[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Bohm, Hans"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "81"]
[ECO "A48"]

1.d4 Nf6 2.Bf4 g6 3.Nf3 Bg7 4.e3 O-O 5.Be2 d6 6.h3 c5 7.c3 b6 8.O-O Bb7 9.
Nbd2 Nbd7 10.a4 a6 11.b4 Nd5 12.Qb3 cxb4 13.cxb4 Nxf4 14.exf4 Nf6 15.g3 
Qd7 16.Kh2 Bd5 17.Bc4 Qb7 18.Rfe1 e6 19.Qd3 Rfc8 20.Rec1 h6 21.Ng1 Bf8 22.
b5 Bxc4 23.Nxc4 Nd5 24.Qb3 axb5 25.axb5 Rxa1 26.Rxa1 Qc7 27.Ra4 Be7 28.Nf3
g5 29.fxg5 hxg5 30.Nfd2 Kg7 31.Kg2 Qb7 32.Nf3 Ra8 33.Qa3 Rxa4 34.Qxa4 f5 
35.Qa6 Qc7 36.Qa2 Bf6 37.Qe2 Kf7 38.Ne3 Nc3 39.Qd3 Ne4 40.d5 Qc3 41.dxe6+ 
1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Donner, Jan"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "52"]
[ECO "E63"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O a6 8.d5 Na5 
9.b3 Rb8 10.Nd4 Bd7 11.Qd3 c5 12.dxc6 Nxc6 13.Bb2 Nxd4 14.Qxd4 b5 15.cxb5 
axb5 16.Nd5 b4 17.e4 Ne8 18.Qd2 Bxb2 19.Qxb2 Nc7 20.Qd2 Nxd5 21.exd5 Qb6 
22.Rad1 Rfc8 23.Rfe1 Bg4 24.Rc1 Rxc1 25.Qxc1 e5 26.dxe6 Bxe6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Hartoch, Robert"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "30"]
[ECO "B24"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.Nc3 O-O 8.Bg5 d6 
9.Qd2 e5 10.a3 Be6 11.Rab1 Qd7 12.Bh6 f6 13.b4 Rac8 14.Bxg7 Kxg7 15.Ne2 
Nd4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Hofland, Leonard"]
[Black "Baljon, Christofoor"]
[Result "1/2-1/2"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "48"]
[ECO "A68"]

1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.Be2 exd5 9.
cxd5 b5 10.e5 dxe5 11.fxe5 Ng4 12.Bg5 f6 13.exf6 Bxf6 14.Bxf6 Qxf6 15.Qd2 
b4 16.Ne4 Qe7 17.Neg5 Ne3 18.d6 Qe8 19.Kf2 Ng4+ 20.Kg1 Qe3+ 21.Qxe3 Nxe3 
22.Kf2 Ng4+ 23.Kg3 Ne3 24.Kf2 Ng4+ 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Kuijpers, Franciscus"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "99"]
[ECO "C96"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Na5 10.Bc2 c5 11.d4 Nd7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 
16.Nbd2 exd4 17.Nxd4 Nxd4 18.Bxd4 Ne5 19.Nf1 Nc6 20.Bc3 Bf6 21.Ne3 Bxc3 
22.bxc3 Be6 23.Qd3 Ne5 24.Qxb5 Qg5 25.Kh1 Qf4 26.Qe2 Rfc8 27.Nd1 Bxh3 28.
Qe3 Qxe3 29.Rxe3 Be6 30.f4 Nc4 31.Rd3 d5 32.Rd4 dxe4 33.Bxe4 Ra5 34.Rb1 g6
35.Rb4 a3 36.Bd3 Nb2 37.Nxb2 axb2 38.Rxb2 Rxc3 39.a4 Rxd3 40.Rxd3 Rxa4 41.
Rf2 Kg7 42.Kh2 Ra5 43.Kg3 Ra4 44.Kf3 Bc4 45.Rc3 Bd5+ 46.Ke3 Be6 47.Rd2 Ra1
48.Rc7 Rf1 49.Rd6 Kg8 50.Rb6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Sosonko, Gennadi"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "47"]
[ECO "A43"]

1.d4 e6 2.g3 c5 3.Nf3 b6 4.Bg2 Bb7 5.O-O cxd4 6.Qxd4 Nc6 7.Qa4 Nf6 8.c4 
Bc5 9.Nc3 O-O 10.Rd1 Na5 11.b4 Bc6 12.Qa3 Be7 13.c5 Nb7 14.Be3 bxc5 15.
bxc5 Rc8 16.Rac1 Nxc5 17.Bxc5 Bxc5 18.Qxc5 Bxf3 19.Qxa7 Rc7 20.Qa3 Bxg2 
21.Kxg2 Qc8 22.f3 d5 23.Nb5 Rxc1 24.Rxc1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.17"]
[Round "1"]
[White "Van der Vliet, Fredrik"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2345"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "144"]
[ECO "A07"]

1.Nf3 d5 2.g3 c6 3.Bg2 Nf6 4.d3 Bg4 5.Nbd2 e6 6.b3 Be7 7.Bb2 Nbd7 8.h3 Bh5
9.O-O O-O 10.e4 a5 11.a4 b5 12.Qe1 bxa4 13.Rxa4 Qb6 14.e5 Ne8 15.Qe3 Nc7 
16.Rfa1 Bb4 17.g4 Qxe3 18.fxe3 Bg6 19.c3 Bc5 20.d4 Bb6 21.c4 dxc4 22.bxc4 
c5 23.Bc3 Ra6 24.Kh1 Rfa8 25.Nh4 Rd8 26.Nxg6 hxg6 27.Nb3 cxd4 28.exd4 Nxe5
29.c5 Nb5 30.Be1 Nxd4 31.Nxd4 Bxc5 32.Nb3 Bb6 33.Bxa5 Bxa5 34.Rxa5 Rxa5 
35.Rxa5 Nc4 36.Ra8 Rxa8 37.Bxa8 g5 38.Kg2 f5 39.Bf3 Kf7 40.Be2 Nd6 41.Nc5 
g6 42.Bd1 e5 43.Bb3+ Ke7 44.Kf2 Ne8 45.Nd3 Kf6 46.Nc5 Ke7 47.Nd3 Kf6 48.
Nb4 Nd6 49.Ke3 Nb7 50.Nd5+ Ke6 51.Nb4+ Kf6 52.Bd5 Nd6 53.Nc6 Nb5 54.Kd3 
Nd6 55.Ke3 Ne8 56.Kd3 Nd6 57.Kc3 Nb5+ 58.Kc4 Na3+ 59.Kd3 Nb5 60.Kd2 Nd6 
61.Bb3 Ne4+ 62.Ke3 Nc5 63.Bc4 Ne4 64.Ba2 Nc5 65.Nb4 Ke7 66.Nd3 Nd7 67.Bb3 
Kf6 68.Nb4 Ke7 69.Bc4 Kd6 70.Nd5 e4 71.Kd4 Ne5 72.Nf6 Nxc4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Baljon, Christofoor"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2220"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "61"]
[ECO "B82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 
O-O 9.O-O-O Qc7 10.g4 Nxd4 11.Rxd4 e5 12.Rc4 Bxg4 13.Qg3 Qd7 14.Rg1 g6 15.
f5 Rfc8 16.Bg5 Bh5 17.Qh4 Rxc4 18.Bxc4 Qc6 19.b3 d5 20.exd5 Qb6 21.Rf1 Kg7
22.fxg6 fxg6 23.Qg3 Qd4 24.Be3 Qg4 25.Qxe5 Re8 26.d6 Bd8 27.Qd4 Qh3 28.Nd5
Bf3 29.Nf4 Qg4 30.Be6 Rxe6 31.Nxe6+ 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Hartoch, Robert"]
[Black "Hofland, Leonard"]
[Result "1-0"]
[WhiteElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "79"]
[ECO "B08"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Qd2 b5 6.Bd3 Nbd7 7.Nf3 Bg7 8.Bh6 O-O
9.Bxg7 Kxg7 10.e5 dxe5 11.dxe5 Ng4 12.Qf4 Nc5 13.Rd1 Qb6 14.O-O f6 15.h3 
Nxd3 16.Rxd3 Nh6 17.Re1 Bf5 18.Rde3 Rad8 19.Qb4 c5 20.Qxb5 Qxb5 21.Nxb5 
Rb8 22.exf6+ exf6 23.Re7+ Kg8 24.Nd6 Bxc2 25.Rxa7 Rfd8 26.Nc4 Rd1 27.Rxd1 
Bxd1 28.Nfd2 Re8 29.Rc7 Re1+ 30.Kh2 Re2 31.Rxc5 Rxf2 32.Ne4 Rc2 33.Ne3 
Rxb2 34.Nxd1 Rxa2 35.Nxf6+ Kg7 36.Nd5 Nf5 37.N1e3 Nh4 38.Kg3 g5 39.Nc3 Ra3
40.Rxg5+ 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Langeweg, Christian"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2450"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "40"]
[ECO "E16"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.O-O O-O 8.Nc3 
Na6 9.Ne1 d5 10.cxd5 exd5 11.Nd3 Ne4 12.Bf4 c5 13.dxc5 Naxc5 14.Be5 Re8 
15.Nf4 Bg5 16.Bd4 Bxf4 17.gxf4 Qh4 18.Nxe4 Nxe4 19.Be3 Nf6 20.Bd2 Ba6 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Ligterink, Gert"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "34"]
[ECO "B76"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.O-O-O Bd7 10.g4 Rc8 11.h4 h5 12.gxh5 Nxh5 13.Rg1 Kh7 14.Be2 Nxd4 15.
Bxd4 Bh6 16.Be3 Bg7 17.Bd4 Bh6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Ree, Hans"]
[Black "Bohm, Hans"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "39"]
[ECO "D94"]

1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 g6 5.d4 Bg7 6.Be2 O-O 7.O-O Nbd7 8.b3 Re8 
9.Bb2 Qa5 10.Qd2 dxc4 11.Bxc4 Nb6 12.Bd3 Qh5 13.Ne2 Qd5 14.Rac1 Bg4 15.Ne5
Rad8 16.f3 Bc8 17.Ba3 Nh5 18.f4 f5 19.Bc5 Be6 20.Nc3 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Scheeren, Peter"]
[Black "Van der Vliet, Fredrik"]
[Result "0-1"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "44"]
[ECO "D25"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nbd7 8.O-O 
Bd6 9.Be2 O-O 10.e4 e5 11.Be3 exd4 12.Nxd4 Bxe2 13.Qxe2 Re8 14.Nf5 Be5 15.
Bg5 c6 16.Rad1 Qa5 17.Bd2 Bxc3 18.Nh6+ gxh6 19.Bxc3 Qf5 20.Rxd7 Nxd7 21.
Qd3 Rxe4 22.Rd1 Ne5 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.18"]
[Round "2"]
[White "Van der Sterren, Paul"]
[Black "Donner, Jan"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "102"]
[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 
Bb4 9.a3 Bxc3+ 10.bxc3 Nxd4 11.cxd4 Nb6 12.Bd2 a5 13.a4 Bd7 14.c3 Bc6 15.
Bd3 Qd7 16.Bc2 Nc4 17.Bc1 f5 18.g4 O-O 19.O-O b5 20.gxf5 exf5 21.Re1 Rae8 
22.axb5 Bxb5 23.Ba3 Rf7 24.Bc5 Re6 25.Kh1 Bc6 26.Qe2 Qd8 27.Rab1 g6 28.Rg1
Qh4 29.Rb8+ Kg7 30.Qf3 Nd2 31.Qg3 Qh5 32.Qe3 Ne4 33.Bb6 Bb5 34.Rd1 Qh4 35.
Bb3 Rd7 36.Bd8 Rxd8 37.Rxb5 Rc6 38.Rc1 Qf2 39.Qxf2 Nxf2+ 40.Kg1 Nh3+ 41.
Kf1 Nxf4 42.Rxa5 Rb6 43.Ba4 Rb2 44.Rc2 Rb1+ 45.Kf2 Ra1 46.Ra7+ Kh6 47.Kf3 
g5 48.Rb2 Rc8 49.Rb3 Rf1+ 50.Kg3 g4 51.e6 Rf3+ 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Bohm, Hans"]
[Black "Scheeren, Peter"]
[Result "1-0"]
[WhiteElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "71"]
[ECO "C75"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bd7 6.Re1 Nge7 7.c3 Ng6 8.d4 Be7
9.Nbd2 h6 10.Nf1 Bg5 11.Ne3 Bxe3 12.Bxe3 O-O 13.dxe5 Ncxe5 14.Nxe5 Nxe5 
15.Bb3 Ng4 16.Bf4 Qe7 17.h3 Ne5 18.Qd4 Bxh3 19.Re3 Bd7 20.Rg3 Kh7 21.Bd5 
Rab8 22.Rd1 Ng6 23.Be3 f5 24.exf5 Bxf5 25.b4 Ne5 26.a4 b6 27.b5 a5 28.Bf4 
Bg6 29.Bxe5 dxe5 30.Qg4 Rf6 31.Be4 Qe8 32.Rd7 Rc8 33.Bxg6+ Rxg6 34.Qf5 e4 
35.Rf7 Qe6 36.Rxg7+ 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "49"]
[ECO "E99"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 Kh8 13.g4 c6 14.Nf2 Bd7 15.Kg2 a6 16.
a3 b5 17.cxb5 cxb5 18.h4 Rf7 19.Rc1 Nc8 20.Qe1 Nb6 21.b3 Be8 22.Na2 Nfd7 
23.Nd3 Nf6 24.Nf2 Nfd7 25.Nd3 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Hofland, Leonard"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "69"]
[ECO "A34"]

