[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.05.04"]
[Round "8"]
[White "Postema, Yorick"]
[Black "Looijer, Dave"]
[Result "1-0"]
[ECO "A21"]
[BlackElo "1938"]
[PlyCount "121"]
[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. c4 e5 2. Nc3 f5 3. d3 Nf6 4. g3 Bb4 5. Qb3 Bxc3+ 6. Qxc3 Nc6 7. Bg2 d6 8. b4 0-0 9. Bd2 h6 10. Nf3 a5 11. b5 Ne7 12. 0-0 g5 13. Rfc1 g4 14. Nh4 Kh7 15. d4 e4 16. Qe3 Neg8 17. d5 Bd7 18. Qd4 Qe7 19. b6 cxb6 20. Qxb6 Nh5 21. e3 Ngf6 22. Rab1 Rfb8 23. Bf1 Kg7 24. Qd4 Kf7 25. Rb6 Ra6 26. Rxa6 bxa6 27. Bxa5 Nh7 28. c5 dxc5 29. Rxc5 Rb1 30. d6 Qe6 31. Rxf5+ N5f6 32. Kg2 Rxf1 33. Kxf1 Qxa2 34. Re5 Qb1+ 35. Kg2 Bb5 36. Rxb5 Qxb5 37. Bc3 a5 38. Qa7+ Qd7 39. Qxd7+ Nxd7 40. Bxa5 Ke6 41. Bb4 Ndf8 42. h3 h5 43. hxg4 hxg4 44. Kf1 Nf6 45. Ng2 Kd5 46. Ke2 Kc4 47. Ba5 Kc5 48. Bd8 N8d7 49. Be7 Ne8 50. Kd2 Nxd6 51. Kc3 Ne5 52. Bxd6+ Kxd6 53. Kd4 Nd3 54. Kxe4 Nxf2+ 55. Kf5 Kd5 56. Nf4+ Kc4 57. e4 Kd4 58. e5 Ne4 59. Nh5 Nc5 60. e6 Ne4 61. Kxg4 1-0

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.05.03"]
[Round "7"]
[White "Van Oostenbrugge, Rijk"]
[Black "Postema, Yorick"]
[Result "1/2-1/2"]
[ECO "E65"]
[PlyCount "99"]
[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. d4 c5 2. d5 d6 3. c4 g6 4. Nc3 Bg7 5. Nf3 Nf6 6. g3 0-0 7. Bg2 Nbd7 8. 0-0 Ng4 9. h3 Nge5 10. Nd2 Nb6 11. Qb3 Ned7 12. Re1 Nf6 13. e4 e6 14. a4 exd5 15. cxd5 Re8 16. a5 Nbd7 17. Nc4 Ne5 18. Nxe5 Rxe5 19. Bf4 Re7 20. Nb5 Ne8 21. h4 b6 22. a6 h6 23. Ra2 Qd7 24. Kh2 f6 25. Qc4 g5 26. hxg5 hxg5 27. Bd2 Bh8 28. Rh1 Rh7+ 29. Kg1 Rxh1+ 30. Kxh1 Qg4 31. Ra1 Bxa6 32. Qa4 Bc8 33. Nxa7 Qd7 34. Qxd7 Bxd7 35. Ra3 Kf7 36. Nb5 Rxa3 37. Nxa3 b5 38. Bf1 b4 39. Nc4 Ba4 40. Bc1 Bc2 41. Nd2 Nc7 42. g4 Ba4 43. Kg2 Bb5 44. Nc4 Bxc4 45. Bxc4 Bg7 46. Kf3 Ke7 47. Ke2 Bh6 48. Kd3 Na8 49. b3 Nc7 50. Bb2 1/2-1/2

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.05.02"]
[Round "6"]
[White "Postema, Yorick"]
[Black "Koster, Chiel"]
[Result "1-0"]
[ECO "A31"]
[PlyCount "45"]
[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. c4 Nf6 2. Nf3 c5 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nc6 6. a3 d6 7. Bg5 Be7 8. Nc3 Be6 9. e3 Nd7 10. Bxe7 Qxe7 11. Nb5 0-0 12. Qxd6 Qxd6 13. Nxd6 b6 14. Rd1 a6 15. Nc1 Na5 16. b4 Nc6 17. Be2 f5 18. Nd3 Ne7 19. 0-0 Nc8 20. Nb2 a5 21. Nb5 Ne7 22. Nc7 Rac8 23. Nxe6 1-0

