[Event "Sneek FSB-ch"]
[Site "Sneek"]
[Date "2013.06.14"]
[Round "7"]
[White "Van der Zwaag, Bas"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B93"]
[BlackElo "2114"]
[PlyCount "62"]
[EventDate "2013.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[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. f4 Nbd7 7. Nf3 Qc7 8. Bd3 b5 9. 0-0 Bb7 10. Qe1 e6 11. Kh1 Be7 12. a3 Rc8 13. Qg3 h5 14. Nh4 Ng4 15. f5 Nde5 16. fxe6 fxe6 17. Bd2 Bf6 18. Rae1 Qe7 19. Rxf6 gxf6 20. Ne2 Kd7 21. Nf4 Rhg8 22. Rf1 Nxd3 23. cxd3 Ne5 24. Qe3 Rc2 25. Bc3 f5 26. Qb6 Kc8 27. Bxe5 dxe5 28. Nhg6 Rxg6 29. Nxg6 Qf6 30. exf5 Bxg2+ 31. Kg1 Bb7 0-1

[Event "Sneek FSB-ch"]
[Site "Sneek"]
[Date "2013.06.12"]
[Round "6"]
[White "Kamstra, Jippe"]
[Black "Hania, Joe"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2114"]
[PlyCount "61"]
[EventDate "2013.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 4. Bc4 Nc6 5. d3 Be7 6. h3 Nf6 7. Ng3 Na5 8. Bb3 Nxb3 9. axb3 Be6 10. Nf3 Bd5 11. 0-0 Bxf3 12. Qxf3 c6 13. Re1 Nd7 14. d4 f6 15. Bh6 0-0 16. Nf5 Rf7 17. Qg3 Bf8 18. Rad1 Kh8 19. Bd2 g6 20. Nh6 Bxh6 21. Bxh6 Qa5 22. Bd2 Qb6 23. dxe5 Nxe5 24. Rxe5 fxe5 25. Qxe5+ Kg8 26. Bc3 Qxf2+ 27. Kh1 Qf1+ 28. Rxf1 Rxf1+ 29. Kh2 Kf7 30. Qc7+ Ke6 31. Qxb7 1-0

[Event "Sneek FSB-ch"]
[Site "Sneek"]
[Date "2013.05.29"]
[Round "3"]
[White "Van Popta, Hette"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "B23"]
[BlackElo "2114"]
[PlyCount "37"]
[EventDate "2013.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. d3 Rb8 6. f4 g6 7. Nf3 Bg7 8. 0-0 d6 9. Kh1 Nf6 10. Qe1 0-0 11. Qh4 Nd7 12. e5 e6 13. Qxd8 Rxd8 14. exd6 Nf6 15. Ne5 Rxd6 16. Nc4 Rd8 17. Na4 Nd5 18. a3 Rb5 19. Bd2 1/2-1/2

[Event "Sneek FSB-ch"]
[Site "Sneek"]
[Date "2013.05.22"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Van der Meulen, Douwe"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2114"]
[PlyCount "69"]
[EventDate "2013.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. a3 Qc7 5. Bc4 a6 6. 0-0 Nge7 7. d3 g6 8. Bg5 Bg7 9. Qd2 0-0 10. Bh6 b5 11. Bxg7 Kxg7 12. Ba2 Bb7 13. Qg5 d6 14. Ne2 Ne5 15. Nxe5 dxe5 16. f4 f6 17. Qg3 c4 18. fxe5 fxe5 19. Kh1 Rac8 20. Ng1 Rcd8 21. Nf3 Nc6 22. Ng5 Bc8 23. dxc4 Nd4 24. cxb5 h6 25. b6 Qc5 26. b4 Qd6 27. Nf3 Nxf3 28. gxf3 Rf4 29. Qg1 Qf8 30. Qc5 Qf6 31. Qc7+ Kh8 32. Rad1 Rf8 33. Rd3 Rxe4 34. b7 Re2 35. bxc8Q 1-0

[Event "Sneek FSB-ch"]
[Site "Sneek"]
[Date "2013.05.15"]
[Round "1"]
[White "Ykema, Wim"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B50"]
[BlackElo "2114"]
[PlyCount "105"]
[EventDate "2013.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[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. Be2 Nf6 4. c3 Nc6 5. d4 Bg4 6. 0-0 e6 7. d5 exd5 8. exd5 Bxf3 9. Bxf3 Ne5 10. Re1 Be7 11. Bf4 Ng6 12. Qa4+ Qd7 13. Qxd7+ Kxd7 14. Bg3 h5 15. h3 h4 16. Bh2 Rae8 17. Na3 Bd8 18. Nc4 Bc7 19. Kf1 b5 20. Ne3 Ne5 21. Be2 c4 22. Rad1 Bb6 23. Nf5 g5 24. Nd4 Bxd4 25. Rxd4 Ng6 26. b3 Ne7 27. bxc4 Nf5 28. Bg4 Rxe1+ 29. Kxe1 Nxg4 30. Rxg4 Re8+ 31. Kd2 bxc4 32. Rxg5 Ne7 33. Rg4 Rb8 34. Kc2 Nxd5 35. Rxh4 Rg8 36. g3 Re8 37. Rd4 Nb6 38. Kd2 d5 39. h4 Ke6 40. g4 Na4 41. f4 f5 42. gxf5+ Kxf5 43. Rxd5+ Kg4 44. f5 Kf3 45. Be5 Rg8 46. f6 Rg2+ 47. Kc1 Ke4 48. Rd2 Rg1+ 49. Rd1 Rg2 50. Bd4 Nb2 51. Rd2 Nd3+ 52. Kc2 Ne1+ 53. Kd1 1-0

