[Event "Marshall CC"]
[Site "New York"]
[Date "1977.??.??"]
[Round "?"]
[White "Lein, Anatoly"]
[Black "Diesen, Mark C"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2360"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 c5 7. O-O a6 8. Qc2 b6 9. e4 Bb7 10. d3 Be7 11. Nc3 Rc8 12. h3 O-O 13. Bf4 b5 14. Rfe1 Nh5 15. Be3 e5 16. a4 Bc6 17. axb5 axb5 18. Qb3 Nhf6 19. Nd2 Bd6 20. Ra6 Nb8 21. Ra7 Ne8 22. Nxb5 Bxb5 23. Qxb5 Nc6 24. Raa1 Nb4 25. Rec1 Be7 26. Bf1 Rb8 27. Qa5 Qd7 28. Nc4 Nc6 29. Qa4 Rb4 30. Qc2 Nc7 31. Qe2 Ne6 32. Qg4 Rfb8 33. h4 g6 34. h5 Bf6 35. Ra6 R4b7 36. Rca1 Bg7 37. Ra8 Nb4 38. R1a7 Nc6 39. Rxb8+ Nxb8 40. Ra8 Qc7 41. Qd1 Nd4 42. Bxd4 exd4 43. Qa4 Kf8 44. Qa5 Qe7 45. hxg6 hxg6 46. Bh3 Be5 47. f4 Bc7 48. Qa6 Bd8 49. Qa4 Kg7 50. e5 Rb4 51. Qa1 Bc7 52. Qd1 f6 53. exf6+ Kxf6 54. Qf3 Kg7 55. Ra7 Kh6 56. Bf1 Qd8 57. Ne5 Kg7 58. Nc6 Nxc6 59. Qxc6 1-0