[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Branicki, Ignacy"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Donner, Jan"]
[Black "Hiong Liong Tan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "67"]
[ECO "E31"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 Bxc3+ 7.bxc3 d6 8.f3 Qe7
9.e4 Nbd7 10.Qd2 Ne5 11.f4 Ng6 12.Bxf6 Qxf6 13.g3 exd5 14.cxd5 O-O 15.Bd3 
Re8 16.O-O-O Rb8 17.Nf3 Bg4 18.Rhf1 Bxf3 19.Rxf3 b5 20.Re3 Nf8 21.Rde1 Nd7
22.Kd1 a5 23.Ke2 b4 24.c4 Qd4 25.Kf1 b3 26.axb3 Rxb3 27.e5 Rb2 28.Qxa5 
dxe5 29.Qa4 Rd8 30.Bc2 Nb6 31.Rxe5 g6 32.R1e4 Nxa4 33.Rxd4 Rxc2 34.Rde4 
0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Jonkman, Meinard"]
[Black "De Rooi, Paul"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Roessel, Fritz"]
[Black "Van den Berg, Carel"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Van de Pol, Jan"]
[Black "Van Donk, Henk"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "Branicki, Ignacy"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "De Rooi, Paul"]
[Black "Roessel, Fritz"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "Langeweg, Christian"]
[Black "Jongsma, Alexander"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "Hiong Liong Tan"]
[Black "Van de Pol, Jan"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "Van Donk, Henk"]
[Black "Jonkman, Meinard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Donner, Jan"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "51"]
[ECO "A56"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Be2 O-O 7.Nf3 Nbd7 8.O-O Ne8 
9.Ne1 Bg5 10.Nd3 Rb8 11.Rb1 g6 12.g3 a6 13.a4 a5 14.f4 exf4 15.gxf4 Bf6 
16.Nb5 Ra8 17.Bf3 Bg7 18.Re1 Qh4 19.Be3 g5 20.Bf2 Qh6 21.e5 gxf4 22.exd6 
Nxd6 23.Nxd6 Qxd6 24.Kh1 b6 25.Qd2 Bh6 26.Bh4 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Jongsma, Alexander"]
[Black "Van den Berg, Carel"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Jonkman, Meinard"]
[Black "Hiong Liong Tan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Roessel, Fritz"]
[Black "Van Donk, Henk"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Van de Pol, Jan"]
[Black "Branicki, Ignacy"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "Branicki, Ignacy"]
[Black "Jonkman, Meinard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "De Rooi, Paul"]
[Black "Jongsma, Alexander"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "Donner, Jan"]
[Black "Van de Pol, Jan"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "Langeweg, Christian"]
[Black "Van den Berg, Carel"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "61"]
[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.bxc3 d6 10.Ne3 Ne5 11.d4 exd3 12.exd3 Nfg4 13.d4 Nxe3 14.fxe3 Nxc4 
15.e4 c6 16.Qh5 Rf8 17.Rf4 g6 18.Qe2 d5 19.Rf2 Be6 20.e5 f5 21.Bh6 Rf7 22.
Raf1 b5 23.g4 Qd7 24.Bh3 fxg4 25.Rxf7 Bxf7 26.Bxg4 Be6 27.Qf3 Bf5 28.Bxf5 
Qxf5 29.Qxf5 gxf5 30.Rxf5 Re8 31.e6 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "Hiong Liong Tan"]
[Black "Roessel, Fritz"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "47"]
[ECO "E70"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5 O-O 6.f4 c5 7.d5 Re8 8.Bd3 e6 9.
