[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.10"]
[Round "13"]
[White "De Haas, Lars"]
[Black "Janse, Sebastiaan"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1246"]
[BlackElo "1090"]
[PlyCount "83"]
[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 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. 0-0 0-0 11. Re1 Nb6 12. d5 Nxd5 13. Ne4 Nb6 14. Bb3 Bg4 15. h3 Qxd1 16. Raxd1 Bxf3 17. gxf3 Rad8 18. Rxd8 Rxd8 19. Kg2 h6 20. h4 Nd7 21. Ba4 Nf6 22. Nxf6+ gxf6 23. Re2 Kf8 24. Rc2 Ke7 25. Bxc6 bxc6 26. Rxc6 Kd7 27. Rxf6 Rb8 28. Rxf7+ Kd6 29. Rf6+ Kd7 30. Rxh6 Rxb2 31. Ra6 c5 32. Rxa7+ Kd6 33. h5 c4 34. Ra3 Kd5 35. Ra8 c3 36. h6 c2 37. Rd8+ Kc6 38. h7 Kb7 39. h8Q c1Q 40. Rb8+ Ka7 41. Ra8+ Kb6 42. Qb8+ 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.10"]
[Round "12"]
[White "Verheyen, Olivier"]
[Black "De Haas, Lars"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1357"]
[BlackElo "1246"]
[PlyCount "51"]
[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 Nf6 4. Nc3 Bc5 5. d3 h6 6. Be3 Bb6 7. a3 d6 8. Qe2 Bg4 9. h3 Bh5 10. g4 Bg6 11. 0-0-0 Qd7 12. Nh4 Bh7 13. f4 exf4 14. Bxf4 g5 15. Qf3 gxf4 16. Qxf4 Qe7 17. Rhf1 Bd4 18. Nd5 Nxd5 19. exd5 Be3+ 20. Qxe3 Qxe3+ 21. Kb1 0-0-0 22. dxc6 bxc6 23. Ba6+ Kb8 24. Rf3 Qe7 25. d4 Qxh4 26. Rb3+ 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "10"]
[White "Bourgonjen, Ruben"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1354"]
[BlackElo "1246"]
[PlyCount "63"]
[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. d4 d5 2. Nf3 Nc6 3. g3 Bf5 4. Bg2 Nf6 5. 0-0 e6 6. b3 Bb4 7. Bb2 0-0 8. c4 Be7 9. Nc3 Qd7 10. Ne5 Nxe5 11. dxe5 Ng4 12. cxd5 exd5 13. Bxd5 c6 14. Bg2 Nxe5 15. Rc1 Qe6 16. Qd4 Bf6 17. Qb4 b6 18. Ne4 c5 19. Qa4 Rad8 20. Nxf6+ Qxf6 21. Qxa7 Rd7 22. Qa4 Nf3+ 23. Bxf3 Qxb2 24. Rfd1 Rxd1+ 25. Rxd1 Qc2 26. e4 Bg6 27. Rd6 Qc3 28. Bg2 Qe1+ 29. Bf1 Bxe4 30. Qb5 Ba8 31. Rxb6 Qe4 32. a4 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "11"]
[White "De Haas, Lars"]
[Black "Kouwenhoven, Derk"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1246"]
[BlackElo "1270"]
[PlyCount "79"]
[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. d4 Nf6 2. Nf3 g6 3. Bf4 d6 4. Nc3 Bg7 5. e3 0-0 6. Bc4 Nbd7 7. 0-0 Nb6 8. Bb3 Bd7 9. Qe2 Re8 10. Rad1 Nh5 11. Bg3 Rc8 12. Bh4 Nf6 13. e4 Nh5 14. h3 Bf6 15. Bxf6 Nxf6 16. e5 Nh5 17. Ng5 e6 18. Nf3 d5 19. Rfe1 c5 20. dxc5 Rxc5 21. Qe3 Rc7 22. a4 Nc4 23. Bxc4 Rxc4 24. b3 Rc8 25. Rd2 Qa5 26. Rd3 b5 27. axb5 Bxb5 28. Nxb5 Qxb5 29. Rc1 Rc7 30. Nd4 Qb6 31. Rc3 Rec8 32. Rxc7 Rxc7 33. g4 Ng7 34. Qd3 Qb4 35. c3 Qb6 36. b4 Rc4 37. Ra1 Ne8 38. Ra5 a6 39. Ne2 Nc7 40. Nd4 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.08"]
[Round "8"]
[White "Kroon, Joppe"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1241"]
[BlackElo "1246"]
[PlyCount "53"]
[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 d6 4. dxe5 dxe5 5. Qxd8+ Nxd8 6. Nxe5 Nf6 7. Nc3 Bb4 8. f3 Nc6 9. Nxc6 bxc6 10. Bc4 0-0 11. Be3 Bxc3+ 12. bxc3 Re8 13. 0-0 Kh8 14. Bxf7 Re7 15. Bb3 Ba6 16. Rfd1 Re5 17. Rd2 h6 18. Rad1 Ree8 19. Bd4 Nh5 20. Bf7 Nf4 21. Bxe8 Rxe8 22. Bxa7 Ne2+ 23. Kf2 Nxc3 24. Re1 Re7 25. Bc5 Rf7 26. Rd8+ Kh7 27. e5 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 "De Haas, Lars"]
