[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Huistra, Heikel"]
[Black "Markus, Aernout"]
[Result "0-1"]
[ECO "D11"]
[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. d4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 e6 5. 0-0 h6 6. b3 Bd6 7. Bb2 0-0 8. Nbd2 Nbd7 9. c4 c6 10. Re1 Qe7 11. Nh4 Bg4 12. f4 c5 13. dxc5 Bxc5+ 14. Kh1 Bh5 15. h3 Bf2 16. Kh2 Bxe1 17. Qxe1 Rac8 18. e4 dxe4 19. Nxe4 Nxe4 20. Qxe4 Nf6 21. Qxb7 Qxb7 22. Bxb7 Rcd8 23. Bc3 Rd3 24. Ba5 g5 25. fxg5 hxg5 26. Ng2 Bf3 27. Ba6 Bxg2 28. Kxg2 Ne4 29. g4 Kg7 30. Rc1 Rg3+ 31. Kf1 Rxh3 32. Kg2 Rg3+ 33. Kf1 f5 34. Bb4 Rf7 35. c5 fxg4+ 36. Ke2 Rf2+ 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Rupert, Casper"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "E18"]
[PlyCount "123"]
[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. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 b6 7. Nc3 Bb7 8. Qc2 Nbd7 9. Bf4 a6 10. Rfd1 c5 11. cxd5 Nxd5 12. dxc5 Nxf4 13. gxf4 bxc5 14. Ne5 Bxg2 15. Kxg2 Ra7 16. Nc6 Qa8 17. Qe4 Nf6 18. Qf3 Rc7 19. Nxe7+ Rxe7 20. Na4 Rc7 21. Rac1 Qa7 22. Rd3 Nd5 23. Rcd1 Nb4 24. Rd8 Nxa2 25. Rxf8+ Kxf8 26. Rd8+ Ke7 27. Ra8 Qb7 28. Qxb7 Rxb7 29. Rxa6 Nc1 30. Nxc5 Rxb2 31. e3 Rc2 32. Ra7+ Kf6 33. Ne4+ Kg6 34. Rd7 h6 35. Nd2 Ne2 36. Nf3 f6 37. Re7 Nc3 38. Nd4 Ra2 39. Nxe6 Nd1 40. e4 Nxf2 41. Rxg7+ Kh5 42. Kf3 Nd1 43. f5 Ra3+ 44. Ke2 Nc3+ 45. Ke3 Nd1+ 46. Kd2 Nf2 47. Nc5 Ng4 48. Nd3 Ra2+ 49. Kc3 Nxh2 50. Nf4+ Kh4 51. Rg6 Ng4 52. Kd4 Rd2+ 53. Kc5 Kg3 54. Ne6 h5 55. e5 fxe5 56. f6 Rf2 57. Ng5 Kh4 58. f7 Nh6 59. Rg7 e4 60. Nxe4 Rxf7 61. Rxf7 Nxf7 62. Nf6 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Crefcoeur, Remco"]
[Result "1-0"]
[ECO "A46"]
[PlyCount "45"]
[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. Nf3 c5 3. dxc5 e6 4. c4 Bxc5 5. Nc3 b6 6. g3 Nc6 7. Bg2 Bb7 8. 0-0 Qc7 9. b3 0-0-0 10. a3 d5 11. Nb5 Qb8 12. Bf4 e5 13. Bh3+ Nd7 14. Nxe5 Ncxe5 15. b4 a6 16. Nc3 d4 17. bxc5 dxc3 18. Qd4 Rhe8 19. cxb6 g6 20. Qc5+ Bc6 21. Bxe5 f5 22. Qxc6+ Qc7 23. Qxc7# 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Van Rosmalen, Joost"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "B72"]
[PlyCount "49"]
[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 g6 6. Be3 Bg7 7. Be2 0-0 8. Qd2 Bd7 9. Bh6 Nc6 10. Bxg7 Kxg7 11. 0-0-0 Nxd4 12. Qxd4 Kg8 13. h4 Be6 14. h5 Qa5 15. hxg6 fxg6 16. Bc4 Bf7 17. f4 Qc5 18. Nd5 Qxd4 19. Nxe7+ Kg7 20. Rxd4 Rae8 21. Bxf7 Rxf7 22. Nd5 Rxe4 23. Rxe4 Nxe4 24. Re1 Nf6 25. Ne3 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Stange, Sven"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "98"]
[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. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 d5 6. b3 Bd6 7. Bb2 0-0 8. c4 c5 9. e3 Nc6 10. Nc3 dxc4 11. bxc4 Na5 12. Qe2 cxd4 13. exd4 Rc8 14. Nd2 Ba6 15. Nb5 Nxc4 16. Nxa7 Rc7 17. Nc6 Qc8 18. Nxc4 Rxc6 19. Bxc6 Qxc6 20. Ne5 Bxe2 21. Nxc6 Bxf1 22. Kxf1 Rc8 23. Ne5 Rc2 24. Bc1 Nd5 25. Ng4 Kf8 26. Ne3 Nxe3+ 27. Bxe3 b5 28. Ke1 Ke7 29. Kd1 Rc4 30. Rb1 Rb4 31. Rxb4 Bxb4 32. Bd2 Bd6 33. Kc2 h5 34. Kb3 Kd7 35. Bb4 Bc7 36. h3 f5 37. Bf8 g5 38. Kb4 Kc6 39. Bh6 g4 40. h4 Bd6+ 41. Ka5 Ba3 42. Bd2 Bb2 43. Be3 Bc3+ 44. Ka6 b4 45. Ka7 Kd5 46. Kb6 Bxd4+ 47. Bxd4 Kxd4 48. Kb5 Kc3 49. Kc5 e5 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Tates, Thomas"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "86"]
[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. b3 e5 2. Bb2 Nc6 3. c4 g6 4. Nf3 Bg7 5. Qc2 Nge7 6. e3 d6 7. d3 0-0 8. Be2 Bf5 9. a3 Rc8 10. Nbd2 Nb8 11. 0-0 Nd7 12. b4 c6 13. Qb3 Be6 14. Ng5 Bf5 15. Nge4 d5 16. Nd6 Rb8 17. c5 Be6 18. Qc2 Nc8 19. Nxc8 Rxc8 20. Rad1 Qe7 21. d4 e4 22. Rfe1 Qg5 23. Bf1 Bg4 24. Ra1 h5 25. Kh1 Nf6 26. f4 Qh6 27. h3 Kh7 28. Nb1 Kg8 29. Nd2 Nh7 30. Nb3 Rce8 31. Na5 Bc8 32. Nb3 g5 33. Qf2 Re6 34. fxg5 Nxg5 35. h4 Nh7 36. Be2 f5 37. g3 Nf6 38. Bc1 Ng4 39. Bxg4 fxg4 40. Qg1 Ref6 41. Bd2 Rf3 42. Rf1 Qf6 43. a4 Rxf1 0-1

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Plukkel, Sjoerd"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "83"]
[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 c6 2. c4 d5 3. cxd5 cxd5 4. e5 Nc6 5. d4 Bf5 6. Nf3 e6 7. Nc3 Bb4 8. Be3 Nge7 9. Be2 Bg6 10. 0-0 Nf5 11. Rc1 0-0 12. Na4 Rc8 13. a3 Be7 14. b4 a5 15. b5 Bxa3 16. Ra1 Nb4 17. Rxa3 Nc2 18. Rb3 Ncxe3 19. fxe3 Ng3 20. hxg3 Bc2 21. Qd2 Bxb3 22. Nc5 Bc4 23. Nxb7 Qb6 24. Nd6 Rc7 25. Bxc4 dxc4 26. Ng5 c3 27. Qc2 g6 28. Nge4 Ra8 29. Qf2 c2 30. Rc1 a4 31. Nc5 a3 32. Rxc2 Rca7 33. Na6 f5 34. Qd2 Rxa6 35. bxa6 Qb1+ 36. Kh2 Rxa6 37. Qc1 a2 38. Rc8+ Kg7 39. Qc7+ Kh6 40. Rh8 a1Q 41. Qxh7+ Kg5 42. Qh4# 1-0

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.06"]
[Round "9"]
[White "Van de Schouw, Sien"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "46"]
[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. Bc4 Bc5 4. d3 Nf6 5. h3 h6 6. Nc3 d6 7. 0-0 Qe7 8. Bd5 Bd7 9. Qe2 Rb8 10. Na4 Nd4 11. Nxd4 Bxd4 12. c3 Bxa4 13. cxd4 Nxd5 14. exd5 Bd7 15. dxe5 Qxe5 16. Qxe5+ dxe5 17. Re1 f6 18. d4 0-0 19. dxe5 Rfe8 20. Bf4 g5 21. Bg3 f5 22. e6 Bb5 23. Bxc7 Rbc8 1/2-1/2

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Springelkamp, Henriet"]
[Result "1/2-1/2"]
[ECO "C47"]
[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 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Be3 Bb6 7. Bb5 0-0 8. 0-0 h6 9. Nd5 Nxe4 10. Nxb6 axb6 11. Nxc6 bxc6 12. Bd3 d5 13. Bxe4 dxe4 14. Qxd8 Rxd8 15. a3 Bf5 16. Rad1 c5 17. c3 Bg4 18. Rc1 Be2 19. Rfe1 Bd3 20. Bf4 Rd7 21. f3 exf3 22. gxf3 c6 23. Kf2 Bf5 24. Rg1 Kh7 25. Rg3 Ra4 26. Rcg1 f6 27. Bd6 Raa7 28. Bf4 c4 29. Be3 Rab7 30. Bd4 b5 31. h4 Bd3 32. h5 Re7 33. Be3 Re6 34. f4 Ree7 1/2-1/2

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "7"]
[White "Volkers, Annemarie"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "131"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bb5 Be7 7. f4 a6 8. Bxc6 bxc6 9. e5 Nd5 10. Nxd5 cxd5 11. 0-0 g6 12. Kh1 Bb7 13. c3 a5 14. Be3 Rc8 15. Rc1 Ba6 16. Rf3 Rb8 17. b3 Rc8 18. g4 h5 19. g5 d6 20. Rg3 Qc7 21. exd6 Bxd6 22. Qd2 Ke7 23. Rf3 Qd7 24. Re1 Kd8 25. b4 axb4 26. cxb4 Qa4 27. Rb1 Bc4 28. Rb2 Rb8 29. Qc2 Qxc2 30. Rxc2 Kd7 31. a3 Ra8 32. Bc1 Rhc8 33. Bb2 Ke7 34. Ne2 Ba2 35. Bf6+ Ke8 36. Rxa2 Bxb4 37. Kg2 Bd6 38. h4 Rc4 39. Rc3 Re4 40. Kf3 Kd7 41. Rb3 Ke8 42. Bb2 Raa4 43. Bc1 Ra8 44. Rb6 Bc7 45. Rc6 Kd7 46. Rc3 Ba5 47. Rb3 Ra7 48. Bd2 Bc7 49. Rb4 Rxb4 50. Bxb4 Bb6 51. a4 Rc7 52. Bc3 Rc4 53. a5 Ba7 54. Rb2 Rc7 55. Bd4 Kc8 56. Bb6 Rb7 57. Nc3 Bxb6 58. Rxb6 Ra7 59. Rb5 Kc7 60. Ke3 Kc6 61. Kd4 Kd6 62. Rb6+ Kd7 63. a6 Kc8 64. Nb5 Ra8 65. a7 Kd7 66. Rb8 1-0

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.04"]
[Round "6"]
[White "Stuijts, Marielle"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B45"]
[PlyCount "148"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Nf3 Bc5 7. Be2 h6 8. Be3 Bxe3 9. fxe3 Qb6 10. Rb1 Qxe3 11. Qd2 Qxd2+ 12. Nxd2 Nd4 13. Rc1 Nxe2 14. Nxe2 b6 15. 0-0 0-0 16. Nc3 Bb7 17. Rf3 d5 18. exd5 Nxd5 19. Rg3 Nxc3 20. Rxc3 Rac8 21. Rg3 Rfd8 22. Nb3 Bd5 23. a3 Bxb3 24. Rxb3 Rd2 25. c3 Rcd8 26. h3 Re2 27. g4 Rdd2 28. Rb4 Rxb2 29. Rxb2 Rxb2 30. Rd1 Rb3 31. Rd8+ Kh7 32. Rd7 Kg6 33. Rxa7 Rxc3 34. Kg2 e5 35. h4 e4 36. h5+ Kf6 37. Rd7 Rxa3 38. Rd6+ Ke7 39. Rxb6 Rf3 40. Rb4 f5 41. gxf5 Rxf5 42. Rxe4+ Kf6 43. Rh4 Kg5 44. Kg3 Rc5 45. Rg4+ Kf6 46. Rh4 Rc3+ 47. Kg2 Kg5 48. Rh1 Rc4 49. Kg3 Rg4+ 50. Kf3 Rh4 51. Rg1+ Kf6 52. Rg6+ Kf7 53. Ra6 Rxh5 54. Kg4 Rg5+ 55. Kf4 Rg6 56. Ra7+ Kg8 57. Kf5 Kh7 58. Rb7 Rf6+ 59. Kg4 Kg6 60. Rb1 h5+ 61. Kh4 Kh6 62. Rb5 Rf4+ 63. Kh3 g5 64. Rb6+ Kg7 65. Rb7+ Rf7 66. Rb5 Kg6 67. Kg3 Rf5 68. Rb6+ Rf6 69. Rb5 h4+ 70. Kg4 Rf4+ 71. Kh3 Rf3+ 72. Kg2 g4 73. Kh2 Rf2+ 74. Kg1 Rf5 0-1

