[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.10"]
[Round "12"]
[White "Kootstra, Harm Jan"]
[Black "Nies, Levi"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "845"]
[BlackElo "1306"]
[PlyCount "74"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nc3 Nf6 4. e5 Ng8 5. Nf3 Ne7 6. 0-0 d5 7. Bb5+ Nbc6 8. d4 a6 9. Bxc6+ Nxc6 10. Qd2 cxd4 11. Nxd4 Nxe5 12. f4 Nc6 13. Nxc6 bxc6 14. Re1 Bb4 15. a3 Bxc3 16. Qxc3 0-0 17. Qxc6 Bd7 18. Qd6 Rc8 19. c3 Rc6 20. Qe5 Qc7 21. Qg5 h6 22. Qg4 Rc8 23. Be3 e5 24. fxe5 Bxg4 25. Bf4 Qb6+ 26. Be3 Qxb2 27. h3 Rxc3 28. Rab1 Rxe3 29. Rxb2 Rxe1+ 30. Kh2 Be6 31. Rf2 Rcc1 32. Kg3 Rxe5 33. Kh2 d4 34. Rd2 Rd5 35. Kg3 Rc3+ 36. Kf2 d3 37. Ke1 Rc2 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "11"]
[White "Baselmans, Luuk"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1497"]
[BlackElo "845"]
[PlyCount "39"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 Nxd4 6. Qxd4 Nf6 7. e5 Ng8 8. a3 Bg5 9. Bxg5 Qxg5 10. 0-0 Ne7 11. f4 Qf5 12. Nc3 0-0 13. Bd3 Nc6 14. Qe3 Qg4 15. Qe4 f5 16. exf6 g6 17. Bc4+ Kh8 18. f7 h6 19. Qe8 d5 20. Qxf8+ 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "9"]
[White "Droogh, Piet Hein"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "962"]
[BlackElo "845"]
[PlyCount "45"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7 4. Nc3 a6 5. Ba4 b5 6. Bb3 d6 7. Bd5 Bb7 8. d4 Rb8 9. Be3 Qf6 10. Ng5 Nh6 11. Bb3 exd4 12. Nd5 Qe5 13. Bf4 Be7 14. Bxe5 dxe5 15. Nf3 0-0 16. 0-0 Bc5 17. Qd2 Bc8 18. c3 Be6 19. cxd4 Bxd4 20. Nf6+ gxf6 21. Qxh6 Bxb3 22. axb3 Rb6 23. Qxf6 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "10"]
[White "Kootstra, Harm Jan"]
[Black "Koedijk, Klaas Jan"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "845"]
[BlackElo "790"]
[PlyCount "107"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. d5 Nce7 6. Bxd7+ Qxd7 7. 0-0 Nf6 8. Re1 g6 9. Bg5 Bg7 10. c4 0-0 11. Nc3 c6 12. Qa4 Rfe8 13. Rad1 cxd5 14. Qxd7 Nxd7 15. cxd5 Nb6 16. Nb5 Rac8 17. Nxd6 f6 18. Nxe8 Rxe8 19. Bc1 f5 20. exf5 Nxf5 21. d6 Nd7 22. Bf4 Re6 23. Nxe5 Bxe5 24. Bxe5 Kf7 25. Bf4 Nd4 26. Rxe6 Nxe6 27. Bg3 Kf6 28. f3 h5 29. h3 g5 30. h4 a6 31. Kf2 Kf5 32. Ke3 Nf4 33. Bxf4 gxf4+ 34. Kd3 Ke5 35. Kc4 b6 36. Kb4 Ke6 37. a4 Nf8 38. a5 b5 39. Kc5 Nd7+ 40. Kc6 Ne5+ 41. Kc7 Nd7 42. Re1+ Ne5 43. d7 Kf5 44. Rxe5+ Kxe5 45. d8R Ke6 46. Kc6 Ke7 47. Rd6 Ke8 48. Rd7 Kf8 49. Ra7 Ke8 50. Kd6 Kf8 51. Ke6 Kg8 52. Kf6 Kh8 53. Kg6 b4 54. Ra8# 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.08"]
