[Event "World-ch21 Botvinnik-Symslov +7-5=11"]
[Site "Moscow"]
[Date "1958.03.13"]
[Round "4"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vassily V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qc5 c6 11. Rd1 N8d7 12. Qa5 e5 13. d5 cxd5 14. Nxd5 Nxd5 15. Qxd5 Be6 16. Qd2 Nf6 17. Qb4 a5 18. Qb5 Qe8 19. Nd2 Qxb5 20. Bxb5 Bxa2 21. Ke2 Be6 22. f3 Rfc8 23. Rc1 Ne8 24. Bd3 Nd6 25. Rxc8+ Rxc8 26. Ra1 Ra8 27. Bb6 a4 28. Nb1 Nc4 29. Bxc4 Bxc4+ 30. Ke1 Bf8 31. Na3 Bb3 32. Rc1 Ra6 33. Be3 Rc6 34. Rxc6 bxc6 35. Kd2 f5 36. Kc3 fxe4 37. fxe4 Kf7 38. Nc4 Ke6 39. Ba7 Ba2 40. Bb8 Bh6 41. Bc7 Bb1 42. Nd2 Bxd2+ 43. Kxd2 Bxe4 44. g3 Kd5 45. Kc3 Bg2 46. h4 Bf3 47. Bb8 c5 48. Bc7 Be4 49. Bb8 Bb1 50. Bc7 e4 51. Bf4 Bd3 52. Be3 c4 53. Bf4 Ke6 54. Kd2 Kf5 55. Bd6 Kg4 56. Ke3 Bb1 57. Be5 c3 58. Bxc3 Kxg3 59. Bf6 Kg4 60. Be7 Kf5 61. Bg5 Ke5 62. Bh6 Bc2 63. Bg5 Bb3 64. Bh6 Bd5 65. Bg5 Kf5 66. Bh6 Kg4 67. Bg5 Kg3 68. Bd8 Kg2 69. Be7 Kf1 70. Bb4 h6 71. Bf8 g5 72. h5 g4 73. Bxh6 g3 74. Bf4 g2 75. Bh2 Bf7 76. Kxe4 Bxh5 77. Kd3 g1=Q 78. Bxg1 Kxg1 79. Kc2 Bg6+ 80. Kc3 Bf7 81. Kc2 Ba2 82. b4 1/2-1/2