[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Levy, Louis"]
[Black "Tschetter, A."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "57"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. 0-0 Qb6 6. a4 a6 7. Bxc6 bxc6 8. Nc3 a5 9. d3 e6 10. e5 Ne7 11. Ne4 0-0 12. Be3 Rb8 13. Bxc5 Qd8 14. b3 f6 15. exf6 Bxf6 16. Nxf6+ Rxf6 17. Bd6 Ra8 18. Qe1 Nd5 19. Qh4 Ba6 20. Ng5 h5 21. Rae1 Qb6+ 22. Kh1 Ne3 23. Ne4 Rf5 24. Qg3 Nxf1 25. Qxg6+ Kh8 26. Nf6 Rxf6 27. Qxf6+ Kh7 28. Qf7+ Kh6 29. Re5 1-0

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Tschetter, A."]
[Black "Haskins, Marcos"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "35"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 Nc6 5. Nf3 cxd4 6. Bd3 Bb4+ 7. Nbd2 g6 8. h4 Nh6 9. Qf4 Nf5 10. g4 Nfe7 11. Qf6 0-0 12. h5 h6 13. a3 Ba5 14. b4 Bc7 15. Nf1 Kh7 16. hxg6+ Nxg6 17. Rxh6+ Kg8 18. Rxg6+ 1-0

