[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.13"]
[Round "9"]
[White "Akkerboom, Jacob"]
[Black "De Clerck, Martijn"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1785"]
[BlackElo "1858"]
[PlyCount "65"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 c6 5. e3 Nbd7 6. Nc3 Qa5 7. Nd2 Ne4 8. Ndxe4 dxe4 9. Bf4 Bb4 10. Qc2 h5 11. h4 Nf8 12. Be2 Ng6 13. Bg3 Qf5 14. a3 Bxc3+ 15. Qxc3 Bd7 16. 0-0-0 b5 17. Rd2 a5 18. Qb3 0-0 19. Qd1 Rfc8 20. Bxh5 bxc4 21. Bg4 Qb5 22. Be2 Ne7 23. h5 Nf5 24. Bf4 f6 25. g4 Nh6 26. Qc2 c5 27. d5 Qb3 28. Bxh6 gxh6 29. Bxc4 Qxc2+ 30. Rxc2 e5 31. Be2 Rab8 32. Rc3 Bb5 33. Bxb5 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "7"]
[White "Akkerboom, Jacob"]
[Black "Zimmermann, Dries"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1785"]
[BlackElo "1602"]
[PlyCount "74"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Qc2 Bb4 8. Rc1 Qxa2 9. Nd2 Qa5 10. Bh4 0-0 11. Bd3 Bxc3 12. bxc3 Re8 13. f4 h6 14. h3 c5 15. g4 Kh8 16. Nf3 dxc4 17. Bxc4 b5 18. Ba2 Bb7 19. 0-0 Be4 20. Qf2 Nd5 21. Ne5 Nxe5 22. fxe5 Bg6 23. Bxd5 exd5 24. Qf3 c4 25. Qxd5 Qb6 26. Rf4 Rab8 27. Bf2 Qb7 28. e4 a5 29. Qxb7 Rxb7 30. Ra1 Ra8 31. d5 Bh7 32. Bc5 g5 33. Rf6 Bxe4 34. Rxh6+ Kg7 35. Rd6 a4 36. Ba3 Re8 37. Bc5 Kg8 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "8"]
[White "Haast, Rob"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1664"]
[BlackElo "1785"]
[PlyCount "68"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f3 e6 7. Be3 Be7 8. g4 Nd7 9. Qd2 a6 10. Bc4 Bh4+ 11. Kd1 Be7 12. Bxe6 fxe6 13. Nxe6 Qa5 14. Nxg7+ Kf7 15. Nf5 Nde5 16. Nh6+ Ke8 17. Qd5 Bd7 18. Qxa5 Nxa5 19. Nd5 Rc8 20. Bb6 Nac4 21. Nxe7 Kxe7 22. Bd4 Rhf8 23. b3 Na5 24. Bxe5 dxe5 25. Nf5+ Bxf5 26. exf5 Rfd8+ 27. Kc1 Nc6 28. f4 exf4 29. Kb2 Rd2 30. Rad1 Rcd8 31. Rde1+ Kf7 32. Re4 f3 33. Kc3 Rg2 34. Rf1 Rdd2 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.11"]
[Round "6"]
[White "Donker, Roel"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "A67"]
[WhiteElo "1941"]
[BlackElo "1785"]
[PlyCount "49"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. c4 exd5 4. cxd5 d6 5. Nc3 Nf6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nbd7 9. e5 Nh5 10. e6 Qh4+ 11. g3 Nxg3 12. hxg3 Qxh1 13. Be3 fxe6 14. dxe6 Bxc3+ 15. bxc3 a6 16. Qxd6 axb5 17. Rd1 Qc6 18. exd7+ Bxd7 19. Qe5+ Kf7 20. Rd6 Rhe8 21. Qf6+ Kg8 22. Rxc6 Bxc6 23. f5 Rxe3+ 24. Kd2 Rf8 25. Qh4 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "5"]
[White "Akkerboom, Jacob"]
[Black "Nederlof, Jesper"]
[Result "0-1"]
[ECO "D08"]
[WhiteElo "1785"]
[BlackElo "1918"]
[PlyCount "42"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Bg4 6. Nbd2 Nge7 7. h3 Bxf3 8. Nxf3 Qd7 9. b4 Ng6 10. Bb2 Ngxe5 11. Nxe5 Nxe5 12. Qxd4 Qxd4 13. Bxd4 Nxc4 14. e3 Nxa3 15. Bd3 Rd8 16. Bc3 Rxd3 17. Rxa3 Rxc3 18. Rxc3 Bxb4 19. Kd2 Kd7 20. Rd1 Bxc3+ 21. Kxc3+ Kc6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "4"]
[White "De Jong, Tiemen"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1603"]
[BlackElo "1785"]
[PlyCount "70"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 b6 6. f4 e6 7. Bd2 Bb7 8. Nf3 d6 9. Nc3 Nxc3 10. Bxc3 Nd7 11. Bd3 dxe5 12. fxe5 Be7 13. 0-0 a6 14. Qe2 b5 15. Qf2 0-0 16. Qc2 h6 17. Rf2 b4 18. Bd2 Nb6 19. Bh7+ Kh8 20. Qd3 f5 21. exf6 Bxf6 22. Ne5 Bxe5 23. Rxf8+ Qxf8 24. dxe5 Rd8 25. Qc2 Rxd2 26. Qxd2 Kxh7 27. Qc2+ Kg8 28. Qc7 Bxg2 29. Qxb6 Bh3 30. Rd1 Qf3 31. Rd8+ Kh7 32. Qf2 Qe4 33. Qd2 Qg4+ 34. Kh1 Qf3+ 35. Kg1 Qf1# 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Naarding, Eelco"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "1785"]
[BlackElo "1482"]
[PlyCount "33"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c6 7. Nge2 a6 8. g4 Nbd7 9. Ng3 b5 10. h4 Nb6 11. h5 Qc7 12. Qd2 e5 13. Qh2 Bh8 14. dxe5 dxe5 15. g5 Nxh5 16. Nxh5 gxh5 17. Bxb6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "2"]
[White "Van Dommelen, Susan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "1514"]
[BlackElo "1785"]
[PlyCount "47"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Nxc6 bxc6 9. Ba4 Rb8 10. Rb1 Be7 11. 0-0 Qc7 12. Bb3 0-0 13. Qd3 Rfd8 14. f4 c5 15. Kh1 Bc6 16. f5 d5 17. fxe6 fxe6 18. Qh3 Qc8 19. e5 c4 20. exf6 gxf6 21. Bxf6 Bxf6 22. Rxf6 Rxb3 23. Qg3+ Kh8 24. Rf7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.08"]
[Round "1"]
[White "Akkerboom, Jacob"]
[Black "Tonoli, Benjamin"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "1785"]
[BlackElo "2169"]
[PlyCount "132"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Nc3 d5 6. Bd3 dxc4 7. Bxc4 Bd6 8. Qc2 c5 9. e4 cxd4 10. Nxd4 Be5 11. Bb5+ Kf8 12. Nde2 a6 13. Bd3 Nc6 14. a3 Rc8 15. 0-0 Nd4 16. Nxd4 Bxd4 17. Bd2 Qd6 18. h3 Rd8 19. Bc4 Qc6 20. Bd3 Bxc3 21. Bxc3 Nxe4 22. Bxe4 Qxe4 23. Qxe4 Bxe4 24. Rfd1 Rxd1+ 25. Rxd1 Bd5 26. Rc1 Ke7 27. Bd4 Rb8 28. Rc7+ Kd6 29. Ra7 e5 30. Be3 a5 31. f4 Bc4 32. Kf2 Ke6 33. fxe5 Kxe5 34. Re7+ Kf6 35. Ra7 Kg6 36. Bd4 Bb5 37. Kf3 f6 38. Re7 Bc6+ 39. Kf2 b5 40. Re6 Rc8 41. Re7 Bd5 42. Bc3 b4 43. axb4 axb4 44. Bxb4 Rc2+ 45. Re2 Rxe2+ 46. Kxe2 Bxg2 47. h4 Kf5 48. Kf2 Bd5 49. Kg3 h6 50. Bd2 g5 51. b4 Bc6 52. Be3 Kg6 53. Bb6 f5 54. Bc7 f4+ 55. Kf2 Kf5 56. hxg5 hxg5 57. Bb6 g4 58. Bc5 g3+ 59. Kf1 Kg4 60. Bb6 Bb5+ 61. Kg1 f3 62. Be3 Kf5 63. Bb6 Ke4 64. Bc5 Kd3 65. Bd6 f2+ 66. Kg2 Ke2 0-1

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.14"]
[Round "9"]
[White "Regniers, Yves"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "A43"]
[PlyCount "102"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. e4 Nf6 4. Nc3 d6 5. Nf3 exd5 6. exd5 Bg4 7. Bf4 Be7 8. a4 a6 9. Bd3 0-0 10. 0-0 Qc7 11. Bc4 Nbd7 12. h3 Bh5 13. g4 Bg6 14. Re1 Rfe8 15. Nh4 Nb6 16. Bf1 Nfd7 17. Nxg6 hxg6 18. a5 Nc8 19. Ne4 c4 20. b3 cxb3 21. cxb3 Nf6 22. Qd2 Na7 23. Rac1 Qd7 24. Nc3 Bd8 25. Na4 Nb5 26. g5 Rxe1 27. Rxe1 Ne8 28. Nb2 b6 29. Qe3 Nec7 30. axb6 Nxd5 31. Qe8+ Qxe8 32. Rxe8+ Kh7 33. Bd2 Nxb6 34. Bg2 Nc7 35. Bxa8 Nxe8 36. Bb7 Nc7 37. Ba5 Ne6 38. Bxa6 Nxg5 39. Kg2 Ne6 40. b4 Nd5 41. Bxd8 Nxd8 42. Nd3 Ne6 43. Kg3 Kg8 44. Bc4 Nec7 45. Kf3 Nb6 46. Bb3 Kf8 47. h4 Ke7 48. Kg4 Ncd5 49. f4 Kd7 50. Kf3 Kc6 51. Ke4 Nf6+ 1/2-1/2

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.13"]
[Round "8"]
[White "Akkerboom, Jacob"]
[Black "De Jong, Jasper"]
[Result "0-1"]
[ECO "D31"]
[PlyCount "46"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 b6 4. Nf3 dxc4 5. e4 Ba6 6. Ne5 b5 7. a4 b4 8. Nb1 Nf6 9. Bg5 c5 10. d5 exd5 11. exd5 Qe7 12. f4 h6 13. d6 Qe6 14. Bxf6 gxf6 15. Qf3 fxe5 16. Qxa8 exf4+ 17. Be2 Bxd6 18. Qf3 Be5 19. 0-0 Bxb2 20. Ra2 Bd4+ 21. Kh1 Be3 22. Nd2 0-0 23. Rc2 Qg6 0-1

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.13"]
[Round "7"]
[White "Akkerboom, Jacob"]
[Black "Vos, Jan Pieter"]
[Result "0-1"]
[ECO "D07"]
[PlyCount "50"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. Nf3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 e4 8. Ne5 e3 9. fxe3 Nxe5 10. dxe5 Be6 11. Qxd5 Bxd5 12. e6 f6 13. Rg1 Bxe6 14. g4 h6 15. e4 Ne7 16. e5 Nd5 17. Bd4 0-0-0 18. e3 fxe5 19. Bxe5 Nxe3 20. Rc1 Rd7 21. Be2 Re8 22. h3 Bxg4 23. Bxc7 Bxe2 24. Bg3+ Bc4 25. b3 Ng4+ 0-1