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.15"]
[Round "5"]
[White "Zagema, Jan Sybren"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "2106"]
[PlyCount "102"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nf6 5. f4 Ng4 6. Qd2 c6 7. Nf3 Nxe3 8. Qxe3 Nd7 9. Be2 Qb6 10. Nd1 Nf6 11. h3 Nh5 12. g4 Ng3 13. Rh2 Nxe2 14. Kxe2 h5 15. g5 Be6 16. c3 0-0-0 17. Ke1 Kb8 18. h4 Qc7 19. Nf2 Bc8 20. Nd3 b6 21. Rd1 Rhe8 22. Re2 Ba6 23. Red2 Bc4 24. b3 Be6 25. Nf2 Bc8 26. Rc1 e5 27. Re2 Ba6 28. c4 exd4 29. Nxd4 c5 30. Nb5 Bxb5 31. cxb5 d5 32. e5 Qd7 33. a4 Qe6 34. Rd2 f6 35. gxf6 Bxf6 36. Qg3 Be7 37. Rcd1 c4 38. Kf1 Bb4 39. Re2 Qf5 40. Qg5 Qxg5 41. hxg5 cxb3 42. Rd3 Rf8 43. Nh3 d4 44. Rb2 Ba3 45. Rbxb3 Bc1 46. Rf3 Be3 47. Ke2 Rc8 48. Rbxe3 dxe3 49. Rxe3 Rc4 50. e6 Kc7 51. Rd3 Re4+ 0-1

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.14"]
[Round "3"]
[White "De Boer, Richard"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "B06"]
[BlackElo "2106"]
[PlyCount "65"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nd7 5. Nf3 c6 6. Bc4 Nb6 7. Bb3 Nf6 8. 0-0 0-0 9. h3 c5 10. e5 Nh5 11. dxc5 dxc5 12. Qxd8 Rxd8 13. Be3 c4 14. Bxb6 axb6 15. Bxc4 Ng3 16. Rfd1 Bf5 17. Bb3 Bh6 18. Nd5 Rxd5 19. Rxd5 Ne2+ 20. Kf2 Nxf4 21. Rdd1 e6 22. Rd7 Rc8 23. Rad1 Nd5 24. c3 Be4 25. c4 Nb4 26. Rd8+ Rxd8 27. Rxd8+ Kg7 28. g4 Bc1 29. Ne1 Bxb2 30. Ke3 Nc6 31. Rd1 Bh1 32. Nf3 Bxf3 33. Kxf3 1/2-1/2

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.14"]
[Round "4"]
[White "Kamstra, Jippe"]
[Black "Maris, Ivo"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2106"]
[BlackElo "1924"]
[PlyCount "90"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. c4 Nc6 4. Nf3 e5 5. Nc3 f5 6. d3 d6 7. Rb1 h6 8. Bd2 a5 9. a3 Nf6 10. Qc1 g5 11. b4 axb4 12. axb4 e4 13. Ng1 Qe7 14. dxe4 fxe4 15. h4 g4 16. e3 Ne5 17. Qc2 Be6 18. Nge2 Bxc4 19. 0-0 Bd3 20. Qb3 Nc4 21. Bc1 0-0 22. Nf4 Qf7 23. Nxd3 exd3 24. Nd5 Nxd5 25. Qxc4 Nc3 26. Qxd3 c6 27. Rb2 Nb5 28. Rd2 Bc3 29. Rc2 Qf6 30. Bd2 Be5 31. Rc4 h5 32. Rc2 Ra3 33. Qc4+ Kh8 34. Bc1 Ra1 35. Qb3 Rfa8 36. f4 gxf3 37. Rxf3 Qg6 38. Kf2 d5 39. Bb2 Bxb2 40. Qxb2+ d4 41. exd4 Qe4 42. Rc1 R1a2 43. Qxa2 Rxa2+ 44. Kg1 Qxd4+ 45. Kh1 Rxg2 0-1

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.14"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Rusev, Krasimir"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2106"]
[BlackElo "2537"]
[PlyCount "62"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. g3 c5 2. Bg2 Nc6 3. Nf3 g6 4. c3 e5 5. d3 Bg7 6. 0-0 Nge7 7. e4 d6 8. Nbd2 0-0 9. Nc4 h6 10. Ne1 Be6 11. Ne3 d5 12. exd5 Nxd5 13. Qf3 Nb6 14. Qe2 Qd7 15. a4 Na5 16. b4 cxb4 17. cxb4 Nb3 18. Rb1 Nxa4 19. Rxb3 Bxb3 20. Ng4 h5 21. Ne3 Rac8 22. Nf3 Rfd8 23. Nc4 Nc3 24. Qe3 Bxc4 25. dxc4 Rxc4 26. Kh1 e4 27. Ng5 b5 28. Bh3 Qe7 29. Re1 Nd5 30. Qa3 Qxb4 31. Qxb4 Nxb4 0-1

[Event "Waling Dijkstra Gr-A"]
[Site "Leeuwarden"]
[Date "2009.11.13"]
[Round "1"]
[White "De Jong, Sebastiaan"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "D78"]
[BlackElo "2106"]
[PlyCount "78"]
[EventDate "2009.11.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. 0-0 0-0 5. c4 c6 6. d4 d5 7. Nc3 Bf5 8. Bf4 Ne4 9. Qb3 b6 10. cxd5 Nxc3 11. Qxc3 Qxd5 12. Ne5 Qe6 13. e4 Bh3 14. d5 cxd5 15. exd5 Qf5 16. Bxh3 Qxh3 17. Qc7 Na6 18. Qxe7 Nc5 19. Qc7 Rac8 20. Qxa7 g5 21. Bxg5 Bxe5 22. Qxb6 Nd7 23. Qh6 Qf5 24. Be7 Rfe8 25. Qg5+ Qxg5 26. Bxg5 Bxb2 27. Rab1 Rc2 28. Rfe1 Rxe1+ 29. Rxe1 Ne5 30. Kg2 Bd4 31. Be3 Bc3 32. Rc1 Rxc1 33. Bxc1 Kf8 34. Bh6+ Ke7 35. f4 Ng4 36. Bg5+ f6 37. Kh3 Ne3 38. Bh6 Nf5 39. d6+ Kf7 0-1

