[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.05.04"]
[Round "9"]
[White "De Boer, Bas"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "D17"]
[BlackElo "1766"]
[PlyCount "72"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Nb6 8. e3 a5 9. Nxb6 Qxb6 10. Be2 e6 11. 0-0 Be7 12. Kh1 0-0 13. b3 Rfd8 14. Qe1 Qxb3 15. Bd1 Qb6 16. Ba3 Bb4 17. Bxb4 axb4 18. Nb1 Bd3 19. Be2 Qa6 20. Bxd3 Qxd3 21. Kg1 Qb3 22. Nd2 Qd5 23. Nf3 Qd6 24. e4 Qe7 25. Qe3 Ra5 26. Rfb1 Rda8 27. Qb3 b5 28. Ne5 Qe8 29. Qxb4 Rxa4 30. Rxa4 Rxa4 31. Qc5 Nxe4 32. Qxc6 Qxc6 33. Nxc6 Nc3 34. Re1 b4 35. Ne5 b3 36. Nd3 Rxd4 0-1

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.05.03"]
[Round "8"]
[White "Chang, Hawkie"]
[Black "Van Baar, Esper"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1766"]
[BlackElo "1851"]
[PlyCount "87"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. g4 b5 10. Qd2 Nbd7 11. g5 Nh5 12. Ne2 Qc7 13. Ng3 Nxg3 14. hxg3 Rc8 15. Rh2 Nc5 16. Nxc5 dxc5 17. a4 b4 18. Bxa6 Rd8 19. Bb5+ Kf8 20. Qe2 c4 21. Rd1 Rc8 22. f4 exf4 23. gxf4 c3 24. bxc3 Qxc3+ 25. Kf1 Bc4 26. Bxc4 Rxc4 27. Qd3 f6 28. gxf6 Bxf6 29. e5 Be7 30. Qxc3 Rxc3 31. Rd3 Kf7 32. Rxc3 bxc3 33. Bd4 Bb4 34. Rh3 Ra8 35. Rxh7 Rxa4 36. Rh3 Ke6 37. Rg3 Kf7 38. Ke2 Ba5 39. Kd3 Ra2 40. f5 Ra1 41. Rg1 Rxg1 42. Bxg1 g5 43. Bd4 g4 44. Ke3 1-0

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.05.02"]
[Round "7"]
[White "Mensing, Adrian"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B90"]
[BlackElo "1766"]
[PlyCount "91"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 a6 8. Be3 Be6 9. Qd2 b5 10. f3 Rc8 11. a4 b4 12. Nd5 Bxd5 13. exd5 Nb8 14. a5 Qc7 15. Rc1 Qb7 16. Rd1 Be7 17. 0-0 0-0 18. Kh1 Kh8 19. f4 exf4 20. Rxf4 Nfd7 21. Rxb4 Qc7 22. Rc1 Bf6 23. c4 Nc5 24. Nxc5 dxc5 25. Rb6 Qe5 26. Bg4 Rce8 27. Bxc5 Bg5 28. Qd1 Bxc1 29. Qxc1 Qe1+ 30. Qxe1 Rxe1+ 31. Bg1 Re4 32. h3 Rxc4 33. Be2 Rc2 34. Bxa6 Nxa6 35. Rxa6 Rxb2 36. Rc6 Rb5 37. Bc5 Ra8 38. a6 Rbb8 39. d6 Kg8 40. a7 Rd8 41. Rc7 f6 42. Re7 h6 43. d7 Kh7 44. Bb6 Rg8 45. Re1 Kg6 46. Rd1 1-0

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.05.01"]
[Round "6"]
[White "Chang, Hawkie"]
[Black "Bruschke, Alexander"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1766"]
[BlackElo "1517"]
[PlyCount "118"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. 0-0 Nf6 5. Re1 0-0 6. c3 d6 7. d4 Bg4 8. d5 Nb8 9. Nbd2 c6 10. dxc6 bxc6 11. Bb3 Nbd7 12. h3 Bh5 13. Nf1 Qc7 14. g4 Bg6 15. Ng3 Nc5 16. Bc2 Rad8 17. Nh4 d5 18. Nxg6 fxg6 19. b4 Ne6 20. Qe2 d4 21. Bb3 Qd7 22. Qc4 Nd5 23. exd5 cxd5 24. Qa6 e4 25. Nxe4 Bh4 26. Ng3 Rf6 27. Qd3 Qf7 28. Bd2 Rxf2 29. Rf1 Rf8 30. Bxd5 Bxg3 31. Bxe6 Qxe6 32. Qxg3 R8f3 33. Qb8+ Rf8 34. Qb5 Qf7 35. cxd4 Qf3 36. Qc4+ Kh8 37. Rxf2 Qxf2+ 38. Kh1 h6 39. Rf1 Qxf1+ 40. Qxf1 Rxf1+ 41. Kg2 Ra1 42. Bf4 Rxa2+ 43. Kf3 Rb2 44. Bd6 Rb3+ 45. Ke4 Rxh3 46. Bc5 a6 47. Ke5 Kg8 48. Ke6 Re3+ 49. Kd7 Kf7 50. d5 Rd3 51. d6 h5 52. Kc6 Ke6 53. Kb6 Kd7 54. Kxa6 Kc6 55. Ka7 Ra3+ 56. Kb8 Ra2 57. b5+ Kxc5 58. d7 Rd2 59. Kc7 Kxb5 0-1

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.04.30"]
[Round "5"]
[White "Leeftink, Gerbert"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "D23"]
[BlackElo "1766"]
[PlyCount "85"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Be2 Nbd7 6. Nf3 Bd6 7. 0-0 0-0 8. Qc2 dxc4 9. e4 Be7 10. Bxc4 b5 11. Bd3 h6 12. e5 Ne8 13. Be4 b4 14. Na4 Ba6 15. Rd1 Rc8 16. Be3 Nc7 17. Rac1 Nd5 18. Qd2 Bb5 19. Nc5 N7b6 20. Bb1 Nxe3 21. Qxe3 Bxc5 22. Rxc5 Na4 23. Qe4 g6 24. Rc2 Qd5 25. Qf4 Kh7 26. h4 f5 27. exf6 Qf5 28. Qg3 Qxf6 29. Ne5 Rcd8 30. Nxg6 Rg8 31. Rcd2 Kg7 32. Ne7+ Kf7 33. Nxg8 Rxg8 34. Qc7+ Kf8 35. Re1 Nb6 36. Qb8+ Kf7 37. Qxa7+ Kf8 38. Qxb6 Qxh4 39. Qb8+ Kf7 40. Qc7+ Kf8 41. Qd6+ Kf7 42. Qxe6+ Kf8 43. Qe8+ 1-0

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.04.29"]
[Round "4"]
[White "Chang, Hawkie"]
[Black "Ousmane, Tijany"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1766"]
[PlyCount "115"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. h3 c6 7. a4 a5 8. Be3 Qc7 9. 0-0 h6 10. Re1 Nf8 11. Bb3 g5 12. Nh2 Ng6 13. Qd2 Rg8 14. dxe5 dxe5 15. f3 Bb4 16. Qf2 Qe7 17. Red1 Nf4 18. Ng4 h5 19. Nh6 Rg7 20. Nf5 Bxf5 21. exf5 e4 22. Nxe4 Nxe4 23. fxe4 Qxe4 24. c3 Be7 25. Bc2 Qc4 26. Rd2 Rd8 27. Rxd8+ Kxd8 28. Rd1+ Kc8 29. Rd2 f6 30. Kh1 c5 31. Bxf4 gxf4 32. Rd3 b6 33. b3 Qg8 34. Rf3 Bd6 35. c4 Be5 36. Be4 Bd4 37. Qf1 Qe8 38. Bd5 Be3 39. Be6+ Kc7 40. Qd1 Qc6 41. Qc2 Qd6 42. Rf1 Qe5 43. Qd1 Qb2 44. Qf3 Rg3 45. Qa8 Qd2 46. Qa7+ Kd6 47. Qb8+ Kc6 48. Bd5+ Kd7 49. Qb7+ Kd6 50. Qb8+ Kd7 51. Qf8 Qc3 52. Qf7+ Kd6 53. Qe6+ Kc7 54. Qe7+ Kc8 55. Be6+ Kb8 56. Qd8+ Ka7 57. Qc7+ Ka6 58. Bc8# 1-0

