[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.10"]
[Round "12"]
[White "Droogh, Piet Hein"]
[Black "Lu, Ting Ting"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "962"]
[BlackElo "1120"]
[PlyCount "103"]
[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 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. 0-0 Qg6 9. Nd2 b6 10. f3 d6 11. Qe2 Be6 12. Bb3 Rad8 13. f4 Qf6 14. Nxe6 Bxe3+ 15. Qxe3 fxe6 16. f5 d5 17. fxe6 Qxe6 18. Rae1 Qg6 19. Rxf8+ Kxf8 20. exd5 Nxd5 21. Qf3+ Qf7 22. Qxf7+ Kxf7 23. Nf3 Na5 24. Bc2 g6 25. Rd1 Nc6 26. Bb3 Ke6 27. Ng5+ Kf5 28. Rxd5+ Rxd5 29. Bxd5 Kxg5 30. Bxc6 Kf6 31. Kf2 Ke5 32. Ke3 Kd6 33. Bf3 Ke5 34. b4 Kd6 35. Kd4 h6 36. a4 a6 37. Be2 a5 38. b5 c6 39. c4 c5+ 40. Ke4 Ke6 41. Bd3 Kf6 42. Kd5 Ke7 43. Kc6 Kd8 44. Kxb6 g5 45. Kxc5 Kc7 46. b6+ Kb7 47. Be4+ Kb8 48. Kb5 h5 49. c5 g4 50. c6 h4 51. c7+ Kc8 52. Kc6 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 "2013.08.08"]
[Round "8"]
[White "Warmerdam, Ivo"]
[Black "Droogh, Piet Hein"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1343"]
[BlackElo "962"]
[PlyCount "33"]
[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 d6 2. d4 g6 3. Nf3 Bg7 4. Be3 Nf6 5. Nc3 Nbd7 6. h3 0-0 7. Qd2 c6 8. 0-0-0 b5 9. e5 Ne8 10. Bh6 Qc7 11. Bxg7 Nxg7 12. g4 dxe5 13. Qh6 exd4 14. Ng5 Nf6 15. Nce4 Qf4+ 16. Kb1 Ne6 17. Nxf6+ 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "7"]
[White "Droogh, Piet Hein"]
[Black "Steenman, Tomas"]
[Result "1/2-1/2"]
[ECO "C62"]
[WhiteElo "962"]
[BlackElo "1292"]
[PlyCount "92"]
[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. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Nxd4 Bd7 7. Nxc6 Bxc6 8. Qd4 Bxb5 9. Nxb5 c6 10. Nc3 d5 11. exd5 Nxd5 12. Nxd5 Qxd5 13. Qxd5 cxd5 14. 0-0 Be7 15. Rd1 Rd8 16. Be3 b6 17. Rd3 0-0 18. Rad1 Bf6 19. c3 Rfe8 20. Rxd5 Rxd5 21. Rxd5 h6 22. g3 Rd8 23. Rxd8+ Bxd8 24. f4 f5 25. Kf2 Kf7 26. Bd4 g6 27. a4 Ke6 28. Ke3 Kd5 29. Kd3 Be7 30. a5 Bc5 31. axb6 axb6 32. Bxc5 Kxc5 33. b4+ Kd5 34. c4+ Kd6 35. Kd4 g5 36. fxg5 hxg5 37. c5+ bxc5+ 38. bxc5+ Ke6 39. c6 Kd6 40. c7 Kxc7 41. Ke5 f4 42. gxf4 gxf4 43. Kxf4 Kd7 44. Kg5 Ke7 45. Kg6 Kf8 46. Kh7 Kf7 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "6"]
[White "Geene, Ilse"]
[Black "Droogh, Piet Hein"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "985"]
