[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.29"]
[Round "9"]
[White "Hartevelt, Leendert"]
[Black "Van Doren, Bas"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1777"]
[BlackElo "1755"]
[PlyCount "60"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. b3 f5 2. Bb2 d6 3. e3 e5 4. Ne2 Nf6 5. Nbc3 Be7 6. g3 0-0 7. Bg2 Qe8 8. d4 Nc6 9. Nd5 Bd8 10. 0-0 Qh5 11. Nxf6+ Bxf6 12. c4 Nd8 13. Nc3 Qh6 14. Nb5 Ne6 15. d5 Ng5 16. Nxc7 Rb8 17. Qe2 f4 18. exf4 exf4 19. Bxf6 Rxf6 20. gxf4 Nh3+ 21. Kh1 Nxf4 22. Qe8+ Rf8 23. Qe3 Bg4 24. Ne6 Rbe8 25. Rae1 Rf6 26. Rg1 Qh4 27. Qg3 Qxg3 28. fxg3 Nd3 29. Be4 Nf2+ 30. Kg2 Bh3# 0-1

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.28"]
[Round "8"]
[White "Bosma, Jan"]
[Black "Hartevelt, Leendert"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1684"]
[BlackElo "1777"]
[PlyCount "89"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. Nd5 Bc5 6. d3 0-0 7. Nf3 h6 8. 0-0 d6 9. a3 a5 10. e3 Nxd5 11. cxd5 Ne7 12. d4 exd4 13. Nxd4 Ng6 14. b3 Re8 15. Bb2 Ne5 16. Qd2 Bd7 17. Qc3 f6 18. Kh1 Qc8 19. b4 Bb6 20. f4 Nf7 21. e4 Bh3 22. Bxh3 Qxh3 23. Ne6 axb4 24. axb4 Rxa1 25. Rxa1 Qg4 26. Qd3 h5 27. Kg2 h4 28. h3 Qxg3+ 29. Qxg3 hxg3 30. Kxg3 c6 31. Rc1 Nd8 32. f5 Kf7 33. Kf3 g6 34. Nxd8+ Bxd8 35. dxc6 bxc6 36. fxg6+ Kxg6 37. Rxc6 Be7 38. b5 Rb8 39. b6 Kf7 40. Kf4 Ke6 41. Bd4 Bd8 42. h4 f5 43. e5 Be7 44. exd6 Bxd6+ 45. Rxd6+ 1-0

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.27"]
[Round "7"]
[White "Hartevelt, Leendert"]
[Black "De Boer, Sipke"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1777"]
[BlackElo "1363"]
[PlyCount "75"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 g6 2. c4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Nf3 0-0 6. Be2 Bg4 7. Be3 Nbd7 8. 0-0 c5 9. d5 Nb6 10. Nd2 Bxe2 11. Qxe2 Qd7 12. h3 e6 13. g4 exd5 14. cxd5 h5 15. f3 Qe7 16. Rf2 Nbd7 17. Rg2 a6 18. Nf1 b5 19. Ng3 h4 20. Nf1 Nh7 21. Nd2 g5 22. Rf1 Bxc3 23. bxc3 f6 24. f4 Rab8 25. fxg5 fxg5 26. Rf5 a5 27. Rgf2 b4 28. cxb4 axb4 29. Nc4 Nb6 30. Qc2 Nxc4 31. Qxc4 Rbe8 32. e5 Rxf5 33. Rxf5 dxe5 34. d6+ Qe6 35. d7 Qxc4 36. dxe8Q+ Kg7 37. Qxe5+ Kg6 38. Qd5 1-0

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.26"]
[Round "5"]
[White "Hartevelt, Leendert"]
[Black "Hofstra, Tijmen"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1777"]
[BlackElo "1558"]
[PlyCount "108"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Nc3 Qb6 6. Na4 Qa5+ 7. c3 Bxd4 8. Qxd4 Nf6 9. f3 Nc6 10. Qd1 d5 11. b4 Qc7 12. Bg5 dxe4 13. Bxf6 gxf6 14. fxe4 a6 15. Qf3 Ke7 16. Be2 Ne5 17. Qe3 Bd7 18. Nb6 Rad8 19. Nxd7 Rxd7 20. 0-0 Rd6 21. Rac1 Qb6 22. Qxb6 Rxb6 23. a3 Rd8 24. c4 Rbd6 25. c5 Rd2 26. Bf3 Ra2 27. Ra1 Rdd2 28. Rxa2 Rxa2 29. b5 Rxa3 30. Rb1 Kd7 31. Be2 Kc7 32. Rb2 axb5 33. Bxb5 Rc3 34. Rf2 Rxc5 35. Bf1 Nd7 36. Rf4 Kd6 37. Rh4 Nf8 38. Rh6 Ke7 39. Rh3 Rc8 40. Rb3 Rb8 41. Kf2 Nd7 42. Rh3 b5 43. Rxh7 Ne5 44. Rh3 b4 45. Rb3 Kd6 46. Be2 Kc5 47. Ke3 Rd8 48. Rb1 Nc4+ 49. Kf2 Rd4 50. h4 Rxe4 51. h5 Ne5 52. Rc1+ Kd4 53. h6 Rh4 54. Rd1+ Kc3 0-1

