[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.08"]
[Round "8"]
[White "Ammerlaan, Stefan"]
[Black "Straat, Evert Jan"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2053"]
[BlackElo "2183"]
[PlyCount "38"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. 0-0 d6 10. f4 Bd7 11. Nb3 Na5 12. Nxa5 Qxa5 13. g4 Bc6 14. Bf3 h6 15. Qe1 g5 16. e5 dxe5 17. fxg5 hxg5 18. b4 Qc7 19. Bxg5 e4 0-1

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.03"]
[Round "2"]
[White "Ammerlaan, Stefan"]
[Black "Van Leent, Dmitri"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2053"]
[BlackElo "2208"]
[PlyCount "28"]
[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. a3 Nf6 4. Nc3 d5 5. Bb5 d4 6. Nxe5 Qd6 7. Nc4 Qc5 8. b4 Qg5 9. e5 Qxg2 10. Rf1 Ng4 11. f3 dxc3 12. fxg4 Be7 13. g5 Bxg5 14. Qh5 g6 0-1

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.11"]
[Round "9"]
[White "Ammerlaan, Stefan"]
[Black "Rosmuller, Anton J"]
[Result "1/2-1/2"]
[ECO "B85"]
[BlackElo "2138"]
[PlyCount "33"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. Nb3 Nc6 10. f4 Qc7 11. Bf3 Re8 12. g4 Na5 13. Nxa5 Qxa5 14. Qd2 Qc7 15. Qf2 Nd7 16. Na4 b5 17. Nb6 1/2-1/2

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.10"]
[Round "8"]
[White "Westerkamp, Bert"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2149"]
[PlyCount "62"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 d5 3. Bf4 Bg7 4. e3 Nf6 5. Nbd2 0-0 6. c4 c6 7. Bd3 Nh5 8. Be5 f6 9. Bxb8 Rxb8 10. cxd5 cxd5 11. 0-0 e5 12. e4 dxe4 13. Nxe4 exd4 14. Nc5 Kh8 15. Qa4 Nf4 16. Rfd1 Bg4 17. Bf1 Qe7 18. Qxd4 Nh3+ 19. gxh3 Bxf3 20. Re1 f5 21. Rxe7 Bxd4 22. Ne6 Bxb2 23. Ng5 Bd5 24. Rd1 Rfd8 25. Rxh7+ Kg8 26. h4 Bf6 27. Rc7 Bxa2 28. Rxd8+ Rxd8 29. Rxb7 Bxg5 30. Rxa7 Bh6 31. Rxa2 Rd1 1/2-1/2

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.08"]
[Round "6"]
[White "Stange, Wim"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2158"]
[PlyCount "43"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. d4 c5 2. d5 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 b5 6. a4 Qa5+ 7. c3 Bd7 8. 0-0 Na6 9. Na3 bxa4 10. e4 Nc7 11. Re1 f6 12. Bf1 Qb6 13. Nc4 Qb7 14. Bf4 Kf8 15. Nxd6 exd6 16. Bxd6+ Kf7 17. Bxc7 Qxc7 18. e5 Bf5 19. Bc4 Qb6 20. d6+ Be6 21. Ng5+ fxg5 22. Qf3+ 1-0

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.07"]
[Round "5"]
[White "Ammerlaan, Stefan"]
[Black "Jongsma, Daan"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "2233"]
[PlyCount "66"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. a3 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 Nf6 6. e4 d6 7. f4 Nd4 8. Nf3 0-0 9. 0-0 Bg4 10. Be3 Qb6 11. Rb1 e6 12. h3 Nxf3+ 13. Bxf3 Bxh3 14. Rf2 h5 15. b4 Ng4 16. bxc5 Nxf2 17. Kxf2 Qa5 18. Nb5 dxc5 19. Bxc5 Rfd8 20. d4 b6 21. Bd6 a6 22. Nc7 Qc3 23. e5 Rxd6 24. Rb3 Qxd4+ 25. Qxd4 Rxd4 26. Nxa8 Rd2+ 27. Ke3 Rxc2 28. Nxb6 Bf8 29. Nd7 Be7 30. Nf6+ Kg7 31. Ne4 Rc7 32. Nd6 Rd7 33. Bc6 Rd8 0-1

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.06"]
[Round "4"]
[White "Lappage, Jonathan"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2189"]
[PlyCount "44"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qa5 5. d4 Bg4 6. Bb5 0-0-0 7. Bxc6 bxc6 8. h3 Qh5 9. Qd3 Bxf3 10. gxf3 Nf6 11. Rg1 Kb8 12. Be3 Nd5 13. Nxd5 Rxd5 14. c4 Rf5 15. d5 cxd5 16. Qd4 Qxf3 17. Qxa7+ Kc8 18. Qa6+ Kd8 19. Qa8+ Kd7 20. cxd5 Rxd5 21. Rc1 e6 22. Qc6+ Ke7 0-1

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.05"]
[Round "2"]
[White "Ammerlaan, Stefan"]
[Black "Haak, Eelco"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2197"]
[PlyCount "82"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Qc2 Nge7 7. Be3 Bg4 8. Ne2 Qd7 9. Nd2 Bf5 10. 0-0-0 0-0-0 11. Bg5 Rde8 12. Bf4 Bxd3 13. Qxd3 Qf5 14. Qg3 Ng6 15. Bxd6 Rxe2 16. Bxc7 Qxf2 17. Rhf1 Qxg3 18. Bxg3 f6 19. Nf3 Rxg2 20. Rde1 Kd7 21. Re3 Re8 22. Rxe8 Kxe8 23. Re1+ Kd7 24. Re3 f5 25. Ne1 Rg1 26. Rf3 f4 27. Bf2 Rh1 28. h3 Nce5 29. dxe5 Nxe5 30. Kd2 Nxf3+ 31. Nxf3 Rxh3 32. Ke2 a6 33. a3 h6 34. Bd4 g5 35. Ne5+ Ke6 36. Nd3 Rh2+ 37. Kf1 Rd2 38. Nc5+ Kf5 39. Nxb7 Rxb2 40. Nc5 a5 41. Nd7 Ra2 0-1

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.04"]
[Round "9"]
[White "Ammerlaan, Stefan"]
[Black "Van der Zalm, Marnix"]
[Result "1/2-1/2"]
[ECO "B07"]
[BlackElo "2101"]
[PlyCount "140"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 c5 6. d5 Na6 7. f4 Nc7 8. Be3 b5 9. e5 dxe5 10. fxe5 Nfxd5 11. Nxd5 Nxd5 12. Bxb5+ Bd7 13. Qxd5 Bxb5 14. Qxc5 Qa5+ 15. c3 Qa6 16. Nf3 Rc8 17. Qxa7 Qc6 18. Kf2 Qc4 19. Rhe1 Qxg4 20. Qd4 Qf5 21. Rad1 Bc6 22. Qf4 Qh5 23. Rg1 f6 24. Qg4 Qxg4 25. Rxg4 0-0 26. e6 Ra8 27. a3 Ra5 28. Rc4 Ba8 29. Rc5 Ra6 30. Nd4 f5 31. Rc7 f4 32. Rxe7 fxe3+ 33. Kxe3 Bxd4+ 34. cxd4 Bd5 35. Rc1 Rxe6+ 36. Rxe6 Bxe6 37. Ke4 Re8 38. d5 Bf5+ 39. Kd4 Re2 40. b4 Rxh2 41. d6 Ra2 42. Rc3 Kf7 43. Kd5 h5 44. Kc6 h4 45. Kc7 h3 46. d7 Rd2 47. d8Q Rxd8 48. Kxd8 h2 49. Rc1 Be4 50. b5 g5 51. Re1 h1Q 52. Rxh1 Bxh1 53. a4 g4 54. b6 g3 55. a5 Bb7 56. Kc7 Ba6 57. b7 Bxb7 58. Kxb7 g2 59. a6 g1Q 60. a7 Qg2+ 61. Kb8 Qg3+ 62. Kb7 Qf3+ 63. Kb8 Qf4+ 64. Kb7 Qe4+ 65. Kb8 Qe5+ 66. Kb7 Qd5+ 67. Kb8 Qb5+ 68. Ka8 Qa6 69. Kb8 Qb6+ 70. Ka8 Qxa7+ 1/2-1/2