[BlackElo "962"]
[PlyCount "82"]
[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 d6 2. Nf3 g6 3. d4 Bg7 4. Bc4 Nf6 5. Ng5 0-0 6. Nc3 Bd7 7. 0-0 c6 8. Be3 e6 9. Nf3 d5 10. exd5 cxd5 11. Bb5 Qe7 12. Bxd7 Qxd7 13. Ne5 Qc8 14. Qf3 Nbd7 15. Bf4 Nxe5 16. Bxe5 Nd7 17. Bd6 Rd8 18. Rac1 a6 19. Be7 Re8 20. Bg5 Bxd4 21. Na4 Bg7 22. c3 Qc6 23. b3 Nc5 24. Nb2 Ne4 25. c4 Nxg5 26. Qe2 Qd6 27. Rc2 d4 28. Rd2 Rad8 29. h3 e5 30. Rfd1 Qc6 31. Rd3 Ne4 32. Qg4 Nc3 33. R1d2 e4 34. Rg3 d3 35. Re3 Ne2+ 36. Kf1 Bxb2 37. Rd1 Nc3 38. Rd2 Bc1 39. Rdxd3 exd3 40. Rxe8+ Rxe8 41. Qf3 d2 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "5"]
[White "Vitharana, Annelies"]
[Black "Droogh, Piet Hein"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1213"]
[BlackElo "962"]
[PlyCount "146"]
[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. e5 Ne4 7. cxd4 Bb4+ 8. Bd2 f6 9. 0-0 Nxd2 10. Nbxd2 fxe5 11. dxe5 Na5 12. a3 Bxd2 13. Nxd2 Ke7 14. Qg4 g6 15. Qf4 Qf8 16. Qg5+ Ke8 17. Rfe1 Nxc4 18. Nxc4 Kf7 19. Re3 Kg7 20. Rf3 Qd8 21. Qf4 Rf8 22. Qd4 Rxf3 23. gxf3 Qg5+ 24. Kf1 Qf5 25. Kg2 b6 26. Rd1 Qg5+ 27. Qg4 Qxg4+ 28. fxg4 Bb7+ 29. Kg1 Rd8 30. f4 Bf3 31. Rd2 Bxg4 32. Kf2 h6 33. h4 Kf7 34. Kg3 Bf5 35. Ne3 Ke6 36. b4 Be4 37. Kg4 Rf8 38. Rd1 Bf5+ 39. Nxf5 Rxf5 40. b5 d6 41. exd6 cxd6 42. Re1+ Kd7 43. Rd1 Rxb5 44. Kf3 Rb3+ 45. Ke4 Rxa3 46. Rg1 Ra4+ 47. Ke3 Ra3+ 48. Ke4 Rh3 49. Rxg6 Rxh4 50. Rg7+ Kc6 51. Rxa7 b5 52. Ra6+ Kc5 53. Ra5 Kc4 54. Ra6 d5+ 55. Ke5 Rh5+ 56. f5 b4 57. Ke6 b3 58. f6 Rh1 59. f7 Rf1 60. Ke7 b2 61. Rb6 b1Q 62. Rxb1 Rf2 63. f8Q Rxf8 64. Kxf8 d4 65. Kg7 h5 66. Rh1 Kc3 67. Rxh5 d3 68. Rc5+ Kd2 69. Kf6 Kd1 70. Ke5 d2 71. Ke4 Ke2 72. Rc2 Ke1 73. Rxd2 Kxd2 1/2-1/2

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "2"]
[White "Bahadoer, Meri"]
[Black "Droogh, Piet Hein"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "730"]
[BlackElo "962"]
[PlyCount "90"]
[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 Nxe4 8. 0-0 Bxd2 9. Nbxd2 Nxd2 10. Qxd2 0-0 11. d5 Ne7 12. h3 d6 13. Qg5 Ng6 14. Qd2 Qf6 15. Rae1 Bxh3 16. gxh3 Qxf3 17. Re3 Qf5 18. Rg3 Ne5 19. Bd3 Qf6 20. Bc2 Nf3+ 21. Rxf3 Qxf3 22. Qg5 h6 23. Qh4 Qxd5 24. Bb3 Qg5+ 25. Qxg5 hxg5 26. Kh2 Rfe8 27. f4 gxf4 28. Rxf4 Re7 29. Bd5 c6 30. Bf3 Rae8 31. Rb4 a5 32. Ra4 Re5 33. a3 g6 34. b4 axb4 35. axb4 b5 36. Ra6 c5 37. bxc5 dxc5 38. Ra1 b4 39. Kg2 c4 40. Bd1 c3 41. Rc1 Re3 42. Bb3 Re2+ 43. Kf3 Rb2 44. Bc4 Rc8 45. Bd5 b3 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "4"]
