[Event "World-ch26 Spassky-Petrosian +6-4=13"]
[Site "Moscow"]
[Date "1969.05.12"]
[Round "11"]
[White "Spassky, Boris Vasilievich"]
[Black "Petrosian, Tigran V"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. e3 Nbd7 7. cxd5 exd5 8. Be2 Bd6 9. b4
O-O 10. O-O a6 11. Qb3 Qe7 12. Rb1 Ne4 13. a4 Ndf6 14. b5 Nxc3 15. Qxc3 Ne4 16. Qc2 Rfc8
17. Bb2 c6 18. bxc6 Bxc6 19. Qb3 Qd7 20. Ra1 b5 21. a5 Bb7 22. Ne5 Qd8 23. Rfd1 Qh4 24. g3
Qe7 25. f3 Ng5 26. h4 Ne6 27. f4 f6 28. Nf3 Nd8 29. Kf2 Nf7 30. Nd2 Rc4 31. Qd3 Re8 32.
Bf3 Bb4 33. Ba3 Bxa3 34. Rxa3 Nd6 35. Re1 f5 36. Raa1 Ne4+ 37. Bxe4 fxe4 38. Qb1 Qd7 39.
Ra2 Rec8 40. Nxc4 dxc4 41. d5 Bxd5 42. Rd1 c3 43. Rc2 Qh3 44. Rg1 Qg4 45. Kg2 Qf3+ 46. Kh2
Qxe3 47. f5 Qc5 48. Rf1 b4 49. f6 b3 50. Rcf2 c2 51. Qc1 e3 52. f7+ Kf8 53. Rf5 b2 54.
Qxb2 c1=Q 55. Qxg7+ Kxg7 56. Rg5+ 0-1