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.03"]
[Round "8"]
[White "Werle, Jan"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2412"]
[PlyCount "55"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 e5 4. g3 d6 5. Bg2 f5 6. d3 Nf6 7. 0-0 Nc6 8. Rb1 0-0 9. b4 h6 10. b5 Ne7 11. c5 g5 12. Ba3 Ng6 13. cxd6 cxd6 14. Nd2 Be6 15. Nc4 d5 16. Nd6 Qd7 17. Qb3 Ne7 18. Qb4 Nc8 19. e4 fxe4 20. dxe4 d4 21. Nd5 Bxd5 22. exd5 Rd8 23. Nxc8 Raxc8 24. Qe7 Nxd5 25. Qxd7 Rxd7 26. Bh3 Rdc7 27. Be6+ Kh8 28. Bxd5 1-0

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.02"]
[Round "7"]
[White "Steenbekkers, Franck"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2196"]
[PlyCount "55"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 bxa4 14. Rxa4 Ne7 15. Ncb4 a5 16. Nxe7+ Qxe7 17. Nd5 Qb7 18. Qa1 Bd7 19. Ra3 f5 20. Bc4 Be6 21. 0-0 fxe4 22. Qa2 Kh8 23. Rd1 Rxf2 24. Rxa5 Rxa5 25. Qxa5 Rxb2 26. Qa1 e3 27. Rf1 g6 28. Nb4 0-1

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.01"]
[Round "6"]
[White "Ammerlaan, Stefan"]
[Black "Geukes, Rob"]
[Result "1-0"]
[ECO "B20"]
[PlyCount "21"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 c5 2. b4 e5 3. Nf3 Qc7 4. Nc3 Nf6 5. b5 d6 6. Bc4 Be7 7. d3 0-0 8. Bg5 Be6 9. Bxf6 Bxc4 10. Bxe7 Qxe7 11. dxc4 1-0

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.07.29"]
[Round "2"]
[White "Ammerlaan, Stefan"]
[Black "Kalisvaart, Peter"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "42"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Bc4 Nc6 4. Nf3 Nf6 5. 0-0 Bc5 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. fxg7 Rg8 10. Ng5 Qd5 11. Rxe6+ fxe6 12. Qh5+ Kd7 13. Nxh7 Qxh5 14. Nf6+ Ke7 15. Nxh5 d3 16. Nd2 Bd4 17. Nxc4 dxc2 18. Be3 b5 19. Na5 Nxa5 20. Bxd4 Rad8 21. Bf6+ Kf7 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Ammerlaan, Stefan"]
[Black "Keizer, Theodoor"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "51"]
[EventDate "2001.08.??"]
[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 Nf6 2. Nc3 d6 3. d4 g6 4. Be2 Bg7 5. g4 h6 6. Be3 Nc6 7. f4 e5 8. fxe5 dxe5 9. d5 Nb4 10. a3 Nxg4 11. Bxg4 Bxg4 12. Qd2 Na6 13. Nge2 Bf6 14. 0-0-0 Bg5 15. h4 Bxe3 16. Qxe3 Qe7 17. Nb5 0-0 18. Rdg1 Bxe2 19. Qxe2 Kh7 20. h5 g5 21. Rf1 c6 22. Nc3 Nc7 23. Rf5 cxd5 24. exd5 f6 25. Qd3 Kg7 26. d6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Ammerlaan, Stefan"]
[Black "Leenhouts, Koen"]
[Result "0-1"]
[ECO "B41"]
[BlackElo "2111"]
[PlyCount "100"]
[EventDate "2001.08.??"]
[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 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Bf3 Nc6 7. Nxc6 bxc6 8. 0-0 d5 9. exd5 cxd5 10. c4 Be7 11. Nc3 Bb7 12. Bg5 0-0 13. cxd5 Nxd5 14. Bxd5 exd5 15. Bxe7 Qxe7 16. Nxd5 Qg5 17. Ne3 h5 18. Qd7 Be4 19. Rad1 Rfe8 20. Qh3 Qa5 21. Nc4 Qxa2 22. Nd6 Re6 23. Nxe4 Rxe4 24. Qa3 Qxa3 25. bxa3 Rb8 26. Rb1 Rxb1 27. Rxb1 Rc4 28. Kf1 Rc3 29. Ra1 Kf8 30. Ke2 Rc2+ 31. Ke3 Ke7 32. Rd1 Ke6 33. Rd4 Rc3+ 34. Rd3 Rxd3+ 35. Kxd3 Kd5 36. f3 h4 37. g3 h3 38. Kc3 a5 39. Kd3 f5 40. a4 Kc5 41. Kc3 g5 42. g4 f4 43. Kd3 Kb4 44. Ke4 Kxa4 45. Kf5 Kb4 46. Kxg5 a4 47. Kxf4 a3 48. Kg3 a2 49. Kxh3 a1Q 50. g5 Qg1 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Ammerlaan, Stefan"]
[Black "Weijers, Ralf"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "49"]
[EventDate "2001.08.??"]
[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 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 e6 7. 0-0 a6 8. Be3 Qc7 9. f4 b5 10. Nxc6 Qxc6 11. Bf3 Bb7 12. e5 Nd5 13. Nxd5 exd5 14. Qd2 dxe5 15. fxe5 Rd8 16. Bh5 Rd7 17. e6 Qxe6 18. Rae1 Be7 19. Bd4 Qc6 20. Bxg7 Rg8 21. Bxf7+ Kd8 22. Bxg8 Qg6 23. Rxe7 Rxe7 24. Bf6 Qxg8 25. Re1 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "De Jong, Jasper"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "C32"]
[PlyCount "157"]
[EventDate "2001.08.??"]
[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 Qxd5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 Ne7 8. dxe4 Qxe4+ 9. Qe2 Qxf4 10. Bxg7 Rg8 11. Be5 Qb4+ 12. c3 Qa5 13. Nf3 Nbc6 14. Qb5 Qxb5 15. Bxb5 Rxg2 16. 0-0-0 Bg4 17. Rhf1 Kf8 18. Bxc7 Nf5 19. Rde1 Rc8 20. Bf4 Bxf3 21. Rxf3 Ncd4 22. Rd3 Nxb5 23. Rd5 Nbd4 24. Kb1 Nf3 25. Rf1 N5h4 26. Rd7 Rc6 27. Bg3 Rb6 28. Bxh4 Rbxb2+ 29. Ka1 Rxa2+ 30. Kb1 Rab2+ 31. Ka1 Nxh4 32. Rfxf7+ Kg8 33. Rfe7 Rbf2 34. Re8+ Rf8 35. Rxf8+ Kxf8 36. Rxh7 Rxh2 37. Rxb7 Rc2 38. Rxa7 Rxc3 39. Kb2 Rc6 40. Ra4 Ng6 41. Re4 Kf7 42. Kb3 Kf6 43. Kb4 Ne5 44. Kb5 Rc1 45. Rh4 Ke6 46. Rh8 Nd7 47. Rh6+ Kd5 48. Rh5+ Ne5 49. Kb4 Rc4+ 50. Kb5 Rc5+ 51. Kb4 Rc8 52. Rg5 Kd4 53. Kb3 Rc3+ 54. Kb4 Nd3+ 55. Kb5 Rb3+ 56. Kc6 Ne5+ 57. Kc7 Kd5 58. Rh5 Rc3+ 59. Kb6 Ke6 60. Rh6+ Ke7 61. Rh7+ Nf7 62. Kb5 Ke6 63. Kb4 Rc7 64. Rh1 Ne5 65. Re1 Kd5 66. Ra1 Ke4 67. Re1+ Kd4 68. Ra1 Nd3+ 69. Kb5 Rc5+ 70. Kb6 Rc3 71. Rh1 Kd5 72. Rh5+ Ne5 73. Kb7 Rb3+ 74. Kc7 Rb5 75. Rf5 Ke6 76. Rh5 Rc5+ 77. Kb7 Kd5 78. Kb6 Rc1 79. Kb7 1/2-1/2