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.04.28"]
[Round "3"]
[White "Brouwer, Jorn"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "B92"]
[BlackElo "1766"]
[PlyCount "74"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 b5 8. a3 Bb7 9. Bd3 Nbd7 10. 0-0 Rc8 11. Re1 Be7 12. Nh4 g6 13. Nf3 Bf8 14. Ng5 Nb6 15. Bf1 Bg7 16. f4 Qc7 17. Kh1 0-0 18. Qf3 Nc4 19. Bxc4 Qxc4 20. Qd3 Qc6 21. Qh3 exf4 22. Bxf4 h6 23. Nf3 g5 24. Bxg5 hxg5 25. Nxg5 Qd7 26. Qh4 Qg4 27. Qxg4 Nxg4 28. h3 Bh6 29. Nf3 Ne5 30. Nxe5 dxe5 31. Rad1 Rfd8 32. Re2 Rxd1+ 33. Nxd1 Rc4 34. Nc3 Bc1 35. Nd5 Bxd5 36. exd5 Bxb2 37. d6 Kf8 0-1

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.04.27"]
[Round "2"]
[White "Chang, Hawkie"]
[Black "Manshanden, Nick"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1766"]
[PlyCount "48"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. g3 d5 8. Bg2 dxe4 9. 0-0 Bxd4 10. cxd4 Bf5 11. Nc3 Rd8 12. Qa4 0-0 13. Rad1 Nd5 14. Qb5 Qe6 15. a3 Bg4 16. Rc1 Bf3 17. Rfe1 Nxc3 18. bxc3 Rd5 19. Qxb7 Rh5 20. Bf4 Bxg2 21. Kxg2 Qh3+ 22. Kg1 Qxh2+ 23. Kf1 Qh1+ 24. Ke2 Qf3+ 0-1

[Event "NED-ch U17"]
[Site "Rotterdam"]
[Date "2014.04.26"]
[Round "1"]
[White "Lecomte, Robin"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2013"]
[BlackElo "1766"]
[PlyCount "83"]
[EventDate "2014.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. g4 h6 10. Bg2 Rc8 11. 0-0 Be7 12. Qd2 Nb6 13. Na5 Qc7 14. Nd5 Bxd5 15. exd5 0-0 16. b3 Nbd7 17. Nc4 Nc5 18. a4 b6 19. f4 Rfd8 20. Rae1 Nxa4 21. Qb4 b5 22. Na5 Nc3 23. Rd1 Nxd1 24. Rxd1 exf4 25. Bxf4 Qc5+ 26. Qxc5 Rxc5 27. Nc6 Rxc6 28. dxc6 Ne8 29. Be3 Rc8 30. Ra1 Nc7 31. Bb6 Bf6 32. Ra2 Na8 33. Bf2 Nc7 34. Kf1 Bd8 35. Bb6 Ra8 36. Be4 d5 37. Bd3 Ne6 38. Bxd8 Rxd8 39. Rxa6 Nc5 40. Rb6 Nxd3 41. c7 Rc8 42. Rb8 1-0

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.10"]
[Round "9"]
[White "Roesink, Myron"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1809"]
[BlackElo "1757"]
[PlyCount "93"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 b5 9. Qd2 Nbd7 10. g4 Nb6 11. Qf2 Nfd7 12. Rd1 b4 13. Nd5 Bxd5 14. exd5 Na4 15. Qd2 Qf6 16. Be2 a5 17. Bb5 Nac5 18. Bxc5 dxc5 19. Qe3 Qf4 20. Bxd7+ Kxd7 21. Nxc5+ Bxc5 22. Qxc5 Rhc8 23. Qb5+ Kd6 24. Qb6+ Kd7 25. d6 Rab8 26. Qa7+ Kc6 27. d7 Rd8 28. 0-0 Qc4 29. Qxa5 f6 30. Qa4+ Kb7 31. Qb3 Qxb3 32. axb3 Kc7 33. f4 exf4 34. Rxf4 Rxd7 35. Rxd7+ Kxd7 36. Kf2 Rb7 37. Ke3 Kd6 38. Kd3 Kc5 39. Rf5+ Kd6 40. Ra5 Rc7 41. Rb5 g6 42. Rxb4 Ke5 43. Re4+ Kd5 44. c4+ Kc5 45. Kc3 Rd7 46. b4+ Kb6 47. Re6+ 1-0

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "8"]
[White "Chang, Hawkie"]
[Black "Kalle, Erwin"]
[Result "1-0"]
[ECO "C19"]
[WhiteElo "1757"]
[BlackElo "1633"]
[PlyCount "67"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Nbc6 8. Bd3 Bd7 9. a4 Qa5 10. Qd2 c4 11. Be2 0-0 12. Ba3 Rfc8 13. 0-0 Qd8 14. Nh4 Ng6 15. Nxg6 hxg6 16. f4 Ne7 17. Rf3 Nf5 18. g4 Nh6 19. g5 Nf5 20. Rh3 f6 21. Bg4 fxg5 22. Bxf5 gxf5 23. fxg5 g6 24. Qf4 Kg7 25. Qh4 Qh8 26. Be7 Qxh4 27. Bf6+ Kf7 28. Rxh4 Be8 29. Rb1 b6 30. a5 Rab8 31. a6 Ra8 32. Rf1 Bb5 33. Rh7+ Ke8 34. Rf3 1-0

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "5"]
[White "Chang, Hawkie"]
[Black "Braggaar, Wessel"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1757"]
[BlackElo "1846"]
[PlyCount "108"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nc6 6. Nge2 Nge7 7. 0-0 0-0 8. a3 Bxc3 9. bxc3 Bf5 10. Bg5 Qd7 11. Bb5 f6 12. Be3 a6 13. Bd3 Rfe8 14. c4 dxc4 15. Bxc4+ Kh8 16. Nf4 Ng6 17. c3 Rad8 18. Qd2 Na5 19. Ba2 Qa4 20. h3 Ne5 21. Qb2 Nec4 22. Qb4 Bd7 23. Rfe1 Qxa3 24. Qxa3 Nxa3 25. Bf7 Nc2 26. Bxe8 Rxe8 27. Rxa5 Nxe1 28. c4 Nc2 29. Bd2 g6 30. g4 c6 31. d5 Kg7 32. Kf1 Re4 33. dxc6 Bxc6 34. c5 Nd4 35. Be3 Nb3 36. Ra3 Nxc5 37. Bxc5 Rxf4 38. Be3 Rb4 39. Ra1 Kf7 40. Re1 Re4 41. Bd2 Bb5+ 42. Kg2 Rxe1 43. Bxe1 Ke6 44. Kf3 Kd5 45. Kf4 Bd7 46. h4 b5 47. g5 fxg5+ 48. hxg5 Kd4 49. Ba5 Bf5 50. Bd2 Kc4 51. Ke3 Kb3 52. Kd4 b4 53. Kc5 a5 54. Kb5 Kc2 0-1