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.05.01"]
[Round "5"]
[White "Mollema, Thomas"]
[Black "Postema, Yorick"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1961"]
[PlyCount "61"]
[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. c3 e6 3. d4 cxd4 4. cxd4 Nf6 5. e5 Nd5 6. Nf3 Qc7 7. Bd2 b6 8. Nc3 Nxc3 9. bxc3 d6 10. Bb5+ Bd7 11. Bd3 Nc6 12. Qe2 dxe5 13. dxe5 Be7 14. 0-0 0-0 15. Qe4 g6 16. Bh6 Rfe8 17. h4 Bf8 18. Bg5 Ne7 19. Nd4 Nd5 20. Rac1 Bg7 21. Rfe1 Bc8 22. Nb5 Qd7 23. Nd6 Rf8 24. Bb5 Qc7 25. c4 f5 26. Qf3 Bxe5 27. Nxc8 Raxc8 28. cxd5 Qd6 29. dxe6 Qxe6 30. Rxc8 Qxc8 31. Qd5+ 1-0

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.04.30"]
[Round "4"]
[White "Gieben, Stijn"]
[Black "Postema, Yorick"]
[Result "1-0"]
[ECO "B46"]
[WhiteElo "2030"]
[PlyCount "37"]
[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 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Be2 Bb4 7. Nxc6 bxc6 8. Qd4 Bxc3+ 9. Qxc3 Qf6 10. e5 Qg6 11. 0-0 Ne7 12. Qc5 Qe4 13. Bf3 Qa4 14. Bg5 Ng6 15. c4 Qc2 16. Bh5 Qf5 17. f4 f6 18. g4 Qc2 19. exf6 1-0

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.04.29"]
[Round "3"]
[White "Postema, Yorick"]
[Black "Keuning, Selwin"]
[Result "1-0"]
[ECO "E12"]
[PlyCount "69"]
[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. c4 Nf6 2. Nf3 e6 3. Nc3 c5 4. d4 b6 5. a3 Bb7 6. d5 d6 7. e4 Be7 8. Bd3 0-0 9. 0-0 e5 10. b4 Nbd7 11. b5 a6 12. Bd2 Ne8 13. a4 g6 14. Bh6 Ng7 15. Qc2 Nf6 16. h3 Nfe8 17. bxa6 Bxa6 18. Rfb1 f5 19. Qb3 fxe4 20. Nxe4 Bc8 21. Qxb6 Qxb6 22. Rxb6 Bxh3 23. Nxe5 dxe5 24. gxh3 Rf3 25. Be2 Rxh3 26. Bxg7 Nxg7 27. Rb5 Nf5 28. Rb7 Rh4 29. f3 Bd8 30. Kg2 h5 31. Rg1 Kf8 32. Nxc5 Nd4 33. Bd3 g5 34. Nd7+ Ke8 35. Bg6+ 1-0

[Event "NED-ch U17"]
[Site "Sneek"]
[Date "2013.04.27"]
[Round "1"]
[White "Postema, Yorick"]
[Black "Tikranian, Alik"]
[Result "0-1"]
[ECO "A34"]
[BlackElo "1969"]
[PlyCount "82"]
