[Event "72nd US Open"] [Site "Ventura, CA USA"] [Date "1971.08.11"] [EventDate "?"] [Round "4"] [Result "0-1"] [White "William James Lombardy"] [Black "Walter Cunningham"] [ECO "D30"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "52"] 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Qc2 Be7 5. Bf4 O-O 6. Nc3 c5 7. dxc5 Bxc5 8. e3 Nc6 9. Rd1 Qa5 10. Nd2 d4 11. Nb3 Qb6 12. exd4 Bxd4 13. c5 Qb4 14. Bd6 Re8 15. Bd3 Bxc3+ 16. bxc3 Qh4 17. Nd4 e5 18. Nf5 e4 19. Be2 Bxf5 20. O-O Qg5 21. Qb3 Bc8 22. Bc7 h5 23. Kh1 e3 24. fxe3 Be6 25. c4 Bg4 26. Rde1 Ne4 0-1