[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.09"]
[Round "6"]
[White "Cioara, Andrei Nestor"]
[Black "Van der Heijden, Alan"]
[Result "1/2-1/2"]
[ECO "E65"]
[WhiteElo "2438"]
[BlackElo "2269"]
[PlyCount "54"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. g3 d6 4. Bg2 Nf6 5. 0-0 0-0 6. c4 Nbd7 7. Nc3 c5 8. d5 a6 9. a4 Rb8 10. e4 Ne8 11. Bf4 Nc7 12. Qd3 f6 13. h4 Ne5 14. Bxe5 fxe5 15. h5 Bf6 16. hxg6 hxg6 17. Rfb1 a5 18. Nh2 Kg7 19. Bf3 Rh8 20. Qe2 Rh7 21. Ng4 Qh8 22. Bg2 Bd7 23. Nb5 Nxb5 24. axb5 Ra8 25. f3 Bxg4 26. fxg4 Rh2 27. Qe3 Qh6 1/2-1/2

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.09"]
[Round "7"]
[White "Van der Heijden, Alan"]
[Black "Keetman, Maaike"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2269"]
[BlackElo "1956"]
[PlyCount "37"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nd7 3. e3 Ngf6 4. Nf3 e6 5. c4 c6 6. Nc3 Bd6 7. Bd3 0-0 8. 0-0 Qe7 9. cxd5 exd5 10. e4 dxe4 11. Nxe4 Bc7 12. Re1 Qd8 13. Qc2 h6 14. Bh4 Bb6 15. Rad1 a5 16. Bc4 a4 17. Ne5 Ba5 18. Nxd7 Bxd7 19. Nxf6+ 1-0

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.08"]
[Round "5"]
[White "Hovhannisyan, Mher"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2520"]
[BlackElo "2269"]
[PlyCount "71"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. Bc4 e6 6. 0-0 Ne7 7. Bf4 0-0 8. Qd2 b5 9. Bd3 b4 10. Ne2 c5 11. Bh6 Bb7 12. Ng3 Nd7 13. h4 Rc8 14. b3 e5 15. dxe5 Nxe5 16. Nxe5 dxe5 17. Bxg7 Kxg7 18. h5 Qd6 19. Qg5 Rcd8 20. Rad1 h6 21. Qc1 g5 22. Bc4 Qf6 23. Qe3 Rd4 24. Ne2 Rxe4 25. Qxc5 Nf5 26. Ng3 Rf4 27. Rfe1 Nd4 28. Qxe5 Nxc2 29. Qxf6+ Rxf6 30. Re7 Bc6 31. Rxa7 Re8 32. Bxf7 Rxf7 33. Nf5+ Kf8 34. Rxf7+ Kxf7 35. Nd6+ Ke7 36. Nxe8 1-0

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.08"]
[Round "4"]
[White "Van der Heijden, Alan"]
[Black "Weiler, Wolfgang"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2269"]
[BlackElo "2132"]
[PlyCount "74"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d5 4. Nf3 c5 5. dxc5 Nc6 6. Nbd2 Qa5 7. 0-0 Qxc5 8. e4 Nf6 9. Nb3 Qd6 10. exd5 Nxd5 11. Ng5 Ndb4 12. Qxd6 exd6 13. Re1+ Ne5 14. Nd4 0-0 15. Bd2 Nec6 16. Nxc6 Nxc6 17. c3 h6 18. Nh3 g5 19. f4 g4 20. Nf2 Bf5 21. Rad1 Rfe8 22. Be3 Rad8 23. Bd5 Rd7 24. Bc1 Rde7 25. Rxe7 Rxe7 26. Kf1 h5 27. Bb3 Rd7 28. Rd5 Ne7 29. Rd1 d5 30. Be3 b6 31. Bd4 Be6 32. Bxg7 Kxg7 33. Nd3 Nf5 34. Kf2 d4 35. Ne5 Bxb3 36. axb3 Rc7 37. c4 f6 1/2-1/2

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.07"]
[Round "2"]
[White "Kampman, Tijmen"]
[Black "Van der Heijden, Alan"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2091"]
[BlackElo "2269"]
[PlyCount "48"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 0-0 5. d3 c6 6. e4 a6 7. Be3 b5 8. h3 Bb7 9. Nge2 d5 10. cxd5 cxd5 11. e5 Nfd7 12. d4 Nb6 13. b3 b4 14. Nb1 a5 15. 0-0 a4 16. Nd2 Nc6 17. Nf4 e6 18. Qg4 axb3 19. axb3 Rxa1 20. Rxa1 Bc8 21. Nd3 f6 22. f4 Rf7 23. Qe2 fxe5 24. fxe5 Bf8 1/2-1/2

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.07"]
[Round "3"]
[White "Van der Heijden, Alan"]
[Black "Ducarmon, Renzo"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2269"]
[BlackElo "2072"]
[PlyCount "69"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 e6 4. e3 Nbd7 5. Bd3 c5 6. Nf3 c4 7. Be2 Qb6 8. Qc1 Bb4 9. Nd2 Qa5 10. 0-0 Bxc3 11. bxc3 Qxc3 12. Bf4 Qb4 13. c3 Qe7 14. e4 0-0 15. Bg5 h6 16. Bh4 g5 17. Bg3 Nxe4 18. Nxe4 dxe4 19. f3 exf3 20. Bxf3 Nb6 21. h4 Nd5 22. Re1 Qd8 23. Rb1 a6 24. a4 f6 25. Qc2 f5 26. hxg5 hxg5 27. Be5 Qa5 28. Bxd5 Qxd5 29. Rb6 Qd8 30. a5 Qe8 31. Qd2 Qh5 32. d5 f4 33. dxe6 f3 34. gxf3 Qxf3 35. Qxg5+ 1-0

[Event "Maastricht Limburg op-A 8th"]
[Site "Maastricht"]
[Date "2014.06.06"]
[Round "1"]
[White "Van der Heijden, Alan"]
[Black "Van den Doel, Erik"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2269"]
[BlackElo "2553"]
[PlyCount "111"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qc2 Bb7 8. d4 Nbd7 9. 0-0 c5 10. dxc5 Bxc5 11. b4 Bxb4 12. Qb2 Bd6 13. Rd1 Qb6 14. Be3 Bc5 15. Bxc5 Nxc5 16. Na3 0-0 17. Qxb5 Ba6 18. Qxb6 axb6 19. Nd4 Bxe2 20. Bxa8 Bxd1 21. Bg2 Ba4 22. Nc4 Rd8 23. Nc6 Bxc6 24. Bxc6 Rc8 25. Ne5 Ng4 26. Nxg4 Rxc6 27. Ne5 Rc7 28. Rd1 Kf8 29. Rd8+ Ke7 30. Rg8 h5 31. Rh8 g6 32. Rb8 Kf6 33. f4 Na4 34. Kg2 g5 35. Rh8 gxf4 36. gxf4 Kg7 37. Rxh5 Rc2+ 38. Kg3 Rxa2 39. f5 Nc5 40. fxe6 Ra3+ 41. Kg4 Ra4+ 42. Kf3 Nxe6 43. Nd7 b5 44. Ke3 Ra7 45. Nb6 Nc7 46. Rg5+ Kf6 47. Rc5 Rb7 48. Rc6+ Kg5 49. Nc8 Nd5+ 50. Kd4 Ne7 51. Rc5+ Kf4 52. Nxe7 Rxe7 53. Rxb5 f5 54. Kd3 Kg4 55. h3+ Kf4 56. Kd2 1/2-1/2