[Black "Maria Oproae, Alex Maria"]
[Result "1/2-1/2"]
[ECO "D61"]
[WhiteElo "1246"]
[BlackElo "1423"]
[PlyCount "57"]
[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. d4 d5 2. c4 e6 3. Nc3 Nf6 4. a3 Be7 5. Nf3 0-0 6. Bg5 Nbd7 7. Qc2 c6 8. e3 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. Rd1 h6 12. Bh4 Nd5 13. Bxe7 Qxe7 14. Nxd5 exd5 15. 0-0 f5 16. Rfe1 a6 17. Bxf5 Qf7 18. Bxd7 Qxd7 19. Ne5 Qf5 20. Qxf5 Rxf5 21. g4 Rf6 22. f4 Bc8 23. h3 Rb8 24. Rc1 Rb6 25. b4 h5 26. g5 Rd6 27. h4 Bf5 28. Rc3 a5 29. Ra1 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "7"]
[White "Lu, Ting Ting"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C59"]
[WhiteElo "1120"]
[BlackElo "1246"]
[PlyCount "60"]
[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 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 Bc5 10. c3 Nb7 11. Nxe5 Qb6 12. 0-0 0-0 13. d4 Bd6 14. Nc4 Qc7 15. Nxd6 Nxd6 16. Bf4 Re8 17. c4 Qe7 18. Bd3 Ba6 19. c5 Nc4 20. b3 Nb2 21. Qd2 Nxd3 22. Bd6 Qe6 23. Nc3 Qg4 24. Rfd1 Ne4 25. f3 Nxd2 26. fxg4 Ne4 27. Nxe4 Rxe4 28. h3 Rxd4 29. Be5 Re4 30. Bd6 Rae8 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "2"]
[White "Baselmans, Luuk"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1497"]
[BlackElo "1246"]
[PlyCount "169"]
[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 d6 4. d5 Nce7 5. Nc3 Bd7 6. Be3 c6 7. Bc4 Nf6 8. 0-0 Qc7 9. h3 Rd8 10. Bb3 Bc8 11. Bg5 Rg8 12. Be3 h6 13. Ne1 g5 14. f3 Nh5 15. Kh2 Nf4 16. Nd3 Neg6 17. dxc6 bxc6 18. Nxf4 Nxf4 19. Ba4 Be7 20. Bxf4 gxf4 21. Qe2 Rg3 22. Nd5 Qb7 23. Qc4 Bd7 24. Nc3 Kf8 25. Ne2 Rg6 26. Bb3 Be6 27. Qc3 Kg8 28. Rad1 Kh7 29. Rg1 Rdg8 30. Bxe6 fxe6 31. g3 fxg3+ 32. Rxg3 Rxg3 33. Nxg3 Bh4 34. Rg1 Qg7 35. Ne2 Qf7 36. Rxg8 Qxg8 37. Qxc6 Qf8 38. Qc3 Qb8 39. Qb3 Qxb3 40. axb3 d5 41. exd5 exd5 42. Kg2 Kg6 43. f4 e4 44. Nc3 e3 45. Kf3 d4 46. Nb5 Bf6 47. c3 dxc3 48. bxc3 a6 49. Nd4 Be7 50. Kxe3 Ba3 51. c4 Bc5 52. Ke4 Kf6 53. f5 a5 54. Nc6 Bb6 55. Ne5 Ke7 56. Ng4 h5 57. Ne3 Kf7 58. Nd5 Bc5 59. Kf4 h4 60. Kg5 Bf2 61. c5 Bxc5 62. Kxh4 Bf2+ 63. Kg4 Bd4 64. h4 Bg7 65. h5 Bh6 66. Nb6 Bd2 67. Nc4 Bc3 68. Nd6+ Kg7 69. Ne4 Be5 70. Kg5 Bb2 71. h6+ Kf7 72. f6 Bc1+ 73. Kf5 Bxh6 74. Nd6+ Kf8 75. Nc4 Bc1 76. Nxa5 Bb2 77. Nc4 Bc3 78. Ke6 Bxf6 79. Kxf6 Ke8 80. Ke6 Kd8 81. Kd6 Kc8 82. Kc6 Kb8 83. Kb6 Ka8 84. b4 Kb8 85. b5 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "3"]
[White "De Haas, Lars"]
[Black "Waardenburg, Marlinde"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1246"]
[BlackElo "877"]
[PlyCount "65"]
[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. d4 d5 2. c4 Nf6 3. Nc3 Nc6 4. Nf3 Bg4 5. cxd5 Nxd5 6. e4 Nf6 7. Be3 e5 8. Bb5 a6 9. Bxc6+ bxc6 10. h3 Bh5 11. Qa4 Qd6 12. Nxe5 Be7 13. Nxc6 0-0 14. e5 Qe6 15. exf6 Bxf6 16. d5 Qe8 17. 0-0 Qc8 18. Ne4 Bxb2 19. Ne7+ Kh8 20. Nxc8 Rfxc8 21. Rab1 Be5 22. Rbc1 Be2 23. Rfe1 Bb5 24. Qb4 Rab8 25. Qe7 Re8 26. Qxf7 Bb2 27. Rc2 Bd3 28. Rxb2 Bxe4 29. Rxb8 Rxb8 30. Bd4 Rg8 31. Rxe4 h6 32. Rh4 a5 33. Rxh6# 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "4"]
