[Event "URS-ch41 Semifinal"]
[Site "Lvov"]
[Date "1973.06.??"]
[Round "?"]
[White "Sveshnikov, Evgeny"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. Be3 Nf6 7. Bc4 Be7 8. Bb3 O-O 9. Qe2 Bd7 10. O-O-O Nxd4 11. Bxd4 Qa5 12. Rd3 Bc6 13. f4 e5 14. fxe5 dxe5 15. Bf2 Rad8 16. Rhd1 a6 17. Kb1 Rxd3 18. cxd3 Rd8 19. g4 Ne8 20. Qf3 Nd6 21. Be1 Qc7 22. Bg3 Bf6 23. h4 h6 24. g5 hxg5 25. hxg5 Bxg5 26. Bxe5 Qe7 27. Qg3 Bf6 28. Bf4 Nb5 29. Nxb5 Bxb5 30. e5 Bh4 31. Qe3 Kf8 32. d4 g5 33. Bh2 f5 34. d5 Qb4 35. Bc2 f4 36. Qf3 Qe7 37. Bxf4 Qf7 38. Rd4 Kg8 39. Qg2 Rf8 40. Bc1 Qg7 41. d6 Bc6 42. Bb3+ Kh8 43. Qg4 Bf3 44. Qxh4+ gxh4 45. Rxh4+ Qh7+ 46. Rxh7+ Kxh7 47. e6 Kg7 48. Bg5 Be4+ 49. Kc1 Kg8 50. Be7 1-0