5 14.Nd5 Be6 15.Ne4 f5 
16.Nec3 Rf7 17.e3 g5 18.f4 exf4 19.gxf4 g4 20.Qc2 h5 21.b4 axb4 22.axb4 h4
23.h3 gxh3 24.Bxh3 Bxc3 25.Qxc3 Bxd5 26.cxd5 Nxb4 27.e4 Qf6 28.Qxf6 Rxf6 
29.Bxf5 Nxd5 30.Rxb7 Ne3 31.Rf2 Rxf5 32.Re2 Ra1+ 33.Kf2 Ng4+ 34.Kf3 Rg1 
35.Ra2 Rg3+ 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Boersma, Paulus"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "103"]
[ECO "E60"]

1.b3 e5 2.Bb2 Nc6 3.c4 Nf6 4.e3 d6 5.Nf3 g6 6.d4 Bg7 7.dxe5 Ng4 8.Nc3 
Ngxe5 9.Be2 O-O 10.O-O Nxf3+ 11.Bxf3 Ne5 12.Be2 Bf5 13.e4 Bd7 14.Qd2 f5 
15.exf5 Bxf5 16.Nb5 a6 17.Nd4 Bd7 18.Rac1 Qe7 19.Bc3 Rae8 20.Rfe1 Qh4 21.
Nf3 Qf4 22.Qxf4 Rxf4 23.Nxe5 Bxe5 24.Bf3 Bxc3 25.Rxe8+ Bxe8 26.Rxc3 Rd4 
27.Rc2 Bd7 28.Kf1 b6 29.Ke2 Rf4 30.b4 Rf5 31.Bb7 a5 32.Bd5+ Kf8 33.bxa5 
bxa5 34.Rb2 c6 35.Rb7 Ke8 36.Be4 Rc5 37.Bd3 Kd8 38.Rb8+ Bc8 39.Ke3 Kc7 40.
Rb2 Be6 41.Kd4 Rh5 42.h3 Rh4+ 43.Kc3 d5 44.c5 Bf5 45.Ba6 Bc8 46.Bd3 g5 47.
Re2 Kd8 48.a3 h6 49.f3 Ra4 50.Kb3 Rd4 51.Re3 Rf4 52.Re5 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Krabbe, Tim"]
[Black "Ree, Hans"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "78"]
[ECO "B69"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.Nf3 b5 11.Bxf6 gxf6 12.f5 Qb6 13.g3 b4 14.Ne2 Qf2 15.fxe6 
fxe6 16.Nfd4 Nxd4 17.Qxd4 Qxd4 18.Nxd4 Bf8 19.Bc4 Ke7 20.Rd3 Bh6+ 21.Kb1 
Rhc8 22.b3 Rcb8 23.Rhd1 Rb6 24.a4 bxa3 25.Ka2 Bg7 26.Kxa3 Rc8 27.Ne2 a5 
28.Nf4 a4 29.Ka2 Rc5 30.R3d2 Re5 31.Nd3 axb3+ 32.cxb3 Rxe4 33.Nc5 Re5 34.
Nxd7 Kxd7 35.Kb1 Rc5 36.Rc2 d5 37.Kc1 f5 38.Bd3 Ra5 39.g4 Rxb3 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Scholl, Eduard"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "105"]
[ECO "B06"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 c6 5.Qd2 b5 6.f3 Nd7 7.h4 h5 8.Nh3 Bb7 9.
Ng5 Ngf6 10.Be2 Rc8 11.Nd1 Qc7 12.Rc1 Nb6 13.b3 Nfd7 14.O-O e5 15.f4 exf4 
16.Rxf4 O-O 17.g4 c5 18.d5 Nf6 19.gxh5 gxh5 20.Bxb5 Nbd7 21.Nf2 Ne5 22.Kh1
Ng6 23.Rg1 Nxf4 24.Bxf4 Rb8 25.Bd3 Bc8 26.Ngh3 Ng4 27.Nxg4 Bxg4 28.Nf2 Qd7
29.Nxg4 hxg4 30.Qe2 Kh8 31.Rxg4 c4 32.Bxc4 f5 33.Rg3 fxe4 34.Qh5+ Kg8 35.
Bh6 Rf7 36.Be2 e3 37.Bxe3 Re8 38.Bd3 Re5 39.Qh7+ Kf8 40.Bh6 Bxh6 41.Qxh6+ 
Ke7 42.Re3 Kd8 43.Qh8+ Kc7 44.Qa8 Rxe3 45.Qxa7+ Kd8 46.Qxe3 Rf6 47.h5 Qg4 
48.Qb6+ Ke8 49.Qb8+ Kf7 50.Qa7+ Kf8 51.Qb8+ Kf7 52.Qc7+ Kg8 53.Qd8+ 
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Van Baarle, John"]
[Black "Donner, Jan"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "148"]
[ECO "D73"]

1.d4 Nf6 2.c4 g6 3.g3 c6 4.Bg2 d5 5.cxd5 cxd5 6.Nc3 Bg7 7.Nf3 O-O 8.Ne5 
Nc6 9.Nxc6 bxc6 10.O-O Nd7 11.Be3 Nb6 12.b3 Qd6 13.Qd2 Re8 14.Rac1 a5 15.
Na4 Nxa4 16.bxa4 Ba6 17.Rc5 Bc4 18.Re1 h5 19.Bf3 Reb8 20.Rxa5 Qa3 21.Kg2 
Qxa2 22.Rxa8 Rxa8 23.Qb4 Bf6 24.Qb7 Qxa4 25.h4 e6 26.g4 hxg4 27.Bxg4 Qa6 
28.Qc7 Qc8 29.Qf4 Qd8 30.Rb1 Bb5 31.Bf3 Bxh4 32.Rh1 Bf6 33.Qh2 Bg7 34.Bf4 
Kf8 35.Bd6+ Ke8 36.Qh7 Qxd6 37.Qxg7 Ke7 38.Rh7 Qf4 39.Qxg6 Qf6 40.Qxf6+ 
Kxf6 41.Bh5 Rf8 42.Kg3 Ba4 43.Bf3 Ke7 44.Kf4 Bc2 45.Rh6 Kd6 46.Bh5 f6 47.
Bg4 Bd1 48.Bf3 c5 49.dxc5+ Kxc5 50.Rh1 e5+ 51.Ke3 Bb3 52.Kd2 Ra8 53.Rc1+ 
Kb4 54.Rc6 Ra2+ 55.Ke3 d4+ 56.Kd3 Ba4 57.Rxf6 Bc2+ 58.Kd2 e4 59.Bh5 e3+ 
60.fxe3 Bg6+ 61.Kc1 Bxh5 62.exd4 Bxe2 63.Kb1 Bc4 64.d5 Rh2 65.Rf3 Bxd5 66.
Rg3 Be4+ 67.Kc1 Kc4 68.Kd1 Kd4 69.Rg8 Bf3+ 70.Kc1 Be2 71.Kb1 Kc3 72.Rg3+ 
Bd3+ 73.Ka1 Rh8 74.Rg2 Rh1+ 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.09"]
[Round "5"]
[White "Van der Vliet, Fredrik"]
[Black "Van der Weide, Piet"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "76"]
[ECO "A25"]