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.26"]
[Round "6"]
[White "Kalle, Erwin"]
[Black "Hartevelt, Leendert"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2039"]
[BlackElo "1777"]
[PlyCount "69"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Be7 7. Bd3 c6 8. Nge2 Na6 9. 0-0 0-0 10. b3 Bf6 11. Be3 g6 12. Rc1 Bg7 13. Qd2 Nc7 14. Bg5 f6 15. Bh4 d5 16. c5 Nd7 17. f4 Rf7 18. f5 Nf8 19. Rf3 Bxf5 20. Bxf5 gxf5 21. Rxf5 Ng6 22. Bg3 Ne6 23. Rcf1 Qd7 24. h4 Ne7 25. R5f3 Re8 26. Bd6 Nc8 27. Bh2 Nf8 28. Ng3 Ng6 29. Nf5 Ref8 30. Ne2 Nge7 31. Neg3 Nxf5 32. Nxf5 Qd8 33. h5 Re8 34. Nxg7 Kxg7 35. Be5 1-0

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.25"]
[Round "4"]
[White "Nieczyporowski, Miki"]
[Black "Hartevelt, Leendert"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "1616"]
[BlackElo "1777"]
[PlyCount "90"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 c5 7. Nf3 Bg4 8. d5 g6 9. h3 Bxf3 10. Qxf3 Bg7 11. Bf4 0-0 12. Nc3 N8d7 13. Qe3 Rc8 14. Be2 Qe8 15. 0-0-0 Nb8 16. Bh6 Na4 17. Bxg7 Kxg7 18. h4 Nxc3 19. bxc3 h6 20. h5 g5 21. Bd3 f5 22. e6 Rf6 23. Qe5 f4 24. Qe4 Qh8 25. g3 Kf8 26. gxf4 Rxf4 27. Rdf1 Qxc3+ 28. Kd1 Qa1+ 29. Ke2 Qb2+ 30. Bc2 Qd4 31. Rxf4+ gxf4 32. Rf1 Qxe4+ 33. Bxe4 Kg7 34. Rxf4 Rf8 35. Rg4+ Kf6 36. Ke3 Ke5 37. Rg6 Rh8 38. Rg7 Kd6 39. Kf4 Na6 40. Kf5 Nc7 41. Kg6 Ne8 42. Rh7 Rxh7 43. Kxh7 Nf6+ 44. Kxh6 Nxe4 45. Kg6 b5 0-1

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.24"]
[Round "2"]
[White "Berghuis, Thomas"]
[Black "Hartevelt, Leendert"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1215"]
[BlackElo "1777"]
[PlyCount "80"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 Nc6 5. Be3 g6 6. Nbd2 Bg7 7. d4 cxd4 8. cxd4 Ng4 9. Qb3 0-0 10. h3 Nxe3 11. Qxe3 Qb6 12. Nc4 Qb4+ 13. Qc3 Qxc3+ 14. bxc3 b5 15. Ne3 b4 16. Bb5 Bb7 17. Nd5 Rae8 18. cxb4 e6 19. Ne3 Nxd4 20. Nxd4 Bxd4 21. Bxe8 Bxa1 22. 0-0 Bd4 23. Bd7 Bxe4 24. Rd1 Bxe3 25. fxe3 Bd5 26. a3 Rd8 27. Bb5 Rc8 28. Kf2 Rc2+ 29. Be2 Ra2 30. Rc1 Rxa3 31. b5 Ra2 32. Kf1 Bxg2+ 33. Kxg2 Rxe2+ 34. Kf3 Rb2 35. Rc8+ Kg7 36. Rb8 d5 37. Kf4 Kf6 38. Rb7 h5 39. h4 Rb3 40. e4 e5# 0-1

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.24"]
[Round "3"]
[White "Hartevelt, Leendert"]
[Black "Elgersma, Simon"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1777"]
[BlackElo "2189"]
[PlyCount "60"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bf4 Nf6 5. Nc3 c6 6. Bd3 Bb4 7. Nge2 0-0 8. f3 a5 9. Qd2 a4 10. a3 Ba5 11. 0-0 c5 12. Bb5 cxd4 13. Nxd4 Nc6 14. Bxc6 bxc6 15. Nxc6 Qb6+ 16. Nd4 Qxb2 17. Ndb5 Bf5 18. Ra2 Qxa2 19. Nxa2 Bxd2 20. Bxd2 Bxc2 21. Nb4 Bb3 22. Nd4 Rfe8 23. Rb1 Bc4 24. Kf2 Nd7 25. Nbc6 Nc5 26. Bc3 Rac8 27. Kg3 f6 28. Bb4 Nb3 29. Rd1 Nxd4 30. Nxd4 g6 0-1

[Event "NED-ch U18/20"]
[Site "Assen"]
[Date "2017.04.23"]
[Round "1"]
[White "Hartevelt, Leendert"]
[Black "Vrolijk, Liam"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "1777"]
[BlackElo "2378"]
[PlyCount "100"]
[EventDate "2017.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Nf3 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Rd1 Na6 11. 0-0 Nc5 12. Nd2 c6 13. f3 Ne6 14. Be3 Bf8 15. Nb3 Nd7 16. Na4 b6 17. Rd2 Bb4 18. Rc2 Be7 19. Rd1 f5 20. exf5 gxf5 21. Bd3 Ng7 22. Re2 Nf8 23. Bf2 Ng6 24. Nc3 Be6 25. g3 Rad8 26. c5 b5 27. Ree1 Rd7 28. Na5 Rc8 29. Bc2 Rxd1 30. Rxd1 Rc7 31. h3 Kf7 32. g4 Nf4 33. Kh2 b4 34. gxf5 Nxf5 35. Bxf5 Bxf5 36. Ne4 Nxh3 37. Bg3 Bxe4 38. Bxe5 Rc8 39. fxe4 Ng5 40. Bd6 Bf6 41. Nc4 Nxe4 42. Rf1 Kg6 43. Re1 Ng5 44. Kg2 h5 45. Bf4 Rg8 46. Bd2 h4 47. Ne5+ Kf5 48. Nf3 Nxf3+ 49. Kxf3 Rg3+ 50. Ke2 a5 0-1

