[Event "Dieren op-A"]
[Site "Dieren"]
[Date "2001.??.??"]
[Round "?"]
[White "Goudriaan, Patrick"]
[Black "Weijsenfeld, Martin"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "44"]
[EventDate "2001.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. Bd3 Bg4 4. f3 Bd7 5. Nd2 Nc6 6. f4 e6 7. Ndf3 Bd6 8. Ne2 Qe7 9. c3 0-0-0 10. Ng3 h5 11. Ne5 h4 12. Nf1 g5 13. Qf3 g4 14. Nxg4 Nxg4 15. Qxg4 e5 16. Bf5 exd4 17. Bxd7+ Rxd7 18. Qg7 Re8 19. Qg5 Qe4 20. Qxh4 Qxg2 21. Ng3 Nb4 22. cxb4 Bxb4+ 0-1

[Event "Groningen SO ON Mini op-A"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "2"]
[White "Weijsenfeld, Martin"]
[Black "Boer, Alef"]
[Result "0-1"]
[ECO "B03"]
[BlackElo "2177"]
[PlyCount "56"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Bd3 dxe5 6. dxe5 Nc6 7. Nf3 Nb4 8. Be2 Qxd1+ 9. Bxd1 Nd3+ 10. Kd2 Nxf2 11. Rf1 Nxd1 12. b3 Bg4 13. Kxd1 0-0-0+ 14. Ke1 e6 15. Bd2 h6 16. Bc3 Be7 17. Nbd2 Rd3 18. Rc1 Rhd8 19. Ba5 g5 20. Rf2 Bc5 21. Re2 Be3 22. Rc3 Bc5 23. Rxd3 Rxd3 24. h3 Bf5 25. Ne4 Be7 26. Ng3 Bxh3 27. Rd2 Rxd2 28. Kxd2 Bxg2 0-1

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Hummel, Joop"]
[Black "Weijsenfeld, Martin"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "44"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d3 Nc6 2. g3 e5 3. Nf3 d5 4. Bg2 Be7 5. 0-0 h5 6. c4 Be6 7. cxd5 Bxd5 8. Nc3 Be6 9. Qa4 Qd7 10. Be3 h4 11. Rfc1 hxg3 12. Nb5 Bd6 13. Rxc6 bxc6 14. Nxd6+ Qxd6 15. hxg3 Ne7 16. Rc1 Bd5 17. Bc5 Qh6 18. Be3 Qd6 19. Qg4 g6 20. Bc5 Qf6 21. Nxe5 Qxe5 22. Bd4 Qh5 0-1