1.c4 f5 2.g3 Nf6 3.Bg2 g6 4.Nc3 Bg7 5.e3 O-O 6.Nge2 d6 7.O-O e5 8.d3 Nc6 
9.Rb1 Rb8 10.b4 a6 11.Nd5 Nxd5 12.cxd5 Ne7 13.e4 Bd7 14.Be3 Qe8 15.Qc2 Rc8
16.Rfc1 Qf7 17.Qd2 c6 18.dxc6 Bxc6 19.Rc2 d5 20.exf5 Nxf5 21.Bc5 Rfe8 22.
Nc3 Bh6 23.Qe1 b5 24.Re2 Bg7 25.a3 Rcd8 26.Qc1 Qf6 27.Nd1 Rc8 28.Qd2 Bf8 
29.Bxf8 Rxf8 30.Qa2 Kg7 31.Bxd5 Nd4 32.Re3 Bxd5 33.Qxd5 Rc2 34.Kh1 Nf3 35.
Kg2 Nh4+ 36.Kh1 Nf3 37.Kg2 Nh4+ 38.Kh1 Nf3 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Hartoch, Robert"]
[Black "Van Baarle, John"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "59"]
[ECO "A86"]

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Nc3 Bg7 5.Bg2 O-O 6.Nh3 d6 7.d5 c6 8.Nf4 e5 9.
dxe6 Qe7 10.O-O Na6 11.b3 Ne4 12.Nxe4 Bxa1 13.Qxd6 Qxd6 14.Nxd6 Bf6 15.e4 
fxe4 16.Nxe4 Be7 17.h4 Nc7 18.Bh3 b6 19.Rd1 Ne8 20.Bb2 Ng7 21.Ng5 Nf5 22.
Be5 Re8 23.Bg2 Bxg5 24.hxg5 Bxe6 25.Bxc6 Rad8 26.Rxd8 Rxd8 27.Nxe6 Rd1+ 
28.Kg2 Re1 29.Bb8 Ne7 30.Bd5 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Krabbe, Tim"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "61"]
[ECO "B31"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.b4 cxb4 7.a3 Nge7 8.axb4 
O-O 9.Bb2 d6 10.Bxc6 Nxc6 11.b5 Nd4 12.Nxd4 exd4 13.Ra4 Qb6 14.Na3 d3 15.
Bxg7 Kxg7 16.cxd3 Bd7 17.Qa1+ Kg8 18.Rb1 Qc5 19.Qd4 Qg5 20.Qe3 Qe7 21.Rxa7
d5 22.Nc2 Rxa7 23.Qxa7 dxe4 24.Qxb7 exd3 25.Ne3 Qd6 26.Qd5 Qxd5 27.Nxd5 
Kg7 28.b6 Rb8 29.f3 g5 30.Kf2 f5 31.Ke3 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Langeweg, Christian"]
[Black "Andriessen, Wim"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "82"]
[ECO "B37"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Bg7 5.Nc2 Nc6 6.e4 d6 7.Be2 Nf6 8.Nc3 
Nd7 9.O-O O-O 10.Be3 Nc5 11.f3 f5 12.exf5 Bxf5 13.Qd2 Qe8 14.g4 Bxc2 15.
Qxc2 Ne6 16.Qe4 Ncd4 17.Rad1 Nxe2+ 18.Nxe2 Qf7 19.b3 b6 20.Qd5 Rac8 21.f4 
Nc5 22.Qxf7+ Rxf7 23.Ng3 Bf6 24.g5 Bg7 25.h4 Rcf8 26.Rd5 Ne6 27.Ne2 Bb2 
28.Rb1 Bh8 29.a4 Ng7 30.a5 Nf5 31.Bf2 e6 32.Rb5 e5 33.axb6 axb6 34.Nc3 Ne7
35.Rxb6 Rxf4 36.Nd1 e4 37.Rxd6 Rg4+ 38.Kh1 Nf5 39.Rd7 Be5 40.c5 e3 41.Nxe3
Nxe3 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Ree, Hans"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "56"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 Bxf3 7.Qxf3 Qd7 8.d3
Ne7 9.Be3 Ng6 10.Nd2 Bd6 11.Nc4 O-O 12.Qg4 Qe7 13.g3 Bc5 14.h4 b5 15.Bxc5 
Qxc5 16.Ne3 Ne7 17.a4 Rad8 18.axb5 axb5 19.Ra6 g6 20.h5 Kg7 21.Qh4 f6 22.
Kg2 Rh8 23.Qg4 Kf7 24.Rh1 Qd6 25.Ra7 Rdg8 26.Qf3 Kg7 27.Qg4 Kf7 28.Qf3 Kg7
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Timman, Jan"]
[Black "Scholl, Eduard"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "119"]
[ECO "A36"]

