[Event "US Open, Oklahoma City"] [Site "?"] [Date "1956.??.??"] [Round "?"] [White "Fischer, Robert J."] [Black "Popel, Stephen"] [Result "1/2-1/2"] [ECO "A04"] [PlyCount "76"] [EventDate "1956.??.??"] 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d6 6. e4 c5 7. Nbd2 Nc6 8. a4 a6 9. Nc4 Rb8 10. a5 Be6 11. Nfd2 d5 12. exd5 Bxd5 13. Nb3 Bxg2 14. Kxg2 Nd4 15. Nxd4 cxd4 16. Bf4 Rc8 17. Be5 Qd5+ 18. Qf3 Qxf3+ 19. Kxf3 Nd5 20. Bxg7 Kxg7 21. Rfe1 e6 22. Ra3 Rfd8 23. Rb3 Rc7 24. Ke2 Ne7 25. Kd2 Nc6 26. Rb6 Rd5 27. Ra1 Kf8 28. Ra3 Ke7 29. Rab3 Nd8 30. f4 g5 31. fxg5 Rxg5 32. Nd6 Rgc5 33. c4 dxc3+ 34. bxc3 Rxa5 35. Nxb7 Ra2+ 36. Ke3 Rxh2 37. Nxd8 Kxd8 38. Rxa6 Ke7 1/2-1/2