dxe6 Bxe6 10.Nge2 Nc6 11.O-O h6 12.Bh4 g5 13.fxg5 Ng4 14.Qd2 Nce5 15.h3 
Nxd3 16.hxg4 Ne5 17.b3 Nxg4 18.Rad1 Be5 19.Nd5 hxg5 20.Bxg5 f6 21.Bxf6 
Bxf6 22.Nxf6+ Nxf6 23.Qg5+ Kf7 24.e5 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.05"]
[Round "5"]
[White "Jongsma, Alexander"]
[Black "Van Donk, Henk"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.05"]
[Round "5"]
[White "Jonkman, Meinard"]
[Black "Donner, Jan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.05"]
[Round "5"]
[White "Roessel, Fritz"]
[Black "Branicki, Ignacy"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.05"]
[Round "5"]
[White "Van de Pol, Jan"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.05"]
[Round "5"]
[White "Van den Berg, Carel"]
[Black "De Rooi, Paul"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.06"]
[Round "6"]
[White "Donner, Jan"]
[Black "Roessel, Fritz"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.06"]
[Round "6"]
[White "Langeweg, Christian"]
[Black "De Rooi, Paul"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.06"]
[Round "6"]
[White "Hiong Liong Tan"]
[Black "Jongsma, Alexander"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.06"]
[Round "6"]
[White "Van Donk, Henk"]
[Black "Van den Berg, Carel"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.06"]
[Round "6"]
[White "Van de Pol, Jan"]
[Black "Jonkman, Meinard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "69"]
[ECO "A07"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.d3 d5 5.O-O O-O 6.Nbd2 c6 7.e4 dxe4 8.dxe4 
Bg4 9.h3 Bxf3 10.Qxf3 Nbd7 11.Qe2 e5 12.b3 Qc7 13.Nc4 Rfd8 14.Bb2 Nh5 15.
Rad1 Nc5 16.Bf3 b5 17.Bxh5 bxc4 18.Qxc4 Ne6 19.Bf3 Nd4 20.Bg2 Rd7 21.c3 
Ne6 22.Kh2 Rad8 23.Qe2 Qa5 24.a4 Qb6 25.Rxd7 Rxd7 26.b4 Qd8 27.Bc1 Rd3 28.
Qc2 a5 29.bxa5 Nc5 30.a6 Qa5 31.Ba3 Rxc3 32.Qxc3 Qxc3 33.a7 Qa5 34.Bxc5 
Bf8 35.Rb1 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.07"]
[Round "7"]
[White "De Rooi, Paul"]
[Black "Van Donk, Henk"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "60"]
[ECO "A80"]

1.d4 f5 2.Bg5 g6 3.e3 Bg7 4.h4 h6 5.Bf4 Nf6 6.Bd3 c5 7.c3 Nc6 8.a3 d6 9.
Nf3 cxd4 10.cxd4 Ng4 11.Bg3 e5 12.Bc2 exd4 13.Nxd4 Nxd4 14.exd4 Qe7+ 15.
Kf1 O-O 16.Nc3 f4 17.Nd5 Ne3+ 18.fxe3 fxg3+ 19.Kg1 Qe8 20.Bxg6 Qb5 21.Ne7+
Kh8 22.Bd3 Bxd4 23.Qe2 Qxb2 24.Qxb2 Bxb2 25.Ra2 Rf2 26.Ng6+ Kg7 27.Nf4 Bg4
28.Bf1 Rc8 29.Nd3 Be2 30.Nxf2 Rc1 0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.07"]
[Round "7"]
[White "Jongsma, Alexander"]
[Black "Branicki, Ignacy"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.07"]
[Round "7"]
[White "Jonkman, Meinard"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.07"]
[Round "7"]
[White "Roessel, Fritz"]
[Black "Van de Pol, Jan"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.07"]
[Round "7"]
