[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "11"]
[White "Lengyel, Levente"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E11"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 O-O 6.Bg2 Bxd2+ 7.Qxd2 d6 8.Nc3 e5
9.O-O Nc6 10.d5 Nb8 11.e4 a5 12.Qc2 Na6 13.a3 Ne8 14.Ne1 Nc5 15.Nd3 Nxd3
16.Qxd3 a4 17.Rae1 g6 18.f4 f6 19.f5 g5 20.Bf3 Bd7 21.Bd1 Ng7 22.Bc2 Ra6
23.Qd1 Qe8 24.Rf2 Ra5 25.h4 h6 26.hxg5 hxg5 27.Rh2 Kf7 28.Rh7 Rg8 29.Kg2 Ke7
30.Reh1 Kd8 31.R1h6 Qf8 32.g4 Rc5 33.Bxa4 Bc8 34.Bb5 Bd7 35.b4 Bxb5 36.bxc5 Ba6
37.c6 bxc6 38.Qa4 Bc8 39.Qxc6 Ne8 40.a4 Rg7 41.a5  1-0