[Round "8"]
[White "Kootstra, Harm Jan"]
[Black "Verbrugge, Luc"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "845"]
[BlackElo "656"]
[PlyCount "109"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 a6 5. Bxc6+ bxc6 6. dxe5 dxe5 7. Qxd8+ Kxd8 8. 0-0 Nf6 9. Nc3 Bc5 10. Nxe5 Re8 11. Bf4 Bd7 12. Nxd7 Kxd7 13. e5 Ng4 14. Rad1+ Kc8 15. Rde1 Rb8 16. b3 Bb4 17. Bd2 Nxe5 18. Ne4 Bxd2 19. Nxd2 Rb5 20. Nc4 f6 21. Nxe5 fxe5 22. Re3 Kd8 23. Rfe1 Ra5 24. a4 Rc5 25. c4 Kc8 26. f4 Kb7 27. Rc3 a5 28. fxe5 Re6 29. Rce3 Kc8 30. Kf2 Kd7 31. Kf3 g5 32. Kg4 h6 33. Kf5 Ke7 34. Kg4 Kf7 35. h4 gxh4 36. Kxh4 Kg7 37. Kg4 h5+ 38. Kg5 Rg6+ 39. Kxh5 Rxg2 40. Kh4 Kf7 41. Kh5 Ke6 42. Kh6 Kf7 43. Re4 Rg6+ 44. Kh7 Rg5 45. e6+ Kf6 46. Rf4+ Rcf5 47. Rxf5+ Kxf5 48. e7 Rh5+ 49. Kg7 Rg5+ 50. Kf7 c5 51. e8Q Rg6 52. Ke7 Re6+ 53. Rxe6 Kf4 54. Rf6+ Kg4 55. Qg8+ 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "5"]
[White "De Haas, Lars"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1246"]
[BlackElo "845"]
[PlyCount "67"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bb4 4. a3 Bc5 5. c3 Bb6 6. d4 f6 7. b4 Nge7 8. 0-0 d5 9. exd5 Nxd5 10. dxe5 Nf4 11. Bxf4 fxe5 12. Bg5 Qxd1 13. Rxd1 Bg4 14. Nbd2 h6 15. Bh4 g5 16. Bg3 0-0-0 17. Re1 e4 18. Rxe4 Bf5 19. Be6+ Bxe6 20. Rxe6 g4 21. Nd4 Nxd4 22. cxd4 Bxd4 23. Rc1 Rde8 24. Rxc7+ Kd8 25. Rxe8+ Rxe8 26. h3 Bb6 27. Rc1 gxh3 28. gxh3 h5 29. Rd1 Kc8 30. Nc4 Rg8 31. Nxb6+ axb6 32. Rc1+ Kd8 33. Kh2 Rf8 34. Rc7 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "6"]
[White "Kootstra, Harm Jan"]
[Black "Hematyar, Fardin"]
[Result "1/2-1/2"]
[ECO "C70"]
[WhiteElo "845"]
[BlackElo "871"]
[PlyCount "50"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc4 Bc5 5. c3 b5 6. Bb3 Nf6 7. d4 exd4 8. cxd4 Bb4+ 9. Nc3 Bxc3+ 10. bxc3 0-0 11. e5 Re8 12. 0-0 Ng4 13. Bg5 Ne7 14. d5 d6 15. e6 fxe6 16. dxe6 a5 17. a4 c6 18. Ba2 d5 19. axb5 Bxe6 20. Re1 Bf7 21. bxc6 Qd6 22. Qd4 Bh5 23. c4 Nxc6 24. Qxd5+ Qxd5 25. cxd5 Nb4 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "7"]
[White "Wiemann, Daniel"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1348"]
[BlackElo "845"]