[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. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d3 d5 7. cxd5 Nxd5 8. Bd2 Rb8 9. Qb3 Nb6 10. Ne4 Nd4 11. Nxd4 cxd4 12. Rc1 0-0 13. Bf4 Be6 14. Qa3 Rc8 15. Rxc8 Nxc8 16. 0-0 Bd5 17. Qc5 Bxa2 18. Nd2 b6 19. Qc6 e5 20. b3 exf4 21. Qa4 fxg3 22. hxg3 Bxb3 23. Nxb3 Re8 24. Bf3 h5 25. Kg2 Re7 26. Rc1 Nd6 27. Nxd4 Rc7 28. Rxc7 Qxc7 29. Nb5 Qd7 30. Nc3 Qxa4 31. Nxa4 Bd4 32. e3 b5 33. exd4 bxa4 34. Bd5 Nb5 35. Kf3 Nc3 36. Bc4 a3 37. d5 Kf8 38. Ke3 a2 39. Bxa2 Nxa2 40. Kd4 Ke7 41. Kc5 Kd7 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.15"]
[Round "8"]
[White "Postema, Yorick"]
[Black "De Feijter, Bas"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "58"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. h3 0-0 7. Bg5 Be6 8. Bb3 h6 9. Bh4 Bb4 10. 0-0 Re8 11. Ne2 Qe7 12. c3 Ba5 13. Qc2 Rad8 14. d4 exd4 15. cxd4 Bxb3 16. axb3 Qxe4 17. Qxe4 Rxe4 18. Ng3 Ree8 19. d5 g5 20. Bxg5 hxg5 21. dxc6 Bb6 22. cxb7 Rb8 23. Nxg5 Rxb7 24. Rfe1 Rxe1+ 25. Rxe1 Kf8 26. N3e4 Bd4 27. Nxf6 Bxf6 28. Nh7+ Kg7 29. Nxf6 Kxf6 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.15"]
[Round "9"]
[White "Van Ark, Robert"]
[Black "Postema, Yorick"]
[Result "1/2-1/2"]
[ECO "B44"]
[PlyCount "62"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nc6 6. Bc4 Qc7 7. Bb3 Nf6 8. Nc3 Bb4 9. Nxc6 bxc6 10. Bd2 0-0 11. Qe2 d5 12. 0-0 Bxc3 13. Bxc3 Nxe4 14. Bd4 c5 15. f3 cxd4 16. fxe4 dxe4 17. Qxe4 e5 18. Qxa8 Bb7 19. Bxf7+ Qxf7 20. Rxf7 Bxa8 21. Rxf8+ Kxf8 22. c4 Ke7 23. Kf2 Kd6 24. b4 Bb7 25. Rd1 Bc6 26. g3 g6 27. Ke2 h5 28. h4 Ke6 29. Kd3 Kf5 30. Ke2 Kg4 31. Kf2 Kf5 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.15"]
[Round "7"]
[White "Van der Poel, Peter Alexander"]
[Black "Postema, Yorick"]
[Result "1-0"]
[ECO "B44"]
[PlyCount "77"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Bg3 a6 8. N5c3 Nf6 9. Nd2 Be7 10. Bc4 Qc7 11. Nd5 Nxd5 12. Bxd5 Nb4 13. Bb3 Bd7 14. 0-0 0-0 15. c3 Nd3 16. Qc2 Nc5 17. Bd5 Bb5 18. c4 Bc6 19. Bxc6 Qxc6 20. b3 Bg5 21. Rfe1 Bxd2 22. Qxd2 Nxe4 23. Qe3 Nxg3 24. Qxg3 Rad8 25. Rad1 Rfe8 26. Qh4 a5 27. Rxe5 Rxe5 28. Qxd8+ Re8 29. Qxa5 Qe4 30. h3 Qc6 31. Qd5 Qa6 32. a4 Qb6 33. Qb5 Qxb5 34. axb5 Re6 35. c5 Kf8 36. c6 bxc6 37. b6 d5 38. b7 Re8 39. Ra1 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.14"]
[Round "4"]
[White "Postema, Yorick"]
[Black "Bolleman, Danilo"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "7"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Qh5 Nc6 4. Qxf7# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.14"]