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "4"]
[White "Waardenburg, Lisanne"]
[Black "Chang, Hawkie"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1580"]
[BlackElo "1757"]
[PlyCount "79"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 Nbd7 10. g4 0-0 11. 0-0-0 b5 12. h4 Nb6 13. g5 Nh5 14. Qf2 Rb8 15. Be2 Bc4 16. Nd2 Bxe2 17. Nxe2 Qc7 18. Kb1 Rfc8 19. Rc1 Nc4 20. Nc3 Nxe3 21. Qxe3 Nf4 22. Nf1 Bd8 23. Qd2 Qc5 24. Ne2 Ba5 25. Qd1 Nxe2 26. Qxe2 Bb6 27. Ng3 g6 28. h5 Qe3 29. hxg6 fxg6 30. Qh2 Rb7 31. Qh3 Re8 32. Qg4 Bd8 33. Qc8 Rc7 34. Qxa6 Qc5 35. Rcd1 Be7 36. Qa5 Qxc2+ 37. Ka1 Rec8 38. a3 Qb3 39. Qd2 Kh8 40. Qd5 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "3"]
[White "Chang, Hawkie"]
[Black "Dubbeldam, Mathijs"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1757"]
[BlackElo "1402"]
[PlyCount "31"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 b6 3. c4 Bb7 4. Nc3 Bb4 5. Bd3 Ne7 6. Nge2 0-0 7. a3 Bxc3+ 8. Nxc3 f5 9. 0-0 c5 10. d5 fxe4 11. Bxe4 Nf5 12. dxe6 Bxe4 13. Nxe4 dxe6 14. Ng5 Qe8 15. Qe2 Nd4 16. Qe4 1-0

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "2"]
[White "Naber, Quirine"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1447"]
[BlackElo "1757"]
[PlyCount "99"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 Be7 5. Bd3 c5 6. c3 Nfd7 7. Bf4 b6 8. Nbd2 Ba6 9. Qe2 Bxd3 10. Qxd3 c4 11. Qc2 b5 12. 0-0 Nf8 13. Rfe1 Ng6 14. Bg3 Bd6 15. e4 Bxg3 16. fxg3 0-0 17. exd5 exd5 18. Re2 Qd7 19. Nf1 Nc6 20. Rae1 Rfe8 21. Ne3 h6 22. Qf5 Qxf5 23. Nxf5 Rxe2 24. Rxe2 Rd8 25. N3h4 Nxh4 26. gxh4 Kf8 27. Re3 h5 28. Kf2 g6 29. Ng3 b4 30. Ne2 bxc3 31. bxc3 Rb8 32. Nf4 Ne7 33. Re5 Rb2+ 34. Re2 Rb1 35. h3 Rc1 36. g4 Rxc3 37. Rxe7 Ra3 38. Re2 hxg4 39. hxg4 Ra5 40. g5 Kg7 41. Kg3 Ra3+ 42. Kg4 Ra5 43. h5 gxh5+ 44. Kxh5 Rb5 45. Kg4 a5 46. Kf5 a4 47. Re8 Rb2 48. Nh5+ Kh7 49. Nf6+ Kg7 50. Rg8# 1-0

[Event "NED-ch U16 op"]
[Site "Borne"]
[Date "2013.08.05"]
[Round "1"]
[White "Chang, Hawkie"]
[Black "Kootstra, Jelmer"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "1757"]
[BlackElo "1321"]
[PlyCount "95"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. Qd2 Nc6 10. 0-0-0 f6 11. exf6 Qxf6 12. g3 cxd4 13. Nxd4 Nxd4 14. Qxd4 Qxd4 15. Rxd4 Nf6 16. Bg2 0-0 17. Re1 Re8 18. Rd2 Bd7 19. f5 Rad8 20. fxe6 Bxe6 21. Nxd5 Nxd5 22. Bxd5 Bxd5 23. Rxe8+ Rxe8 24. Rxd5 Re2 25. Rd8+ Kf7 26. Rd7+ Kf8 27. Rxb7 Rxh2 28. Rd7 Rh1+ 29. Kd2 Rh2+ 30. Kc3 Rf2 31. Rd3 Ke7 32. Kb3 Ke6 33. c4 g5 34. c5 g4 35. c6 Rf3 36. Kc3 h5 37. Rxf3 gxf3 38. Kd3 f2 39. Ke2 f1Q+ 40. Kxf1 Kd6 41. Kg2 Kxc6 42. Kh3 Kd5 43. Kh4 Kd4 44. Kxh5 Kd3 45. g4 Kc2 46. g5 Kxb2 47. g6 Kxa2 48. g7 1-0

[Event "NED-ch U15"]
[Site "Sneek"]
[Date "2013.05.05"]
[Round "9"]
[White "Chang, Hawkie"]
[Black "Yang, Wang"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1780"]
[PlyCount "75"]
[EventDate "2013.04.27"]
[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 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 bxa4 14. Rxa4 Bb7 15. Bd3 Ne7 16. Bc4 Nxd5 17. Bxd5 Bxd5 18. Qxd5 a5 19. 0-0 Qb6 20. b4 Rac8 21. bxa5 Qc6 22. Qxc6 Rxc6 23. c4 Ra8 24. Rfa1 Bd2 25. a6 Rb6 26. g3 Kf8 27. a7 Rb7 28. R1a2 Ke7 29. Kf1 Kd7 30. Ke2 Bg5 31. Nb4 Bd8 32. Nd5 Rb3 33. Ra6 Bc7 34. Rd2 Rb7 35. Nxc7 Rxc7 36. Rdxd6+ Ke7 37. Rd5 f6 38. Kd3 1/2-1/2

[Event "NED-ch U15"]
[Site "Sneek"]
[Date "2013.05.04"]
[Round "8"]
[White "Warmerdam, Max"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B90"]
[BlackElo "1780"]
[PlyCount "85"]
[EventDate "2013.04.27"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 Nbd7 10. g4 b5 11. g5 Nh5 12. 0-0-0 0-0 13. Ne2 a5 14. Kb1 b4 15. Ng3 Nf4 16. h4 Bxb3 17. cxb3 Ne6 18. Nf5 a4 19. bxa4 Rxa4 20. Bb5 Ra8 21. Qxb4 Ndc5 22. Rh2 g6 23. Nxe7+ Qxe7 24. Qd2 Rfd8 25. h5 Qc7 26. hxg6 fxg6 27. Bc4 Kg7 28. Bxc5 dxc5 29. Rxh7+ Kxh7 30. Qh2+ Kg7 31. Qh6+ Kf7 32. Bxe6+ Kxe6 33. Qxg6+ Ke7 34. Rh1 Kd7 35. Rh7+ Kc8 36. Rxc7+ Kxc7 37. Qg7+ Kb6 38. Qxe5 Rd1+ 39. Kc2 Rad8 40. Qc3 c4 41. Qb4+ Ka7 42. Qa5+ Kb7 43. g6 1-0

[Event "NED-ch U15"]
[Site "Sneek"]
[Date "2013.05.02"]
[Round "6"]
[White "Bekedam, Tyro"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B92"]
[BlackElo "1780"]
[PlyCount "66"]
[EventDate "2013.04.27"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 b5 9. a3 Nbd7 10. 0-0 Nb6 11. f4 Qc7 12. f5 Bc4 13. g4 Bxe2 14. Qxe2 Nc4 15. g5 Nxe3 16. Qxe3 Nd7 17. Kh1 Nb6 18. Rab1 Rc8 19. f6 h6 20. g6 fxg6 21. f7+ Kd8 22. Qg1 g5 23. Qf2 Be7 24. Rbd1 Rb8 25. Nc5 Kc8 26. f8Q+ Bxf8 27. Qxf8+ Rxf8 28. Rxf8+ Qd8 29. Rxd8+ Kxd8 30. Rxd6+ Kc7 31. Re6 Rf8 32. Nxa6+ Kb7 33. Nc5+ Kc7 1-0