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.13"]
[Round "7"]
[White "Fokker, Bjorn"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "D10"]
[PlyCount "90"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 c5 2. c3 cxd4 3. cxd4 d5 4. Nc3 Nc6 5. Nf3 Bf5 6. e3 e6 7. Qb3 Qc8 8. Bd2 Bd6 9. Rc1 Nge7 10. Nb5 Bb8 11. Bb4 Qd7 12. Ba3 0-0 13. Be2 Rc8 14. 0-0 a6 15. Nc3 b5 16. Bc5 Ng6 17. Nxb5 axb5 18. Bxb5 Qc7 19. Ba3 Nh4 20. Ne5 Qb6 21. Bxc6 Qxb3 22. axb3 Ra7 23. Bb5 Rac7 24. Rxc7 Rxc7 25. Bd6 Rb7 26. Rc1 Bxd6 27. Rc8+ Bf8 28. Nd7 Ng6 29. Ba4 e5 30. Rd8 Bxd7 31. Rxd7 Rxd7 32. Bxd7 exd4 33. exd4 Nf4 34. Kf1 Bb4 35. g3 Ne6 36. Bc6 Nc7 37. Ke2 Kf8 38. f3 Ke7 39. Ke3 Kd6 40. Bb7 Ne6 41. Kd3 Ba5 42. Bc8 Bb6 43. b4 Nxd4 44. f4 Nc6 45. b5 Na7 0-1

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.11"]
[Round "4"]
[White "Akkerboom, Jacob"]
[Black "Berendsen, David"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "33"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 c5 5. cxd5 exd5 6. Nc3 c4 7. e4 dxe4 8. Ne5 h6 9. Qa4+ Nbd7 10. Bxc4 Qb6 11. Bxf7+ Kd8 12. Bb3 Nxe5 13. dxe5 hxg5 14. exf6 gxf6 15. Rd1+ Bd6 16. Qa3 Kd7 17. Nb5 1-0

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.11"]
[Round "5"]
[White "Springelkamp, Henriet"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "B83"]
[PlyCount "74"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. Be3 Be7 8. 0-0 a6 9. Qd2 Qc7 10. Rad1 0-0 11. f3 Rd8 12. Na4 Nd7 13. b3 b5 14. Nb2 Nc5 15. c4 Bd7 16. Nxc6 Bxc6 17. Qc2 b4 18. Nd3 a5 19. Bf4 Qb6 20. Nxc5 Qxc5+ 21. Kh1 a4 22. Rd3 d5 23. Be3 d4 24. Bc1 Qe5 25. f4 Qa5 26. Bf3 e5 27. Rfd1 f6 28. Qe2 axb3 29. axb3 Qc5 30. f5 Ra1 31. Bb2 Ra2 32. Ra1 Rda8 33. Rxa2 Rxa2 34. g4 Bb7 35. Rd2 Qc8 36. Qd3 Qa8 37. Kg2 Bc5 1/2-1/2

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.10"]
[Round "2"]
[White "Akkerboom, Jacob"]
[Black "Droog, Ron"]
[Result "1-0"]
[ECO "D52"]
[PlyCount "69"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Bd6 7. Qc2 Qc7 8. Rc1 dxc4 9. Bxc4 h6 10. Bh4 0-0 11. 0-0 b6 12. e4 Bb4 13. a3 Bxc3 14. bxc3 Bb7 15. Bg3 Qc8 16. Bd6 Re8 17. e5 Nd5 18. Ba2 c5 19. Bb1 g6 20. Nh4 Nf4 21. f3 cxd4 22. Qd2 g5 23. cxd4 Qd8 24. g3 Ba6 25. gxf4 Bxf1 26. Rxf1 gxh4 27. Qg2+ Kh8 28. Qc2 f5 29. exf6 Nxf6 30. Be5 Kg8 31. Qg6+ Kf8 32. Bxf6 Qd7 33. Qxh6+ Kg8 34. Qh8+ Kf7 35. Qg7# 1-0

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.10"]
[Round "3"]
[White "Sprangers, Remco"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "49"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 b6 6. cxd4 e6 7. Nc3 Nxc3 8. bxc3 Qc7 9. Bd2 Be7 10. Bd3 Bb7 11. 0-0 d6 12. Re1 Nd7 13. Ng5 dxe5 14. dxe5 Bxg5 15. Bxg5 h6 16. Qh5 Rg8 17. Bh4 g5 18. Bg3 Nc5 19. Bb5+ Ke7 20. Qxh6 Rg6 21. Qh5 a6 22. Bf1 Qc6 23. Rad1 Ne4 24. Rd4 Nxc3 25. Rc4 1-0

[Event "Stork Young Masters op"]
[Site "Hengelo"]
[Date "2004.08.09"]
[Round "1"]
[White "Broekmeulen, Jasper"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B63"]
[WhiteElo "2177"]
[PlyCount "37"]
[EventDate "2004.08.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Be7 9. f3 0-0 10. Nb3 b5 11. Bxf6 gxf6 12. Bd3 b4 13. Ne2 Qb6 14. Qh6 Kh8 15. e5 f5 16. exd6 Bxd6 17. Bxf5 exf5 18. Rxd6 Bb7 19. Nbd4 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.09"]
[Round "9"]
[White "Stuijts, Marielle"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "D40"]
[PlyCount "64"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 c5 2. e3 e6 3. c4 Nf6 4. Nc3 d5 5. Nf3 Nc6 6. a3 Bd6 7. cxd5 exd5 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Bg4 11. Be2 Rc8 12. Rc1 0-0 13. 0-0 Bb8 14. Nb5 Ne4 15. Nbd4 Qd6 16. Nxc6 bxc6 17. Be5 Qh6 18. Bxb8 Rxb8 19. Nd4 Bd7 20. Bg4 f5 21. Be2 f4 22. exf4 Rxf4 23. f3 Ng5 24. g3 Rf6 25. f4 Ne4 26. Bg4 Bxg4 27. Qxg4 Rg6 28. Qf3 Nd2 29. Qf2 Nxf1 30. Qxf1 Re8 31. Qf3 Qh3 32. Ne2 Rh6 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "8"]
[White "Akkerboom, Jacob"]
[Black "Van Dommelen, Susan"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "45"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 Nc6 7. Nf3 a6 8. a3 Qd6 9. Bd3 e5 10. Bxf6 Bxf6 11. cxd5 exd4 12. exd4 Nxd4 13. Nxd4 0-0 14. Nde2 Bxc3+ 15. bxc3 Re8 16. 0-0 c6 17. c4 Rd8 18. Nc3 b5 19. Re1 Bb7 20. Ne4 Qd7 21. d6 bxc4 22. Bxc4 c5 23. Nxc5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.08"]
[Round "7"]
[White "Cornelissen, Philip"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "49"]
[EventDate "2003.08.04"]
[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 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 e6 5. Bc4 Nf6 6. d3 Be7 7. 0-0 0-0 8. Qe1 a6 9. Qg3 b5 10. Bb3 d5 11. a3 Qb6 12. Kh1 Rd8 13. e5 Nd7 14. f5 Kh8 15. fxe6 fxe6 16. Bg5 Bxg5 17. Nxg5 Ndxe5 18. Nf7+ Nxf7 19. Rxf7 Rg8 20. Raf1 Qd8 21. Ne2 Ra7 22. Nf4 h6 23. Ng6+ Kh7 24. Nf8+ Kh8 25. Qg6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.07"]
[Round "6"]
[White "Akkerboom, Jacob"]
[Black "Goedbloed, Joost"]
[Result "1-0"]
[ECO "D50"]
[PlyCount "57"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Bb4 5. e3 0-0 6. Bd3 Nc6 7. Nf3 h6 8. Bh4 Re8 9. 0-0 Bxc3 10. bxc3 b6 11. Nd2 dxc4 12. Nxc4 Ba6 13. Re1 e5 14. Nxe5 Nxe5 15. Bxa6 Ng6 16. Bxf6 Qxf6 17. Qc2 Re7 18. g3 Rae8 19. e4 Qf3 20. Re3 Qg4 21. e5 Nf4 22. Re4 Qg6 23. Rc1 Nh3+ 24. Kg2 Ng5 25. Bd3 Nxe4 26. Bxe4 Qe6 27. f4 g6 28. c4 f5 29. Bd5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "5"]
[White "Akkerboom, Jacob"]
[Black "Roeygens, Koenraad"]
[Result "1/2-1/2"]
[ECO "D55"]
[PlyCount "83"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. 0-0 b6 9. cxd5 exd5 10. Rc1 Bb7 11. Bb1 Rc8 12. Qd3 h6 13. Bh4 c5 14. Ne5 g5 15. Bg3 Kg7 16. h4 Qe8 17. hxg5 hxg5 18. Qf5 Rh8 19. Qxg5+ Kf8 20. Bf5 a6 21. f3 Bc6 22. Bxd7 Nxd7 23. Qf5 Nxe5 24. Bxe5 Rh6 25. Qf4 Rg6 26. Qh2 Bf6 27. Bd6+ Kg7 28. Be5 Qe6 29. Kf2 Re8 30. Bxf6+ Rxf6 31. Rce1 Rh8 32. Qc7 Bb5 33. Nxb5 axb5 34. dxc5 Ra8 35. cxb6 Qxb6 36. Qxb6 Rxb6 37. a3 b4 38. Rd1 bxa3 39. bxa3 Rxa3 40. Rxd5 Rb2+ 41. Kg1 Rxe3 42. Rfd1 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.06"]
[Round "4"]
[White "Brandenburg, Daan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2213"]
[PlyCount "79"]
[EventDate "2003.08.04"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nb3 e6 7. Bd3 Be7 8. 0-0 0-0 9. f4 Nb4 10. Be2 a6 11. a3 Nc6 12. Bf3 Qc7 13. Be3 b5 14. Qe1 Bb7 15. Rd1 Rab8 16. g4 b4 17. axb4 Nxb4 18. Qf2 Nd7 19. Rd4 Ba8 20. Rfd1 Rfd8 21. R4d2 Nb6 22. Bxb6 Rxb6 23. Nc1 Bf6 24. N1e2 Nc6 25. b3 Nb4 26. Na4 Rbb8 27. g5 Be7 28. Ng3 Bc6 29. Nb2 Bb5 30. Qg2 Bd7 31. Kh1 Kh8 32. h4 Rb5 33. Nc4 Bc6 34. h5 Ba8 35. g6 fxg6 36. hxg6 hxg6 37. Qh3+ Kg8 38. Rh2 Rh5 39. Nxh5 gxh5 40. Bxh5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "2"]
[White "Akkerboom, Jacob"]
[Black "Groenewolt, Jessica"]
[Result "1/2-1/2"]
[ECO "D60"]
[PlyCount "95"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. 0-0 dxc4 9. Bxc4 Qc7 10. Rc1 e5 11. Bd3 exd4 12. exd4 Nb6 13. Qc2 h6 14. Bh4 Nbd5 15. Qd2 Be6 16. Bb1 Rad8 17. Rfe1 Rd6 18. Bg3 Bg4 19. Nb5 Qb8 20. Nxd6 Bxd6 21. Ne5 Bb4 22. Qd3 Bxe1 23. Nxg4 Qe8 24. Bd6 Ba5 25. Bxf8 Qxf8 26. a3 Qd6 27. Ne5 Nf4 28. Qd1 Qd5 29. Nf3 Bb6 30. Rc2 Ne4 31. b4 Qb3 32. Rc1 Qxa3 33. Bxe4 Qxc1 34. Qxc1 Ne2+ 35. Kf1 Nxc1 36. d5 cxd5 37. Bxd5 Na2 38. Bxb7 Nxb4 39. Ne5 Kf8 40. Ke2 f6 41. Nc6 Nxc6 42. Bxc6 Ke7 43. f3 Kd6 44. Ba4 Kd5 45. Kd3 Ke5 46. Bb5 Bg1 47. h3 Kd5 48. Ba4 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.05"]
[Round "3"]
[White "Hendriks, Tim"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "82"]
[EventDate "2003.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 c5 2. c3 d5 3. e3 cxd4 4. exd4 Nc6 5. f4 Nf6 6. Bd3 e6 7. Nf3 Be7 8. 0-0 0-0 9. Nbd2 a6 10. Ne5 Qc7 11. Qe1 b5 12. Ndf3 b4 13. g4 bxc3 14. bxc3 Nb8 15. Bb2 Bb7 16. Qh4 Ne4 17. g5 Nd7 18. Nxd7 Qxd7 19. Ne5 Qc7 20. Rf3 g6 21. Qh6 f5 22. Nxg6 Rf7 23. Ne5 Rg7 24. Qxe6+ Kh8 25. Rh3 Rf8 26. Ng6+ Rxg6 27. Qxg6 Bxg5 28. Bxe4 Bxf4 29. Bxd5 Bxd5 30. Kf2 Bd2 31. Qh5 Qf4+ 32. Rf3 Bxf3 33. Qxf3 Qxh2+ 34. Kf1 Rg8 35. Qf2 Qh3+ 36. Ke2 Rg2 37. Rf1 Qe3+ 38. Kd1 Rxf2 39. Rg1 Bxc3 40. Bxc3 Qe2+ 41. Kc1 Qc2# 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2003.08.04"]
[Round "1"]
[White "Van Eerd, Bart"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "75"]
[EventDate "2003.08.04"]
[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 c5 2. Nc3 d6 3. f4 Nc6 4. Bb5 Bd7 5. Bxc6 Bxc6 6. Nf3 Nf6 7. d3 e6 8. 0-0 Be7 9. Qe1 0-0 10. e5 Nd7 11. Qg3 Kh8 12. exd6 Bxd6 13. Ne5 Nxe5 14. fxe5 Be7 15. Be3 b5 16. Rf4 f5 17. exf6 gxf6 18. Ne4 f5 19. Nxc5 Rg8 20. Qe1 Rxg2+ 21. Kf1 Qd5 22. Bd4+ Kg8 23. Qxe6+ Qxe6 24. Nxe6 Kf7 25. Re1 Rxh2 26. Rxf5+ Kg6 27. Rf4 Rxc2 28. Bc3 Rh2 29. Rg4+ Kh6 30. Rg1 Bd7 31. Bg7+ Kh5 32. Nf4+ Kh4 33. Rxe7 Bh3+ 34. Nxh3 Kxh3 35. Re3+ Kh4 36. Bf6+ Kh5 37. Re5+ Kh6 38. Bg7# 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.03"]
[Round "9"]
[White "Akkerboom, Jacob"]
[Black "Dijkstra, Maarten"]
[Result "1-0"]
[ECO "E71"]
[PlyCount "73"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Bg5 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nbd7 10. Rd1 Rf8 11. Nxc7 Rb8 12. Ne2 Nc5 13. Nc3 h6 14. Bxf6 Bxf6 15. b4 Ne6 16. N7d5 Bg7 17. Be2 Nd4 18. Bd3 Be6 19. 0-0 Rfd8 20. Rb1 Kh8 21. Rfc1 Rbc8 22. c5 Bf8 23. Kh1 f5 24. f3 f4 25. a4 Kg7 26. a5 a6 27. Nb6 Rc7 28. Bc4 Bd7 29. Ncd5 Rc6 30. Nxd7 Rxd7 31. Nb6 Rdc7 32. Bd5 Rf6 33. Nc4 Re7 34. Nd6 Nc6 35. b5 Nd8 36. bxa6 bxa6 37. Rb8 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.02"]
[Round "8"]
[White "Spork, Charlie"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "A31"]
[PlyCount "38"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 b6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb7 6. Bf4 d6 7. Nf3 g6 8. Qc2 Bg7 9. e4 Nc6 10. Be2 0-0 11. a3 Nd7 12. 0-0 Rc8 13. Rac1 Nde5 14. Qd2 Nxf3+ 15. Bxf3 Ne5 16. Bxe5 Bxe5 17. Nd5 e6 18. Ne3 Qe7 19. Rfd1 Rfd8 1/2-1/2

