[Event "URS-ch25 Quarterfinal"]
[Site "Minsk"]
[Date "1957.05.05"]
[Round "7"]
[White "Roizman, Abram Yakovlevich"]
[Black "Ostrauskas, A"]
[Result "1/2-1/2"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Ne4 4. Nxe4 dxe4 5. e3 g6 6. Bc4 c5 7. c3 Bg7 8. h4 h6 9. Bf4 Nc6 10. Qc2 cxd4 11. exd4 Bf5 12. Ne2 e3 13. Qc1 exf2+ 14. Kxf2 e5 15. dxe5 Nxe5 16. Qe3 Qe7 17. Bxe5 Qxe5 18. Qxe5+ Bxe5 19. Ng3 Bd7 20. Rhe1 f6 21. h5 gxh5 22. Nxh5 O-O-O 23. Rad1 Bg4 24. Be2 Rdg8 25. Bxg4+ Rxg4 26. Rd3 Rhg8 27. g3 R8g5 28. Rh1 f5 29. Re1 Re4 30. Rh1 Kc7 31. Kf3 Rg6 32. Rhd1 Reg4 33. Rd5 Bxg3 34. Rc5+ Kb6 35. Rxf5 Bc7 36. Nf6 Rg3+ 37. Ke4 Kc6 38. b4 b6 39. b5+ Kb7 40. c4 Rg7 41. Rd7 Rxd7 42. Nxd7 Rg4+ 43. Kd3 Rg7 44. Nf8 Re7 45. Rh5 Bf4 46. c5 bxc5 47. Rxc5 Kb6 48. Rd5 Re1 49. Nd7+ Kc7 50. Nc5 Rd1+ 51. Ke4 Rxd5 52. Kxd5 Kb6 53. Ne6 1/2-1/2