1.c4 c5 2.Nc3 g6 3.g3 Bg7 4.Bg2 Nc6 5.a3 Nf6 6.Rb1 a5 7.Nf3 O-O 8.O-O d5 
9.cxd5 Nxd5 10.Ng5 e6 11.Nge4 b6 12.d3 h6 13.Bd2 Ra7 14.Na4 Ba6 15.Bc3 e5 
16.Qb3 Nce7 17.Bd2 Qc7 18.Rfc1 Rb8 19.Be1 Qd8 20.Nec3 Rd7 21.Qa2 Kh7 22.
Nxd5 Nxd5 23.Bxa5 bxa5 24.Nxc5 Bb7 25.Nxb7 Rbxb7 26.Rc5 Nf6 27.Bxb7 Rxb7 
28.Qc4 Bf8 29.Rc8 Qe7 30.Qc6 Qd7 31.Rc1 Qxc6 32.R1xc6 Kg7 33.Rxf8 Kxf8 34.
Rxf6 Rxb2 35.Ra6 Rxe2 36.Rxa5 f6 37.Rb5 Ra2 38.Rb3 g5 39.g4 Kf7 40.Kg2 Kg6
41.Kf3 h5 42.h3 h4 43.Ke3 Kf7 44.f3 Rh2 45.a4 Rxh3 46.a5 Rh2 47.Ra3 Rc2 
48.a6 Rc8 49.a7 Ra8 50.d4 exd4+ 51.Kxd4 h3 52.Kc5 f5 53.Kb6 Kf6 54.Kb7 
Rxa7+ 55.Kxa7 h2 56.Ra1 Ke5 57.Rh1 fxg4 58.fxg4 Kf4 59.Rxh2 Kxg4 60.Rh8 
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.10"]
[Round "6"]
[White "Van der Weide, Piet"]
[Black "Boersma, Paulus"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "88"]
[ECO "C28"]

1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6 4.d3 Bb4 5.Ne2 d5 6.exd5 Nxd5 7.O-O Be6 8.Ne4 
Be7 9.Bb3 O-O 10.f4 Bg4 11.c3 Nxf4 12.Bxf4 exf4 13.Rxf4 Bh5 14.d4 Bd6 15.
Rf5 Bg6 16.Nxd6 Qxd6 17.Rf2 Na5 18.Nf4 Nxb3 19.axb3 a5 20.Qf3 b6 21.b4 a4 
22.h4 Bf5 23.h5 h6 24.Qd5 Qd7 25.Qxd7 Bxd7 26.Nd5 Ra7 27.Re1 Bg4 28.Re7 
Bxh5 29.Nxb6 Rd8 30.Rf5 Kf8 31.Rfe5 Bg4 32.Nc4 Be6 33.R5xe6 fxe6 34.Rxe6 
Re8 35.Rc6 Re2 36.Kh2 Rxb2 37.Rc5 a3 38.Rf5+ Kg8 39.Rf1 Rc2 40.Na5 Rxc3 
41.g3 Rc2+ 42.Kh3 a2 43.Kg4 Rb2 44.Ra1 Rxb4 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Andriessen, Wim"]
[Black "Van der Weide, Piet"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "100"]
[ECO "A25"]

1.c4 f5 2.g3 Nf6 3.Bg2 g6 4.Nc3 Bg7 5.d3 O-O 6.e3 e5 7.Nge2 Nc6 8.Rb1 a5 
9.O-O d6 10.a3 Qe7 11.b4 axb4 12.axb4 Nd8 13.Nd5 Nxd5 14.cxd5 h5 15.f4 Ra2
16.Rf2 Nf7 17.Qb3 Ra8 18.Bd2 Kh7 19.Rbf1 Nh6 20.h3 Bd7 21.b5 h4 22.gxh4 
Qxh4 23.Qc4 Qd8 24.Rc1 Rc8 25.d4 e4 26.Qb3 b6 27.Rff1 Qe8 28.Rb1 Bf6 29.
Be1 Ra8 30.Qc4 Ra7 31.Bd2 Qa8 32.Bc3 Qe8 33.Bd2 Ng8 34.Nc3 Qa8 35.Qe2 Kg7 
36.Rfc1 Ne7 37.Qc4 Rh8 38.Kf2 Be8 39.Ke1 Bf7 40.Kd1 Qb7 41.Bf1 Rha8 42.Qe2
Nxd5 43.Nxd5 Qxd5 44.Qg2 Qa2 45.Rb4 Ra4 46.Rxa4 Qxa4+ 47.Ke2 Bh4 48.Rxc7 
Qxb5+ 49.Kd1 Qb3+ 50.Rc2 Qb1+ 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Boersma, Paulus"]
[Black "Krabbe, Tim"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "77"]
[ECO "A01"]