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.02"]
[Round "7"]
[White "Van der Velden, Bram"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "48"]
[EventDate "2003.04.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. 0-0 Be7 8. Kh1 0-0 9. Be3 a6 10. a4 Qc7 11. f4 Bd7 12. Nb3 b6 13. g4 Rfd8 14. g5 Ne8 15. Rf3 Nb4 16. Rh3 e5 17. f5 d5 18. Bd3 d4 19. Qh5 Bc5 20. Bc4 Bxf5 21. exf5 Qb7+ 22. Kg1 dxe3 23. Nxc5 bxc5 24. f6 Rd2 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.01"]
[Round "6"]
[White "Akkerboom, Jacob"]
[Black "Stoffers, Jeffrey"]
[Result "0-1"]
[ECO "E12"]
[PlyCount "66"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bg5 Bb7 5. a3 c5 6. e3 Be7 7. Nc3 cxd4 8. exd4 d5 9. Bd3 h6 10. Bh4 0-0 11. 0-0 Nbd7 12. cxd5 Nxd5 13. Bg3 Rc8 14. Nb5 a6 15. Nd6 Bxd6 16. Bxd6 Re8 17. Bc2 Nf8 18. Bg3 Nf6 19. Re1 Bxf3 20. gxf3 Qd5 21. Bb3 Qb7 22. Qd3 Rc6 23. Bh4 N8h7 24. f4 Rd8 25. Rad1 Rcd6 26. Rd2 R8d7 27. Bg3 Nh5 28. f5 Nxg3 29. hxg3 Ng5 30. d5 Rxd5 31. Bxd5 Rxd5 32. fxe6 Rxd3 33. e7 Nf3+ 0-1

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.30"]
[Round "4"]
[White "Akkerboom, Jacob"]
[Black "Cornelies, William"]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "39"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 0-0 7. Bd3 dxc4 8. Bxc4 c5 9. 0-0 b6 10. Rc1 Bb7 11. Qe2 Nd5 12. Bxe7 Qxe7 13. Rfd1 N7f6 14. dxc5 Nxc3 15. Rxc3 Ne4 16. Rcd3 Nxc5 17. Rd4 Rfd8 18. Qd2 Rxd4 19. Qxd4 h6 20. h3 1/2-1/2

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.30"]
[Round "5"]
[White "Blees, Enrico"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "B84"]
[PlyCount "118"]
[EventDate "2003.04.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. 0-0 Be7 8. Kh1 a6 9. f4 Bd7 10. Bf3 Qc7 11. Be3 0-0 12. Qe1 Rab8 13. a4 Na5 14. Rd1 b5 15. axb5 axb5 16. b3 b4 17. Nce2 e5 18. fxe5 dxe5 19. Nf5 Bxf5 20. exf5 e4 21. Bf4 Qb7 22. Bxb8 exf3 23. Rxf3 Rxb8 24. Ng3 Bc5 25. Qe5 Bb6 26. Re1 Nc6 27. Qf4 Nd4 28. Rd3 Nc6 29. Ne4 Nxe4 30. Qxe4 h6 31. f6 g6 32. Rh3 Nd4 33. Qf4 Nf5 34. Rxh6 Bf2 35. Re2 Rd8 36. Rxf2 Rd1+ 37. Rf1 Rxf1+ 38. Qxf1 Nxh6 39. Qe1 Qb6 40. Qe5 Qf2 41. h3 Kh7 42. Qe7 Qf1+ 43. Kh2 Qf4+ 44. Kh1 Qd4 45. Qf8 Qxf6 46. Qxb4 Qa1+ 47. Kh2 Qe5+ 48. Kg1 Nf5 49. Qb7 Kg7 50. b4 Qc3 51. Qe4 Qe3+ 52. Qxe3 Nxe3 53. c3 Nd5 54. b5 Nxc3 55. b6 Ne2+ 56. Kf2 Nd4 57. b7 Nc6 58. Ke3 Kf6 59. Kf4 g5+ 1/2-1/2