1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.Qa4 Bd7 8.Qe4 
g6 9.Ne5 Bg7 10.Nxd7 Qxd7 11.O-O O-O 12.d3 Ne6 13.Qa4 Rab8 14.Be3 Kh8 15.
Rac1 f5 16.b3 Rfd8 17.Bxc6 bxc6 18.Qa3 Bd4 19.Na4 Rb5 20.Rc4 Qd6 21.Rfc1 
f4 22.Bxd4+ Nxd4 23.Nc3 Qe6 24.Rxd4 cxd4 25.Nxb5 cxb5 26.Qa5 Rd6 27.Rc2 a6
28.Qc7 Kg7 29.Qb7 fxg3 30.hxg3 h5 31.Rc7 Kf7 32.Qf3+ Kg7 33.Qb7 Kf7 34.
Qf3+ Kg7 35.Qb7 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Kuijpers, Franciscus"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "50"]
[ECO "B08"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Bg4 5.Be2 Nf6 6.Be3 O-O 7.Qd2 Nc6 8.O-O e5
9.d5 Ne7 10.Rad1 Nd7 11.Ng5 Bxe2 12.Qxe2 h6 13.Nh3 Kh7 14.Kh1 Ng8 15.f4 
exf4 16.Rxf4 Ne5 17.Rdf1 Qd7 18.Bd4 Rae8 19.Qd1 a6 20.Ng1 h5 21.h3 Qe7 22.
R4f2 Nh6 23.Nge2 c5 24.dxc6 bxc6 25.Be3 Rd8 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Sosonko, Gennadi"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "49"]
[ECO "E18"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O b6 7.Ne5 Bb7 8.Nc3 Na6 
9.b3 c5 10.Bb2 Ne4 11.Nxe4 dxe4 12.dxc5 Nxc5 13.b4 Qxd1 14.Raxd1 Na4 15.
Rd7 Bxb4 16.Rxb7 Nxb2 17.Bxe4 f5 18.Bc6 Bd6 19.Nf3 Nxc4 20.Rd1 Na5 21.Rxd6
Nxb7 22.Bxb7 Rae8 23.Bc6 Re7 24.Ne5 g5 25.Bd7 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Timman, Jan"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "69"]
[ECO "B81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 a6 10.O-O-O Qb6 11.Nb3 Qc7 12.f4 b5 13.Bg2 Bb7 14.h4 O-O-O 15.f5
Kb8 16.fxe6 fxe6 17.Nd4 Nxd4 18.Qxd4 Be7 19.Bh3 e5 20.Qe3 b4 21.Nd5 Nxd5 
22.exd5 Bxg5 23.hxg5 Qa5 24.Qe4 Rhf8 25.Rhf1 Rxf1 26.Bxf1 Rf8 27.Qg6 Qc7 
28.Bc4 Ka7 29.b3 Bc8 30.Rf1 Rxf1+ 31.Bxf1 Bb7 32.Bc4 a5 33.Qe8 Qc5 34.Qd7 
Qe3+ 35.Kb1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.19"]
[Round "3"]
[White "Van der Vliet, Fredrik"]
[Black "Baljon, Christofoor"]
[Result "1-0"]
[WhiteElo "2345"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "115"]
[ECO "E69"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nbd7 7.Nc3 e5 8.e4 c6 
9.h3 Re8 10.Re1 Qa5 11.d5 c5 12.a3 a6 13.Be3 Qc7 14.Bf1 Nf8 15.b4 b6 16.
Rb1 Bd7 17.bxc5 bxc5 18.Qc2 Reb8 19.Rxb8 Rxb8 20.Rb1 Nh5 21.Kh2 Rxb1 22.
Qxb1 f5 23.Bd2 Bf6 24.Be2 Bd8 25.exf5 Bxf5 26.Bd3 Qf7 27.Ne4 Bxe4 28.Bxe4 
Nf6 29.Be3 Nxe4 30.Qxe4 Qc7 31.Kg2 Nd7 32.Qg4 Nf8 33.Nd2 Qd7 34.Qd1 Qf5 
35.Qa4 a5 36.Qc6 Qd7 37.Ne4 Qxc6 38.dxc6 Bc7 39.Nf6+ Kf7 40.Nd5 Ne6 41.f4 
a4 42.fxe5 dxe5 43.Nxc7 Nxc7 44.Bxc5 Ke6 45.Kf3 Ne8 46.Ke3 h5 47.Kd3 Ng7 
48.c7 Kd7 49.Bd6 h4 50.Bxe5 Nf5 51.g4 Ne7 52.Bf6 Nc6 53.Bxh4 Kxc7 54.Bg3+ 
Kd7 55.h4 Ke6 56.Bf4 Ne7 57.Kd4 Ng8 58.Bg5 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Baljon, Christofoor"]
[Black "Bohm, Hans"]
[Result "1-0"]
[WhiteElo "2220"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "113"]
[ECO "B01"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Bc4 Bg4 6.Nf3 Nc6 7.Bb5 e6 8.Qd3 
Bb4 9.Ne5 O-O 10.Bxc6 bxc6 11.Nxc6 Bxc3+ 12.Qxc3 Qb5 13.f3 Bf5 14.a4 Qa6 
15.b4 Rfe8 16.Kf2 Qb6 17.Qc4 a6 18.Ba3 Nd7 19.b5 e5 20.Bc5 Nxc5 21.dxc5 
Qb7 22.Rhe1 Bd7 23.Nxe5 Be6 24.bxa6 Qb2 25.Qe4 f6 26.Nc6 Rxa6 27.Qd4 Qxc2+
28.Re2 Qg6 29.Nd8 f5 30.c6 Bb3 31.Rxe8+ Qxe8 32.Qd3 Rb6 33.a5 Rb8 34.Nb7 
Bf7 35.Rc1 Qe5 36.Kg1 Qb2 37.Qc3 Qb5 38.Qc5 Qa6 39.Qxf5 Re8 40.Qc5 Qe2 41.
Kh1 Re5 42.Qd4 Bd5 43.Qd1 Qxd1+ 44.Rxd1 Bxc6 45.a6 Bxb7 46.axb7 Re8 47.Rb1
Rb8 48.Kg1 Kf7 49.f4 Ke6 50.g4 g6 51.Kf2 Kd5 52.Ke3 Kc6 53.h4 Kd5 54.Kd3 
h5 55.gxh5 gxh5 56.Ke3 c6 57.Kd3 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Hartoch, Robert"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "40"]
[ECO "B53"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.dxc5 Nxe4 5.cxd6 Nxd6 6.Nc3 Bg4 7.h3 Bh5 8.g4 
Bg6 9.Ne5 Nd7 10.Nxg6 hxg6 11.Bg2 e6 12.O-O Be7 13.Bf4 Qb6 14.Re1 Rd8 15.
Qf3 g5 16.Bg3 Nc5 17.b3 O-O 18.Rad1 Nc8 19.Be5 Qb4 20.Ne4 b6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Hofland, Leonard"]
[Black "Kuijpers, Franciscus"]
[Result "1/2-1/2"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "73"]
[ECO "A22"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.e4 Bxc3 6.dxc3 d6 7.Ne2 b6 8.O-O 
Bb7 9.Qc2 Nbd7 10.Rd1 Qe7 11.f3 Rfe8 12.Be3 c6 13.g4 Red8 14.Rd2 Nf8 15.
Ng3 g6 16.h4 Ne6 17.g5 Ne8 18.Ne2 h6 19.f4 hxg5 20.fxg5 N8c7 21.Rf1 Kg7 
22.Ng3 Rh8 23.Rdf2 Nd8 24.h5 Bc8 25.h6+ Kh7 26.Nf5 Qf8 27.Qd3 Ne8 28.Ng3 
Be6 29.b3 Qe7 30.Rd2 Nb7 31.Nf5 Qd7 32.b4 Rd8 33.Ng3 Rf8 34.a4 Nc7 35.Rf6 
Ne8 36.Rf1 Qc7 37.Ra1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Langeweg, Christian"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "62"]
[ECO "A30"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 e6 5.O-O Be7 6.b3 O-O 7.Bb2 c5 8.Nc3 d6 
9.d4 cxd4 10.Qxd4 a6 11.Rfd1 Nbd7 12.h3 Qc7 13.Rac1 Rad8 14.Qe3 Rfe8 15.
Nd4 Bxg2 16.Kxg2 Bf8 17.Kg1 Rc8 18.Qf3 Qb8 19.Rd2 Qc7 20.Rcd1 Ne5 21.Qg2 
Red8 22.Rc2 h6 23.Rcc1 Ned7 24.Nb1 Re8 25.Kh2 Qb8 26.Nc3 Qc7 27.Ba3 Nc5 
28.Rc2 Ncd7 29.Rdc1 Qb8 30.Bb2 Qa7 31.Rd1 Qb8 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Ree, Hans"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "23"]
[ECO "A30"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.b3 c5 8.Bb2 cxd4 
9.Qxd4 Nc6 10.Qf4 d5 11.Rd1 Qc8 12.Nbd2 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Scheeren, Peter"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "41"]
[ECO "E18"]