[Event "Arnhem op"]
[Site "Arnhem"]
[Date "2007.09.02"]
[Round "5"]
[White "Van Onzen, Bart T"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A45"]
[BlackElo "2112"]
[PlyCount "73"]
[EventDate "2007.08.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Bd3 b6 5. c3 Bb7 6. Nd2 d5 7. e5 Nfd7 8. Bxe7 Qxe7 9. Qg4 g6 10. Ne2 c5 11. a3 Nc6 12. 0-0 0-0-0 13. b4 f5 14. exf6 Nxf6 15. Qg3 c4 16. Bc2 Nh5 17. Qg4 Nf6 18. Qg3 Nh5 19. Qh3 Rdf8 20. Nf3 Kb8 21. Ba4 Ka8 22. Bxc6 Bxc6 23. a4 Be8 24. b5 g5 25. Ne5 Nf4 26. Nxf4 gxf4 27. a5 Kb7 28. axb6 axb6 29. Ra2 Bxb5 30. Rfa1 Ra8 31. Ng6 Rxa2 32. Rxa2 Ra8 33. Nxe7 Rxa2 34. g3 f3 35. Qf1 Ra8 36. Qb1 Ba4 37. h4 1-0

[Event "Arnhem op"]
[Site "Arnhem"]
[Date "2007.09.01"]
[Round "4"]
[White "Kamstra, Jippe"]
[Black "Jellema, Yme Jan"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2112"]
[BlackElo "2121"]
[PlyCount "44"]
[EventDate "2007.08.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. Rh4 Be7 14. Re4 Ngf6 15. Re2 0-0-0 16. 0-0-0 Bd6 17. Ne4 Nxe4 18. Qxe4 Nf6 19. Qh4 c5 20. Be3 c4 21. c3 Nd5 22. Ne5 Be7 1/2-1/2

[Event "NED-ch62 sf"]
[Site "Hilversum"]
[Date "2006.11.05"]
[Round "1.2"]
[White "Kamstra, Jippe"]
[Black "Smeets, Jan"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2076"]
[BlackElo "2525"]
[PlyCount "76"]
[EventDate "2006.11.04"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng3 c5 7. Nf3 b5 8. Be2 Bb7 9. 0-0 a6 10. b3 Qb6 11. c4 cxd4 12. Nxd4 Bc5 13. Be3 bxc4 14. bxc4 Rc8 15. Rb1 Qa7 16. Rb3 0-0 17. Qa1 Rc7 18. Nf3 Bxe3 19. Rxe3 Qc5 20. Ne5 Nxe5 21. Rxe5 Qc6 22. Bf3 Qxc4 23. Rg5 Ne8 24. Rg4 Qc5 25. Bxb7 Rxb7 26. Ne4 Qe7 27. Rg3 f5 28. Nd2 e5 29. Nc4 e4 30. Rd1 Rd7 31. h4 Rxd1+ 32. Qxd1 Nf6 33. Qb3 Kh8 34. Qb6 Rd8 35. Ne3 g6 36. f4 Qd6 37. Qb2 Qd4 38. Qb7 Nh5 0-1

