[Event "Sioux Falls op"]
[Site "Sioux Falls"]
[Date "1998.??.??"]
[Round "?"]
[White "Ahlers, Paul"]
[Black "Yee, David"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "35"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Bf4 g6 5. Nc3 Bg7 6. Qd2 0-0 7. Bh6 Bf5 8. Bxg7 Kxg7 9. h3 a6 10. g4 Bd7 11. 0-0-0 b5 12. a3 a5 13. Ng5 b4 14. Nce4 bxa3 15. bxa3 Na6 16. Nxf6 exf6 17. Ne4 Qb6 18. Qc3 1-0

[Event "Sioux Falls op"]
[Site "Sioux Falls"]
[Date "1998.??.??"]
[Round "?"]
[White "Bergan, Jerry"]
[Black "Ahlers, Paul"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "62"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. d3 e5 4. b3 c6 5. Bb2 Bb4+ 6. c3 Ba5 7. Nd2 0-0 8. a3 Bf5 9. h3 Nbd7 10. Qc2 Re8 11. 0-0-0 e4 12. g4 exd3 13. exd3 Bg6 14. f4 h6 15. f5 Bh7 16. Ndf3 Ne5 17. Nxe5 Rxe5 18. Nf3 Re8 19. Rhe1 Qd6 20. Rxe8+ Rxe8 21. Re1 Rxe1+ 22. Nxe1 Nxg4 23. hxg4 Qf4+ 24. Kb1 Qxg4 25. Ka2 Bxf5 26. b4 Bc7 27. Qf2 Bg3 28. Qxa7 Bxe1 29. Bxd5 cxd5 30. Qxb7 Bxd3 31. Qxd5 Bc4+ 0-1