[Event "Hengelo op U20"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "Den Heeten, Djurre"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "B00"]
[PlyCount "10"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. Be2 Na5 3. Bf1 Nc6 4. Bd3 Na5 5. Bf1 Nc6 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Ngo, An"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "A43"]
[PlyCount "77"]
[EventDate "2001.08.??"]
[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. Nf3 cxd4 3. Qxd4 Nc6 4. Qa4 Nf6 5. Bf4 d6 6. c3 e5 7. Bg3 Be7 8. e3 0-0 9. Be2 Be6 10. 0-0 a6 11. Nbd2 Rc8 12. Rfd1 Qc7 13. Ng5 Bd7 14. Bf1 Nd4 15. Qc4 Qb6 16. Qd3 Ne6 17. Nxe6 Bxe6 18. b3 Rfd8 19. Rac1 Nh5 20. Nf3 Nxg3 21. hxg3 f5 22. e4 Rf8 23. exf5 Rxf5 24. c4 Rd8 25. Qc2 Rdf8 26. Bd3 Rh5 27. Re1 Bg4 28. Be4 Kh8 29. Nh2 Bf5 30. g4 Bxe4 31. Rxe4 Rh6 32. Nf3 Rhf6 33. Rce1 Rf4 34. Rxf4 Rxf4 35. Re4 Rf7 36. g5 g6 37. Qd3 Qc5 38. Qd2 a5 39. g4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Van Dommelen, Martin"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "69"]
[EventDate "2001.08.??"]
[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 Nc6 2. Nc3 e5 3. Bc4 Bc5 4. Nf3 Nf6 5. d3 d6 6. Be3 Bxe3 7. fxe3 Na5 8. Bb3 Nxb3 9. axb3 0-0 10. Qe2 c6 11. 0-0 Qe7 12. d4 Re8 13. Rae1 Bg4 14. Qf2 Bh5 15. Kh1 Bg6 16. Nd2 b5 17. b4 a5 18. bxa5 b4 19. Na2 Reb8 20. Nb3 Nxe4 21. Qe2 Qh4 22. Kg1 exd4 23. exd4 d5 24. Nac1 Re8 25. Nd3 Nd6 26. Qd2 Bxd3 27. Rxe8+ Rxe8 28. cxd3 Qe7 29. Qxb4 Qe3+ 30. Kh1 Qe2 31. Rc1 Nf5 32. a6 Qh5 33. h3 Nh4 34. Re1 f5 35. a7 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Van Rijn, Luuk"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "A21"]
[PlyCount "7"]
[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. c4 e5 2. Nc3 d6 3. Nf3 Nc6 4. e3 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Ammerlaan, Stefan"]
[Black "Vivolo, Zeno"]
[Result "1/2-1/2"]
[ECO "B99"]
[PlyCount "72"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Nb3 b5 11. e5 Bb7 12. Qg3 dxe5 13. fxe5 Qxe5 14. Bf4 Qf5 15. Nd4 Qg6 16. Qe1 b4 17. Bd3 Qh5 18. Ne4 Qa5 19. Kb1 Bd5 20. Nb3 Qb6 21. Be3 Qc7 22. Nxf6+ Nxf6 23. Qe2 a5 24. Bb5+ Bc6 25. Qf3 Rc8 26. Bxc6+ Qxc6 27. Qxc6+ Rxc6 28. Nxa5 Ra6 29. Nb3 0-0 30. Nc5 Rc6 31. Nd7 Rfc8 32. Nxf6+ Bxf6 33. Rd2 Be7 34. Rhd1 Kf8 35. Rd7 Rxc2 36. R7d2 R2c6 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Vlug, Marcel"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "62"]
[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 c5 2. d4 cxd4 3. Nf3 Nc6 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 bxc6 7. Bg5 Be7 8. Bc4 0-0 9. 0-0 Bb7 10. Re1 Re8 11. Qd3 Qc7 12. Qf3 Rad8 13. Rad1 h6 14. Bh4 d6 15. Re3 Rd7 16. Qg3 Red8 17. Rf3 Kf8 18. Rfd3 Qa5 19. Qf3 g5 20. Bg3 d5 21. exd5 cxd5 22. Bb5 e4 23. Qf5 exd3 24. Bxd7 dxc2 25. Rc1 Rxd7 26. Rxc2 a6 27. h3 Qb6 28. Na4 Qe6 29. Qd3 Ne4 30. Bh2 Bd8 31. Re2 Qc6 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Haase, Paul"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "94"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxe7 Nxe7 11. Bd3 h6 12. Bd2 0-0 13. 0-0 d5 14. exd5 e4 15. Be2 Nexd5 16. c3 Re8 17. Nc2 Qe7 18. Ne3 Bb7 19. Re1 Rad8 20. Qc2 Nxe3 21. Bxe3 Nd5 22. Bg4 Nxe3 23. Rxe3 Qe5 24. Rd1 f5 25. Be2 g5 26. c4 b4 27. Bf1 f4 28. Ree1 g4 29. Qc1 h5 30. b3 h4 31. Qa1 Qg5 32. Rxd8 Rxd8 33. Rd1 g3 34. Rxd8+ Qxd8 35. fxg3 hxg3 36. hxg3 Qb6+ 37. c5 Qxc5+ 38. Kh1 Qh5+ 39. Kg1 fxg3 40. Bc4+ Kh7 41. Qd4 Qh2+ 42. Kf1 Qh1+ 43. Ke2 Qxg2+ 44. Kd1 Qh1+ 45. Kc2 Qh3 46. Qf6 Qg2+ 47. Kd1 Qf3+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Ammerlaan, Stefan"]
[Black "Sminia, Jelmer"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "102"]
[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 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nd5 Be7 6. Nxd4 Nxd4 7. Qxd4 d6 8. Nxe7 Qxe7 9. Bd3 h6 10. 0-0 Bd7 11. Bd2 Bc6 12. Rae1 Qe5 13. Qxe5+ dxe5 14. Bc3 Nd7 15. f4 f6 16. b4 b6 17. fxe5 fxe5 18. Bc4 0-0-0 19. b5 Bb7 20. Be6 Rhe8 21. Bf5 Kb8 22. Rd1 Bc8 23. a4 g5 24. Rd5 Nc5 25. Rxd8 Rxd8 26. Bxe5 Re8 27. Bxc8 Kxc8 28. Bg7 Rxe4 29. Bxh6 g4 30. Rf4 Rxa4 31. Rxa4 Nxa4 32. Bg7 Nc5 33. Kf2 Ne4+ 34. Ke3 Nd6 35. Kf4 Kd7 36. Kxg4 Ke6 37. h4 Kf7 38. Be5 Nxb5 39. h5 c5 40. h6 Kg6 41. Bg7 a5 42. Kf4 a4 43. Ba1 Na3 44. c3 Nc2 45. Bb2 a3 46. Bxa3 Nxa3 47. Ke5 Nb1 48. c4 Na3 49. g4 Nxc4+ 50. Ke6 Kxh6 51. Kf6 Kh7 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Van den Oord, Pieter"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "A37"]
[PlyCount "30"]
[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. Nf3 c5 2. c4 g6 3. Nc3 Bg7 4. g3 Nc6 5. Bg2 d6 6. 0-0 e5 7. d3 Nge7 8. e4 0-0 9. Ne1 f5 10. f4 Rb8 11. Nc2 a6 12. a4 Nd4 13. Nxd4 exd4 14. Nd5 Nxd5 15. exd5 Bd7 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Ammerlaan, Stefan"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "57"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be6 7. Bg5 Nbd7 8. Qd2 a6 9. f4 Be7 10. Bxf6 Nxf6 11. f5 Bd7 12. Be2 Rc8 13. Bf3 b5 14. a3 a5 15. g4 b4 16. axb4 axb4 17. Ne2 Bc6 18. Ng3 d5 19. Qg2 dxe4 20. Nxe4 Nxe4 21. Bxe4 Bh4+ 22. Ke2 Bb5+ 23. Kf3 0-0 24. Qd2 Qb6 25. g5 Rfd8 26. Qg2 Rc4 27. Kg4 Qe3 28. Kxh4 Rxe4+ 29. Kh5 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Van den Boom, Inge"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "80"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bd3 a6 8. Na3 b5 9. Ne2 Be7 10. c3 Bb7 11. 0-0 h5 12. f4 Qb6+ 13. Kh1 Ng4 14. Qe1 0-0-0 15. Nc2 Rdg8 16. Ng3 h4 17. Nf5 h3 18. g3 g6 19. Nfe3 Nf6 20. a4 Na5 21. Nd5 Nxd5 22. exd5 Bxd5+ 23. Be4 Qc6 24. axb5 Bxe4+ 25. Kg1 Qc5+ 26. Rf2 Bxc2 27. b4 Qc7 28. Rxc2 Nc4 29. Rxa6 Kd7 30. Rca2 Ra8 31. Rxa8 Rxa8 32. Rxa8 Qb7 33. Ra2 Bd8 34. Kf1 Bb6 35. Rf2 Bxf2 36. Qxf2 Qh1+ 37. Qg1 Qf3+ 38. Qf2 Qxc3 39. Qe2 Qxc1+ 40. Kf2 Qd2 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Ammerlaan, Stefan"]
[Black "Jacobs, Jos"]
[Result "1-0"]
[ECO "C53"]
[PlyCount "37"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Qf6 6. e5 Qg6 7. cxd4 Bb4+ 8. Nc3 Nge7 9. 0-0 d6 10. Nb5 0-0 11. a3 Ba5 12. Bd3 Qh5 13. exd6 cxd6 14. Nxd6 Bc7 15. Nxc8 Nxd4 16. Nxe7+ Kh8 17. h3 Nxf3+ 18. Qxf3 Qe5 19. g3 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.06"]
[Round "9"]
[White "Ammerlaan, Stefan"]
[Black "Freeke, Matthieu"]
[Result "0-1"]
[ECO "C01"]
[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. exd5 exd5 4. Bd3 Bd6 5. c3 Ne7 6. Qc2 h6 7. Nf3 0-0 8. Be3 b6 9. Nbd2 c5 10. b3 Nbc6 11. h4 Re8 12. 0-0-0 a5 13. Rdg1 f5 14. g3 Be6 15. h5 Qd7 16. Rh4 Rec8 17. Kd1 Nb4 18. cxb4 cxd4 19. Qb2 dxe3 20. fxe3 Bxb4 21. Rxb4 axb4 22. g4 Rc3 23. Ke2 fxg4 24. Ne5 Qd6 25. Nxg4 Bxg4+ 26. Rxg4 Qh2+ 27. Kd1 Rac8 28. Bc2 Qxh5 29. e4 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "7"]
[White "Ammerlaan, Stefan"]
[Black "Sevriens, Thomas"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "93"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 Nc6 9. h3 Bd7 10. Qd2 a6 11. f4 b5 12. Bf3 Rc8 13. Nb3 Na5 14. Nxa5 Qxa5 15. Nd5 Qxd2 16. Nxe7+ Kh8 17. Bxd2 Rxc2 18. Bc3 Re8 19. e5 dxe5 20. fxe5 Rxc3 21. bxc3 Rxe7 22. exf6 Bxf6 23. Rac1 Be6 24. a3 Rc7 25. Rfd1 Rxc3 26. Rxc3 Bxc3 27. Rd8+ Kg7 28. Ra8 a5 29. Be2 Bd5 30. Rd8 Bc4 31. Bxc4 bxc4 32. Rc8 Bb2 33. a4 c3 34. Kf2 h5 35. Ke2 Kh6 36. Rc5 c2 37. Rxc2 Ba3 38. Rd2 g5 39. Rd5 Bb4 40. Rb5 Bc3 41. Kd3 Be1 42. Rb6+ Kg7 43. Ke4 g4 44. hxg4 hxg4 45. Rb1 Bf2 46. Rb5 Be1 47. Rg5+ 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "8"]
[White "Van Eijk, Jasper"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "D85"]
[PlyCount "59"]
[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. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 0-0 8. Rb1 c5 9. Be2 Nc6 10. d5 Bxc3+ 11. Bd2 Bxd2+ 12. Qxd2 Na5 13. Qh6 f6 14. h3 Rf7 15. Qe3 b6 16. g4 e6 17. Rd1 Rd7 18. 0-0 exd5 19. exd5 Rxd5 20. Rxd5 Qxd5 21. Rd1 Qe6 22. Rd8+ Kf7 23. Ng5+ fxg5 24. Qf3+ Qf6 25. Rf8+ Kxf8 26. Qxf6+ Kg8 27. Bf3 Bb7 28. Qe6+ Kf8 29. Qd6+ Ke8 30. Bxb7 1/2-1/2