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "4"]
[White "De Smet, Eline"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "79"]
[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. Nc3 Nf6 4. d3 Be7 5. Be2 d6 6. 0-0 Be6 7. Be3 d5 8. exd5 Bxd5 9. Nxd5 Qxd5 10. a3 h6 11. h3 0-0 12. Qd2 e4 13. dxe4 Qxd2 14. Nxd2 Rad8 15. Bd3 Nd4 16. Bxd4 Rxd4 17. Nf3 Rdd8 18. Rab1 Nd7 19. Rfe1 Nc5 20. Red1 Rd7 21. e5 Rfd8 22. Be2 Ne4 23. Rxd7 Rxd7 24. Rd1 Rxd1+ 25. Bxd1 Bc5 26. Kf1 Bxf2 27. Be2 Be3 28. b3 Kf8 29. Bd3 Nc5 30. Ke2 Bf4 31. Kf2 Nd7 32. Be4 b6 33. g3 Bxe5 34. Bc6 Bxg3+ 35. Kxg3 Nf6 36. a4 Nh5+ 37. Kg4 Nf6+ 38. Kf5 Ke7 39. Be4 g6+ 40. Ke5 1/2-1/2

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "5"]
[White "Huistra, Heikel"]
[Black "Pruijssers, Karin"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "99"]
[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. Nxd4 Nxd4 5. Qxd4 c5 6. Qa4 b6 7. Nc3 Bb7 8. Ba6 Bc6 9. Bb5 Ne7 10. Bg5 f6 11. Bh4 g5 12. Bg3 Bg7 13. Bxc6 Nxc6 14. Qc4 Nb4 15. Qe2 0-0 16. 0-0 Re8 17. a3 Nc6 18. Rad1 Nd4 19. Qd3 Rc8 20. Qc4+ Kh8 21. Rd2 Qe7 22. f3 Qe6 23. Qxe6 Rxe6 24. Bf2 Nc6 25. Rxd7 a6 26. Rb7 Na5 27. Rd7 Nc4 28. Rfd1 Ree8 29. Na4 Ne5 30. R7d5 Nc4 31. b3 Nxa3 32. Nxb6 Rb8 33. Bxc5 Nb5 34. R1d3 Nc7 35. Rd7 Ne6 36. Na4 Rbc8 37. Rc3 f5 38. Rc4 fxe4 39. fxe4 Nxc5 40. Nxc5 Bf8 41. b4 a5 42. c3 Re5 43. Rd5 Bxc5+ 44. Rdxc5 Rexc5 45. Rxc5 Rxc5 46. bxc5 a4 47. c6 a3 48. c7 a2 49. c8Q+ Kg7 50. Qa6 1-0

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Zomer, Anoek"]
[Result "0-1"]
[ECO "C45"]
[PlyCount "132"]
[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. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 a6 8. Ba4 0-0 9. Qd2 Qg6 10. Nxc6 dxc6 11. Bxc5 Qxg2 12. Rf1 Qxe4+ 13. Qe3 Qxa4 14. b3 Qb5 15. Rg1 Nf5 16. c4 Nxe3 17. cxb5 Nc2+ 18. Kd2 Nxa1 19. Bxf8 Kxf8 20. Kc3 Bf5 21. Kb2 Nc2 22. Rg5 Nd4 23. Kc3 Nxb5+ 24. Kb2 Bxb1 25. Kxb1 h6 26. Rg3 Re8 27. Rf3 Re2 28. a4 Nd4 29. Rd3 Ne6 30. Rf3 Re1+ 31. Ka2 Rh1 32. Rh3 Ng5 33. Rh4 Rg1 34. f4 Rg2+ 35. Ka3 Nf3 36. Rh3 Nxh2 37. Rd3 Ke7 38. Re3+ Kf6 39. Rd3 Re2 40. Rd8 Nf3 41. Rb8 b6 42. Ra8 a5 43. Ra7 Re7 44. b4 axb4+ 45. Kxb4 h5 46. Ra8 Re4+ 47. Ka3 h4 48. Rh8 Rxf4 49. Rc8 h3 50. Rxc7 Rc4 51. Rd7 Rd4 52. Rc7 Rd6 53. Rc8 h2 54. Rh8 Rd1 55. Rxh2 Nxh2 56. Kb4 g5 57. a5 bxa5+ 58. Kxa5 g4 59. Kb6 g3 60. Kc7 g2 61. Kb6 g1Q+ 62. Kc7 Qa7+ 63. Kxc6 Qa4+ 64. Kb6 Rc1 65. Kb7 Qb4+ 66. Ka6 Ra1# 0-1

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "3"]
[White "Muhren, Melissa"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "73"]
[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 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 Nf6 6. Bd3 Bc5 7. 0-0 d6 8. h3 h6 9. Qe2 0-0 10. Be3 Bb6 11. Nc3 Re8 12. Na4 Bc7 13. Nc3 Be6 14. Rad1 a6 15. Bc4 Qe7 16. Nd5 Qd8 17. Rfe1 Ba5 18. Rf1 Bc7 19. a3 a5 20. Bb5 Rf8 21. Nh2 Rc8 22. Nxc7 Qxc7 23. Qf3 Kh7 24. Ng4 Nxg4 25. hxg4 Qd7 26. Be2 Rcd8 27. g5 Rg8 28. Qh5 Nd4 29. Bxd4 exd4 30. Rxd4 Rc8 31. Bd3 Rgf8 32. e5+ f5 33. gxf6+ Kg8 34. Rxd6 Qf7 35. Bg6 Qc7 36. Rxe6 b5 37. Re7 1-0

[Event "NED-ch U14 Girls"]
[Site "Leiden"]
[Date "2000.05.01"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Visschedijk, Gillian"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "111"]
[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. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Bb6 8. Qd2 0-0 9. 0-0 a6 10. Ba4 Ne5 11. Bb3 N7c6 12. Nxc6 Qxc6 13. Bxb6 Qxb6 14. Qd4 Qxd4 15. cxd4 Nc6 16. Rd1 d6 17. Nc3 Re8 18. Rd3 Bd7 19. f3 Rad8 20. Nd5 Rc8 21. Ba4 Nb8 22. Bxd7 Nxd7 23. Rc1 c6 24. Nf4 Nf6 25. Rdc3 Rc7 26. Kf2 Kf8 27. d5 Rec8 28. a3 Ke7 29. dxc6 Rxc6 30. Rxc6 Rxc6 31. Rxc6 bxc6 32. Nd3 c5 33. b3 Nd7 34. Nf4 Nb6 35. Nd5+ Nxd5 36. exd5 Kf6 37. f4 g5 38. Kf3 h5 39. g4 gxf4 40. gxh5 Kg5 41. h6 Kxh6 42. Kxf4 Kg6 43. h3 a5 44. a4 Kf6 45. h4 Kg6 46. Kg4 Kf6 47. h5 Ke5 48. Kg5 Kxd5 49. h6 c4 50. bxc4+ Kxc4 51. h7 Kb4 52. h8Q Kxa4 53. Qe8+ Kb4 54. Qxf7 a4 55. Qa2 d5 56. Kf4 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Huistra, Heikel"]
[Black "Brokken, Dennis"]
[Result "1/2-1/2"]
[ECO "A40"]
[PlyCount "90"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. d4 b6 2. c4 Bb7 3. Nc3 e6 4. e4 Bb4 5. Bd3 f5 6. d5 fxe4 7. Bxe4 Qh4 8. Qf3 Nf6 9. Bc2 Qxc4 10. Bb3 Qe4+ 11. Qxe4 Nxe4 12. Nge2 Bxd5 13. Bxd5 exd5 14. 0-0 c6 15. a3 Bxc3 16. Nxc3 Nxc3 17. bxc3 d6 18. Re1+ Kf7 19. Bg5 Re8 20. Rxe8 Kxe8 21. Re1+ Kf7 22. Re7+ Kf8 23. Rc7 Na6 24. Rxc6 Re8 25. Kf1 Re6 26. Rc8+ Kf7 27. Ra8 Kg6 28. Bh4 Nc7 29. Rxa7 Nb5 30. Ra6 Nxc3 31. Rxb6 d4 32. Rb4 Re4 33. Bg3 Kf5 34. Bxd6 d3 35. Rxe4 Kxe4 36. Ke1 Kd5 37. Bb4 Ne2 38. Kd2 Kc4 39. g3 Nd4 40. h4 Ne6 41. f4 h5 42. Kd1 g6 43. Be1 Kd4 44. a4 Nc7 45. a5 Ke3 1/2-1/2

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "96"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 c5 5. e3 Nc6 6. 0-0 b6 7. b3 Ba6 8. Re1 Rc8 9. a3 Be7 10. Bb2 0-0 11. Nbd2 Na5 12. Rc1 c4 13. bxc4 dxc4 14. c3 Bb5 15. a4 Bc6 16. e4 Qe8 17. Ra1 h6 18. Ne5 Bb7 19. Qe2 Nd7 20. Ng4 Ba6 21. Bc1 Nf6 22. e5 Nh7 23. Nf1 Nb3 24. Nxh6+ Kh8 25. Bf4 gxh6 26. Bxh6 Rg8 27. Rad1 Bg5 28. Bxg5 Rxg5 29. h4 Rg7 30. Be4 Qe7 31. Kg2 Bb7 32. d5 exd5 33. Bf5 d4+ 34. Kh2 d3 35. Qh5 Rd8 36. Ne3 Qxe5 37. Nxc4 Qd5 38. Ne3 Qf3 39. Qxf3 Bxf3 40. Rxd3 Rxd3 41. Bxd3 Nc5 42. Bc4 Nxa4 43. Nf5 Rg8 44. Re7 Rf8 45. Nh6 Bh5 46. Rxa7 Nxc3 47. g4 Bg6 48. h5 Kg7 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Nieuwenbroek, Mark"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "90"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c3 Bf5 5. Bd3 Bg6 6. Nf3 Nc6 7. 0-0 e6 8. Bf4 Nf6 9. Re1 Be7 10. Bc2 Qb6 11. Bxg6 hxg6 12. Qb3 Qxb3 13. axb3 Ne4 14. Nbd2 Nxd2 15. Nxd2 g5 16. Bg3 Kd7 17. b4 f5 18. b5 Nd8 19. Be5 Rh7 20. Ra2 Nf7 21. Rea1 Nxe5 22. dxe5 Bc5 23. b4 Bb6 24. Nf1 Rc8 25. Rc2 f4 26. g3 g6 27. Rd1 Ke7 28. Rd3 fxg3 29. Rxg3 Rh5 30. Rg4 Rh4 31. Rxg5 Rxb4 32. Rxg6 Rxb5 33. Rg7+ Ke8 34. h4 d4 35. Rg8+ Kd7 36. Rxc8 Kxc8 37. cxd4+ Kd7 38. Rd2 Rd5 39. Ne3 Rxd4 40. Rxd4+ Bxd4 41. Ng4 a5 42. h5 Ke7 43. h6 Kf7 44. Kf1 a4 45. f4 a3 0-1

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Hiemstra, Sebastian"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "120"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nf3 Bb4 8. Bc4 0-0 9. Bg5 Bxc3+ 10. bxc3 d6 11. 0-0 Qe7 12. Qd3 Be6 13. Rfd1 Bxc4 14. Qxc4 Rfd8 15. Rd3 h6 16. Bh4 Rd7 17. Rad1 Rad8 18. Bg3 Rc7 19. Bh4 Rcd7 20. h3 Qe6 21. Qb3 Ne7 22. Bxf6 Qxf6 23. c4 Qe6 24. Qc3 Nc6 25. Kh1 f6 26. Re3 Rc8 27. Qd3 Ne7 28. Qb3 Qxc4 29. Rc3 Qxb3 30. Rxc8+ Nxc8 31. cxb3 Rc7 32. Nh4 Kf7 33. Rd3 Rd7 34. Nf5 h5 35. Rg3 g6 36. Nh4 g5 37. Nf5 Ne7 38. Ne3 Ke6 39. Nc4 d5 40. exd5+ Rxd5 41. Rf3 b5 42. axb5 axb5 43. Ne3 Rd3 44. Nf1 Rxf3 45. gxf3 Nd5 46. Kg2 h4 47. Nd2 Kd6 48. Ne4+ Ke6 49. Nc5+ Kf5 50. Ne4 b4 51. Nd6+ Ke6 52. Ne4 Nf4+ 53. Kh2 Nd3 54. Kg1 Nc1 55. Nd2 f5 56. Kf1 Kd5 57. Ke1 Nd3+ 58. Kf1 Nf4 59. Nc4 Nxh3 60. Ne3+ Kd4 0-1

