[Event "Riga"]
[Site "Riga"]
[Date "1959.??.??"]
[White "Spassky, Boris"]
[Black "Sliwa, Bogdan"]
[Result "1/2-1/2"]
[ECO "E30"]
[Opening "Nimzo-Indian Defense: Leningrad Variation"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 e5 7.Qc2 d6 8.e4 Bxc3+ 9.bxc3 g5 10.Bg3 Nh5 11.Nf3 Nd7 12.Nd2 Nf8 13.Be2 Nf4 14.Bxf4 exf4 15.e5 dxe5 16.Bd3 Nd7 17.O-O-O Qa5 18.Rde1 a6 19.h4 g4 20.Bf5 f6 21.Bxd7+ Kxd7 22.Rxe5 fxe5 23.Qf5+ Kc7 24.Qxe5+ Kb6 25.Qxh8 Qa3+ 26.Kd1 Ka7 27.Qh7 Qxc3 28.Re1 Qa1+ 29.Qb1 Qd4 30.Qe4 Qxf2 31.Rf1 Qxh4 32.Qxf4 Bd7 33.Qe3 Rc8 34.Rf8 Qh1+ 35.Kc2 Qxg2 36.Rxc8 Bf5+ 37.Kc1 Bxc8 38.Qxc5+ Kb8 39.Qd6+ Ka7 40.Qc5+ Kb8 1/2-1/2