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.04"]
[Round "6"]
[White "Wakkee, Colijn"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "D91"]
[PlyCount "63"]
[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. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bg5 c6 6. e3 0-0 7. Bd3 e6 8. e4 dxc4 9. Bxc4 Qa5 10. 0-0 b5 11. Bd3 b4 12. e5 Nfd7 13. Ne4 f6 14. exf6 Nxf6 15. Nxf6+ Bxf6 16. Bxf6 Rxf6 17. Re1 Nd7 18. Ne5 Qb6 19. Ng4 Rf4 20. Rxe6 Qxd4 21. Qb3 Kf8 22. Rae1 Rxg4 23. Re8+ Kg7 24. Qg8+ Kh6 25. R1e3 Qd5 26. Rh3+ Kg5 27. Rh5+ Kxh5 28. Qxh7+ Kg5 29. Qxg6+ Kf4 30. Re4+ Qxe4 31. Qxe4+ Kg5 32. Qg6+ 1/2-1/2

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "4"]
[White "Ammerlaan, Stefan"]
[Black "Hummel, Erik Jan"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "106"]
[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 Nc6 5. c3 Bd6 6. Be3 Nf6 7. Qc2 Be6 8. Nd2 Ng4 9. Ngf3 Qd7 10. 0-0-0 0-0-0 11. b4 h6 12. Nb3 Ne7 13. Nc5 Bxc5 14. dxc5 Nxe3 15. fxe3 Bf5 16. c6 Qe6 17. cxb7+ Kb8 18. Rhe1 Bxd3 19. Qxd3 Kxb7 20. Nd4 Qb6 21. Nb3 Rhe8 22. a4 Ka8 23. Nc5 a5 24. Qa6+ Qxa6 25. Nxa6 Kb7 26. Nc5+ Kc6 27. Nd3 Nf5 28. bxa5 Nxe3 29. Nb4+ Kc5 30. Rd3 Nxg2 31. Rxe8 Rxe8 32. Rxd5+ Kc4 33. Rd2 Nf4 34. Kc2 c5 35. Nc6 Re6 36. Nd8 Re3 37. Nxf7 Rxc3+ 38. Kd1 Ra3 39. Ne5+ Kb4 40. Nc6+ Kxa4 41. Rb2 Nd3 42. Rb7 Nb4 43. Ne5 Kb3 44. Rxg7 Ra1+ 45. Kd2 Ra2+ 46. Kd1 Rxh2 47. Rc7 Rc2 48. a6 Nxa6 49. Rc6 Nb4 50. Rxh6 c4 51. Rh4 Nd3 52. Nxc4 Kc3 53. Nd6 Rd2# 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "5"]
[White "Edeling, Jeroen"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "35"]
[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 c5 2. f4 Nc6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 d6 6. 0-0 e6 7. Qe1 Nge7 8. d3 0-0 9. f5 exf5 10. Qh4 Ne5 11. Bg5 N5c6 12. Nd5 Re8 13. Nf6+ Bxf6 14. Bxf6 h5 15. Qg5 Kh7 16. Bxf7 Qd7 17. Bxg6+ Nxg6 18. Qxh5+ 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "3"]
[White "Ammerlaan, Stefan"]
[Black "Ruijgrok, Dennis"]
[Result "0-1"]
[ECO "C53"]
[PlyCount "40"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Qe7 6. 0-0 d3 7. Bg5 f6 8. Bf4 d6 9. Qxd3 Ne5 10. Nxe5 fxe5 11. Be3 Bxe3 12. Qxe3 Nf6 13. Nd2 Be6 14. Bxe6 Qxe6 15. f4 exf4 16. Qxf4 0-0 17. Qf5 Rae8 18. Qa5 Nxe4 19. Rxf8+ Rxf8 20. Re1 Nxd2 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "2"]
[White "Erwich, Frank"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2224"]
[PlyCount "59"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 d6 6. 0-0 Nf6 7. Nc3 0-0 8. h3 Re8 9. f4 d5 10. Bb5 dxe4 11. Nxc6 bxc6 12. Bxc6 Bc5+ 13. Kh1 Ba6 14. Re1 Bf2 15. Be3 Qxd1 16. Raxd1 Bxe1 17. Rxe1 Red8 18. Bxa8 Rxa8 19. Bd4 Nh5 20. Kh2 Nxf4 21. Rxe4 Ne6 22. Be3 Rd8 23. Ra4 Bb7 24. Rxa7 Bc6 25. b4 Rb8 26. Bc5 h6 27. a4 Nxc5 28. bxc5 Rb2 29. Rxc7 Bxg2 30. Nd1 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.01"]
[Round "1"]
[White "Boelaars, Ilja"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "53"]
[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 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Qa4+ Bd7 6. Qb3 Qxb3 7. axb3 Nc6 8. Be2 Nf6 9. d3 g6 10. Na3 Bg7 11. Nc2 Be6 12. b4 cxb4 13. c4 Rd8 14. d4 Bf5 15. Ne3 e6 16. Nxf5 gxf5 17. 0-0 a6 18. Rd1 0-0 19. Bg5 Rd7 20. Rab1 Rfd8 21. Be3 Ne4 22. d5 exd5 23. Bb6 Rc8 24. cxd5 Ne7 25. Rbc1 Rxc1 26. Rxc1 Bxb2 27. Rc2 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Plukkel, Sjoerd"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "84"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Bd3 Ne7 13. 0-0 Nxd5 14. exd5 f5 15. Nc2 0-0 16. a4 Bd7 17. axb5 axb5 18. Qe2 f4 19. Rxa8 Qxa8 20. Bxb5 f3 21. gxf3 Bxb5 22. Qxb5 Rxf3 23. Ne1 Rh3 24. Qd7 Rh6 25. Nf3 Bf4 26. Qc6 Qxc6 27. dxc6 d5 28. Re1 Rxc6 29. Nxe5 Bxe5 30. Rxe5 Rb6 31. Re2 Kf7 32. Kf1 Kf6 33. Ke1 Kf5 34. Rd2 Ke5 35. Kd1 Rh6 36. Kc2 Ke6 37. f3 Rf6 38. Rf2 g5 39. Kd3 Rf4 40. b4 Kd6 41. Ke3 Rc4 42. Rc2 Kc6 1/2-1/2

