[Event "URS-ch45 Semifinal"]
[Site "Beltsy"]
[Date "1977.??.??"]
[Round "4"]
[White "Vaisser, Anatoli"]
[Black "Ivanov, Igor Vasilievich"]
[Result "1-0"]
[BlackElo "2420"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Bd7 9. Qe2 cxd4 10. exd4 Bc6 11. Rd1 Nbd7 12. Ne5 Nb6 13. Nxc6 bxc6 14. Bb3 Nbd5 15. Ne4 Nxe4 16. Qxe4 Qb6 17. Rd3 Rad8 18. Bg5 Be7 19. Rh3 h6 20. Bc2 f5 21. Qxe6+ Rf7 22. Bxe7 Qxb2 23. Rf1 Nf4 24. Qc4 Nxh3+ 25. gxh3 Rd7 26. Rb1 1-0