1.Nf3 d5 2.g3 e6 3.Bg2 Nf6 4.O-O Be7 5.d4 O-O 6.c4 b6 7.Nc3 Bb7 8.Ne5 Qc8 
9.cxd5 exd5 10.Qb3 Qe6 11.Nd3 Rd8 12.Bf4 c6 13.Rac1 Nbd7 14.e4 dxe4 15.
Qxe6 fxe6 16.Nxe4 Nf8 17.Ne5 Nxe4 18.Bxe4 Rxd4 19.Bxc6 Bxc6 20.Nxc6 Rd7 
21.Nxe7+ 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.20"]
[Round "4"]
[White "Van der Sterren, Paul"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "84"]
[ECO "E20"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 c5 5.d5 Bxc3+ 6.bxc3 Nh5 7.g3 f5 8.Nh3 Qf6
9.Bd2 O-O 10.Bg2 d6 11.O-O Qg6 12.e4 fxe4 13.fxe4 Rxf1+ 14.Qxf1 e5 15.Ng5 
h6 16.Ne6 Bxe6 17.dxe6 Nc6 18.Bh3 Nf6 19.Bf5 Qh5 20.Qg2 Nh7 21.Rf1 Qe8 22.
Bxh6 Nf8 23.Bc1 Nd8 24.Qd2 Qe7 25.Qg5 Qxg5 26.Bxg5 Ndxe6 27.Be7 Re8 28.
Bxd6 g6 29.Bg4 b6 30.Rf6 Ng5 31.Bxf8 Nxe4 32.Rf3 Rxf8 33.Re3 Ng5 34.Rxe5 
Nf3+ 35.Bxf3 Rxf3 36.Re7 Rxc3 37.Rxa7 Rxc4 38.Rb7 Rb4 39.Kf2 b5 40.h4 Rb2+
41.Ke3 b4 42.Rc7 Rxa2 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Bohm, Hans"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "68"]
[ECO "A80"]

1.d4 g6 2.Bf4 Bg7 3.e3 f5 4.Nf3 Nf6 5.Bc4 d5 6.Be2 Be6 7.Nbd2 c6 8.c4 dxc4
9.Bxc4 Bd5 10.Qb3 Qb6 11.Qa3 Nbd7 12.O-O a5 13.b3 Qb4 14.Qc1 e6 15.Qc2 O-O
16.h3 Rfc8 17.Ne5 Nxe5 18.Bxe5 Ne4 19.Nxe4 fxe4 20.Bxg7 Kxg7 21.Rfc1 Rf8 
22.Bf1 Rf5 23.Qc5 Rf7 24.Rc2 h5 25.h4 Kf6 26.Be2 Rg7 27.f4 b5 28.Rac1 Rga7
29.Qb6 a4 30.bxa4 Qxa4 31.Kf2 Qa5 32.Qc5 Qa3 33.Qb6 Qa5 34.Qc5 Qa3 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Donner, Jan"]
[Black "Baljon, Christofoor"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "117"]
[ECO "E67"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.b3 c6 
9.Ba3 exd4 10.Nxd4 Nc5 11.Qc2 a5 12.Rad1 Qe7 13.e4 Nfd7 14.h3 Nb6 15.Bc1 
a4 16.Be3 Bd7 17.Rfe1 axb3 18.axb3 Ra3 19.Nb1 Ra7 20.b4 Nca4 21.c5 dxc5 
22.bxc5 Na8 23.Nd2 Nc7 24.N2b3 Ne6 25.Nb5 Ra6 26.Nd6 Nc3 27.Rd2 Ra2 28.Qc1
Rfa8 29.Nxb7 R2a3 30.Qc2 Rb8 31.N7a5 Rb5 32.Qd3 Be8 33.Rc2 Rbxb3 34.Nxb3 
Rxb3 35.Rec1 Nxc5 36.Qc4 Rb5 37.Rxc3 Bxc3 38.Rxc3 Ne6 39.Kh2 Qb4 40.Qd3 
Qb1 41.Qxb1 Rxb1 42.f4 Rb4 43.Ra3 f6 44.Ra8 Kf7 45.Ra7+ Kg8 46.f5 Nd4 47.
g4 g5 48.Re7 Bf7 49.Rd7 c5 50.Rc7 Rb3 51.Bg1 Rc3 52.Bf2 h5 53.Bg3 Rc2 54.
Bd6 Nf3+ 55.Kh1 Rc1+ 56.Bf1 Nd2 57.Rc8+ Kh7 58.Rc7 Kg7 59.e5 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Kuijpers, Franciscus"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "23"]
[ECO "B44"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O Rb8 11.Be3 Qa5 12.Nc2 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Ligterink, Gert"]
[Black "Van der Sterren, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "63"]
[ECO "B08"]

1.Nf3 g6 2.d4 Bg7 3.e4 d6 4.Nc3 Nf6 5.Be2 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 e5
9.d5 Ne7 10.Rad1 Bd7 11.Ne1 Ng4 12.Bxg4 Bxg4 13.f3 Bd7 14.f4 Bg4 15.Rb1 c6
16.fxe5 dxe5 17.h3 cxd5 18.Bc5 Be6 19.exd5 Re8 20.dxe6 Qxd2 21.exf7+ Kh8 
22.fxe8=Q+ Rxe8 23.Rd1 Qg5 24.Ne4 Qh5 25.Nf3 Nf5 26.Nfg5 Qe2 27.Rd2 Qb5 
28.Bf2 Qxb2 29.Rfd1 h6 30.Rd8 Rg8 31.Nf7+ Kh7 32.Neg5+ 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Sosonko, Gennadi"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "81"]
[ECO "A69"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.Be2 exd5 9.
cxd5 Re8 10.e5 dxe5 11.fxe5 Ng4 12.Bg5 Qb6 13.O-O Nxe5 14.d6 Nbd7 15.Nd5 
Qxb2 16.Rb1 Nxf3+ 17.Bxf3 Qd4+ 18.Kh1 Qxd1 19.Rfxd1 Rb8 20.Be7 b6 21.Nc7 
Rf8 22.Bc6 Ne5 23.Bxf8 Bxf8 24.Bb5 Bd7 25.Rd5 Bxb5 26.Nxb5 Nd7 27.Re1 Rd8 
28.Nxa7 Ra8 29.Nc6 Rxa2 30.g3 Ra8 31.Rdd1 Kg7 32.Kg2 Rc8 33.Ne5 Rd8 34.Nc6
Rc8 35.Ne7 Rd8 36.g4 h6 37.h4 b5 38.g5 hxg5 39.hxg5 Nb6 40.Kg3 Rd7 41.Re5 
1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Timman, Jan"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "121"]
[ECO "C91"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.d4 Bg4 10.d5 Na5 11.Bc2 c5 12.h3 Bd7 13.Nxe5 dxe5 14.d6 Be6 15.dxe7 Qxe7
16.Nd2 Rfd8 17.Qf3 c4 18.Nf1 Nb7 19.Bg5 h6 20.Bd2 Kh8 21.Qg3 Bc8 22.a4 
bxa4 23.Rxa4 Bd7 24.Ra2 Nc5 25.Qh4 Bc6 26.Bg5 Kg8 27.Bxf6 Qxf6 28.Qxf6 
gxf6 29.f3 Rab8 30.Kf2 Bd7 31.Rd1 Be6 32.Rxd8+ Rxd8 33.Ra5 Rc8 34.Ne3 Kf8 
35.h4 Rc6 36.g3 Nb7 37.Ra2 Nd6 38.f4 Kg7 39.Kf3 Rb6 40.Bd1 Bc8 41.Be2 Bb7 
42.Nxc4 Bxe4+ 43.Ke3 Nxc4+ 44.Kxe4 Nxb2 45.Ke3 a5 46.Kd2 e4 47.Kc2 Nd3 48.
Bxd3 exd3+ 49.Kxd3 Rd6+ 50.Kc4 Rc6+ 51.Kd4 Rd6+ 52.Kc5 Rd3 53.c4 Rxg3 54.
Rxa5 Rg4 55.Kb6 Rxh4 56.c5 Rxf4 57.c6 Re4 58.c7 Re6+ 59.Kb7 Re7 60.Kc6 Re8
61.Kd7 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.21"]
[Round "5"]
[White "Van der Vliet, Fredrik"]
[Black "Hofland, Leonard"]
[Result "0-1"]
[WhiteElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "72"]
[ECO "E63"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nc6 7.Nc3 a6 8.b3 Rb8 
9.Bb2 b5 10.cxb5 axb5 11.Rc1 b4 12.Nb1 Na5 13.Ne1 Bb7 14.Nd3 Bxg2 15.Kxg2 
Rb5 16.Nd2 Re8 17.Qc2 Qa8+ 18.Kg1 Rc8 19.Rfe1 Nd7 20.e4 e6 21.e5 d5 22.Nf3
Bh6 23.Rcd1 c5 24.dxc5 Nxc5 25.Qe2 Nxd3 26.Qxd3 Rbc5 27.Re2 Nc6 28.h4 Ne7 
29.h5 Rc3 30.Bxc3 Rxc3 31.Qb5 Rxf3 32.hxg6 hxg6 33.Qxb4 Nf5 34.Rc2 d4 35.
Qc4 Qe4 36.Qe2 Be3 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Baljon, Christofoor"]
[Black "Sosonko, Gennadi"]
[Result "0-1"]
[WhiteElo "2220"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "56"]
[ECO "D32"]

1.b3 d5 2.Bb2 Nf6 3.c4 e6 4.Nf3 Be7 5.e3 O-O 6.Nc3 c5 7.cxd5 exd5 8.d4 Bg4
9.Be2 Nc6 10.dxc5 Bxc5 11.O-O a6 12.Rc1 Ba7 13.Nd4 Bd7 14.Nxc6 Bxc6 15.Bf3
Ne4 16.Qd3 Re8 17.Rcd1 Qh4 18.g3 Qh6 19.Bg2 Rac8 20.a4 Nc5 21.Qc2 Nd7 22.
Bxd5 Bxd5 23.Rxd5 Nf6 24.Qf5 Nxd5 25.Nxd5 Bc5 26.Rc1 Qe6 27.Qg5 Qg6 28.
Ne7+ Bxe7 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Hartoch, Robert"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "77"]
[ECO "C56"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 d5 6.Bb5 Nd7 7.O-O Be7 8.Re1 
O-O 9.Bxc6 bxc6 10.Nxd4 Nb8 11.Nd2 c5 12.N4f3 Nc6 13.Nf1 Be6 14.Bf4 Qd7 
15.Ng5 Bg4 16.f3 Bf5 17.Ne3 Rad8 18.g4 Bg6 19.Ng2 Nd4 20.Rc1 f6 21.exf6 
Bxf6 22.Nh3 Rde8 23.c3 Rxe1+ 24.Nxe1 Ne6 25.Ng2 d4 26.Bg3 Qc6 27.Ngf4 Bf7 
28.Nd3 dxc3 29.bxc3 Rd8 30.Qe2 Qa6 31.Nhf2 Bg6 32.Re1 Bxd3 33.Qxe6+ Qxe6 
34.Rxe6 Bxc3 35.Bxc7 Rd7 36.Rc6 Bd4 37.Bd6 Bb5 38.Rc8+ Kf7 39.Bxc5 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Hofland, Leonard"]
[Black "Bohm, Hans"]
[Result "0-1"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "86"]
[ECO "A10"]