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.06.02"]
[Round "6"]
[White "Peng, Zhaoqin"]
[Black "Van der Heijden, Alan"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "2389"]
[BlackElo "2271"]
[PlyCount "108"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 c6 2. c4 f5 3. Nc3 Nf6 4. Nf3 d6 5. Qc2 g6 6. e4 fxe4 7. Nxe4 Nxe4 8. Qxe4 Bf5 9. Qe3 Na6 10. Bd3 Qd7 11. 0-0 Bg7 12. Bxf5 Qxf5 13. Bd2 Bf6 14. Rae1 Nc7 15. Re2 0-0 16. Rfe1 b5 17. b3 bxc4 18. bxc4 Rab8 19. Qa3 Rb7 20. Qa4 Na8 21. Qxc6 Rc7 22. Qa6 Qd3 23. Qa5 Qxc4 24. h3 Nb6 25. Bh6 Rfc8 26. h4 Qd5 27. Qd2 Qf5 28. Qb2 Nd5 29. Rc1 Rxc1+ 30. Bxc1 Qd3 31. Bh6 Nc3 32. Re1 Nb5 33. Be3 Rc2 34. Qb1 Nc3 35. Qb8+ Kg7 36. Bg5 Bxg5 37. hxg5 Ne2+ 38. Kh1 Qe4 39. Qxa7 Rb2 40. a4 Kf7 41. Qa6 Qc2 42. Kh2 Nf4 43. Rf1 Rb3 44. Qa5 Rxf3 45. gxf3 Qe2 46. Kg3 Nh5+ 47. Kg2 Nf4+ 48. Kg3 Qxf1 49. Kxf4 Qxf2 50. Qd5+ Kg7 51. a5 Qd2+ 52. Ke4 Qe2+ 53. Kf4 Qd2+ 54. Ke4 Qe2+ 1/2-1/2

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.06.02"]
[Round "5"]
[White "Van der Heijden, Alan"]
[Black "Van Eeden, Ed"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2271"]
[PlyCount "119"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 c5 2. e3 g6 3. Nf3 Bg7 4. Be2 b6 5. a4 d6 6. Na3 Nd7 7. c3 a6 8. b4 Bb7 9. Qb3 Ngf6 10. 0-0 Qc7 11. c4 0-0 12. Bb2 e6 13. Rfd1 Rad8 14. Nc2 Rfe8 15. a5 Rb8 16. dxc5 dxc5 17. axb6 Qxb6 18. Ne5 Nxe5 19. Bxe5 Rbd8 20. Qb2 Be4 21. Rxd8 Qxd8 22. bxc5 Qd2 23. Ne1 Qxb2 24. Bxb2 Nd7 25. Bxg7 Kxg7 26. f3 Bb7 27. c6 Bxc6 28. Rxa6 Rc8 29. Nd3 Kf6 30. Kf2 Rc7 31. e4 Ke7 32. Ke3 Bb7 33. Ra7 Kd6 34. f4 f6 35. e5+ fxe5 36. fxe5+ Nxe5 37. Nxe5 Kxe5 38. Bf3 Rxc4 39. Rxb7 h6 40. Rh7 h5 41. Rd7 Rb4 42. Rb7 Ra4 43. Rb5+ Kf6 44. Be4 h4 45. h3 g5 46. Bf3 Ra3+ 47. Kd4 Ra4+ 48. Kc5 Ra3 49. Rb6 Re3 50. Rb4 Ke5 51. Rg4 Kf5 52. Kd6 e5 53. Bd5 Re2 54. Ke7 e4 55. Be6+ Kg6 56. Bd7 e3 57. Bc6 Kf5 58. Be4+ Ke5 59. Bf3 Re1 60. Rxg5+ 1-0

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.06.01"]
[Round "4"]
[White "Janssen, Ruud"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "2469"]
[BlackElo "2271"]
[PlyCount "65"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 g6 3. Nc3 d5 4. d4 Bg7 5. Bf4 Nf6 6. e3 0-0 7. Rc1 Nbd7 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Bc7 Qe8 11. Qb3 Nf6 12. Ne5 a6 13. Be2 b5 14. 0-0 Be6 15. Qb4 Ra7 16. Qa5 Ne4 17. Bb6 Rb7 18. Qxa6 Qa8 19. Qa5 Qxa5 20. Bxa5 Ra8 21. Nc6 Nd6 22. a3 Nc4 23. Bb4 Nxb2 24. Nxe7+ Kh8 25. Bf3 Rd7 26. Rc8+ Rxc8 27. Nxc8 Nc4 28. Bc5 Rc7 29. Nd6 Nxd6 30. Bxd6 Rc2 31. Rb1 Bf5 32. Bxd5 Rd2 33. Rc1 1-0

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.06.01"]
[Round "2"]
[White "Lentjes, Noud"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2019"]
[BlackElo "2271"]
[PlyCount "102"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Nbd7 7. Qd2 b5 8. f3 Bb7 9. 0-0-0 Rc8 10. g4 e6 11. h4 Be7 12. Rg1 Nb8 13. Bxf6 gxf6 14. Bd3 b4 15. Nce2 d5 16. Qh6 Qd6 17. g5 fxg5 18. hxg5 dxe4 19. fxe4 Nd7 20. g6 fxg6 21. Rxg6 Nf8 22. Nf5 Qe5 23. Ng7+ Kd7 24. Rgg1 Bf6 25. Nd4 Rc5 26. Nh5 Bg5+ 27. Rxg5 Qxg5+ 28. Qxg5 Rxg5 29. Be2 Ke7 30. Bf3 Nd7 31. Rh1 Rhg8 32. Kd2 Ne5 33. Nf4 Nxf3+ 34. Nxf3 Rg4 35. Rxh7+ R8g7 36. Rxg7+ Rxg7 37. Ke3 Rg4 38. Ne5 Rg1 39. Kd4 Re1 40. Neg6+ Kf6 41. e5+ Kf5 42. Kc5 Rb1 43. b3 Rb2 44. Kb6 Be4 45. Kxa6 Rxa2+ 46. Kb5 Rxc2 47. Kxb4 Rf2 48. Kc5 Rxf4 49. Nxf4 Kxf4 50. Kd6 Kf5 51. b4 Bd3 0-1