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.29"]
[Round "2"]
[White "Akkerboom, Jacob"]
[Black "De Ruijsscher, Mitchell"]
[Result "1-0"]
[ECO "D55"]
[PlyCount "65"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Nbd7 9. 0-0 Bb7 10. Qc2 c5 11. Ne5 h6 12. Nxd7 Nxd7 13. Bxe7 Qxe7 14. Rfe1 Rfe8 15. Qd2 Nf6 16. f3 Qd7 17. Rad1 c4 18. Bc2 b5 19. e4 b4 20. Na4 Qb5 21. Nc5 Rec8 22. e5 Nh7 23. f4 Nf8 24. f5 Rc7 25. Re3 Rxc5 26. dxc5 Qxc5 27. Kh1 Nd7 28. Rg3 Nxe5 29. Qxh6 Qf8 30. f6 a6 31. Qf4 Nd7 32. Rh3 Re8 33. Qh4 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.29"]
[Round "3"]
[White "Van Oosterom, Chiel"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "35"]
[EventDate "2003.04.??"]
[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 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. Bc4 Nb6 6. Bb3 d6 7. exd6 Bxd6 8. d4 cxd4 9. cxd4 N8d7 10. Nc3 Nf6 11. Bg5 0-0 12. 0-0 Be7 13. a3 Nbd5 14. Qd3 b6 15. Ne5 Bb7 16. Bc2 g6 17. Bh6 Re8 18. Ba4 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.28"]
[Round "1"]
[White "Tan, Matthew"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2166"]
[PlyCount "63"]
[EventDate "2003.04.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Be7 9. f3 0-0 10. h4 Bd7 11. g4 Rc8 12. Kb1 b5 13. Nxc6 Rxc6 14. Bd3 b4 15. Ne2 a5 16. Bxf6 Bxf6 17. g5 Be7 18. f4 Qb6 19. f5 a4 20. f6 Bd8 21. fxg7 Kxg7 22. h5 b3 23. cxb3 axb3 24. a3 d5 25. e5 Be7 26. g6 f5 27. exf6+ Bxf6 28. h6+ Kg8 29. g7 Ra8 30. Bxh7+ Kxh7 31. Qd3+ Kg8 32. Qg6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.10"]
[Round "9"]
[White "In't Veld, Daan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "35"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 c5 2. e4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. Be3 Be7 8. Qd2 a6 9. f4 Qc7 10. g4 0-0 11. g5 Nd7 12. 0-0-0 b5 13. f5 Nde5 14. f6 gxf6 15. gxf6 Bxf6 16. Nxc6 Qxc6 17. Bh6 Rd8 18. Bg5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "8"]
[White "Akkerboom, Jacob"]
[Black "Porte, Rinze"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "45"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Be7 6. Nf3 dxc4 7. Bxc4 b6 8. 0-0 Bb7 9. Qe2 0-0 10. Rfd1 Qc8 11. Rac1 h6 12. Bh4 Re8 13. Bb3 Ba6 14. Qc2 Qb7 15. d5 Nc5 16. dxe6 Nxe6 17. Nd5 Rac8 18. Bxf6 Bxf6 19. Nxf6+ gxf6 20. Qf5 Kg7 21. Rd7 Nd8 22. Qg4+ Kh8 23. Qh5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "7"]
[White "Boguslavskij, Taras"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B66"]
[PlyCount "67"]
[EventDate "2002.08.05"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. Nxc6 bxc6 9. Be2 Be7 10. Rd1 d5 11. 0-0 0-0 12. Qe3 Ng4 13. Bxg4 Bxg5 14. f4 Be7 15. Ne2 Qa5 16. Qc3 Bb4 17. Qe3 Bb7 18. a3 Be7 19. e5 c5 20. f5 Qb6 21. Qh3 exf5 22. Bxf5 g6 23. Bg4 Bc6 24. Ng3 Qxb2 25. Nf5 Bg5 26. Qg3 h6 27. h4 Bd8 28. Nxh6+ Kh7 29. Nxf7 Bc7 30. h5 gxh5 31. Bxh5 Qxc2 32. Qh4 Rg8 33. Bg4+ Kg7 34. Qh6# 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.08"]
[Round "6"]
[White "Akkerboom, Jacob"]
[Black "Breukelman, Jan"]
[Result "0-1"]
[ECO "E12"]
[PlyCount "76"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 d5 6. e3 Nbd7 7. cxd5 exd5 8. Bd3 Be7 9. 0-0 Ne4 10. Bxe7 Qxe7 11. Rc1 a6 12. Qc2 Rc8 13. Nd2 Nxd2 14. Qxd2 0-0 15. Bf5 Rcd8 16. Rfe1 Nf6 17. Qc2 g6 18. Bh3 Rd6 19. Ne2 Rc6 20. Qd3 Ne4 21. Nc3 Rd6 22. Nxe4 dxe4 23. Qa3 Rfd8 24. Rc3 a5 25. g3 h5 26. Kg2 c5 27. dxc5 Rd2 28. cxb6 Qf6 29. Rf1 Ba6 30. Rcc1 Bxf1+ 31. Rxf1 Rd1 32. Kg1 Rxf1+ 33. Bxf1 Rd2 34. f4 Qxb6 35. Qe7 Qxe3+ 36. Kh1 Qf3+ 37. Kg1 Qf2+ 38. Kh1 Qxh2# 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "4"]
[White "Akkerboom, Jacob"]
[Black "Wohl, Rami"]
[Result "1/2-1/2"]
[ECO "D53"]
[PlyCount "67"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 Nbd7 7. Nf3 c5 8. dxc5 Nxc5 9. cxd5 Nxd5 10. Bxe7 Kxe7 11. Nxd5+ Qxd5 12. Qxd5 exd5 13. Rc1 b6 14. Be2 Bb7 15. 0-0 Rac8 16. Rfd1 Rhd8 17. Nd4 Ne6 18. Rxc8 Rxc8 19. Nf5+ Kf8 20. Bd3 Rd8 21. Bc2 h5 22. Bb3 g6 23. Nd4 Nxd4 24. Rxd4 Rc8 25. Kf1 Rc1+ 26. Rd1 Rxd1+ 27. Bxd1 Ke7 28. Bf3 Kd6 29. Ke2 Kc5 30. Kd3 a6 31. g3 b5 32. a3 b4 33. axb4+ Kxb4 34. Kc2 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "5"]
[White "Springelkamp, Henriet"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B83"]
[PlyCount "52"]
[EventDate "2002.08.05"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 e6 7. Be2 Be7 8. 0-0 0-0 9. Nb3 a6 10. f3 b5 11. a3 Bb7 12. Qe1 Qc7 13. Qg3 Kh8 14. Rfd1 Ne5 15. Rac1 d5 16. Bd4 Bd6 17. f4 Nc6 18. e5 Nxd4 19. Nxd4 Bc5 20. exf6 gxf6 21. Kh1 Rg8 22. Qh4 Rg6 23. f5 exf5 24. Bh5 Rg5 25. Nf3 Bf2 26. Qh3 Rgg8 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "2"]
[White "Akkerboom, Jacob"]
[Black "Muhren, Bianca"]
[Result "1-0"]
[ECO "D27"]
[BlackElo "2110"]
[PlyCount "137"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nc3 a6 6. Nf3 c5 7. 0-0 b5 8. Be2 Nc6 9. dxc5 Qc7 10. Qc2 Nb4 11. Qb3 Bxc5 12. Bd2 Qe7 13. a4 Rb8 14. axb5 0-0 15. bxa6 Nxa6 16. Qd1 Nc7 17. Na4 Bb4 18. Nd4 Bd7 19. Nc3 e5 20. Nc2 Bd6 21. Qc1 e4 22. Na3 Rb6 23. Nc4 Bxh2+ 24. Kxh2 Ng4+ 25. Bxg4 Rh6+ 26. Kg1 Qh4 27. f3 Bxg4 28. Nxe4 f5 29. Nc3 Rff6 30. fxg4 Qh2+ 31. Kf2 fxg4+ 32. Ke2 Qxg2+ 33. Kd3 Rc6 34. Rg1 Qh3 35. Rh1 Qf3 36. Rxh6 Qf5+ 37. e4 Qf3+ 38. Ne3 Rxh6 39. Qd1 Rd6+ 40. Ncd5 Nxd5 41. Ra8+ Kf7 42. Qxf3+ Nf4+ 43. Kc3 gxf3 44. Nc4 Ne2+ 45. Kc2 Rc6 46. Kd3 Nc1+ 47. Bxc1 Rxc4 48. Be3 Rb4 49. Kc3 Rxe4 50. Bc5 Re5 51. Rf8+ Kg6 52. Bd4 Rg5 53. Rxf3 h5 54. b4 h4 55. Kc4 Rh5 56. Bg1 Kg5 57. b5 Kg4 58. Rb3 h3 59. b6 g5 60. b7 Rh8 61. Bh2 Kh4 62. b8Q Rxb8 63. Rxb8 g4 64. Rg8 Kh5 65. Bg3 h2 66. Bxh2 Kh4 67. Kd4 Kh3 68. Bc7 Kh4 69. Ke3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "3"]
[White "Brandenburg, Daan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B80"]
[PlyCount "41"]
[EventDate "2002.08.05"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nb3 e6 7. Bd3 Be7 8. 0-0 0-0 9. f4 a6 10. a3 Qc7 11. Qf3 Rd8 12. Bd2 Rb8 13. Rae1 b5 14. e5 dxe5 15. fxe5 Nxe5 16. Rxe5 Bd6 17. Rg5 Bxh2+ 18. Kh1 h6 19. Rxg7+ Kxg7 20. Qxf6+ Kf8 21. Qxh6+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2002.08.05"]
[Round "1"]
[White "Berendsen, David"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "27"]
[EventDate "2002.08.05"]
[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 c5 2. Nc3 Nc6 3. Nf3 d6 4. g3 Nf6 5. Bg2 e6 6. 0-0 Be7 7. d3 0-0 8. Be3 Qc7 9. Qd2 a6 10. Ne2 d5 11. exd5 exd5 12. c3 Rd8 13. Qc2 b6 14. Nf4 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.04"]
[Round "9.12"]
[White "Van Splunter, Arjen"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "63"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Bc4 e6 7. Bxd5 exd5 8. Ne2 dxe5 9. dxe5 Nc6 10. Bf4 Be6 11. 0-0 Bc5 12. Nbc3 a6 13. Rc1 Ba7 14. Qc2 d4 15. Rfd1 0-0 16. Ne4 Qe7 17. Qd3 Rfd8 18. Bg5 Nxe5 19. Bxe7 Nxd3 20. Rxd3 Re8 21. Bc5 Bf5 22. f3 Bxc5 23. Rxc5 Bxe4 24. fxe4 Rxe4 25. Nxd4 g6 26. Nf3 Rae8 27. Rd7 Rb4 28. Rc2 Rb5 29. Kf2 Kg7 30. b3 b6 31. Nd4 Rbe5 32. Rcc7 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "8.10"]
[White "Akkerboom, Jacob"]
[Black "Welling, Wouter"]
[Result "0-1"]
[ECO "D85"]
[PlyCount "84"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 Nc6 9. d5 Ne5 10. Nxe5 Bxe5 11. Qb3 a6 12. Bh6 Qa5 13. Rc1 b5 14. Be2 Qc7 15. c4 b4 16. h3 a5 17. 0-0 a4 18. Qd1 Bd7 19. Rb1 Qc8 20. f4 Bd4+ 21. Kh2 a3 22. Qd3 Qa6 23. Bd1 Bb2 24. Bb3 f6 25. Rbe1 Ba4 26. Rf3 Bc3 27. Rb1 Bb2 28. Qe2 Qd6 29. Kh1 Bxb3 30. Rxb3 Bc3 31. Rf1 Kd7 32. Qg4+ Kc7 33. Qh4 Rhe8 34. Rf2 Be1 35. e5 Qa6 36. e6 Bxf2 37. Qxf2 Qxc4 38. Qf3 Red8 39. d6+ Kxd6 40. f5 Kc7 41. Bf4+ Kb6 42. Qg3 Rac8 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "7.10"]
[White "Gorissen, Hugo"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "85"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. cxd4 d6 7. exd6 Qxd6 8. Nbd2 Qe6+ 9. Qe2 Ndb4 10. Ne4 f5 11. d5 Qxe4 12. dxc6 Nc2+ 13. Kd1 Nxa1 14. Qxe4 fxe4 15. cxb7 Bxb7 16. Bb5+ Kf7 17. Ne5+ Ke6 18. Bf4 g5 19. Bd7+ Kd5 20. Bg3 Bg7 21. Nf7 Rhf8 22. Nxg5 Bc8 23. Ba4 h6 24. Nxe4 Bf5 25. Nc3+ Bxc3 26. bxc3 Kc4 27. Kc1 Rab8 28. Bxb8 Rxb8 29. Kd2 Rb1 30. Rxb1 Bxb1 31. Kc1 Bxa2 32. Kb2 Bb3 33. Bd7 Bd1 34. Kxa1 Kxc3 35. Kb1 Kd3 36. Bb5+ Kd4 37. Kc1 Bg4 38. Kd2 a5 39. f3 Be6 40. h4 Kc5 41. Bd3 a4 42. g4 Kd4 43. Bh7 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.02"]
[Round "6.11"]
[White "Akkerboom, Jacob"]
[Black "Duvnjak, Zdravko"]
[Result "1-0"]
[ECO "E87"]
[PlyCount "83"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 a5 8. Nge2 Na6 9. Qd2 Nd7 10. 0-0-0 Ndc5 11. h4 h5 12. g3 Qe8 13. Bh3 Nb4 14. Kb1 f5 15. Rdg1 fxe4 16. fxe4 Bg4 17. Bxg4 hxg4 18. Rf1 Qe7 19. Nc1 Rxf1 20. Rxf1 Rf8 21. Qe2 Rxf1 22. Qxf1 Qf8 23. Qxf8+ Bxf8 24. Bxc5 dxc5 25. a3 Na6 26. Nd3 Bd6 27. Nd1 Nb8 28. Ne3 Nd7 29. Nxg4 Kg7 30. Kc2 g5 31. h5 b6 32. Kb3 Kf7 33. Ka4 Kg7 34. Kb5 Nf6 35. Nxf6 Kxf6 36. g4 Kf7 37. Kc6 Ke8 38. Ne1 Kd8 39. Nf3 Be7 40. h6 Bf6 41. h7 Kc8 42. Nxg5 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "4.11"]
[White "Akkerboom, Jacob"]
[Black "Simenon, Jozef"]
[Result "1/2-1/2"]
[ECO "A57"]
[PlyCount "81"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 bxc4 5. Nc3 g6 6. e4 d6 7. Bxc4 Bg7 8. h3 0-0 9. Qe2 Nbd7 10. 0-0 Nb6 11. Bd3 Qc7 12. Be3 Bd7 13. Rac1 a5 14. Rfd1 Rfb8 15. Bf4 Qb7 16. Rd2 Na4 17. Nd1 Bb5 18. b3 Bxd3 19. Qxd3 Nb6 20. Ne3 Qa6 21. e5 Qxd3 22. Rxd3 Ne8 23. Nc4 Nxc4 24. Rxc4 Rb6 25. Re4 Bf8 26. exd6 exd6 27. Nd2 a4 28. Rxa4 Rxa4 29. bxa4 Rb4 30. g3 Rxa4 31. Rb3 Ra8 32. Ne4 f5 33. Nc3 Ra7 34. Rb8 Kf7 35. Rb6 h6 36. h4 Ra3 37. Nb5 Rxa2 38. Nxd6+ Nxd6 39. Bxd6 Bxd6 40. Rxd6 Rd2 41. Kg2 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "5.10"]
[White "De Wit, Tex"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "65"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. 0-0 Nf6 5. c4 e6 6. Nc3 Be7 7. b3 d6 8. Bb2 0-0 9. d4 cxd4 10. Nxd4 Bxg2 11. Kxg2 a6 12. e4 Qc7 13. Qe2 Nbd7 14. Rad1 Rfe8 15. Rfe1 Red8 16. Nc2 Rac8 17. Ne3 Qc6 18. f3 Nc5 19. Rd2 Rd7 20. Red1 Rcd8 21. Rc2 Rc8 22. b4 Nb7 23. b5 Qc7 24. bxa6 Na5 25. Nb5 Qb8 26. Ba3 Rcd8 27. Rcd2 Nc6 28. Nc2 Ne8 29. Nb4 Nxb4 30. Bxb4 f6 31. Nd4 Rc8 32. Nxe6 Qa8 33. c5 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "3.9"]
[White "Akkerboom, Jacob"]
[Black "Bugel, Jeroen"]
[Result "0-1"]
[ECO "E85"]
[PlyCount "66"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Be3 Nbd7 7. Nge2 e5 8. d5 Ne8 9. g4 Nc5 10. Qd2 a5 11. Nc1 f5 12. gxf5 gxf5 13. Nd3 b6 14. 0-0-0 Nf6 15. Bg5 Qe8 16. Nxc5 bxc5 17. Bd3 Qh5 18. f4 h6 19. Bxf6 Bxf6 20. Kb1 Bd7 21. Qc2 Rab8 22. exf5 exf4 23. Rdf1 f3 24. Be4 Be5 25. Rxf3 Kh8 26. Rg1 Rg8 27. Rg6 Bxf5 28. Bxf5 Qxf3 29. Rxh6+ Kg7 30. Rh7+ Kf8 31. Bg6 Qf1+ 32. Nd1 Rxg6 33. Rh8+ Bxh8 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "2.12"]
[White "Rothuis, Vincent"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B51"]
[PlyCount "74"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Be2 Ngf6 6. Nc3 b5 7. d3 Bb7 8. a4 b4 9. Nb1 e6 10. b3 Be7 11. Bb2 Qc7 12. Nbd2 0-0 13. Re1 d5 14. exd5 exd5 15. d4 Ne4 16. Bd3 Ndf6 17. Ne5 cxd4 18. Ndf3 Nc3 19. Bxc3 dxc3 20. Ng5 h6 21. Ngf3 Ne4 22. Ng4 Bc5 23. Ne3 Rfe8 24. Bxe4 dxe4 25. Nh4 Rad8 26. Qg4 Kh7 27. Rad1 Rd2 28. Rxd2 cxd2 29. Rd1 Bxe3 30. fxe3 Qxc2 31. Nf5 Qc3 32. Qe2 Rd8 33. Nd4 Rxd4 34. exd4 Qxd4+ 35. Qf2 e3 36. Qf5+ Kg8 37. Kf1 Be4 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "2002.04.29"]
[Round "1.11"]
[White "Van Kerkhof, David"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "B83"]
[PlyCount "49"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e6 7. Be3 Be7 8. Qd2 Qc7 9. f3 a6 10. a4 0-0 11. g4 Rd8 12. h4 Bd7 13. g5 Nh5 14. Rg1 g6 15. f4 Qc8 16. Bxh5 gxh5 17. Nb3 Nb4 18. Bb6 Re8 19. 0-0-0 Qc6 20. a5 Rac8 21. Rg2 Qc4 22. Kb1 Bd8 23. Qxd6 Bxb6 24. axb6 Red8 25. Na5 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.11"]
[Round "9"]
[White "Akkerboom, Jacob"]
[Black "Brandenburg, Daan"]
[Result "0-1"]
[ECO "A59"]
[PlyCount "60"]
[EventDate "2001.08.06"]
[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 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. e4 d6 8. Nf3 Bxf1 9. Kxf1 Bg7 10. g3 0-0 11. Kg2 Nbd7 12. h3 Qc7 13. Qc2 Rfb8 14. Re1 Ne8 15. Bg5 h6 16. Bd2 Qa5 17. Re2 Kh7 18. Be1 Nc7 19. a4 Qa7 20. Ra3 Qb7 21. Nd2 Qxb2 22. Nc4 Qxc2 23. Rxc2 Rb4 24. Nb2 Bxc3 25. Bxc3 Rxe4 26. f3 Re3 27. Kf2 Nxd5 28. Nd1 Re6 29. Bd2 N5b6 30. Nc3 d5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.10"]
[Round "8"]
[White "Van Duijvenbode, Coen"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "A75"]
[PlyCount "84"]
[EventDate "2001.08.06"]
[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 c5 2. d5 Nf6 3. c4 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Be2 a6 8. a4 Bg7 9. Nf3 Bg4 10. h3 Bxf3 11. Bxf3 Nbd7 12. Bf4 Qe7 13. 0-0 0-0 14. Re1 Ne5 15. Bxe5 Qxe5 16. Qc2 Nd7 17. Bg4 Qe7 18. f4 Rae8 19. Re2 Bd4+ 20. Kh2 g5 21. Bxd7 Qxd7 22. fxg5 Re5 23. Rf1 Rxg5 24. g4 h5 25. Rf5 Qe7 26. gxh5 Rxf5 27. exf5 Qh4 28. Qd3 Kh8 29. Ne4 Be5+ 30. Kh1 Qf4 31. Rf2 Qc1+ 32. Qf1 Qe3 33. Qg2 Rg8 34. Qf3 Qc1+ 35. Rf1 Qxb2 36. Qf2 Qb3 37. Qf3 Qxa4 38. Qe3 Bg7 39. f6 Bf8 40. Nxd6 Qd7 41. Ne4 Qxd5 42. Kh2 Qxh5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.10"]
[Round "7"]
[White "Van Splunter, Arjen"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "42"]
[EventDate "2001.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 0-0 5. c4 d5 6. a3 Ba5 7. Nf3 Bg4 8. Qb3 Bb6 9. Qb2 Nbd7 10. Bc3 c6 11. cxd5 cxd5 12. Bb4 Nh5 13. Ne5 Ndf6 14. h3 Be6 15. g4 d4 16. Bb5 Qd5 17. Rg1 Qxb5 18. gxh5 a5 19. Rxg7+ Kh8 20. Rg5 Ne4 21. Bxf8 Qxb2 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.09"]
[Round "6"]
[White "Akkerboom, Jacob"]
[Black "Van Nooten, Stijn"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "73"]
[EventDate "2001.08.06"]
[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 d5 2. c4 e6 3. Nc3 c5 4. dxc5 d4 5. Ne4 Bxc5 6. Nxc5 Qa5+ 7. Qd2 Qxc5 8. e3 dxe3 9. Qxe3 Qb4+ 10. Qd2 Nc6 11. a3 Qxd2+ 12. Bxd2 Nf6 13. Bd3 e5 14. Ne2 Be6 15. b3 Rd8 16. Bc2 Nd4 17. Nxd4 exd4 18. Bg5 d3 19. Bxf6 gxf6 20. Bb1 0-0 21. Kd2 Rfe8 22. Kc3 Bf5 23. Rd1 Re2 24. Ra2 Rde8 25. Rad2 Rxd2 26. Rxd2 Re2 27. Bxd3 Bxd3 28. Kxd3 Re7 29. c5 Kf8 30. b4 Re6 31. Kc4 Ke7 32. Rd3 a6 33. Re3 Rxe3 34. fxe3 Ke6 35. b5 axb5+ 36. Kxb5 Ke5 37. c6 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.08"]
[Round "5"]
[White "Akkerboom, Jacob"]
[Black "Ootes, Lennart"]
[Result "1-0"]
[ECO "D15"]
[PlyCount "73"]
[EventDate "2001.08.06"]
[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 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bg4 5. Bg5 e6 6. e3 Nbd7 7. Be2 Bb4 8. a3 Bxc3+ 9. bxc3 Qc7 10. 0-0 0-0 11. Qc2 Ne4 12. Bf4 Qd8 13. Rfb1 Qc8 14. Bd3 Bxf3 15. gxf3 Nef6 16. e4 Nb6 17. c5 Nbd7 18. Bg5 Qc7 19. e5 Nh5 20. Bxh7+ Kh8 21. Bd3 b6 22. cxb6 axb6 23. f4 c5 24. f5 cxd4 25. Qe2 g6 26. fxg6 Ng7 27. Qg4 Kg8 28. Qh4 fxg6 29. Bxg6 Nh5 30. Bxh5 Nxe5 31. Qg3 Qg7 32. cxd4 Nc6 33. Rxb6 Nxd4 34. Rb7 Ne2+ 35. Bxe2 Qxb7 36. Bf6+ Kh7 37. Bd3+ 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.08"]
[Round "4"]
[White "Nabuurs, Mart"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "82"]
[EventDate "2001.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 Nf6 5. g3 e6 6. Bg2 Be7 7. 0-0 0-0 8. d3 a6 9. Be3 Qc7 10. a3 Rd8 11. Bf2 Ng4 12. Qd2 Nxf2 13. Qxf2 Bf6 14. Qd2 Rb8 15. Rab1 b5 16. Ne2 Bb7 17. Rfc1 d5 18. exd5 Rxd5 19. Nc3 Rd7 20. Ne4 Be7 21. Qe3 Nd4 22. Ned2 Bf6 23. Kf1 Rbd8 24. Ne4 Be7 25. Ne5 Nf5 26. Qe2 Rd4 27. c3 Ra4 28. c4 f6 29. Nf3 Nd4 30. Nxd4 Rxd4 31. Nc3 Ra5 32. b4 Bxg2+ 33. Kxg2 Qc6+ 34. Kg1 Rxa3 35. cxb5 axb5 36. Ne4 c4 37. Nf2 c3 38. Qe3 Rxb4 39. Rxb4 Bxb4 40. Ne4 c2 41. Qd4 Qd5 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.07"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Ris, Robert"]
[Result "0-1"]
[ECO "D91"]
[PlyCount "106"]
[EventDate "2001.08.06"]
[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 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. cxd5 Nxg5 7. Nxg5 e6 8. Qd2 exd5 9. Qe3+ Kf8 10. Qf4 Bf6 11. h4 h6 12. Nxd5 hxg5 13. Qxf6 Qxf6 14. Nxf6 Rxh4 15. Rxh4 gxh4 16. Nd5 Na6 17. e3 c6 18. Bxa6 cxd5 19. Be2 Ke7 20. Kd2 Be6 21. Bf3 g5 22. Rh1 Kd6 23. Be2 Rh8 24. f3 f5 25. Ke1 g4 26. f4 Bd7 27. Bf1 Kc6 28. Kd2 Kb6 29. b3 Bb5 30. Bxb5 Kxb5 31. a3 a5 32. Kc3 a4 33. b4 h3 34. gxh3 Rxh3 35. Re1 Rh2 36. Ra1 Rf2 37. Kd3 g3 38. Kc3 g2 39. Rg1 Ra2 40. e4 Rxa3+ 41. Kb2 Rb3+ 42. Ka2 dxe4 43. Rxg2 Rf3 44. d5 e3 45. Rg7 Rxf4 46. Rxb7+ Kc4 47. d6 Rd4 48. Re7 Kd3 49. d7 e2 50. Ka3 Kd2 51. Kxa4 e1Q 52. Rxe1 Kxe1 53. Kb5 Rxd7 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.07"]
[Round "2"]
[White "Noten, Rob"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "A08"]
[PlyCount "62"]
[EventDate "2001.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. g3 c5 2. Bg2 d5 3. d3 Nc6 4. Nf3 e5 5. 0-0 f6 6. Nbd2 Be6 7. b3 Nge7 8. Bb2 Ng6 9. e3 Be7 10. d4 cxd4 11. exd4 e4 12. Ne1 f5 13. Rc1 Bf6 14. c3 0-0 15. Nb1 Bg5 16. Rc2 f4 17. c4 f3 18. Nxf3 exf3 19. Bxf3 Bf5 20. Bxd5+ Kh8 21. Re2 Qd7 22. Kh1 Rae8 23. Rxe8 Rxe8 24. Bxc6 Qxc6+ 25. d5 Qd7 26. Nd2 Qe7 27. Nf3 Bg4 28. Kg2 Qe4 29. h3 Bh5 30. g4 Nh4+ 31. Kg3 Qxf3+ 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2001.08.06"]
[Round "1"]
[White "Akkerboom, Jacob"]
[Black "Boone, Iza"]
[Result "1-0"]
[ECO "D24"]
[PlyCount "31"]
[EventDate "2001.08.06"]
[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 d5 2. c4 dxc4 3. e3 e6 4. Bxc4 Nf6 5. Nc3 Bb4 6. Nf3 Bxc3+ 7. bxc3 0-0 8. 0-0 Nc6 9. Qc2 Na5 10. Bd3 b6 11. e4 c5 12. e5 g6 13. Bg5 c4 14. Bxf6 cxd3 15. Qd2 Qe8 16. Qh6 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Spoelman, Wouter"]
[Result "1-0"]
[ECO "C32"]
[PlyCount "37"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 8. Nc3 Qe7 9. Be3 Nxc3 10. Bxc5 Nxe2 11. Bxe7 Nxf4 12. Ba3 Nd7 13. 0-0-0 0-0-0 14. Rd4 Ng6 15. g4 Bxg4 16. Rxg4 Nf6 17. Rd4 Nxd5 18. Bh3+ Kb8 19. Rhd1 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "8"]
[White "Akkerboom, Jacob"]
[Black "Tan, Matthew"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "49"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 Nc6 7. 0-0 0-0-0 8. Be3 Bxf3 9. Bxf3 Nxd4 10. Bxd4 e5 11. Bg4+ Nxg4 12. Qxg4+ Kb8 13. Be3 g6 14. Rad1 Bd6 15. Qa4 Qxa4 16. Nxa4 f5 17. Bc5 h5 18. Bxd6 cxd6 19. Nc3 g5 20. Rd5 a6 21. Rfd1 Kc7 22. a4 b6 23. a5 b5 24. Na2 g4 25. Nb4 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "6"]
[White "Akkerboom, Jacob"]
[Black "Van Dooren, Dirk"]
[Result "1-0"]
[ECO "C13"]
[PlyCount "97"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 0-0 8. c3 b6 9. Bd3 Ba6 10. Nxf6+ Qxf6 11. Bxa6 Nxa6 12. Qe2 Nb8 13. Qe4 c6 14. Ne5 Qf5 15. Qxf5 exf5 16. 0-0-0 f6 17. Nc4 g6 18. Rhe1 Na6 19. Re6 c5 20. d5 Rad8 21. d6 Rfe8 22. Rde1 Rxe6 23. Rxe6 Rd7 24. Rxf6 Kg7 25. Ne5 Kxf6 26. Nxd7+ Ke6 27. Nf8+ Kxd6 28. Nxh7 Ke7 29. Ng5 Nc7 30. c4 Ne8 31. f4 Nf6 32. Kd2 Nd7 33. Nf3 Nf6 34. Ne5 Ne4+ 35. Ke3 Kf6 36. Nc6 a5 37. Ne5 g5 38. Nd7+ Kg6 39. fxg5 Nd6 40. Nxb6 Kxg5 41. b3 f4+ 42. Kf3 Nf5 43. Nd7 Nd4+ 44. Ke4 Ne2 45. Nxc5 Nc3+ 46. Kd4 Nxa2 47. Nd3 Kf5 48. c5 Ke6 49. h4 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "4"]
[White "Akkerboom, Jacob"]
[Black "Van Hoeve, Ab"]
[Result "1/2-1/2"]
[ECO "B80"]
[PlyCount "48"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2 Nbd7 8. f3 b5 9. 0-0-0 Bb7 10. g4 Nb6 11. g5 Nfd7 12. Qg2 Nc5 13. Ndxb5 Nxe4 14. fxe4 axb5 15. Bxb5+ Nd7 16. Bf4 Qb6 17. Qd2 0-0-0 18. Be3 Qa5 19. Bxd7+ Rxd7 20. Rhf1 Ba6 21. Rf3 Rb7 22. Bd4 d5 23. exd5 Qa3 24. Na4 Qxa4 1/2-1/2

