[Event "URS-ch28 Semifinal"]
[Site "Vilnius"]
[Date "1960.08.25"]
[Round "4"]
[White "Flohr, Salo"]
[Black "Petersons, Andrejs"]
[Result "1/2-1/2"]
1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. e3 d6 6. d4 Nbd7 7. Be2 e5 8. dxe5 dxe5 9. O-O e4 10. Nd4 c6 11. Nd2 Re8 12. Qc2 Qa5 13. Rac1 Qg5 14. c5 Nf8 15. Kh1 Qh4 16. Nc4 Ng4 17. Bxg4 Bxg4 18. Ne2 Bxb2 19. Qxb2 Bxe2 20. Qxe2 Rad8 21. Nd6 Re5 22. f4 exf3 23. Rxf3 Rd7 24. Rcf1 f5 25. e4 Rxc5 26. exf5 Rxd6 27. fxg6 Nxg6 28. Qe8+ Kg7 29. Qf7+ Kh6 30. Rh3 Qxh3 31. gxh3 Rc2 32. Qxb7 Rdd2 33. Qc7 Rxa2 34. Qg3 a5 35. h4 Rxh2+ 36. Qxh2 Rxh2+ 37. Kxh2 Nxh4 38. Kh3 Kg5 39. Rg1+ Kh5 40. Rc1 Nf3 41. Rc5+ Kg6 42. Rxc6+ Kf5 43. Rc5+ Ke6 44. Rxa5 Kd6 45. b4 Kc6 46. Rf5 Nd4 47. Rf4 Nb3 48. Rf3 Nd4 49. Rf4 Nb3 50. Kg4 Kb5 51. Kf3 Nc1 52. Rf8 Kxb4 53. Rb8+ Kc3 54. Ke3 Nb3 55. Rc8+ Kb4 56. Ke4 Nc5+ 57. Kd5 Nb3 58. Rc4+ Kb5 59. Rf4 Na5 60. Rf2 Nc4 61. Rh2 Ne3+ 62. Kd4 Nf5+ 63. Ke5 Ne3 1/2-1/2