[PlyCount "115"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 c6 6. Nc3 Nf6 7. Bc4 Be7 8. Be3 0-0 9. 0-0-0 b5 10. Bb3 c5 11. Qd3 c4 12. Bxc4 bxc4 13. Qxc4 Ng4 14. h3 Nxe3 15. fxe3 Bg5 16. Rd3 Qb6 17. Nd5 Ba6 18. Nxb6 Bxc4 19. Nxc4 Rfe8 20. h4 Be7 21. Rxd7 Bc5 22. Rhd1 a5 23. R7d5 Rac8 24. Nd6 Bxd6 25. Rxd6 h6 26. R1d4 Kh7 27. c4 a4 28. Kd2 Re5 29. Kc3 Rb8 30. R6d5 Re6 31. Rd6 Re5 32. Ra6 a3 33. Rxa3 Rc8 34. b4 f5 35. exf5 Rxe3+ 36. Rd3 Re5 37. g4 Re4 38. Rd4 Re3+ 39. Kb2 Re2+ 40. Kc3 Re3+ 41. Rd3 Re4 42. c5 Rxg4 43. Rb3 Rxh4 44. Rd4 Rh3+ 45. Kc4 Rh5 46. Rf4 Rh2 47. a4 Rc2+ 48. Rc3 Ra2 49. a5 Rd2 50. f6 gxf6 51. Rxf6 Rcd8 52. a6 R2d4+ 53. Kb5 Rb8+ 54. Rb6 Rg8 55. Ra3 Rd7 56. Ra5 Rc7 57. Rb7 Rxb7+ 58. axb7 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "4"]
[White "Kootstra, Harm Jan"]
[Black "Kroon, Dominique"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "845"]
[BlackElo "738"]
[PlyCount "55"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d5 2. f3 d4 3. Ne2 e5 4. d3 Nc6 5. c3 Nf6 6. cxd4 exd4 7. Bg5 Be7 8. Qa4 0-0 9. h3 Qd6 10. a3 Bd7 11. f4 Ne5 12. fxe5 Qb6 13. Qc2 Nh5 14. Bxe7 Rfe8 15. Bc5 Qa5+ 16. b4 Qa6 17. Bxd4 Ba4 18. Qc3 Rad8 19. Nd2 Qg6 20. Nf3 Ng3 21. Nxg3 Qxg3+ 22. Bf2 Qf4 23. Qd2 Qxd2+ 24. Kxd2 Bb5 25. Nd4 b6 26. Nxb5 Rxe5 27. Nxa7 Rd6 28. Ke3 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "2"]
[White "Kootstra, Harm Jan"]
[Black "Kroon, Gerbrich"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "845"]
[BlackElo "671"]
[PlyCount "69"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Bb5+ Bd7 5. Nc3 Bxb5 6. Nxb5 a6 7. Nbd4 e6 8. 0-0 Bc5 9. Re1 Ne7 10. c3 0-0 11. d3 h6 12. Bf4 Nd7 13. b4 Bb6 14. Bd6 Re8 15. Qa4 Nc8 16. Bf4 e5 17. Nxe5 Nxe5 18. Rxe5 Rxe5 19. Bxe5 f6 20. Bf4 Bxd4 21. cxd4 b5 22. Qb3 Qb6 23. Qxd5+ Kh8 24. Qxa8 Qe6 25. Qe4 Qg4 26. h3 Qd7 27. Re1 Nd6 28. Bxd6 Qxd6 29. Rc1 Qd7 30. Qc6 Qf5 31. Qc8+ Kh7 32. Qxf5+ Kg8 33. Qg6 Kf8 34. Rc7 Kg8 35. Rc8# 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "3"]
[White "Vitharana, Annelies"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "1213"]
[BlackElo "845"]
[PlyCount "59"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 Bg4 9. h3 Bh5 10. Qb3 Qe7 11. Qxb7 Rb8 12. Qxc6+ Kf8 13. Bb3 Rb6 14. Qa8+ Qe8 15. Qxe8+ Kxe8 16. g4 Bg6 17. Rc1 c6 18. 0-0 Nf6 19. Rfe1 Kf8 20. Ba4 h6 21. Bxc6 Kg8 22. e5 Rxc6 23. Rxc6 Nd5 24. Rc8+ Kh7 25. Rxh8+ Kxh8 26. exd6 Nb6 27. a4 a5 28. Re8+ Kh7 29. Rb8 Nd7 30. Rb7 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.05"]
[Round "1"]
[White "Warmerdam, Ivo"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "1343"]
[BlackElo "845"]