[Round "6"]
[White "Postema, Yorick"]
[Black "Geene, Joris"]
[Result "1/2-1/2"]
[ECO "C50"]
[BlackElo "1600"]
[PlyCount "28"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 d6 6. h3 Be6 7. Bb3 Qd7 8. Bg5 0-0-0 9. Qd2 Rhe8 10. Be3 Bb6 11. Ba4 Ba5 12. 0-0-0 a6 13. Kb1 h6 14. Qe1 Re7 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.13"]
[Round "3"]
[White "Dijkhuis, Sven"]
[Black "Postema, Yorick"]
[Result "1-0"]
[ECO "B44"]
[PlyCount "55"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. Bc4 e6 6. 0-0 Qc7 7. Nc3 Nf6 8. Bg5 Be7 9. Bb3 d6 10. Qd2 Bd7 11. Rad1 h6 12. Bh4 Nxe4 13. Nxe4 Bxh4 14. Nxc6 Bxc6 15. Nxd6+ Ke7 16. Qb4 Kf6 17. Qxh4+ g5 18. Qd4+ e5 19. Ne4+ Kf5 20. Ng3+ Kf6 21. Qc4 Rhf8 22. Qc5 Rad8 23. Rxd8 Rxd8 24. h3 b6 25. Qc3 Qb7 26. Re1 Re8 27. Qd3 e4 28. Qd6+ 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.13"]
[Round "1"]
[White "Gerlagh, Joris"]
[Black "Postema, Yorick"]
[Result "1/2-1/2"]
[ECO "E10"]
[PlyCount "72"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. c4 d6 4. Nc3 e6 5. e4 e5 6. Nf3 Be7 7. Be2 Bd7 8. Bd2 Na6 9. Qb1 Nc7 10. b3 a6 11. Qc2 b5 12. 0-0 Rb8 13. Rfb1 b4 14. Nd1 0-0 15. a3 a5 16. axb4 axb4 17. Ra2 Ra8 18. Rba1 Rxa2 19. Rxa2 Qb8 20. Bd3 Qb7 21. Qb1 Ra8 22. Qa1 Ra6 23. Ne1 Qa7 24. Rxa6 Qxa6 25. Qxa6 Nxa6 26. f4 Ne8 27. fxe5 dxe5 28. Nf3 f6 29. Kf2 Nd6 30. Bc2 Kf7 31. Ne3 g6 32. h3 h5 33. Bb1 Nb7 34. Bc1 Bd8 35. Bb2 Na5 36. Bc2 Nc7 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2010.05.13"]
[Round "2"]
[White "Postema, Yorick"]
[Black "Tikranian, Alik"]
[Result "1/2-1/2"]
[ECO "B21"]
[PlyCount "98"]
[EventDate "2010.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 Bg4 6. h3 Bh5 7. Be2 e5 8. Be3 Nf6 9. 0-0 Be7 10. Rc1 0-0 11. Nb5 Nc6 12. Bg5 Nxe4 13. Bxe7 Qxe7 14. Re1 Rad8 15. Bd3 Ng5 16. Be2 Nxf3+ 17. Bxf3 Bxf3 18. Qxf3 a6 19. Nc3 Nd4 20. Qe4 Qg5 21. h4 Qg6 22. Qe3 Nc2 23. Nd5 Nxe3 24. Ne7+ Kh8 25. Nxg6+ fxg6 26. Rxe3 Rf7 27. Rec3 h6 28. Rd1 Re7 29. Rcd3 Red7 30. f3 d5 31. Kf2 d4 32. g3 Kg8 33. Re1 Re7 34. f4 e4 35. Rdd1 e3+ 36. Ke2 d3+ 37. Rxd3 Rxd3 38. Kxd3 Kf7 39. Rxe3 Rxe3+ 40. Kxe3 Kf6 41. Ke4 g5 42. b4 b5 43. a3 g6 44. Kf3 gxf4 45. Kxf4 g5+ 46. hxg5+ hxg5+ 47. Kg4 Kg6 48. Kf3 Kf5 49. g4+ Ke5 1/2-1/2