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.06.01"]
[Round "3"]
[White "Van der Heijden, Alan"]
[Black "Vereggen, Lars"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2271"]
[BlackElo "2068"]
[PlyCount "135"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. 0-0 e6 6. Nc3 Nge7 7. d3 0-0 8. Bf4 d5 9. cxd5 exd5 10. Qd2 f6 11. h4 Be6 12. Qe3 Bf7 13. Qxc5 Rc8 14. Qa3 a6 15. Na4 Re8 16. Nc5 Qb6 17. Rac1 d4 18. Bh3 f5 19. Ng5 Bd5 20. Nge6 Bxe6 21. Nxe6 Nd5 22. Nxg7 Kxg7 23. Bd6 Rxe2 24. Bg2 Nf6 25. Bf3 Ree8 26. Rc4 Ng4 27. Bc5 Qb5 28. Bxc6 Rxc6 29. Bxd4+ Kg8 30. Rxc6 Qxc6 31. Qb3+ Kf8 32. Qb4+ Kf7 33. Qc4+ Re6 34. Rc1 Qxc4 35. Rxc4 Nh6 36. Be3 Ng4 37. Bd4 Nh6 38. Rc8 Re7 39. Kf1 Rd7 40. Bc5 Ke6 41. Ke2 Nf7 42. d4 Kd5 43. Kd3 Nd8 44. Bb6 Ne6 45. a4 Rf7 46. f4 Rd7 47. Rc1 Re7 48. b4 Re8 49. Rc2 Re7 50. Re2 Rf7 51. Re5+ Kd6 52. d5 Ng7 53. Bc5+ Kd7 54. Bf2 Ne8 55. Kd4 Nd6 56. Kd3 Rg7 57. Re6 Rf7 58. Bc5 Ne4 59. Rb6 Kd8 60. Kd4 Nxg3 61. Ke5 Ne4 62. h5 gxh5 63. Rh6 Nc3 64. Ke6 Rd7 65. d6 Nxa4 66. Bd4 Kc8 67. Rxh5 b6 68. Rxf5 1-0

[Event "Maarssen OKU op-A"]
[Site "Maarssen"]
[Date "2013.05.31"]
[Round "1"]
[White "Van der Heijden, Alan"]
[Black "Wagenaar, Harm Theo"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2271"]
[BlackElo "2048"]
[PlyCount "91"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nf6 3. Bg2 e6 4. Nf3 d5 5. 0-0 Be7 6. d3 0-0 7. Nbd2 Nc6 8. a3 Qc7 9. Rb1 h6 10. b4 cxb4 11. axb4 Nxb4 12. Bb2 Nc6 13. Qa4 Bd7 14. Qa1 Rfc8 15. Ne5 Qd8 16. cxd5 exd5 17. Nb3 Be6 18. Nd4 Nxd4 19. Bxd4 b6 20. f4 Rc2 21. f5 Bc8 22. e3 Qc7 23. Qa4 Bb7 24. Nf3 Qc6 25. Qa1 Qd7 26. Ne5 Qc8 27. Rbc1 Bd6 28. Rxc2 Qxc2 29. Rc1 Qb3 30. Rc3 Qb5 31. Nf3 Bc5 32. h3 a5 33. Bf1 Qe8 34. Kf2 Qe7 35. Qc1 Rc8 36. Qc2 Re8 37. Qc1 Rc8 38. Bxf6 Bxe3+ 39. Qxe3 Qxe3+ 40. Kxe3 Re8+ 41. Kd2 gxf6 42. Nd4 Re5 43. Rc7 Ba6 44. Ra7 Bc8 45. Ra8 Re8 46. Bg2 1-0

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.24"]
[Round "7"]
[White "Coenen, Eduard"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2140"]
[BlackElo "2235"]
[PlyCount "108"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 c6 2. c3 f5 3. g3 Nf6 4. Bg2 g6 5. h4 d6 6. Nf3 Bg7 7. Bg5 Ne4 8. Nbd2 h6 9. Bf4 Nd7 10. Nxe4 fxe4 11. Nd2 d5 12. Nxe4 dxe4 13. Bxe4 Nf8 14. Qd3 Bf5 15. Bxf5 gxf5 16. Qxf5 Qd5 17. Qxd5 cxd5 18. 0-0-0 Ne6 19. Bd2 Rc8 20. e3 0-0 21. f4 h5 22. Kb1 Bf6 23. Rde1 Kf7 24. e4 dxe4 25. Rxe4 Rg8 26. f5 Ng7 27. Rf1 Ne8 28. Bf4 Nd6 29. Bxd6 exd6 30. Re6 Rxg3 31. Rxd6 Rd8 32. Re6 Rg2 33. a4 Rd5 34. Re4 Ra5 35. b3 b5 36. Rff4 bxa4 37. b4 Rb5 38. Re6 a5 39. Ra6 axb4 40. Ra7+ Kg8 41. Ra8+ Kh7 42. Ra7+ Rg7 43. Rxa4 bxc3+ 44. Kc2 Rc7 45. Ra2 Rb4 46. Kd3 Rxd4+ 47. Rxd4 Bxd4 48. Rc2 Bf6 49. Ke4 Rc5 50. Rc1 Re5+ 51. Kf4 Re2 52. Kf3 Rh2 53. Ke4 Rxh4+ 54. Kd5 Rg4 0-1

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.24"]
[Round "6"]
[White "Van der Heijden, Alan"]
[Black "Van Gool, Henk"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2235"]
[BlackElo "2161"]
[PlyCount "93"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 d6 3. g3 Nf6 4. Bg2 g6 5. b3 Bg7 6. Bb2 Nc6 7. 0-0 0-0 8. d4 Nd7 9. c3 e5 10. dxc5 dxc5 11. Na3 Nb6 12. Nb5 a6 13. Nd6 Qc7 14. Nxc8 Raxc8 15. Qd2 Rfd8 16. Qe3 c4 17. Rfd1 Na5 18. b4 Nc6 19. Bh3 Rb8 20. a4 Rxd1+ 21. Rxd1 Nxa4 22. Rd7 Qc8 23. Bc1 b5 24. Qf3 Qe8 25. Bg5 Nd8 26. Re7 Qf8 27. Bd7 Nb7 28. Bc6 Nd6 29. Ra7 f6 30. Bd5+ Kh8 31. Be3 Qc8 32. Bh6 Nb7 33. Bxg7+ Kxg7 34. Rxa6 Qd8 35. Ra7 Qc7 36. Qe3 Kh8 37. Qh6 Qd8 38. Rxb7 Rxb7 39. Bxb7 Nb6 40. Kg2 Kg8 41. Qe3 Qc7 42. Bd5+ Kf8 43. h4 Ke7 44. h5 Qd6 45. Bg8 Nd7 46. Bxh7 gxh5 47. Bf5 1-0

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.23"]
[Round "5"]
[White "Bijlsma, Nick"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "2125"]
[BlackElo "2235"]
[PlyCount "47"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 e6 7. Nc3 d6 8. Bd3 Nc6 9. exd6 Bxd6 10. 0-0 Nce7 11. Re1 Bd7 12. Ne5 Nxc3 13. bxc3 0-0 14. Qh5 Ng6 15. Re3 Bxe5 16. dxe5 f5 17. Rh3 Kf7 18. g4 Qc7 19. gxf5 exf5 20. Ba3 Qxe5 21. Bc4+ Kf6 22. Rd1 Rfc8 23. Bb3 Re8 24. Re3 1-0

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.23"]
[Round "4"]
[White "Van der Heijden, Alan"]
[Black "Larmuseau, Michiel"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2235"]
[BlackElo "2068"]
[PlyCount "77"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Be2 d5 5. 0-0 Nbd7 6. c4 dxc4 7. Bxc4 Be7 8. Qe2 0-0 9. Rd1 Qc7 10. Nc3 a6 11. a4 cxd4 12. exd4 Nb6 13. Bd3 Nbd5 14. Ne5 Nxc3 15. bxc3 Nd5 16. c4 Nf6 17. Bf4 Qd8 18. Qf3 Bd6 19. Qh3 g6 20. Bg5 Be7 21. Bh6 Qxd4 22. Bxf8 Bxf8 23. Nxf7 e5 24. Qf3 Bg7 25. Bxg6 Bg4 26. Nh6+ Bxh6 27. Qxf6 Qxc4 28. Bf5 Rf8 29. Qxh6 Bxf5 30. Qg5+ Bg6 31. Qxe5 Qc2 32. Qd5+ Rf7 33. Rd2 Qc3 34. Re1 Qf6 35. a5 Kg7 36. Rde2 Rc7 37. Re6 Qf7 38. Qe5+ Kh6 39. h4 1-0