1.c4 b6 2.Nc3 e6 3.e4 Bb7 4.g3 f5 5.d3 Nf6 6.Bg2 Bb4 7.Bg5 Bxc3+ 8.bxc3 
fxe4 9.dxe4 h6 10.Bxf6 Qxf6 11.Ne2 e5 12.O-O Na6 13.Nf4 O-O-O 14.Nd5 Bxd5 
15.cxd5 Nc5 16.Qe2 h5 17.Rfb1 g5 18.Rb5 Qd6 19.Bf1 Rdf8 20.Qe3 g4 21.Rab1 
Kd8 22.Bg2 a6 23.R5b2 Qh6 24.Re2 Ke7 25.Rf1 h4 26.Qxh6 Rxh6 27.f3 gxf3 28.
Rxf3 Rxf3 29.Bxf3 hxg3 30.hxg3 Kf6 31.Kg2 Kg5 32.Rd2 Na4 33.Rc2 b5 34.Bd1 
Nc5 35.Bf3 Nb7 36.c4 c5 37.cxb5 axb5 38.Be2 Rb6 39.Rb2 b4 40.a4 Na5 41.Bb5
b3 42.Kf1 c4 43.Rf2 Rf6 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Kuijpers, Franciscus"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[WhiteElo "2415"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "57"]
[ECO "B84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Be2 e6 8.Be3 Be7
9.Bf3 O-O 10.g4 Nc6 11.g5 Nd7 12.Qe2 Nxd4 13.Bxd4 b5 14.a3 Bb7 15.h4 e5 
16.Be3 exf4 17.Bxf4 Ne5 18.O-O-O Rab8 19.Bg4 Bc6 20.h5 b4 21.axb4 Rxb4 22.
g6 Bf6 23.h6 fxg6 24.Be6+ Kh8 25.hxg7+ Qxg7 26.Rxd6 Rfb8 27.Bb3 Bb5 28.
Nxb5 R4xb5 29.Rxf6 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Langeweg, Christian"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[WhiteElo "2450"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "82"]
[ECO "B37"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 d6 7.Nc2 Bg7 8.Be2 
Nd7 9.Bd2 O-O 10.O-O Nc5 11.f3 a5 12.Be3 a4 13.Qd2 Qa5 14.Na3 Qb4 15.Rac1 
f5 16.exf5 Bxf5 17.Rf2 Rf7 18.Nab5 Ne5 19.Nc7 Raf8 20.N7d5 Qa5 21.Nxe7+ 
Rxe7 22.Qxd6 Rc7 23.Nd5 Rfc8 24.Nxc7 Qxc7 25.Rd1 Ncd3 26.Qxc7 Rxc7 27.g4 
Nxf2 28.Rd8+ Kf7 29.gxf5 Nh3+ 30.Kg2 Nc6 31.Rd5 Re7 32.fxg6+ hxg6 33.Kxh3 
Rxe3 34.Bd1 Bxb2 35.Bxa4 Rxf3+ 36.Kg2 Ra3 37.Bb3 Ke6 38.Rb5 Ra7 39.Bc2 Be5
40.Bxg6 Rxa2+ 41.Kf1 Rb2 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Ree, Hans"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "57"]
[ECO "A30"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Re1 c5 8.e4 d6 
9.d4 cxd4 10.Nxd4 Qd7 11.b3 a6 12.Ba3 Nc6 13.Rc1 Rfd8 14.Nxc6 Qxc6 15.Qe2 
Bf8 16.Bb2 Nd7 17.f4 b5 18.cxb5 Qb6+ 19.Kh1 axb5 20.a3 b4 21.Na4 Qa5 22.
Red1 bxa3 23.Bxa3 Nb6 24.Rd4 Nxa4 25.Rxa4 Qb6 26.Rb4 Qa7 27.Ra4 Qb6 28.Rb4
Qa7 29.Ra4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.22"]
[Round "6"]
[White "Scheeren, Peter"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "81"]
[ECO "A64"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O Re8 10.Nd2 Nbd7 11.h3 a6 12.a4 Rb8 13.Nc4 Nb6 14.Na3 Qe7 15.Re1 Nfd7
16.f4 Bd4+ 17.Kh2 Nf6 18.a5 Na8 19.e4 h5 20.Nc2 h4 21.g4 Bf2 22.Rf1 Bg3+ 
23.Kg1 Bd7 24.e5 dxe5 25.f5 gxf5 26.Bg5 Bf4 27.Bxh4 Qd6 28.gxf5 Bxf5 29.
Ne2 Nh5 30.Nxf4 Nxf4 31.Ra3 Nc7 32.Rg3+ Bg6 33.Ne3 Nb5 34.Nc4 Qd7 35.Nxe5 
Rxe5 36.Rxf4 Nd4 37.Bf6 Qd6 38.Bxe5 Qxe5 39.Rxg6+ fxg6 40.Rg4 Ne2+ 41.Kh1 
1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Bohm, Hans"]
[Black "Kuijpers, Franciscus"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "80"]
[ECO "E07"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 Be7 5.g3 O-O 6.Bg2 dxc4 7.O-O Nbd7 8.a4 c5
9.a5 Nd5 10.e4 Nb4 11.d5 Bf6 12.Bf4 Nd3 13.Qc2 Bxc3 14.Qxc3 Nxf4 15.gxf4 
exd5 16.exd5 Qf6 17.Qxc4 Qxb2 18.Rfd1 Rb8 19.d6 b5 20.axb6 axb6 21.Ra7 b5 
22.Qe4 c4 23.Ng5 Nf6 24.Qe5 Qc2 25.Re1 Bd7 26.Re2 Qb1+ 27.Re1 Qd3 28.Re3 
Qg6 29.h4 Ng4 30.Qe7 Nxe3 31.fxe3 h6 32.Rxd7 hxg5 33.Be4 Qe6 34.hxg5 Rbe8 
35.Qxe6 Rxe6 36.Bd5 Rxe3 37.Rb7 Rd3 38.Rxb5 c3 39.g6 c2 40.gxf7+ Kh8 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Donner, Jan"]
[Black "Hofland, Leonard"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "59"]
[ECO "E63"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.Nc3 Nc6 7.O-O a6 8.b3 Rb8 
9.Bb2 b5 10.cxb5 axb5 11.Rc1 b4 12.Nb1 Na7 13.Qc2 c6 14.Ne1 Qb6 15.Nd3 Bf5
16.Rfe1 d5 17.Nd2 e6 18.f3 Bxd3 19.Qxd3 Nd7 20.e3 c5 21.f4 Rfc8 22.Nf3 Qa5
23.Qb1 c4 24.Rc2 Nb5 25.Bf1 Nc3 26.Bxc3 bxc3 27.Rec1 cxb3 28.axb3 Bf8 29.
Ne1 Qb4 30.Qa1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Ligterink, Gert"]
[Black "Scheeren, Peter"]
[Result "1-0"]
[WhiteElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "61"]
[ECO "B33"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Nxc6 dxc6 7.Qxd8+ Kxd8 
8.Bf4 e6 9.O-O-O+ Ke8 10.Be2 b5 11.Rd2 Ra7 12.Rhd1 Rd7 13.Rxd7 Bxd7 14.Bg3
Bb4 15.Bf3 h5 16.h4 Ng4 17.e5 Nh6 18.Bxh5 Be7 19.Ne4 g6 20.Bf3 Nf5 21.Nf6+
Bxf6 22.exf6 Nxh4 23.Be4 Nf5 24.Bc7 Rh4 25.Bxc6 Rd4 26.Bb7 Rc4 27.Bb6 e5 
28.b3 Rc3 29.Rh1 Be6 30.Rh8+ Kd7 31.Rd8# 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Sosonko, Gennadi"]
[Black "Hartoch, Robert"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "103"]
[ECO "A40"]

1.d4 g6 2.c4 c5 3.d5 e5 4.dxe6 dxe6 5.Qxd8+ Kxd8 6.Nc3 Bh6 7.g3 Bd7 8.Bg2 
Bc6 9.Nf3 Nd7 10.O-O Ke7 11.Rd1 Bxc1 12.Raxc1 Ngf6 13.Rd2 Rhd8 14.Rcd1 Nb6
15.Ne5 Bxg2 16.Kxg2 Rxd2 17.Rxd2 Nfd7 18.Nxd7 Nxd7 19.f4 Rd8 20.b3 f5 21.
e4 Nb6 22.Rxd8 Kxd8 23.Kh3 Ke7 24.g4 fxe4 25.Nxe4 Nd7 26.g5 b6 27.Kg4 Nb8 
28.h4 Kf7 29.h5 gxh5+ 30.Kxh5 Kg7 31.Nd6 Nc6 32.Nc8 Nb4 33.Nxa7 Nxa2 34.
Nc8 Nc1 35.Nxb6 Nxb3 36.Nd7 Nd2 37.Nxc5 Nxc4 38.Nxe6+ Kg8 39.f5 Nd6 40.Kg4
Kf7 41.Kf4 Ke7 42.Nc5 Kf7 43.Nd7 Kg7 44.Ne5 Kg8 45.Ng4 Kf7 46.Ke5 Ne8 47.
Nf2 Kf8 48.Ne4 Ke7 49.Nc3 Kf7 50.Nd5 Kg7 51.Ke6 Kf8 52.f6 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Timman, Jan"]
[Black "Baljon, Christofoor"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "53"]
[ECO "B23"]

1.e4 c5 2.Nc3 d6 3.f4 Nc6 4.Nf3 g6 5.Bc4 Bg7 6.O-O e6 7.f5 exf5 8.d3 Nf6 
9.Qe1 O-O 10.Qh4 Nd4 11.Bg5 Be6 12.Nxd4 cxd4 13.exf5 dxc3 14.fxe6 d5 15.e7
Qxe7 16.Bb3 cxb2 17.Rae1 Qc5+ 18.d4 Qb4 19.Bxf6 Bxf6 20.Qxf6 Rad8 21.h4 
Rd6 22.Qf4 Re6 23.Re5 a5 24.c3 Qxc3 25.Rxe6 b1=Q 26.Rxb1 fxe6 27.Qe5 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Van der Sterren, Paul"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "65"]
[ECO "B85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.f4 O-O 8.O-O a6
9.Qe1 Qc7 10.Kh1 Nc6 11.Be3 Nxd4 12.Bxd4 b5 13.e5 dxe5 14.fxe5 Nd7 15.Bf3 
Rb8 16.Qg3 Bc5 17.Bxc5 Qxc5 18.Rae1 b4 19.Nd1 Rb5 20.Nf2 Nxe5 21.Ne4 Qe7 
22.Nf6+ Kh8 23.Nxh7 Kxh7 24.Rxe5 Rxe5 25.Qxe5 Kg8 26.Rd1 Bb7 27.Bxb7 Qxb7 
28.Rd4 Qc6 29.h3 Qxc2 30.Rg4 Qh7 31.Kh2 b3 32.axb3 Qh6 33.Ra4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.24"]
[Round "7"]
[White "Van der Vliet, Fredrik"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2345"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "84"]
[ECO "A07"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.d3 Nd7 5.Nbd2 e6 6.b3 Ngf6 7.Bb2 Bd6 8.O-O 
O-O 9.h3 Bh5 10.e4 Ne8 11.d4 f5 12.e5 Be7 13.c4 f4 14.g4 Bg6 15.Qe2 Nc7 
16.Nb1 h5 17.Nc3 hxg4 18.hxg4 Qe8 19.Rfd1 Bh7 20.Ne1 Qf7 21.a3 a5 22.c5 g5
23.Na4 Ra6 24.Rac1 Bg6 25.f3 Qh7 26.Bf1 Raa8 27.Qh2 Qg7 28.Bc3 Kf7 29.Qb2 
Rfb8 30.Nd3 Nb5 31.Be1 Rh8 32.Nf2 Nc7 33.Bg2 Qh7 34.Nh3 Nb5 35.Nc3 Nc7 36.
b4 b5 37.cxb6 Nxb6 38.bxa5 Nc4 39.Qb7 Ne3 40.Qxc7 Qxh3 41.Bxh3 Rxh3 42.Rd2
Rah8 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Baljon, Christofoor"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2220"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "99"]
[ECO "B80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Qc7
9.Re1 Be7 10.Nxc6 bxc6 11.b3 Nf6 12.e5 dxe5 13.Bb2 O-O 14.Na4 e4 15.Nc3 e5
16.Nxe4 Nxe4 17.Bxe4 f5 18.Bxe5 Qxe5 19.Bxc6 Qxe1+ 20.Qxe1 Bxc6 21.Qxe7 
Rae8 22.Qc5 Rf6 23.a4 f4 24.Qc4+ Kh8 25.Qxa6 Rfe6 26.Rf1 Bf3 27.Qa5 Re2 
28.Qc3 Bg4 29.a5 Bh3 30.a6 Bxf1 31.Kxf1 R2e6 32.gxf4 Rxa6 33.b4 Rb6 34.Qd4
Reb8 35.c3 R6b7 36.Ke2 Rb6 37.Kd3 Rh6 38.b5 Rxh2 39.Qd6 Re8 40.b6 Rh1 41.
Qc6 Rd8+ 42.Kc2 Rhd1 43.b7 R1d2+ 44.Kb3 Rf8 45.Qc7 Rdd8 46.c4 h6 47.c5 Kh7
48.c6 Rd1 49.Kc2 Rd5 50.Qe7 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Hartoch, Robert"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "48"]
[ECO "C47"]

