[Event "URS-ch25 Semifinal"]
[Site "Sverdlovsk"]
[Date "1957.11.25"]
[Round "10"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Prokhorovich, Taras E"]
[Result "1-0"]
1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e4 e5 5. Nf3 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6 8. f3 b5 9. a4 b4 10. Nd1 Ba6 11. Be3 Nfd7 12. Rc1 c5 13. Nb5 Bxb5 14. axb5 Nb6 15. Bf4 N8d7 16. Bxc4 Nxc4 17. Rxc4 O-O-O 18. Ne3 Kb7 19. Ke2 g6 20. b3 Bg7 21. Nd5 Rhe8 22. Rd1 Rc8 23. Nxb4 Nb6 24. Nc6 Nxc4 25. Rd7+ Kb6 26. bxc4 a6 27. Ne7 axb5 28. Nxc8+ Rxc8 29. Rxf7 Bd4 30. cxb5 Kxb5 31. Be3 Bxe3 32. Kxe3 c4 33. Kd2 Ra8 34. Rxh7 Ra2+ 35. Kc3 Ra3+ 36. Kb2 Re3 37. Rg7 Kb4 38. Rb7+ Kc5 39. h4 Re2+ 40. Kc3 Rxg2 41. Rc7+ Kd6 42. Rg7 Ke5 43. h5 Rg3 44. Rf7 gxh5 45. Kxc4 h4 46. Kd3 h3 47. Ke3 h2 48. Rh7 Rg2 49. Rh6 1-0