[Event "USA-ch"]
[Site "Greenville"]
[Date "1980.06.28"]
[Round "13"]
[White "Shamkovich, Leonid Alexandrovic"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2485"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O h6 9. Be3 Nxd4 10. Bxd4 b5 11. f3 Be7 12. Kb1 O-O 13. h4 b4 14. Na4 e5 15. Be3 Rb8 16. Qf2 Bb7 17. Bc4 Bc6 18. b3 Bb5 19. Nb6 Bxc4 20. Nxc4 d5 21. Qg3 Kh8 22. Qxe5 Rb5 23. Qg3 Qc8 24. Nd6 Bxd6 25. Qxd6 dxe4 26. Bxh6 Re8 27. Bg5 Re6 28. Qd8+ Qxd8 29. Rxd8+ Kh7 30. Rhd1 Rf5 31. R8d4 a5 32. Bxf6 exf3 33. gxf3 Rexf6 34. Rd5 Kh6 35. R1d4 Kh5 36. a3 Rxd5 37. Rxd5+ Kxh4 38. Rxa5 bxa3 39. Ra4+ Kh3 40. b4 Rf4 41. Rxa3 Rxb4+ 1/2-1/2