1.e4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.d4 exd4 5.Nd5 Nxe4 6.Qe2 f5 7.Bf4 d6 8.O-O-O
Ne7 9.Nxe7 Bxe7 10.g4 c5 11.Bh3 fxg4 12.Qxe4 d5 13.Qe5 O-O 14.Rhg1 Bf6 15.
Qh5 gxf3 16.Rg3 Bh4 17.Bxc8 Rxc8 18.Bg5 Bxg5+ 19.Rxg5 Qe8 20.Qh6 Rf7 21.
Rdg1 Rcc7 22.Rxd5 Rce7 23.Kd1 Re5 24.Rxe5 Qxe5 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Hofland, Leonard"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "22"]
[ECO "A23"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 Qb6 6.Nb3 a5 7.d3 a4 8.Nd2 e3 9.
fxe3 Ng4 10.Nde4 Nxe3 11.Qd2 Nxf1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Kuijpers, Franciscus"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "17"]
[ECO "B08"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 e5
9.dxe5 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Langeweg, Christian"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2450"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "63"]
[ECO "E92"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 Nc6 10.h3 Nh6 11.dxe5 dxe5 12.Be3 f5 13.Qd5+ Qxd5 14.Nxd5 fxe4 15.
Ng5 Nd4 16.Nxc7 Nc2+ 17.Kd2 Nxe3 18.fxe3 Rb8 19.c5 Bd7 20.g4 b6 21.Kc3 
Rfc8 22.Bc4+ Kh8 23.Nce6 Bxe6 24.Nxe6 b5 25.Bd5 Ng8 26.b4 Ne7 27.Bxe4 a5 
28.a3 Rb6 29.Nxg7 Kxg7 30.Rad1 Rc7 31.Rd7 axb4+ 32.Kxb4 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Scheeren, Peter"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "51"]
[ECO "A60"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 b5 6.Bg2 d6 7.Nf3 Bb7 8.O-O g6 
9.Bf4 Bg7 10.Nc3 a6 11.e4 O-O 12.Re1 b4 13.Na4 a5 14.Qc2 Re8 15.Bxd6 Qxd6 
16.e5 Qd8 17.exf6 Bxf6 18.Nxc5 Rxe1+ 19.Nxe1 Bc8 20.Rd1 Bf5 21.Be4 Bg4 22.
Bf3 Bf5 23.Qe2 Nd7 24.Nxd7 Qxd7 25.g4 Re8 26.Qa6 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.25"]
[Round "8"]
[White "Van der Vliet, Fredrik"]
[Black "Bohm, Hans"]
[Result "0-1"]
[WhiteElo "2345"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "83"]
[ECO "A07"]

1.Nf3 d5 2.g3 Bf5 3.Bg2 e6 4.b3 Be7 5.Bb2 Bf6 6.Qc1 Bxb2 7.Qxb2 Qf6 8.d4 
c5 9.c3 Nd7 10.Nbd2 Ne7 11.O-O Nc6 12.Rfe1 cxd4 13.Nxd4 Nxd4 14.cxd4 Nb6 
15.e4 dxe4 16.Nxe4 Bxe4 17.Bxe4 O-O-O 18.Red1 Kb8 19.a4 Rd6 20.a5 Nd5 21.
b4 Rc8 22.Rac1 Rxc1 23.Rxc1 Qd8 24.Rc4 h6 25.Bxd5 Rxd5 26.Qc3 a6 27.Qe3 
Qd6 28.Qc3 g5 29.Kg2 g4 30.Qe3 h5 31.Qh6 Ka7 32.Qg7 Rb5 33.Rc5 Rxb4 34.
Qxf7 Qxd4 35.Rc1 Qe4+ 36.Kg1 Rb1 37.Rxb1 Qxb1+ 38.Kg2 Qe4+ 39.Kg1 Qe1+ 40.
Kg2 Qxa5 41.Qxe6 Qc5 42.f4 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Bohm, Hans"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "80"]
[ECO "A43"]

1.e4 e6 2.d4 c5 3.d5 exd5 4.exd5 d6 5.Nc3 Nf6 6.Bd3 Be7 7.Nge2 O-O 8.O-O 
Na6 9.Ng3 Nc7 10.Be2 a6 11.a4 b6 12.Re1 Re8 13.Bf3 Bd7 14.Bf4 Bf8 15.Nge4 
Nxe4 16.Nxe4 Bf5 17.c3 b5 18.axb5 axb5 19.Rxa8 Nxa8 20.Ng3 Bg6 21.Rxe8 
Qxe8 22.h4 h6 23.h5 Bh7 24.b4 cxb4 25.cxb4 Nb6 26.Nf1 Nc4 27.Qe2 Qa8 28.
Nd2 Qa1+ 29.Kh2 Qd4 30.g3 Bd3 31.Qe1 Qc3 32.Be2 Bxe2 33.Qxe2 Qxb4 34.Ne4 
Nb6 35.Bxh6 gxh6 36.Nf6+ Kg7 37.Ne8+ Kh8 38.Qf3 Qd4 39.Qxf7 Bg7 40.Nxd6 
Qf6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Donner, Jan"]
[Black "Van der Vliet, Fredrik"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "161"]
[ECO "E54"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O cxd4 8.exd4 
dxc4 9.Bxc4 b6 10.Bg5 Bb7 11.Qe2 Bxc3 12.bxc3 Nbd7 13.Bd3 Qc7 14.Rac1 Ng4 
15.Be4 Bxe4 16.Qxe4 Ngf6 17.Qe2 Rac8 18.c4 Qb7 19.Rfe1 Rc6 20.Rc2 Rfc8 21.
Rec1 Qa6 22.h3 h6 23.Bf4 Rd8 24.Qe3 Rdc8 25.Qb3 Qa5 26.g4 Rd8 27.a4 Qa6 
28.Qb5 Qb7 29.Nd2 Qc8 30.a5 Nf8 31.Nf3 Ng6 32.Bh2 Qb7 33.Qb3 Rdc8 34.axb6 
Rxb6 35.Qd3 a5 36.Nd2 Qa6 37.Qe3 Rb4 38.Ra2 Qb6 39.Rca1 Ra8 40.Qc3 a4 41.
Ra3 Ne8 42.Bg3 Ne7 43.f3 Qb7 44.R1a2 Nc6 45.Kg2 Nf6 46.Bd6 Rb6 47.Rxa4 
Rxa4 48.Rxa4 Ra6 49.Rxa6 Qxa6 50.Bg3 Qb7 51.Kf1 Qd7 52.Nb3 Qa7 53.Be1 Qa2 
54.Bd2 Qb1+ 55.Nc1 Qb8 56.Kg2 Ne7 57.Ne2 Qc7 58.h4 h5 59.g5 Nd7 60.Ng3 g6 
61.Qb3 Nc8 62.Ne4 Ncb6 63.c5 Nd5 64.Qb5 Kg7 65.Nd6 Qa7 66.Kf2 e5 67.Qc4 
Qa8 68.c6 N7b6 69.Qc5 Qa2 70.Ne4 Na4 71.Qd6 Nac3 72.Qxe5+ Kh7 73.Nxc3 Nxc3
74.Qf4 Nb1 75.c7 Nxd2 76.c8=Q Ne4+ 77.Ke3 Qd2+ 78.Kxe4 f5+ 79.gxf6 Qxf4+ 
80.Kxf4 g5+ 81.Kf5 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Ligterink, Gert"]
[Black "Hartoch, Robert"]
[Result "1-0"]
[WhiteElo "2440"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "61"]
[ECO "B09"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 O-O 6.Be2 c5 7.dxc5 Qa5 8.O-O 
Qxc5+ 9.Kh1 Bg4 10.Bd3 Nc6 11.Qe1 Nb4 12.Be3 Nxd3 13.cxd3 Qb4 14.Qd2 Rfc8 
15.Nd4 Bd7 16.h3 Nh5 17.Qf2 Bc6 18.a3 Qa5 19.b4 Qd8 20.f5 Nf6 21.g4 Be8 
22.Rac1 Qd7 23.Qh4 Rc7 24.g5 Nh5 25.Nd5 Rcc8 26.f6 Rxc1 27.Rxc1 exf6 28.
gxf6 Bxf6 29.Qxh5 Bxd4 30.Bxd4 gxh5 31.Rg1+ 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Ree, Hans"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "120"]
[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 Na6 10.Bb5 Nc7 11.Bd3 Bd7 12.Nge2 b5 13.a3 a5 14.O-O Qb8 15.b4 Qb7 
16.Rfb1 a4 17.g4 Nfe8 18.Ng3 Bf6 19.Kg2 Ng7 20.Bh6 Qb6 21.Rh1 Bh4 22.Rac1 
Rfc8 23.Rc2 Rab8 24.Rf1 Nce8 25.Be3 Qd8 26.Rfc1 Rb7 27.Qe2 Rcb8 28.Qd2 f6 
29.h3 Bg5 30.f4 exf4 31.Bxf4 Bxf4 32.Qxf4 Qe7 33.Nce2 Qe5 34.Qxe5 fxe5 35.
g5 Kf7 36.Ng1 Ke7 37.Nf3 Kd8 38.Nh2 Nh5 39.Nxh5 gxh5 40.Nf3 Rc8 41.Nh4 
Rxc2+ 42.Rxc2 h6 43.gxh6 Nf6 44.Rf2 Ke7 45.Ng6+ Kf7 46.Nh8+ Ke7 47.h7 Nxh7
48.Rf7+ Kd8 49.h4 Kc8 50.Rxh7 Bh3+ 51.Kxh3 Rxh7 52.Bxb5 Rxh8 53.Bxa4 Rf8 
54.Bd1 Rf4 55.Bxh5 Kd8 56.Bg6 Ke7 57.a4 Kf6 58.Bf5 Rf3+ 59.Kg4 Rb3 60.b5 
Rb4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Sosonko, Gennadi"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "71"]
[ECO "A90"]