[White "Van den Berg, Carel"]
[Black "Hiong Liong Tan"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "45"]
[ECO "B82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Bb7 7.O-O d6 8.f4 Nf6 
9.a3 Nbd7 10.Be3 Nc5 11.Qf3 Rc8 12.Rae1 Be7 13.Bf2 O-O 14.Qh3 Nfd7 15.Nd1 
e5 16.Nf5 Ne6 17.fxe5 dxe5 18.Nde3 Re8 19.Nd5 Bc5 20.Qg3 f6 21.Bxc5 Ndxc5 
22.Nh6+ Kf8 23.Rxf6+ 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.08"]
[Round "8"]
[White "Branicki, Ignacy"]
[Black "Van den Berg, Carel"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.08"]
[Round "8"]
[White "Donner, Jan"]
[Black "Jongsma, Alexander"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "86"]
[ECO "E30"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 Bxc3+ 6.bxc3 Qe7 7.f3 d6 8.e4 e5
9.Ne2 Nbd7 10.Bf2 Nf8 11.Be3 g5 12.Qd2 Ng6 13.Ng3 Bd7 14.Kf2 Nh4 15.Be2 
Rd8 16.a4 O-O 17.Nf1 Nh5 18.g3 f5 19.dxe5 f4 20.Bxa7 fxg3+ 21.hxg3 Nxf3 
22.Bxf3 Bg4 23.Nh2 Qxe5 24.Qd5+ Qxd5 25.cxd5 Rxf3+ 26.Ke1 Re8 27.Nxg4 
Rxe4+ 28.Kd2 Nxg3 29.Nxh6+ Kg7 30.Bd4+ Kg6 31.Rae1 Rxe1 32.Rxe1 Kxh6 33.a5
Rf8 34.Rb1 Ra8 35.Rxb7 Rxa5 36.c4 Nf5 37.Bc3 Ra2+ 38.Kd3 g4 39.Ke4 Kg6 40.
Rxc7 g3 41.Rc8 Re2+ 42.Kf4 Rf2+ 43.Ke4 Ne7 0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.08"]
[Round "8"]
[White "Jonkman, Meinard"]
[Black "Roessel, Fritz"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.08"]
[Round "8"]
[White "Langeweg, Christian"]
[Black "Van Donk, Henk"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "69"]
[ECO "A23"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 d5 6.cxd5 cxd5 7.Bg2 Nc6 8.Nxc6 
bxc6 9.d3 exd3 10.Qxd3 Be7 11.O-O O-O 12.Be3 Re8 13.Rac1 Be6 14.Na4 Qa5 
15.b3 Rac8 16.Bc5 Nd7 17.Bxe7 Rxe7 18.Rfd1 f6 19.Qd2 Qxd2 20.Rxd2 Nb6 21.
Nc5 Bf5 22.Na6 Rce8 23.e3 Rc8 24.a4 Kf8 25.a5 Na8 26.h4 Rb7 27.b4 Ke7 28.
Rd4 h5 29.Kh2 g5 30.Bf3 g4 31.Be2 Bd7 32.e4 Nc7 33.Nxc7 Rbxc7 34.Ba6 Rb8 
35.exd5 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.08"]
[Round "8"]
[White "Hiong Liong Tan"]
[Black "De Rooi, Paul"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.10"]
[Round "9"]
[White "De Rooi, Paul"]
[Black "Branicki, Ignacy"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.10"]
[Round "9"]
[White "Jongsma, Alexander"]
[Black "Van de Pol, Jan"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.10"]
[Round "9"]
[White "Roessel, Fritz"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.10"]
[Round "9"]
[White "Van Donk, Henk"]
[Black "Hiong Liong Tan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.10"]
[Round "9"]
[White "Van den Berg, Carel"]
[Black "Donner, Jan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "62"]
[ECO "B42"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Qe2 d6 8.Kh1 g6
9.f4 Bg7 10.f5 O-O 11.Bg5 Nc6 12.Nxc6 Qxc6 13.Nd2 exf5 14.exf5 Bxf5 15.