[White "Schelleman, Iris"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1105"]
[BlackElo "1246"]
[PlyCount "93"]
[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 Nf6 4. d4 exd4 5. 0-0 d6 6. Nxd4 Be7 7. Nc3 0-0 8. Bf4 Nxe4 9. Nxe4 d5 10. Bxc7 Qxc7 11. Bxd5 Rd8 12. c4 Bf5 13. Nxf5 Bb4 14. a3 Bf8 15. Qg4 g6 16. Nf6+ Kh8 17. Qh4 h5 18. Qg5 Qe5 19. g4 Bg7 20. Nh6 Qxf6 21. Qxf6 Bxf6 22. Nxf7+ Kg7 23. Nxd8 Rxd8 24. Bxc6 bxc6 25. gxh5 gxh5 26. Rab1 h4 27. Kg2 Rd3 28. f3 Bd4 29. Rfd1 Rxd1 30. Rxd1 Bxb2 31. Rd7+ Kf6 32. Rxa7 Ke5 33. Rh7 Bxa3 34. Rxh4 Be7 35. Re4+ Kd6 36. Kg3 Bf6 37. h4 Kc5 38. h5 Kb4 39. Re6 Bd4 40. Rxc6 Be5+ 41. Kg4 Kc3 42. h6 Kd4 43. h7 Kd3 44. Rc8 Kd4 45. h8Q Bxh8 46. Rxh8 Kxc4 47. Rd8 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.05"]
[Round "1"]
[White "De Haas, Lars"]
[Black "Calje, Ming Dao"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1246"]
[BlackElo "762"]
[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. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. 0-0 dxc3 7. Nxc3 0-0 8. Bg5 h6 9. Bh4 d6 10. Nd5 Be6 11. Nxf6+ gxf6 12. Qc2 Bxc4 13. Qxc4 Re8 14. Rad1 Re7 15. Bxf6 Rxe4 16. Qxe4 Qxf6 17. Rd5 Qxb2 18. h4 Nb4 19. Rf5 Qxa2 20. Qxb7 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.11"]
[Round "8"]
[White "Burger, Sem"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C45"]
[PlyCount "108"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Nf6 6. Nxc6 bxc6 7. Bxc5 d6 8. Be3 Nxe4 9. Bd3 Nf6 10. 0-0 0-0 11. Qf3 Bb7 12. Bg5 h6 13. Bxf6 Qxf6 14. Qxf6 gxf6 15. Nd2 Kh8 16. Kh1 Rg8 17. f3 Rg7 18. Ne4 f5 19. Ng3 f4 20. Nh5 Rg5 21. Nxf4 c5 22. Rad1 Rb8 23. Be4 Ba6 24. Bd3 c4 25. Be2 Rxb2 26. c3 Rxa2 27. Ra1 Rga5 28. Rxa2 Rxa2 29. Re1 Rc2 30. Nd5 c5 31. Nc7 Bb7 32. Nb5 d5 33. Bd1 Rc1 34. Nd6 Bc6 35. Rg1 Kg7 36. Nf5+ Kf6 37. Nxh6 Rxc3 38. Ng4+ Kg7 39. Ne5 Bb5 40. f4 f6 41. Ng4 d4 42. Nf2 f5 43. Re1 Re3 44. Rxe3 dxe3 45. Nh3 c3 46. Ng1 e2 47. Nxe2 Bxe2 48. Bc2 c4 49. Kg1 Bd3 50. Bd1 c2 51. Bxc2 Bxc2 52. Kf1 Bd3+ 53. Ke1 c3 54. Kd1 c2+ 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.11"]
[Round "7"]
[White "De Haas, Lars"]
[Black "Nies, Levi"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "75"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Be2 e6 4. Nc3 d5 5. exd5 exd5 6. 0-0 Nf6 7. Re1 Be7 8. d4 0-0 9. Be3 b6 10. h3 Bb7 11. a3 Re8 12. Qd3 Qd7 13. b3 a6 14. a4 Rac8 15. Na2 Ne4 16. Nd2 Nf6 17. c3 h6 18. Rac1 Bd6 19. Bf3 Be7 20. Be2 Na5 21. b4 c4 22. Qc2 Nc6 23. Kh1 b5 24. a5 Bd6 25. Kg1 Ne7 26. f3 Nf5 27. Bf2 Ng3 28. Bf1 Bc7 29. Bxg3 Bxg3 30. Rxe8+ Rxe8 31. f4 Bxf4 32. Rd1 Ne4 33. Nxe4 Rxe4 34. Nc1 Qe7 35. Ne2 Be3+ 36. Kh1 Bc8 37. Ng3 Rf4 38. Re1 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.11"]
[Round "9"]
[White "De Haas, Lars"]