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Giesen, Janneke"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "59"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. g3 Bf5 4. Bg2 e6 5. 0-0 Bd6 6. b3 Nf6 7. Bb2 0-0 8. Nbd2 Re8 9. c4 b6 10. Rc1 Qd7 11. Re1 Rad8 12. Nh4 Be7 13. Nxf5 exf5 14. Nf3 Nh5 15. cxd5 Nb4 16. Ne5 Qd6 17. Nc6 Ra8 18. Nxb4 Qxb4 19. d6 Qxd6 20. Bxa8 Rxa8 21. Qc2 f4 22. Qe4 Re8 23. Qc6 Qd8 24. Qxc7 Qa8 25. Qc6 Qb8 26. Qf3 g6 27. d5 Bf6 28. Bxf6 Nxf6 29. Red1 Nh5 30. d6 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Kuijvenhoven, Vincent"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "70"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nf6 7. Bd3 Bxd3 8. Qxd3 e6 9. 0-0 c5 10. Qb3 Qc7 11. dxc5 Bxc5 12. c3 Nc6 13. Bg5 Nd5 14. Rfe1 0-0 15. Rad1 Rab8 16. Nh5 b5 17. a3 a5 18. c4 bxc4 19. Qxc4 Qa7 20. Re2 Nce7 21. Qg4 Ng6 22. Nh4 Be7 23. Nxg6 hxg6 24. Nf4 Nxf4 25. Bxf4 Rbd8 26. Red2 Rxd2 27. Bxd2 Bf6 28. Be3 Qb7 29. Bd4 Bxd4 30. Qxd4 Rb8 31. Rd2 Qc7 32. h3 Qc1+ 33. Kh2 Qc7+ 34. g3 Qb7 35. Qc5 Qb6 1/2-1/2

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Dambrink, Wouter"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "25"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. 0-0 Bg7 6. Nc3 e6 7. d4 d5 8. dxc5 bxc5 9. cxd5 exd5 10. Qb3 Qd7 11. Bf4 f6 12. Nb5 Na6 13. Nd6+ 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Van Veen, Oscar"]
[Result "0-1"]
[ECO "E60"]
[PlyCount "58"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 0-0 5. Nc3 d6 6. g3 Bg4 7. Bg2 Qc8 8. 0-0 Bh3 9. d4 Nc6 10. Qc2 e5 11. d5 Ne7 12. Ng5 Bxg2 13. Kxg2 Qg4 14. Nge4 Nh5 15. Qd2 h6 16. f3 Qd7 17. Nf2 f5 18. e4 g5 19. Kh1 f4 20. g4 Nf6 21. Nd3 h5 22. h3 hxg4 23. hxg4 Kf7 24. Kg2 Rh8 25. c5 Nxg4 26. Rh1 Ne3+ 27. Kf2 Rh3 28. Rag1 Rah8 29. Ke1 Rxh1 0-1