1.b3 e5 2.Bb2 Nc6 3.c4 Nf6 4.e3 d5 5.cxd5 Nxd5 6.a3 Bd6 7.Qc2 O-O 8.Nf3 
Qe7 9.Nc3 Nxc3 10.Qxc3 f5 11.Bb5 e4 12.Bxc6 bxc6 13.Ne5 c5 14.b4 cxb4 15.
axb4 Bb7 16.h4 Rfe8 17.Ra5 c5 18.Nc4 cxb4 19.Qd4 Bc7 20.Rxa7 Red8 21.Rxa8 
Bxa8 22.Qa7 Bd5 23.Nb6 Qc5 24.Nc8 Qc2 25.Ne7+ Kf8 26.O-O Ra8 27.Qd4 Kxe7 
28.Rc1 Qxc1+ 29.Bxc1 b3 30.g4 Kd6 31.gxf5 Bd8 32.f3 Bf6 33.Qb4+ Kc7 34.
fxe4 Ra1 35.Qc5+ Bc6 36.Kf2 b2 37.Bxb2 Bxb2 38.e5 Ra8 39.Qd6+ 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Donner, Jan"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "79"]
[ECO "D86"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2
Nc6 9.O-O b6 10.Bg5 Na5 11.Bd3 c5 12.d5 f6 13.Be3 c4 14.Bc2 e6 15.dxe6 
Bxe6 16.Nd4 Bf7 17.Qe2 Qe7 18.h4 Rac8 19.h5 Rfd8 20.hxg6 hxg6 21.f4 Nc6 
22.Rad1 Nxd4 23.Bxd4 f5 24.Rfe1 Bxd4+ 25.cxd4 fxe4 26.Bxe4 Qf6 27.d5 c3 
28.g3 Kg7 29.Qc2 Rc5 30.Re3 Bxd5 31.Bxd5 Rdxd5 32.Rxd5 Rxd5 33.Qxc3 Qxc3 
34.Rxc3 Rd1+ 35.Kg2 Rd2+ 36.Kf3 Rxa2 37.Rc7+ Kf6 38.g4 Ra3+ 39.Ke4 Ra4+ 
40.Kf3 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Scholl, Eduard"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "158"]
[ECO "B82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Be7 9.Kh1 d6 10.f4 O-O 11.Qf3 Bd7 12.Rae1 b5 13.a3 Rab8 14.Nxc6 Bxc6 15.
Qh3 Rbd8 16.Bc1 d5 17.e5 Ne4 18.Ne2 f5 19.Nd4 Bd7 20.g4 Bc5 21.Be3 fxg4 
22.Qxg4 Bxd4 23.Bxd4 Rf5 24.c3 Be8 25.Qg1 Qf7 26.Qe3 Qh5 27.Rf3 Qh4 28.
Ref1 Rh5 29.h3 Bg6 30.Kh2 Bf5 31.Bxe4 Bxe4 32.Rg3 Rf8 33.Rfg1 Rf7 34.Rg4 
Qe7 35.Rg5 Rh6 36.R1g3 Bf5 37.Qe2 Rh4 38.Be3 g6 39.Rh5 Bg4 40.Qxg4 Rxg4 
41.Rxg4 Qc7 42.Rhg5 Qc4 43.Rg2 a5 44.R5g4 Qd3 45.Bd4 Qe4 46.Rf2 h5 47.Rg3 
Kh7 48.Re3 Qf5 49.Rg3 Qb1 50.Rg1 Qe4 51.Rgf1 b4 52.axb4 axb4 53.Kg1 b3 54.
Kh2 Rf8 55.Bc5 Rc8 56.Bd4 Ra8 57.Rg1 Ra2 58.Bc5 Kg7 59.Bd4 Kf7 60.Kg3 Ke8 
61.Kh2 Kd7 62.Rd1 Kc6 63.Kg3 Kb5 64.Kh2 Ra8 65.Rdf1 Rf8 66.h4 Ra8 67.Rg1 
Ra2 68.Rd1 Qf5 69.Rg1 Kc4 70.Be3 Qd3 71.Re1 Qc2 72.Rxc2 bxc2 73.Bc1 Ra1 
74.b4 Rb1 75.Kg2 Kxc3 76.b5 d4 77.b6 Rxb6 78.Kf3 Rb1 79.f5 gxf5 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Van Baarle, John"]
[Black "Timman, Jan"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "135"]
[ECO "E62"]

1.c4 g6 2.g3 Bg7 3.Bg2 Nf6 4.Nf3 O-O 5.O-O d6 6.d4 Nc6 7.d5 Na5 8.Nfd2 c5 
9.Nc3 Bg4 10.h3 Bd7 11.Qc2 e6 12.dxe6 Bxe6 13.b3 d5 14.cxd5 Nxd5 15.Bb2 
Nb4 16.Qc1 Rc8 17.Nce4 f5 18.Bxg7 Kxg7 19.Nxc5 Qf6 20.Nxe6+ Qxe6 21.Qa3 
Nac6 22.Qb2+ Qf6 23.Qxf6+ Kxf6 24.e3 Rfd8 25.Rfd1 Ne5 26.Nf3 Nxf3+ 27.Bxf3
b6 28.a3 Nd3 29.Kf1 Ke7 30.Be2 Rc3 31.b4 Rd7 32.Ra2 Ne5 33.Rxd7+ Nxd7 34.
Bf3 Ne5 35.Bd5 Rd3 36.Bb7 Rc3 37.Ba6 g5 38.Ke2 h5 39.f4 gxf4 40.gxf4 Nc4 
41.Bxc4 Rxc4 42.Kd3 Re4 43.Rc2 Kd7 44.Rg2 Re7 45.Rg5 Ke6 46.Rxh5 Rd7+ 47.
Ke2 Rc7 48.Rh6+ Kd5 49.Kd3 Rc1 50.Rf6 Rd1+ 51.Ke2 Ra1 52.Rxf5+ Kc4 53.b5 
Rxa3 54.h4 a6 55.bxa6 Rxa6 56.Rf6 Ra2+ 57.Kf3 b5 58.Ke4 b4 59.Rc6+ Kb5 60.
Rc8 b3 61.Rb8+ Kc4 62.f5 Rh2 63.Ke5 Rxh4 64.e4 Rh3 65.f6 Rf3 66.Ke6 Kd4 
67.e5 Re3 68.Rd8+ 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.12"]
[Round "7"]
[White "Van der Vliet, Fredrik"]
[Black "Ree, Hans"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "126"]
[ECO "A24"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.e3 Nf6 6.Nge2 O-O 7.O-O Re8 8.d3 c6 
9.Rb1 Be6 10.b4 Qd7 11.Re1 Bh3 12.Bh1 d5 13.cxd5 cxd5 14.e4 d4 15.Na4 Nc6 
16.Bd2 b6 17.b5 Nd8 18.Qb3 Nb7 19.Rbc1 Rac8 20.Bg2 Be6 21.Qb2 Rxc1 22.Rxc1
Rc8 23.Rxc8+ Qxc8 24.f4 Nd7 25.Qb1 f6 26.fxe5 fxe5 27.Kh1 Nd6 28.Ng1 h6 
29.Bh3 Bxh3 30.Nxh3 Nf8 31.Nf2 Qd7 32.Bb4 Nxb5 33.Bxf8 Bxf8 34.Kg2 Kh7 35.
Qb3 Nc7 36.Nb2 b5 37.a4 a6 38.axb5 axb5 39.Nfd1 h5 40.Nf2 Bh6 41.Qc2 Ne6 
42.Nbd1 Be3 43.Qe2 Bxf2 44.Nxf2 Kg7 45.Qa2 Qc6 46.Qa7+ Kf6 47.Qh7 Qc5 48.
h4 b4 49.Kf3 Qc7 50.Qh8+ Ke7 51.Qa8 Qb6 52.Nd1 Qc5 53.Qa4 Kf6 54.Ke2 g5 
55.hxg5+ Kxg5 56.Qb3 Kf6 57.Kd2 Qa5 58.Qc4 b3+ 59.Ke2 Qa2+ 60.Ke1 Qg2 61.
Qxb3 Qxg3+ 62.Kf1 h4 63.Qc2 Nf4 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Krabbe, Tim"]
[Black "Andriessen, Wim"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "50"]
[ECO "B49"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 b5 8.Nxc6 
Qxc6 9.O-O Bb7 10.Bf3 Ne7 11.e5 Qc7 12.Bxb7 Qxb7 13.Bc5 Rc8 14.Bb4 a5 15.
Bd6 b4 16.Na4 Ng6 17.Bxf8 Nxf8 18.Qd4 Ng6 19.Nb6 Nf4 20.Qxf4 Qxb6 21.a3 
O-O 22.axb4 Qxb4 23.Qxb4 axb4 24.Rfc1 Rc5 25.f4 f6 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Langeweg, Christian"]
[Black "Van Baarle, John"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "117"]
[ECO "A80"]