[Black "Sealy, Alec"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "66"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Nf3 Nc6 6. a3 Bxc3+ 7. bxc3 Qb6 8. Be3 Nge7 9. g4 0-0 10. a4 Bd7 11. Ra2 Rac8 12. a5 Qc7 13. c4 cxd4 14. Bxd4 Nxd4 15. Qxd4 dxc4 16. Bg2 Rfd8 17. 0-0 c3 18. Qe4 Bc6 19. Qf4 Ng6 20. Qe3 Bxf3 21. Bxf3 Qxe5 22. Qxe5 Nxe5 23. Bxb7 Rb8 24. a6 Nxg4 25. Ra3 Rd7 26. Rxc3 g6 27. h3 Nf6 28. Rc1 Nd5 29. Rb3 Nf4 30. c4 Ne2+ 31. Kf1 Nxc1 32. Rc3 Nd3 33. f3 Nc5 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.10"]
[Round "6"]
[White "Algra, Sake"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C59"]
[PlyCount "94"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 Bc5 9. c3 Bb6 10. b4 Nb7 11. Ba3 Bf5 12. 0-0 0-0 13. b5 c5 14. Bf3 e4 15. Be2 Re8 16. Bc4 Nd6 17. Be2 Qd7 18. c4 h6 19. Nh3 Bxh3 20. gxh3 Qxh3 21. Kh1 Nxc4 22. Bxc4 Ng4 23. Bxf7+ Kh8 24. Qxg4 Qxg4 25. Bxe8 Qh3 26. Rg1 Bc7 27. Rg2 Be5 28. Bc6 Rb8 29. Nc3 Bxc3 30. dxc3 Qxc3 31. Rag1 Qxa3 32. Rxg7 Qf3+ 33. R1g2 Rd8 34. h3 Qxh3+ 35. Rh2 Rd1+ 36. Rg1 Rxg1+ 37. Kxg1 Qg4+ 38. Rg2 Qe6 39. a4 c4 40. Rg3 h5 41. Re3 Qg4+ 42. Kf1 Qd1+ 43. Re1 Qxa4 44. b6 Qxc6 45. bxa7 Qa6 46. Rxe4 Qxa7 47. Rxc4 Qa6 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.10"]
[Round "4"]
[White "De Haas, Lars"]
[Black "Loutragotis, Paraskevas Pantelei"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "40"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 d6 6. h3 h6 7. Be3 Bb6 8. Qd2 Be6 9. Bb3 Qd7 10. Nd5 Bxd5 11. Bxd5 Nxd5 12. exd5 Ne7 13. c4 f5 14. Qe2 f4 15. Bd2 Nf5 16. Bxf4 0-0 17. Be3 Bxe3 18. fxe3 Ng3 19. Qf2 Nxh1 20. 0-0-0 Nxf2 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.10"]
[Round "5"]
[White "Klapwijk, Stijn"]
[Black "De Haas, Lars"]
[Result "1/2-1/2"]
[ECO "D52"]
[PlyCount "72"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Bd6 7. Bd3 b6 8. 0-0 h6 9. Bh4 Qc7 10. e4 dxe4 11. Bxe4 Bb7 12. h3 0-0-0 13. a3 g5 14. Bg3 Bxg3 15. fxg3 Qxg3 16. d5 Nc5 17. Qe2 exd5 18. cxd5 Ba6 19. Bf5+ Nfd7 20. Qe7 Bxf1 21. Rxf1 Rhe8 22. Qxf7 Rf8 23. Qg6 Rf6 24. Bxd7+ Nxd7 25. Qc2 Ne5 26. Ne4 Nxf3+ 27. Rxf3 Qe1+ 28. Kh2 Rxf3 29. gxf3 c5 30. b4 Rxd5 31. bxc5 bxc5 32. Qc4 Rd2+ 33. Nxd2 Qxd2+ 34. Kg3 Qf4+ 35. Qxf4 gxf4+ 36. Kxf4 Kd7 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.09"]
[Round "1"]
[White "De Haas, Lars"]
[Black "Halfhide, Sebastian"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "64"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. dxc5 Bxc5 7. Bb5 Nc6 8. Be3 Bxe3 9. fxe3 Qe7 10. Bxc6 bxc6 11. Qd4 Rb8 12. Rb1 Ba6 13. Kf2 0-0 14. b4 f6 15. exf6 Rxf6 16. Kg1 e5 17. Qg4 Rbf8 18. b5 Bxb5 19. Rxb5 Rg6 20. Qh3 cxb5 21. Nxd5 Qd6 22. e4 Nb6 23. Ne3 Nc4 24. Nd5 Qc5+ 25. Kf1 Ne3+ 26. Nxe3 Qxe3 27. Rg1 Rxf3+ 28. Qxf3 Rf6 29. Qxf6 gxf6 30. g3 Qf3+ 31. Ke1 Qxe4+ 32. Kd2 Qd4+ 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.09"]
[Round "3"]
[White "De Haas, Lars"]