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.22"]
[Round "3"]
[White "Berg, Emanuel"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "2616"]
[BlackElo "2235"]
[PlyCount "155"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. Bc4 Nb6 7. Bb3 d5 8. exd6 Qxd6 9. cxd4 Be6 10. Nc3 Bxb3 11. Qxb3 e6 12. d5 Nxd5 13. Qxb7 Nxc3 14. Qc8+ Qd8 15. Qxc3 Nd7 16. 0-0 Rc8 17. Qd4 Nc5 18. Qg4 h5 19. Qg3 Ne4 20. Qe5 Nf6 21. Qe2 Qb6 22. Be3 Qb7 23. Rac1 Be7 24. Rxc8+ Qxc8 25. Rc1 Qb7 26. Nd4 0-0 27. Nc6 Bd6 28. Na5 Qd5 29. Nc4 Bb8 30. h3 Rd8 31. b3 Qe4 32. Rd1 Rxd1+ 33. Qxd1 Nd5 34. Bc5 Nf4 35. Ne3 Qe5 36. b4 Ne2+ 37. Kf1 Nf4 38. h4 Qe4 39. Qc2 Qe5 40. Qd1 Qe4 41. Qc2 Qe5 42. g3 Qa1+ 43. Nd1 Nd5 44. Kg2 Be5 45. Ne3 Nc3 46. Nc4 Bf6 47. a3 Qe1 48. Ne3 Qa1 49. Qd3 Qxa3 50. Qd6 Qa4 51. Qf8+ Kh7 52. Qxf7 Qc6+ 53. f3 Qb5 54. Qxh5+ Kg8 55. Qg4 Qe2+ 56. Kh3 Kf7 57. Qh5+ Kg8 58. Qe8+ Kh7 59. Qh5+ Kg8 60. Qg4 Kf7 61. h5 Qd3 62. Qf4 Nb5 63. Qb8 Bd8 64. Qb7+ Bc7 65. Qxa6 Qd7 66. Qa2 Nc3 67. Qc2 Be5 68. Ng4 Qd5 69. Qg6+ Kg8 70. Nh6+ Kh8 71. Nf7+ Kg8 72. Nh6+ Kh8 73. Qe8+ Kh7 74. Qg8+ Kxh6 75. Qh8+ Kg5 76. Be7+ Bf6 77. Qxg7+ Kxh5 78. g4# 1-0