[PlyCount "49"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 b6 4. d5 Na5 5. Nc3 d6 6. Bf4 e5 7. dxe6 fxe6 8. Bb5+ Ke7 9. 0-0 Nf6 10. e5 Ne8 11. Bg5+ Nf6 12. exf6+ gxf6 13. Bh4 Bh6 14. Ne4 Rf8 15. Qe2 Bd7 16. Bxd7 Kxd7 17. Rad1 d5 18. Rfe1 Nc4 19. Qxc4 Kc6 20. Qa4+ Kb7 21. Nc3 Qc7 22. Rxe6 Rad8 23. Nb5 Qd7 24. Qxa7+ Kc8 25. Qa8# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "7"]
[White "De Haas, Lars"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1248"]
[BlackElo "785"]
[PlyCount "71"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. d3 Nd4 6. Bg5 Nxf3+ 7. Qxf3 h6 8. Bh4 g5 9. Bg3 d6 10. Nd5 Bg4 11. Qxf6 Qxf6 12. Nxf6+ Ke7 13. Nxg4 Raf8 14. c3 Bb6 15. Ne3 Kd8 16. Nd5 Kc8 17. h4 g4 18. h5 a6 19. Bh4 Kb8 20. Bf6 Rfg8 21. Ne7 Rg6 22. hxg6 fxg6 23. Bh4 g5 24. Bg3 Re8 25. Ng6 Rg8 26. Rxh6 c5 27. Bxg8 Bd8 28. Nf8 Ka7 29. Rxd6 Be7 30. Rd7 Bxf8 31. Bd5 Kb6 32. Rxb7+ Ka5 33. Bxe5 Bd6 34. Bxd6 g3 35. Bc7+ Ka4 36. Bc6# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "6"]
[White "Kootstra, Harm Jan"]
[Black "Motamarri, Kritin"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "785"]
[BlackElo "1231"]
[PlyCount "134"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Bxc6 dxc6 6. d3 h6 7. h3 0-0 8. 0-0 Re8 9. a3 Be6 10. b4 Bd4 11. Bb2 Nh5 12. Nxe5 Bxe5 13. Qxh5 Qf6 14. Rab1 Bd7 15. Nd1 Qf4 16. g3 Qf6 17. Kh2 Bxb2 18. Nxb2 Re5 19. Qe2 Qe6 20. Qg4 Qxg4 21. hxg4 Bxg4 22. Nc4 Rh5+ 23. Kg2 Bh3+ 24. Kf3 Bxf1 25. Rxf1 b5 26. Na5 c5 27. bxc5 Rxc5 28. Nb7 Rxc2 29. Rb1 Rb8 30. Rxb5 Ra2 31. Nd6 Rxb5 32. Nxb5 c6 33. Nxa7 Rxa3 34. Nxc6 Rxd3+ 35. Ke2 Rc3 36. Ne7+ Kf8 37. Nf5 Rc7 38. f3 Rc2+ 39. Ke3 f6 40. g4 Rc3+ 41. Kf4 g5+ 42. Kg3 Kf7 43. Kf2 Kg6 44. Ng3 Rc2+ 45. Ke3 Rg2 46. Nh1 h5 47. gxh5+ Kxh5 48. Nf2 Kh4 49. Ke2 Kg3 50. Ke3 Rxf2 51. Kd4 Rxf3 52. Kd5 f5 53. e5 Re3 54. Kd6 f4 55. e6 f3 56. Kd7 f2 57. e7 f1Q 58. e8Q Rxe8 59. Kxe8 Qf6 60. Kd7 Kf4 61. Kc7 Qe6 62. Kb7 Qd6 63. Ka7 Qb4 64. Ka6 Ke5 65. Ka7 Kd6 66. Ka6 Kc7 67. Ka7 Qa4# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "8"]
[White "Kootstra, Harm Jan"]
[Black "Van Randtwijk, Mick"]
[Result "0-1"]
[ECO "C49"]
[WhiteElo "785"]
[BlackElo "972"]
[PlyCount "146"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. 