[Event "US Senior Open"] [Site "Las Vegas (NV)"] [Round "2.9"] [White "Buckendorf Glen (ID)"] [Black "Mayntz Fred"] [Result "0-1"] [ECO "B22"] [Opening "Sicilian: Alapin, 2...Nf6 3.e5 Nd5"] 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 d6 7. Be2 Nc6 8. O-O dxe5 9. dxe5 Be7 10. Re1 O-O 11. Bd2 Qb6 12. Nc3 Rd8 13. Qc1 Qc7 14. Nxd5 exd5 15. Bf4 Be6 16. a3 Rac8 17. Qd2 Qb6 18. Rec1 Na5 19. Nd4 Nc4 20. Bxc4 dxc4 21. Be3 Bc5 22. Rd1 Bg4 23. f3 Bf5 24. Qf2 Bd3 25. Nf5 Bxe3 26. Nxe3 Re8 27. Rac1 Rxe5 28. Rxd3 Rce8 29. Nxc4 Re1+ 30. Rxe1 Rxe1# 0-1