[Event "Maastricht Limburg op-A 4th"]
[Site "Maastricht"]
[Date "2010.05.22"]
[Round "2"]
[White "Van der Heijden, Alan"]
[Black "Skutta, Bernd"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2235"]
[BlackElo "2121"]
[PlyCount "83"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. e3 e6 5. Qf3 c5 6. 0-0-0 Be7 7. Nge2 0-0 8. Nf4 a6 9. Qg3 b5 10. Bh6 Ne8 11. h4 Kh8 12. Bg5 Ndf6 13. dxc5 Qa5 14. f3 b4 15. Nb1 Qxc5 16. Nd3 Qa5 17. Qe1 Qb6 18. e4 a5 19. e5 Ng8 20. Be3 Qc6 21. g4 Nc7 22. g5 Ba6 23. h5 d4 24. Bf4 Nd5 25. Qe4 Rac8 26. Rh2 Nxf4 27. Qxf4 h6 28. gxh6 Nxh6 29. Bh3 a4 30. b3 Rc7 31. Rg2 Rfc8 32. Kb2 a3+ 33. Ka1 Qd5 34. Qg3 Bf8 35. Nxb4 Qb5 36. Rxd4 f6 37. Nxa6 Qxa6 38. exf6 gxf6 39. Rgd2 f5 40. Rd8 Qa8 41. Rxf8+ Rxf8 42. Qxc7 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.11"]
[Round "9"]
[White "Van der Heijden, Alan"]
[Black "Porte, Henrik"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2215"]
[BlackElo "2105"]
[PlyCount "51"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. Qc2 e6 5. g3 Be7 6. Bg2 0-0 7. 0-0 dxc4 8. Qxc4 b5 9. Qc2 Bb7 10. Nbd2 Nbd7 11. Nb3 h6 12. Rd1 Qb6 13. Bd2 c5 14. dxc5 Nxc5 15. Ba5 Qa6 16. Bb4 Nxb3 17. axb3 Be4 18. Qxe4 Qxa1 19. Rxa1 Nxe4 20. Bxe7 Rfe8 21. Bb4 Rac8 22. Nd4 Nf6 23. Nc6 Kh8 24. Rxa7 Nd5 25. Bxd5 exd5 26. Nd4 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.10"]
[Round "8"]
[White "Ikonnikov, Vyacheslav"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2558"]
[BlackElo "2215"]
[PlyCount "79"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 b6 6. Bg2 Bb7 7. 0-0 Bxd2 8. Nbxd2 0-0 9. Qc2 d5 10. cxd5 exd5 11. Rac1 Na6 12. Rfe1 c5 13. dxc5 Nxc5 14. Nd4 g6 15. N2f3 a5 16. a3 a4 17. Qd2 Nfe4 18. Qf4 Qf6 19. Qxf6 Nxf6 20. Ne5 Rfe8 21. Nec6 Bxc6 22. Nxc6 Re6 23. Nd4 Re5 24. Red1 Rc8 25. e3 Re7 26. Bh3 Rcc7 27. Nb5 Rc6 28. Rc2 Re4 29. Rd4 Kf8 30. Bg2 Ree6 31. Bxd5 Nxd5 32. Rxd5 Re4 33. Rd4 Re5 34. Rcc4 Rf6 35. Nc3 Ne6 36. Rd5 Ng5 37. Kg2 Rxd5 38. Nxd5 Rd6 39. Nc3 Rd2 40. Rb4 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.09"]
[Round "7"]
[White "Van Dort, Lars"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2109"]
[BlackElo "2215"]
[PlyCount "40"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 b5 8. Qf3 Bb7 9. Bd3 e6 10. 0-0-0 Be7 11. Rhe1 h6 12. Bh4 g5 13. fxg5 hxg5 14. Bxg5 Ne5 15. Qg3 b4 16. Na4 Qa5 17. b3 Nh5 18. Qh3 Bxg5+ 19. Kb1 Ke7 20. Nb2 Nf6 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.08"]
[Round "6"]
[White "Van der Heijden, Alan"]
[Black "Van Haastert, Edwin"]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "2215"]
[BlackElo "2408"]
[PlyCount "148"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nc2 e6 6. Nc3 Nf6 7. g3 d5 8. cxd5 exd5 9. Bg2 d4 10. Nb1 Bc5 11. 0-0 0-0 12. Nd2 Bg4 13. Nf3 Rfe8 14. Nce1 Rad8 15. Nd3 Nb4 16. a3 Nxd3 17. Qxd3 Qe6 18. b4 Bb6 19. Bf4 Qxe2 20. Qxe2 Rxe2 21. Ne5 d3 22. Be3 Bxe3 23. fxe3 d2 24. Bxb7 Be6 25. Nc6 Rd7 26. Nd4 Rxe3 27. Nxe6 Rxb7 28. Nc5 Rb8 29. Rad1 Rd8 30. Rf2 Re1+ 31. Rf1 Re3 32. Rf2 Rxa3 33. Rfxd2 Rxd2 34. Rxd2 h5 35. Kg2 Ng4 36. Ne4 f6 37. h3 Ne5 38. Nc5 Kf7 39. Rb2 Nc4 40. Re2 g5 41. Kh2 Ne3 42. Rf2 Kg6 43. Nd7 f5 44. Nf8+ Kg7 45. Ne6+ Kf6 46. Nd4 Kg6 47. Nb5 Ra4 48. Re2 f4 49. gxf4 gxf4 50. Rf2 Kg5 51. Re2 h4 52. Nd4 Rxb4 53. Nf3+ Kf5 54. Ra2 Ke4 55. Ng5+ Kd3 56. Ra3+ Kd4 57. Rxa7 Rb2+ 58. Kh1 Rf2 59. Ra4+ Kd3 60. Ra3+ Ke2 61. Ra2+ Ke1 62. Ra1+ Nd1 63. Ne4 Rf3 64. Kg1 Re3 65. Nf2 Rg3+ 66. Kh2 Kxf2 67. Rxd1 Re3 68. Rg1 f3 69. Rg2+ Ke1 70. Rg1+ Ke2 71. Ra1 f2 72. Ra2+ Kf3 73. Ra1 Re1 74. Rxe1 fxe1N 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.07"]
[Round "5"]
[White "Roggeveen, Wouter"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "B83"]
[WhiteElo "1941"]
[BlackElo "2215"]
[PlyCount "104"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 7. 0-0 Be7 8. Be3 0-0 9. f4 Bd7 10. Nb3 a5 11. a4 Nb4 12. Bf3 Bc6 13. Nd4 Nd7 14. Ncb5 Nc5 15. c3 Nba6 16. Nxc6 bxc6 17. Nd4 Qd7 18. e5 d5 19. g4 f6 20. exf6 Bxf6 21. g5 Bxd4 22. cxd4 Nb7 23. Bg4 Nd6 24. Bd2 Nc7 25. Qe1 Nc4 26. b3 Nxd2 27. Qxd2 Qd6 28. Rae1 Rab8 29. Qe3 Rfe8 30. Rf3 Rb4 31. Qc3 Rf8 32. Qc5 Qxc5 33. dxc5 Kf7 34. Kg2 Rfb8 35. Rfe3 Re4 36. Kf3 Rxe3+ 37. Rxe3 g6 38. Rc3 Rb4 39. Kg3 d4 40. Rc4 Rxb3+ 41. Bf3 d3 42. Kg4 Nd5 43. Bxd5 exd5 44. Rd4 Ke6 45. h4 Rc3 46. h5 Rb3 47. h6 Rc3 48. f5+ gxf5+ 49. Kh5 d2 50. g6 Kf6 51. gxh7 Rh3+ 52. Rh4 d1Q# 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.06"]
[Round "4"]
[White "Van der Heijden, Alan"]
[Black "Puijman, Jan"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2215"]
[PlyCount "57"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c4 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. d5 exd5 8. Nh4 0-0 9. Nc3 g6 10. cxd5 d6 11. e4 Nfd7 12. f4 Bxh4 13. gxh4 Qxh4 14. Nb5 Ba6 15. Nc7 Bxf1 16. Qxf1 Qd8 17. Nxa8 Nf6 18. e5 Ng4 19. Qe2 h5 20. Bd2 Re8 21. h3 Nh6 22. e6 Nf5 23. Re1 Kf8 24. Bc3 Qc8 25. Be4 fxe6 26. Qg2 exd5 27. Qxg6 Rxe4 28. Qf6+ Kg8 29. Qh8+ 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.05"]
[Round "3"]
[White "Caruana, Fabiano"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "2549"]
[BlackElo "2215"]
[PlyCount "71"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g4 Nge7 7. Be3 a6 8. Nb3 b5 9. f4 b4 10. Na4 Rb8 11. Qd2 Ng6 12. 0-0-0 Be7 13. g5 e5 14. f5 Nf4 15. h4 h6 16. Rg1 hxg5 17. hxg5 Bxg5 18. Kb1 Rh6 19. Nb6 Rxb6 20. Bxb6 Qxb6 21. Rxg5 Kf8 22. Nc1 Nd4 23. Qf2 Bb7 24. Nb3 Qd8 25. Qg3 Nh5 26. Qe3 Nf4 27. Rg4 Nxb3 28. axb3 Rh1 29. Qf3 Rh6 30. Bc4 Rh3 31. Qf1 Rh6 32. Qg1 Qf6 33. Qa7 Bxe4 34. Rxd6 Bxc2+ 35. Ka2 Bb1+ 36. Ka1 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.05"]
[Round "2"]
[White "Van der Heijden, Alan"]
[Black "Sinke, Wim"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "2215"]
[BlackElo "1983"]
[PlyCount "62"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bc5 7. Nf3 Nd7 8. Qa4 0-0 9. d4 exd4 10. cxd4 Nb6 11. Qd1 Bb4+ 12. Bd2 Qd6 13. 0-0 Bxd2 14. Qxd2 c6 15. e4 f6 16. Qc3 Be6 17. a4 Bc4 18. Rfc1 Ba6 19. Nh4 Qe6 20. a5 Nc8 21. d5 cxd5 22. exd5 Qd7 23. Qc7 Qxc7 24. Rxc7 Nd6 25. Bh3 f5 26. Re1 g5 27. Ree7 Ne8 28. Bxf5 Rxf5 29. Nxf5 Nxc7 30. Rxc7 Re8 31. Nh6+ Kf8 1-0

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.14"]
[Round "9"]
[White "Van der Heijden, Alan"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "79"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Bd3 Nc6 6. Nge2 e5 7. d5 Ne7 8. f3 h6 9. Be3 g5 10. h4 g4 11. Qd2 Nh5 12. 0-0-0 Ng6 13. fxg4 Bxg4 14. g3 b6 15. Rdf1 a6 16. Qe1 0-0 17. Rh2 Qd7 18. Rhf2 Bh3 19. Rh1 Bg4 20. Qf1 Ne7 21. Qg2 f5 22. exf5 Nxf5 23. Bd2 Nd4 24. Nxd4 Rxf2 25. Qxf2 exd4 26. Ne2 Rf8 27. Nf4 Be5 28. Rf1 Bh3 29. Rg1 Bg4 30. Qg2 Bxf4 31. gxf4 Nf6 32. Qf2 c5 33. dxc6 Qxc6 34. Qxd4 Qc5 35. Bc3 h5 36. b4 Qc7 37. Bg6 Kh8 38. f5 d5 39. Re1 Qd8 40. Re8 1-0

