[Event "URS-ch23 Semifinal"]
[Site "Riga"]
[Date "1955.12.02"]
[Round "14(2)"]
[White "Lebedev, Boris"]
[Black "Borisenko, Georgy Konstantinov"]
[Result "0-1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nc6 7. O-O Bf5 8. d5 Na5 9. Nd4 Bd7 10. b3 c5 11. Nc2 a6 12. Rb1 b5 13. cxb5 axb5 14. b4 cxb4 15. Rxb4 Rb8 16. Nd4 Qc7 17. Qd3 Qc5 18. a3 Rfc8 19. Bd2 Nc4 20. Nb3 Qa7 21. Nb1 Nxd2 22. N3xd2 Ng4 23. h3 Ne5 24. Qb3 Nc4 25. Qa2 Nxd2 26. Qxd2 Qc5 27. Kh2 Ra8 28. Be4 Ra4 29. Rxa4 bxa4 30. Kg2 Bb5 31. Bf3 Bd7 32. Be4 Bf6 33. Rd1 Kg7 34. g4 h6 35. Qd3 Bb5 36. Qf3 Rb8 37. Nd2 Bb2 38. Rb1 Bc1 39. Nf1 Rc8 40. Rb4 Bd7 41. Qd3 Qc3 42. Qxc3+ Rxc3 43. Rb7 Be8 44. Rxe7 Bb5 45. Ra7 Rxa3 46. Bd3 Bxd3 47. exd3 Rxd3 48. Rxa4 Rxd5 49. Rc4 Bg5 50. f4 Bf6 51. Re4 Ra5 52. Re3 Ra2+ 53. Kf3 Bh4 54. Ke4 Ra4+ 55. Kf3 Ra1 56. Nd2 Rg1 57. Ke4 d5+ 58. Kd3 Rh1 59. Ke2 Rh2+ 60. Kd3 Bd8 61. Nb3 Rf2 62. f5 Bg5 63. Re2 Rf3+ 64. Kc2 Rxh3 65. fxg6 fxg6 66. Nd4 Rg3 67. Re5 Rxg4 68. Rxd5 Re4 69. Nf3 Kf6 70. Nxg5 hxg5 71. Kd3 Re5 72. Rd4 Kf5 73. Ra4 0-1