[Event "USA-ch"]
[Site "New York"]
[Date "1972.??.??"]
[Round "11"]
[White "Byrne, Robert Eugene"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Qc7 8. g4 b5 9. g5 Nfd7 10. a3 Nb6 11. f4 N8d7 12. O-O Bb7 13. f5 e5 14. Nb3 Na4 15. Nd5 Bxd5 16. Qxd5 Ndb6 17. Bxb6 Nxb6 18. Qd2 Rc8 19. c3 Nc4 20. Qc1 d5 21. exd5 Bc5+ 22. Nxc5 Qxc5+ 23. Rf2 Qxd5 24. Bf3 Qc5 25. a4 O-O 26. axb5 axb5 27. b4 Qb6 28. Qe1 Rfd8 29. Kh1 Rd3 30. g6 fxg6 31. fxg6 Rxf3 32. Rxf3 Qc6 33. gxh7+ Kh8 34. Qe2 Nd2 35. Rf1 Nxf1 36. Qxf1 Rf8 37. Kg2 Qg6+ 38. Kh1 Qe4 39. Kg2 Rd8 40. Kg1 Qg4+ 41. Rg3 Qh5 42. Rf3 Qg6+ 43. Rg3 Qc2 44. Re3 e4 45. Re1 Qxc3 46. Rxe4 Qc2 47. Re1 Qd2 48. Re4 Qc2 49. Re1 Qd2 50. Re4 Qg5+ 51. Kh1 Rc8 52. Re1 Qd2 53. Rb1 Qc2 54. Re1 Qc3 55. Rb1 Re8 56. Qf7 Qc6+ 57. Kg1 Kxh7 58. Qh5+ Kg8 59. Rd1 Qb6+ 60. Kh1 Re6 61. Qf3 Qc7 62. Rf1 Qc4 63. Qf7+ Kh7 64. Qh5+ Rh6 65. Qf5+ Rg6 66. Rf4 Qc1+ 67. Rf1 Qc6+ 68. Rf3 Qc1+ 69. Rf1 Qc6+ 70. Rf3 Qa8 71. Qh5+ Rh6 72. Qf5+ Rg6 73. Qh5+ Kg8 74. Qxg6 Qxf3+ 75. Kg1 Qd1+ 76. Kf2 Qd2+ 77. Kg3 Qc3+ 78. Kg2 1/2-1/2