[Event "NED-ch62 sf"]
[Site "Hilversum"]
[Date "2006.11.04"]
[Round "1.1"]
[White "Smeets, Jan"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2525"]
[BlackElo "2076"]
[PlyCount "51"]
[EventDate "2006.11.04"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nge2 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. f3 Nc6 8. Qd2 Bd7 9. 0-0-0 Nxd4 10. Bxd4 0-0 11. Kb1 Be6 12. h4 h5 13. g4 Rc8 14. Nd5 Bxd5 15. exd5 e5 16. dxe6 fxe6 17. Qg5 hxg4 18. fxg4 e5 19. Bxe5 Qc7 20. Bc3 Qc6 21. Bb5 Qb6 22. Bd4 Rc5 23. Bxc5 dxc5 24. Bc4+ Kh8 25. h5 Nxh5 26. c3 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.29"]
[Round "8"]
[White "Kamstra, Jippe"]
[Black "Pel, Bonno"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2102"]
[BlackElo "2350"]
[PlyCount "134"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. d3 c6 4. Nc3 d5 5. exd5 cxd5 6. Bb3 Bg4 7. f3 Bh5 8. Nge2 Bg6 9. 0-0 e6 10. Ng3 h5 11. Re1 h4 12. Nf1 Nc6 13. d4 Be7 14. Ne2 Nh5 15. Nf4 Nxf4 16. Bxf4 Na5 17. Ne3 h3 18. g3 Bh5 19. g4 Bg6 20. Qe2 Kf8 21. c3 Nxb3 22. axb3 f6 23. Bg3 Bd6 24. Nf1 Bf7 25. Qb5 Bxg3 26. Nxg3 Qc7 27. c4 dxc4 28. bxc4 Kg8 29. c5 a6 30. Qd3 Rd8 31. Ne4 e5 32. Nd6 exd4 33. Qxd4 Kh7 34. b4 Bg6 35. Qf2 Kg8 36. Re2 Rh6 37. Rae1 Rd7 38. Qd4 Kh7 39. Re6 Qc6 40. Kf2 Qa4 41. Qb2 a5 42. g5 Rh4 43. gxf6 Rxb4 44. Qe5 Rb3 45. Ne4 Rdd3 46. Ng5+ Kh6 47. fxg7 Qh4+ 48. Qg3 Rd2+ 49. Kg1 Qxg3+ 50. hxg3 Rg2+ 51. Kh1 Kxg7 52. Nxh3 Rxg3 53. Ng1 Bf7 54. R6e5 Rb4 55. Kh2 Rg6 56. R1e4 Rb2+ 57. Re2 Rb1 58. Nh3 a4 59. Nf4 Rh6+ 60. Kg3 a3 61. Nd5 Rc1 62. Nb4 Rg1+ 63. Kf2 Rb1 64. Nc2 a2 65. f4 Rh2+ 66. Kf3 Rxe2 67. Kxe2 Rb2 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.29"]
[Round "7"]
[White "Kodentsov, Grigori"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2270"]
[BlackElo "2102"]
[PlyCount "87"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. g3 Be7 5. Bg2 0-0 6. d4 cxd4 7. Nxd4 Nc6 8. 0-0 a6 9. b3 Qc7 10. Bb2 b6 11. e3 Bb7 12. h3 Rad8 13. Rc1 Nxd4 14. Qxd4 Bxg2 15. Kxg2 Bc5 16. Qf4 e5 17. Qf3 Qc6 18. Rfd1 e4 19. Qf4 Rfe8 20. Nd5 Nxd5 21. Rxd5 Bf8 22. Rcd1 b5 23. cxb5 axb5 24. R5d2 Re6 25. Rc1 Qa8 26. Bd4 Ra6 27. Qg5 d5 28. Rdc2 h6 29. Qf5 Ba3 30. Rc7 Rf8 31. R1c2 Bd6 32. Qg4 g5 33. Rc8 Qb7 34. Rxf8+ Bxf8 35. Qf5 b4 36. Qe5 f6 37. Qe8 Qf7 38. Qc8 Qe6 39. Qb7 h5 40. Rc8 Rd6 41. Bc5 h4 42. Rxf8+ Kxf8 43. Qb8+ Ke7 44. Qc7+ 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.28"]
[Round "6"]
[White "Kamstra, Jippe"]
[Black "Van Ketel, Raoul"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2102"]
[BlackElo "2271"]
[PlyCount "82"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 c5 7. 0-0 Nxe4 8. Bxe4 Nf6 9. Bd3 cxd4 10. Nxd4 Bc5 11. Nb3 Bb6 12. Qf3 Qd5 13. Be2 0-0 14. Rd1 Qxf3 15. Bxf3 e5 16. Bg5 Bg4 17. Bxg4 Nxg4 18. Bh4 g5 19. Bg3 f5 20. h3 f4 21. Bh4 Ne3 22. fxe3 gxh4 23. Rd5 Bxe3+ 24. Kf1 Rae8 25. Nc5 Re7 26. Nd7 Rf5 27. Ke2 Kf7 28. Rad1 Rg5 29. c4 Bd4 30. Kf3 Rg3+ 31. Ke4 Rxg2 32. b4 Re2+ 33. Kf5 f3 34. Rd3 e4 35. R3xd4 f2 36. Ne5+ Kg7 37. Ng4 f1Q+ 38. Kg5 Rg2 39. Kxh4 Rxg4+ 40. Kxg4 Qf3+ 41. Kh4 Qf4+ 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.27"]
[Round "4"]
[White "Van Leent, Dmitri"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "A15"]
[WhiteElo "2309"]
[BlackElo "2102"]
[PlyCount "86"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 d5 3. cxd5 Nxd5 4. Bg2 c6 5. Nf3 Nd7 6. d4 N7f6 7. 0-0 Bf5 8. Qb3 Qb6 9. Nbd2 e6 10. Re1 Qxb3 11. Nxb3 Bc2 12. Nbd2 Ne4 13. Ne5 Bb4 14. Nec4 0-0-0 15. a3 Nxd2 16. Bxd2 Bxd2 17. Nxd2 Nb6 18. Rac1 Bg6 19. Nf3 Be4 20. e3 f6 21. b3 Rd5 22. Rc3 Rhd8 23. Kf1 g5 24. h3 h5 25. Rec1 g4 26. hxg4 hxg4 27. Ng1 Bxg2+ 28. Kxg2 e5 29. Ne2 Kd7 30. Rh1 Ke6 31. Rh6 Kf5 32. Rc1 Ra5 33. a4 Nd5 34. Rh7 Ke4 35. dxe5 fxe5 36. Rc4+ Kd3 37. Kf1 b5 38. Rxc6 bxa4 39. bxa4 Rxa4 40. Nc1+ Ke4 41. Nb3 Rb4 42. Nc5+ Kf3 43. Nd3 Nxe3+ 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.26"]
[Round "3"]
[White "Kamstra, Jippe"]
[Black "Pouw, Marcel Andre"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2102"]
[PlyCount "57"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 e5 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. d3 d6 9. a3 Na5 10. Ba2 c5 11. h3 Re8 12. Nbd2 Qc7 13. Nf1 g6 14. Ng5 Rf8 15. f4 exf4 16. Bxf4 Nh5 17. Bd2 Bf6 18. Re2 Qd8 19. Nf3 Nc6 20. Bd5 Bd7 21. Bh6 Bg7 22. Qd2 Rc8 23. Rf2 Be6 24. g4 Nf6 25. Bxg7 Kxg7 26. Qc3 Bxd5 27. exd5 Ne5 28. Nxe5 dxe5 29. Qxe5 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.24"]
[Round "2"]
[White "Van Oosterom, Chiel"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2235"]
[BlackElo "2102"]
[PlyCount "55"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. dxc5 Qxd1+ 7. Kxd1 e5 8. b4 Bg4 9. Kc2 0-0-0 10. Bb5 Bf5+ 11. Kb2 Ng4 12. Be3 Be7 13. Nbd2 Be6 14. h3 Nxe3 15. fxe3 f5 16. Nc4 e4 17. Nd4 Nxd4 18. exd4 a6 19. Nb6+ Kc7 20. Be2 g5 21. Rad1 Kc6 22. Rd2 a5 23. Rhd1 e3 24. Rd3 axb4 25. Rxe3 bxc3+ 26. Kxc3 Bxa2 27. Rxe7 Rhe8 28. Bf3+ 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2005.12.23"]
[Round "1"]
[White "Kamstra, Jippe"]
[Black "Niesert, Loet"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2102"]
[PlyCount "75"]
[EventDate "2005.12.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 110 Extra"]
[Source "ChessBase"]
[SourceDate "2006.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2006.03.10"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 d4 3. Nce2 e5 4. d3 Be6 5. f4 f6 6. Nf3 Bd6 7. g3 c5 8. Bg2 Nc6 9. 0-0 Nge7 10. fxe5 Nxe5 11. c3 N7c6 12. Nf4 Bf7 13. Nd5 Nxf3+ 14. Bxf3 0-0 15. Bh5 Ne7 16. Bxf7+ Rxf7 17. Qb3 Nxd5 18. Qxd5 Be5 19. Qxd8+ Rxd8 20. c4 Rd6 21. Bd2 Rb6 22. b3 Bd6 23. Rf2 Rc6 24. Kg2 Re7 25. h4 a6 26. a4 b6 27. Kh3 Rb7 28. g4 b5 29. axb5 axb5 30. g5 bxc4 31. bxc4 Rb3 32. Rf3 Kf7 33. gxf6 gxf6 34. Bg5 Be5 35. Ra7+ Kg6 36. h5+ Kxg5 37. Rxh7 Rc7 38. Rf5# 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.29"]
[Round "8"]
[White "Kamstra, Jippe"]
[Black "Houtman, Joop"]
[Result "0-1"]
[ECO "C92"]
[WhiteElo "2157"]
[BlackElo "2225"]
[PlyCount "76"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. d5 Nb8 13. Nf1 Nbd7 14. Ng3 Nc5 15. Bc2 c6 16. b4 Ncd7 17. Bb3 cxd5 18. Bg5 dxe4 19. Nxe4 h6 20. Nxf6+ Nxf6 21. Bxf6 Qxf6 22. Nh2 Rac8 23. Re3 Rc7 24. Rg3 Rec8 25. Qh5 Kh8 26. Rc1 g6 27. Qd1 Qf4 28. Rg4 Qf5 29. Qd2 d5 30. Rh4 Kg8 31. Rg4 h5 32. Bc2 Qf6 33. Rg3 e4 34. Bb3 Bg7 35. Bxd5 Rd8 36. Rxg6 Rxd5 37. Rxf6 Rxd2 38. Rf5 Rxc3 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.28"]
[Round "7"]
[White "Van Beek, Alexander"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A60"]
[WhiteElo "2255"]
[BlackElo "2157"]