0-0 0-0 6. d3 a6 7. Bxc6 dxc6 8. Bg5 Bg4 9. h3 Bh5 10. a3 Bxc3 11. bxc3 h6 12. Bh4 b5 13. Rb1 a5 14. Qe2 Rb8 15. Rb2 c5 16. Rfb1 Qd6 17. a4 b4 18. c4 c6 19. Kh1 Nd7 20. Qe3 f5 21. exf5 Rxf5 22. Nd2 Qd4 23. Kg1 Qxh4 24. Rf1 Qd4 25. Qxd4 cxd4 26. g4 Bxg4 27. hxg4 Rg5 28. f3 h5 29. Ne4 Rg6 30. Kf2 hxg4 31. fxg4 Rf8+ 32. Ke2 Rxg4 33. Rxf8+ Kxf8 34. Rb1 Rg2+ 35. Kf3 Rxc2 36. Ra1 Rb2 37. Nf2 b3 38. Nd1 Rd2 39. Rb1 Rxd3+ 40. Ke2 e4 41. Nf2 Re3+ 42. Kd2 Nc5 43. Rb2 Nxa4 44. Rb1 b2 45. Nd1 Rd3+ 46. Kc2 Rh3 47. Nxb2 Nxb2 48. Rxb2 Rh2+ 49. Kc1 Rh3 50. Rb8+ Kf7 51. Rc8 Rc3+ 52. Kb2 Rxc4 53. Rc7+ Kg6 54. Re7 e3 55. Kb3 Rc5 56. Rd7 Rd5 57. Rxd5 cxd5 58. Kc2 Kf6 59. Kd3 a4 60. Kc2 a3 61. Kb1 a2+ 62. Kxa2 e2 63. Kb3 e1Q 64. Ka4 Qb1 65. Ka3 g5 66. Ka4 Qb2 67. Ka5 Qb3 68. Ka6 Qb4 69. Ka7 Qb5 70. Ka8 Ke6 71. Ka7 Kd7 72. Ka8 Kc8 73. Ka7 Qb7# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "9"]
[White "Platenburg, Jarno"]
[Black "Kootstra, Harm Jan"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "659"]
[BlackElo "785"]
[PlyCount "66"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 Bb4 5. a3 Bxc3+ 6. bxc3 0-0 7. Be2 h6 8. 0-0 d6 9. c4 b6 10. Be3 Ba6 11. Nh4 Qd7 12. h3 Qe7 13. Bg4 Nxe4 14. dxe4 Qxh4 15. g3 Qf6 16. h4 Bxc4 17. Re1 g6 18. Bxh6 Nd4 19. Bxf8 Rxf8 20. c3 Nb3 21. Rb1 Nc5 22. h5 Nd3 23. Re3 Qxf2+ 24. Kh1 Qxe3 25. hxg6 Nf2+ 26. Kh2 Nxd1 27. Rxd1 Be2 28. Bxe2 Qxe2+ 29. Kh3 Qxd1 30. gxf7+ Rxf7 31. g4 Rg7 32. c4 Qxg4+ 33. Kh2 Qg2# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "1"]
[White "Bekedam, Tyro"]
[Black "Kootstra, Harm Jan"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1019"]
[BlackElo "785"]
[PlyCount "89"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bb4 5. d3 Bxc3+ 6. bxc3 0-0 7. 0-0 d6 8. h3 h6 9. Be3 b6 10. Bb5 Bd7 11. Qd2 Kh7 12. Bc4 Na5 13. Ba6 c5 14. Qe2 Bc8 15. Bxc8 Rxc8 16. Bd2 Nc6 17. Rad1 d5 18. Bc1 d4 19. cxd4 Nxd4 20. Nxd4 cxd4 21. Ba3 Re8 22. Rc1 a5 23. Qd2 Nh5 24. Qe2 Nf4 25. Qg4 Rc6 26. Kh1 Rg6 27. Qf3 Qg5 28. Rg1 Qh4 29. Rcf1 Rc8 30. Rc1 Rcc6 31. Bf8 Rcf6 32. Be7 Re6 33. Bxh4 Nh5 34. Qxh5 f6 35. Qf5 Re7 36. Rb1 Rb7 37. Qc8 Rf7 38. Rxb6 h5 39. Qf5 Rf8 40. Qxh5+ Rh6 41. Qf5+ g6 42. Qd7+ Kg8 43. Rb7 Rf7 44. Qxf7+ Kh8 45. Qg7# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "5"]
[White "De Jong, Ruurd"]
[Black "Kootstra, Harm Jan"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "794"]
[BlackElo "785"]
[PlyCount "144"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Nc6 4. d3 Bc5 5. Bg5 0-0 6. Nf3 d6 7. h3 h6 8. Bh4 a6 9. 