[Black "Salomons, Quinten"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "157"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 Nc6 6. a3 a5 7. e3 0-0 8. c5 h6 9. Bf4 b6 10. Bb5 Bd7 11. Qa4 Nb8 12. Bxd7 Qxd7 13. Qxd7 Nbxd7 14. Bxc7 bxc5 15. 0-0 c4 16. Rfb1 a4 17. Ne5 Nxe5 18. Bxe5 Rfd8 19. f3 Bd6 20. Bxd6 Rxd6 21. Rd1 Rb6 22. Rab1 Rb3 23. Kf2 g5 24. h3 Kg7 25. e4 Kg6 26. g4 Ra7 27. Re1 Ra8 28. exd5 Nxd5 29. Nxd5 exd5 30. Re2 Rab8 31. Ke1 Rxa3 32. Kf2 Rab3 33. Ra1 Rxb2 34. Rxa4 Rxe2+ 35. Kxe2 Rb3 36. Ra6+ f6 37. Ra5 c3 38. Rxd5 c2 39. Rc5 Rb2 40. Kd2 c1Q+ 41. Kxc1 Rf2 42. d5 Re2 43. Rc6 Re8 44. Rd6 Kf7 45. Rd7+ Re7 46. Rd8 Rc7+ 47. Kd2 Ke7 48. Rh8 Rd7 49. Rxh6 Rxd5+ 50. Ke3 Rd8 51. Ke4 Kf7 52. h4 Re8+ 53. Kd3 Kg7 54. hxg5 fxg5 55. Rd6 Kf7 56. Kd4 Re1 57. Ra6 Kg7 58. Kd5 Kf7 59. Ra7+ Kf6 60. Ra6+ Kg7 61. Re6 Rf1 62. Ke4 Kf7 63. Rd6 Re1+ 64. Kf5 Rf1 65. Rd3 Ra1 66. Rd7+ Ke8 67. Rd5 Rf1 68. Rd3 Ra1 69. Kxg5 Ra5+ 70. Kf4 Ra4+ 71. Ke5 Kf7 72. f4 Ra5+ 73. Rd5 Ra6 74. Rd7+ Ke8 75. Rd6 Ra5+ 76. Rd5 Ra6 77. g5 Kf7 78. Rd7+ Ke8 79. Rd6 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2013.05.09"]
[Round "2"]
[White "Kroetkov, Ivan"]
[Black "De Haas, Lars"]
[Result "1/2-1/2"]
[ECO "D07"]
[PlyCount "61"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. e3 Bb4+ 5. Nc3 Nf6 6. a3 Bxc3+ 7. bxc3 Ne4 8. Bb2 a6 9. Rc1 Rb8 10. cxd5 exd5 11. c4 0-0 12. cxd5 Qxd5 13. Bc4 Qh5 14. d5 Na5 15. Qd4 Nf6 16. Ba2 Rd8 17. Qc3 b6 18. h3 Bb7 19. Rd1 Qg6 20. Nh4 Qg5 21. g3 c6 22. d6 c5 23. Rg1 Ne4 24. Qe5 Qxe5 25. Bxe5 Nc6 26. Ba1 Nxd6 27. Nf3 b5 28. Ne5 Rbc8 29. Nd3 Ne7 30. Ke2 Nef5 31. Nxc5 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.19"]
[Round "8"]
[White "De Haas, Lars"]
[Black "Koeman, Cas"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "62"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Bg7 7. Nf3 0-0 8. Bg2 d6 9. 0-0 Bg4 10. Rb1 Ne5 11. h3 Nxf3+ 12. Bxf3 Bxh3 13. g4 Bxf1 14. Qxf1 Nd7 15. Bf4 Ne5 16. Be2 Qc7 17. Nd5 Qxc2 18. Nxe7+ Kh8 19. Bxe5 Bxe5 20. Bd3 Qc5 21. a3 Bg7 22. b4 Qg5 23. Nd5 Qxg4+ 24. Kh1 Be5 25. f4 Bg7 26. Re1 Qh4+ 27. Kg1 Bd4+ 28. Kg2 g5 29. fxg5 Qxg5+ 30. Kh2 Rg8 31. Qh3 Rg6 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.19"]
[Round "7"]
[White "De Haas, Lars"]
[Black "Van Nimwegen, Martijn"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "69"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ng4 7. cxd4 Bb4+ 8. Nc3 0-0 9. h3 Nh6 10. Bxh6 gxh6 11. 0-0 Kh8 12. Nd5 d6 13. Qc2 Rg8 14. Nf6 Rg7 15. Kh1 dxe5 16. dxe5 Nxe5 17. Nh5 Nxf3 18. Nxg7 Kxg7 19. a3 Bd6 20. Qc3+ Ne5 21. f4 f6 22. fxe5 Bxe5 23. Qb3 c6 24. Rad1 Qc7 25. Be6 Qe7 26. Bxc8 Rxc8 27. Rfe1 b5 28. Rd2 Qc5 29. Rd7+ Kg6 30. Qf7+ Kf5 31. Qxh7+ Ke6 32. Qf7+ Kf5 33. Rf1+ Ke4 34. Qg6+ Ke3 35. Qd3# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.19"]
[Round "9"]
[White "Koster, Tobias"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "98"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. dxe5 dxe5 5. Qxd8+ Nxd8 6. Nxe5 f6 7. Nf3 f5 8. Nc3 fxe4 9. Nxe4 Bf5 10. Bd3 g6 11. Bf4 Ne6 12. Be5 Bg7 13. Bxg7 Nxg7 14. 0-0-0 0-0-0 15. Nfg5 Rd7 16. Nc5 Re7 17. Bxf5+ Nxf5 18. Rhe1 Rxe1 19. Rxe1 Nf6 20. h3 h6 21. Nf7 Rf8 22. Ne5 b6 23. Ne6 Re8 24. Kd1 Rxe6 25. Nxg6 Rd6+ 26. Kc1 Nh5 27. g4 Rxg6 28. gxf5 Rf6 29. Re3 Ng7 30. Re6 Nxe6 31. fxe6 Rxe6 32. Kd2 Kd7 33. c3 Ke7 34. Kd3 Kf6 35. b4 Kg5 36. a4 Kh4 37. Kd4 Kxh3 38. Kd5 Rd6+ 39. Ke4 Rf6 40. f4 Kg4 41. Kd5 h5 42. f5 Kxf5 43. c4 h4 44. c5 bxc5 45. bxc5 h3 46. a5 h2 47. c6 h1Q+ 48. Kc5 Rxc6+ 49. Kd4 Qe4# 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.18"]