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Rijnaarts, Sjef"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "85"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Be4 5. f3 Bg6 6. h4 h5 7. e6 Qd6 8. exf7+ Bxf7 9. f4 Nf6 10. g5 Ne4 11. Ne2 Bg6 12. Bh3 e6 13. Nbc3 Bf5 14. Nxe4 Bxe4 15. 0-0 Bf5 16. Kh2 g6 17. Re1 Nd7 18. Ng1 0-0-0 19. Re2 Qc7 20. Bxf5 exf5 21. Kg3 Bd6 22. Qe1 Nb6 23. Bd2 Qf7 24. Qf2 Rhe8 25. Rae1 Re4 26. Nf3 Nc4 27. Ne5 Bxe5 28. dxe5 Kb8 29. Bc3 b6 30. a4 d4 31. Rxe4 fxe4 32. Bxd4 c5 33. Bc3 Qf5 34. Qe2 Rf8 35. Rf1 e3 36. Kh2 Qg4 37. Qxg4 hxg4 38. Kg3 Nd2 39. Bxd2 exd2 40. Rd1 Rd8 41. Kxg4 Kc7 42. Kf3 Rd4 43. Ke3 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.11"]
[Round "9"]
[White "Wortel, Meike"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B70"]
[PlyCount "89"]
[EventDate "1999.05.03"]
[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. Nc3 Nc6 3. Nge2 d6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Nde2 Nf6 8. Bg2 0-0 9. 0-0 Rb8 10. a4 a6 11. Nd5 e6 12. Ndc3 Qc7 13. Bf4 Rd8 14. Qd2 b5 15. axb5 axb5 16. Rfd1 Ne8 17. Bh6 b4 18. Bxg7 Kxg7 19. Na4 Ba6 20. Nf4 Bb5 21. b3 Rdc8 22. Rdc1 Ra8 23. Nb2 Rxa1 24. Rxa1 Ne5 25. Qxb4 Qxc2 26. Qxb5 Qxb2 27. Rf1 Nf6 28. Qb7 Qc2 29. Nxe6+ Kg8 30. Nd4 Qc5 31. b4 Qc4 32. Nf3 Rc7 33. Qb8+ Rc8 34. Qxd6 Nxf3+ 35. Bxf3 Nxe4 36. Qd7 Nf6 37. Qd6 Kg7 38. Rb1 Qc2 39. Qd1 Qc4 40. b5 Rb8 41. b6 Qc5 42. b7 Ne8 43. Rc1 Qa7 44. Rc8 Nf6 45. Qd8 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.10"]
[Round "8"]
[White "Bakels, Rosanne"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "73"]
[EventDate "1999.05.03"]
[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. a4 a6 8. Na3 Be7 9. Be3 0-0 10. Nc4 a5 11. Nb6 Rb8 12. Nbd5 Be6 13. Bc4 Nb4 14. Bb6 Qe8 15. Nxf6+ Bxf6 16. Bxe6 Qxe6 17. Bxa5 Nc6 18. Bb6 Rbc8 19. Nd5 Ne7 20. Nxe7+ Bxe7 21. b3 Qg6 22. Qd3 Rc6 23. a5 Rfc8 24. c4 Qxg2 25. 0-0-0 Qg5+ 26. Kb2 Bd8 27. Rhg1 Qf6 28. Bxd8 Qxf2+ 29. Kb1 Rxd8 30. Rdf1 Qd4 31. Qf3 Rc7 32. Rd1 Qc5 33. Qf6 g6 34. Qxd8+ Kg7 35. Qxd6 Qxa5 36. Rd5 Qc3 37. Qxe5+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.08"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Trimp, Marga"]
[Result "0-1"]
[ECO "C36"]
[PlyCount "128"]
[EventDate "1999.05.03"]
[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. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. c4 Bd6 6. d4 b6 7. Bd3 Bg4 8. 0-0 0-0 9. Nc3 c5 10. dxc5 Bxc5+ 11. Kh1 Nh5 12. Qc2 f5 13. Qe2 Rf6 14. Qe1 Rh6 15. Ne2 Qd6 16. Bd2 Nd7 17. b4 Be3 18. Bxe3 fxe3 19. Kg1 Nhf6 20. Qg3 Qxg3 21. Nxg3 f4 22. Ne2 Bxf3 23. gxf3 g5 24. Kh1 Ne5 25. Bf5 Nxc4 26. Rg1 Rh5 27. Nxf4 Rh4 28. Rxg5+ Kf7 29. Ne2 Nd2 30. Be6+ Ke7 31. Kg2 Rxb4 32. Rc1 Nc4 33. Rg7+ Kd6 34. Rg5 b5 35. Rf5 Rf8 36. Nd4 a6 37. Rg5 Rb2+ 38. Rc2 Rxc2+ 39. Nxc2 a5 40. Rf5 a4 41. Kf1 Ke7 42. Ke2 Rb8 43. Nxe3 Nd6 44. Rg5 b4 45. Kd2 Nde4+ 46. fxe4 Nxe4+ 47. Kc2 Nxg5 48. Bf5 Nf3 49. Bxh7 Rh8 50. Be4 Rxh2+ 51. Kc1 Nd4 52. Kb1 Re2 53. Nf5+ Nxf5 54. Bxf5 Kd6 55. Bc2 a3 56. Bb3 Kc5 57. Kc1 Kd4 58. Kd1 Rb2 59. Kc1 Kc3 60. d6 Rd2 61. d7 Rxd7 62. Kb1 Re7 63. Kc1 Re1+ 64. Bd1 Rf1 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.07"]
[Round "5"]
[White "Versmissen, Jorie"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "42"]
[EventDate "1999.05.03"]
[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. Nf3 Bb4 7. Bd2 d5 8. exd5 Nxd5 9. Nxd5 Qxd5 10. Bxb4 Qe4+ 11. Qe2 Qxb4+ 12. c3 Qe7 13. Qd2 0-0 14. Bb5 Rd8 15. Qe2 Bd7 16. 0-0 f6 17. Rad1 Rac8 18. Rfe1 a6 19. Bc4+ Kh8 20. Bb3 Na5 21. Bc2 g6 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.06"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B58"]
[PlyCount "112"]
[EventDate "1999.05.03"]
[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 d6 6. Be2 e5 7. Nf3 h6 8. 0-0 Be6 9. Re1 Be7 10. Nd2 0-0 11. Nc4 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. Ne3 Be6 15. Bf3 Qxd1 16. Rxd1 Rfd8 17. Bxc6 Rxd1+ 18. Nxd1 bxc6 19. Be3 Bf5 20. c4 Bd3 21. b3 f5 22. Nb2 Be2 23. f3 f4 24. Kf2 Bxf3 25. Kxf3 fxe3 26. Kxe3 Bc5+ 27. Ke4 Bd4 28. Rb1 Kf7 29. Rf1+ Ke6 30. Nd3 g6 31. Nb4 Rc8 32. Rf3 c5 33. Nd5 Rg8 34. Rf6+ Kd7 35. Rf7+ Ke6 36. Rxa7 Rf8 37. Ra6+ Kd7 38. Nf6+ Ke7 39. Ng4 Rf4+ 40. Kd5 Rxg4 41. Ra7+ Kf8 42. a4 Rxg2 43. a5 Rxh2 44. a6 g5 45. Rb7 Ra2 46. a7 g4 47. Ke4 g3 48. Rb8+ Kg7 49. Kf3 g2 50. Rb7+ Kg6 51. a8Q Rxa8 52. Kxg2 Rf8 53. Kg3 e4 54. Re7 e3 55. Re4 Rb8 56. Kf3 Rxb3 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.05"]
[Round "3"]
[White "Giesen, Janneke"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "A03"]
[PlyCount "42"]
[EventDate "1999.05.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. e3 Nf6 4. f4 Nc6 5. Bb5 e6 6. Nf3 Bd6 7. Qe2 0-0 8. Bxc6 bxc6 9. g3 a5 10. d3 Re8 11. a4 Nd7 12. Nbd2 e5 13. 0-0-0 exf4 14. gxf4 Bxf4 15. Qg2 Bh6 16. Rde1 Nf6 17. Rhg1 Kh8 18. Ne5 Qc7 19. Qg3 Re7 20. Ref1 Nh5 21. Nxf7+ Rxf7 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.04"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "De Mie, Mariska"]
[Result "0-1"]
[ECO "B84"]
[BlackElo "2125"]
[PlyCount "78"]
[EventDate "1999.05.03"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Qc7 8. 0-0 b5 9. a3 Bb7 10. Bd3 Nbd7 11. f4 Nc5 12. Qf3 h5 13. Kh1 Be7 14. Rae1 Ng4 15. Bg1 Nf6 16. Qg3 h4 17. Qh3 0-0-0 18. b4 Nxd3 19. cxd3 Qd7 20. Rc1 Kb8 21. Nb3 Nh5 22. Ne2 d5 23. Qe3 Ba8 24. e5 h3 25. Qd4 hxg2+ 26. Kxg2 Rc8 27. Na5 Bd8 28. Nb3 Be7 29. Nc3 g6 30. a4 Ng7 31. axb5 axb5 32. Ra1 Nf5 33. Qb6+ Qb7 34. Qxb7+ Bxb7 35. Ba7+ Kc7 36. Nxb5+ Kd7 37. N5d4 Bxb4 38. Rfc1 Nxd4 39. Nxd4 Bc3 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.03"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Visschedijk, Marijn"]
[Result "0-1"]
[ECO "B85"]
[PlyCount "80"]
[EventDate "1999.05.03"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Be7 8. 0-0 0-0 9. f4 Qc7 10. g4 b5 11. g5 Nfd7 12. f5 Ne5 13. f6 Bd8 14. Qe1 b4 15. Nd1 Bb7 16. Qh4 Nbc6 17. Bd3 Nxd3 18. Rf3 Nxd4 19. Rh3 Nf3+ 20. Rxf3 Nc5 21. Nf2 Bxe4 22. Nxe4 Nxe4 23. Qxe4 Rc8 24. Rc1 Qc4 25. Qd4 Qxd4 26. Bxd4 Rc4 27. c3 e5 28. Bf2 Ba5 29. Be1 Rfc8 30. fxg7 bxc3 31. Bxc3 Bxc3 32. bxc3 Rg4+ 33. Kh1 Rxg5 34. Rf6 Rg6 35. Rcf1 Rxf6 36. Rxf6 Rc6 37. Kg2 Kxg7 38. Rf3 Kg6 39. Kg3 f5 40. Rd3 Kg5 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Bauerhuit, Monique"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "84"]
[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. Be2 g6 5. d3 e6 6. Bf4 Bg7 7. Nb5 Qa5+ 8. Nc3 Bxc3+ 9. bxc3 Qxc3+ 10. Bd2 Qg7 11. 0-0 Nge7 12. Rb1 0-0 13. Qc1 Ne5 14. Re1 Nxf3+ 15. Bxf3 Qd4 16. Rb3 f6 17. Qa3 c4 18. Be3 Qe5 19. d4 Qxd4 20. Bxd4 cxb3 21. axb3 Nc6 22. Qxd6 Rd8 23. Qf4 e5 24. Bxe5 fxe5 25. Qc1 Be6 26. Be2 Rac8 27. Bd3 Bxb3 28. cxb3 Nb4 29. Bc4+ Kg7 30. Rd1 Na2 31. Rxd8 Rxd8 32. Qe1 b5 33. Bd5 Rc8 34. g3 Rc1 35. Qxc1 Nxc1 36. b4 Nd3 37. Bc6 a6 38. Kf1 Nxb4 39. Bd7 Kf6 40. Ke2 Kf7 41. Bxb5 axb5 42. Kd2 g5 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "De Smet, Mariska"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "72"]
[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. Nc3 Nc6 3. Nf3 d6 4. Bc4 g6 5. d3 e6 6. Bf4 a6 7. 0-0 b5 8. Bb3 Bg7 9. Rb1 Nge7 10. Ne2 0-0 11. a4 Na5 12. c3 Nxb3 13. Qxb3 Qb6 14. Ra1 Bd7 15. axb5 axb5 16. e5 d5 17. d4 c4 18. Qb4 Nc6 19. Qd6 Rxa1 20. Rxa1 Rd8 21. Bg5 Bf8 22. Bxd8 Qxd8 23. Qxf8+ Qxf8 24. Rb1 Qa8 25. h3 Qa2 26. Nd2 Qa4 27. Kf1 b4 28. f3 Na7 29. Ke1 Nb5 30. b3 cxb3 31. Rxb3 Nxc3 32. Nxc3 bxc3 33. Rxc3 Qxd4 34. Ra3 Qg1+ 35. Nf1 Bb5 36. f4 Qxf1+ 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Andriessen, Marc"]
[Result "1/2-1/2"]
[ECO "C30"]
[PlyCount "44"]
[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. f4 f6 3. fxe5 Nc6 4. d4 d6 5. exf6 Nxf6 6. Nc3 Be7 7. Bc4 Bg4 8. Nge2 Qd7 9. 0-0 0-0-0 10. Be3 Rhe8 11. Bb5 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 14. c4 Qh5 15. c5 Bxc5 16. Qd3 Bxe2 17. Qxe2 Qxe2 18. Bxe2 Rxe3 19. Bg4+ Kb8 20. dxc5 Re5 21. Rac1 a5 22. Rf7 Rg5 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Bouwhuis, Michiel"]
[Result "0-1"]
[ECO "C35"]
[PlyCount "40"]
[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. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. 0-0 gxh2+ 7. Kh1 d5 8. Bxd5 Nf6 9. Bxf7+ Kxf7 10. Nxh4 Re8 11. Nc3 Kg8 12. d3 Nxe4 13. Nxe4 Qxh4 14. Qf3 Be6 15. Ng5 Qg4 16. Qxb7 Nd7 17. Nxe6 Qxe6 18. Qxc7 Qd5+ 19. Kxh2 Re2+ 20. Kg3 Qg2+ 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Cox, L."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "49"]
[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. f4 Nc6 3. Nf3 f6 4. Bc4 Bb4 5. c3 Ba5 6. 0-0 Nge7 7. fxe5 Rf8 8. d4 Bb6 9. exf6 gxf6 10. Bh6 Rh8 11. Bg7 Rg8 12. Bxg8 Nxg8 13. Nh4 Qe7 14. Qh5+ Qf7 15. Qxf7+ Kxf7 16. Nf5 d6 17. Nh6+ Kxg7 18. Nxg8 Kxg8 19. Kh1 Kg7 20. Nd2 a6 21. Rf4 Bd7 22. Raf1 Rf8 23. Nc4 Be6 24. Nxb6 cxb6 25. d5 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "98"]
[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 d6 5. Nc3 Nf6 6. Be2 g6 7. 0-0 Bg7 8. Be3 0-0 9. Qd2 Bd7 10. f4 Nxd4 11. Bxd4 Bc6 12. Bf3 Nd7 13. Bxg7 Kxg7 14. Kh1 Qb6 15. b3 Qb4 16. a3 Qc5 17. b4 Qc4 18. Be2 Qe6 19. Qd4+ Qf6 20. Qe3 Nb6 21. a4 a5 22. b5 Bd7 23. Ra3 Nc8 24. Nd5 Qh4 25. Qd4+ Kg8 26. Rg3 Qh6 27. f5 Qg7 28. f6 exf6 29. Nxf6+ Kh8 30. Qe3 Be6 31. Rf4 Ne7 32. Qf2 Ng8 33. Qd4 Nxf6 34. Qxf6 Qxf6 35. Rxf6 Rac8 36. Bd3 Bc4 37. Rxd6 Bxd3 38. Rgxd3 Rxc2 39. Kg1 Rc4 40. R3d4 Rfc8 41. Rxc4 Rxc4 42. Rd7 Kg8 43. e5 Rxa4 44. Rxb7 Rb4 45. b6 a4 46. Ra7 Rxb6 47. Rxa4 Re6 48. Ra5 Kg7 49. Kf2 Kg8 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Hania, Renske"]
[Result "0-1"]
[ECO "B74"]
[PlyCount "116"]
[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. Nc3 Bg7 6. Be3 d6 7. Be2 Nf6 8. 0-0 0-0 9. Nb3 a6 10. a4 Nb4 11. a5 Bd7 12. Bb6 Qe8 13. Nd4 Rc8 14. Qd2 Nc6 15. f3 Nxd4 16. Bxd4 Bc6 17. Rfb1 Qd7 18. b4 e5 19. Be3 d5 20. exd5 Nxd5 21. Nxd5 Qxd5 22. c4 Qxd2 23. Bxd2 e4 24. Ra3 exf3 25. Bxf3 Bxf3 26. Rxf3 Rxc4 27. b5 Rfc8 28. bxa6 bxa6 29. Rb6 Bd4+ 30. Kf1 Bxb6 31. axb6 Rb8 32. Rb3 Rb7 33. Be3 Rc6 34. Ke2 Kf8 35. Kd3 Ke7 36. Ke4 Ke6 37. Kf4 h6 38. Ke4 h5 39. Kf4 Rd6 40. Bc5 Rd5 41. Re3+ Kd7 42. Rc3 Rxc5 43. Rxc5 Rxb6 44. Ra5 Kc6 45. Ke4 Rb4+ 46. Kd3 Kb6 47. Ra1 Rb2 48. Rf1 f5 49. Re1 Rxg2 50. Re6+ Kb5 51. Kc3 f4 52. Re5+ Kc6 53. Re6+ Kd5 54. Rxa6 Ke4 55. Ra4+ Ke3 56. Ra8 Rxh2 57. Re8+ Kf2 58. Kd3 f3 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Paulis, Winifred"]
[Result "1-0"]
[ECO "B74"]
[PlyCount "90"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. 0-0 0-0 9. Nb3 Bd7 10. f4 Rc8 11. Qe1 a6 12. a4 e6 13. a5 Qe7 14. Bf3 Ne8 15. Na4 Nc7 16. Nb6 Rce8 17. c3 f5 18. e5 Rf7 19. exd6 Qxd6 20. Rd1 Qe7 21. Nxd7 Qxd7 22. Rxd7 Rxd7 23. Qe2 Nd5 24. Rd1 Red8 25. Bd2 Nxf4 26. Bxf4 Rxd1+ 27. Qxd1 Rxd1+ 28. Bxd1 Kf7 29. Bf3 e5 30. Bxc6 bxc6 31. Be3 f4 32. Bd2 Bf8 33. Nc1 g5 34. Nd3 Ke6 35. c4 e4 36. Nb4 Bxb4 37. Bxb4 e3 38. Kf1 Kf5 39. Ke2 Ke4 40. Bc5 g4 41. Bxe3 fxe3 42. b4 Kd4 43. b5 cxb5 44. cxb5 Kc5 45. b6 Kc6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Tates, Thomas"]
[Result "1-0"]
[ECO "B92"]
[PlyCount "75"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Bg5 Be7 9. 0-0 Nc6 10. Bxf6 Bxf6 11. Nd5 Bxd5 12. Qxd5 Qc7 13. c4 0-0 14. Rfd1 Rad8 15. Bf1 Kh8 16. Nc1 Nd4 17. Ne2 Ne6 18. b3 Kg8 19. Qd3 Qe7 20. Nc3 Nc7 21. Qe3 Rb8 22. Rd3 Rfd8 23. Rad1 Bg5 24. Qb6 d5 25. exd5 Rd6 26. Qb4 Qd8 27. Ne4 Rg6 28. Qc3 f6 29. Rg3 Bf4 30. Rxg6 hxg6 31. Qf3 f5 32. Nc5 Qd6 33. Nd3 b6 34. Nxf4 exf4 35. Re1 a5 36. Bd3 b5 37. cxb5 Nxd5 38. Bc4 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Van den Burg, J."]
[Result "1-0"]
[ECO "C34"]
[PlyCount "83"]
[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. f4 exf4 3. Nf3 Nc6 4. Bc4 d6 5. d4 Bg4 6. 0-0 Qd7 7. Bb5 a6 8. Ba4 b5 9. Bb3 Nge7 10. Bxf4 Ng6 11. Bg3 Be7 12. Qd2 0-0 13. Nc3 Rae8 14. a4 b4 15. Nd5 a5 16. Bc4 Na7 17. c3 bxc3 18. Qxc3 c6 19. Nxe7+ Rxe7 20. Bd3 Qd8 21. Be1 Rb7 22. Nd2 Qg5 23. Nf3 Bxf3 24. Rxf3 Rfb8 25. Bd2 Qd8 26. Raf1 d5 27. e5 Qb6 28. Bc1 Rc8 29. Bf5 Rcc7 30. e6 f6 31. Rg3 Re7 32. Qe3 Nf8 33. b3 Kh8 34. Ba3 Re8 35. Bc5 Qa6 36. e7 Nd7 37. Bd3 Nb5 38. axb5 cxb5 39. Rh3 h6 40. Rxh6+ gxh6 41. Qxh6+ Kg8 42. Qh7# 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Wortel, Meike"]
[Result "1/2-1/2"]
[ECO "B11"]
[PlyCount "73"]