1.d4 f5 2.Bg5 g6 3.Nc3 Bg7 4.e4 fxe4 5.Nxe4 Nf6 6.Nxf6+ exf6 7.Be3 d5 8.
Bd3 Nc6 9.c3 Ne7 10.g4 Be6 11.h3 Qd7 12.Ne2 O-O-O 13.Nf4 f5 14.Nxe6 Qxe6 
15.Qe2 Kb8 16.O-O-O Rde8 17.Rde1 Qd7 18.Qd1 Ka8 19.Kb1 Rhf8 20.Qd2 Rf7 21.
Reg1 Ref8 22.Qd1 a6 23.f3 fxg4 24.fxg4 Nc8 25.Rf1 Re8 26.Rxf7 Qxf7 27.Rf1 
Qe6 28.Bc1 Nd6 29.Bg5 Re7 30.Qf3 Rf7 31.Qe2 Rxf1+ 32.Qxf1 Ne4 33.Bc1 Bf6 
34.Qf4 Kb8 35.c4 Bg5 36.cxd5 Bxf4 37.dxe6 Bxc1 38.Kxc1 Nd6 39.Kd2 Kc8 40.
Ke3 Kd8 41.Kf4 Ke7 42.Ke5 Ne8 43.Be4 Nd6 44.Bd3 a5 45.h4 Ne8 46.g5 Ng7 47.
d5 Nh5 48.Be2 Ng7 49.a4 Ne8 50.h5 c6 51.dxc6 bxc6 52.h6 Nc7 53.Bc4 Ne8 54.
b3 Nc7 55.b4 axb4 56.a5 Ne8 57.a6 Nc7 58.a7 Na8 59.Bd3 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Ree, Hans"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "26"]
[ECO "B48"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Ne5 9.Be2 b5 10.f4 Nc4 11.Bc1 Bb7 12.e5 Ne4 13.Nxe4 Bxe4 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Timman, Jan"]
[Black "Donner, Jan"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "53"]
[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 
O-O 9.O-O Nc6 10.a3 Bd7 11.Re1 Re8 12.Be4 Nxc3 13.bxc3 Rc8 14.Bf4 Bf6 15.
Qb1 g6 16.Qxb7 e5 17.dxe5 Nxe5 18.Rad1 Nxf3+ 19.gxf3 Re7 20.Rd6 Bxc3 21.
Red1 Rc7 22.Qd5 Qe8 23.Bxg6 Be5 24.Bxe5 Rxe5 25.Bxf7+ Kf8 26.Bxe8 Rxd5 27.
Bxd7 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Van der Vliet, Fredrik"]
[Black "Boersma, Paulus"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "43"]
[ECO "B50"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.g3 Nc6 5.Bg2 Bg4 6.h3 Bxf3 7.Bxf3 g6 8.O-O Bg7
9.d3 e6 10.Be3 Nge7 11.Qd2 O-O 12.Ne2 Nd4 13.Bg2 Nxe2+ 14.Qxe2 Bxb2 15.
Rab1 Bg7 16.Rxb7 Rb8 17.Rfb1 Rxb7 18.Rxb7 Nc6 19.Bd2 Qa8 20.Rb1 c4 21.dxc4
Rb8 22.Rxb8+ 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[Round "8"]
[White "Van der Weide, Piet"]
[Black "Scholl, Eduard"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "44"]
[ECO "C29"]

1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Be7 6.d4 O-O 7.Bd3 f5 8.exf6 
Bxf6 9.O-O Nc6 10.Nxe4 dxe4 11.Bxe4 Nxd4 12.Ng5 Bf5 13.c3 Bxg5 14.Bxg5 
Qxg5 15.Qxd4 Bxe4 16.Qxe4 c6 17.Rae1 Qc5+ 18.Kh1 h6 19.h3 Qb5 20.Qe6+ Kh8 
21.Rf7 Rxf7 22.Qxf7 Qxb2 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Andriessen, Wim"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "28"]
[ECO "D79"]

1.c4 g6 2.g3 Bg7 3.Bg2 Nf6 4.Nc3 O-O 5.d4 c6 6.Nf3 d5 7.cxd5 cxd5 8.O-O 
Nc6 9.Ne5 Bd7 10.Bf4 e6 11.Qd2 Nxe5 12.Bxe5 Bc6 13.Rfd1 Qe7 14.Bf3 Rfd8 
1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Boersma, Paulus"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "80"]
[ECO "D02"]

