[Event "US Open-75"]
[Site "New York"]
[Date "1974.08.14"]
[Round "4"]
[White "Casten, Frederick"]
[Black "Allen, Edward J"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "56"]
[EventDate "1974.08.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 d5 4. e3 Bg7 5. Bd3 0-0 6. Nbd2 b6 7. Ne5 c5 8. c3 Ba6 9. h3 Bxd3 10. Nxd3 Nbd7 11. Qf3 Qc8 12. Ne5 Rd8 13. 0-0 Nxe5 14. Bxe5 Qe6 15. Bh2 Rac8 16. Qe2 cxd4 17. cxd4 Rc2 18. Qd3 Rdc8 19. Nf3 Ne4 20. Qa3 Qd7 21. Rad1 e6 22. Ne5 Qb7 23. Nd3 Bf8 24. Qa4 R8c4 25. Qe8 Rc8 26. Qa4 Nd2 27. Rfe1 b5 28. Qxc2 Rxc2 0-1

[Event "US Open-75"]
[Site "New York"]
[Date "1974.08.12"]
[Round "2"]
[White "Casten, Frederick"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "71"]
[EventDate "1974.08.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. f4 Nf6 2. Nf3 g6 3. e3 Bg7 4. d4 d6 5. Bd3 Nc6 6. c3 0-0 7. 0-0 e5 8. e4 exd4 9. cxd4 Bg4 10. Be3 Nxe4 11. Bxe4 Qe7 12. Nbd2 d5 13. Qb3 dxe4 14. Ne5 Nxe5 15. dxe5 b6 16. Nxe4 Rad8 17. Rac1 Rd7 18. Rfe1 Rfd8 19. Qa4 a5 20. a3 Be6 21. f5 Bxf5 22. Bg5 Qxe5 23. Nf6+ Qxf6 24. Bxf6 Bxf6 25. Rcd1 Bxb2 26. Rxd7 Rxd7 27. g4 Bd4+ 28. Kg2 Bxg4 29. Re4 b5 30. Qxb5 Bf5 31. Rxd4 Re7 32. Qxa5 Re2+ 33. Kg3 h5 34. Rd8+ Kh7 35. Qc3 h4+ 36. Kf3 1-0

