[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2003.12.26"]
[Round "5"]
[White "Van der Werf, Peter"]
[Black "Beijer, Bart"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "84"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 e6 4. dxe6 Bxe6 5. Nf3 Bd6 6. Be2 0-0 7. 0-0 Re8 8. d4 c6 9. Nc3 Qc7 10. c5 Bf4 11. Bxf4 Qxf4 12. Ne5 Rd8 13. g3 Qxd4 14. Qxd4 Rxd4 15. Rad1 Rxd1 16. Rxd1 Nbd7 17. Nxd7 Nxd7 18. b4 a5 19. a3 Kf8 20. Ne4 axb4 21. axb4 Ra4 22. Ng5 Bd5 23. b5 Nxc5 24. bxc6 bxc6 25. Nxh7+ Kg8 26. Ng5 f6 27. Nf3 Ne4 28. Bf1 Ra2 29. Nh4 Nxf2 30. Re1 Ng4 31. Re2 Ra1 32. Rc2 Rxf1+ 33. Kxf1 Ne3+ 34. Ke2 Nxc2 35. Nf5 Kf7 36. Kd2 Nb4 37. Kc3 Na6 38. Ne3 Ke6 39. Kd4 c5+ 40. Kc3 Nc7 41. h4 Nb5+ 42. Kd3 c4+ 0-1

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2003.12.23"]
[Round "3"]
[White "Van der Werf, Peter"]
[Black "Van der Zon, Stef"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "48"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. d4 cxd4 6. Nxd4 Ngf6 7. Nc3 g6 8. 0-0 Bg7 9. Be3 0-0 10. f4 Nb6 11. Qe2 Qd7 12. Rad1 Qg4 13. Nf3 Nh5 14. e5 dxe5 15. fxe5 Qc4 16. Qd2 Qe6 17. b3 Rac8 18. Nb5 Bxe5 19. Nxe5 Qxe5 20. c4 Rcd8 21. Qxd8 Qxe3+ 22. Kh1 Rxd8 23. Rxd8+ Kg7 24. Nc7 Nf6 0-1

[Event "Groningen SO ON op-B"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "8"]
[White "De Wit, Gerard"]
[Black "Van der Werf, Peter"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "79"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Ne8 10. Nd2 f5 11. c5 f4 12. Bg4 Nf6 13. Bxc8 Rxc8 14. Nc4 g5 15. g4 fxg3 16. fxg3 g4 17. Bg5 h5 18. Rc1 Nh7 19. Rxf8+ Qxf8 20. Be3 Ng6 21. Qd2 Qe7 22. Rf1 Bf6 23. Rf5 h4 24. Nb5 a6 25. cxd6 cxd6 26. Nb6 Rb8 27. Nc3 Kg7 28. Nd1 Qc7 29. Nf2 Bg5 30. Nxg4 Bxe3+ 31. Qxe3 hxg3 32. hxg3 Ne7 33. Qh6+ Kg8 34. Nf6+ Nxf6 35. Rg5+ Kf7 36. Rg7+ Ke8 37. Qh8+ Nfg8 38. Rxg8+ Nxg8 39. Qxg8+ Ke7 40. Qg7+ 1-0