[Round "5"]
[White "De Haas, Lars"]
[Black "Wagenvoorde, Guido"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "64"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 Nc6 6. Bc4 Bc5 7. Bf4 d6 8. e5 d5 9. Bb5 Nge7 10. Bg5 0-0 11. Bxc6 bxc6 12. Qd2 Qc7 13. 0-0 Ng6 14. Na4 Bb6 15. Rab1 Nxe5 16. Bf4 Nxf3+ 17. gxf3 Qe7 18. Kh1 e5 19. Bg3 Qf6 20. f4 exf4 21. Qxf4 Qf5 22. Rbe1 Qxf4 23. Bxf4 Bh3 24. Nxb6 axb6 25. Rg1 Rfe8 26. Rxe8+ Rxe8 27. Bh6 g6 28. Be3 Bf5 29. f3 Rxe3 30. Rf1 Bh3 31. Rc1 Rxf3 32. Kg1 g5 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.18"]
[Round "4"]
[White "Remans, Nathan"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "82"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. h3 d6 6. d3 h6 7. a3 Be6 8. Nd5 Bxd5 9. exd5 Na5 10. Bb5+ c6 11. dxc6 Nxc6 12. Be3 Qa5+ 13. b4 Bxb4+ 14. axb4 Qxb4+ 15. Qd2 Qxb5 16. c4 Qb4 17. Qxb4 Nxb4 18. Rb1 Nxd3+ 19. Kd2 Nc5 20. Bxc5 dxc5 21. Rxb7 0-0-0+ 22. Kc3 Kxb7 23. Rb1+ Kc8 24. Nxe5 Ne4+ 25. Kc2 Rd2+ 26. Kc1 Rhd8 27. Nf3 Rd1+ 28. Kc2 Rxb1 29. Kxb1 Nxf2 30. Ne5 Rd1+ 31. Kc2 Rg1 32. Nxf7 Rxg2 33. Kb3 Nxh3 34. Nd6+ Kd7 35. Ne4 Kc6 36. Ka4 Rg4 37. Nd2 Rd4 38. Nb3 Rxc4+ 39. Ka5 Rc3 40. Ka4 Rxb3 41. Kxb3 g5 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.18"]
[Round "6"]
[White "Van Hoorn, Geert"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "89"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Bg4 5. h3 Bh5 6. g4 Bg6 7. f5 Nf6 8. Nc3 d5 9. Nxd5 Nxd5 10. Bxd5 f6 11. Bxc6+ bxc6 12. fxg6 hxg6 13. d3 Be7 14. Be3 f5 15. Nxe5 Bh4+ 16. Bf2 Bxf2+ 17. Kxf2 Qd4+ 18. Kg2 Qxe5 19. exf5 Qd5+ 20. Qf3 Qxf3+ 21. Kxf3 gxf5 22. Rae1+ Kd7 23. gxf5 Rhf8 24. Kf4 g6 25. Re5 gxf5 26. Rxf5 Rh8 27. Kg4 Rab8 28. b3 Rb4+ 29. Rf4 Rb5 30. h4 Rg8+ 31. Kh3 Re5 32. Rf3 Ke6 33. Rh2 Rg1 34. Rg3 Rf1 35. Rg6+ Kd5 36. Rg5 Rfe1 37. Rxe5+ Rxe5 38. Kg4 Re8 39. h5 Rg8+ 40. Kf5 Kd6 41. h6 Ke7 42. h7 Rh8 43. Kg6 Kf8 44. Rf2+ Ke7 45. Kg7 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.17"]
[Round "3"]
[White "De Haas, Lars"]
[Black "Schelleman, Niels"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "105"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[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. 0-0 0-0 11. Qc2 Bg4 12. Qe4 Nf6 13. Qf4 Bxf3 14. Nxf3 Qd7 15. Rad1 Rfe8 16. Ne5 Nxe5 17. dxe5 Qg4 18. Qxg4 Nxg4 19. e6 fxe6 20. Rfe1 h6 21. Bxe6+ Rxe6 22. Rxe6 Rf8 23. f3 Nf6 24. Re7 Rc8 25. h4 b6 26. g4 a5 27. g5 hxg5 28. hxg5 Nh5 29. Rdd7 c5 30. Kh2 Rf8 31. Kh3 Rf4 32. Rb7 Rb4 33. b3 Kf8 34. Rec7 Kg8 35. g6 Nf4+ 36. Kg4 Nxg6+ 37. Kg5 Nf8 38. Rxg7+ Kh8 39. Rgc7 Rd4 40. Rc8 Kg8 41. Rbb8 Rd5+ 42. Kf6 Rd6+ 43. Ke5 Re6+ 44. Kf5 Kg7 45. Rxf8 Rd6 46. Rg8+ Kf7 47. Rh8 Rf6+ 48. Kg5 Rg6+ 49. Kh5 Re6 50. Rb7+ Kf6 51. Rh6+ Kf5 52. Rxb6 Re5 53. Rbf6# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.17"]
[Round "1"]
[White "De Haas, Lars"]