1.d4 e6 2.c4 Bb4+ 3.Bd2 Qe7 4.g3 f5 5.Bg2 Nf6 6.Nf3 O-O 7.O-O Bxd2 8.Qxd2 
Ne4 9.Qe3 d6 10.Nh4 g5 11.Nxf5 exf5 12.f3 f4 13.Qxe4 Qxe4 14.fxe4 Nc6 15.
Rd1 Ne7 16.Nc3 c6 17.d5 Rd8 18.dxc6 Nxc6 19.Rd5 Ne5 20.gxf4 gxf4 21.c5 Be6
22.Rxd6 Rxd6 23.cxd6 Rd8 24.Rd1 Nc4 25.e5 Nxe5 26.Bxb7 Nc4 27.Nb5 Nxb2 28.
Rd4 Nc4 29.a4 a5 30.Kf2 Kg7 31.Kf3 Rb8 32.Bd5 Bxd5+ 33.Rxd5 Nb6 34.Rd4 Kf6
35.d7 Ke7 36.Na7 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Timman, Jan"]
[Black "Hofland, Leonard"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "81"]
[ECO "E80"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 Nc6 6.Be3 a6 7.Nge2 Rb8 8.Nc1 e5 
9.Nb3 exd4 10.Nxd4 O-O 11.Be2 Nxd4 12.Bxd4 c5 13.Be3 b5 14.Qd2 b4 15.Nd1 
Bb7 16.O-O Ne8 17.Nf2 Qe7 18.Rad1 f5 19.exf5 Rxf5 20.Bd3 Rf7 21.Rfe1 Qf6 
22.Re2 Re7 23.Ne4 Qf8 24.Bb1 Be5 25.h4 Bxe4 26.Bxe4 Nf6 27.Bb1 Rbe8 28.
Rde1 Bg3 29.Bf2 Bxf2+ 30.Kxf2 Rxe2+ 31.Rxe2 Rxe2+ 32.Qxe2 Qe8 33.Qxe8+ 
Nxe8 34.Ke3 Nf6 35.g4 Kf7 36.Kf4 Nd7 37.g5 Ne5 38.b3 Nc6 39.h5 Nd4 40.Bd3 
Ne6+ 41.Kg4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.26"]
[Round "9"]
[White "Van der Sterren, Paul"]
[Black "Baljon, Christofoor"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "85"]
[ECO "B60"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Qb6 7.Nb3 e6 8.Bxf6 
gxf6 9.Be2 Be7 10.O-O O-O 11.Kh1 Kh8 12.f4 Rg8 13.Bg4 a6 14.Bh3 Rg7 15.f5 
Ne5 16.Rb1 Qe3 17.Qc1 Nc4 18.Qxe3 Nxe3 19.Rf2 Bd7 20.fxe6 fxe6 21.Nd5 exd5
22.Bxd7 dxe4 23.Re2 Ng4 24.h3 Ne5 25.Be6 Bd8 26.Nd4 Bb6 27.Nf5 Rc7 28.Bd5 
e3 29.b3 Ng6 30.Rf1 Ne7 31.Nxe7 Rxe7 32.Rxf6 Rd8 33.g4 Kg7 34.Rf5 Rf8 35.
Rxf8 Kxf8 36.Kg2 Kg7 37.Kf3 Kf6 38.Kf4 Ba5 39.h4 Bd2 40.g5+ Kg7 41.c4 b5 
42.Kf3 Re5 43.Rg2 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Baljon, Christofoor"]
[Black "Ree, Hans"]
[Result "0-1"]
[WhiteElo "2220"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "82"]
[ECO "C02"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 c4 7.Nbd2 Na5 8.Rb1 Bd7 9.
b3 cxb3 10.c4 Ne7 11.c5 Qc7 12.Bd3 Ba4 13.O-O Nec6 14.Bb2 Be7 15.Qe2 b6 
16.Rbc1 O-O 17.Rfe1 Rab8 18.Bb1 bxc5 19.Qd3 g6 20.dxc5 f5 21.exf6 Bxf6 22.
Bxf6 Rxf6 23.Ng5 Qf4 24.Ndf3 Ne5 25.Qa6 Nxf3+ 26.Nxf3 Nc6 27.Bd3 b2 28.Rb1
e5 29.Kh1 e4 30.Qxa4 exf3 31.Qxf4 Rxf4 32.Re3 Nd4 33.Re5 Ne2 34.c6 Rd4 35.
gxf3 Nf4 36.Bf1 Rd2 37.c7 Rc8 38.Re7 Rc2 39.Kg1 d4 40.Re4 d3 41.Rxf4 d2 
0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Bohm, Hans"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "142"]
[ECO "D03"]

1.d4 d5 2.Nf3 Nf6 3.Bg5 e6 4.e3 Be7 5.Nbd2 h6 6.Bh4 Nbd7 7.Bd3 b6 8.c3 O-O
9.a4 c5 10.O-O Bb7 11.Qb1 Re8 12.a5 bxa5 13.Qa2 Ne4 14.Bxe7 Rxe7 15.Qxa5 
Qb8 16.Bb5 Nb6 17.Rfc1 Rc7 18.Nxe4 dxe4 19.Nd2 cxd4 20.cxd4 Qd8 21.Bf1 Bd5
22.Rc3 Rb7 23.Ba6 Re7 24.Rc5 Rb8 25.h3 Kh7 26.b3 Na8 27.Bc4 Nb6 28.Qa3 
Rbb7 29.Ba6 Rbc7 30.Rac1 f5 31.Rxc7 Rxc7 32.Rxc7 Qxc7 33.Qc5 Qxc5 34.dxc5 
Na8 35.Kf1 Nc7 36.Be2 Kg6 37.Ke1 Kf7 38.Kd1 Bb7 39.Nc4 Ba6 40.Kd2 e5 41.
Kc3 Nd5+ 42.Kb2 Ke6 43.h4 Nb4 44.Kc3 Nd5+ 45.Kd2 Nb4 46.g4 f4 47.Nd6 Bd3 
48.Bxd3 exd3 49.exf4 exf4 50.Nf5 Kf6 51.h5 Nc6 52.Kxd3 Ne5+ 53.Ke4 Nxg4 
54.c6 Ke6 55.Nxg7+ Kd6 56.f3 Nf6+ 57.Kxf4 Kxc6 58.Kf5 Nd7 59.Ne6 Kd6 60.f4
a5 61.Nd4 Kd5 62.Nc2 Nc5 63.b4 axb4 64.Nxb4+ Kd4 65.Kg6 Ne6 66.Kf5 Ng7+ 
67.Kg6 Ne6 68.f5 Nf4+ 69.Kxh6 Ke5 70.Kg5 Nh3+ 71.Kg6 Nf4+ 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Hartoch, Robert"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "154"]
[ECO "A48"]

1.Nf3 Nf6 2.d4 g6 3.Bf4 Bg7 4.c3 O-O 5.h3 d6 6.Nbd2 Nc6 7.e3 Qe8 8.Nc4 b5 
9.Na3 a6 10.Be2 e5 11.Bh2 e4 12.Nd2 Bf5 13.Nc2 Rb8 14.a4 bxa4 15.Qc1 Na5 
16.O-O Qd7 17.Na3 h5 18.Bxa6 Bh6 19.Re1 g5 20.Bf1 h4 21.Nac4 Nb3 22.Nxb3 
Rxb3 23.Qc2 Rfb8 24.Reb1 g4 25.hxg4 Nxg4 26.Be2 Nxh2 27.Kxh2 Kg7 28.Na5 
R3b6 29.d5 Bg6 30.Nc6 Ra8 31.Rxa4 Rxa4 32.Qxa4 Qf5 33.Qd4+ Kh7 34.Kg1 Bg5 
35.Qd1 Kg7 36.Bg4 Qf6 37.Qd4 Qxd4 38.Nxd4 Bf6 39.Bd7 Bxd4 40.cxd4 Kf6 41.
b4 Ke7 42.Bc6 Ra6 43.Rb2 Ra1+ 44.Kh2 Bf5 45.Bb5 Kd8 46.Be2 Rc1 47.g3 hxg3+
48.Kxg3 Ke7 49.Kf4 Bg6 50.Bg4 Kf6 51.b5 Rf1 52.Bh3 Rh1 53.Kg3 Rg1+ 54.Bg2 
Bf5 55.b6 cxb6 56.Rxb6 Ke7 57.Rb7+ Ke8 58.Rb2 Bg6 59.Rb8+ Ke7 60.Rb7+ Ke8 
61.Kh2 Ra1 62.Bh3 Ra5 63.Bd7+ Kf8 64.Bc6 Ra2 65.Kg3 Bf5 66.Rb8+ Ke7 67.
Re8+ Kf6 68.f3 exf3 69.Kxf3 Kg5 70.e4 Bg4+ 71.Ke3 Ra3+ 72.Kd2 Kf4 73.e5 
Ke4 74.exd6+ Kxd4 75.Re7 Ra2+ 76.Ke1 Rh2 77.d7 Rh8 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Hofland, Leonard"]
[Black "Ligterink, Gert"]
[Result "0-1"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "71"]
[ECO "A21"]

1.c4 e5 2.g3 f5 3.Bg2 Nf6 4.Nc3 g6 5.d3 Bg7 6.e3 d6 7.Nge2 O-O 8.O-O c6 9.
b4 Be6 10.b5 Qc7 11.bxc6 bxc6 12.Ba3 Nbd7 13.Qa4 Rac8 14.Rab1 Rf7 15.Rb2 
g5 16.Rfb1 Nb6 17.Qa5 Nfd7 18.f4 gxf4 19.gxf4 e4 20.Nd4 Bxd4 21.exd4 exd3 
22.d5 Nxd5 23.Qxc7 Nxc7 24.Bxd6 Ne8 25.Ba3 Nb6 26.Bc5 Nxc4 27.Rb8 Rfc7 28.
Rxc8 Bxc8 29.Rd1 d2 30.Bf1 Ned6 31.Nb1 Rg7+ 32.Kh1 Be6 33.h3 Ne4 34.Bxc4 
Bxc4 35.Nxd2 Bd5 36.Nf3 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Kuijpers, Franciscus"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "80"]
[ECO "B33"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 d6 7.Bf4 e5 8.Bg5 
a6 9.Na3 Be6 10.Nc4 Rc8 11.Bd3 Be7 12.Bxf6 Bxf6 13.Ne3 Bg5 14.Ned5 O-O 15.
O-O Ne7 16.Nxe7+ Qxe7 17.Qe2 g6 18.g3 h5 19.Kh1 Bf6 20.a4 Kg7 21.Nd5 Bxd5 
22.exd5 h4 23.f4 Rce8 24.Rae1 hxg3 25.hxg3 e4 26.Bxe4 Bxb2 27.Qg4 Qf6 28.
f5 g5 29.Kg2 Bd4 30.Rh1 Rh8 31.Rxh8 Rxh8 32.Rh1 Rxh1 33.Kxh1 Be3 34.Kg2 
Qc3 35.Qe2 Kf6 36.Qd3 Qe1 37.Kf3 Bf2 38.Kg4 Bxg3 39.Bg2 Qe5 40.Qxg3 Qxf5+ 
0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Langeweg, Christian"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "82"]
[ECO "A48"]