Bxf5 Rae8 16.Qd3 gxf5 17.Bxf6 Bxf6 18.Rxf5 Bg7 19.Rh5 h6 20.Rf1 Re6 21.Nc4
Rfe8 22.Rhf5 Re2 23.R5f3 b5 24.Na5 Qxc2 25.Qd5 R8e6 26.Rxf7 Qe4 27.Qxe4 
R6xe4 28.Nb7 Rxb2 29.Nxd6 Ree2 30.Rc1 Bf8 31.Rd7 Rbd2 0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.11"]
[Round "10"]
[White "Branicki, Ignacy"]
[Black "Van Donk, Henk"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.11"]
[Round "10"]
[White "Donner, Jan"]
[Black "De Rooi, Paul"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "83"]
[ECO "E62"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 c6 7.O-O Qa5 8.d5 cxd5 
9.cxd5 Nbd7 10.Nd4 Qd8 11.h3 Nb6 12.b3 Bd7 13.Bb2 Rc8 14.Qd2 a6 15.e4 Rc7 
16.f4 Qc8 17.Kh2 Ne8 18.Rac1 e5 19.dxe6 fxe6 20.Qe3 e5 21.Nf3 exf4 22.Qxb6
fxg3+ 23.Kg1 Bxc3 24.Rxc3 Rxc3 25.Qd4 Rfxf3 26.Bxf3 Bxh3 27.Qxc3 Qxc3 28.
Bxc3 Bxf1 29.Kxf1 Kf7 30.Kg2 Nc7 31.e5 Nb5 32.Bb2 dxe5 33.Bxb7 a5 34.Bxe5 
Ke6 35.Bxg3 Nc3 36.a4 Ne2 37.Be1 Nd4 38.Ba6 Kd6 39.Bc4 Nc6 40.Kf3 Kc5 41.
Ke4 h5 42.Bf7 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.11"]
[Round "10"]
[White "Jonkman, Meinard"]
[Black "Jongsma, Alexander"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.11"]
[Round "10"]
[White "Langeweg, Christian"]
[Black "Hiong Liong Tan"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "78"]
[ECO "A17"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.g3 O-O 5.Bg2 d5 6.Qb3 c5 7.a3 Ba5 8.O-O Nc6 
9.d3 Bxc3 10.Qxc3 d4 11.Qc2 Qd6 12.b4 e5 13.bxc5 Qxc5 14.Rb1 Re8 15.Nd2 
Qe7 16.Qb3 Qc7 17.Qb5 Re6 18.Ne4 Nxe4 19.Bxe4 h6 20.f4 Nd8 21.fxe5 Bd7 22.
Qb2 Rb6 23.Qa1 Rxb1 24.Qxb1 Bc6 25.Bxc6 Nxc6 26.Bf4 g5 27.Bd2 Re8 28.Qe1 
Rxe5 29.Qf2 Qe7 30.Bb4 Qe6 31.Qf3 Rxe2 32.Qh5 a5 33.Bc5 Qe3+ 34.Kh1 Rf2 
35.Qd1 Rxf1+ 36.Qxf1 Ne5 37.Qf6 Qe1+ 38.Kg2 Qe2+ 39.Qf2 Qxf2+ 0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.11"]
[Round "10"]
[White "Van de Pol, Jan"]
[Black "Van den Berg, Carel"]
[Result "1/2-1/2"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1/2-1/2

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.13"]
[Round "11"]
[White "De Rooi, Paul"]
[Black "Van de Pol, Jan"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.13"]
[Round "11"]
[White "Jongsma, Alexander"]
[Black "Roessel, Fritz"]
[Result "0-1"]
[EventDate "1961.04.29"]
[PlyCount "0"]

0-1

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.13"]
[Round "11"]
[White "Hiong Liong Tan"]
[Black "Branicki, Ignacy"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "43"]
[ECO "C70"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.d4 Nxb3 7.axb3 exd4 8.Qxd4
Bb7 9.O-O Qf6 10.Qd3 Bc5 11.Rd1 d6 12.Nc3 Ne7 13.Bg5 Qe6 14.Nxb5 axb5 15.
Qxb5+ Bc6 16.Rxa8+ Kd7 17.Qxc5 Bxa8 18.Qb5+ Kc8 19.Ra1 Bc6 20.Nd4 Qxe4 21.