[PlyCount "55"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 Bd6 6. Nc3 0-0 7. g3 Bc7 8. d6 Ba5 9. Bg5 h6 10. Bh4 g5 11. Nxg5 Qb6 12. Qd2 Ne8 13. 0-0-0 Bxc3 14. bxc3 hxg5 15. Bxg5 Nc6 16. Bf6 Nxf6 17. Qg5+ Kh7 18. Bh3 Qd8 19. Bf5+ Kh8 20. Qh5+ Kg8 21. Qg5+ Kh8 22. Qh6+ Kg8 23. Rd5 Re8 24. f4 b5 25. Bd3 Ne4 26. Bxe4 Rxe4 27. Rh5 f6 28. Qg6+ 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.27"]
[Round "6"]
[White "Kamstra, Jippe"]
[Black "Wielenga, Wiebe"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "2157"]
[PlyCount "85"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Bb7 12. d4 Bf6 13. Re1 c5 14. Be3 Re8 15. Nd2 Qd7 16. dxc5 Rad8 17. Nf1 Qc8 18. Bxd5 Rxd5 19. Bd4 Rxe1 20. Qxe1 Rg5 21. Ng3 h5 22. f3 Bxf3 23. gxf3 h4 24. Kg2 hxg3 25. hxg3 Rh5 26. g4 Bh4 27. Qe4 Rh6 28. Rh1 Qd8 29. c6 Re6 30. c7 Qxc7 31. Qa8+ Bd8 32. Rd1 Kh7 33. Bf2 Bg5 34. Rh1+ Bh6 35. g5 Qf4 36. gxh6 Rg6+ 37. Kf1 Qc1+ 38. Be1 gxh6 39. Qd5 Qc2 40. f4 a5 41. Qxf7+ Rg7 42. Qd5 Re7 43. Rxh6+ 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.26"]
[Round "5"]
[White "Van Dongen, Rob"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "A59"]
[WhiteElo "1985"]
[BlackElo "2157"]
[PlyCount "64"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. e4 Bxf1 8. Kxf1 d6 9. g3 Bg7 10. Kg2 Qb6 11. Nf3 Nbd7 12. h3 0-0 13. Qc2 Rab8 14. Re1 h6 15. Nd2 e6 16. dxe6 fxe6 17. a4 Ne5 18. f4 Nc6 19. Nc4 Nd4 20. Qd3 Qc6 21. Be3 d5 22. exd5 exd5 23. Nd2 Nf5 24. Bf2 Rxb2 25. g4 d4+ 26. Nce4 Ne3+ 27. Kg1 Rxd2 28. Qxd2 Nxe4 29. Qa2+ Kh7 30. Bxe3 dxe3 31. Rac1 Nf2 32. Rxe3 Qh1+ 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.23"]
[Round "3"]
[White "Van der Velde, Werner"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B67"]
[BlackElo "2157"]
[PlyCount "80"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nc6 7. Qd2 Bd7 8. 0-0-0 b5 9. Bxf6 gxf6 10. Kb1 e6 11. f4 Qb6 12. g3 h5 13. Nf3 Rd8 14. Bg2 Na5 15. Rhe1 b4 16. Nd5 Qc5 17. Nxf6+ Ke7 18. Nxd7 Rxd7 19. Qd4 Qxd4 20. Rxd4 Rb7 21. Red1 Bg7 22. e5 d5 23. R4d3 Rc8 24. f5 Bh6 25. f6+ Ke8 26. Re1 Nc4 27. Re2 a5 28. Nd4 a4 29. Ka1 Bc1 30. b3 Nb2 31. Rf3 Nd1 32. Re1 Bb2+ 33. Kb1 Bxd4 34. Rxd1 Bxe5 35. Re3 axb3 36. cxb3 Bxf6 37. Rxd5 Rbc7 38. Rd1 Rc2 39. Be4 Rb2+ 40. Ka1 Rxb3+ 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.22"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Haveman, Koen"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2157"]
[PlyCount "114"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. Nbd2 Bf5 9. Re1 Nxd2 10. Bxf5 Nxf3+ 11. gxf3 0-0 12. Qd3 Bd6 13. f4 Qf6 14. Bxh7+ Kh8 15. Re3 Bxf4 16. Rh3 Rfe8 17. Be3 Bh6 18. c3 Nd8 19. Qf5 Re6 20. Kh1 Qxf5 21. Bxf5 Rf6 22. Rg1 Rxf5 23. Bxh6 g6 24. Bf4+ Kg7 25. Rf3 Kg8 26. Rgg3 Ne6 27. Be5 Rxf3 28. Rxf3 c6 29. Rh3 Ng7 30. f4 Re8 31. f5 Nh5 32. f6 Re6 33. Rf3 Kh7 34. Kg1 g5 35. h4 gxh4 36. Rh3 Nxf6 37. Rxh4+ Kg6 38. Rh8 Ne8 39. Kf2 f6 40. Bb8 a6 41. Rh1 Ng7 42. Rg1+ Kf7 43. Kf3 Re4 44. Bf4 Ne6 45. Be3 Rh4 46. Kg3 Rh5 47. Rf1 Kg6 48. Re1 Rh7 49. a3 Ng5 50. Bf4 Ne4+ 51. Kg4 Nf2+ 52. Kf3 Nd3 53. Re2 Nxf4 54. Kxf4 Kf7 55. Kf5 Rh5+ 56. Kg4 Rh1 57. Kg3 Rh7 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.21"]
[Round "1"]
[White "De Wit, Gerard"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A57"]
[BlackElo "2157"]
[PlyCount "85"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 Qxb6 6. Nc3 d6 7. Nf3 g6 8. e4 Bg7 9. Be2 0-0 10. 0-0 Nbd7 11. Re1 Ng4 12. Nd2 Nge5 13. a4 Bb7 14. a5 Qa7 15. Qa4 f5 16. f4 c4+ 17. Kh1 Nc5 18. Qd1 Ncd3 19. Rf1 Nf2+ 20. Rxf2 Qxf2 21. fxe5 Bxe5 22. Nxc4 Bxc3 23. bxc3 fxe4 24. Be3 Qf6 25. Bd4 Qg5 26. Nb6 Rad8 27. c4 h5 28. Ra3 Rf5 29. Re3 e5 30. dxe6 Re8 31. c5 Kh7 32. cxd6 Rxe6 33. d7 Rd6 34. Qa1 Rxa5 35. Qc3 Rc6 36. Bc4 Rb5 37. h3 Rb1+ 38. Kh2 h4 39. Rxe4 Rd6 40. Rg4 Qe7 41. Bf2 Rf6 42. Rxh4+ Kg7 43. Rf4 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.21"]
[Round "4"]
[White "Kamstra, Jippe"]
[Black "Cako, Laszlo"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2157"]
[BlackElo "2137"]
[PlyCount "126"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. d3 d6 9. h3 Na5 10. c3 Nxb3 11. axb3 c5 12. Nbd2 Re8 13. Nf1 h6 14. Ng3 Bf8 15. Be3 d5 16. Qc2 Qc7 17. Nh4 g6 18. Rf1 dxe4 19. Nxe4 Nxe4 20. dxe4 Bb7 21. Rad1 Rad8 22. Nf3 Rxd1 23. Rxd1 c4 24. b4 Qc6 25. Rd5 Qf6 26. Rd7 Bc8 27. Ra7 Bxh3 28. Nxe5 Qxe5 29. gxh3 Bd6 30. f4 Qxe4 31. Qxe4 Rxe4 32. Ra8+ Kg7 33. Bd4+ f6 34. Rxa6 Bxf4 35. Bxf6+ Kf7 36. Bh8 Be5 37. Bxe5 Rxe5 38. Rb6 Rd5 39. Kf1 h5 40. h4 Rd1+ 41. Ke2 Rb1 42. Rxb5 Rxb2+ 43. Kf3 Rh2 44. Rc5 Rxh4 45. b5 Rh1 46. Rxc4 Rb1 47. Rf4+ Ke6 48. c4 Ke5 49. Re4+ Kf5 50. Rf4+ Kg5 51. Rd4 h4 52. Kf2 Rb2+ 53. Kg1 Kh5 54. Rd6 Rb4 55. Rc6 g5 56. b6 Kg4 57. c5 Kg3 58. Rf6 h3 59. Rf1 g4 60. Rc1 h2+ 61. Kh1 Kh3 62. b7 g3 63. b8Q Rxb8 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.30"]
[Round "9"]
[White "Van Kooten, Luuk"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2269"]
[PlyCount "115"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Be7 4. e4 d6 5. Nf3 0-0 6. Be2 a6 7. 0-0 c5 8. Re1 cxd4 9. Nxd4 Nc6 10. Nc2 b6 11. Be3 Qc7 12. Rc1 Bb7 13. Na3 Ne5 14. f3 Rad8 15. Qb3 Nfd7 16. Red1 Nc5 17. Qc2 Nc6 18. Bf1 Bf6 19. Nab1 Be5 20. f4 Bf6 21. a3 a5 22. Nb5 Qb8 23. N1c3 Na7 24. b4 Nxb5 25. cxb5 axb4 26. axb4 Nd7 27. Bd3 g6 28. Qf2 Rc8 29. e5 dxe5 30. Bxg6 hxg6 31. Rxd7 Rfd8 32. fxe5 Rxd7 33. Qxf6 Rxc3 34. Rxc3 Qd8 35. Qxd8+ Rxd8 36. Rc7 Rb8 37. Kf2 Bd5 38. g3 Kg7 39. Bg5 Ra8 40. Bf6+ Kf8 41. h4 Ke8 42. Re7+ Kf8 43. Ke3 Rb8 44. Kd4 Rc8 45. Rd7 Rc4+ 46. Kd3 Rc8 47. Rd8+ Rxd8 48. Bxd8 Kg7 49. Bxb6 f5 50. exf6+ Kxf6 51. Kd4 Ke7 52. Ke5 Kd7 53. Bc5 Bf3 54. Kf6 Be4 55. g4 Bf3 56. Kxg6 Bxg4 57. h5 Be2 58. b6 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.29"]
[Round "8"]
[White "Kamstra, Jippe"]
[Black "Van Beek, Alexander"]
[Result "1-0"]
[ECO "B12"]
[BlackElo "2276"]
[PlyCount "93"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e6 5. Ng3 Bg6 6. Bd3 c5 7. c3 Nc6 8. b3 Qb6 9. Bb2 Bxd3 10. Qxd3 cxd4 11. cxd4 Nb4 12. Qe2 Rc8 13. Na3 Qa6 14. Qxa6 bxa6 15. Kd2 Be7 16. f4 Kd7 17. Rhc1 Nh6 18. Nc2 g5 19. Nxb4 Bxb4+ 20. Kd3 gxf4 21. Nh5 f3 22. Nf6+ Ke7 23. a3 Ba5 24. gxf3 Nf5 25. b4 Bb6 26. a4 Rc4 27. Rxc4 dxc4+ 28. Kxc4 Rc8+ 29. Kd3 Rd8 30. d5 exd5 31. Re1 a5 32. bxa5 Bxa5 33. f4 Rb8 34. Ba3+ Kd8 35. Nxd5 Rb3+ 36. Ke4 Rxa3 37. Kxf5 Rxa4 38. Rd1 Ke8 39. Nf6+ Kf8 40. Nxh7+ Kg7 41. Nf6 Bb6 42. Rd2 Ra1 43. Rg2+ Kh6 44. Ng8+ Kh7 45. Kf6 Rf1 46. Kxf7 Rxf4+ 47. Nf6+ 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.22"]
[Round "2"]
[White "Wang, Yu A"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2367"]
[PlyCount "63"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 Be7 8. Qd2 b5 9. g4 Bb7 10. 0-0-0 Nc6 11. Kb1 Rc8 12. g5 Nd7 13. h4 Nde5 14. f4 Ng4 15. Bh3 Nxe3 16. Qxe3 Nxd4 17. Qxd4 0-0 18. Rhe1 Rc4 19. Qd3 Qa5 20. f5 f6 21. fxe6 fxg5 22. hxg5 Rfc8 23. Nd5 Bxd5 24. exd5 Rxc2 25. Bf5 Bxg5 26. Bxh7+ Kh8 27. Qxc2 Rxc2 28. Bxc2 Qc7 29. Rh1+ Kg8 30. Bh7+ Kf8 31. Rdf1+ Bf6 32. Bg6 1-0