[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 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Ng3 h5 6. Bc4 h4 7. Ne5 e6 8. Ne2 Bd6 9. f4 Nbd7 10. d4 c5 11. Be3 Qc7 12. Nxd7 Bxd7 13. dxc5 Bxc5 14. Bxc5 Qxc5 15. Qd4 Rc8 16. Qxc5 Rxc5 17. Bb3 Bc6 18. 0-0 Ng4 19. Nd4 Bd5 20. Bxd5 Rxd5 21. c3 Ne3 22. Rf3 Nc4 23. b3 Nd6 24. Rd3 Nf5 25. Rad1 Nxd4 26. Rxd4 Rxd4 27. Rxd4 Rh5 28. Ra4 a6 29. Rb4 b5 30. a4 Rc5 31. axb5 axb5 32. c4 bxc4 33. bxc4 Ra5 34. Rb2 Ra1+ 35. Kf2 Rc1 36. Rb4 Ke7 37. Ke3 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Lieven, Menno"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "35"]
[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 e5 6. Nb3 Bb4 7. Bd3 Bxc3+ 8. bxc3 d5 9. exd5 Qxd5 10. 0-0 0-0 11. c4 Qd6 12. Bxh7+ Nxh7 13. Qxd6 Rd8 14. Qc5 Be6 15. Bb2 f6 16. Rad1 Nf8 17. Rxd8 Rxd8 18. Qb5 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Muris, Saskia"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "66"]
[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 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Be2 Be6 13. 0-0 Bg5 14. Nc2 Ne7 15. Ncb4 a5 16. Nxe7+ Qxe7 17. Nc6 Qc7 18. Bxb5 Bd7 19. f4 Qb6+ 20. Kh1 Qxb5 21. Nxa5 Bxf4 22. Nb3 Qc6 23. Qd3 Be6 24. Rfd1 Rfd8 25. g3 Bg5 26. Qc2 f5 27. h4 Be7 28. Kh2 fxe4 29. Nd2 d5 30. b3 Rf8 31. Rf1 Qc5 32. b4 Qe3 33. Kh1 Qxg3 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Snuverink, Michiel"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B25"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 e6 6. Nf3 Nge7 7. 0-0 0-0 8. d3 d6 9. Qe1 Rb8 10. a4 a6 11. g4 f5 12. h3 b5 13. axb5 axb5 14. exf5 gxf5 15. Qg3 b4 16. Nd1 Qb6 17. Kh2 b3 18. c3 Bd7 19. Rg1 e5 20. Nh4 fxg4 21. f5 Nxf5 22. Bd5+ Kh8 23. Qxg4 Nce7 24. Nxf5 Nxf5 25. Ne3 Bh6 26. Nxf5 Bxf5 27. Qg3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Solleveld, Floris"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "43"]
[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. d3 g6 4. Nbd2 Bg7 5. g3 e6 6. Bg2 Nge7 7. 0-0 0-0 8. Re1 b5 9. Nf1 a5 10. h4 a4 11. a3 b4 12. axb4 cxb4 13. d4 Qb6 14. Be3 Qb5 15. N1h2 Na5 16. Nd2 Bb7 17. c3 Bc6 18. Bf1 Qb7 19. f3 f5 20. Bf4 bxc3 21. bxc3 Qa7 22. Bd6 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Trimp, Marga"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "49"]
[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 e6 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 Bb4 6. Qa4+ Bd7 7. Qxb4 Qc8 8. Ndb5 Bxb5 9. Nxb5 Nc6 10. Qa3 Qd7 11. Nd6+ Kd8 12. cxd5 exd5 13. Bf4 Nd4 14. Qc3 Ne6 15. Bg3 Nf6 16. Rd1 d4 17. Qb4 b6 18. e3 Ne8 19. Bb5 Qe7 20. Bh4 g5 21. Bg3 f5 22. Be5 Rf8 23. Bxd4 Nxd4 24. Rxd4 Nxd6 25. Rxd6+ 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Visschedijk, Marijn"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "117"]
[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. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nc6 6. Be2 Nf6 7. 0-0 Be7 8. c4 Qd8 9. dxc5 Qxd1 10. Rxd1 Bxc5 11. Nc3 0-0 12. a3 b6 13. b4 Be7 14. Be3 Ng4 15. Bd2 Bb7 16. h3 Nf6 17. Be3 Rfd8 18. c5 bxc5 19. bxc5 Rac8 20. Nb5 Nd5 21. Rac1 Nxe3 22. fxe3 Rxd1+ 23. Bxd1 Nd8 24. a4 Bxc5 25. Rc3 a6 26. Na3 Bb4 27. Rxc8 Bxc8 28. Nc4 a5 29. Nd4 Bb7 30. Kf2 Kf8 31. g3 Ke7 32. Ke2 Nc6 33. Nxc6+ Bxc6 34. Ne5 Bd5 35. Nf3 f6 36. Bc2 Bc4+ 37. Kf2 g6 38. h4 Kd6 39. g4 e5 40. h5 Bf7 41. hxg6 hxg6 42. Nh4 g5 43. Nf5+ Kc6 44. Ng3 Be7 45. Ne4 Ba2 46. Nc3 Bc4 47. Ne4 Kd5 48. Kf3 Ke6 49. Nd2 Ba6 50. Bb3+ Kd6 51. Nc4+ Kc5 52. Nd2 Kb4 53. Bd1 Bb7+ 54. Kf2 Bc6 55. Be2 Bxa4 56. Bc4 Bb5 57. Be6 a4 58. Ke1 a3 59. Kd1 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "5"]
[White "De Hoop, Thomas"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "110"]
[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 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 f4 12. Qh5 Bg7 13. g3 Be6 14. gxf4 exf4 15. c3 Bxd5 16. exd5 Qe7+ 17. Kd2 Ne5 18. Rae1 Qa7 19. Qg4 Qxf2+ 20. Re2 Qe3+ 21. Rxe3 fxe3+ 22. Ke2 Nxg4 23. Rg1 h5 24. h3 0-0-0 25. hxg4 h4 26. Kxe3 Rde8+ 27. Kf3 h3 28. Rh1 Be5 29. Nc2 Kb7 30. Nb4 Kb6 31. Nc6 Kc5 32. Be4 Rh4 33. Nxe5 Rxe5 34. Kg3 Rh6 35. Bf3 Re3 36. Kf4 Re8 37. g5 Rh7 38. Kg3 Re5 39. Kg4 h2 40. Kf4 Kc4 41. Rd1 Rg7 42. Rd4+ Kc5 43. b4+ Kb6 44. Rd2 Rh7 45. Rd1 Re2 46. Bxe2 h1Q 47. Rxh1 Rxh1 48. Kf5 Rh2 49. Kf6 Rxe2 50. Kxf7 Rxa2 51. g6 Rf2+ 52. Ke7 Rg2 53. Kf7 a5 54. bxa5+ Kxa5 55. g7 Kb6 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "7"]
[White "Groenewold, Jan Joris"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "67"]
[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 d5 2. g3 Nf6 3. c4 e6 4. Bg2 Be7 5. Nf3 0-0 6. Qc2 Nbd7 7. 0-0 b6 8. cxd5 exd5 9. Nc3 Bb7 10. Rd1 Rc8 11. Ng5 Re8 12. Nxd5 Bxd5 13. Bxd5 Rf8 14. Bc6 h6 15. Nf3 Bd6 16. e4 Nh7 17. e5 Be7 18. Qa4 b5 19. Qxb5 Nb6 20. Be3 Ng5 21. Nxg5 Bxg5 22. Qe2 Bxe3 23. Qxe3 Nd5 24. Qe4 Ne7 25. d5 Nxc6 26. dxc6 Qe8 27. Rd7 f5 28. Qd5+ Rf7 29. Rd1 Kf8 30. e6 Re7 31. Qxf5+ Kg8 32. Rxe7 Qxe7 33. Rd7 Qe8 34. e7 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Allamehzadeh, S."]
[Result "1-0"]
[ECO "C34"]
[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. f4 exf4 3. Nf3 Nc6 4. d4 Nf6 5. Bd3 d5 6. e5 Nh5 7. 0-0 Bg4 8. c3 Be7 9. Qc2 g6 10. Kh1 0-0 11. Ng1 Bg5 12. Ne2 Bxe2 13. Bxe2 f3 14. Bxf3 Bxc1 15. Qxc1 Ng7 16. Bg4 Re8 17. Qf4 Qe7 18. Rf3 f5 19. exf6 Qe1+ 20. Rf1 Ne6 21. f7+ Kg7 22. fxe8N+ Rxe8 23. Qf7+ Kh6 24. Rxe1 Rf8 25. Qxe6 Nb8 26. h4 Rf2 27. Qe3+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Bouwhuis, Michiel"]
[Result "0-1"]
[ECO "C35"]
[PlyCount "36"]
[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. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. 0-0 gxh2+ 7. Kh1 d5 8. Bxd5 Nf6 9. Bxf7+ Kxf7 10. Nxh4 Re8 11. d3 Kg8 12. Bg5 Nbd7 13. Qf3 h6 14. Bd2 Ne5 15. Qg2 Nfg4 16. Nc3 Qxh4 17. d4 Nc4 18. b3 Nce3 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B34"]
[PlyCount "51"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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 g6 5. Be2 Nf6 6. Nc3 Bg7 7. Be3 0-0 8. 0-0 b6 9. f4 Bb7 10. Bd3 Nb4 11. f5 Nxd3 12. cxd3 Qc7 13. Rc1 Rfe8 14. Ncb5 Qd8 15. Nc7 Rb8 16. Nxe8 Nxe8 17. fxg6 hxg6 18. Qf3 f6 19. Qg4 Kf7 20. Rf3 Rc8 21. Rcf1 Ba6 22. Bd2 Qc7 23. Kh1 Qd6 24. Bc3 b5 25. Rg3 g5 26. Qxg5 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Hamelink, Desiree"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "68"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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 Qa5+ 10. Qd2 Qxd2+ 11. Bxd2 Nxd5 12. exd5 Ne7 13. Ba5 Nxd5 14. Be2 Be6 15. Bf3 f5 16. Rd1 e4 17. Be2 Nf4 18. Bf1 Rc8 19. g3 Ng6 20. Bb4 d5 21. Bxf8 Rxf8 22. c3 Ne5 23. Be2 Kf7 24. Nc2 Nc6 25. f4 Rfd8 26. Kf2 d4 27. cxd4 Bxa2 28. Ra1 Bb3 29. Rhc1 Bxc2 30. Rxc2 Nxd4 31. Rxc8 Rxc8 32. Rxa6 Rc2 33. Ra7+ Ke6 34. Ra6+ Kd5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "9"]
[White "Huistra, Heikel"]
[Black "Perluka, Peter"]
[Result "0-1"]
[ECO "B00"]
[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 b6 2. d4 Bb7 3. Nc3 e6 4. Nf3 Nf6 5. Bg5 Be7 6. Bd3 d5 7. e5 Ne4 8. Bxe7 Qxe7 9. Bxe4 dxe4 10. Nd2 c5 11. Ndxe4 cxd4 12. Qxd4 0-0 13. 0-0 Rd8 14. Nd6 Nc6 15. Qf4 Ba6 16. Rfe1 Nxe5 17. Qxe5 Rxd6 18. Qe4 Bb7 19. Qa4 Bc6 20. Qa3 Rad8 21. Qb4 Qb7 22. g3 Bh1 23. f3 Qxf3 24. Qe4 Qxe4 25. Nxe4 Bxe4 26. Rxe4 Rd1+ 27. Rxd1 Rxd1+ 28. Kg2 Rd2+ 29. Kh3 Rxc2 30. Rd4 g6 31. Rb4 Kg7 32. g4 g5 33. Rb5 Rc5 34. Rb4 f5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Sewambar, Ashwin"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "48"]
[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 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 f6 8. f4 Nc6 9. Bh3 h5 10. f5 hxg4 11. Bxg4 cxd4 12. Nf4 Nxe5 13. Nxe6 Qa5 14. Qxd4 Bxf5 15. Qxd5 Qxd5 16. Nc7+ Kd8 17. N3xd5 Bxg4 18. Nxa8 Bf3 19. 0-0 Bxd5 20. Bf4 Bc5+ 21. Kh2 Rxh4+ 22. Kg3 Rg4+ 23. Kh2 Nf3+ 24. Kh3 Rxf4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "3"]
[White "Huistra, Heikel"]
[Black "Stiepel, Hannes"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "56"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 Qb6 7. 0-0 cxd4 8. cxd4 Nxd4 9. Nxd4 Qxd4 10. Nc3 Qxe5 11. Re1 Qd6 12. Qf3 Nf6 13. Nb5 Qb6 14. a4 Be7 15. Be3 Bc5 16. a5 Qc6 17. Bf4 0-0 18. Rac1 b6 19. b4 Rfd8 20. bxc5 bxc5 21. Nd4 Qc8 22. Bg5 e5 23. Bxf6 gxf6 24. Nf5 Bxf5 25. Bxf5 Qc6 26. Rc3 c4 27. Bxh7+ Kf8 28. Rec1 Ke7 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "5"]
[White "Huistra, Heikel"]
[Black "Tellekamp, G."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "55"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Nf6 5. d3 Be7 6. 0-0 a6 7. Kh1 b5 8. Bb3 Na5 9. fxe5 Nxb3 10. axb3 dxe5 11. Nxe5 Qd6 12. Nf3 Qc6 13. Bg5 0-0 14. Nc3 h6 15. Be3 Ng4 16. Bg1 f6 17. Nd4 Qd7 18. Nf5 Ne5 19. Qe1 Bd6 20. Qg3 Nc6 21. Nxd6 cxd6 22. Nxb5 Ne5 23. Nd4 Bb7 24. Nf5 Rad8 25. Nxh6+ Kh7 26. Nf5 Rf7 27. Rf4 g6 28. Rh4+ 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Versmissen, Jorie"]
[Result "0-1"]
[ECO "C36"]
[PlyCount "74"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 exf4 4. Nf3 Nf6 5. c4 Bg4 6. Be2 c6 7. 0-0 Bd6 8. d4 cxd5 9. Nc3 0-0 10. Ne5 Bxe2 11. Qxe2 g5 12. h4 h6 13. g3 dxc4 14. hxg5 hxg5 15. gxf4 Bxe5 16. dxe5 Nh7 17. Qxc4 Qb6+ 18. Rf2 Nd7 19. Qd3 Nc5 20. Qh3 Qg6 21. f5 Qg7 22. f6 Qg6 23. Qg4 Nd3 24. Nd5 Rae8 25. Ne7+ Rxe7 26. fxe7 Re8 27. Rg2 Nxe5 28. Qg3 Rxe7 29. Bxg5 Nxg5 30. Rf1 f6 31. Qb3+ Kg7 32. Qb4 Rd7 33. Qb5 Qd3 34. Rxg5+ fxg5 35. Qxe5+ Kh7 36. Qxg5 Rg7 37. Rf7 Qe3+ 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "2"]
[White "Kommer, Bas"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B33"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 Bb4 7. Nd2 d5 8. Bd3 Bg4 9. f3 Be6 10. 0-0 Bc5+ 11. Kh1 a6 12. Nb3 Ba7 13. Bg5 h6 14. Bh4 g5 15. Bf2 Nd4 16. Nxd4 exd4 17. Ne2 dxe4 18. Bxe4 Nxe4 19. fxe4 Bg4 20. Qd3 Bxe2 21. Qxe2 h5 22. Rad1 g4 23. c3 Qc7 24. Bxd4 Bb8 25. e5 Qe7 26. e6 Bxh2 27. exf7+ 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "4"]
[White "Smid, O."]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "120"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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. Nc3 g6 4. Bc4 Bg7 5. Ng5 e6 6. Nf3 Nge7 7. 0-0 0-0 8. b3 a6 9. Bb2 b5 10. Bd3 Rb8 11. Rb1 Bb7 12. Ne2 Nb4 13. Bxg7 Kxg7 14. Ra1 Nxd3 15. cxd3 d5 16. Ng3 Qd6 17. Rc1 Rbc8 18. e5 Qb8 19. Rc2 d4 20. Qe2 Bxf3 21. Qxf3 Qxe5 22. Qb7 Qc7 23. Qxa6 Qc6 24. Qxc6 Rxc6 25. Ne4 f5 26. Nxc5 b4 27. Rfc1 Rfc8 28. f3 Kf7 29. Rc4 Ng8 30. Nd7 Rxc4 31. dxc4 Rc7 32. Nb6 Nf6 33. c5 e5 34. c6 Ke6 35. Rc4 Kd6 36. Rxb4 Kc5 37. a3 Rxc6 38. Nc4 Re6 39. Nb2 Nd5 40. Rc4+ Kb5 41. a4+ Ka6 42. Nd3 Re7 43. Nb4+ Nxb4 44. Rxb4 Ka7 45. a5 Ka6 46. Ra4 Rb7 47. b4 Kb5 48. a6 Ra7 49. Ra1 Rxa6 50. Rxa6 Kxa6 51. Kf2 Kb5 52. Kg3 Kxb4 53. Kf2 Kc4 54. Ke2 f4 55. g3 g5 56. g4 d3+ 57. Kf2 Kb3 58. Ke1 Kc2 59. h3 h6 60. Kf2 Kxd2 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "3"]
[White "Trimp, Marga"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "79"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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 c5 4. Nf3 Nc6 5. Bf4 Nf6 6. e3 Be7 7. Bd3 0-0 8. 0-0 a6 9. a4 b6 10. Re1 Bb7 11. Rc1 cxd4 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Bc4 Qd7 15. exd4 Bb4 16. Re3 Ne7 17. Bb3 Bd6 18. Ne5 Bxe5 19. dxe5 Qxd1+ 20. Rxd1 Bd5 21. Bc2 Rfc8 22. Bb1 h6 23. Rg3 Kf8 24. h3 Rc4 25. Be3 Rc6 26. Rg4 Bb3 27. Rd7 Nd5 28. Bd2 b5 29. a5 Rac8 30. Be4 Bc4 31. f4 Rb8 32. Rg3 b4 33. f5 Ke8 34. Ra7 exf5 35. Bxf5 Rc5 36. Rxg7 Nc7 37. Bxh6 Ke7 38. Bg5+ Kf8 39. Rh7 Kg8 40. Bf6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "8"]
[White "Van Aken, Michael"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "55"]
[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. Bc4 Nc6 3. Nf3 e6 4. Nc3 g6 5. d3 Bg7 6. Bg5 Nge7 7. 0-0 0-0 8. Re1 a6 9. a3 b5 10. Ba2 b4 11. axb4 cxb4 12. Na4 d6 13. c3 a5 14. Rb1 d5 15. exd5 Nxd5 16. Bxd8 Rxd8 17. Bxd5 Rxd5 18. Nb6 Rd8 19. Nxa8 bxc3 20. bxc3 Bxc3 21. Re2 Nb4 22. d4 Ba6 23. Re3 Nd5 24. Nc7 Nxe3 25. fxe3 Bc8 26. Nb5 Bb4 27. Ne5 Rd5 28. Qc2 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "7"]
[White "Wezenaar, Femke"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "80"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. f4 g6 3. Nc3 Nc6 4. Nf3 Bg7 5. Bc4 e6 6. 0-0 Nge7 7. b3 0-0 8. Bb2 d5 9. Bd3 f5 10. e5 a6 11. a4 c4 12. bxc4 Qb6+ 13. Kh1 Qxb2 14. cxd5 exd5 15. Qe2 Qb6 16. Ra3 Be6 17. Ng5 Nd8 18. Qf3 h6 19. Nxe6 Qxe6 20. Qe2 Qc6 21. Re1 Ne6 22. Qf3 d4 23. Qxc6 bxc6 24. Ne2 Nd5 25. Rf1 Nb6 26. h3 c5 27. c3 c4 28. Bb1 d3 29. Nc1 Nc5 30. a5 Nbd7 31. Re1 Ne4 32. e6 Ndf6 33. Ra2 Rfe8 34. Rb2 Rab8 35. Rxb8 Rxb8 36. Ba2 Rc8 37. h4 Kf8 38. Kg1 Ke7 39. Rd1 Kxe6 40. Kf1 Ke7 0-1