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.13"]
[Round "8"]
[White "Sparreboom, Willem"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "A86"]
[WhiteElo "2036"]
[PlyCount "60"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 c6 2. c4 f5 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Nh3 d6 7. d5 e5 8. dxe6 Bxe6 9. Bf4 Bxc4 10. Qxd6 Qxd6 11. Bxd6 Na6 12. 0-0 0-0-0 13. Rfd1 Rhe8 14. e4 Nxe4 15. Nxe4 fxe4 16. Ng5 b5 17. Bh3+ Kb7 18. Bf4 Bxb2 19. Rxd8 Rxd8 20. Rb1 Nc5 21. Bf1 Bxf1 22. Kxf1 Bd4 23. Nf7 Rd5 24. a4 Nxa4 25. Nd6+ Kb6 26. Nxe4 Nc3 27. Re1 Nxe4 28. Rxe4 b4 29. Re7 b3 30. Bc7+ Ka6 0-1

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.12"]
[Round "7"]
[White "Van der Heijden, Alan"]
[Black "Brinck Claussen, Bjorn"]
[Result "0-1"]
[ECO "A34"]
[BlackElo "2348"]
[PlyCount "160"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. d4 Nxc3 6. bxc3 g6 7. e3 Bg7 8. Be2 0-0 9. 0-0 Qc7 10. Nd2 b6 11. Nb3 Bb7 12. a4 Rd8 13. Bb2 e5 14. Qb1 Nd7 15. Rc1 a6 16. Ba3 Bf8 17. Bf1 Rac8 18. Qb2 Qc6 19. Nd2 Qf6 20. d5 Bxd5 21. Bxa6 Ra8 22. Bb5 Bh6 23. Nf1 Nf8 24. Qe2 Ne6 25. Rd1 Nc7 26. c4 Bb7 27. Bb2 Qe7 28. Bc3 Bg7 29. Rxd8+ Rxd8 30. a5 Nxb5 31. cxb5 bxa5 32. Rxa5 Qe6 33. f3 e4 34. Bxg7 exf3 35. gxf3 Kxg7 36. Ra7 Qb6 37. Ra2 c4 38. Qxc4 Bxf3 39. Rc2 Re8 40. Qd4+ Qxd4 41. exd4 Rb8 42. Rb2 Rb6 43. Ne3 Bc6 44. Rc2 Bd7 45. Rc7 Bxb5 46. Ng4 Rd6 47. Ne5 Be8 48. Rc8 Kf8 49. Nf3 Ke7 50. Kf2 Bd7 51. Rh8 h5 52. Ke3 Bc6 53. Ne5 Bd5 54. Rc8 Kf6 55. h4 Kf5 56. Rc1 Kf6 57. Rc7 Ra6 58. Nd7+ Kg7 59. Kf4 Ra3 60. Ke5 Bg2 61. Nc5 Re3+ 62. Kf4 Re1 63. Kg3 Bd5 64. Rd7 Be6 65. Rd8 Rg1+ 66. Kf4 Rg4+ 67. Ke5 Bf5 68. d5 Rxh4 69. d6 Rh1 70. Na6 h4 71. Nc7 f6+ 72. Kf4 Rf1+ 73. Ke3 Rd1 74. Ke2 Bg4+ 75. Kf2 h3 76. Kg3 Bf5 77. Rb8 Rd3+ 78. Kf2 h2 79. Rb1 Rd2+ 80. Ke3 Bxb1 0-1

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.11"]
[Round "6"]
[White "Porte, Henrik"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "66"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 c6 2. c4 f5 3. Nc3 Nf6 4. Nf3 g6 5. Bg5 Ne4 6. Nxe4 fxe4 7. Nd2 Qa5 8. h4 Bg7 9. e3 h6 10. Bf4 0-0 11. Qc2 d5 12. cxd5 cxd5 13. Bc7 b6 14. a3 Na6 15. Bg3 Bb7 16. Qd1 b5 17. b4 Qb6 18. Be2 Nc7 19. Rc1 Ne8 20. Nb3 Nd6 21. Nc5 Bc8 22. 0-0 Kh7 23. Qb3 Nc4 24. Bxc4 bxc4 25. Qc2 Bf5 26. Qa4 Rfd8 27. f3 exf3 28. gxf3 g5 29. hxg5 Qg6 30. Kf2 Qxg5 31. Rh1 Bxd4 32. Bf4 Qxf4 33. exd4 Qd2+ 0-1

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.10"]
[Round "5"]
[White "Van der Heijden, Alan"]
[Black "Peek, Maurice"]
[Result "0-1"]
[ECO "A14"]
[BlackElo "2366"]
[PlyCount "82"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. Nc3 d5 9. cxd5 Nxd5 10. Nxd5 Bxd5 11. d4 Bf6 12. Qd2 cxd4 13. Bxd4 Nc6 14. Bxf6 Qxf6 15. Rac1 Rac8 16. Rfd1 Rfd8 17. Qc2 e5 18. Qb2 g6 19. h4 h5 20. Ng5 Bxg2 21. Kxg2 Rxd1 22. Rxd1 Nd4 23. Rd2 Qc6+ 24. Kh2 f6 25. e3 Nc2 26. Nf3 Nxe3 27. fxe3 Qxf3 28. Rf2 Qd1 29. Rd2 Qe1 30. Re2 Qc1 31. Qxc1 Rxc1 32. Rd2 Rc7 33. Kg2 e4 34. a4 Kf7 35. Rd4 f5 36. Rd8 Rc2+ 37. Kf1 Rc3 38. Rd7+ Ke6 39. Rxa7 Rxe3 40. Rb7 Rxb3 41. a5 Rxg3 0-1

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.09"]
[Round "4"]
[White "Galle, Andre"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "A86"]
[PlyCount "52"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 c6 2. c4 f5 3. g3 Nf6 4. Bg2 g6 5. Nc3 Bg7 6. e3 d6 7. Nge2 a5 8. b3 Na6 9. a3 Nc7 10. Ra2 0-0 11. 0-0 Qe8 12. h3 Rb8 13. Kh2 Bd7 14. f4 b5 15. d5 bxc4 16. bxc4 cxd5 17. Nxd5 Nfxd5 18. cxd5 Ba4 19. Qd2 Bb3 20. Rb2 Qf7 21. Qxa5 Bxb2 22. Bxb2 Nxd5 23. Bxd5 Bxd5 24. Ba1 Rfc8 25. Nd4 Ba8 26. Qd2 Qd5 0-1

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.08"]
[Round "3"]
[White "Van der Heijden, Alan"]
[Black "Volke, Karsten"]
[Result "1/2-1/2"]
[ECO "A34"]
[BlackElo "2477"]
[PlyCount "65"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. d4 Nxc3 6. bxc3 g6 7. e3 Bg7 8. Be2 0-0 9. 0-0 Nd7 10. Nd2 Qc7 11. Nb3 b6 12. a4 Bb7 13. a5 Nf6 14. Bb2 Rfd8 15. Qc1 cxd4 16. cxd4 Qd7 17. Nd2 Nd5 18. Qd1 e5 19. Nf3 Qe6 20. Re1 Rac8 21. Qb3 e4 22. Ne5 Bxe5 23. dxe5 Nf4 24. Qxe6 Nxe6 25. axb6 axb6 26. Ra7 Rc2 27. Bg4 Rxb2 28. Bxe6 Bd5 29. Bxd5 Rxd5 30. e6 fxe6 31. g4 Rdd2 32. Rf1 Rd8 33. Re7 1/2-1/2