[Event "NED-ch U15"]
[Site "Sneek"]
[Date "2013.04.29"]
[Round "3"]
[White "Chang, Hawkie"]
[Black "Halfhide, Sebastian"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "92"]
[EventDate "2013.04.27"]
[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. exd5 exd5 5. Bd3 Nc6 6. Nge2 Bg4 7. Be3 Nge7 8. h3 Bh5 9. Qd2 Bg6 10. Nf4 Qd7 11. a3 Bxc3 12. Qxc3 Nf5 13. Bb5 0-0 14. 0-0-0 a6 15. Ba4 Nd6 16. Nxd5 Ne4 17. Bxc6 Nxc3 18. Bxd7 Nxd5 19. Bg4 Rfe8 20. Rhe1 Be4 21. g3 f5 22. Bh5 g6 23. Be2 Nxe3 24. fxe3 Kg7 25. Bd3 Bg2 26. h4 Rad8 27. Bc4 Re7 28. Rd2 Bc6 29. d5 Be8 30. Rde2 b5 31. Bb3 Re4 32. c3 Bf7 33. Rd2 Rde8 34. Rd3 c6 35. Kd2 Rd8 36. Rd4 Bxd5 37. Bxd5 Rxd5 38. Rxd5 cxd5 39. Ke2 Kf6 40. Rd1 Ke5 41. Kf3 Kd6 42. b3 a5 43. Rd4 h6 44. Rxe4 dxe4+ 45. Kf4 Ke6 46. g4 h5 1/2-1/2

[Event "NED-ch U15"]
[Site "Sneek"]
[Date "2013.04.27"]
[Round "1"]
[White "Chang, Hawkie"]
[Black "Roesink, Veron"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "75"]
[EventDate "2013.04.27"]
[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. exd5 exd5 5. Bd3 Nf6 6. Nge2 0-0 7. 0-0 c6 8. Bd2 Bd6 9. h3 Re8 10. Re1 Be6 11. Nf4 Nbd7 12. Rb1 b5 13. a3 Qb6 14. Nce2 c5 15. c3 a5 16. dxc5 Bxc5 17. Nd4 Rab8 18. Be3 Kh8 19. b4 axb4 20. axb4 Bxd4 21. Bxd4 Qc7 22. Qf3 Qd8 23. Ra1 Nf8 24. Ra5 Bg4 25. Rxe8 Bxf3 26. Rxd8 Rxd8 27. gxf3 Ne6 28. Nxe6 fxe6 29. Ra6 Nh5 30. Be5 Kg8 31. Rxe6 Kf7 32. Ra6 Re8 33. f4 g5 34. Bxb5 Re7 35. Rh6 Nxf4 36. Rxh7+ Ke6 37. Rxe7+ Kxe7 38. Bxf4 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.28"]
[Round "7"]
[White "Chang, Hawkie"]
[Black "Roemhild, Wolfgang"]
[Result "1-0"]
[ECO "C46"]
[WhiteElo "1581"]
[BlackElo "1691"]
[PlyCount "49"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d6 5. Nc3 Bd7 6. Be3 Nge7 7. Be2 Qc8 8. 0-0 Ng6 9. f4 Be7 10. Qd2 Bg4 11. Bxg4 Qxg4 12. Rf3 0-0 13. Raf1 Qd7 14. b3 Kh8 15. Rh3 Nxd4 16. Bxd4 c5 17. Bxg7+ Kxg7 18. f5 h5 19. fxg6 f6 20. Rf5 Rh8 21. Rfxh5 Rxh5 22. Rxh5 Kxg6 23. Qh6+ Kf7 24. Qh7+ Ke8 25. Qg6+ 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.28"]
[Round "6"]
[White "Heman, Frans"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1550"]
[BlackElo "1581"]
[PlyCount "110"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 d5 3. e3 Nc6 4. Bb5 Bd7 5. Bxc6 Bxc6 6. 0-0 Nf6 7. d3 g6 8. Nbd2 Bg7 9. Ne5 Rc8 10. Ndf3 Nd7 11. Nxc6 Rxc6 12. Rb1 0-0 13. Qe1 b6 14. Qh4 e5 15. Qxd8 Rxd8 16. fxe5 Nxe5 17. Nxe5 Bxe5 18. Bd2 c4 19. d4 Bg7 20. Rf3 Re6 21. Re1 Rde8 22. h3 Bxd4 23. exd4 Rxe1+ 24. Bxe1 Rxe1+ 25. Kf2 Rc1 26. Ra3 Rd1 27. Ke3 Re1+ 28. Kf3 Re4 29. Re3 Rxe3+ 30. Kxe3 Kg7 31. Kf4 Kf6 32. h4 h6 33. c3 g5+ 34. hxg5+ hxg5+ 35. Kf3 Kg6 36. g3 f5 37. b3 cxb3 38. axb3 b5 39. b4 Kf6 40. Ke3 Ke6 41. Kf3 Kd6 42. Ke3 Kc6 43. Kf2 Kb6 44. Ke2 a5 45. bxa5+ Kxa5 46. Kd3 Ka4 47. Kc2 Ka3 48. Kd3 Kb3 49. Kd2 f4 50. gxf4 gxf4 51. Kd3 f3 52. Ke3 Kxc3 53. Kxf3 b4 54. Ke2 b3 55. Kd1 b2 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.27"]
[Round "4"]
[White "Chang, Hawkie"]
[Black "Beukema, Christiaan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1581"]
[BlackElo "1146"]
[PlyCount "41"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Nf6 6. e5 Ng8 7. Nc3 d6 8. Bf4 f6 9. exd6 Bxd6 10. Bxd6 Qxd6 11. Qxd6 cxd6 12. Nb5 Kd7 13. 0-0-0 b6 14. Nxd6 Ke7 15. Bc4 Nh6 16. Rhe1+ Kd7 17. Ne8+ Kc6 18. Bd5+ Kc5 19. Bxa8 Bg4 20. Rd5+ Kc4 21. Re4# 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.27"]
[Round "5"]
[White "Deniz, Patrick"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "800"]
[BlackElo "1581"]
[PlyCount "64"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 d5 4. Bb5+ Bd7 5. d3 Bxb5 6. Nxb5 Qa5+ 7. Nc3 d4 8. Bd2 dxc3 9. Bxc3 Qc7 10. 0-0 Nc6 11. d4 Rd8 12. d5 e5 13. dxc6 Rxd1 14. Rfxd1 Qxc6 15. Nxe5 Qe6 16. Rd5 Nf6 17. Rd3 Be7 18. f3 0-0 19. Kf2 c4 20. Rd2 Bb4 21. Bxb4 Qb6+ 22. Ke2 Qxb4 23. b3 Qc3 24. Rad1 Qxe5 25. bxc4 Qxh2 26. Rd8 Qxg2+ 27. Ke3 Qg5+ 28. Kf2 Nxe4+ 29. fxe4 Rxd8 30. Re1 Qf4+ 31. Kg2 Rd2+ 32. Kh3 Rh2# 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.26"]
[Round "3"]
[White "Chang, Hawkie"]
[Black "Dijksman, Sebastiaan"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1581"]
[BlackElo "1654"]
[PlyCount "64"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e6 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Bd3 Bxd3 9. cxd3 Qb6 10. Ne2 Nd7 11. Nbc3 Ne7 12. g4 g6 13. Rb1 gxh5 14. Rxh5 0-0-0 15. Be3 Bg7 16. Qc1 Ng6 17. f4 f5 18. gxf5 exf5 19. Ng3 Ne7 20. Ke2 Kb8 21. Nxf5 Nxf5 22. Rxf5 c5 23. dxc5 Qg6 24. Qg1 Qxf5 25. Qxg7 Rdg8 26. Qe7 Rg2+ 27. Bf2 Qxf4 28. Rf1 Nxe5 29. Nb5 Qf3+ 30. Kd2 Qxd3+ 31. Kc1 Qxf1+ 32. Kc2 Rxf2+ 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.26"]
[Round "2"]
[White "Reyskens, Jules"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1737"]
[BlackElo "1581"]
[PlyCount "99"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. 0-0 Qc7 8. Be3 b5 9. a3 Bb7 10. Bd3 Nbd7 11. h3 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. Qd2 Bc5 15. Ne2 e5 16. Nc3 Nf6 17. Nxd5 Nxd5 18. Bxb5+ axb5 19. Qxd5 Rc8 20. Bxc5 Qxc5 21. Qxc5 Rxc5 22. c3 Ke7 23. Rad1 Ke6 24. Rd2 Rd5 25. Rfd1 Rhd8 26. Rxd5 Rxd5 27. Rxd5 Kxd5 28. b3 Ke4 29. f3+ Kd3 30. a4 bxa4 31. bxa4 Kc4 32. Kf2 f5 33. Ke3 g6 34. g4 Kc5 35. g5 Kb6 36. c4 Kc5 37. a5 Kc6 38. Kd3 Kc5 39. Kc3 Kc6 40. Kb4 Kb7 41. c5 Kc7 42. a6 Kc6 43. h4 Kc7 44. Kc4 Kc6 45. Kb4 Kc7 46. Kc3 Kc6 47. Kc4 Kc7 48. Kd5 e4 49. fxe4 f4 50. Kd4 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.25"]
[Round "1"]
[White "Chang, Hawkie"]
[Black "Van Dael, Siem"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1581"]
[BlackElo "1127"]
[PlyCount "121"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5 Bd6 7. N1c3 Nge7 8. Be2 0-0 9. 0-0 Be5 10. f4 Bxc3 11. Nxc3 d6 12. Rb1 a6 13. a3 Bd7 14. Nd5 Nxd5 15. exd5 Ne7 16. Bd4 Qg6 17. c4 Bf5 18. Rc1 c5 19. Bc3 Bh3 20. Rf2 Nf5 21. Bh5 Qh6 22. gxh3 Ne3 23. Qf3 Nxc4 24. Bxg7 Kxg7 25. Rxc4 Rg8 26. Rg2+ Kf6 27. Qc3+ Ke7 28. Re4+ Kf8 29. Rxg8+ Kxg8 30. Qg3+ Kf8 31. Qg4 Qf6 32. Qg2 b5 33. Qd2 a5 34. Qc3 Qxc3 35. bxc3 b4 36. cxb4 axb4 37. axb4 Ra4 38. Bd1 Ra1 39. Re1 cxb4 40. Kf2 Ra5 41. Bb3 Ra3 42. Rb1 Kg7 43. Bc4 Rxh3 44. Kg2 Rh4 45. Kg3 Rh6 46. Bd3 Rh5 47. Be4 f5 48. Bd3 Kf6 49. Re1 Kg7 50. Re6 Kf7 51. Be2 Rxh2 52. Kxh2 b3 53. Bd3 b2 54. Rxd6 h5 55. Rb6 h4 56. Rxb2 Kf6 57. Re2 h3 58. d6 Kf7 59. d7 Kg6 60. d8Q Kh5 61. Qg5# 1-0

