[Event "Midwest Masters op"]
[Site "Chicago"]
[Date "1986.??.??"]
[Round "3"]
[White "Blocker, Calvin"]
[Black "Zingheim, Scott"]
[Result "1-0"]
[WhiteElo "2380"]

1. Nf3 c5 2. c4 f5 3. Nc3 g6 4. g3 Bg7 5. Bg2 Nf6 6. O-O O-O 7. d3 d6 8. a3 Nc6 9. Rb1 a5 10. Ne1 Bd7 11. f4 Rb8 12. Nc2 Ne8 13. Bd2 Nd4 14. b4 axb4 15. axb4 Bc6 16. b5 Bxg2 17. Kxg2 b6 18. Ne1 Nf6 19. e3 Ne6 20. Qf3 Qd7 21. Nc2 Qb7 22. Qxb7 Rxb7 23. Ra1 Nc7 24. e4 e6 25. Ra3 Ra8 26. Rxa8+ Nxa8 27. Ra1 Nc7 28. Ra3 Kf7 29. h3 d5 30. cxd5 exd5 31. e5 d4 32. Nd1 Nfd5 33. Rb3 Ra7 34. Na3 Bf8 35. Nb2 Ke6 36. Nbc4 Kd7 37. Kf3 Be7 38. Rb1 Ke6 39. g4 Ra8 40. Rg1 Rf8 41. Rh1 fxg4+ 42. hxg4 Nxf4 43. Bxf4 Nd5 44. Rxh7 Rxf4+ 45. Kg3 Rf7 46. Rh6 Rg7 47. Rh8 Bg5 48. Re8+ Kd7 49. Rb8 Kc7 50. Ra8 Re7 51. Nc2 Bf4+ 52. Kf3 Kb7 53. Rd8 Nc7 54. Nd6+ 1-0