1.d4 Nf6 2.Nf3 c5 3.c3 e6 4.Bf4 d5 5.e3 Qb6 6.Qc1 Nc6 7.Nbd2 Be7 8.Bd3 O-O
9.Qb1 h6 10.h3 Nd7 11.g4 cxd4 12.exd4 e5 13.dxe5 Qc7 14.Bg3 Ndxe5 15.Nd4 
Bf6 16.O-O Bd7 17.N2b3 Rfe8 18.Bh7+ Kh8 19.Bf5 Rad8 20.Qc2 Nxd4 21.Nxd4 
Bxf5 22.Qxf5 Qb6 23.Rae1 g6 24.Qc2 Nc4 25.Nb3 a5 26.a4 Re4 27.Rxe4 dxe4 
28.Bf4 g5 29.Be3 Nxe3 30.fxe3 Qxe3+ 31.Qf2 Qxf2+ 32.Rxf2 Kg7 33.Re2 b5 34.
Rxe4 bxa4 35.Rxa4 Rd1+ 36.Kg2 Rb1 37.Nd4 Rxb2+ 38.Kf3 Bxd4 39.Rxd4 Rb6 40.
Ra4 Ra6 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Donner, Jan"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "77"]
[ECO "E43"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 b6 7.O-O Bb7 8.Bd2 d6 
9.a3 Bxc3 10.Bxc3 Ne4 11.Be1 f5 12.Nd2 Qg5 13.f4 Qg6 14.Nxe4 fxe4 15.Bc2 
Nd7 16.Bc3 Rac8 17.dxc5 Nxc5 18.Rf3 e5 19.Rg3 Qe6 20.Qg4 Qf7 21.Rd1 Rcd8 
22.h4 Bc8 23.Qe2 Qe7 24.fxe5 dxe5 25.Rg5 h6 26.Rxd8 Rxd8 27.Rxe5 Qxh4 28.
Rh5 Qg3 29.Qf2 Qxf2+ 30.Kxf2 Be6 31.b3 Nd3+ 32.Kg3 Nc1 33.Be5 Nd3 34.Bd4 
Kf7 35.a4 Kg6 36.Rb5 Rd7 37.a5 bxa5 38.Rxa5 Bf5 39.Rxa7 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Hartoch, Robert"]
[Black "Timman, Jan"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "90"]
[ECO "D92"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d5 5.Bf4 O-O 6.Rc1 dxc4 7.e3 Be6 8.Ng5 
Bd5 9.e4 h6 10.exd5 hxg5 11.Bxg5 Nxd5 12.Bxc4 Nb6 13.Bb3 Nc6 14.Ne2 a5 15.
O-O a4 16.Bc4 Nxc4 17.Rxc4 Qd5 18.Qc1 e5 19.dxe5 Qxe5 20.Nc3 a3 21.b3 Na5 
22.Bf4 Qf5 23.Rxc7 Nc6 24.Bg3 Qd3 25.Na4 Nd4 26.Nc3 Rfc8 27.Qe3 Qa6 28.Be5
Nf5 29.Rxc8+ Rxc8 30.Qf4 Rxc3 31.Bxc3 Bxc3 32.g4 Nd4 33.Kg2 Qe2 34.Rc1 Qd2
35.Qb8+ Kh7 36.Qc7 Qxc1 37.Qxf7+ Kh6 38.h4 Ne2 39.g5+ Kh5 40.Qf3+ Kxh4 41.
Qxe2 Qxg5+ 42.Kf1 Qc1+ 43.Kg2 Qf4 44.Kh1 Be5 45.f3 Qc1+ 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Scholl, Eduard"]
[Black "Krabbe, Tim"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "83"]
[ECO "C10"]

1.e4 e6 2.d4 d5 3.Nc3 Nc6 4.Nf3 Nf6 5.Bd3 Bb4 6.e5 Ne4 7.Bd2 Nxd2 8.Qxd2 
b6 9.O-O Bb7 10.Qf4 Qd7 11.Ne2 h6 12.c3 Bf8 13.b4 O-O-O 14.a4 g5 15.Qd2 g4
16.Ne1 h5 17.a5 h4 18.Nc1 f6 19.exf6 Bd6 20.Nb3 e5 21.b5 Nxa5 22.Nxa5 bxa5
23.Rxa5 e4 24.Be2 Rdg8 25.Rxa7 Qf5 26.b6 Qxf6 27.Ba6 Bxa6 28.Rxa6 Kd7 29.
Nc2 Bf4 30.Qe2 c6 31.Ra7+ Ke6 32.c4 Bb8 33.cxd5+ cxd5 34.Ra6 Qf4 35.g3 Qf3
36.b7+ Bd6 37.Qb5 Qf8 38.Ne3 Rg5 39.Rc1 hxg3 40.Rxd6+ Qxd6 41.Rc6 gxh2+ 
42.Kh1 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.14"]
[Round "9"]
[White "Van Baarle, John"]
[Black "Van der Weide, Piet"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "106"]
[ECO "A88"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 c6 8.d5 e5 9.
dxe6 Bxe6 10.b3 Na6 11.Bb2 Qe7 12.Qc2 Rad8 13.Ng5 Bc8 14.Rad1 Ng4 15.Nf3 
f4 16.Na4 g5 17.Bxg7 Qxg7 18.Qc3 Qh6 19.Qd4 Nb4 20.h3 fxg3 21.hxg4 Rxf3 
22.fxg3 Rxg3 23.Rf6 Qh3 24.Qf2 d5 25.Rf3 Rxg2+ 26.Qxg2 Qxg2+ 27.Kxg2 Bxg4 
28.Rg3 h5 29.cxd5 Nxd5 30.Nc3 Nf4+ 31.Kh2 Re8 32.Rd2 Re5 33.Rd8+ Kf7 34.e3
Ng6 35.Ra8 a6 36.Rb8 Re7 37.Rg2 Kg7 38.e4 Ne5 39.Rf2 Bf3 40.Rd2 h4 41.Rdd8
Ng4+ 42.Kh3 Nf2+ 43.Kh2 g4 44.Rg8+ Kf6 45.Rgf8+ Ke5 46.Kg1 Nh3+ 47.Kh2 Kd4
48.Nd1 Ng5 49.Rbd8+ Kxe4 50.Nf2+ Ke3 51.Kg1 g3 52.Nd1+ Ke4 53.Nc3+ Ke5 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Boersma, Paulus"]
[Black "Andriessen, Wim"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "55"]
[ECO "A30"]