[Event "Helmond op"]
[Site "Helmond"]
[Date "2003.07.06"]
[Round "5"]
[White "Venis, Ruben"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2221"]
[PlyCount "59"]
[EventDate "2003.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 c6 2. c4 f5 3. d4 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Nc3 d6 8. d5 e5 9. dxe6 Bxe6 10. b3 h6 11. Bb2 Na6 12. Qc2 Qe7 13. Rad1 Rad8 14. Nh4 Qf7 15. Rd2 Rd7 16. Rfd1 Rfd8 17. Nd5 Bxd5 18. cxd5 Nb4 19. Qc4 Nbxd5 20. Bxf6 Nxf6 21. Qa4 a6 22. e4 fxe4 23. Bh3 d5 24. Bxd7 Nxd7 25. Qb4 Ne5 26. Rf1 g5 27. f4 Rf8 28. Qxf8+ Qxf8 29. fxe5 Qc5+ 30. Kg2 0-1

[Event "Helmond op"]
[Site "Helmond"]
[Date "2003.07.05"]
[Round "4"]
[White "Van der Heijden, Alan"]
[Black "Dekker, Bastiaan"]
[Result "1/2-1/2"]
[ECO "E67"]
[PlyCount "93"]
[EventDate "2003.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. d4 Nf6 5. Nf3 0-0 6. 0-0 Nbd7 7. b3 c6 8. Bb2 Qc7 9. Nc3 Re8 10. Qc2 e5 11. e3 exd4 12. exd4 Nf8 13. d5 cxd5 14. Nb5 Qd7 15. Ng5 dxc4 16. Qxc4 d5 17. Qb4 a5 18. Qc5 Ra6 19. Rad1 Ne6 20. Nxe6 fxe6 21. Bxf6 Bxf6 22. Nc7 Be7 23. Nxe8 Bxc5 24. Nf6+ Kg7 25. Nxd7 Bxd7 26. Bxd5 exd5 27. Rxd5 Bh3 28. Rxc5 Bxf1 29. Kxf1 Kh6 30. Rb5 a4 31. b4 Rc6 32. Rc5 Rd6 33. Ke2 Re6+ 34. Kd2 Rf6 35. f4 Rd6+ 36. Kc2 Re6 37. Re5 Rc6+ 38. Kb2 Rd6 39. Kc3 Rd1 40. b5 Rh1 41. Re2 a3 42. Kb3 Rb1+ 43. Kxa3 Rxb5 44. Ka4 Rb1 45. Ka5 b5 46. a3 Rb3 47. Kb6 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Blom, Gerben"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "48"]
[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 c5 3. Nf3 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nb3 Be7 7. 0-0 d5 8. e5 Nxe5 9. Bf4 Nxd3 10. Qxd3 0-0 11. Nc3 b6 12. Nd4 Bb7 13. Rfe1 Bd6 14. Bg5 Bxh2+ 15. Kxh2 Ng4+ 16. Kg3 Qxg5 17. Nf3 Qf5 18. Qxf5 exf5 19. Nh4 g6 20. Rh1 Nf6 21. Nf3 Ne4+ 22. Nxe4 fxe4 23. Nh2 d4 24. Ng4 f5 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Ernst, Sipke"]
[Black "Van der Heijden, Alan"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2240"]
[PlyCount "77"]
[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 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 g6 5. e3 Bg7 6. Be2 0-0 7. 0-0 Bg4 8. cxd5 Nxd5 9. h3 Bxf3 10. Bxf3 Nxc3 11. bxc3 Nd7 12. Rb1 Qc7 13. Qb3 b6 14. e4 e5 15. Be3 c5 16. d5 Nf6 17. g4 Ne8 18. Bg2 Nd6 19. f4 exf4 20. Bxf4 Qe7 21. e5 Bxe5 22. Rbe1 f6 23. g5 Qd7 24. gxf6 Bxf4 25. Rxf4 Rae8 26. Re6 Nf5 27. Rfe4 c4 28. Qb4 a5 29. Qxb6 Rb8 30. Qc6 Qa7+ 31. Kh2 Qf2 32. Qc7 Rb2 33. Rg4 Rb1 34. f7+ Rxf7 35. Re8+ Kg7 36. Qe5+ Rf6 37. Qc7+ Rf7 38. Qe5+ Rf6 39. Qc7+ 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Gervais, Victor"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2255"]
[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. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 0-0 9. Bd3 Qb6 10. Qe2 a5 11. 0-0 Bf5 12. Bxf5 gxf5 13. Ne5 e6 14. Na4 Qb4 15. Nc5 Nxe5 16. Bxe5 Ne4 17. Bxg7 Kxg7 18. a3 Qd2 19. Qb5 Nxc5 20. Rfd1 Qc2 21. dxc5 Qe4 22. Qxb7 Rab8 23. Qe7 Qe5 24. c6 Rxb2 25. c7 Rc2 26. Rac1 Qc3 27. Rxc2 Qxc2 28. Rd4 h6 29. g4 Rc8 30. g5 Qxc7 31. Qf6+ Kf8 32. g6 Re8 33. g7+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Kuipers, Eelco"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2165"]
[PlyCount "52"]
[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. a3 b6 3. b4 Bb7 4. Nc3 d6 5. d4 Nd7 6. Nf3 g6 7. Bb2 Bg7 8. Bc4 Nh6 9. 0-0 0-0 10. Ba2 Rc8 11. Qd2 Ng4 12. Rad1 cxd4 13. Nxd4 Nge5 14. Qe2 Nc6 15. Ncb5 Ba6 16. Nxc6 Rxc6 17. Bxg7 Kxg7 18. c4 Bxb5 19. cxb5 Rc7 20. f4 Qc8 21. Qb2+ f6 22. Rc1 Nb8 23. Be6 Rxc1 24. Bxc8 Rxf1+ 25. Kxf1 Rxc8 26. Qb3 Rc7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Van der Heijden, Alan"]
[Black "Marx, Gemma"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "41"]
[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 Nc6 4. Bc4 Qe7 5. Nc3 exf4 6. 0-0 Be6 7. Nd5 Qd8 8. d4 Nge7 9. Bxf4 Bxd5 10. exd5 Na5 11. Bb5+ c6 12. dxc6 bxc6 13. Bd3 Nd5 14. Bg5 Be7 15. Bxe7 Nxe7 16. Ng5 Qb6 17. Nxf7 Qxd4+ 18. Kh1 Rf8 19. Nxd6+ Qxd6 20. Qh5+ g6 21. Qxa5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "Van der Heijden, Alan"]
[Black "Meyles, Luuk"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "67"]
[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 g6 2. d4 d6 3. c4 Nf6 4. Nc3 Bg7 5. Nf3 0-0 6. Be2 c5 7. 0-0 a6 8. Be3 Nbd7 9. h3 Ne8 10. dxc5 Bxc3 11. bxc3 Qa5 12. Bh6 Ng7 13. cxd6 exd6 14. Qxd6 Qxc3 15. Bd2 Qf6 16. e5 Qxd6 17. exd6 Nc5 18. Be3 Nge6 19. Nd4 Ne4 20. Nxe6 Bxe6 21. c5 Nc3 22. Bf3 Nd5 23. Bd4 Rac8 24. Rab1 Nf4 25. Rxb7 Nd3 26. c6 Nf4 27. Re1 Rcd8 28. d7 Bxd7 29. cxd7 Ne6 30. Bb6 Rb8 31. Rxb8 Rxb8 32. Rxe6 fxe6 33. d8Q+ Rxd8 34. Bxd8 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Van der Heijden, Alan"]
[Black "Nobbenhuis, Stefan"]
[Result "1-0"]
[ECO "C32"]
[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 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 exd3 7. Bxd3 Nxd5 8. Qe2+ Ne7 9. 0-0-0 Nbc6 10. Nf3 Bg4 11. h3 Bxf3 12. Qxf3 Qd7 13. a3 Bd6 14. Qg3 0-0-0 15. Qxg7 Ng6 16. Qf6 Kb8 17. Rhe1 Be7 18. Qxf7 Rdf8 19. Qd5 Qc8 20. f5 Nh4 21. g4 Rd8 22. Qe6 Nf3 23. Qxc8+ Kxc8 24. Re4 Nxd2 25. Kxd2 Bg5+ 26. Ke1 Nd4 27. Ne2 Bh4+ 28. Kf1 Nf3 29. Re3 Ng5 30. Nf4 Rhe8 31. Rxe8 Rxe8 32. Kg2 Re3 33. Bc4 Rg3+ 34. Kh1 c6 35. Rd3 Nf3 36. Ne2 Rxh3+ 37. Kg2 Rh2+ 38. Kxf3 Rf2+ 39. Ke3 Rh2 40. Be6+ Kc7 41. Rd7+ Kb6 42. c3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Van der Heijden, Alan"]
[Black "Van Benthem, Arjen"]
[Result "0-1"]
[ECO "B38"]
[PlyCount "72"]
[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. Ne2 Nc6 3. c4 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. Be3 0-0 9. 0-0 Bd7 10. Qd2 Rc8 11. f3 Ne5 12. b3 a6 13. Rac1 Re8 14. h3 Nc6 15. f4 Nxd4 16. Bxd4 Bc6 17. Bf3 e5 18. fxe5 dxe5 19. Be3 Qxd2 20. Bxd2 Rcd8 21. Nd5 Nxd5 22. cxd5 Bb5 23. Rfd1 f5 24. Rc7 Rd7 25. Rdc1 Bf8 26. Rxd7 Bxd7 27. Rc7 Bc8 28. g4 f4 29. Kf2 Bd6 30. Rc4 Bd7 31. Bb4 Bxb4 32. Rxb4 b5 33. Be2 Rc8 34. a4 a5 35. Rxb5 Bxb5 36. axb5 Kf7 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "Van der Heijden, Alan"]
[Black "Van Vossen, Robbert"]
[Result "1-0"]
[ECO "B20"]
[PlyCount "53"]
[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. Ne2 e6 3. g3 Nc6 4. Bg2 Nf6 5. 0-0 d6 6. d4 cxd4 7. Nxd4 Be7 8. Nxc6 bxc6 9. e5 Nd5 10. c4 Ba6 11. Qa4 Nc7 12. Qxc6+ Kf8 13. exd6 Qxd6 14. Qxd6 Bxd6 15. Bxa8 Nxa8 16. Be3 Be5 17. Nd2 Bxb2 18. Rab1 Be5 19. Bc5+ Ke8 20. Bd4 Bc7 21. Bxg7 Rg8 22. Bd4 Nb6 23. Ne4 Bxc4 24. Rfc1 Bd3 25. Rxb6 Bxb6 26. Nf6+ Kd8 27. Bxb6+ 1-0

