[Event "IBM-B"]
[Site "Amsterdam NED"]
[Date "1978.07.14"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Artur Yusupov"]
[Black "Gert Ligterink"]
[ECO "B07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "102"]

1.e4 d6 2.d4 Nf6 3.f3 g6 4.c4 c5 5.d5 Bg7 6.Nc3 O-O 7.Bg5 e6
8.Qd2 exd5 9.Nxd5 Be6 10.Ne2 Bxd5 11.cxd5 Nbd7 12.Nc3 a6 13.a4
Qc7 14.Be2 c4 15.O-O b5 16.axb5 axb5 17.Be3 Qb7 18.Rfb1 Rfc8
19.b4 Ne8 20.Bd4 Nc7 21.f4 Rxa1 22.Rxa1 Ra8 23.Rxa8+ Qxa8
24.Bxg7 Kxg7 25.Qd4+ f6 26.Bg4 Qa1+ 27.Kf2 Qb2+ 28.Kg3 Nb6
29.Bf3 Na4 30.Qa7 Nxc3 31.Qxc7+ Kg8 32.Qd8+ Kg7 33.Qe7+ Kg8
34.Qe6+ Kg7 35.Qe7+ Kg8 36.e5 fxe5 37.Qe6+ Kg7 38.Qe7+ Kg8
39.Qe6+ Kg7 40.fxe5 Ne2+ 41.Bxe2 Qxe2 42.Qf6+ Kg8 43.Qd8+ Kg7
44.Qf6+ Kg8 45.exd6 Qe3+ 46.Kh4 Qe4+ 47.Kh3 Qxd5 48.Qd8+ Kg7
49.Qe7+ Qf7 50.Qc7 Kf6 51.d7 Qe6+ 1/2-1/2