[Event "Hoogeveen Essent Amateur"]
[Site "Hoogeveen"]
[Date "2004.10.16"]
[Round "2"]
[White "Mellema, Andries"]
[Black "Vonk, Jan"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "41"]
[EventDate "2004.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. d4 exd4 5. Nxd4 Be7 6. Be2 Bd7 7. f4 Nc6 8. Be3 Nxd4 9. Bxd4 Bc6 10. Bf3 0-0 11. Qe2 Re8 12. 0-0-0 Bf8 13. e5 Nd7 14. Kb1 Bxf3 15. Qxf3 c5 16. Bf2 Qb8 17. Ne4 Re6 18. Ng5 Rg6 19. Qh5 h6 20. Nxf7 Qe8 21. Qxg6 1-0

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.02"]
[Round "1"]
[White "Leuw, Micha"]
[Black "Vonk, Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2201"]
[PlyCount "59"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qf6 5. Nxc6 Bc5 6. Qd2 Qxc6 7. Nc3 Nf6 8. Bd3 a6 9. 0-0 0-0 10. Qg5 h6 11. Qh4 d6 12. Bxh6 Ng4 13. Nd5 Re8 14. Bg5 f6 15. Bd2 Be6 16. b4 Bd4 17. c3 Ba7 18. Rac1 Ne5 19. Bb1 Bxd5 20. exd5 Qxd5 21. Rcd1 Qc4 22. Qh3 Qg4 23. Qh7+ Kf8 24. Kh1 Bxf2 25. Bc2 Ke7 26. Rxf2 Rh8 27. Qf5 Rxh2+ 28. Kxh2 Rh8+ 29. Kg1 Qg3 30. Qf4 1-0

[Event "Leeuwarden op"]
[Site "Leeuwarden"]
[Date "1994.??.??"]
[Round "5"]
[White "De Groot, Ymar"]
[Black "Vonk, Jan"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "123"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 c6 5. e4 d6 6. e5 Ng4 7. Qe2 dxe5 8. h3 Nf6 9. Nxe5 Bf5 10. Bg2 0-0 11. Nc3 Bh6 12. f4 Nh5 13. Qe3 Nd7 14. Ng4 Bg7 15. 0-0-0 Nb6 16. Nf2 Bd4 17. Qf3 Qc7 18. g4 Qxf4 19. Rhf1 Qxf3 20. Bxf3 Bxc2 21. Kxc2 Ng3 22. Rg1 Bxf2 23. Rg2 Bd4 24. Rxg3 Nd7 25. Ne4 Bxb2 26. Kxb2 Ne5 27. Be2 Rad8 28. d4 Nd7 29. h4 Nb6 30. Nc5 Rb8 31. a4 Rfd8 32. Rf3 Rd6 33. a5 Nd5 34. Bc4 b6 35. Ne4 Rd7 36. axb6 axb6 37. Rdf1 Rf8 38. Ng5 e6 39. Nxe6 Re8 40. Ng5 Ree7 41. b4 h6 42. Bxd5 cxd5 43. Nh3 Re4 44. Rf4 Re2+ 45. Kb1 Rde7 46. Rd1 Rh2 47. Rf3 Ree2 48. Rb3 Re4 49. g5 Rxh4 50. Rdd3 Rg4 51. gxh6 Kh7 52. Rb2 Rh1+ 53. Ka2 Rf1 54. Rh2 f6 55. Rc3 Rxd4 56. Rc7+ Kxh6 57. Nf4+ Kg5 58. Ne6+ Kf5 59. Nxd4+ Ke5 60. Nb5 d4 61. Rd7 Rf5 62. Re2+ 1-0