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Ammerlaan, Stefan"]
[Black "Wulffers, Silvester"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "15"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 dxc3 6. 0-0 d6 7. Qd5 cxb2 8. Qxf7+ 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Koekoek, Arjen"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "112"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. Be2 a6 10. Nc3 f5 11. 0-0 g6 12. Be3 f4 13. Bd2 Bf5 14. Bg4 Qg5 15. Bf3 Nd7 16. Ne4 Bxe4 17. Bxe4 Nf6 18. f3 h5 19. c4 h4 20. Qa4+ Kf7 21. Qb3 h3 22. Rf2 Rb8 23. g4 Nxe4 24. fxe4 Qxg4+ 25. Kh1 Be7 26. Raf1 g5 27. Ba5 Qd7 28. Qd1 Rbg8 29. Rg1 g4 30. Bd2 Bh4 31. Rff1 g3 32. hxg3 Bxg3 33. Qf3 Ke8 34. Be1 Qg7 35. a3 Qg4 36. Qxg4 Rxg4 37. Bb4 Kd7 38. Rf3 b6 39. Be1 Rhg8 40. Bc3 Ke7 41. Be1 Bxe1 42. Rxe1 Rg3 43. Rf2 Kf6 44. Kh2 R8g4 45. Kh1 Kg5 46. Rd1 Rg2 47. Rf3 R4g3 48. Rdd3 Kg4 49. Rxg3+ fxg3 50. b4 Ra2 51. Rd1 Rc2 52. c5 bxc5 53. bxc5 Rxc5 54. a4 Rc4 55. Re1 Rxa4 56. Rg1 Rb4 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Ammerlaan, Stefan"]
[Black "Muhren, Willem"]
[Result "0-1"]
[ECO "B39"]
[PlyCount "96"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Be2 Bxc3+ 11. bxc3 b6 12. Bd4 f6 13. h4 Bb7 14. h5 g5 15. Bf3 0-0 16. Qc2 Qc7 17. Rd1 Qxc4 18. Be3 Bc6 19. Be2 Qa4 20. Qb1 Bxe4 21. Bd3 Bxd3 22. Qxd3 Rfd8 23. 0-0 Rac8 24. Rd2 Qc4 25. Qf5 Ng7 26. Qh3 Qe6 27. Qxe6+ Nxe6 28. Rfd1 d6 29. Rd3 Rc4 30. g3 Rdc8 31. Bd2 Ng7 32. Re1 Kf7 33. h6 Nf5 34. Rf3 Kg6 35. Kg2 R8c7 36. Re6 Nxh6 37. Rfe3 Ng4 38. Re1 Ne5 39. f4 Kf5 40. R6xe5+ dxe5 41. g4+ Kg6 42. fxg5 Rxg4+ 43. Kh3 Ra4 44. gxf6 exf6 45. Rg1+ Kf7 46. Bh6 Rxc3+ 47. Kh2 Rxa2+ 48. Kh1 Rh3# 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Ammerlaan, Stefan"]
[Black "Van Beek, Guido"]
[Result "1/2-1/2"]
[ECO "B41"]
[PlyCount "51"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. Nc3 a6 5. a3 Nf6 6. d4 cxd4 7. Nxd4 Qc7 8. Be3 d6 9. Be2 Be7 10. 0-0 0-0 11. g4 Nd7 12. f4 Nxd4 13. Bxd4 b6 14. g5 Bb7 15. Bd3 e5 16. fxe5 dxe5 17. Be3 Bc5 18. Qf3 f5 19. Nd5 Bxd5 20. cxd5 fxe4 21. Qxe4 Bxe3+ 22. Qxe3 Qd6 23. Bf5 Qxd5 24. Qh3 Qc5+ 25. Kh1 Qc6+ 26. Kg1 1/2-1/2

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Paulis, Winifred"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "106"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bf4 Nc6 5. Bxd3 d6 6. Nf3 e5 7. Bg3 Be6 8. 0-0 Be7 9. Qe2 h5 10. h3 g5 11. Rd1 g4 12. hxg4 hxg4 13. Nh2 Bh4 14. Nd2 Bxg3 15. fxg3 Qb6+ 16. Kh1 Nf6 17. Ndf1 Nh5 18. Rd2 0-0-0 19. Qf2 Qxf2 20. Rxf2 Rh7 21. Kg1 Rdh8 22. b4 Nxg3 23. Nxg3 Rxh2 24. a4 Ne7 25. c4 Ng6 26. Rc2 Nf4 27. Bf1 Kb8 28. Rac1 R2h7 29. b5 b6 30. Ra1 Rc8 31. a5 bxa5 32. Rxa5 Rc5 33. Rca2 f6 34. Ra6 Rd7 35. b6 Bxc4 36. Bxc4 Rxc4 37. bxa7+ Ka8 38. Rb6 Rc1+ 39. Kf2 Rxa7 40. Rxa7+ Kxa7 41. Rxd6 Rc2+ 42. Kf1 Rxg2 43. Nh5 Rb2 44. Nxf4 exf4 45. Rxf6 f3 46. Rf4 Rg2 47. e5 Kb7 48. e6 Kc7 49. e7 Kd7 50. Re4 Ke8 51. Ke1 g3 52. Kf1 Ra2 53. Ke1 g2 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Ammerlaan, Stefan"]
[Black "Drewes, Benno"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "41"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 h6 5. Nxd4 Nxd4 6. Qxd4 Qe7 7. 0-0 Qc5 8. c3 Qxd4 9. cxd4 d6 10. Nc3 g6 11. Nb5 Kd8 12. e5 Be6 13. d5 Bd7 14. Re1 g5 15. Bd2 Bxb5 16. Bxb5 a6 17. Bd3 Ne7 18. exd6 cxd6 19. Rac1 Rc8 20. Ba5+ Kd7 21. Rxe7+ 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Lui, Kachun"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "30"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nc3 Nc6 2. Nb1 Nb8 3. Nf3 Nf6 4. Ng1 Ng8 5. Nf3 Nf6 6. d4 d5 7. Bf4 h5 8. e3 Bg4 9. Nc3 Nc6 10. Be2 e6 11. 0-0 Bd6 12. Bxd6 cxd6 13. h4 Ke7 14. Ng5 Qe8 15. a3 Rh7 1/2-1/2