Nxc6 Nxc6 22.Ra8+ 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.13"]
[Round "11"]
[White "Van Donk, Henk"]
[Black "Donner, Jan"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "115"]
[ECO "B23"]

1.e4 c5 2.Nc3 e6 3.d3 Nc6 4.f4 d5 5.Nf3 g6 6.Be2 Bg7 7.O-O Nge7 8.Qe1 b6 
9.Kh1 Bb7 10.Qh4 Nd4 11.Bd1 O-O 12.Ne2 Nxf3 13.gxf3 f5 14.e5 d4 15.Ng1 Qd7
16.Nh3 Rfc8 17.Be2 b5 18.Bd2 a5 19.Rad1 Bd5 20.Rg1 c4 21.Ng5 h6 22.Ne4 
fxe4 23.dxe4 Bc6 24.Be3 Qb7 25.Rxd4 Be8 26.Rd6 Bf7 27.f5 Bxe5 28.Rb6 Qc7 
29.fxg6 Bxg6 30.Rxe6 Kf7 31.Bb6 Kxe6 32.Bxc7 Rxc7 33.Qg4+ Kf7 34.h4 Rg8 
35.h5 Bh7 36.Qh3 Rxg1+ 37.Kxg1 Bxb2 38.Qg3 Rc6 39.Qb8 Rc5 40.a4 Bd4+ 41.
Kf1 Rg5 42.Ke1 bxa4 43.Bxc4+ Kg7 44.Qe8 Bc5 45.Qf7+ Kh8 46.Qf6+ Rg7 47.
Qxh6 Ng8 48.Qf4 Bd4 49.h6 Rb7 50.Kd2 Rd7 51.Ke2 Bc3 52.e5 Rd2+ 53.Kf1 Rd1+
54.Kg2 Re1 55.Bxg8 Bxe5 56.Qd2 Bxg8 57.Qxe1 Bb2 58.c3 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.13"]
[Round "11"]
[White "Van den Berg, Carel"]
[Black "Jonkman, Meinard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.29"]
[Round "1"]
[White "Spanjaard, Eduard"]
[Black "Jongsma, Alexander"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.04.30"]
[Round "2"]
[White "Van den Berg, Carel"]
[Black "Spanjaard, Eduard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "43"]
[ECO "B48"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nc6 7.Be3 Nf6 8.O-O 
Nxd4 9.Bxd4 Bc5 10.Bxc5 Qxc5 11.Kh1 d6 12.f4 e5 13.Qe1 exf4 14.Nd5 Ng4 15.
b4 Qc6 16.Qh4 f6 17.Rxf4 h5 18.h3 Ne5 19.Raf1 Be6 20.Nxf6+ gxf6 21.Qxf6 
Kd7 22.Qg7+ 1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.01"]
[Round "3"]
[White "Spanjaard, Eduard"]
[Black "De Rooi, Paul"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "0"]

1-0

[Event "21st NED-ch"]
[Site "The Hague NED"]
[Date "1961.05.03"]
[Round "4"]
[White "Van Donk, Henk"]
[Black "Spanjaard, Eduard"]
[Result "1-0"]
[EventDate "1961.04.29"]
[PlyCount "81"]
[ECO "B25"]

1.e4 c5 2.Nc3 Nc6 3.d3 g6 4.f4 Bg7 5.Nf3 d6 6.g3 e6 7.Bg2 Nge7 8.O-O O-O 
9.Be3 Nd4 10.Qd2 Rb8 11.Qf2 Nec6 12.Nd1 Qa5 13.c3 Nb3 14.axb3 Qxa1 15.e5 
b6 16.exd6 Ba6 17.Nh4 Na5 18.b4 Nb7 19.c4 cxb4 20.f5 exf5 21.Nc3 Qa5 22.
Nd5 Nxd6 23.Qf4 Rbd8 24.Ne7+ Kh8 25.Bd5 h6 26.Nhxg6+ fxg6 27.Nxg6+ Kh7 28.
Nxf8+ Bxf8 29.Bd4 Bb7 30.Qe5 Bxd5 31.cxd5 Qa4 32.Qh8+ Kg6 33.Qf6+ Kh7 34.
Qxd8 Kg8 35.Be5 Nf7 36.Qf6 Nxe5 37.Qxe5 Qc2 38.Qxf5 Bc5+ 39.Kh1 Qe2 40.
Qe6+ Qxe6 41.dxe6 1-0