[Event "The Hague op"]
[Site "The Hague"]
[Date "1996.??.??"]
[Round "2"]
[White "Bensdorp, Marlies"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "51"]
[EventDate "1996.??.??"]
[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 Nf6 4. Ng5 Qe7 5. Nc3 h6 6. Nf3 Qc5 7. d3 d6 8. Be3 Qb4 9. Rb1 Bg4 10. a3 Qa5 11. b4 Qxa3 12. Bd2 Bxf3 13. Qxf3 Qxb4 14. Rxb4 Nxb4 15. 0-0 Nxc2 16. Nb5 Nd4 17. Qh3 Nxb5 18. Bxb5+ c6 19. Bc4 a5 20. Ra1 b6 21. Qe3 b5 22. Bxb5 cxb5 23. Qb6 Be7 24. Qc6+ Kd8 25. Rxa5 Rxa5 26. Bxa5# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "Gorter, Janko"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "31"]
[EventDate "1996.??.??"]
[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. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. Bf4 Nc6 9. Qd3 Rd8 10. Rd1 b6 11. Ne5 Nxe5 12. Bxe5 Bb7 13. Qg3 Rac8 14. Na3 cxd4 15. Bf3 Qd7 16. Rxd4 1-0

[Event "The Hague op"]
[Site "The Hague"]
[Date "1996.??.??"]
[Round "9"]
[White "Hijweegen, Claudia"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "C53"]
[PlyCount "81"]
[EventDate "1996.??.??"]
[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 h6 4. c3 Bc5 5. d4 Bd6 6. dxe5 Nxe5 7. Bb3 Nf6 8. Bc2 Bc5 9. Be3 Bxe3 10. fxe3 Nxf3+ 11. Qxf3 d6 12. Nd2 Bg4 13. Qf4 Qe7 14. Nc4 0-0 15. e5 dxe5 16. Nxe5 g5 17. Qg3 h5 18. Nxg4 hxg4 19. 0-0 Rfe8 20. Rf5 Qxe3+ 21. Qxe3 Rxe3 22. Rxf6 Kg7 23. Rff1 Re2 24. Bd1 Rxb2 25. Bxg4 a5 26. Bf3 c5 27. Rab1 Rb8 28. Rxb2 a4 29. Rxb7 Rxb7 30. Bxb7 g4 31. Rf4 a3 32. Rxg4+ Kh6 33. Ra4 f5 34. Rxa3 Kg5 35. Ra5 Kg4 36. Rxc5 f4 37. a4 f3 38. Bxf3+ Kf4 39. Rc4+ Kg5 40. a5 Kf5 41. a6 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Amesz, Jaap"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "97"]
[EventDate "1996.??.??"]
[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 b6 3. Nf3 Bb7 4. Bd3 d5 5. e5 c5 6. c3 Nc6 7. 0-0 Rc8 8. Be3 g6 9. Qe2 cxd4 10. cxd4 Nge7 11. Nc3 Nf5 12. Bxf5 gxf5 13. Bg5 Qd7 14. Bf6 Rg8 15. Rfd1 a6 16. Ng5 h6 17. Nh7 Rg6 18. Qf3 Be7 19. Bxe7 Qxe7 20. Ne2 Kd7 21. Nf4 Kc7 22. Nxg6 fxg6 23. Nf6 Qb4 24. Qc3 Qxc3 25. bxc3 Ne7 26. Rab1 Ng8 27. Nxg8 Rxg8 28. Rb2 Bc6 29. Rd3 h5 30. Rd1 Rb8 31. g3 g5 32. Kg2 Be8 33. Kh3 Bf7 34. Rg1 Rh8 35. Rgb1 Rb8 36. f4 g4+ 37. Kh4 Kc6 38. Kg5 Rb7 39. Kf6 Bg8 40. a4 Kc7 41. Kg7 Rb8 42. Rxb6 Rxb6 43. Rxb6 Kxb6 44. Kxg8 Ka5 45. Kf7 Kxa4 46. Kxe6 Kb3 47. Kxd5 a5 48. e6 h4 49. e7 1-0

[Event "The Hague op"]
[Site "The Hague"]
[Date "1996.??.??"]
[Round "3"]
[White "Huistra, Heikel"]
[Black "Dos Santos Campos, Ines"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "112"]
[EventDate "1996.??.??"]
[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 Nf6 4. Bc4 h6 5. d3 Bc5 6. 0-0 Ng4 7. h3 Nxf2 8. Rxf2 Bxf2+ 9. Kxf2 0-0 10. a3 Na5 11. b4 Nxc4 12. dxc4 Re8 13. a4 Re6 14. b5 Rd6 15. Bd2 c6 16. c5 Re6 17. b6 axb6 18. cxb6 Qxb6+ 19. Kf1 Rg6 20. Rb1 Qc7 21. h4 d6 22. h5 Rg4 23. Be3 Rh4 24. Nxh4 Qe7 25. Bf2 b6 26. Rxb6 Ba6+ 27. Ne2 Bxe2+ 28. Qxe2 Rxa4 29. Rb8+ Kh7 30. Nf5 Qg5 31. Rb1 d5 32. Bh4 Qf4+ 33. Qf2 Rxe4 34. Qxf4 Rxf4+ 35. Bf2 Rxf5 36. g4 Rg5 37. Rb6 Rxg4 38. Rxc6 Rf4 39. Rd6 e4 40. Kg2 Rg4+ 41. Kf1 Rf4 42. Ke2 Rf3 43. Rxd5 Rc3 44. Rd2 g5 45. hxg6+ fxg6 46. Bd4 Rc6 47. Ke3 Re6 48. c4 h5 49. Rc2 g5 50. c5 g4 51. c6 g3 52. c7 Re8 53. c8Q Rxc8 54. Rxc8 h4 55. Rc1 h3 56. Rh1 h2 1/2-1/2

