[Event "Dieren op reserve-A"]
[Site "Dieren"]
[Date "2005.07.28"]
[Round "3"]
[White "De Jong, Siegbert"]
[Black "Van Bohemen, Cees"]
[Result "0-1"]
[ECO "A04"]
[BlackElo "2089"]
[PlyCount "86"]
[EventDate "2005.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 e6 4. d3 Be7 5. c4 a6 6. Nc3 d6 7. a3 Bd7 8. Rb1 Rb8 9. b4 cxb4 10. axb4 b5 11. cxb5 axb5 12. Qb3 Nf6 13. 0-0 h5 14. Bf4 Ng4 15. Ne4 e5 16. Nfg5 Nh6 17. Be3 f5 18. Ne6 Bxe6 19. Qxe6 fxe4 20. Bxe4 Qd7 21. Qg6+ Nf7 22. Rfc1 Ncd8 23. Bf5 Qb7 24. Qxg7 Bf8 25. Qg6 h4 26. gxh4 Rxh4 27. Bg5 Rh8 28. h4 Be7 29. e4 Bxg5 30. hxg5 Qe7 31. Rc2 Qxg5+ 32. Qxg5 Nxg5 33. Rc7 Nf3+ 34. Kg2 Nh4+ 35. Kg3 Nxf5+ 36. exf5 Rb7 37. Rbc1 Rh7 38. Rc8 Rbf7 39. Kf3 Rxf5+ 40. Ke2 Rhf7 41. Rh1 Rxf2+ 42. Ke1 Ke7 43. Rb8 Nc6 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.27"]
[Round "6"]
[White "Rietveld, Renze"]
[Black "De Jong, Siegbert"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "69"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 0-0 6. Nge2 e5 7. h3 Nc6 8. Be3 Re8 9. 0-0 exd4 10. Nxd4 Bd7 11. Re1 a6 12. a4 Nb4 13. g4 c5 14. Nde2 Bc6 15. Ng3 Qc7 16. Bf4 Re6 17. Qd2 Nd7 18. Nf1 Be5 19. Bxe5 Nxe5 20. Ne3 Bd7 21. f4 Nec6 22. Ncd5 Nxd5 23. exd5 Rxe3 24. Rxe3 Nd4 25. Rae1 Qb6 26. b3 a5 27. Kh2 Qb4 28. Qf2 Qa3 29. Re7 Rd8 30. c3 Nxb3 31. f5 g5 32. Qe3 Qxa4 33. Qxg5+ Kf8 34. Rxf7+ Kxf7 35. Re7+ 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.21"]
[Round "1"]
[White "Boersma, Jan"]
[Black "De Jong, Siegbert"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2229"]
[PlyCount "39"]
[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 d6 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nge2 0-0 6. 0-0 e5 7. h3 Nc6 8. d3 Be6 9. f4 Qd7 10. g4 exf4 11. Nxf4 Nd4 12. Be3 Ne8 13. Qd2 c6 14. Rf2 b5 15. Nd1 c5 16. c3 Nc6 17. d4 cxd4 18. cxd4 Bc4 19. b3 Be6 20. Rc1 1-0

