[Event "USA-ch/Zonal"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "13"]
[White "Tarjan, James Edward"]
[Black "Shamkovich, Leonid Alexandrovic"]
[Result "0-1"]
[WhiteElo "2530"]
[BlackElo "2495"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. d4 g6 6. dxc5 Nxc3 7. Qxd8+ Kxd8 8. bxc3 Bg7 9. Nd4 Nc6 10. e3 Bd7 11. Rb1 Kc7 12. Nb5+ Kc8 13. Bc4 Bf5 14. Ra1 Ne5 15. Bb3 Nd3+ 16. Ke2 Nxc5 17. Rd1 Bd7 18. Nd4 e5 19. Nc2 Na4 20. Bd2 f5 21. f3 a5 22. Rab1 Ra6 23. Be1 Nc5 24. Bc4 Rc6 25. Bd5 Ra6 26. Bxb7+ Nxb7 27. Rxb7 Rd8 28. Rb2 Be6 29. Rdb1 Bc4+ 30. Kf2 Ra7 31. Na3 Bd3 32. Rc1 Bf8 33. Nb5 Rb7 34. c4 Ba3 35. Bc3 Bxb2 36. Bxb2 e4 37. Bc3 a4 38. Ba5 Rdd7 39. f4 Kb8 40. Bc3 Rb6 41. Be5+ Ka8 42. Nd4 Rb2+ 43. Kg3 Rdb7 44. c5 Rb1 45. Rxb1 Rxb1 46. c6 Rc1 47. a3 Bc4 48. Bd6 Bd5 49. Kh4 Bxc6 50. Kg5 Be8 51. Ne6 Kb7 52. Kh6 Rc3 53. Bc5 Kc6 54. Bb4 Rxe3 55. Kxh7 Rb3 56. Kg7 e3 57. Nd4+ Kd5 58. Nc2 Ke4 59. Kf8 Bb5 60. Kf7 e2 61. Ba5 Bd3 62. Ne1 Rxa3 63. Kxg6 Ra1 64. h4 Bb5 65. Kf7 a3 66. Nc2 Ra2 67. Ne1 Rb2 68. Bc3 Rb1 69. h5 a2 70. Nc2 0-1