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.06"]
[Round "9"]
[White "Chang, Hawkie"]
[Black "Wolters, Alec"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1591"]
[BlackElo "1536"]
[PlyCount "109"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxe7 Qxe7 11. c4 b4 12. Nc2 0-0 13. Ne3 Qe6 14. Bd3 Nd4 15. Bxf6 Qxf6 16. Nd5 Qg5 17. Ne3 Be6 18. Qd2 a5 19. f3 Rac8 20. b3 Rc5 21. Nc2 Qxd2+ 22. Kxd2 Nxc2 23. Kxc2 Ra8 24. a3 Rcc8 25. Ra2 Bd7 26. Be2 Kf8 27. Rha1 Bc6 28. Kb2 Ke7 29. axb4 axb4 30. Ra6 Rab8 31. g3 Rc7 32. Bf1 g6 33. Bh3 Bd7 34. Bxd7 Rxd7 35. Rd1 Rbb7 36. Rd5 f5 37. Ra4 Ke6 38. Rb5 Rxb5 39. cxb5 fxe4 40. fxe4 Rf7 41. Rxb4 Kd7 42. Rc4 Ke6 43. b6 Rb7 44. Rc7 Rxb6 45. Rxh7 d5 46. Rh6 Kf6 47. exd5 Rd6 48. b4 Rxd5 49. Kc3 e4 50. Rh4 Ke5 51. Rh8 Rd3+ 52. Kc2 Rd5 53. Re8+ Kd4 54. Kd2 Re5 55. Rd8+ 1/2-1/2

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.05"]
[Round "8"]
[White "Schaap, Ricky"]
[Black "Chang, Hawkie"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1264"]
[BlackElo "1591"]
[PlyCount "52"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 g6 4. d4 cxd4 5. cxd4 Nf6 6. Nc3 Bg7 7. Bc4 0-0 8. 0-0 Nbd7 9. h3 a6 10. a4 e5 11. dxe5 dxe5 12. Be3 Qc7 13. Bb3 Nc5 14. Rc1 Nxb3 15. Qxb3 Be6 16. Qb6 Qxb6 17. Bxb6 Rac8 18. Be3 Rfe8 19. Nd2 Rc6 20. Ne2 Rxc1 21. Rxc1 Rc8 22. Rxc8+ Bxc8 23. f3 Be6 24. Nc3 Bf8 25. Bg5 Nd7 26. Be3 Kg7 1/2-1/2

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.04"]
[Round "7"]
[White "Chang, Hawkie"]
[Black "Luk, Jaimy"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1591"]
[BlackElo "1754"]
[PlyCount "104"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5 Bxe3 7. fxe3 Qd8 8. N1c3 Nf6 9. Qd2 0-0 10. 0-0-0 d6 11. Be2 Re8 12. Bf3 Ne5 13. Nd4 Bd7 14. h3 Rb8 15. Rdf1 b5 16. Qe2 b4 17. Nd5 Nxd5 18. exd5 a6 19. Be4 Qh4 20. Rf4 Qh6 21. Rhf1 Bb5 22. Nxb5 axb5 23. Bd3 Nxd3+ 24. Qxd3 Re7 25. R1f3 Rbe8 26. Kd2 Qg5 27. Rg4 Qh6 28. Rgg3 Rb8 29. Qb3 Re5 30. Ke2 Qh5 31. Qxb4 Rxd5 32. Qc3 Re5 33. Qxc7 Rbe8 34. Kf2 Rc5 35. Qxd6 Rxc2+ 36. Kg1 Qe5 37. Qd7 Rc7 38. Qd4 Qxd4 39. exd4 Rc1+ 40. Kh2 Ree1 41. Rg5 g6 42. Rxb5 Re2 43. Rc3 Rd1 44. d5 Rdd2 45. Rg3 Rxb2 46. Rxb2 Rxb2 47. a4 Rd2 48. a5 Rxd5 49. Ra3 Rd7 50. a6 Ra7 51. Kg3 Kf8 52. Kg4 h6 1/2-1/2