[Event "The Hague op"]
[Site "The Hague"]
[Date "1996.??.??"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Eimers, Nathalie"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "22"]
[EventDate "1996.??.??"]
[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. Bc4 Qf6 5. d3 d6 6. Bg5 Qg6 7. 0-0 Bg4 8. Be3 Nd4 9. h3 Nxf3+ 10. gxf3 Bxf3+ 11. Kh2 Qg2# 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Kommer, Bas"]
[Result "0-1"]
[ECO "B74"]
[PlyCount "54"]
[EventDate "1996.??.??"]
[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 g6 6. Be2 Bg7 7. 0-0 Nc6 8. Be3 0-0 9. Nb3 Be6 10. f4 Qc8 11. Bd3 Ng4 12. Qf3 Nxe3 13. Qxe3 Bxb3 14. Qg3 Be6 15. f5 Be5 16. Qg5 Bxc3 17. bxc3 Bd7 18. Bc4 Ne5 19. Bb3 Qc5+ 20. Kh1 Rae8 21. Rad1 Bc6 22. fxg6 hxg6 23. Rd3 Kg7 24. Rh3 Rh8 25. Qxe5+ Qxe5 26. Rxf7+ Kg8 27. Rxe7+ d5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Rijnaarts, Sjef"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "83"]
[EventDate "1996.??.??"]
[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. Be2 Bc5 7. Nb3 Bb6 8. 0-0 0-0 9. Kh1 a6 10. Qd6 Bc7 11. Qd3 b6 12. f4 d5 13. e5 Nd7 14. Qh3 f5 15. Bf3 Ne7 16. Nd4 Nxe5 17. fxe5 Bxe5 18. Nde2 Ra7 19. Bf4 Bf6 20. Qg3 Rd7 21. Nc1 Ng6 22. Bd2 d4 23. N3e2 e5 24. Bc6 Rd6 25. Ba4 a5 26. Bb3+ Kh8 27. Nd3 Bh4 28. Qh3 Qe7 29. Nf2 Bb7 30. c3 Bg5 31. Bxg5 Qxg5 32. cxd4 Nh4 33. d5 a4 34. Ne4 Qd8 35. Nxd6 Qxd6 36. Qxh4 axb3 37. axb3 Qxd5 38. Qh3 f4 39. Qf3 Qd7 40. Qc3 Qg4 41. Rf2 f3 42. Kg1 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Voortman, R."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "107"]
[EventDate "1996.??.??"]
[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. f4 d6 3. Nf3 Bg4 4. Bc4 Qf6 5. d3 Nc6 6. c3 exf4 7. d4 Nh6 8. 0-0 Be7 9. Qd2 0-0 10. Qxf4 Qg6 11. Na3 Bh3 12. Ng5 Be6 13. Nxe6 fxe6 14. Qe3 Rxf1+ 15. Bxf1 Rf8 16. Bc4 Ng4 17. Qh3 Nf2 18. Qxe6+ Qxe6 19. Bxe6+ Kh8 20. Bd5 Nd8 21. Bd2 c6 22. Rf1 Bh4 23. Bb3 h6 24. Be3 Re8 25. Bxf2 Bxf2+ 26. Rxf2 g6 27. Bc2 d5 28. e5 Kg7 29. Rf6 g5 30. Rg6+ Kf8 31. Rxh6 Ne6 32. Rg6 Kf7 33. Rf6+ Kg7 34. Bf5 Nf4 35. g3 Ne2+ 36. Kf2 Nc1 37. Rg6+ Kf7 38. Rxg5 Kf8 39. Bb1 Ke7 40. Rf5 Rh8 41. h4 Rg8 42. h5 Ke6 43. h6 Rh8 44. Rh5 b5 45. g4 Nxa2 46. Bxa2 Kf7 47. Bb1 a6 48. g5 a5 49. g6+ Kg8 50. e6 b4 51. e7 Rxh6 52. e8Q+ Kg7 53. Qf7+ Kh8 54. g7# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Ngo, An"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "54"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d3 d5 2. e3 e5 3. c3 Nf6 4. Nd2 Bf5 5. f3 Bc5 6. Qe2 0-0 7. b4 Bb6 8. Bb2 Nbd7 9. g4 Bg6 10. Bg2 c5 11. Ba3 Rc8 12. Nh3 cxb4 13. Bxb4 Re8 14. 0-0 a5 15. Ba3 Rxc3 16. Bb2 Rxd3 17. f4 Rxe3 18. Qxe3 Bxe3+ 19. Nf2 Bxd2 20. Rad1 Bxf4 21. Bxd5 Qb6 22. Bc1 Bxc1 23. Rxc1 Nxd5 24. Rcd1 Ne3 25. Rxd7 Nxf1 26. Kxf1 Qb5+ 27. Kg1 Qxd7 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Tiele, Edwin"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "60"]
[EventDate "1996.??.??"]
[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. Nc3 Nc6 3. Nf3 d6 4. Bc4 Nf6 5. Ng5 e6 6. d3 Be7 7. 0-0 0-0 8. f4 d5 9. exd5 exd5 10. Bb3 b6 11. Qf3 Nd4 12. Qg3 Nf5 13. Qf3 Bb7 14. Re1 Qd7 15. Qh3 d4 16. Ne2 Qc6 17. Ng3 Nxg3 18. Rxe7 Nf5 19. Bxf7+ Kh8 20. Re6 Qxg2+ 21. Qxg2 Bxg2 22. Kxg2 h6 23. Bg6 Nh4+ 24. Kg3 Nxg6 25. Nf3 Nh5+ 26. Kg4 Ngxf4 27. Bxf4 Nxf4 28. Rd6 Ng2 29. Ne5 Ne3+ 30. Kh5 Rf5+ 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "Van der Aalst, Paul"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "D32"]
[PlyCount "70"]
[EventDate "1996.??.??"]
[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. cxd5 exd5 4. Nc3 c5 5. dxc5 d4 6. Ne4 Bf5 7. Ng3 Bg6 8. Nf3 Bxc5 9. Bf4 Nc6 10. a3 Nf6 11. e3 Qe7 12. b4 Bb6 13. Qb3 0-0 14. Bb5 Rfe8 15. Bxc6 bxc6 16. Ne5 Nd5 17. 0-0 dxe3 18. Nxg6 hxg6 19. fxe3 Nxf4 20. Rxf4 Qxe3+ 21. Qxe3 Bxe3+ 22. Rf2 Rad8 23. Kf1 Bxf2 24. Kxf2 Rd2+ 25. Kf1 Red8 26. Ne2 Rd1+ 27. Rxd1 Rxd1+ 28. Kf2 Rd3 29. a4 Rb3 30. Nd4 Rxb4 31. Nxc6 Rxa4 32. Ke3 a6 33. Nd4 Ra2 34. Kf3 a5 35. Ne2 a4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Willemze, Thomas"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "65"]
[EventDate "1996.??.??"]
[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. Nd5 Nxd5 8. exd5 Nb8 9. a4 a6 10. Na3 Be7 11. Nc4 0-0 12. a5 Nd7 13. Be2 b6 14. Bd2 b5 15. Na3 Nf6 16. c4 bxc4 17. Nxc4 Bb7 18. Nb6 Rb8 19. Be3 Nd7 20. 0-0 f5 21. f3 f4 22. Bf2 Qe8 23. Qa4 Nxb6 24. Qxe8 Rbxe8 25. axb6 Bxd5 26. Rxa6 Bb7 27. Ra7 Rb8 28. Rc1 Bd8 29. Rc7 Bxc7 30. bxc7 Rbc8 31. Rxb7 Kf7 32. Ba6 Ke6 33. Ra7 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "7"]
[White "Goossen, Gerard"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B25"]
[PlyCount "91"]
[EventDate "1995.??.??"]
[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 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nf3 d6 8. 0-0 Rb8 9. Rb1 b5 10. a3 a5 11. Be3 b4 12. axb4 axb4 13. Ne2 Qb6 14. d4 cxd4 15. Nexd4 0-0 16. Nf5 Qc7 17. Qxd6 Qxd6 18. Nxd6 Ba6 19. Rfd1 Nc8 20. e5 Rd8 21. Nxc8 Rdxc8 22. Bc5 Nxe5 23. Nxe5 Rxc5 24. Nd7 Rbc8 25. Nxc5 Rxc5 26. Rd2 Kf8 27. Ra1 Bc4 28. Ra8+ Ke7 29. Ra7+ Ke8 30. Rd6 Bxb2 31. Bc6+ Rxc6 32. Ra8+ Ke7 33. Rxc6 Bd4+ 34. Kg2 Bd5+ 35. Kh3 Bxc6 36. Rc8 Be4 37. Rc4 h5 38. Rxd4 Bf5+ 39. Kg2 Bxc2 40. Rxb4 Kd6 41. Kf3 Kd5 42. Rb7 f6 43. Rf7 e5 44. Rxf6 exf4 45. Kxf4 Bf5 46. Rxf5+ 1-0

[Event "EU-ch U14 Girls"]
[Site "Verdun"]
[Date "1995.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Bayramova, Zuleykha"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 dxe4 5. dxe4 Bc5 6. Bg2 e5 7. Ngf3 Nc6 8. 0-0 0-0 9. c3 a5 10. Qe2 b6 11. Rd1 Ba6 12. Qe1 Ng4 13. Nb3 Bxf2+ 14. Kh1 Bxe1 15. Rxd8 Raxd8 16. Nxe1 Rd1 17. Bg5 Rxa1 18. Nxa1 f6 19. Bd2 Rd8 20. Nf3 Be2 21. Be1 Ne3 22. Nb3 Rd1 23. Kg1 Nxg2 24. Kxg2 Bxf3+ 25. Kxf3 Rxe1 0-1

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Gootjes, Joost"]
[Result "1-0"]
[ECO "D55"]
[PlyCount "42"]
[EventDate "1995.??.??"]
[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 Be7 4. cxd5 exd5 5. Nf3 Nf6 6. Bg5 0-0 7. Qc2 h6 8. Bh4 b6 9. e3 Bb7 10. Bd3 Nbd7 11. 0-0 c5 12. b3 Rc8 13. Qb2 Ne4 14. Bxe7 Qxe7 15. dxc5 Ndxc5 16. Bxe4 dxe4 17. Ne1 Ba6 18. Ne2 Qf6 19. Rb1 Rfd8 20. b4 Qxb2 21. Rxb2 Na4 1-0

[Event "EU-ch U14 Girls"]
[Site "Verdun"]
[Date "1995.??.??"]
[Round "9"]
[White "Huistra, Heikel"]
[Black "Kurumoglu, Deniz"]
[Result "1-0"]
[ECO "B90"]
[PlyCount "99"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 b5 7. Be2 e6 8. 0-0 Be7 9. Kh1 0-0 10. f4 Qc7 11. Be3 Bb7 12. Bd3 Nbd7 13. Qf3 Nc5 14. Bd2 Nxd3 15. cxd3 Rac8 16. Rac1 Qb6 17. Nce2 Rxc1 18. Rxc1 Re8 19. Qg3 Bf8 20. Rf1 g6 21. f5 Bg7 22. fxg6 fxg6 23. Bg5 Rf8 24. Nxe6 Nh5 25. Rxf8+ Bxf8 26. Qf3 Bg7 27. g4 Bc8 28. Nxg7 Nxg7 29. Bh6 Qd8 30. h3 Qf8 31. Qg3 Bb7 32. Nf4 Qf6 33. Qf2 g5 34. Bxg7 Qxg7 35. Nh5 Qf7 36. Qxf7+ Kxf7 37. Ng3 d5 38. Kg2 dxe4 39. Nxe4 Bxe4+ 40. dxe4 Ke6 41. Kf3 Ke5 42. Ke3 h6 43. b4 Ke6 44. Kd4 Kd6 45. e5+ Ke6 46. Ke4 Kd7 47. Kd5 Ke7 48. e6 Kd8 49. Kd6 Ke8 50. e7 1-0

[Event "EU-ch U14 Girls"]
[Site "Verdun"]
[Date "1995.??.??"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Rocheta, Susana"]
[Result "1/2-1/2"]
[ECO "C30"]
[PlyCount "44"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nf6 4. Nc3 Bg4 5. Bc4 Be7 6. 0-0 0-0 7. Qe1 Nc6 8. d3 Bxf3 9. Rxf3 Nd4 10. Rf2 Ng4 11. Rd2 exf4 12. Bb3 Bg5 13. Rd1 f3 14. Qg3 Bxc1 15. Raxc1 Ne5 16. Rf1 b5 17. Qe1 Qf6 18. Nd5 Qd8 19. Qe3 fxg2 20. Kxg2 Ne6 21. Nf4 Nxf4+ 22. Qxf4 Qe7 1/2-1/2

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Van Steenwinckel, Iris"]
[Result "1-0"]
[ECO "C32"]
[PlyCount "61"]
[EventDate "1995.??.??"]
[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 Nf6 8. Qe2 0-0 9. Bxf6 exd3 10. Qxd3 Qxd3 11. Bxd3 Re8+ 12. Ne2 gxf6 13. 0-0-0 Bg4 14. Rde1 Nc6 15. h3 Bxe2 16. Bxe2 Nb4 17. a3 Nd5 18. Bf3 c6 19. Bxd5 cxd5 20. Rd1 Rad8 21. Rhe1 Re6 22. Rf1 h5 23. Rf2 f5 24. Rd3 Re4 25. Rg3+ Kh7 26. Rg5 Kh6 27. Rxf5 Rd7 28. Kd2 d4 29. Re2 Rxe2+ 30. Kxe2 Rc7 31. Kd3 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Verwer, Sicco"]
[Result "0-1"]
[ECO "C36"]
[PlyCount "34"]
[EventDate "1995.??.??"]
[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 exf4 3. Nf3 d5 4. exd5 Nf6 5. c4 Bd6 6. Nc3 0-0 7. d4 c5 8. dxc5 Bxc5 9. Bxf4 Ng4 10. Bg3 Qb6 11. Qe2 Bd7 12. 0-0-0 Re8 13. Qd3 Re3 14. Qb1 Rxc3+ 15. bxc3 Ba3+ 16. Kd2 Qe3+ 17. Kc2 Ba4+ 0-1

