[Event "USA-ch"]
[Site "Chicago"]
[Date "1974.??.??"]
[Round "2"]
[White "Benko, Pal C"]
[Black "Commons, Kim S"]
[Result "1-0"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Qc2 c6 8. Rd1 b6 9. b3 Ba6 10. Nbd2 b5 11. c5 b4 12. e3 Qc7 13. a3 bxa3 14. Bxa3 Bb5 15. Bb4 Rfe8 16. h3 e5 17. dxe5 Nxe5 18. Nxe5 Qxe5 19. Bc3 Qc7 20. b4 Nd7 21. Qb2 Bf6 22. Bxf6 Nxf6 23. Nb3 a6 24. Nd4 Qe5 25. Ra2 Bc4 26. Ra3 h5 27. Qc2 Bb5 28. Rda1 Rac8 29. Nf5 Red8 30. h4 Rc7 31. Nd4 g6 32. Bf1 Ne4 33. Bxb5 axb5 34. Ra8 Qe8 35. Rxd8 Qxd8 36. Ra6 Qc8 37. Qa2 Kh7 38. Ra8 Qh3 39. Nf3 Qg4 40. Kg2 Nf6 41. Qb2 Kg7 42. Qe5 Qd7 43. Nd4 Rc8 44. Rxc8 Qxc8 45. Kg1 Qa8 46. g4 hxg4 47. h5 Qd8 48. hxg6 Kxg6 49. Nxc6 Qh8 50. Ne7+ Kh7 51. Qf5+ Kg7 52. Qg5+ Kf8 53. Nf5 g3 54. fxg3 Ke8 55. Ng7+ Kd7 56. Qxf6 Qh3 57. Qxf7+ Kc6 58. Qe6+ Qxe6 59. Nxe6 Kd7 60. Nd4 1-0