[Event "NED Open-ch16"]
[Site "Dieren"]
[Date "1985.08.06"]
[Round "8"]
[White "Van de Plassche, Bas"]
[Black "Van der Heijden, Alan"]
[Result "0-1"]
[ECO "D30"]
[PlyCount "60"]
[EventDate "1985.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 c5 3. Nf3 e6 4. 0-0 Nf6 5. c4 Be7 6. d4 0-0 7. cxd5 exd5 8. dxc5 Bxc5 9. Bg5 Nc6 10. Bxf6 Qxf6 11. Qxd5 Qxb2 12. Nbd2 Be7 13. Rab1 Qa3 14. Qb3 Qa5 15. Nc4 Qc7 16. Rfc1 Rb8 17. Nce5 Bf5 18. Rb2 Bf6 19. Rc5 Rfe8 20. Nxc6 bxc6 21. Rxf5 Bxb2 22. Qc4 Qd7 23. Bh3 g6 24. Rf4 Qd5 25. Qa4 Be5 26. Rb4 Rxb4 27. Qxb4 Rb8 28. Qe7 Bd6 29. Qxa7 Rb1+ 30. Kg2 Qd1 0-1

[Event "NED Open-ch16"]
[Site "Dieren"]
[Date "1985.08.05"]
[Round "7"]
[White "Van der Heijden, Alan"]
[Black "Van Dooren, Fritz"]
[Result "0-1"]
[ECO "A89"]
[PlyCount "42"]
[EventDate "1985.07.29"]
[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 f5 2. g3 Nf6 3. Bg2 g6 4. 0-0 Bg7 5. d4 0-0 6. c4 d6 7. Nc3 Nc6 8. d5 Na5 9. Nd2 c5 10. Qc2 a6 11. b3 Rb8 12. Bb2 b5 13. Rae1 bxc4 14. bxc4 e5 15. dxe6 Bxe6 16. Nd5 Rxb2 17. Qxb2 Nxd5 18. Qc1 Nc3 19. e4 Nxa2 20. Qa3 Nb4 21. exf5 Bxf5 0-1

[Event "NED Open-ch16"]
[Site "Dieren"]
[Date "1985.08.04"]
[Round "6"]
[White "Borm, Frans"]
[Black "Van der Heijden, Alan"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2385"]
[PlyCount "58"]
[EventDate "1985.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nb5 Bxd2+ 7. Qxd2 0-0 8. c3 Nbc6 9. f4 a6 10. Nd6 cxd4 11. cxd4 f6 12. 0-0-0 f5 13. Kb1 Qb6 14. Nf3 Bd7 15. Qc3 Nc8 16. Qc5 Qc7 17. Rc1 h6 18. Bd3 Be8 19. Rc3 Nb6 20. Qa3 Bh5 21. Rhc1 Bxf3 22. gxf3 Rfd8 23. Qb3 Rxd6 24. exd6 Qd8 25. Qa3 Nxd4 26. Rc7 Nb5 27. Bxb5 axb5 28. Qxa8 Qxa8 29. d7 Nxd7 1-0

[Event "NED Open-ch16"]
[Site "Dieren"]
[Date "1985.08.03"]
[Round "5"]
[White "Van der Heijden, Alan"]
[Black "Van de Berkmortel, Theo"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "57"]
[EventDate "1985.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 0-0 6. Nf3 d6 7. Be2 e6 8. 0-0 Re8 9. h3 exd5 10. exd5 Bf5 11. Bd3 Ne4 12. Nxe4 Bxe4 13. Bxe4 Rxe4 14. Qc2 Qe7 15. Bg5 f6 16. Rae1 Rxe1 17. Rxe1 Qd7 18. Bf4 Kf7 19. Re6 Bf8 20. Qc3 Qd8 21. g4 Be7 22. Qe3 Na6 23. g5 f5 24. Rf6+ Kg7 25. Qe6 Qe8 26. Ne5 dxe5 27. Bxe5 Bxf6 28. Qxf6+ Kg8 29. Qg7# 1-0