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "7"]
[White "Blees, Enrico"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "59"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 dxc6 7. Nc3 Be6 8. Na4 Rd8 9. Bd3 Bd4 10. 0-0 Ne7 11. c3 Bb6 12. Nxb6 cxb6 13. Qe3 0-0 14. f4 Bc8 15. Bc2 Rfe8 16. Qg3 Qg6 17. Qh4 Qd6 18. Be3 Ng6 19. Qg3 c5 20. Rae1 Qc7 21. e5 Nf8 22. Bc1 Bd7 23. f5 Bc6 24. Bf4 Qd7 25. Bh6 g6 26. e6 fxe6 27. fxg6 hxg6 28. Bxg6 Nxg6 29. Qxg6+ Kh8 30. Rf7 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "5"]
[White "Breukelman, Jan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "A24"]
[PlyCount "107"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. d3 e5 8. Rb1 Nh5 9. b4 f5 10. Bd2 h6 11. Qb3 Kh8 12. e3 g5 13. d4 f4 14. exf4 gxf4 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Ne4 Bf5 18. Bc3 Re8 19. Rbe1 Qd7 20. Bxe5+ Rxe5 21. Qc3 Qg7 22. c5 d5 23. Nd2 Rae8 24. Rxe5 Qxe5 25. Qxe5+ Rxe5 26. Nf3 Re8 27. Nd4 Be4 28. Re1 fxg3 29. hxg3 c6 30. Bxe4 Rxe4 31. Rxe4 dxe4 32. Nf5 Kh7 33. Nd6 e3 34. fxe3 Nxg3 35. Kf2 Nh5 36. Nxb7 Nf6 37. Nd8 a5 38. a3 Ne4+ 39. Kg2 axb4 40. axb4 Kg6 41. Nxc6 Kf5 42. Nd4+ Ke5 43. c6 Kd5 44. b5 Kc5 45. Kf3 Nd6 46. Kf4 Nc8 47. Ke5 Kb6 48. Ke6 Kc7 49. Kf6 Nd6 50. Kg6 Nxb5 51. Nxb5+ Kxc6 52. Nc3 Kd6 53. Kxh6 Ke5 54. e4 1-0

