[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Lein, Anatoly"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2490"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O c5 8. Na4 cxd4 9. exd4 Be7 10. a3 d6 11. b4 Nbd7 12. Re1 a5 13. Bb2 axb4 14. axb4 b5 15. cxb5 Nb6 16. Nd2 Nfd5 17. Qb3 Nxa4 18. Rxa4 Qb6 19. Rea1 Rxa4 20. Rxa4 Nf4 21. Bf1 Bf6 22. g3 Bxd4 23. Bxd4 Qxd4 24. Qe3 Qd5 25. f3 Ng6 26. Bc4 Qe5 27. Qxe5 Nxe5 28. Be2 g5 29. Ra7 Rb8 30. Kf2 Bd5 31. Ne4 Bxe4 32. fxe4 Kf8 33. Ke3 Ke8 34. Kd2 h6 35. Kc3 Kd8 36. Kb3 Nd7 37. Ra6 Nb6 38. Bh5 f5 39. exf5 exf5 40. Bf3 Ke7 41. Bc6 f4 42. gxf4 gxf4 43. Kc3 d5 44. Kd4 f3 45. Ke3 Nc4+ 46. Kf2 Ne5 47. Bxd5 Nd3+ 48. Kxf3 Rxb5 49. Be4 Nxb4 50. Rxh6 Nd5 1/2-1/2