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.09"]
[Round "9"]
[White "Kamstra, Jippe"]
[Black "Van der Zalm, Marnix"]
[Result "1-0"]
[ECO "A85"]
[BlackElo "2110"]
[PlyCount "59"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nc3 g6 4. h4 Bg7 5. h5 Nxh5 6. Rxh5 gxh5 7. e4 0-0 8. Qxh5 d6 9. Nf3 Qe8 10. Qh2 c6 11. Bd3 e5 12. d5 Na6 13. Be3 Nb4 14. Bb1 cxd5 15. cxd5 fxe4 16. Nxe4 Bf5 17. Nxd6 Qg6 18. Nxf5 Rxf5 19. Nh4 Qf6 20. Nxf5 e4 21. Nd4 Nd3+ 22. Bxd3 exd3 23. Qc7 Qa6 24. Kd2 b6 25. Qc3 Rd8 26. Qxd3 Qa5+ 27. Ke2 Qxd5 28. Qb3 Bxd4 29. Qxd5+ Rxd5 30. Rd1 1-0

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.07"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "Struk, Jerzy"]
[Result "0-1"]
[ECO "B32"]
[BlackElo "2253"]
[PlyCount "56"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nce7 9. Be3 Nxd5 10. Qxd5 Be6 11. Qb7 Qc8 12. Qxc8+ Rxc8 13. Bd3 Nf6 14. 0-0 d5 15. exd5 Nxd5 16. Bd2 Nf4 17. Bxf4 exf4 18. Nxb5 axb5 19. Bxb5+ Ke7 20. c3 Kf6 21. a4 Bc5 22. Rfc1 Bb3 23. a5 Rhd8 24. Ba4 Rb8 25. Bxb3 Rxb3 26. Ra4 g5 27. Rc4 Rd5 28. Rb1 Rxb2 0-1