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "1"]
[White "Buegel, J."]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "C32"]
[PlyCount "32"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Bc4 0-0 8. Rf1 Re8 9. Be2 Bg4 10. Nbd2 Nxd2 11. Qxd2 Bxf3 12. Rxf3 Qh4+ 13. Rg3 Qxh2 14. Qc3 Bb4 15. Rxg7+ Kh8 16. Qxb4 Qg1+ 0-1

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "2"]
[White "Schwartz, M1111"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "63"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 dxc6 7. Nc3 Be6 8. Na4 Rd8 9. Bd3 Bd4 10. 0-0 Ne7 11. c3 Bb6 12. Nxb6 axb6 13. Qe3 Qe5 14. Bc2 Bc4 15. Re1 0-0 16. Qg5 Qxg5 17. Bxg5 f6 18. Be3 Ng6 19. Rad1 Ne5 20. b3 Be6 21. Rxd8 Rxd8 22. Rd1 Rxd1+ 23. Bxd1 Kf7 24. f4 Ng4 25. Bd2 Bd7 26. h3 Nh6 27. Kf2 Ke7 28. Bc2 Nf7 29. Kf3 h6 30. c4 c5 31. Bc3 b5 32. Bd3 1/2-1/2

[Event "NED-ch U14"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "9"]
[White "Van der Lest, Menno"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "E88"]
[PlyCount "80"]
[EventDate "2001.??.??"]
[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. f3 0-0 6. Be3 e5 7. d5 c6 8. Qd2 cxd5 9. cxd5 Nh5 10. Bd3 a6 11. a4 Nd7 12. Nge2 Nf4 13. 0-0 Nxe2+ 14. Bxe2 f5 15. b4 f4 16. Bf2 b6 17. Rfc1 Nf6 18. Nb1 Rb8 19. Na3 g5 20. Nc4 Ne8 21. b5 Rf7 22. a5 axb5 23. Nxb6 Ba6 24. Qb4 Nc7 25. Rab1 Rb7 26. Rc2 h5 27. Rbc1 Bf8 28. Na8 Qxa8 29. Bb6 Qb8 30. Rc6 Rd7 31. R1c3 Be7 32. Bxc7 Rdxc7 33. Rxa6 Rxc3 34. Qxc3 b4 35. Qb3 Kg7 36. h3 Bd8 37. Kh2 h4 38. Bd1 Rb5 39. Qa4 Bc7 40. Be2 Rb7 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Akkerboom, Jacob"]
[Black "Tan, Matthew"]
[Result "1-0"]
[ECO "E85"]
[PlyCount "95"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 Nc6 8. d5 Ne7 9. Qd2 Nd7 10. g4 Nb6 11. Ng3 f5 12. gxf5 gxf5 13. Rg1 f4 14. Nh5 fxe3 15. Rxg7+ Kh8 16. Qxe3 Nf5 17. Qg5 Qxg5 18. Rxg5 Nd4 19. 0-0-0 Nxf3 20. Rg2 Nd4 21. Bd3 Bd7 22. Ne2 Nxe2+ 23. Bxe2 Rae8 24. Bg4 Bxg4 25. Rxg4 Re7 26. Rdg1 Nxc4 27. Nf6 Ree8 28. Nxe8 Rxe8 29. Rg7 c6 30. dxc6 bxc6 31. Rxa7 d5 32. exd5 cxd5 33. Rgg7 Nd6 34. Rxh7+ Kg8 35. Rag7+ Kf8 36. Rd7 Kg8 37. Rhg7+ Kf8 38. Rh7 Kg8 39. Rxd6 Kxh7 40. Rxd5 Kg6 41. a4 Kf5 42. a5 Kf4 43. a6 e4 44. a7 e3 45. Kd1 e2+ 46. Ke1 Kf3 47. Ra5 Rc8 48. a8Q+ 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Akkerboom, Jacob"]
[Black "De Wit, Tex"]
[Result "1/2-1/2"]
[ECO "A42"]
[PlyCount "55"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 f5 5. f3 fxe4 6. fxe4 Nc6 7. Be3 Nf6 8. h3 e5 9. d5 Nb8 10. Nge2 c6 11. Qd2 cxd5 12. cxd5 0-0 13. g4 Qa5 14. Ng3 Nbd7 15. 0-0-0 Nc5 16. g5 Ne8 17. Be2 Bd7 18. Kb1 Rc8 19. h4 Na4 20. Nxa4 Qxa4 21. h5 Nc7 22. hxg6 hxg6 23. Rc1 Nb5 24. Rxc8 Rxc8 25. Bd1 Qa6 26. Ka1 Nd4 27. Qh2 Bb5 28. Qh7+ 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Van den Berg, Erik"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "A30"]
[PlyCount "76"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd2 Nf6 8. a3 Be7 9. e4 d5 10. Qc2 d4 11. Na2 c5 12. b4 e5 13. Be2 Be6 14. 0-0 0-0 15. Rab1 Qc7 16. Nc1 Rac8 17. b5 Ne8 18. Nd3 f5 19. Nb2 Nd6 20. f3 fxe4 21. fxe4 Bf6 22. a4 Rb8 23. a5 Nb7 24. a6 Nd6 25. Ra1 Qf7 26. Rac1 Qg6 27. Bf3 Bg5 28. Rf2 Bxd2 29. Rxd2 Rxf3 30. Nd3 Re3 31. Nxe5 Qxe4 32. Qxe4 Nxe4 33. Rb2 Nc3 34. Rcc2 Rxe5 35. b6 Rxb6 36. Rxb6 axb6 37. a7 Re1+ 38. Kf2 Ra1 0-1

