[Event "USA-ch/Zonal"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "4"]
[White "Byrne, Robert Eugene"]
[Black "Kudrin, Sergey"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2425"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Nb3 O-O 9. Bg5 a6 10. a4 Be6 11. f3 Na5 12. Nxa5 Qxa5 13. Qd2 Rfc8 14. Rab1 Bc4 15. Bd3 b5 16. axb5 axb5 17. Rfd1 b4 18. Ne2 Qb6+ 19. Be3 Qb8 20. c3 Bxd3 21. Qxd3 Nd7 22. Nf4 Ne5 23. Qe2 e6 24. Bd4 Nc4 25. Nd3 Bxd4+ 26. cxd4 Qb6 27. Qf2 b3 28. Rbc1 d5 29. exd5 exd5 30. Rc3 Ra2 31. Ne5 Qb4 32. Nxc4 Rxc4 33. Re3 Ra8 34. Qe1 Qxe1+ 35. Rdxe1 Rb8 36. Re8+ Rxe8 37. Rxe8+ Kg7 38. Re3 Rc1+ 39. Kf2 Rc2+ 40. Re2 Rc1 41. Re3 Rc2+ 1/2-1/2