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.06"]
[Round "6"]
[White "Prange, Stefan"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2179"]
[PlyCount "115"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 e6 4. Nc3 a6 5. e4 cxd4 6. Nxd4 d6 7. Be2 Be7 8. 0-0 0-0 9. Be3 b6 10. Qd2 Bb7 11. f3 Nbd7 12. Rfd1 Rc8 13. Rac1 Re8 14. Bf1 h6 15. Qf2 d5 16. cxd5 Rxc3 17. Rxc3 exd5 18. Nc6 Bxc6 19. Rxc6 Qa8 20. Rc7 Bd6 21. Rxd7 Nxd7 22. Rxd5 Qb8 23. g3 Nf6 24. Rd1 b5 25. Qd2 Bc7 26. Qf2 Rd8 27. Rxd8+ Qxd8 28. Qd2 Qb8 29. Qd4 Be5 30. Qb4 Qd8 31. Be2 Qc7 32. Qd2 Bxg3 33. hxg3 Qxg3+ 34. Kf1 Qh3+ 35. Kg1 Qg3+ 36. Kf1 Qh3+ 37. Ke1 Qh1+ 38. Bf1 Qxf3 39. Bg2 Qg3+ 40. Qf2 Qc7 41. Qe2 Qg3+ 42. Kd1 Qd6+ 43. Qd2 Qe6 44. Qc2 Qg4+ 45. Kc1 Qe6 46. Kb1 Ng4 47. Bd4 Ne5 48. b3 f6 49. Qc3 Qg4 50. Bxe5 fxe5 51. Qf3 Qh4 52. Qe2 Qg3 53. Bf3 Kh7 54. Bg4 Qc3 55. Bf5+ g6 56. Be6 h5 57. Qc2 Qe1+ 58. Kb2 1/2-1/2

