[Event "USA-ch"]
[Site "Mentor"]
[Date "1977.10.01"]
[Round "7"]
[White "Lein, Anatoly"]
[Black "Grefe, John Alan"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2425"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Rd1 Bf6 11. Qe3 d5 12. Bd2 Nc6 13. Bc3 Ne7 14. cxd5 Qxd5 15. Ne1 Bxg2 16. Nxg2 Rfd8 17. Nf4 Qf5 18. Qf3 Bg5 19. e4 Qf6 20. Kg2 Bxf4 21. Qxf4 Qxf4 22. gxf4 a5 23. a4 f5 24. f3 Rd7 25. Kg3 Rad8 26. Rd2 Kf7 27. Kf2 Ng8 28. Ke3 Nf6 29. Rg1 g6 30. h3 Ng8 31. Rd3 Ne7 32. Rgd1 Rd6 33. Be1 R8d7 34. h4 Rc6 35. Rc3 Rcd6 36. Rcd3 Ke8 37. Bc3 Rc6 38. Rh1 Kd8 39. h5 Kc8 40. hxg6 hxg6 41. Rh8+ Kb7 42. Rf8 Rcd6 43. Rd2 Rc6 44. Rf6 Rcd6 45. Rh2 Nc6 46. Rxg6 Nxd4 47. Rhh6 Nb3 48. Rxe6 Rd3+ 49. Kf2 Nd4 50. Bxd4 R7xd4 51. exf5 Rxf4 52. Re3 Rd2+ 53. Kg3 Rxf5 54. b3 Rf7 55. Rh4 Kc6 56. Rc4+ Kd5 57. f4 c5 58. Re5+ Kd6 59. Rce4 Rf6 60. f5 Rd3+ 61. Kf4 Rxb3 62. Re6+ Rxe6 63. Rxe6+ Kd7 64. Ke5 1/2-1/2