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.03"]
[Round "6"]
[White "Mouhdad, Yassine"]
[Black "Chang, Hawkie"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "1752"]
[BlackElo "1591"]
[PlyCount "86"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 a6 7. f3 Nc6 8. Qd2 Be7 9. g4 Qc7 10. h4 b5 11. g5 Nd7 12. a3 Bb7 13. Rg1 Rc8 14. h5 Nde5 15. Be2 Na5 16. Qc1 Nac4 17. Bf2 Nxb2 18. Qxb2 Qxc3+ 19. Qxc3 Rxc3 20. Kd2 Rc7 21. c3 Nc6 22. Nb3 e5 23. Be3 0-0 24. Rgd1 f5 25. gxf6 Rxf6 26. Ke1 Kh8 27. Kf2 h6 28. Rac1 Kh7 29. c4 Nd8 30. Kg3 g6 31. cxb5 Rxc1 32. Rxc1 axb5 33. Bxb5 gxh5 34. Be8 Rf8 35. Bxh5 Ne6 36. Bg4 Nd8 37. Rh1 Nf7 38. Bf5+ Kg7 39. a4 Bg5 40. Bxg5 Nxg5 41. a5 Nxf3 42. a6 Bxa6 43. Rd1 Nd4 1/2-1/2

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.02"]
[Round "5"]
[White "Chang, Hawkie"]
[Black "Brouwer, Jorn"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "1591"]
[BlackElo "1287"]
[PlyCount "131"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 8. f3 Bd7 9. Qd2 0-0 10. 0-0-0 Rc8 11. Bb3 Qa5 12. Nd5 Nxd5 13. Qxa5 Nxa5 14. Bxd5 e6 15. Bb3 Rc7 16. Rd3 Rfc8 17. c3 b5 18. Nc2 Bf8 19. Rhd1 a6 20. Bb6 Nxb3+ 21. axb3 Rb7 22. Ba5 e5 23. Bb4 Bh6+ 24. Kb1 Be6 25. Rxd6 Bg5 26. Rxa6 Bxb3 27. Re1 Rbb8 28. Ra3 Be6 29. Ne3 Bc4 30. Nd5 Bd3+ 31. Ka2 Ra8 32. b3 Rxa3+ 33. Bxa3 Ra8 34. Kb2 h6 35. Nb4 Be7 36. Nxd3 Bxa3+ 37. Kc2 f6 38. b4 Kf7 39. Kb3 Rd8 40. Nc5 Bxb4 41. Kxb4 Rd2 42. Rg1 Rb2+ 43. Ka3 Rc2 44. Kb3 Rd2 45. Na6 Rd6 46. Nc7 Ke7 47. Nxb5 Rb6 48. Kb4 Kd7 49. Rd1+ Kc6 50. Rd6+ Kb7 51. Rxb6+ Kxb6 52. c4 f5 53. Nd6 Kc6 54. exf5 Kxd6 55. fxg6 Ke7 56. c5 Kf6 57. c6 Kxg6 58. c7 Kf5 59. c8Q+ Kf4 60. Qg4+ Ke3 61. Kc3 Kf2 62. Kd2 h5 63. Qg3+ Kg1 64. Qe1+ Kxh2 65. g4 h4 66. Ke2 1-0

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.05.01"]
[Round "4"]
[White "Corstjens, Rolf"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1638"]
[BlackElo "1591"]
[PlyCount "97"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 a6 4. Nf3 d5 5. d3 dxe4 6. Nxe4 Nf6 7. Be3 Nc6 8. c3 Nxe4 9. dxe4 Qc7 10. e5 Be7 11. Qc2 f6 12. exf6 Bxf6 13. Bd3 g6 14. 0-0-0 b5 15. Ng5 0-0 16. h4 Ne7 17. h5 Nf5 18. Bxf5 exf5 19. hxg6 hxg6 20. Rh7 Qc6 21. Rdh1 Bb7 22. R1h6 Bxg5 23. fxg5 Rfe8 24. Qd2 Rad8 25. Rh8+ Kf7 26. R6h7+ Ke6 27. Rxe8+ Qxe8 28. Qf2 Rd7 29. Rh6 Kf7 30. Bxc5 Qe4 31. Rh7+ Ke6 32. Rh6 Kf7 33. Qg3 Qd3 34. Qxd3 Rxd3 35. Rh7+ Ke8 36. Rxb7 Rg3 37. Re7+ Kd8 38. Re2 Kd7 39. Be7 Rg4 40. Bf6 Ra4 41. b3 Rg4 42. Kd2 Kd6 43. Ke3 a5 44. Kf3 a4 45. Rd2+ Kc6 46. Rd4 axb3 47. axb3 Rxd4 48. Bxd4 Kd5 49. Bg7 1-0

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.04.30"]
[Round "3"]
[White "Chang, Hawkie"]
[Black "Blees, Timothy"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "1591"]
[BlackElo "1244"]
[PlyCount "135"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Bc4 Nc6 6. Qd3 e6 7. a3 Nf6 8. Nc3 Be7 9. b4 b5 10. Bb3 Bb7 11. Bb2 Rc8 12. e5 Nxe5 13. Nxe5 dxe5 14. Qxd8+ Rxd8 15. 0-0 0-0 16. Rfe1 e4 17. Rad1 Rd6 18. Rxd6 Bxd6 19. h3 Rd8 20. Rd1 Bc7 21. a4 Rxd1+ 22. Nxd1 Nd5 23. axb5 axb5 24. c3 Kf8 25. Bc2 f5 26. Ne3 Nxe3 27. fxe3 Kf7 28. Kf2 Be5 29. Bd1 Kf6 30. Bb3 Bd5 31. Bd1 Kg5 32. Be2 Bc4 33. Bxc4 bxc4 34. b5 Bc7 35. Ba3 Bb6 36. Bd6 Kf6 37. g3 g5 38. Ke2 Kf7 39. Be5 Ke7 40. g4 fxg4 41. hxg4 Kf7 42. Bd4 Bc7 43. Ba7 Kg6 44. b6 Bxb6 45. Bxb6 h5 46. gxh5+ Kxh5 47. Kf2 Kh4 48. Kg2 Kg4 49. Bc7 Kh4 50. Bd6 g4 51. Be7+ Kh5 52. Kg3 Kg6 53. Kxg4 Kf7 54. Bd6 Ke8 55. Kf4 Kd7 56. Bb4 Kc6 57. Kxe4 Kd7 58. Ke5 Kd8 59. Kxe6 Ke8 60. e4 Kd8 61. e5 Ke8 62. Bc5 Kd8 63. Kf7 Kc7 64. e6 Kc6 65. Bb4 Kb6 66. e7 Kc6 67. e8Q+ Kd5 68. Qe6# 1-0

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.04.29"]
[Round "2"]
[White "Tikranian, Alik"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1844"]
[BlackElo "1591"]
[PlyCount "101"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. Qc2 Nc6 5. a3 d5 6. e5 Nd7 7. d4 Qb6 8. Be3 cxd4 9. cxd4 Be7 10. Nc3 f6 11. exf6 Bxf6 12. Rd1 a6 13. Bd3 Nf8 14. 0-0 Ne7 15. Bf4 Neg6 16. Bg3 Bd7 17. Rfe1 Kf7 18. Na4 Qd8 19. Nc5 Bc6 20. Qe2 Qe7 21. Rc1 Rc8 22. h4 Nxh4 23. Nxh4 Bxh4 24. Qh5+ Ng6 25. Bf5 Rce8 26. Bxe6+ Kf8 27. Re3 Bf6 28. Bxd5 Qd8 29. Bxc6 bxc6 30. Ne6+ Rxe6 31. Rxe6 Qxd4 32. Qc5+ Kf7 33. Rxc6 Re8 34. Qxd4 Bxd4 35. Rxa6 Bxb2 36. Rc7+ Kf8 37. a4 Ne5 38. Bxe5 Bxe5 39. Rc2 Bb8 40. g3 Kf7 41. Rac6 Re1+ 42. Kg2 Ra1 43. Rc8 Be5 44. Ra8 Bd4 45. a5 Kg6 46. a6 Ra5 47. Rd2 Bc3 48. Rd3 Be1 49. a7 Kf7 50. Rf3+ Kg6 51. Re8 1-0