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "De Bruijn, Edwin"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "A25"]
[PlyCount "60"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6 5. d3 f5 6. a3 Nf6 7. b4 Rb8 8. Nf3 g6 9. Bg5 Bg7 10. Nd2 h6 11. Be3 Ng4 12. Nb3 Nxe3 13. fxe3 h5 14. Kd2 Qg5 15. Qg1 e4 16. dxe4 Bxc4 17. Nc1 Bxc3+ 18. Kxc3 Qf6+ 19. Kxc4 Qxa1 20. Kb3 Qb1+ 21. Kc3 a5 22. Nb3 axb4+ 23. axb4 Qxg1 24. Rxg1 0-0 25. Nd4 Nxd4 26. exd4 c6 27. e3 Kg7 28. h4 Ra8 29. Kb3 fxe4 30. Bxe4 Rfe8 0-1

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Ammerlaan, Richard"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "B00"]
[PlyCount "14"]
[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. e4 a5 2. d4 a4 3. Nf3 h5 4. Be3 h4 5. h3 Rh5 6. Bc4 e6 7. a3 c6 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Ammerlaan, Stefan"]
[Black "Huistra, Pieter"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "112"]
[EventDate "1998.??.??"]
[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 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. Be2 d6 8. 0-0 0-0 9. Kh1 d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. Bf3 Qd7 13. Nxc6 bxc6 14. Qxd7 Bxd7 15. Rad1 Bf5 16. Bxc6 Rac8 17. Bd7 Rxc2 18. Bxf5 gxf5 19. Rd7 e6 20. Rxa7 Rxb2 21. g3 Bf6 22. Rc1 Be5 23. a4 Ra2 24. a5 Kg7 25. Rc5 Kf6 26. h4 Bb8 27. Ra8 Bd6 28. Rxf8 Bxf8 29. Rb5 Bd6 30. Bb6 Kg6 31. Kg2 Kh5 32. Rb3 Kg4 33. Rd3 Be5 34. Kf1 Kh5 35. Rd7 Bc3 36. Ra7 Bxa5 37. Rxa5 Rd2 38. Be3 Rd7 39. f3 Kg6 40. Ke2 h5 41. Ra7 Rd8 42. Rc7 Rb8 43. Kd3 Re8 44. Rc6 Rb8 45. Rc5 Rd8+ 46. Bd4 Rd7 47. Ke3 Ra7 48. g4 Ra3+ 49. Kf4 Ra4 50. gxf5+ exf5 51. Rc6+ f6 52. Rxf6+ Kg7 53. Rd6+ Kf7 54. Kxf5 Ke7 55. Re6+ Kf7 56. Re4 Ra5+ 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Ammerlaan, Stefan"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "53"]
[EventDate "1998.??.??"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Bb4 7. Bd3 Bxc3+ 8. bxc3 d5 9. Bg5 e5 10. Nb5 a6 11. exd5 axb5 12. dxc6 bxc6 13. Qf3 Bd7 14. Rd1 0-0 15. Bf5 Ra7 16. Bxf6 gxf6 17. Qg4+ Kh8 18. Qh5 Bxf5 19. Rxd8 Rxd8 20. Qxf5 Rad7 21. Qxf6+ Kg8 22. 0-0 Ra8 23. Qxc6 Rda7 24. Ra1 Rxa2 25. Qxa8+ Rxa8 26. Rxa8+ Kg7 27. Rb8 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Ammerlaan, Stefan"]
[Black "Van Deurzen, Ties"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "67"]
[EventDate "1998.??.??"]
[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. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ncb4 9. a3 Nxc2+ 10. Kd1 Nd4 11. Bxd5+ Kd6 12. Qf7 Qe7 13. Ne4+ Kd7 14. Nc5+ Kd8 15. Nxb7+ Bxb7 16. Qxe7+ Bxe7 17. Bxb7 Rb8 18. Be4 h6 19. d3 Rf8 20. f3 Kd7 21. b4 Kd6 22. Be3 Bf6 23. Rc1 Rfc8 24. Bxd4 exd4 25. Rc6+ Ke7 26. Re1 Kd7 27. Ra6 Rf8 28. Bc6+ Kc8 29. Rxa7 Bg5 30. Re5 Bf4 31. Rea5 Kd8 32. Rd5+ Kc8 33. g3 Be3 34. Rd7 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Ammerlaan, Stefan"]
[Black "Wever, Dennis"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "67"]
[EventDate "1998.??.??"]
[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. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 Nf5 7. Qb3 h6 8. d6 hxg5 9. Bxf7+ Kd7 10. Qe6+ Kc6 11. d7+ Nd6 12. dxc8Q Qxc8 13. d3 Qxe6 14. Bxe6 Re8 15. Bb3 g4 16. Be3 Nf5 17. g3 Nxe3 18. fxe3 e4 19. d4 Bd6 20. Kf2 Ref8 21. Kg2 Nh7 22. Be6 Rf3 23. d5+ Kc5 24. Nd2 Ng5 25. b4+ Kb6 26. Nxf3 exf3+ 27. Kf1 Bxg3 28. Bxg4 Bh4 29. Rd1 Re8 30. Rd3 f2 31. c4 Re4 32. c5+ Ka6 33. Rd4 b5 34. Bc8# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Dekker, Els"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "B51"]
[PlyCount "114"]
[EventDate "1998.??.??"]
[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 Nc6 3. Nc3 d6 4. Bb5 Bd7 5. Bxc6 Bxc6 6. d3 e6 7. 0-0 Be7 8. a3 Qc7 9. b4 Bf6 10. Bb2 Ne7 11. g3 0-0 12. bxc5 dxc5 13. Re1 a6 14. Rb1 b5 15. d4 cxd4 16. Nxd4 Rad8 17. Nce2 e5 18. c3 exd4 19. cxd4 Bxe4 20. Rc1 Qb7 21. Nf4 Ng6 22. f3 Bxf3 23. Qd2 Nxf4 24. gxf4 Qd7 25. Qf2 Qg4+ 26. Qg3 Qxg3+ 27. hxg3 Bxd4+ 28. Bxd4 Rxd4 29. Rc3 Rd1 30. Rxd1 Bxd1 31. Rc5 g6 32. Rd5 Be2 33. Rd6 a5 34. Rd5 Rc8 35. Kf2 Bc4 36. Rd1 b4 37. axb4 axb4 38. Rc1 b3 39. Re1 b2 40. Rb1 Rb8 41. g4 Bd3 42. Re1 b1Q 43. Rxb1 Bxb1 44. g5 Rb3 45. Ke2 f6 46. gxf6 Kf7 47. f5 Bxf5 48. Kd2 Kxf6 49. Ke2 Rd3 50. Kf2 Ke5 51. Ke2 Kf4 52. Kf2 Re3 53. Kg2 Re2+ 54. Kf1 Kf3 55. Kg1 Bh3 56. Kh1 Kg3 57. Kg1 Re1# 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "L'Ami, Erwin"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "121"]
[EventDate "1998.??.??"]
[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. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qd8 9. Nxe4 Be7 10. Bg5 0-0 11. Bxe7 Nxe7 12. Qxd4 Qxd4 13. Nxd4 Ng6 14. Rad1 b6 15. Nb5 Bb7 16. c3 Rad8 17. f3 Bxe4 18. fxe4 c5 19. Nxa7 Rxd1 20. Rxd1 Ra8 21. Nc6 h6 22. Rd8+ Rxd8 23. Nxd8 Ne5 24. b4 cxb4 25. cxb4 Kf8 26. a4 Ke7 27. Nb7 Kd7 28. a5 bxa5 29. Nxa5 Kc7 30. Nb3 Kb6 31. Nd4 Nd3 32. Nf5 Nxb4 33. Nxg7 Kc6 34. Nf5 h5 35. Ng3 h4 36. Nf5 h3 37. gxh3 Kd7 38. Kf2 Ke6 39. Kf3 Ke5 40. Nh6 Kf6 41. Nf5 Nd3 42. h4 Ne5+ 43. Kg3 Kg6 44. Kf4 Nd3+ 45. Ke3 Ne5 46. h3 Kf6 47. h5 Kg5 48. h6 Kg6 49. Kd4 Nf3+ 50. Kd5 Ng5 51. h4 Nh7 52. Ke5 Nf8 53. h5+ Kg5 54. Kd6 Kf6 55. Kc7 Ke5 56. Kd8 Kxe4 57. Ke8 Nh7 58. Ng3+ Kf4 59. Kxf7 Kxg3 60. Kg7 Ng5 61. h7 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Porte, Henrik"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "77"]
[EventDate "1998.??.??"]
[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. Nf3 Bg4 4. e3 e6 5. cxd5 cxd5 6. Nc3 Nc6 7. Bd2 Bd6 8. Be2 Nf6 9. Rc1 0-0 10. Qb3 a6 11. Na4 Ne4 12. Qxb7 Na5 13. Qb6 Nxd2 14. Nxd2 Bf5 15. 0-0 e5 16. dxe5 Bxe5 17. b4 Nc4 18. Nxc4 dxc4 19. Bxc4 Qh4 20. f4 Bf6 21. Nc5 Rab8 22. Qa5 Rfe8 23. Nxa6 Be4 24. Nxb8 Qg4 25. g3 Rxb8 26. Qc7 Rf8 27. b5 h5 28. f5 Bxf5 29. Qf4 Qxf4 30. Rxf4 g6 31. Bd5 Rb8 32. a4 Bg5 33. Rc7 Bxf4 34. exf4 Rd8 35. Bxf7+ Kf8 36. b6 Bd7 37. b7 Bf5 38. Bxg6 Bh3 39. Bxh5 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Van den Oord, Pieter"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "A12"]