[Event "EU-ch U14 Girls"]
[Site "Verdun"]
[Date "1995.??.??"]
[Round "3"]
[White "Jackova, Jana"]
[Black "Huistra, Heikel"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "37"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[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 0-0 12. Nc2 Be6 13. Nce3 Bg5 14. a4 Rb8 15. axb5 axb5 16. Ra6 Ne7 17. Rxd6 Qc8 18. h4 Bxe3 19. Nxe7+ 1-0

[Event "NED-ch U18"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "9"]
[White "Kalb, Jos"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "D35"]
[PlyCount "105"]
[EventDate "1995.??.??"]
[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. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Bd3 Bg4 8. Nf3 Nbd7 9. h3 Be6 10. Qc2 Rc8 11. 0-0 h6 12. Bh4 c5 13. dxc5 Nxc5 14. Nd4 Nxd3 15. Qxd3 Qb6 16. Qb5 Qxb5 17. Ncxb5 a6 18. Nc3 Rfd8 19. Rfc1 Rd6 20. Rc2 Bd8 21. Rac1 Ne4 22. Nxe4 Rxc2 23. Rxc2 dxe4 24. Nxe6 Bxh4 25. Rc8+ Kh7 26. Nf8+ Kg8 27. Ng6+ Bd8 28. Ne7+ Kh7 29. Nf5 Rd1+ 30. Kh2 Bf6 31. Rc2 g6 32. Ng3 Be5 33. b3 g5 34. f4 gxf4 35. exf4 Bxf4 36. Rf2 Bxg3+ 37. Kxg3 Kg6 38. Kf4 Re1 39. Rc2 e3 40. Ke4 f5+ 41. Kf3 Kg5 42. Rc7 Ra1 43. Kxe3 Rxa2 44. Rxb7 Ra3 45. Kf3 a5 46. h4+ Kxh4 47. Kf4 a4 48. Rb6 h5 49. bxa4 Rxa4+ 50. Kxf5 Rg4 51. Rb2 Kg3 52. Ra2 Kh2 53. Rb2 1/2-1/2

[Event "EU-ch U14 Girls"]
[Site "Verdun"]
[Date "1995.??.??"]
[Round "1"]
[White "Vitartaite, Ausra"]
[Black "Huistra, Heikel"]
[Result "1/2-1/2"]
[ECO "D35"]
[PlyCount "86"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Nbd7 6. e3 Be7 7. Bd3 0-0 8. Qc2 b6 9. Nge2 Bb7 10. 0-0 c5 11. dxc5 bxc5 12. Rac1 h6 13. Bh4 Qc7 14. Bg3 Qc6 15. Bb5 Qc8 16. Rfd1 Nb6 17. Na4 c4 18. Nd4 Ne4 19. Bf4 Nd7 20. Bxd7 Qxd7 21. Nc3 Nc5 22. Qf5 Rfd8 23. Qxd7 Rxd7 24. Rc2 Bf6 25. Bg3 Nd3 26. Nde2 Rad8 27. Rcd2 Bc6 28. Kf1 Kf8 29. Nd4 Bb7 30. Nce2 Rc8 31. Nc1 Nc5 32. Ke1 Na4 33. Nce2 Ba6 34. Rc2 Be7 35. a3 Rb7 36. Rdd2 Rd8 37. Nc6 Rdd7 38. Nxe7 Kxe7 39. Nc3 Nxc3 40. Rxc3 Rb5 41. Rcc2 Bc8 42. Be5 Kf8 43. Bc3 Rd8 1/2-1/2

[Event "EU-ch U16 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "2"]
[White "Huistra, Heikel"]
[Black "Alexandrova, Alexandra"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "42"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bd6 9. Be3 0-0 10. 0-0 b6 11. Bg5 Bb7 12. Ne5 c5 13. c3 cxd4 14. cxd4 Be7 15. Bxf6 Bxf6 16. Bc2 Bxe5 17. dxe5 Qxd1 18. Rfxd1 Rfd8 19. Rd6 Bd5 20. Rxd8+ Rxd8 21. Rd1 Re8 1/2-1/2

[Event "EU-ch U12 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "6"]
[White "Huistra, Heikel"]
[Black "Brazauskite, L."]
[Result "1-0"]
[ECO "C54"]
[PlyCount "75"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. Qb3 Nce7 11. 0-0 0-0 12. Rfe1 c6 13. a4 Re8 14. Ne4 Qc7 15. Rac1 a6 16. Nc3 Be6 17. Nxd5 Nxd5 18. Bxd5 Bxd5 19. Rxe8+ Rxe8 20. Qxd5 Qxh2+ 21. Nxh2 cxd5 22. Rc7 Re1+ 23. Nf1 g6 24. Rxb7 Rd1 25. Ra7 Rxd4 26. Rxa6 Rb4 27. Ne3 Rxb2 28. Nxd5 Rb1+ 29. Kh2 Rb2 30. f3 Ra2 31. a5 Kg7 32. Ra8 h5 33. a6 g5 34. a7 g4 35. fxg4 hxg4 36. Ne7 Kf6 37. Nc6 Ra3 38. Rg8 1-0

[Event "EU-ch U12 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "9"]
[White "Huistra, Heikel"]
[Black "Burdova, Ksenija"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "44"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. Qb3 Na5 11. Qa4+ Nc6 12. 0-0 0-0 13. Rfe1 Nb6 14. Qb5 a6 15. Qh5 Nxc4 16. Nxc4 h6 17. Rad1 Qf6 18. Rd2 Qg6 19. Qxg6 fxg6 20. Nfe5 Nxe5 21. Nxe5 g5 22. Ng6 Rd8 1/2-1/2

[Event "EU-ch U12 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Chorvatova, Elena"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "42"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. bxc3 Nc6 7. d4 d5 8. c4 Be7 9. Bf4 Be6 10. cxd5 Bxd5 11. c3 0-0 12. Be2 Na5 13. 0-0 Nc4 14. Bxc4 Bxc4 15. Re1 Re8 16. Ne5 Be6 17. Qc2 Bd6 18. Rab1 Rb8 19. Qe4 Qc8 20. Re2 Bf5 21. Qd5 Bxe5 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "10"]
[White "Huistra, Heikel"]
[Black "Kommer, Bas"]
[Result "0-1"]
[ECO "C08"]
[PlyCount "60"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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. Nd2 c5 4. exd5 exd5 5. Bb5+ Bd7 6. Qe2+ Qe7 7. Bxd7+ Nxd7 8. Nb3 Qxe2+ 9. Nxe2 Ngf6 10. Be3 c4 11. Nc5 Nxc5 12. dxc5 Rc8 13. c6 b6 14. Nd4 Bc5 15. Nb5 Bxe3 16. Nd6+ Kd8 17. Nxf7+ Ke7 18. Nxh8 Bxf2+ 19. Kxf2 Ne4+ 20. Ke2 Rxh8 21. Rhe1 Kd6 22. Rad1 Re8 23. Kf1 Kxc6 24. Rd4 Rf8+ 25. Kg1 Kc5 26. Red1 Nf6 27. a3 a5 28. R4d2 b5 29. Re2 Ne4 30. b3 Nc3 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "13"]
[White "Huistra, Heikel"]
[Black "Roth, Maarten"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "75"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. Qb3 Na5 11. Qa4+ Nc6 12. Ne5 Bd7 13. Bxd5 Nxe5 14. Qb3 Be6 15. Bxe6 Qxd4 16. Bd5 c6 17. Bc4 0-0 18. Qc2 Rad8 19. Be2 Rfe8 20. Nb3 Nd3+ 21. Kd2 Nb4+ 22. Nxd4 Nxc2 23. Kxc2 Rxd4 24. Rhe1 Rde4 25. Kd2 Rf4 26. Bf3 Rd8+ 27. Kc2 Rf5 28. Rad1 Rf8 29. Rd7 Ra5 30. Kb1 b6 31. Ree7 a6 32. Bxc6 Rc5 33. Bd5 Rfc8 34. Bxf7+ Kf8 35. a3 Rc2 36. Bb3 Rxf2 37. Rxg7 Re8 38. Rg8# 1-0

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Snuverink, Michiel"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "46"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Ne5+ Kg8 12. Qxb4 Qf6 13. 0-0 g6 14. Qb3 c6 15. Qb4 Kg7 16. Nd2 Nxd2 17. Qxd2 Rf8 18. Rae1 Qh4 19. Re3 Rf4 20. Rh3 Bxh3 21. gxh3 Raf8 22. Nd7 Qxh3 23. Qe2 Rg4+ 0-1

[Event "EU-ch U12 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "8"]
[White "Huistra, Heikel"]
[Black "Tarata, C."]
[Result "0-1"]
[ECO "B92"]
[PlyCount "62"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Kh1 b5 10. a3 Bb7 11. Bd3 Nbd7 12. f4 Rc8 13. Qf3 Nc5 14. Rd1 Nxb3 15. cxb3 Qc7 16. Qg3 Kh8 17. b4 Rfd8 18. a4 bxa4 19. Rxa4 Rb8 20. Bxa6 Bxa6 21. Rxa6 Rxb4 22. Qe3 Qc4 23. Ra7 Re8 24. Nd5 Nxd5 25. Rxd5 Qxe4 26. Rda5 Qxe3 27. Bxe3 Bf6 28. Ra8 Rbb8 29. Rxb8 Rxb8 30. Ra7 exf4 31. Bxf4 Bxb2 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Wortel, Meike"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "80"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[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 g6 6. Bc4 Bg7 7. 0-0 0-0 8. Bg5 Nc6 9. Nb3 Ne5 10. Be2 Be6 11. Qd2 Qd7 12. Bh6 d5 13. exd5 Nxd5 14. Nxd5 Qxd5 15. Qxd5 Bxd5 16. Bxg7 Kxg7 17. Rad1 Rfd8 18. f4 Nc4 19. Bxc4 Bxc4 20. Rfe1 Be6 21. a3 Kf8 22. Nc5 Bd5 23. Re5 Bc6 24. Rde1 e6 25. g4 Rd2 26. R5e2 Rad8 27. Nd3 Rxe2 28. Rxe2 Bf3 29. Rf2 Bxg4 30. Nc5 b6 31. Ne4 Bf5 32. Ng3 h6 33. Ne2 Rd1+ 34. Rf1 Rxf1+ 35. Kxf1 Bxc2 36. Nd4 Be4 37. Nb5 a5 38. Nd6 Bd3+ 39. Kf2 Ke7 40. Nb7 Kd7 0-1

[Event "NED-ch U12"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "9"]
[White "Lahaye, Rick"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "56"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 Nc6 3. d3 e6 4. Nc3 Nf6 5. Bg5 Be7 6. Nf3 d5 7. Bxf6 Bxf6 8. e5 Nxe5 9. Nxe5 Bxe5 10. Bb5+ Bd7 11. Bxd7+ Qxd7 12. Qd2 Qc7 13. 0-0 Bxh2+ 14. Kh1 Bf4 15. Qe2 0-0 16. Rfe1 Qb6 17. Rab1 d4 18. Ne4 e5 19. Kg1 Qh6 20. Qg4 f5 21. Qh3 Qxh3 22. gxh3 fxe4 23. Rxe4 Rf5 24. c3 Raf8 25. f3 Be3+ 26. Kg2 Rg5+ 27. Kh2 Rxf3 28. cxd4 Bf4+ 0-1

[Event "EU-ch U12 Girls"]
[Site "Herculane"]
[Date "1994.??.??"]
[Round "7"]
[White "Pila Diez, Maria Gloria"]
[Black "Huistra, Heikel"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "70"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 Qc7 6. d3 h6 7. Be3 e5 8. Re1 d5 9. exd5 cxd5 10. Nxe5 Bd6 11. d4 cxd4 12. Bxd4 Ne7 13. Nc3 0-0 14. Nf3 Bg4 15. h3 Bh5 16. Qd3 Rfe8 17. Be5 Bxf3 18. Bxd6 Qxd6 19. Qxf3 Qc5 20. Rad1 d4 21. Nb1 Rab8 22. Qa3 Qxa3 23. Nxa3 Rxb2 24. Rxd4 Rxa2 25. Ra4 Kf8 26. Rxa6 Ra8 27. Ra7 Nc6 28. Ra4 Nd8 29. c4 Ne6 30. Rc1 Nd4 31. Rb1 Ne2+ 32. Kf1 Nc3 33. Rbb4 Ra1+ 34. Nb1 R8xa4 35. Rxa4 Nxa4 0-1

