[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "4"]
[White "Engnath, Richard R"]
[Black "Carlson, A."]
[Result "1-0"]
[ECO "B42"]
[PlyCount "79"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 b5 6. 0-0 Bb7 7. Qe2 Nc6 8. Nxc6 Bxc6 9. Be3 Qc7 10. Nd2 Be7 11. c4 bxc4 12. Nxc4 Nf6 13. Rac1 0-0 14. f3 d5 15. Nb6 Rab8 16. exd5 Rxb6 17. dxc6 Rxc6 18. Rxc6 Qxc6 19. Bxa6 Nd5 20. Rc1 Qa4 21. Bf2 Bg5 22. b3 Nf4 23. bxa4 Nxe2+ 24. Bxe2 Bxc1 25. a5 Bf4 26. a6 Bb8 27. a4 Rc8 28. Bb6 Bc7 29. a5 Kf8 30. a7 Bb8 31. axb8Q Rxb8 32. Bb5 Ke7 33. a6 Rxb6 34. a7 Rxb5 35. a8Q h5 36. Qa7+ Kf6 37. Qd4+ e5 38. Qd6+ Kg5 39. f4+ exf4 40. h4+ 1-0

[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "9"]
[White "Richard, Robert"]
[Black "Carlson, A."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "19"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nc6 2. f4 e5 3. Nf3 Nf6 4. fxe5 Nxe4 5. d3 Nc5 6. d4 Na6 7. d5 Ncb8 8. d6 h6 9. Bc4 Nc6 10. Qd5 1-0