1.Nf3 Nf6 2.d4 g6 3.Bf4 Bg7 4.e3 O-O 5.Be2 d6 6.h3 Nbd7 7.O-O Qe8 8.c4 e5 
9.Bh2 Ne4 10.Qc2 f5 11.Na3 Qe7 12.Rad1 Re8 13.Nb5 Nb8 14.c5 Nc6 15.cxd6 
cxd6 16.dxe5 dxe5 17.Nd2 Nxd2 18.Rxd2 Be6 19.Bc4 Rec8 20.Qb3 Bxc4 21.Qxc4+
Kf8 22.Nc3 Rd8 23.Nd5 Qf7 24.Rfd1 Rac8 25.Qb5 Ne7 26.Nc3 Rxd2 27.Rxd2 Nc6 
28.Bg3 Bf6 29.f3 Kg7 30.Rd5 Rc7 31.a3 a6 32.Qd3 Ne7 33.Rxe5 Rc6 34.Ra5 Qe6
35.Kh2 b5 36.a4 b4 37.Ne2 Bxb2 38.Nd4 Qc4 39.Qxc4 Rxc4 40.Rxa6 Kf7 41.Ra7 
Bxd4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.28"]
[Round "10"]
[White "Van der Vliet, Fredrik"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[WhiteElo "2345"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "71"]
[ECO "E15"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7 7.Bg2 c6 8.O-O d5 
9.cxd5 cxd5 10.Bg5 Nc6 11.Bxf6 Bxf6 12.Na3 Qd6 13.Nc2 g5 14.h3 Rg8 15.Re1 
g4 16.hxg4 Rxg4 17.e3 h5 18.Bf1 Bxf1 19.Kxf1 O-O-O 20.Rc1 Kb8 21.Ke2 e5 
22.dxe5 Bxe5 23.Qd3 Qe6 24.Rh1 d4 25.Rxh5 Bf6 26.e4 Rxe4+ 27.Kf1 Re8 28.
Kg2 Kb7 29.Qc4 Qxc4 30.bxc4 Re2 31.Rd5 R8e7 32.Ncxd4 Nxd4 33.Nxd4 Rxa2 34.
Nb5 a6 35.Nd6+ Kc6 36.Rcd1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Donner, Jan"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "45"]
[ECO "E44"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ne4 6.Qc2 Bb7 7.a3 Bxc3+ 8.Nxc3 
f5 9.b3 d6 10.Bb2 O-O 11.d5 Nxc3 12.Qxc3 e5 13.f4 Nd7 14.Bd3 Qh4+ 15.g3 
Qe7 16.O-O c6 17.dxc6 Bxc6 18.Rae1 Rae8 19.e4 exf4 20.gxf4 fxe4 21.Bxe4 
Bxe4 22.Rxe4 Qf7 23.Re3 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Ligterink, Gert"]
[Black "Kuijpers, Franciscus"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "82"]
[ECO "C79"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bd7 6.c3 Nf6 7.Re1 g6 8.d4 Qe7 
9.b4 Bg7 10.Nbd2 O-O 11.a3 Nh5 12.Nf1 exd4 13.Bxc6 bxc6 14.cxd4 Bg4 15.Bb2
c5 16.Ne3 Qxe4 17.Nxg4 Qxg4 18.h3 Qd7 19.bxc5 dxc5 20.Ne5 Bxe5 21.Rxe5 
cxd4 22.Qxd4 Qxd4 23.Bxd4 Nf4 24.Be3 Ne6 25.Rc1 Rfd8 26.Rc6 Kg7 27.Ra5 
Rd1+ 28.Kh2 Rd6 29.Rxd6 cxd6 30.Rd5 Rd8 31.Bd2 Kf6 32.Ra5 Ra8 33.Bb4 Ke7 
34.Kg3 Nc7 35.Re5+ Kd7 36.Re2 a5 37.Bd2 Ne6 38.Be3 Rb8 39.Rd2 Rb3 40.a4 f5
41.Kh2 f4 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Ree, Hans"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "44"]
[ECO "A68"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.f4 O-O 7.Nf3 e6 8.Be2 exd5 9.
cxd5 Bg4 10.O-O Nbd7 11.Ng5 Bxe2 12.Qxe2 Re8 13.e5 dxe5 14.f5 e4 15.fxg6 
hxg6 16.Be3 Ne5 17.Rad1 b6 18.Ngxe4 Nxe4 19.Nxe4 Qd7 20.Bh6 Qg4 21.Qxg4 
Nxg4 22.Bxg7 Rxe4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Scheeren, Peter"]
[Black "Baljon, Christofoor"]
[Result "0-1"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "126"]
[ECO "E92"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Qe7 8.dxe5 
dxe5 9.Nd5 Nxd5 10.cxd5 c6 11.d6 Qd8 12.Qd2 Re8 13.Rd1 Be6 14.Ng5 Bf8 15.
Qb4 b6 16.Qc3 Bxd6 17.Nxe6 Rxe6 18.Bc4 Qf8 19.O-O Re8 20.Bh6 Qxh6 21.Rxd6 
b5 22.Bb3 a5 23.a3 a4 24.Ba2 Ra7 25.Rfd1 Qh4 26.Qd3 Kg7 27.g3 Qe7 28.Qc3 
Kg8 29.h4 Rc8 30.Qd3 Kg7 31.f4 Rcc7 32.Qc3 Nd7 33.h5 Nf6 34.fxe5 Nxe4 35.
h6+ Kxh6 36.Qe3+ Ng5 37.Rf6 Rd7 38.Rdf1 Qd8 39.Bb1 c5 40.Qxc5 Rac7 41.Qe3 
Rd1 42.Rxd1 Qxd1+ 43.Rf1 Qd5 44.Kf2 Re7 45.Re1 f6 46.Qf4 Qc5+ 47.Kg2 Rxe5 
48.Rxe5 Qxe5 49.Qxe5 fxe5 50.Bd3 Ne6 51.Bxb5 Nc5 52.Be2 Kg5 53.Bd1 h5 54.
Bc2 e4 55.Kh3 Nd3 56.Kh2 Nc5 57.Kh3 Kh6 58.Bd1 g5 59.Kg2 g4 60.Kf2 Kg5 61.
Ke3 h4 62.gxh4+ Kxh4 63.Be2 Kg3 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Sosonko, Gennadi"]
[Black "Bohm, Hans"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "63"]
[ECO "C01"]

1.d4 e6 2.Nf3 b6 3.e4 Ba6 4.Bxa6 Nxa6 5.O-O g6 6.Qe2 Nb8 7.d5 Bg7 8.Bg5 
Ne7 9.Nc3 h6 10.Bh4 g5 11.Bg3 O-O 12.Rad1 Ng6 13.e5 Ne7 14.h4 g4 15.Nd4 
exd5 16.Qxg4 Nbc6 17.Nxd5 Nxd4 18.Nf6+ Kh8 19.Rxd4 d6 20.Nh5 Rg8 21.exd6 
Nf5 22.Nxg7 Nxd4 23.Qxd4 c5 24.Qc3 Rxg7 25.Be5 Qf8 26.Rd1 Kg8 27.Bxg7 Qxg7
28.d7 Rd8 29.Qxg7+ Kxg7 30.Kh2 Kf6 31.Kg3 Kf5 32.Rd5+ 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Timman, Jan"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "85"]
[ECO "B96"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.e5 dxe5 
9.fxe5 Qc7 10.Qe2 Nfd7 11.O-O-O Bb7 12.Qg4 Qxe5 13.Be2 Bc5 14.Rhf1 Bxd4 
15.Rxd4 f6 16.Bh4 O-O 17.Rfd1 Qe3+ 18.Kb1 f5 19.Qh5 g6 20.Qg5 Qxg5 21.Bxg5
Ne5 22.g4 Nbc6 23.R4d2 fxg4 24.Ne4 Rf7 25.Nf6+ Kg7 26.Nxg4 h5 27.Ne3 Re8 
28.h4 Nb4 29.Rd6 Nbc6 30.c4 bxc4 31.Nxc4 a5 32.Rxc6 Nxc6 33.Nd6 Ref8 34.
Nxf7 Rxf7 35.Bc4 Bc8 36.Bd2 Re7 37.Bb5 Nb4 38.Bc3+ e5 39.a3 Bf5+ 40.Ka1 
Nc2+ 41.Ka2 Nd4 42.Bxd4 exd4 43.Rxd4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.04.29"]
[Round "11"]
[White "Van der Sterren, Paul"]
[Black "Hofland, Leonard"]
[Result "1-0"]
[WhiteElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "129"]
[ECO "D46"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 Nf6 5.Nf3 Be7 6.Bd3 O-O 7.O-O Nbd7 8.Qe2 
dxc4 9.Bxc4 b5 10.Bd3 b4 11.Ne4 Qb6 12.Nxf6+ Bxf6 13.e4 e5 14.dxe5 Nxe5 
15.Nxe5 Bxe5 16.Be3 c5 17.f4 Bd4 18.Bxd4 cxd4 19.e5 g6 20.Qd2 Re8 21.Rae1 
Bf5 22.Bxf5 gxf5 23.Qd3 Qe6 24.Qxd4 Red8 25.Qxb4 Qxa2 26.Rd1 Rdb8 27.Qe7 
Rxb2 28.Qg5+ Kh8 29.Qf6+ Kg8 30.Qg5+ Kh8 31.Rd3 Rb6 32.Qxf5 Rg8 33.Qe4 Qc2
34.Re3 Qd2 35.Rh3 Rbg6 36.g3 Rb8 37.f5 Rb4 38.fxg6 Rxe4 39.gxf7 Qd4+ 40.
Kh1 Rf4 41.gxf4 Qe4+ 42.Kg1 Kg7 43.Ra3 Qd4+ 44.Kh1 Kxf7 45.Rff3 a5 46.Rae3
Qd1+ 47.Kg2 Qc2+ 48.Kg3 Qg6+ 49.Kf2 Qc2+ 50.Re2 Qf5 51.Rd2 Ke7 52.Ke3 a4 
53.Rd3 Qe6 54.Kf2 h5 55.f5 Qa2+ 56.Kg3 Qg8+ 57.Kf2 Qa2+ 58.Kg1 Qa1+ 59.Kg2
Qb2+ 60.Kh3 Qb4 61.Rg3 Qe1 62.Rdf3 a3 63.f6+ Kf7 64.Rg7+ Kf8 65.f7 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Bohm, Hans"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2585"]
[EventDate "1978.04.17"]
[PlyCount "23"]
[ECO "C55"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.Nc3 d6 6.a3 Bg4 7.h3 Bh5 8.Be3 Nd7 
9.Nd5 Nb6 10.Nxb6 axb6 11.Qd2 Bxf3 12.gxf3 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Donner, Jan"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2575"]
[EventDate "1978.04.17"]
[PlyCount "57"]
[ECO "E59"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 d5 6.Nf3 O-O 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bd3 e5 12.Qc2 Re8 13.dxe5 Nxe5 14.Nxe5 Qxe5 15.
f3 Bd7 16.a4 Rad8 17.Re1 Bc6 18.e4 Nd5 19.Bd2 Nf4 20.Bf1 c4 21.Be3 Nd3 22.
Bxd3 cxd3 23.Qd2 Qa5 24.Ra2 f5 25.exf5 Qxf5 26.Bxa7 Rxe1+ 27.Qxe1 Qd5 28.
Rd2 Bxa4 29.Bd4 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Hartoch, Robert"]
[Black "Scheeren, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "52"]
[ECO "E15"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qa4 c6 6.Nc3 b5 7.cxb5 cxb5 8.Nxb5 
Qb6 9.Nc3 Bb4 10.Bd2 O-O 11.Bg2 Nc6 12.O-O Bxc3 13.bxc3 Bxe2 14.Rfb1 Qa5 
15.Qxa5 Nxa5 16.Ne5 Rac8 17.Rb4 Nc4 18.Nxc4 Bxc4 19.Ra4 a6 20.Bb7 Rc7 21.
Bxa6 Bxa6 22.Rxa6 Ne4 23.Be1 Nxc3 24.Bxc3 Rxc3 25.a4 Rfc8 26.a5 Kf8 
1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Hofland, Leonard"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[BlackElo "2500"]
[EventDate "1978.04.17"]
[PlyCount "43"]
[ECO "A40"]