1.b3 c5 2.Bb2 Nc6 3.c4 e5 4.g3 g6 5.Bg2 Bg7 6.d3 Nge7 7.Nc3 d6 8.Qd2 O-O 
9.e3 Be6 10.Nd5 Qd7 11.h4 Bxd5 12.cxd5 Nb4 13.e4 f5 14.a3 Na6 15.Nf3 c4 
16.bxc4 Nc5 17.Ng5 Bh6 18.Qe2 Qa4 19.O-O f4 20.Rab1 Rae8 21.d4 exd4 22.
Bxd4 Bxg5 23.hxg5 f3 24.Bxf3 Nxd5 25.Bg2 Nb6 26.e5 Nb3 27.Bxb6 axb6 28.Qd1
1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Krabbe, Tim"]
[Black "Van Baarle, John"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "100"]
[ECO "B08"]

1.e4 g6 2.d4 Bg7 3.c3 d6 4.Nf3 Nf6 5.Nbd2 O-O 6.Bc4 c6 7.O-O d5 8.Bd3 dxe4
9.Nxe4 Nxe4 10.Bxe4 Be6 11.Re1 Re8 12.Bf4 Bd5 13.Be5 f6 14.Bg3 e6 15.Nd2 
Na6 16.c4 Bxe4 17.Nxe4 Qd7 18.Qf3 Rf8 19.Rad1 Rae8 20.Qb3 Kh8 21.Bd6 Rg8 
22.Ba3 Rb8 23.Qh3 Rbd8 24.b3 b6 25.Qh4 Qf7 26.Re3 g5 27.Qg4 Nc7 28.Rh3 Qg6
29.Bd6 Rd7 30.Bxc7 Rxc7 31.Qxe6 Re8 32.Qd6 Rce7 33.f3 Re6 34.Qg3 g4 35.d5 
cxd5 36.cxd5 Rxe4 37.fxe4 gxh3 38.d6 Qxg3 39.hxg3 f5 40.exf5 hxg2 41.Kxg2 
Kg8 42.g4 h6 43.a4 Rd8 44.Rd5 Rd7 45.a5 Bf8 46.axb6 axb6 47.g5 hxg5 48.f6 
Kf7 49.Rxg5 Rxd6 50.Kf3 Kxf6 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Langeweg, Christian"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "18"]
[ECO "A47"]

1.d4 Nf6 2.Nf3 g6 3.c3 Bg7 4.Bf4 O-O 5.e3 b6 6.Be2 Bb7 7.O-O d6 8.Nbd2 
Nbd7 9.a4 a6 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Ree, Hans"]
[Black "Timman, Jan"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "53"]
[ECO "B09"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Na6 7.e5 dxe5 8.dxe5 
Nd5 9.Nxd5 Qxd5 10.Qe2 Bf5 11.Bxf5 gxf5 12.Be3 f6 13.exf6 Bxf6 14.O-O Qe4 
15.c3 Nc5 16.Nd2 Qd3 17.Qf2 Na4 18.Rab1 c5 19.Nf3 b6 20.Rfd1 Qe4 21.Re1 
Qc6 22.Qc2 Kh8 23.Bf2 Rg8 24.Re3 e5 25.fxe5 Bxe5 26.Rxe5 Qxf3 27.Bg3 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Van der Vliet, Fredrik"]
[Black "Scholl, Eduard"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "80"]
[ECO "B47"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Qc7 6.g3 a6 7.Bg2 Nf6 8.O-O 
Nxd4 9.Qxd4 Bc5 10.Bf4 d6 11.Qd3 Nd7 12.Na4 e5 13.Bd2 b5 14.Nxc5 Nxc5 15.
Qa3 O-O 16.Rad1 Nb7 17.Qc3 Qxc3 18.Bxc3 Be6 19.a3 Rfc8 20.f4 f6 21.Rf2 Rc6
22.Rfd2 Rac8 23.Kf2 a5 24.f5 Bc4 25.Rc1 Rb6 26.b4 a4 27.Bb2 Kf7 28.Bf3 Ke7
29.g4 Nd8 30.h4 Nf7 31.Rg1 h6 32.Rgd1 Rbc6 33.Ke3 Ba2 34.Ra1 Bc4 35.Rad1 
R6c7 36.Rg1 Kf8 37.Rgd1 d5 38.exd5 Nd6 39.Rg1 Ba2 40.Be2 Rxc2 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.15"]
[Round "10"]
[White "Van der Weide, Piet"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "130"]
[ECO "B09"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Nc6 7.Be3 Ng4 8.Bg1 e5 
9.fxe5 dxe5 10.d5 Nd4 11.h3 Nh6 12.Qd2 f5 13.O-O-O fxe4 14.Bxe4 Nhf5 15.
Qe1 Nxf3 16.Bxf3 Nd4 17.Be4 Bf5 18.g4 Bxe4 19.Qxe4 Qd7 20.Be3 b5 21.Rh2 b4
22.Ne2 Rfe8 23.Bg5 a5 24.h4 a4 25.c4 Qd6 26.Ng3 Rf8 27.Be3 b3 28.a3 Qa6 
29.Bxd4 exd4 30.Qd3 Qd6 31.Kb1 Rae8 32.Re2 Rxe2 33.Nxe2 Qe5 34.Nc1 Qf4 35.
Qe2 Qf3 36.Qxf3 Rxf3 37.Nd3 Bf8 38.c5 Be7 39.g5 Rf5 40.Re1 Kf8 41.Ne5 d3 
42.Kc1 Rf2 43.Nxd3 Rc2+ 44.Kd1 Rc4 45.Rf1+ Kg8 46.Kd2 Rxh4 47.Kc3 Bxg5 48.
d6 cxd6 49.cxd6 Bh6 50.Re1 Bg7+ 51.Ne5 Kf8 52.Kd3 Rh3+ 53.Kc4 Ke8 54.Nxg6+
Kd8 55.Nf4 Rh4 56.Re4 Kd7 57.Kd5 Bf8 58.Rxa4 Bxd6 59.Ra7+ Bc7 60.Ne6 Rh5+ 
61.Kc4 Kxe6 62.Rxc7 Rh3 63.a4 Kd6 64.Rc8 Kd7 65.Rc5 Kd6 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Andriessen, Wim"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "34"]
[ECO "A29"]

