[Event "USA-ch"]
[Site "New York"]
[Date "1972.??.??"]
[Round "7"]
[White "Byrne, Robert Eugene"]
[Black "Popovych, Orest"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Be7 9. f3 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 Nh5 13. Nd5 Bxd5 14. exd5 f5 15. gxf6 Bxf6 16. Na5 Qc7 17. Nc6 Nb8 18. Bh3 a5 19. Bf5 Kh8 20. Rhg1 Na6 21. Qxa5 Qxa5 22. Nxa5 Bd8 23. Bg4 Nf4 24. Bxf4 Rxf4 25. Nc6 Bf6 26. a3 g6 27. b4 Nc7 28. Rd3 h5 29. Bd7 Kh7 30. Kd1 Bh4 31. Rg2 Raf8 32. Ke2 e4 33. fxe4 Rxe4+ 34. Kd2 Rf1 35. Rd4 Rxd4+ 36. Nxd4 Nxd5 37. Bxb5 Ra1 38. Nf3 Bf6 39. Ng5+ Kh6 40. Ne4 Bh4 41. Re2 Rxa3 42. Bc4 Nxb4 43. Nxd6 Bg5+ 44. Ke1 Bf4 45. Nf7+ Kg7 46. Nd8 Ra1+ 47. Kf2 Bxh2 48. Re7+ Kf6 49. Re6+ Kf5 50. Kg2 Bc7 51. Nc6 1/2-1/2