[Event "USA-ch"]
[Site "Pasadena"]
[Date "1978.??.??"]
[Round "15"]
[White "Byrne, Robert Eugene"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2505"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 g6 7. a4 Bg7 8. O-O O-O 9. Be3 Nc6 10. f4 Rb8 11. Nb3 Be6 12. f5 gxf5 13. exf5 Bxb3 14. cxb3 d5 15. Bf4 d4 16. Na2 Nd5 17. Bd3 Nxf4 18. Rxf4 Bf6 19. Qh5 Ne5 20. Rd1 Kh8 21. Nc1 Rg8 22. Be4 Qc7 23. Rdf1 Rg5 24. Qe2 Rbg8 25. Nd3 Ng4 26. Rc1 Qb8 27. Kh1 Qf8 28. Bxb7 Qh6 29. g3 Ne3 30. Rh4 Qg7 31. Be4 Rxg3 32. hxg3 Bxh4 33. gxh4 Qh6 34. Qh2 Ng4 35. Qg3 Nf6 36. Qe1 Nh5 37. Bg2 Qg7 38. Rc2 f6 39. Bh3 Qf7 40. Qe6 Ng3+ 41. Kh2 Qh5 42. Rg2 Nf1+ 43. Kg1 Ng3 44. Qxe7 Qd1+ 45. Ne1 d3 46. Qxf6+ Rg7 47. Qd8+ Rg8 48. Qd4+ Rg7 49. Qd8+ Rg8 50. Qd4+ 1/2-1/2