1.c4 Nf6 2.g3 e5 3.Nc3 Bb4 4.Nf3 e4 5.Nd4 Nc6 6.Nc2 Bxc3 7.dxc3 h6 8.Bg2 
O-O 9.O-O Re8 10.b3 d6 11.Ne3 Ne5 12.Qc2 Neg4 13.h3 Nxe3 14.Bxe3 Qe7 15.
Rad1 Bf5 16.a4 a5 17.Qc1 Bg6 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Donner, Jan"]
[Black "Krabbe, Tim"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "47"]
[ECO "D53"]

1.d4 Nc6 2.Nf3 e6 3.c4 Nf6 4.Nc3 d5 5.Bg5 Be7 6.e3 Ne4 7.Bxe7 Qxe7 8.Qb3 
dxc4 9.Bxc4 Nd6 10.Bd3 O-O 11.O-O b6 12.e4 Bb7 13.Rad1 Rac8 14.e5 Nf5 15.
Be4 Na5 16.Qc2 Bxe4 17.Nxe4 Rfd8 18.g4 Nh4 19.Nfg5 Ng6 20.f4 h6 21.f5 exf5
22.gxf5 hxg5 23.fxg6 fxg6 24.b4 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Hartoch, Robert"]
[Black "Van der Weide, Piet"]
[Result "1/2-1/2"]
[EventDate "1971.04.05"]
[PlyCount "49"]
[ECO "B85"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 d6 6.Be3 Nf6 7.Be2 Be7 8.O-O 
O-O 9.f4 a6 10.Qe1 Bd7 11.Qg3 Re8 12.Nf3 Nb4 13.Bd3 Nxd3 14.cxd3 b5 15.a3 
Bc6 16.h3 Qd7 17.Qf2 Qb7 18.b4 Nd7 19.Nd2 Bf6 20.d4 Be7 21.g4 Nf6 22.Qg2 
d5 23.e5 Ne4 24.Ncxe4 dxe4 25.d5 1/2-1/2

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Scholl, Eduard"]
[Black "Boersma, Paulus"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "111"]
[ECO "C47"]

1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be2 Nc6 7.Be3 Nf6 8.O-O 
O-O 9.f4 Re8 10.Bf3 Ng4 11.Bxg4 Bxg4 12.Qd2 Bd7 13.Rae1 f5 14.exf5 gxf5 
15.Nf3 h6 16.Bf2 Be6 17.Nd5 Qd7 18.c4 Qf7 19.b3 a5 20.Rd1 Bxd5 21.cxd5 Nb4
22.Rfe1 b6 23.a3 Rxe1+ 24.Bxe1 Na6 25.b4 axb4 26.axb4 Re8 27.Qd3 Nb8 28.
Bc3 Bxc3 29.Qxc3 Re4 30.Rc1 Na6 31.b5 Nc5 32.Ra1 Ra4 33.Rxa4 Nxa4 34.Qc4 
Nc5 35.Nd4 Qf6 36.h3 Kf7 37.Ne6 Ke7 38.Nxc7 Kd7 39.Ne6 Nxe6 40.dxe6+ Qxe6 
41.Qc6+ Ke7 42.Qxb6 Qe1+ 43.Kh2 Qd2 44.Qc7+ Kf6 45.Qc4 Qe3 46.Qb4 Qb6 47.
Qc3+ Kg6 48.Qc4 Kf6 49.Qd5 h5 50.Qd1 Qxb5 51.Qxd6+ Kf7 52.Qh6 Qe2 53.Qg5 
Qc2 54.Qxh5+ Kg7 55.Qg5+ Kf7 56.h4 1-0

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Timman, Jan"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[EventDate "1971.04.05"]
[PlyCount "68"]
[ECO "B80"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 a6 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 d6 10.Nxc6 bxc6 11.e5 dxe5 12.Rxe5 Bb7 13.Bf4 Bd6 14.Rxe6+ fxe6 
15.Bxd6 Qd7 16.Qd4 c5 17.Qxc5 Bxg2 18.Kxg2 Rc8 19.Qe5 Kf7 20.Ba3 Rhd8 21.
Re1 Rc4 22.Re3 Qc6+ 23.Rf3 Kg8 24.h3 h5 25.Be7 Rd7 26.Bxf6 Rf7 27.b3 Rxf6 
28.Nd5 exd5 29.bxc4 dxc4 30.Qxh5 g6 31.Qg4 Qd5 32.c3 a5 33.a4 Kg7 34.h4 
Kh7 0-1

[Event "27th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.17"]
[Round "11"]
[White "Van Baarle, John"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[EventDate "1971.04.05"]
[PlyCount "55"]
[ECO "D71"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5 5.Nc3 dxc4 6.Qa4+ Nfd7 7.Nf3 Nc6 8.Qxc4
Nb6 9.Qb5 a6 10.Qb3 Nxd4 11.Nxd4 Qxd4 12.Be3 Qc4 13.Nd5 O-O 14.Nxe7+ Kh8 
15.Nxc8 Raxc8 16.Bxb7 Rb8 17.Bf3 Qxb3 18.axb3 Nd7 19.Bd5 Ne5 20.Ra3 Rb5 
21.Bg2 Rfb8 22.Ba7 Bf8 23.Rxa6 Rd8 24.O-O Rxb3 25.e3 c5 26.Rb6 Rxb6 27.
Bxb6 Rd2 28.Ba5 1-0