[PlyCount "129"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Bg4 4. e3 e6 5. Bb2 Nf6 6. Be2 Bd6 7. Nc3 Nbd7 8. d4 0-0 9. Nd2 Bf5 10. g4 Bg6 11. h4 Be4 12. Ndxe4 Nxe4 13. Qc2 Ndf6 14. Nxe4 Nxe4 15. Bd3 Bb4+ 16. Ke2 f5 17. gxf5 exf5 18. c5 Qe8 19. h5 f4 20. Bxe4 Qxe4 21. Qxe4 dxe4 22. Rag1 fxe3 23. fxe3 Rf7 24. Rh2 Re8 25. Rhg2 Ree7 26. Rg4 Ba5 27. Rf1 Bc7 28. Rxf7 Kxf7 29. d5 cxd5 30. Rxg7+ Ke6 31. Rg8 Rf7 32. h6 Rf3 33. Rh8 Bg3 34. Bd4 Rf2+ 35. Kd1 Rf7 36. Bg7 Rf1+ 37. Kc2 Rf2+ 38. Kb1 Rf3 39. Rxh7 Rxe3 40. Bd4 Re1+ 41. Kb2 Rh1 42. Rg7 Be5 43. Bxe5 Kxe5 44. h7 Kd4 45. b4 e3 46. Rxb7 e2 47. Re7 Rxh7 48. Rxe2 Kc4 49. a3 Kb5 50. Rd2 Kc4 51. Rc2+ Kb5 52. c6 Rc7 53. Rc5+ Kb6 54. a4 Rxc6 55. Rxd5 Rh6 56. Kc3 Rh3+ 57. Kc4 Rh4+ 58. Rd4 Rxd4+ 59. Kxd4 Kc6 60. Ke5 a6 61. Ke6 Kc7 62. Kd5 Kd7 63. Kc5 Kc7 64. a5 Kb7 65. Kd6 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "7"]
[White "Ammerlaan, Stefan"]
[Black "De Jong, Bert"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "81"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. f4 e5 10. Ndb5 Ne8 11. Nd5 a6 12. Bb6 Qd7 13. Nbc7 Nxc7 14. Bxc7 exf4 15. Rxf4 Bxb2 16. Rb1 Be5 17. Rf1 b5 18. c4 b4 19. h3 Bb7 20. Bg4 f5 21. exf5 gxf5 22. Nb6 Qxc7 23. Nxa8 Bxa8 24. Bxf5 Qg7 25. Qh5 Rf6 26. Qe8+ Qf8 27. Bxh7+ Kg7 28. Qxf8+ Kxf8 29. Rxf6+ Bxf6 30. Be4 a5 31. Kf2 Ke7 32. g4 Bh4+ 33. Kg2 Bb7 34. a3 Kd7 35. axb4 axb4 36. Bxc6+ Kxc6 37. Rxb4 Kc5+ 38. Rxb7 Kxc4 39. Kf3 d5 40. Kf4 d4 41. g5 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "1"]
[White "Ammerlaan, Stefan"]
[Black "Konijn, Bart"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "53"]
[EventDate "1997.??.??"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. b4 Bb6 7. Qb3 0-0 8. a4 a6 9. Bg5 h6 10. Bh4 Qe7 11. Na3 Bg4 12. Nc2 Bxf3 13. gxf3 g5 14. Rg1 Nh5 15. Ne3 Kh8 16. Bg3 Qd7 17. Ng4 Kh7 18. Rh1 f5 19. Be6 Qg7 20. Bxf5+ Kh8 21. h4 Nxg3 22. fxg3 gxh4 23. Rxh4 Rf6 24. 0-0-0 Qg5+ 25. Kb1 Raf8 26. Rdh1 Kg7 27. Nxf6 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "8"]
[White "Ammerlaan, Stefan"]
[Black "Koster, Ramon H"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "70"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Be2 Nf6 6. Nc3 Bb4 7. Bg5 Qa5 8. Bxf6 Bxc3+ 9. Kf1 gxf6 10. Nxc6 bxc6 11. bxc3 Qxc3 12. Rb1 Qa5 13. Rb2 Ke7 14. g3 Ba6 15. Bxa6 Qxa6+ 16. Kg2 Rab8 17. Qd4 Rxb2 18. Qxb2 Qb6 19. Rb1 Qxb2 20. Rxb2 a5 21. Rb6 Ra8 22. a4 Kd8 23. Kf3 Kc7 24. Rb3 Rg8 25. h4 f5 26. exf5 exf5 27. Kf4 Rg4+ 28. Kxf5 Rxa4 29. Kf6 Ra2 30. Rc3 a4 31. Kxf7 Kb6 32. Ke7 a3 33. Kxd7 Ra1 34. Rxc6+ Kb5 35. c4+ Kb4 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "5"]
[White "Ammerlaan, Stefan"]
[Black "Stotyn, Fabian"]
[Result "1-0"]
[ECO "B28"]
[PlyCount "109"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 Bb4 7. Bd2 0-0 8. Bd3 Nc6 9. 0-0 d6 10. a3 Bc5 11. Bg5 h6 12. Bh4 Be6 13. Qe2 Qe7 14. Rad1 Rfd8 15. Bc4 b5 16. Nd5 Bxd5 17. Bxd5 Rac8 18. Rd2 Rd7 19. Rfd1 Bb6 20. h3 Bd8 21. Rd3 Qe8 22. Bg3 Bb6 23. c3 Nh5 24. Bh2 Rcc7 25. Bxc6 Rxc6 26. Nxe5 Bxf2+ 27. Kxf2 Nf6 28. Nxc6 Rc7 29. Rxd6 Nxe4+ 30. Kg1 Nxd6 31. Qxe8+ Nxe8 32. Bxc7 Nxc7 33. Rd7 Ne6 34. Nd4 Nc5 35. Rd5 Nd3 36. Nxb5 Nxb2 37. Nc7 Nc4 38. Nxa6 Nxa3 39. Rd8+ Kh7 40. Rc8 Nb5 41. c4 Nd6 42. Rc7 f5 43. c5 Nb5 44. Rb7 Nd4 45. Nb4 f4 46. c6 f3 47. gxf3 Nxf3+ 48. Kf2 Ng5 49. c7 Nxh3+ 50. Kg3 Ng5 51. c8Q h5 52. Qf5+ Kh6 53. Rb6+ Ne6 54. Rxe6+ g6 55. Qxg6# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "3"]
[White "Ammerlaan, Stefan"]
[Black "Van de Heyden, A."]
[Result "0-1"]
[ECO "B84"]
[PlyCount "86"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Qc7 8. 0-0 Nbd7 9. f4 b5 10. Bf3 Bb7 11. a3 Be7 12. Nb3 Rc8 13. Qe1 0-0 14. g4 Nb6 15. g5 Nfd7 16. Nd2 Rfd8 17. Qg3 Nc4 18. Nxc4 Qxc4 19. Be2 Qc7 20. Bd3 Nc5 21. Qh4 Nxd3 22. cxd3 d5 23. Rf3 g6 24. Bd4 h5 25. Bf6 dxe4 26. Nxe4 Bxe4 27. dxe4 Rd2 28. Bxe7 Qxe7 29. Qe1 Qc5+ 30. Qe3 Qxe3+ 31. Rxe3 Rxb2 32. Rd1 Rcc2 33. Red3 Rg2+ 34. Kf1 Rbf2+ 35. Ke1 Rxf4 36. Rd8+ Kg7 37. Ra8 Rg1+ 38. Ke2 Rxd1 39. Kxd1 Rxe4 40. Rxa6 Ra4 41. Rxa4 bxa4 42. Kd2 f5 43. Kc3 f4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "6"]
[White "Groenhuis, Vincent"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "C46"]
[PlyCount "52"]
[EventDate "1997.??.??"]
[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 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Nxe5 Nxe5 5. d4 Bxd4 6. Qxd4 d6 7. Bf4 f6 8. Be2 Ne7 9. 0-0 N7c6 10. Qd2 Be6 11. Bg3 Qe7 12. Nd5 Qf7 13. f4 Ng4 14. h3 Nh6 15. Bc4 0-0-0 16. f5 Bxd5 17. Bxd5 Qe7 18. Qc3 Rde8 19. Rfe1 Nd8 20. Rad1 Nhf7 21. Qa5 a6 22. Rd3 Ne5 23. Bxe5 Qxe5 24. Rb3 c6 25. Qc3 Qxc3 26. Rxc3 Kb8 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "4"]
[White "Porte, Henrik"]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "A51"]
[PlyCount "109"]
[EventDate "1997.??.??"]
[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 e5 3. e3 exd4 4. exd4 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 0-0 7. Nf3 d5 8. Nc3 Re8+ 9. Be2 Bg4 10. 0-0 Ne4 11. Nxe4 dxe4 12. Ne1 Bxe2 13. Qxe2 Qxd4 14. Nf3 Qd7 15. Nd2 Na6 16. Rfd1 Qe6 17. Nb3 Nb4 18. Nd4 Qg6 19. Nb5 Qb6 20. Rd7 c6 21. Nc7 Rad8 22. Nxe8 Rxd7 23. Nf6+ gxf6 24. Qg4+ Kf8 25. Qxd7 Nd3 26. Qd6+ Kg7 27. Qg3+ Kf8 28. b3 Qd4 29. Rf1 Qe5 30. Qxe5 fxe5 31. Rd1 Nb4 32. Rd2 f5 33. Re2 Kf7 34. f3 exf3 35. Rxe5 Kf6 36. Re3 fxg2 37. Re2 Nd3 38. Rxg2 f4 39. Rd2 Ne5 40. Rf2 f3 41. Rd2 Kf5 42. Rd4 Ng4 43. h3 Ne5 44. Kf2 c5 45. Rh4 a6 46. Rxh7 Kf4 47. Rh4+ Kg5 48. Re4 Nd3+ 49. Kxf3 Nb4 50. Rg4+ Kh5 51. Rg7 b5 52. cxb5 axb5 53. Rb7 Nxa2 54. Rxb5 Kh4 55. Rxc5 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "2"]
[White "Van Weersel, Arlette"]
[Black "Ammerlaan, Stefan"]
[Result "0-1"]
[ECO "C51"]
[PlyCount "82"]
[EventDate "1997.??.??"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 d6 7. Qb3 Na5 8. Bxf7+ Kf8 9. Qa4 Kxf7 10. Qxa5 exd4 11. cxd4 c6 12. Qxd8 Bxd8 13. Nc3 Nf6 14. e5 Re8 15. 0-0 dxe5 16. Nxe5+ Kg8 17. Ba3 Bb6 18. Nf3 Bg4 19. Rad1 Rad8 20. Bc5 Bxc5 21. dxc5 Bxf3 22. gxf3 Rxd1 23. Rxd1 Re5 24. Na4 Nd5 25. Rb1 Re7 26. Kf1 Kf7 27. Re1 Rxe1+ 28. Kxe1 Ke6 29. Ke2 Ke5 30. a3 Kd4 31. h4 Nc3+ 32. Nxc3 Kxc3 33. Ke3 Kc4 34. f4 Kxc5 35. h5 Kd5 36. f3 c5 37. a4 b6 38. Kd3 a6 39. Kc3 b5 40. axb5 axb5 41. Kb3 Ke6 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "9"]
[White "Veenstra, Petra"]
[Black "Ammerlaan, Stefan"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "68"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Bb4 7. Bd3 Qa5 8. 0-0 Bxc3 9. bxc3 0-0 10. Bd2 Qe5 11. f4 Qc5 12. e5 Nd5 13. Qh5 g6 14. Qh6 Nxd4 15. cxd4 Qxd4+ 16. Kh1 Ne3 17. Bxe3 Qxe3 18. Rf3 Qd4 19. Raf1 f5 20. exf6 Qxf6 21. Rg3 Qg7 22. Qh4 b6 23. Bc4 d5 24. Bd3 Bd7 25. c4 d4 26. Re1 Rac8 27. Kg1 Rc5 28. Re2 Re8 29. Rg5 Qf6 30. Rxg6+ Qxg6 31. Bxg6 hxg6 32. Qf6 Rxc4 33. Qxg6+ Kh8 34. Qf6+ Kg8 1/2-1/2