[Black "Verhoef, Pieter"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "88"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Bg5 Be7 7. Qe2 0-0 8. Nc3 Be6 9. g3 Nbd7 10. Bg2 h6 11. Bf4 c6 12. h3 d5 13. Nd4 Qb6 14. Nxe6 Qxb2 15. 0-0 fxe6 16. Qxe6+ Kh8 17. Qxe7 Qxc3 18. Qe2 Rae8 19. Qd1 Nb6 20. Bd2 Qc5 21. Rb1 Qd6 22. d4 Qd7 23. Bb4 Rf7 24. Qf3 Ne4 25. Qg4 Qxg4 26. hxg4 Nc4 27. Rbd1 a5 28. Be1 a4 29. f3 Ne3 30. fxe4 Rxf1+ 31. Bxf1 Nxd1 32. Be2 Rxe4 33. Kf1 Ne3+ 34. Kf2 Nxc2 35. Ba5 Nxd4 36. Bb6 Rxe2+ 37. Kf1 Rd2 38. Ke1 Nf3+ 39. Kf1 Rxa2 40. Bf2 Rxf2+ 41. Kxf2 a3 42. Kxf3 a2 43. Kf4 a1Q 44. Kf5 Qf6# 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2012.05.17"]
[Round "2"]
[White "Mensing, Andrew"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "E01"]
[PlyCount "69"]
[EventDate "2012.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nc6 4. g3 Nf6 5. Bg2 Bb4+ 6. Bd2 Qe7 7. a3 Bxd2+ 8. Nbxd2 dxc4 9. Nxc4 0-0 10. 0-0 Rd8 11. e3 Rb8 12. b4 b5 13. Nce5 Nxe5 14. Nxe5 Bd7 15. Bc6 Rb6 16. Rc1 Rdb8 17. Bxd7 Nxd7 18. Nc6 Qd6 19. Nxb8 Nxb8 20. Rc3 h6 21. Qc2 c6 22. Rd1 a6 23. e4 Qc7 24. d5 exd5 25. exd5 Kh8 26. d6 Qd7 27. Re3 Rb7 28. Rde1 g6 29. Re8+ Kh7 30. Qc3 g5 31. Qh8+ Kg6 32. Rg8+ Kh5 33. f3 Qxd6 34. Kg2 Qd2+ 35. Kh3 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 "8"]
[White "De Haas, Lars"]
[Black "Van Roon, Sjoerd"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "1248"]
[BlackElo "1258"]
[PlyCount "65"]
[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 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 d5 7. Nfg5+ Ke8 8. Qf3 Qe7 9. Qh5+ g6 10. Qf3 dxe4 11. Nxe4 Nd4 12. Qd3 Bf5 13. c3 Ne6 14. 0-0 Rd8 15. Qc2 Nc5 16. d3 Nxd3 17. Bg5 Qe6 18. Bxd8 Bxe4 19. Qa4+ Bc6 20. Qd1 Qd5 21. f3 Kxd8 22. c4 Bc5+ 23. Kh1 Nf2+ 24. Rxf2 Qxd1+ 25. Rxd1+ Ke7 26. Re2 Kf6 27. Rb1 Rd8 28. b4 Bd4 29. b5 Bd7 30. Rd2 Bf5 31. Rbd1 Rd6 32. g4 Bc5 33. gxf5 1/2-1/2

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "6"]
[White "Mestrom, Wolf"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "833"]
[BlackElo "1248"]
[PlyCount "65"]
[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. d4 d5 2. Nf3 Nc6 3. g3 e5 4. dxe5 Bf5 5. a3 f6 6. exf6 Nxf6 7. Bg2 Be4 8. 0-0 Bc5 9. b3 0-0 10. Bb2 Qd7 11. Nbd2 Rae8 12. Nxe4 Nxe4 13. b4 Bb6 14. c4 d4 15. c5 Nxc5 16. bxc5 Bxc5 17. Qb3+ Kh8 18. Qc2 b6 19. Ng5 g6 20. Rad1 Rd8 21. e3 Kg8 22. Qc4+ Kh8 23. Qe6 Qxe6 24. Nxe6 Rfe8 25. Nxd8 Nxd8 26. exd4 Bf8 27. d5+ Bg7 28. Bxg7+ Kxg7 29. Rfe1 Rf8 30. Re7+ Kf6 31. Rde1 Nb7 32. R1e6+ Kg5 33. h4+ 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.23"]
[Round "9"]
[White "Van Eek, Jeffrey"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C29"]
[WhiteElo "1042"]
[BlackElo "1248"]
[PlyCount "49"]
[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. Nc3 Nf6 3. f4 exf4 4. e5 Qe7 5. Qe2 Ng8 6. Nf3 Nc6 7. d4 f6 8. Nd5 Qd8 9. exf6+ Kf7 10. fxg7 Bxg7 11. c3 Nf6 12. Nxf6 Bxf6 13. Bxf4 Re8 14. Be3 Re4 15. 0-0-0 Qe7 16. Rd3 b6 17. Qf2 Ba6 18. Ng5+ Kg7 19. Nxe4 Qxe4 20. Rd1 Bh4 21. g3 Qxh1 22. Bxa6 Qd5 23. gxh4 Re8 24. Rg1+ Kh8 25. Qf6# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "4"]