1.c4 b6 2.d4 e6 3.d5 Nf6 4.a3 Ba6 5.e3 exd5 6.cxd5 Bxf1 7.Kxf1 Bd6 8.Nc3 
O-O 9.Nge2 Re8 10.f3 c6 11.e4 cxd5 12.Nxd5 Nc6 13.Bg5 Nxd5 14.Qxd5 Be7 15.
Bxe7 Nxe7 16.Qd6 Rc8 17.Rd1 Rc2 18.Qxd7 Qxd7 19.Rxd7 f5 20.Kf2 fxe4 21.
fxe4 Nc6 22.Rc1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Kuijpers, Franciscus"]
[Black "Van der Sterren, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2400"]
[EventDate "1978.04.17"]
[PlyCount "46"]
[ECO "C01"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 exd5 5.Bd3 Ne7 6.Nf3 Bf5 7.O-O O-O 8.Bxf5
Nxf5 9.Qd3 Ne7 10.a3 Bxc3 11.Qxc3 Ng6 12.Qb3 b6 13.Re1 Nc6 14.Qd3 Qd7 15.
Bd2 Rfe8 16.Rxe8+ Rxe8 17.Re1 Rxe1+ 18.Bxe1 Qe6 19.Kf1 h6 20.Qe3 Qd7 21.g3
Nce7 22.Kg2 Qf5 23.Bb4 Qf6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Langeweg, Christian"]
[Black "Baljon, Christofoor"]
[Result "0-1"]
[WhiteElo "2450"]
[BlackElo "2220"]
[EventDate "1978.04.17"]
[PlyCount "52"]
[ECO "E94"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Nbd7 8.O-O Qe7
9.Qc2 exd4 10.Bxd4 Ne5 11.h3 c6 12.Rfe1 Nh5 13.Be3 f5 14.Nxe5 Bxe5 15.Bxh5
f4 16.Bf3 fxe3 17.Rxe3 Qg5 18.Kf1 Be6 19.Ne2 Rf7 20.Rd1 Raf8 21.Rdd3 Qh4 
22.Ke1 c5 23.b3 g5 24.Qd1 Rf6 25.Rxd6 Bxd6 26.e5 Rxf3 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.01"]
[Round "12"]
[White "Van der Vliet, Fredrik"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2345"]
[BlackElo "2440"]
[EventDate "1978.04.17"]
[PlyCount "143"]
[ECO "E66"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nc6 7.Nc3 a6 8.d5 Na5 
9.Nd2 c5 10.Qc2 Rb8 11.b3 b5 12.Bb2 Bh6 13.f4 bxc4 14.bxc4 e5 15.dxe6 Bxe6
16.Nd5 Bxd5 17.cxd5 Rxb2 18.Qxb2 Bg7 19.Qa3 Ng4 20.Rab1 Re8 21.Bf3 Bd4+ 
22.Kh1 Ne3 23.Rfc1 h5 24.h4 Qd7 25.Kh2 Ng4+ 26.Kg2 Nf2 27.Rh1 Nxh1 28.Rxh1
Qb5 29.e4 Bb2 30.Qe3 c4 31.e5 f5 32.e6 c3 33.Ne4 fxe4 34.Qxe4 Re7 35.Qxg6+
Rg7 36.Qf6 Qe8 37.Re1 Qe7 38.Qd4 Qb7 39.Qe4 Qe7 40.Qd4 Qb7 41.Qe4 Qc7 42.
e7 Qxe7 43.Qxe7 Rxe7 44.Rxe7 c2 45.Rc7 c1=Q 46.Rxc1 Bxc1 47.Bxh5 Nb7 48.
Be2 Nc5 49.Kf3 a5 50.g4 Nd7 51.g5 Nf6 52.gxf6 Kf7 53.a4 Kxf6 54.Bd3 Kg7 
55.h5 Kh6 56.Bg6 Kg7 57.Ke4 Bd2 58.f5 Kf6 59.Kd3 Bg5 60.Kc4 Ke5 61.Kb5 Bd2
62.Kc6 Bf4 63.Kd7 Bg5 64.Bf7 Bf4 65.Be6 Kf6 66.h6 Bxh6 67.Kxd6 Bf8+ 68.Kc6
Ke5 69.Bc8 Be7 70.f6 Bxf6 71.d6 Bd8 72.Bh3 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Baljon, Christofoor"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2220"]
[BlackElo "2405"]
[EventDate "1978.04.17"]
[PlyCount "90"]
[ECO "C02"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 c4 7.Nbd2 Na5 8.Rb1 Bd7 9.
b3 cxb3 10.c4 Ne7 11.c5 Qc7 12.Bd3 Ba4 13.Bb2 Nec6 14.Qe2 Be7 15.O-O Rb8 
16.Rfe1 b5 17.Ra1 Nc4 18.Nb1 O-O 19.Nc3 Qa5 20.Nxa4 Qxa4 21.Bc3 Rbe8 22.h4
f5 23.exf6 Bxf6 24.Ng5 Bxg5 25.hxg5 g6 26.g3 b2 27.Rad1 Qxa3 28.Qc2 Kg7 
29.Bxc4 bxc4 30.Re3 Qb3 31.Qxb3 cxb3 32.Bxb2 Kf7 33.Rxb3 Rb8 34.Rdd3 Ke7 
35.Kf1 Kd7 36.Ke2 Kc7 37.Rxb8 Rxb8 38.Bc3 Kd7 39.Rd1 Rb3 40.Kd2 Ke8 41.Re1
Kf7 42.Rh1 Kg8 43.Re1 Kf7 44.Rh1 Kg8 45.Re1 Kf7 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Ligterink, Gert"]
[Black "Bohm, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2410"]
[EventDate "1978.04.17"]
[PlyCount "48"]
[ECO "B18"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 e6 7.Bd3 Bxd3 8.Qxd3
Qc7 9.O-O Nd7 10.c4 Ngf6 11.Ne4 Be7 12.Bg5 h6 13.Bh4 Nxe4 14.Bxe7 Kxe7 15.
Qxe4 Nf6 16.Qe3 Rhd8 17.Ne5 Qd6 18.Rad1 c5 19.d5 Kf8 20.dxe6 Qxd1 21.e7+ 
Kg8 22.exd8=Q+ Rxd8 23.Qxc5 Qe2 24.Qc7 Rd1 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Ree, Hans"]
[Black "Kuijpers, Franciscus"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2415"]
[EventDate "1978.04.17"]
[PlyCount "143"]
[ECO "D37"]

1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5 8.Qc2 
Nc6 9.a3 Qa5 10.Rd1 Be7 11.Nd2 e5 12.Bg5 d4 13.Nb3 Qd8 14.Be2 Ng4 15.Bxe7 
Qxe7 16.exd4 Qh4 17.g3 Qh3 18.d5 Nd4 19.Nxd4 exd4 20.Rxd4 Re8 21.Re4 Bd7 
22.Bf1 Qh5 23.h3 f5 24.Re2 Ne5 25.f4 Nxc4 26.Kf2 Nd6 27.Bg2 Rac8 28.Rhe1 
Ne4+ 29.Bxe4 fxe4 30.Rxe4 Qxh3 31.Rxe8+ Bxe8 32.Qe4 Qh2+ 33.Qg2 Qh6 34.Re6
Qh5 35.Re5 Qg6 36.Kg1 Bf7 37.Qf2 a6 38.Kg2 h6 39.Qd4 Qd6 40.Kf2 b5 41.Ne4 
Qd7 42.Nc3 Qd6 43.Qa7 Rc7 44.Qb8+ Kh7 45.Kg2 g5 46.Rf5 Kg6 47.Rf6+ Qxf6 
48.Qxc7 gxf4 49.gxf4 Kf5 50.Kf3 Bh5+ 51.Ke3 Kg4 52.Qe5 Qb6+ 53.Ke4 b4 54.
Nd1 bxa3 55.Ne3+ Kh4 56.Qe7+ Kg3 57.Nf5+ Kg2 58.Qxa3 Bg6 59.Qc3 Qf2 60.Ke5
h5 61.Ne3+ Kh2 62.d6 Be8 63.Qc2 Qxc2 64.Nxc2 h4 65.f5 h3 66.Ne3 Kg3 67.f6 
Kf3 68.Nf1 Kg2 69.d7 Bxd7 70.f7 Kxf1 71.f8=Q+ Ke2 72.Qf4 1-0

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Scheeren, Peter"]
[Black "Hofland, Leonard"]
[Result "0-1"]
[EventDate "1978.04.17"]
[PlyCount "110"]
[ECO "E99"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 
9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 f4 13.c5 g5 14.cxd6 cxd6 15.Nf2 Ng6 
16.a4 h5 17.h3 Rf7 18.Nb5 Bf8 19.Qc2 a6 20.Na3 Rg7 21.Nc4 b6 22.a5 b5 23.
Nb6 Rc7 24.Qb3 Raa7 25.Rfc1 Nd7 26.Nd3 Rxc1+ 27.Rxc1 Nxb6 28.axb6 Qxb6+ 
29.Kf1 Bd7 30.Nb4 g4 31.hxg4 hxg4 32.Nc6 g3 33.Be1 Bxc6 34.dxc6+ Kh8 35.c7
Rxc7 36.Rxc7 Qxc7 37.Bd1 Qh7 38.Ke2 Nh4 39.Qe6 Nxg2 40.Ba5 Ne3 41.Bd8 Qh6 
42.Bf6+ Bg7 43.Bb3 d5 44.Qe8+ Kh7 45.Bxg7 Kxg7 46.exd5 Qd6 47.Qh5 Qf6 48.
Bc2 g2 49.Qh7+ Kf8 50.Kf2 g1=Q+ 51.Kxg1 Qg5+ 52.Kf2 Qg2+ 53.Ke1 Qf1+ 54.
Kd2 Qf2+ 55.Kc3 Qxc2+ 0-1

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Sosonko, Gennadi"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2450"]
[EventDate "1978.04.17"]
[PlyCount "53"]
[ECO "E11"]

1.d4 Nf6 2.c4 e6 3.g3 Bb4+ 4.Bd2 Qe7 5.Nf3 Nc6 6.Nc3 O-O 7.Bg2 d6 8.d5 Nb8
9.dxe6 fxe6 10.O-O Nc6 11.Ne1 Kh8 12.Nc2 Bxc3 13.Bxc3 Bd7 14.b4 Rae8 15.b5
Nd8 16.Qd2 Qf7 17.Ne3 Qh5 18.Bf3 Qf7 19.Bxf6 gxf6 20.Qa5 Bc8 21.Qxa7 f5 
22.Qb8 Qd7 23.b6 cxb6 24.Rfd1 Nf7 25.Bh5 Rd8 26.Rab1 Ne5 27.Rxb6 1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Timman, Jan"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2490"]
[EventDate "1978.04.17"]
[PlyCount "42"]
[ECO "C65"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Qe2 Be7 5.c3 d6 6.d4 Bd7 7.Nbd2 exd4 8.cxd4 
O-O 9.a3 Bg4 10.Qe3 d5 11.e5 Nd7 12.h3 Be6 13.O-O Na5 14.Qe2 a6 15.Bd3 Nb6
16.b3 Qd7 17.Re1 Bf5 18.Rb1 Bxd3 19.Qxd3 Qe6 20.Nf1 Qg6 21.Qxg6 fxg6 
1/2-1/2

[Event "34th NED-ch"]
[Site "Leeuwarden NED"]
[Date "1978.05.03"]
[Round "13"]
[White "Van der Sterren, Paul"]
[Black "Van der Vliet, Fredrik"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2345"]
[EventDate "1978.04.17"]
[PlyCount "128"]
[ECO "B84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.f4 Be7 8.O-O O-O
9.Qe1 Qc7 10.Kh1 b5 11.Bf3 Bb7 12.e5 Ne8 13.Qg3 Nd7 14.f5 dxe5 15.fxe6 
fxe6 16.Nxe6 Qc4 17.Bg5 Rxf3 18.Rxf3 Qxe6 19.Bxe7 Qxe7 20.Rf2 Nef6 21.Re1 
b4 22.Nd1 Ne4 23.Qb3+ Kh8 24.Rf7 Qe8 25.Rf5 a5 26.Ne3 Nef6 27.Qc4 Qc8 28.
Qf7 Qe8 29.Qc4 Rc8 30.Qb5 Be4 31.Rf2 Rc5 32.Qa6 Qc8 33.Qe2 h6 34.Qd1 Bc6 
35.Ref1 Bb5 36.Re1 Qg8 37.Nf5 e4 38.Qd6 Qb8 39.Nxh6 Qxd6 40.Nf7+ Kg8 41.
Nxd6 Bc6 42.h3 Nb6 43.Kh2 Na4 44.b3 Nc3 45.Rf5 Rxf5 46.Nxf5 Kf7 47.g4 Bd7 
48.Ne3 Ke6 49.Kg3 Ke5 50.h4 Ncd5 51.Nxd5 Nxd5 52.a3 Nf6 53.axb4 axb4 54.g5
Nh5+ 55.Kf2 Kf4 56.Re3 g6 57.c3 Ng7 58.cxb4 Nf5 59.Rc3 e3+ 60.Ke1 Kf3 61.
h5 gxh5 62.g6 Be8 63.b5 Bxb5 64.Rc7 Ke4 1/2-1/2