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "11"]
[White "Ammerlaan, Stefan"]
[Black "Muris, Saskia"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "37"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. Qd2 Bd7 10. f4 e5 11. fxe5 dxe5 12. Nf3 Bg4 13. Rad1 Qxd2 14. Rxd2 Rad8 15. Rxd8 Rxd8 16. h3 Bxf3 17. Rxf3 a6 18. Bg5 Rd6 19. Bxf6 1/2-1/2

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "9"]
[White "Ammerlaan, Stefan"]
[Black "Muris, Yvo"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "46"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. b3 Qb6 6. Bb2 Nh6 7. Be2 Nf5 8. c3 cxd4 9. Nxd4 Ncxd4 10. cxd4 Bb4+ 11. Kf1 0-0 12. a3 Be7 13. b4 Bd7 14. g4 Nh6 15. Nc3 f6 16. exf6 Bxf6 17. Nb1 a5 18. Rg1 Bh4 19. f3 Be7 20. bxa5 Qxb2 21. Nd2 Qxd4 22. g5 Nf5 23. g6 Ne3+ 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "7"]
[White "Ammerlaan, Stefan"]
[Black "Van de Merwe, M."]
[Result "1-0"]
[ECO "C02"]
[PlyCount "75"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. e5 Nc6 4. Nf3 Bb4+ 5. c3 Ba5 6. Bd3 f6 7. exf6 Nxf6 8. Bg5 h6 9. Bh4 Qd6 10. Bg3 Qd7 11. Bb5 a6 12. Ba4 b5 13. Bc2 Bb7 14. Bg6+ Kf8 15. b4 Bb6 16. Nbd2 a5 17. a3 axb4 18. axb4 Rxa1 19. Qxa1 Ke7 20. 0-0 Ra8 21. Qb2 Ba6 22. Re1 Nd8 23. Ne5 Qd6 24. Bh5 Qxe5 25. Bxe5 Nxh5 26. Ra1 Nf7 27. Nf3 Nxe5 28. Nxe5 Nf4 29. Qc2 c6 30. Ng6+ Nxg6 31. Qxg6 Rg8 32. Rxa6 Kd7 33. Rxb6 Ra8 34. h3 Ra1+ 35. Kh2 Ra2 36. Qxg7+ Kd6 37. Rb7 c5 38. Qd7# 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "12"]
[White "Betlem, H."]
[Black "Ammerlaan, Stefan"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "35"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 0-0 6. Bg5 Be7 7. h3 d6 8. 0-0 Be6 9. Bb3 Qd7 10. Qd2 h6 11. Bxf6 Bxf6 12. Nd5 Ne7 13. Nxf6+ gxf6 14. Qxh6 f5 15. Ng5 Rfd8 16. Bxe6 fxe6 17. Qh7+ Kf8 18. Qf7# 1-0