[White "De Haas, Lars"]
[Black "De Ridder, Yulian"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1248"]
[BlackElo "949"]
[PlyCount "27"]
[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 d6 6. Bg5 0-0 7. Nd5 Bg4 8. Nxf6+ gxf6 9. Bh6 Re8 10. h3 Be6 11. Nd2 d5 12. Bxd5 Bxd5 13. Qg4+ Kh8 14. Qg7# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "2"]
[White "De Haas, Lars"]
[Black "Kroon, Joppe"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "1248"]
[BlackElo "889"]
[PlyCount "56"]
[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 c5 2. Nf3 Nc6 3. Bc4 e6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. Bg5 Be7 8. Nc3 h6 9. Bh4 d5 10. exd5 cxd5 11. Bb5+ Bd7 12. Qe2 d4 13. Bxd7+ Qxd7 14. 0-0-0 0-0 15. Bxf6 Bxf6 16. Ne4 Qe7 17. Qg4 Bg5+ 18. f4 Bf6 19. Rhe1 Rfc8 20. Qh3 Qd8 21. g4 Be7 22. Rg1 Qd5 23. Nc3 Qc5 24. b4 Qxb4 25. Ne2 Qc4 26. Nxd4 Bc5 27. c3 Qxa2 28. Rd2 Qa1+ 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "5"]
[White "Motamarri, Kritin"]
[Black "De Haas, Lars"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1231"]
[BlackElo "1248"]
[PlyCount "80"]
[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. d3 h6 5. Nc3 d6 6. h3 Be6 7. Bb3 Nd4 8. Be3 Nxb3 9. cxb3 d5 10. Nxe5 d4 11. Bf4 dxc3 12. bxc3 Bd6 13. d4 Bxe5 14. Bxe5 Nxe4 15. Bxg7 Rg8 16. Bxh6 Rxg2 17. Qf3 Rg6 18. Qxe4 Rxh6 19. 0-0-0 Qg5+ 20. Kb1 0-0-0 21. Rhg1 Qf5 22. Qxf5 Bxf5+ 23. Kb2 Rxh3 24. Rg7 Rh2 25. Rxf7 Bg4 26. Rg1 Bd7 27. Rgg7 b6 28. Ka3 Rhh8 29. f4 Rhf8 30. Re7 Rxf4 31. b4 Rf3 32. Kb3 Rf6 33. Re5 Be6+ 34. Ka3 Rd5 35. Re7 Rxe5 36. dxe5 Rg6 37. Re8+ Kd7 38. Ra8 Rg2 39. Ka4 Rxa2+ 40. Kb5 c6# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "3"]
[White "Schoemaker, Nour Eddinne"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "816"]
[BlackElo "1248"]
[PlyCount "82"]
[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 a6 5. Bxc6 dxc6 6. a3 Bg4 7. d3 Bc5 8. Bg5 Bd4 9. Bxf6 Qxf6 10. 0-0 0-0 11. h3 Bxf3 12. Qxf3 Qxf3 13. gxf3 Rfe8 14. Nd1 Re6 15. c3 Rg6+ 16. Kh2 Bc5 17. b4 Bd6 18. Ne3 Rd8 19. Rg1 Be7 20. Nf5 Bf8 21. Rxg6 fxg6 22. Ne3 Rxd3 23. Rc1 Rd2 24. Ng4 Bd6 25. a4 c5 26. bxc5 Bxc5 27. Nxe5 Rxf2+ 28. Kg3 Ra2 29. Rd1 Be7 30. Rd7 Bf8 31. Rd8 h5 32. Nd7 h4+ 33. Kxh4 g5+ 34. Kxg5 Rg2+ 35. Kf4 Rd2 36. Rxf8+ Kh7 37. Ne5 Rd6 38. Nf7 Rf6+ 39. Kg5 Rg6+ 40. Kh5 Rh6+ 41. Nxh6 gxh6 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2011.04.22"]
[Round "1"]
[White "Van Leeuwen, Louis"]
[Black "De Haas, Lars"]
[Result "1-0"]
[ECO "C46"]
[WhiteElo "906"]
[BlackElo "1248"]
[PlyCount "65"]
[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 Bc5 4. Nxe5 Bxf2+ 5. Kxf2 Nxe5 6. Qh5 Qf6+ 7. Ke1 g6 8. Qd1 Nh6 9. d4 Neg4 10. Qe2 0-0 11. Bxh6 Nxh6 12. Nd5 Qe6 13. Nxc7 Qc6 14. Nxa8 Re8 15. Qd2 Rxe4+ 16. Be2 Nf5 17. Kf1 Ne3+ 18. Kf2 Qf6+ 19. Kg1 Qg5 20. Bf3 Re6 21. Nc7 Rf6 22. h4 Qf4 23. Nd5 Nxd5 24. Qxf4 Rxf4 25. Bxd5 Rxd4 26. c4 d6 27. Rf1 Kg7 28. Rxf7+ Kh8 29. Rf8+ Kg7 30. Rxc8 Rd1+ 31. Kh2 Rd2 32. Rc7+ Kf6 33. Rf1+ 1-0

