[Event "URS-ch25 Semifinal"]
[Site "Sverdlovsk"]
[Date "1957.12.10"]
[Round "19"]
[White "Bagirov, Vladimir"]
[Black "Aronson, Lev Abramovich"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 Nc6 5. Bg2 Nf6 6. O-O Qc7 7. b3 Be7 8. Bb2 O-O 9. d4 cxd4 10. Nxd4 d6 11. Nce2 Bd7 12. c4 Rfd8 13. h3 Rac8 14. Rc1 Qb8 15. f4 Nxd4 16. Nxd4 b5 17. cxb5 Rxc1 18. Qxc1 axb5 19. a3 Qb6 20. Kh2 Rc8 21. Qd2 d5 22. e5 Ne4 23. Qd3 b4 24. a4 Nc3 25. Bc1 f5 26. exf6 Bxf6 27. Be3 Qd6 28. Nc2 Be8 29. Nd4 Rc7 30. h4 Bd7 31. Nc2 Bc8 32. Rf2 Ba6 33. Qd2 Rd7 34. Bd4 Ne4 35. Bxe4 dxe4 36. Be3 Bc3 37. Qxd6 Rxd6 38. Bc5 Rd3 39. Nxb4 Bxb4 40. Bxb4 Rxb3 41. Ba5 e3 42. Rc2 h5 43. g4 hxg4 44. Rc3 Rb2+ 45. Kg3 e2 46. Re3 Ra2 47. Kxg4 Rxa4 48. Bd2 Ra2 49. Bb4 Ra1 50. Kg3 Kf7 51. Re5 Rg1+ 52. Kh3 Rb1 53. Bd2 Rd1 54. Ba5 Bd3 55. Kg2 Ra1 56. Bc3 Rc1 57. Ba5 Rf1 58. Bd2 Bc4 59. Kg3 Rg1+ 60. Kf3 Rd1 61. Ba5 Ra1 62. Kf2 g6 63. Be1 1/2-1/2