[Event "NED-ch U15"]
[Site "Haarlem"]
[Date "2012.04.28"]
[Round "1"]
[White "Chang, Hawkie"]
[Black "Van Foreest, Lucas"]
[Result "0-1"]
[ECO "C46"]
[WhiteElo "1591"]
[BlackElo "1991"]
[PlyCount "49"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nge7 7. Qd2 0-0 8. h4 h5 9. g4 Ne5 10. Be2 hxg4 11. h5 d5 12. Bh6 c5 13. Bxg7 Kxg7 14. hxg6 Rh8 15. Rxh8 Qxh8 16. 0-0-0 cxd4 17. Qxd4 N7xg6 18. exd5 Qh6+ 19. Kb1 Qf4 20. Ne4 Bd7 21. Nc5 Qxd4 22. Rxd4 Bf5 23. Nxb7 Rc8 24. Rd2 Rh8 25. b3 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.04"]
[Round "9"]
[White "Chang, Hawkie"]
[Black "Dijkhuis, Sven"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1396"]
[BlackElo "1675"]
[PlyCount "118"]
[EventDate "2011.06.02"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. Be2 Kh8 14. 0-0 f5 15. Bf3 f4 16. Ncb4 Nb8 17. Qd3 a5 18. Nc2 Ba6 19. Rfd1 b4 20. Qd2 Bb7 21. cxb4 Nd7 22. bxa5 Rxa5 23. b4 Ra8 24. a4 Bxd5 25. Qxd5 Be7 26. a5 Nf6 27. Qd3 g5 28. Qe2 Qe8 29. a6 h5 30. h3 Qg6 31. g4 fxg3 32. fxg3 g4 33. hxg4 h4 34. Kg2 Nh5 35. Rh1 Nxg3 36. Qd3 Nxh1 37. Rxh1 Rac8 38. Ne3 Bg5 39. Nf5 Rfd8 40. b5 Qf7 41. Nxh4 Bxh4 42. Rxh4+ Kg8 43. Qd2 Rb8 44. Rh6 Qg7 45. Qd5+ Kf8 46. Qe6 Qg5 47. Rf6+ Kg7 48. Qf7+ Kh8 49. Rg6 Rd7 50. Qxd7 Qxg6 51. a7 Rf8 52. Qc6 Qf7 53. Qc3 Qxa7 54. Qb3 Qb6 55. Qe6 Qxb5 56. Qxd6 Qe8 57. g5 Qf7 58. Qh6+ Kg8 59. Qh3 Qf4 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.04"]
[Round "7"]
[White "Chang, Hawkie"]
[Black "Oerlemans, Gideon"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1396"]
[BlackElo "1343"]
[PlyCount "69"]
[EventDate "2011.06.02"]
[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. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. f4 d6 9. 0-0 Be6 10. Bxe6 fxe6 11. Kh1 e5 12. Nxc6 Bxe3 13. Nxe7+ Qxe7 14. f5 Qh4 15. Qf3 Bf4 16. g3 Qf6 17. gxf4 exf4 18. Qxf4 Rae8 19. Nd2 g6 20. Rg1 Kh8 21. Raf1 Qe7 22. Qg5 Qg7 23. h4 Re5 24. h5 Rf6 25. Rg2 h6 26. Qg4 g5 27. Nf3 Re7 28. Nd4 c5 29. Nc2 Qf7 30. b3 Qe8 31. Re1 d5 32. Rge2 Qc6 33. Qf3 dxe4 34. Rxe4 Kg7 35. Rxe7+ 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.04"]
[Round "8"]
[White "Franken, Floyd"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1158"]
[BlackElo "1396"]
[PlyCount "98"]
[EventDate "2011.06.02"]
[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 e6 3. Nc3 g6 4. Bb5 a6 5. Bc4 b5 6. Be2 Bb7 7. d4 cxd4 8. Nxd4 Bg7 9. 0-0 Ne7 10. a3 0-0 11. Bf3 Qc7 12. Bg5 Nbc6 13. Nxc6 Nxc6 14. Qd3 Ne5 15. Qe3 Nc4 16. Qe1 Nxb2 17. Ne2 Qxc2 18. Rc1 Qd3 19. Qd2 Qxd2 20. Bxd2 Nc4 21. Bb4 Rfe8 22. Rfd1 Bc6 23. Re1 Bb2 24. Rcd1 Bxa3 25. Bxa3 Nxa3 26. Ra1 Nc2 27. Rac1 Nxe1 28. Rxe1 a5 29. Nd4 a4 30. Rc1 Rec8 31. e5 Bxf3 32. Rxc8+ Rxc8 33. gxf3 Rc5 34. Kg2 a3 35. Nb3 Rxe5 36. f4 Re1 37. Kf3 a2 38. h4 a1Q 39. Nxa1 Rxa1 40. h5 b4 41. hxg6 hxg6 42. f5 b3 43. fxe6 dxe6 44. Ke3 b2 45. f4 b1Q 46. f5 Ra4 47. fxe6 Qb3+ 48. Ke2 Ra2+ 49. Ke1 Qb1# 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.03"]
[Round "5"]
[White "Chang, Hawkie"]
[Black "Baselmans, Luuk"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1396"]
[BlackElo "1369"]
[PlyCount "119"]
[EventDate "2011.06.02"]
[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. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Qe5 8. Nxc6 dxc6 9. Bxc5 cxb5 10. Qd4 Nc6 11. Qxe5+ Nxe5 12. 0-0 Be6 13. Rd1 Nd7 14. Be3 0-0-0 15. a4 Kb8 16. axb5 Nb6 17. Na3 Bb3 18. Rd4 Rxd4 19. Bxd4 f6 20. e5 fxe5 21. Bxe5 Na4 22. Nc4 Bxc4 23. Rxa4 Re8 24. Rxc4 Rxe5 25. g3 Rxb5 26. b4 a6 27. Re4 c6 28. Re8+ Ka7 29. Re7 Rg5 30. h4 Rg4 31. Kg2 h5 32. f3 Rg6 33. Re5 Rh6 34. Rg5 Rh7 35. Kh3 b5 36. g4 hxg4+ 37. Kxg4 Kb6 38. h5 a5 39. bxa5+ Kxa5 40. f4 Ka4 41. Rc5 Rh6 42. Kg5 b4 43. cxb4 Kxb4 44. Re5 c5 45. Re7 c4 46. Rxg7 Rc6 47. Re7 c3 48. Re1 c2 49. Rc1 Kb3 50. h6 Kb2 51. h7 Rc8 52. Rxc2+ Kxc2 53. f5 Kd3 54. Kg6 Ke4 55. f6 Ke5 56. Kg7 Ke6 57. f7 Ke7 58. f8Q+ Rxf8 59. h8Q Rxh8 60. Kxh8 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.03"]
[Round "6"]
[White "Corstjens, Rolf"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1677"]
[BlackElo "1396"]
[PlyCount "175"]
[EventDate "2011.06.02"]
