[Event "URS-ch25 Quarterfinal"]
[Site "Minsk"]
[Date "1957.05.09"]
[Round "10"]
[White "Ostrauskas, A"]
[Black "Vistinietzki, Itzhak"]
[Result "1/2-1/2"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. b3 e6 5. Bb2 Be7 6. O-O O-O 7. d3 a5 8. a4 h6 9. Nbd2 Nbd7 10. h3 c6 11. Nd4 Bh7 12. e4 Qb6 13. Qe2 Bc5 14. N4f3 Rad8 15. e5 Ne8 16. Kh2 Nc7 17. Rae1 Na6 18. Ng1 Nb4 19. Nb1 Be7 20. f4 Nc5 21. Rd1 Rde8 22. Nf3 Nd7 23. g4 c5 24. Ne1 Nc6 25. Nd2 f6 26. exf6 Bxf6 27. Bxf6 Nxf6 28. Ndf3 Qc7 29. Ne5 Nxe5 30. fxe5 Nd7 31. Rxf8+ Nxf8 32. g5 hxg5 33. Nf3 Ng6 34. Qe3 d4 35. Qxg5 Rf8 36. Re1 Rf5 37. Qg3 b6 38. Ng5 Qe7 39. Nxh7 Kxh7 40. Be4 Rg5 41. Qf3 Kg8 42. Bxg6 Rxg6 43. Re4 Rg5 44. Re2 Qc7 45. Qa8+ Kh7 46. Qe4+ Rf5 47. Qh4+ Kg8 48. Qg3 Qf7 49. Rg2 Kh7 50. Re2 Qh5 51. Qg4 Qf7 52. Qh4+ Rh5 53. Qg4 g6 54. Qg3 Qf5 55. Re4 Qf1 56. Re1 Qf5 57. Re4 Kg7 58. Rg4 Rh8 59. Rg5 Qf7 60. Kg1 Rf8 61. Qg2 Kh7 62. Rg4 Qf5 63. Rh4+ Kg7 64. Rg4 1/2-1/2