[Event "Amsterdam Interzonal"]
[Site "Amsterdam"]
[Date "1964.??.??"]
[Round "13"]
[White "Larsen, Bent"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "B42"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Ba7 7.O-O Nc6 8.N1d2 Nf6
9.Nc4 d5 10.exd5 exd5 11.Qe2+ Be6 12.Ne5 Nxe5 13.Qxe5 O-O 14.Nd4 Qd7 15.Bh6 Bxd4
16.Qxd4 Bf5 17.Rae1 Rfe8 18.Bg5 Bxd3 19.cxd3 Rxe1 20.Rxe1 Re8 21.Rxe8+ Nxe8
22.h3 Nc7 23.Bd2 Ne6 24.Qb6 h6 25.Kh2 h5 26.g3 d4 27.Qb3 Qc6 28.Qd1 Qd5 29.a4 Qf5
30.Qe2 Nc5 31.g4 hxg4 32.hxg4 Qg6 33.Qe7 Ne6 34.Bc1 Qxg4 35.Qxb7 Qh5+ 36.Kg2 Qg6+
37.Kh2 Qh5+ 38.Kg2 Qg6+ 39.Kh2 Qxd3 40.Qc8+ Kh7 41.b4 Qe2 42.Kg3 Qd1 43.b5 axb5
44.a5 d3 45.a6 d2 46.Bxd2 Qxd2 47.a7 Qd6+ 48.Kg2 Nc7 49.Qh3+ Qh6 50.Qd7 Qf4
51.Qh3+ Kg6 52.Qd3+ f5 53.Qd7 b4 54.Qxc7 Qxc7 55.a8=Q Qb6 56.Qe8+ Kh7 57.Kf1 Qa6+
58.Ke1 Qa1+ 59.Ke2 Qb2+ 60.Kf3 Qc3+ 61.Kg2 Kh6 62.f4 Qc2+ 63.Kg3 Qe4 64.Qb8 Qe3+
65.Kh4 Qf2+ 66.Kh3 Qe3+ 67.Kh4 Qe1+ 68.Kh3 Kh7 69.Qb6 Qc3+ 70.Kh2 b3 71.Qe6 Qc2+
72.Kg3 b2 73.Qe8 Qe4  0-1