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Offringa, Tjaart Jan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "A70"]
[PlyCount "55"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 c5 3. d5 Nf6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 a6 8. a4 Bg4 9. h3 Bxf3 10. Qxf3 Nbd7 11. Bf4 Qe7 12. Bd3 Bg7 13. 0-0 Nh5 14. Bh2 Ne5 15. Qe3 Nxd3 16. Qxd3 0-0 17. Rfe1 Rae8 18. Rab1 f5 19. f3 Qh4 20. Bxd6 Bd4+ 21. Kh1 f4 22. Qe2 Bf2 23. Rec1 Rf5 24. exf5 Rxe2 25. fxg6 Ng3+ 26. Kh2 Nf1+ 27. Rxf1 Bg1+ 28. Rxg1 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Akkerboom, Jacob"]
[Black "Volkers, Annemarie"]
[Result "1-0"]
[ECO "D52"]
[PlyCount "113"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 c6 2. c4 d5 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qb6 7. Qc2 c5 8. Bxf6 Nxf6 9. cxd5 Nxd5 10. Bb5+ Bd7 11. Bxd7+ Kxd7 12. Ne5+ Kc7 13. Nxd5+ exd5 14. Nxf7 Qb4+ 15. Qd2 Qxd2+ 16. Kxd2 Rg8 17. dxc5 Bxc5 18. Ng5 Bb4+ 19. Ke2 h6 20. Ne6+ Kd6 21. Nd4 a6 22. Rhd1 g6 23. Nb3 Ke6 24. Rd4 Be7 25. Rad1 Rgd8 26. e4 dxe4 27. Nc5+ Kf5 28. g4+ Kf6 29. Nxe4+ Kg7 30. Rd7 Kf8 31. Rxd8+ Bxd8 32. Nc5 b6 33. Rxd8+ Rxd8 34. Ne6+ Ke7 35. Nxd8 Kxd8 36. Ke3 Ke7 37. Ke4 Ke6 38. f4 h5 39. f5+ gxf5+ 40. gxf5+ Kf6 41. Kf4 h4 42. Kg4 h3 43. Kxh3 Kxf5 44. Kh4 Kf4 45. Kh5 Kf5 46. Kh6 Kf6 47. b4 a5 48. b5 a4 49. a3 Kf5 50. Kg7 Kg4 51. Kf6 Kh3 52. Ke6 Kxh2 53. Kd6 Kg3 54. Kc6 Kf4 55. Kxb6 Ke5 56. Kc5 Ke6 57. Kc6 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Tan, Richard"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "63"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Bg5 Be7 6. h3 Nc6 7. Nf3 Nb4 8. 0-0 Nxd3 9. Qxd3 0-0 10. Nc3 Be6 11. Rfe1 Re8 12. Re3 Rc8 13. Rae1 c5 14. Bh4 Rc6 15. Na4 c4 16. Qd1 b5 17. Nc3 b4 18. Ne2 Kf8 19. Nf4 Bf5 20. g4 Bc8 21. Ne5 Rd6 22. Qf3 Bb7 23. g5 Qc8 24. gxf6 Bxf6 25. Bxf6 Rxf6 26. Neg6+ hxg6 27. Rxe8+ Qxe8 28. Rxe8+ Kxe8 29. Qe3+ Kd8 30. Qe5 Kc8 31. Qe8+ Kc7 32. Ng2 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Akkerboom, Jacob"]
[Black "Van Trigt, Steven"]
[Result "1-0"]
[ECO "D50"]
[PlyCount "41"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. cxd5 Bb4 7. Qa4+ Nd7 8. Qxb4 Nb6 9. e3 Bd7 10. Rc1 a6 11. d6 Qd8 12. Ne4 Bc6 13. dxc7 Qxc7 14. Nd6+ Kd7 15. Nxf7 Nd5 16. Qc5 Rac8 17. Nf3 b6 18. N3e5+ Ke8 19. Nd6+ Kf8 20. Qxc6 Qxc6 21. Rxc6 1-0

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Zomer, Bart"]
[Result "1/2-1/2"]
[ECO "D15"]
[PlyCount "55"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. Qb3 Qb6 6. Qxb6 axb6 7. cxd5 Nxd5 8. Nxd5 cxd5 9. Bd2 e6 10. e3 Nc6 11. Bb5 Bd6 12. 0-0 0-0 13. Rfc1 Rfc8 14. Bc3 h6 15. a3 Kh7 16. h3 f6 17. Nh4 Bg6 18. Nxg6 Kxg6 19. Rd1 Kf7 20. Rac1 Na7 21. Bd3 Rc6 22. e4 Rac8 23. exd5 exd5 24. Be2 Ke7 25. Rc2 Rd8 26. g3 Bb8 27. Bf3 Nb5 28. Rdc1 1/2-1/2

[Event "NED-ch U14 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Muhren, Yvette"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "C10"]
[PlyCount "56"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nc6 5. Nf3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. Be3 Bf5 9. Qd2 Re8 10. Rfe1 Bb4 11. a3 Ne4 12. Qd3 Ba5 13. b4 Nxb4 14. axb4 Bxb4 15. Nxe4 Bxe1 16. Nxe1 Bxe4 17. Qb3 b6 18. Bb5 Re6 19. Qc3 Qd6 20. f3 Bf5 21. g3 c6 22. Ba4 Rae8 23. Bf4 Qe7 24. Ng2 Bh3 25. Qd2 Re2 26. Qd3 Rxg2+ 27. Kh1 Qe1+ 28. Rxe1 Rxe1+ 0-1

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.06"]
[Round "9"]
[White "Luteijn, Stefan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C11"]
[PlyCount "68"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nce2 c5 6. c3 Nc6 7. Nf3 Be7 8. Ng3 0-0 9. Bd3 cxd4 10. cxd4 Qb6 11. 0-0 f6 12. Re1 fxe5 13. dxe5 Nc5 14. Be3 Qxb2 15. Bxc5 Bxc5 16. Re2 Qb6 17. Rb1 Qc7 18. Bxh7+ Kxh7 19. Qc2+ Kg8 20. Qxc5 Bd7 21. Qc2 Qd8 22. Rxb7 Rxf3 23. gxf3 Nd4 24. Qc7 Nxe2+ 25. Nxe2 Qxc7 26. Rxc7 Bc8 27. Nd4 a5 28. Kg2 a4 29. a3 Kh7 30. Kg3 Kg6 31. Kf4 Kh6 32. Rc6 Rb8 33. Nxe6 Bxe6 34. Rxe6+ Kh7 1-0

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "7"]
[White "Akkerboom, Jacob"]
[Black "Flierman, Robert"]
[Result "1-0"]
[ECO "E85"]
[PlyCount "97"]
[EventDate "2000.05.01"]
[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 d6 4. e4 Bg7 5. f3 0-0 6. Be3 e5 7. Nge2 Nbd7 8. d5 Re8 9. g4 Nb6 10. Ng3 Nfd7 11. Qd2 f6 12. g5 Qe7 13. 0-0-0 Nf8 14. Bd3 c5 15. h4 Qf7 16. Rdf1 f5 17. f4 exf4 18. Bxf4 Rd8 19. exf5 Bxf5 20. Nxf5 gxf5 21. Bg3 Bd4 22. Nb5 Qe7 23. Nxd4 cxd4 24. Rxf5 Rac8 25. b3 Ng6 26. Re1 Qg7 27. Bc2 Ne7 28. Rf6 Nexd5 29. cxd5 Nxd5 30. Rxd6 Rxd6 31. Bxd6 Qd7 32. Bf4 Qf5 33. Re8+ Kf7 34. Rxc8 Qxc8 35. Qxd4 Qe6 36. Be4 Nxf4 37. Qc4 Qxc4+ 38. bxc4 b6 39. Bxh7 Kg7 40. Be4 Ne2+ 41. Kd2 Ng3 42. Bd3 Nh5 43. Ke3 Kf7 44. Bf5 Ng3 45. Bg4 a5 46. Kd4 Nf1 47. c5 b5 48. c6 Ne3 49. Kxe3 1-0

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "8"]
[White "Van Hoeve, Ab"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "25"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. h3 Ne7 6. Nf3 0-0 7. 0-0 c6 8. c3 Bf5 9. Re1 Bxd3 10. Qxd3 Nd7 11. Bg5 Re8 12. Nbd2 Nf8 13. Bxe7 1/2-1/2

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.04"]
[Round "6"]
[White "De Groote, Jesper"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "162"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Qb3 Qxb3 7. axb3 cxd4 8. cxd4 Nge7 9. Bb5 Bd7 10. Nc3 a6 11. Bg5 Rc8 12. Bd3 Nb4 13. Kd2 Nxd3 14. Kxd3 h6 15. Bd2 Nc6 16. Na2 a5 17. Rac1 Be7 18. Bc3 0-0 19. g3 f6 20. Rhf1 fxe5 21. Nxe5 Nxe5+ 22. dxe5 Bb5+ 23. Kd2 Bxf1 24. Rxf1 Bc5 25. f3 b6 26. b4 axb4 27. Bxb4 Ra8 28. Bxc5 bxc5 29. Nc3 Rf5 30. f4 g5 31. Ne2 Raf8 32. Ra1 Rb8 33. Kc2 gxf4 34. gxf4 Rh5 35. Rg1+ Kf7 36. Rg2 Rg8 37. Ng3 Rh4 38. Rf2 Rgg4 39. f5 Rf4 40. fxe6+ Kxe6 41. Re2 Rc4+ 42. Kb1 Rhg4 43. Re3 Rg5 44. b3 Rh4 45. Re2 Rxe5 46. Rf2 Rb4 47. Kc2 c4 48. bxc4 Rxc4+ 49. Kd3 Ra4 50. Rf8 Ke7 51. Rh8 Rh4 52. Rh7+ Kf6 53. Ra7 Rxh2 54. Ra6+ Kg5 55. Nf1 Rh3+ 56. Kd4 Kf5 57. Ra8 Rh4+ 58. Kc5 Rc4+ 59. Kb5 Kf4 60. Rf8+ Rf5 61. Rxf5+ Kxf5 62. Ne3+ Ke4 63. Nxc4 dxc4 64. Kxc4 h5 65. Kc3 Ke3 66. Kc4 h4 67. Kd5 h3 68. Ke5 h2 69. Kd5 h1Q+ 70. Ke5 Qh5+ 71. Ke6 Qg5 72. Kd6 Qf5 73. Kc6 Qe5 74. Kd7 Qf6 75. Kc7 Qe6 76. Kb7 Qd6 77. Ka7 Qb4 78. Ka6 Kd4 79. Ka7 Kc5 80. Ka8 Kc6 81. Ka7 Qb7# 0-1

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "5"]
[White "Akkerboom, Jacob"]
[Black "De Wit, Tex"]
[Result "0-1"]
[ECO "E85"]
[PlyCount "55"]
[EventDate "2000.05.01"]
[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. f3 0-0 6. Be3 e5 7. Nge2 Nc6 8. Qd2 Ne8 9. g4 exd4 10. Nxd4 Ne5 11. Be2 c5 12. Nc2 Be6 13. Nd5 Bxd5 14. cxd5 a6 15. 0-0-0 b5 16. Rdg1 b4 17. Ne1 a5 18. Bh6 c4 19. Bxg7 c3 20. Qd4 cxb2+ 21. Kxb2 Nxg7 22. Nd3 Nxd3+ 23. Bxd3 a4 24. Rc1 a3+ 25. Ka1 Qe7 26. Rc6 Ra4 27. Bc2 b3 28. Qxa4 0-1

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "4"]
[White "Van den Berg, Harmen"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "61"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nf3 Ne7 6. c3 c6 7. Be3 Bf5 8. 0-0 0-0 9. Re1 Nd7 10. Nh4 Bxd3 11. Qxd3 Qc7 12. h3 Rfe8 13. Nd2 Nf8 14. b3 Ne6 15. c4 c5 16. cxd5 Nf4 17. Bxf4 Bxf4 18. Rec1 Qa5 19. Nc4 Qd8 20. Rd1 Qxd5 21. dxc5 Qxc5 22. Qe4 Ng6 23. Qf3 Bg5 24. Nxg6 hxg6 25. Rd7 Re7 26. Rd5 Qc6 27. Rxg5 Qxf3 28. gxf3 Re2 29. Re5 Rc2 30. a4 Rc3 31. Re3 1-0

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Breukelman, Jan"]
[Result "1/2-1/2"]
[ECO "E31"]
[PlyCount "65"]
[EventDate "2000.05.01"]
[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 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 7. f3 Nbd7 8. e4 Qa5 9. Nge2 Ne5 10. a3 Bxc3+ 11. Nxc3 Qb6 12. Qc2 Bd7 13. Be2 g5 14. Bg3 Ng6 15. 0-0 e5 16. Rfb1 h5 17. Bf2 Qd8 18. b4 b6 19. bxc5 bxc5 20. Nb5 Ke7 21. Qd2 Nf4 22. Bd1 g4 23. Nxd6 Kf8 24. Bxc5 Qc7 25. Bb4 Kg7 26. c5 a5 27. Qc3 axb4 28. axb4 Ng6 29. Bb3 Rxa1 30. Rxa1 Qb8 31. Nc4 Bb5 32. d6 Nd7 33. Na3 1/2-1/2

