[Event "October Revolution 60years"]
[Site "Leningrad"]
[Date "1977.07.09"]
[Round "11"]
[White "Mariotti, Sergio"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2690"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bf4 d6 7. Bg3 Nf6 8. Be2 Be7 9.
Nxc6 bxc6 10. e5 Nd5 11. exd6 Bxd6 12. Ne4 Bxg3 13. hxg3 O-O 14. c4 f5 15. Nd2 Nf6 16. Nf3
Qb6 17. Qd4 c5 18. Qc3 Bb7 19. O-O Rae8 20. Rfe1 e5 21. Rad1 a5 22. b3 Qc7 23. Nd2 Rd8 24.
Nf3 Bxf3 25. Bxf3 Rd4 26. Qe3 e4 27. Rxd4 cxd4 28. Qxd4 Rd8 29. Qc3 exf3 30. gxf3 h5 31.
Re5 Rd1+ 32. Kg2 Qd7 33. Rxa5 h4 34. gxh4 Rd4 35. Rd5 Rxd5 36. cxd5 Nxd5 37. Qe5 Kf7 38.
a4 Nb4 39. Qc5 Nd3 40. Qc4+ Kg6 41. Kf1 Qd6 42. Ke2 Nf4+ 43. Ke3 Ng2+ 44. Ke2 Qe5+ 45. Kd3
Ne1+ 46. Kd2 Nxf3+ 47. Kc2 Kh5 48. b4 Qe1 49. Qc5 Qd2+ 50. Kb3 Qd3+ 51. Kb2 Nd2 52. Qc3
Qb1+ 53. Ka3 Qe1 54. Kb2 Qxf2 55. Qxg7 Ne4+ 56. Kb3 Qe3+ 57. Kb2 Qd2+ 58. Kb3 Qd5+ 59. Kb2
f4 60. Qh8+ Kg4 61. h5 Qd2+ 62. Kb3 Qd3+ 63. Kb2 f3 64. h6 Ng5 65. Qc8+ Kh5 66. Qe8+ Kxh6
67. Qf8+ Kh5 68. Qe8+ Kg4 69. Qc8+ Kg3 70. Qc7+ Kg2 71. Qc6 Qe4 72. Qc5 Ne6 0-1