0-0 b5 10. Bd5 Qe7 11. Bxc6 Rb8 12. Nd5 Qe6 13. d4 exd4 14. Nxd4 Bxd4 15. Qxd4 Bb7 16. Nxc7 Qe7 17. Bxf6 gxf6 18. Nxa6 Bxa6 19. Rae1 b4 20. c4 bxc3 21. e5 Bxf1 22. Kxf1 fxe5 23. Qg4+ Qg5 24. Qxg5+ hxg5 25. bxc3 f6 26. Bd5+ Kg7 27. g3 Rh8 28. Kg2 Rbc8 29. Re3 f5 30. c4 f4 31. gxf4 exf4 32. Re7+ Kg6 33. Be4+ Kf6 34. Rd7 Rxc4 35. Bd5 Rd4 36. Rxd6+ Ke7 37. Re6+ Kd7 38. Re5 Kd6 39. Rxg5 Rxd5 40. Rg6+ Kc5 41. Rf6 Rg8+ 42. Kf3 Rd3+ 43. Kxf4 Rxh3 44. a4 Ra8 45. Rf5+ Kb4 46. Kg4 Ra3 47. Rf4+ Kb3 48. Rf3+ Kxa4 49. Rf4+ Kb3 50. Rf3+ Kc2 51. Rf6 Rg8+ 52. Kf4 Kd2 53. Re6 Rf8+ 54. Ke5 Rxf2 55. Rd6+ Rd3 56. Rg6 Re2+ 57. Kf6 Rf3+ 58. Kg7 Re7+ 59. Kg8 Ra7 60. Rg2+ Ke3 61. Rc2 Rf2 62. Rc3+ Kd4 63. Rc8 Ke5 64. Re8+ Kd6 65. Rd8+ Rd7 66. Rb8 Ke6 67. Rb6+ Kf5 68. Rb8 Kg6 69. Kh8 Rfd2 70. Rb6+ R2d6 71. Rb8 Rd8+ 72. Rxd8 Rxd8# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "3"]
[White "De Ridder, Yulian"]
[Black "Kootstra, Harm Jan"]
[Result "0-1"]
[ECO "C49"]
[WhiteElo "949"]
[BlackElo "785"]
[PlyCount "48"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. Bxc6 dxc6 6. Nxe5 Qd4 7. Nd3 Bxc3 8. dxc3 Qxe4+ 9. Qe2 Qxe2+ 10. Kxe2 0-0 11. Bg5 Re8+ 12. Kd2 Ne4+ 13. Kd1 Nxg5 14. Kd2 Bf5 15. f4 Bxd3 16. cxd3 Ne6 17. f5 Nc5 18. b4 Na4 19. Rab1 Re5 20. Rhf1 g6 21. fxg6 fxg6 22. d4 Rf5 23. Rxf5 gxf5 24. Ke3 Nxc3 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "2"]
[White "Kootstra, Harm Jan"]
[Black "Van der Ende, Jesse"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "785"]
[BlackElo "923"]
[PlyCount "46"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Bxc6 dxc6 6. Nxe5 Qd4 7. 0-0 Qxe5 8. d3 Bd6 9. g3 h6 10. Bf4 Qc5 11. Be3 Qa5 12. a3 Bh3 13. Re1 Ng4 14. b4 Qa6 15. Bd4 0-0 16. f3 Ne5 17. Be3 Ng6 18. a4 Bxb4 19. Bd2 Qb6+ 20. Kh1 Qf2 21. Rg1 Bc5 22. Ne2 Qxf3+ 23. Rg2 Bxg2# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "4"]
[White "Kootstra, Harm Jan"]
[Black "Zijdemans, Zowie"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "785"]
[BlackElo "1003"]
[PlyCount "106"]
[EventDate "2011.04.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. Nf3 Nbd7 4. Bb5 c6 5. Bc4 e5 6. d3 Qc7 7. Be3 Be7 8. 0-0 h6 9. h3 Nf8 10. a3 g5 11. Nh2 Ng6 12. Ne2 g4 13. hxg4 Nxg4 14. Ng3 Nxh2 15. Kxh2 Bh4 16. Nh5 Bd7 17. Kg1 Qc8 18. Re1 Bg4 19. Ng7+ Kf8 20. Qd2 Kxg7 21. Kf1 b5 22. Rec1 bxc4 23. d4 exd4 24. Bxd4+ f6 25. f3 Bg5 26. Be3 Bxe3 27. Qxe3 Bd7 28. Ke2 Qa6 29. Kd2 d5 30. exd5 Rhe8 31. Qd4 cxd5 32. Qxd5 Rad8 33. Re1 Bc6 34. Rxe8 Rxd5+ 35. Kc1 Bxe8 36. Kb1 Qb6 37. Ka2 Qd6 38. g4 Rd1 39. Rxd1 Qxd1 40. c3 Bf7 41. f4 Qxg4 42. f5 Qxf5 43. a4 Qa5 44. Ka3 f5 45. b4 Qc7 46. a5 Be8 47. b5 Qc5+ 48. Kb2 Qxb5+ 49. Kc2 Qb3+ 50. Kc1 Qa2 51. a6 Nf4 52. Kd1 Ba4+ 53. Ke1 Qe2# 0-1