[White "Droogh, Piet Hein"]
[Black "Bourgonjen, Ruben"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "962"]
[BlackElo "1354"]
[PlyCount "78"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 0-0 9. 0-0 Nc6 10. Qd2 Qc7 11. a3 b5 12. Be2 Be6 13. Rad1 Rfd8 14. Ng5 Bg4 15. f4 Bxe2 16. Qxe2 Na5 17. Nd5 Nxd5 18. Rxd5 Bxg5 19. fxg5 Nc4 20. Bc1 Rac8 21. Qf2 Qb6 22. Qxb6 Nxb6 23. Rd2 Rc4 24. Rfd1 Rc6 25. b3 Kf8 26. Bb2 f6 27. gxf6 gxf6 28. Kf2 Ke7 29. Kf3 Ke6 30. Kg4 Rg8+ 31. Kh5 Rg6 32. g4 Nd7 33. h4 Nc5 34. Re1 Nb7 35. g5 fxg5 36. hxg5 Nd8 37. Rf2 Nf7 38. Rf5 Rxc2 39. Ref1 Nxg5 0-1

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "3"]
[White "Droogh, Piet Hein"]
[Black "Post, Jesper"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "962"]
[BlackElo "1161"]
[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. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. 0-0 d6 6. d3 Bg4 7. h3 Be6 8. Bb3 h6 9. Qe2 0-0 10. Be3 Bb6 11. Na4 Qd7 12. Nxb6 axb6 13. Bxe6 fxe6 14. c3 d5 15. exd5 exd5 16. d4 e4 17. Nd2 Na5 18. Rfe1 b5 19. f3 Nc4 20. Nxc4 bxc4 21. b3 b5 22. a4 exf3 23. Qxf3 Ne4 24. Qh5 Nxc3 25. axb5 Rxa1 26. Rxa1 Ne2+ 27. Qxe2 Qxb5 28. bxc4 dxc4 29. Rc1 Re8 30. Qd2 Qb3 31. Bf2 Rd8 32. Qc3 Ra8 33. Qxc4+ Qxc4 34. Rxc4 Ra1+ 35. Kh2 Rf1 36. Bg3 Rf8 37. Rxc7 Rd8 38. Be5 g5 39. Rg7+ Kf8 40. Rh7 1-0

[Event "NED-ch U12 op"]
[Site "Borne"]
[Date "2013.08.05"]
[Round "1"]
[White "Droogh, Piet Hein"]
[Black "Van Roon, Sjoerd"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "962"]
[BlackElo "1378"]
[PlyCount "66"]
[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. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nc6 5. a3 Bg4 6. h3 Bh5 7. Be2 0-0-0 8. d3 e5 9. Ng5 Bg6 10. Bh5 Nh6 11. Qf3 Nd4 12. Qd1 Bxh5 13. Qxh5 Nxc2+ 14. Kd2 Nxa1 15. Nxf7 Nxf7 16. Qxf7 Nb3+ 17. Qxb3 Kb8 18. Kc2 Bc5 19. Rf1 Rhf8 20. Bg5 Rde8 21. Kb1 Bxf2 22. Ne4 Qb6 23. Qc2 Bd4 24. Rxf8 Rxf8 25. Be7 Rf7 26. Bb4 Rf1+ 27. Ka2 a5 28. Bc5 Qe6+ 29. Qb3 Qxb3+ 30. Kxb3 Bxc5 31. Nxc5 Kc8 32. Kc4 Rf2 33. Kd5 Rxb2 0-1