[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 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. f3 a6 7. Bd3 b5 8. a3 Bc5 9. Nb3 Qc7 10. Bg5 Be7 11. Qd2 Bb7 12. 0-0 d6 13. Rad1 Nbd7 14. Kh1 Rc8 15. Nd4 h6 16. Bh4 Nxe4 17. Nxe4 Bxh4 18. Bxb5 Bxe4 19. Bxd7+ Qxd7 20. fxe4 Be7 21. Nf3 Rd8 22. Qc3 f6 23. Nh4 Kf7 24. Qb3 Rb8 25. Qa2 Qb5 26. b4 Rbc8 27. Nf5 Rc6 28. Nd4 Qc4 29. Qb1 Rc7 30. Rd2 Rhc8 31. Qd1 e5 32. Nf5 Qxe4 33. Nxe7 Kxe7 34. Rxd6 Qxc2 35. Rxa6 Qxd1 36. Rxd1 Rc1 37. Rad6 Ra8 38. Rd7+ Ke6 39. Rxc1 Kxd7 40. Ra1 Ra7 41. a4 Kc6 42. b5+ Kb6 43. g4 g6 44. Rf1 Rf7 45. Kg2 Ka5 46. Ra1 f5 47. gxf5 gxf5 48. Kf3 h5 49. h4 Rc7 50. Re1 Rc3+ 51. Kg2 Rc5 52. Ra1 e4 53. Kg3 Rd5 54. Kf4 Rc5 55. Rb1 Rc7 56. Kxf5 e3 57. b6 Rb7 58. Re1 Rxb6 59. Rxe3 Kxa4 60. Re5 Kb4 61. Kg5 Kc4 62. Kxh5 Kd4 63. Re8 Kd5 64. Kg5 Rb1 65. h5 Rg1+ 66. Kh6 Kd6 67. Kh7 Kd7 68. Re2 Kd6 69. h6 Kd7 70. Kh8 Kd8 71. Re5 Kd7 72. Kh7 Kd6 73. Re8 Rg2 74. Rg8 Rf2 75. Rg7 Ke6 76. Kg8 Rd2 77. Rf7 Rg2+ 78. Kf8 Rc2 79. h7 Rh2 80. Kg8 Rg2+ 81. Rg7 Rc2 82. h8Q Rc8+ 83. Kh7 Rxh8+ 84. Kxh8 Kf6 85. Rd7 Ke6 86. Rd1 Ke5 87. Kg7 Ke4 88. Kf7 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.03"]
[Round "4"]
[White "Kuiper, Adrian"]
[Black "Chang, Hawkie"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1456"]
[BlackElo "1396"]
[PlyCount "104"]
[EventDate "2011.06.02"]
[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 Bf5 4. a3 Nf6 5. Bg2 g6 6. 0-0 Bg7 7. Bf4 0-0 8. c4 dxc4 9. Nc3 Bg4 10. d5 Na5 11. Ne5 Nb3 12. Rb1 Bd7 13. Nxc4 Nc5 14. b4 Na6 15. e4 c5 16. b5 Nc7 17. e5 Ng4 18. h3 Nh6 19. Bxh6 Bxh6 20. d6 Ne6 21. Bxb7 Rb8 22. Bg2 Nd4 23. a4 Bf5 24. Rb2 Re8 25. Re1 Qd7 26. Ne2 Bxh3 27. Nxd4 Bxg2 28. Kxg2 cxd4 29. Qxd4 exd6 30. Qxd6 Qxd6 31. Nxd6 Re6 32. Rc2 Bf8 33. Rc8 Rxc8 34. Nxc8 Bc5 35. Rd1 Rxe5 36. Nd6 Re2 37. Nb7 Rxf2+ 38. Kh3 Bb6 39. a5 Bc7 40. Rc1 Be5 41. Re1 Rf5 42. a6 Bd4 43. Rd1 Bb6 44. Nd6 Rf6 45. Nc8 Bc5 46. Rd7 Kg7 47. Nxa7 Rb6 48. Rc7 Bd4 49. Rc6 Rb8 50. Rc8 Rb6 51. Nc6 Rxb5 52. Nxd4 Rb6 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.02"]
[Round "2"]
[White "Bolleman, Danilo"]
[Black "Chang, Hawkie"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1252"]
[BlackElo "1396"]
[PlyCount "82"]
[EventDate "2011.06.02"]
[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 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qc4 Nf6 6. Bg5 Be7 7. Be2 a6 8. Nd4 Nxd4 9. Qxd4 b5 10. e5 Nd5 11. Bxe7 Qxe7 12. Bf3 Bb7 13. 0-0 0-0 14. Qd2 Rab8 15. Qd3 Rfc8 16. Be4 g6 17. c3 Qg5 18. Bxd5 Bxd5 19. Qg3 Qxg3 20. fxg3 b4 21. Rf2 a5 22. a3 Be4 23. Nd2 Bd5 24. axb4 axb4 25. cxb4 Rxb4 26. Nf3 Rcb8 27. Rb1 Be4 28. Rd1 R8b7 29. Ng5 Bf5 30. h3 h6 31. g4 Bxg4 32. hxg4 hxg5 33. Rdf1 d6 34. exd6 Rd4 35. Ra1 Rxd6 36. Ra8+ Kg7 37. Rf3 Rd1+ 38. Kh2 Rd2 39. Rh3 Rbxb2 40. Rhh8 Rxg2+ 41. Kh3 Rh2+ 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.02"]
[Round "1"]
[White "Chang, Hawkie"]
[Black "Nguyen, Kevin"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "1396"]
[BlackElo "1476"]
[PlyCount "70"]
[EventDate "2011.06.02"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Nc6 7. Be3 Bg7 8. f3 0-0 9. g4 Qb6 10. Rb1 Nxe4 11. Nxc6 Nxc3 12. Bxb6 Nxd1 13. Nxe7+ Kh8 14. Kxd1 axb6 15. Nxc8 Rfxc8 16. a3 Ra5 17. c3 Rd5+ 18. Kc2 Re5 19. Rhe1 Rce8 20. Kd1 Bh6 21. c4 d5 22. b3 dxc4 23. bxc4 Rd8+ 24. Kc2 Rd2+ 25. Kc3 Rexe2 26. Rxe2 Rxe2 27. Rd1 Re3+ 28. Rd3 Kg7 29. h4 Rxd3+ 30. Kxd3 Bf4 31. Ke4 Bd6 32. a4 Kf6 33. f4 Ke6 34. Kf3 f5 35. g5 Kd7 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2011.06.02"]
[Round "3"]
[White "Chang, Hawkie"]
[Black "Warmerdam, Max"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1396"]
[BlackElo "1302"]
[PlyCount "55"]
[EventDate "2011.06.02"]
[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. d4 exd4 4. Nxd4 Be7 5. Bc4 Nf6 6. Nc3 Ne5 7. Bb3 0-0 8. Bf4 d6 9. Qe2 Bg4 10. f3 Bd7 11. 0-0-0 Ng6 12. Bg5 Nxe4 13. Bxe7 Nxc3 14. Qe1 Qxe7 15. Qxc3 c5 16. Bxf7+ Rxf7 17. Nb3 Qg5+ 18. Rd2 Nh4 19. Kb1 Qf6 20. Qxf6 Rxf6 21. Nxc5 dxc5 22. Rxd7 Nxg2 23. Rxb7 Rxf3 24. Rg1 Raf8 25. a3 Ne3 26. Rgxg7+ Kh8 27. Rxh7+ Kg8 28. Rbg7# 1-0