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "2"]
[White "Rietman, Frits"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C13"]
[PlyCount "57"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nxf6+ Bxf6 7. Bxf6 Qxf6 8. c3 0-0 9. Nf3 Nc6 10. Be2 b6 11. 0-0 Bb7 12. Re1 Rfd8 13. Qc2 Ne7 14. Ne5 c5 15. Bf3 Bxf3 16. Nxf3 Rac8 17. Qb3 Nf5 18. dxc5 Rxc5 19. Rad1 Nh4 20. Nxh4 Qxh4 21. Qa4 Qe7 22. Qxa7 Rxd1 23. Rxd1 Qf8 24. Qxb6 Rc8 25. Qd6 Qe8 26. Qd7 Qf8 27. a4 Rb8 28. b4 g6 29. a5 1-0

[Event "NED-ch U14"]
[Site "Leiden"]
[Date "2000.05.01"]
[Round "1"]
[White "Akkerboom, Jacob"]
[Black "Michielsen, Joost"]
[Result "0-1"]
[ECO "D91"]
[PlyCount "67"]
[EventDate "2000.05.01"]
[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 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. cxd5 Nxc3 7. bxc3 Qxd5 8. e3 Bg4 9. c4 Qa5+ 10. Qd2 Qxd2+ 11. Nxd2 c5 12. h3 Bd7 13. Nb3 cxd4 14. exd4 0-0 15. Be2 e5 16. d5 Na6 17. 0-0 Rac8 18. Rac1 Rfe8 19. Rfd1 Bf8 20. Be3 b6 21. Nd2 f5 22. Re1 Nc5 23. f4 Bh6 24. g3 exf4 25. Bxf4 Bxf4 26. gxf4 Re3 27. Nf3 Rce8 28. Kf1 Nd3 29. Ne5 Nxc1 30. Nxd7 Rxe2 31. Rxc1 Kg7 32. Ne5 Re4 33. Nd3 Rd4 34. Rd1 0-1

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "9"]
[White "Akkerboom, Jacob"]
[Black "Blees, Enrico"]
[Result "1-0"]
[ECO "D51"]
[PlyCount "125"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4 6. Qb3 Bxc3+ 7. bxc3 c6 8. Nf3 Qc7 9. cxd5 cxd5 10. c4 0-0 11. cxd5 Nxd5 12. Bd3 Qa5+ 13. Nd2 N7b6 14. e4 Nf6 15. Bxf6 gxf6 16. f4 Kh8 17. Qd1 Qc3 18. Ke2 Rg8 19. Qg1 Bd7 20. g3 Rac8 21. Qe3 Na4 22. Nb3 Qb2+ 23. Qd2 Nc3+ 24. Ke3 Qxd2+ 25. Kxd2 Ba4 26. Nc5 b6 27. Kxc3 bxc5 28. dxc5 Bc6 29. Rac1 f5 30. Kd4 Rgd8+ 31. Ke3 Rxd3+ 32. Kxd3 Bxe4+ 33. Kc4 Bxh1 34. Rxh1 Kg7 35. Kb5 Kf8 36. c6 Ke7 37. Rc1 h6 38. Ka6 Rc7 39. Rb1 Rxc6+ 40. Kxa7 Rc4 41. Ra1 Kd7 42. a4 Kc7 43. a5 Rc6 44. a6 Rc3 45. Rb1 Rc6 46. Rb7+ Kc8 47. Rxf7 Rc7+ 48. Rxc7+ Kxc7 49. h3 Kc8 50. Kb6 Kb8 51. a7+ Ka8 52. Kc6 Kxa7 53. Kd6 Kb7 54. Kxe6 Kc7 55. Kxf5 Kd7 56. Kg6 Ke7 57. Kxh6 Kf7 58. Kg5 Kg7 59. g4 Kf7 60. Kh6 Kg8 61. Kg6 Kf8 62. g5 Kg8 63. Kh6 1-0

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "1"]
[White "Akkerboom, Jacob"]
[Black "Katz, Judith"]
[Result "1-0"]
[ECO "D45"]
[PlyCount "12"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Qb6 6. Qc2 g6 1-0

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "11"]
[White "Akkerboom, Jacob"]
[Black "Ris, Robert"]
[Result "0-1"]
[ECO "D61"]
[PlyCount "69"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 0-0 7. Qc2 h6 8. Bh4 c5 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe7 Qxe7 12. Qxe4 Nf6 13. Qe3 cxd4 14. Nxd4 Qb4+ 15. Qc3 Qxc3+ 16. bxc3 b6 17. Be2 Bb7 18. 0-0 Rac8 19. f3 Ba6 20. Nb5 Bxb5 21. cxb5 Rxc3 22. a4 Nd5 23. a5 Rfc8 24. axb6 axb6 25. Ra2 Rc2 26. Rxc2 Rxc2 27. Bd3 Rd2 28. Be4 f5 29. Bxd5 Rxd5 30. Re1 Kf7 31. Kf2 Ke7 32. Ke3 Kd6 33. f4 Kc5 34. g3 Rd8 35. Rb1 0-1

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "7"]
[White "Akkerboom, Jacob"]
[Black "Van Blokland, Tjerk"]
[Result "0-1"]
[ECO "D61"]
[PlyCount "80"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nc3 Be7 7. Qc2 0-0 8. b3 b6 9. Bd3 h6 10. Bh4 Bb7 11. 0-0 Rc8 12. Rac1 c5 13. cxd5 exd5 14. Rfd1 cxd4 15. Nxd4 Ba3 16. Rb1 Bb4 17. Rbc1 Rxc3 18. Qb2 Rxc1 19. Qxc1 Qc8 20. Nc2 Be7 21. Bf5 Qc6 22. Qd2 Nc5 23. Nb4 Qd6 24. Bxf6 Bxf6 25. Nxd5 Qe5 26. Nxf6+ Qxf6 27. Bh3 Ne4 28. Qc2 Ng5 29. Bf5 Rd8 30. Rc1 g6 31. Bg4 h5 32. Be2 Rc8 33. Qd2 Rxc1+ 34. Qxc1 Qc6 35. Qf1 Qc2 36. Ba6 Bxa6 37. Qxa6 Qb1+ 38. Qf1 Qxa2 39. Qd1 Kh7 40. g3 Nh3+ 0-1

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "12"]
[White "Akkerboom, Jacob"]
[Black "Van Hoeve, Ab"]
[Result "1/2-1/2"]
[ECO "D53"]
[PlyCount "46"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. Qc2 Bb4 7. e3 Nbd7 8. Bd3 h6 9. Bh4 dxc4 10. Bxc4 c6 11. 0-0 Qc7 12. Rfd1 Bxc3 13. bxc3 b6 14. e4 Bb7 15. Bg3 Qd8 16. Nd2 Qe7 17. e5 Nd5 18. Ne4 Nc7 19. Qe2 b5 20. Bd3 Nb6 21. Bf4 Nbd5 22. Bd2 f5 23. Nd6 Ne8 1/2-1/2

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "3"]
[White "Akkerboom, Jacob"]
[Black "Veurink, Stefan"]
[Result "1-0"]
[ECO "D20"]
[PlyCount "39"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 dxc4 4. e3 Bf5 5. Bxc4 Ne4 6. Nxe4 Bxe4 7. f3 Bf5 8. Qb3 e6 9. Qxb7 Bb4+ 10. Qxb4 Nc6 11. Bb5 Rb8 12. Bxc6+ Qd7 13. Bxd7+ Kxd7 14. Qa4+ Kd8 15. e4 Bg6 16. Qxa7 Rc8 17. Ne2 Re8 18. Nf4 e5 19. dxe5 Rxe5 20. Qd4+ 1-0

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "4"]
[White "Brandenburg, Daan"]
[Black "Akkerboom, Jacob"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "79"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 cxd4 7. cxd4 Nge7 8. Nc3 Nf5 9. Bb5 Bd7 10. Bxc6 bxc6 11. b4 a5 12. bxa5 Qxa5 13. Bd2 Bxa3 14. Nb1 Qa7 15. Rxa3 Qb8 16. Rxa8 Qxa8 17. 0-0 0-0 18. Bb4 Rb8 19. Bd6 Nxd6 20. exd6 Rd8 21. Qe2 Qb8 22. Qe5 Be8 23. d7 Bxd7 24. Qxb8 Rxb8 25. Ne5 Be8 26. Nd2 Kf8 27. Rc1 Ke7 28. Nxc6+ Bxc6 29. Rxc6 Rb2 30. Nf1 Rb4 31. Rc7+ Kf6 32. h3 Rxd4 33. Ne3 h6 34. Ng4+ Rxg4 35. hxg4 g5 36. g3 Kg7 37. f4 Kf6 38. f5 e5 39. Rc6+ Kg7 40. Rc5 1-0

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "6"]
[White "Duman, Murat"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "B14"]
[PlyCount "68"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 e6 3. Nf3 c5 4. c4 cxd4 5. exd4 d5 6. Nc3 Nc6 7. c5 b6 8. cxb6 Qxb6 9. Be3 Qxb2 10. Nb5 Bb4+ 11. Bd2 0-0 12. Rb1 Bxd2+ 13. Nxd2 Qxa2 14. Be2 Qa5 15. 0-0 Ba6 16. Nb3 Qb6 17. Nc5 Rab8 18. Nxa6 Qxa6 19. Nc3 Rxb1 20. Qxb1 Qa3 21. Nb5 Qa4 22. Qb2 a6 23. Ra1 Qb4 24. Qxb4 Nxb4 25. Na3 a5 26. Nb5 Nc6 27. Rc1 Nb8 28. Na3 g6 29. Rc5 Nfd7 30. Rxa5 Nc6 31. Rb5 Nxd4 32. Rb2 Nxe2+ 33. Rxe2 Ra8 34. Nb5 Ra1+ 0-1

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "13"]
[White "Van Duijvenbode, Coen"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "E00"]
[PlyCount "60"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. c4 c5 4. e3 cxd4 5. exd4 Be7 6. Nc3 0-0 7. Nf3 b6 8. Qc2 Bb7 9. Bd3 h6 10. Bd2 d5 11. cxd5 Nxd5 12. Be4 Qc7 13. Rc1 Nxc3 14. bxc3 Bxe4 15. Qxe4 Nd7 16. 0-0 Nf6 17. Qd3 Rac8 18. Rc2 Rfd8 19. Rfc1 e5 20. Be3 e4 21. Qe2 exf3 22. Qxf3 Qc6 23. Qe2 Nd5 24. Bd2 Qc4 25. Qg4 Ba3 26. Rd1 Kf8 27. Be1 Nb4 28. Re2 Nxa2 29. Re3 Nc1 30. Rg3 Ne2+ 0-1

[Event "NED U12 op"]
[Site "Hengelo"]
[Date "1999.??.??"]
[Round "10"]
[White "Wohl, Rami"]
[Black "Akkerboom, Jacob"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "70"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. b3 cxd4 7. cxd4 Bb4+ 8. Bd2 Nxd4 9. a3 Nxf3+ 10. Qxf3 Bxd2+ 11. Nxd2 Ne7 12. Bd3 Bd7 13. 0-0 Bb5 14. Bxb5+ Qxb5 15. Rac1 0-0 16. Rc7 Nc6 17. Qc3 Rfd8 18. Qe3 Qa5 19. Rxb7 d4 20. Qf4 Nxe5 21. Nc4 Qd5 22. Rc7 Rd7 23. Rxd7 Nxd7 24. Rd1 e5 25. Qf5 Re8 26. Ne3 Qe6 27. Qxe6 Rxe6 28. Kf1 g6 29. Ke2 Nc5 30. b4 Na4 31. Nd5 Rd6 32. Ne7+ Kf8 33. Nc8 Rd8 34. Rc1 Nc3+ 35. Rxc3 dxc3 0-1