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.04"]
[Round "4"]
[White "Knol, Geon"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2154"]
[PlyCount "37"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Ne7 4. Bg2 d6 5. f4 Na6 6. Nf3 Nc7 7. 0-0 b5 8. d3 a5 9. Nh4 Ng6 10. Nxg6 hxg6 11. f5 gxf5 12. exf5 Ra6 13. fxe6 Bxe6 14. Ne4 Be7 15. Be3 Nd5 16. Bd2 Nf6 17. Qe2 d5 18. Ng5 Ng4 19. Nxe6 0-1

[Event "Vlissingen HZ op 07th"]
[Site "Vlissingen"]
[Date "2003.08.03"]
[Round "2"]
[White "Dogge, Marc"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2176"]
[PlyCount "51"]
[EventDate "2003.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. f4 Nbd7 10. Kh1 Qc7 11. a4 b6 12. Bf3 Bb7 13. Qe1 Rfe8 14. Rd1 Bf8 15. Bc1 e5 16. Nf5 g6 17. Qg3 Kh8 18. fxe5 Nxe5 19. Bg5 Ng8 20. Ne3 Nxf3 21. gxf3 Qc6 22. Ncd5 Bg7 23. Qh4 Qxa4 24. Nxb6 Qa5 25. Nec4 Qb5 26. Nxd6 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.3"]
[White "Kamstra, Jippe"]
[Black "Vermaat, Marcel"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1884"]
[BlackElo "2158"]
[PlyCount "75"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Na3 Bg7 5. Nc2 d6 6. e3 Nf6 7. Ne2 0-0 8. 0-0 Be6 9. d3 Qc8 10. Nf4 Bg4 11. f3 Bd7 12. Rb1 e5 13. Ne2 Bh3 14. a3 a5 15. b4 axb4 16. axb4 Bxg2 17. Kxg2 cxb4 18. Nxb4 Rd8 19. e4 Nd7 20. Be3 Nc5 21. Bxc5 dxc5 22. Nd5 Ra2 23. Rf2 Qa8 24. Nec3 Rxf2+ 25. Kxf2 Bf8 26. Qa4 Nb4 27. Ke2 Qxa4 28. Nxa4 Ra8 29. Nac3 Ra3 30. h4 Kg7 31. f4 exf4 32. gxf4 Kh6 33. Ke3 Bg7 34. Nxb4 Bxc3 35. Nc2 Ra2 36. Rc1 Kh5 37. e5 Kxh4 38. Kf3 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.5"]
[White "Kamstra, Jippe"]
[Black "Vermaat, Marcel"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1884"]
[BlackElo "2158"]
[PlyCount "93"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be6 8. Be3 a6 9. 0-0 Be7 10. Kh1 0-0 11. f4 exf4 12. Bxf4 Rc8 13. Nd4 Nxd4 14. Qxd4 Qc7 15. Nd5 Bxd5 16. exd5 Nd7 17. c4 Bf6 18. Qd2 Ne5 19. b3 Ng6 20. Rae1 Rfe8 21. Bg4 Nxf4 22. Bxc8 Qxc8 23. Qxf4 Rxe1 24. Rxe1 Be5 25. Qh4 g6 26. Rf1 Kg7 27. Qe7 Qg8 28. Qxb7 Qe8 29. Qc6 Qe7 30. Qb6 Qh4 31. Qg1 Bd4 32. g3 Qe4+ 33. Qg2 Qe7 34. Qf3 f5 35. Rd1 Be5 36. Re1 Qg5 37. Qe3 Qg4 38. Rf1 Bd4 39. Qf4 Qxf4 40. Rxf4 Be5 41. Rf1 Kf6 42. b4 Kg5 43. b5 axb5 44. cxb5 Bd4 45. a4 Bb6 46. Kg2 Kf6 47. Re1 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.2"]
[White "Vermaat, Marcel"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "2158"]
[BlackElo "1884"]
[PlyCount "109"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 Nc6 7. Be2 e6 8. Be3 Be7 9. 0-0 Bd7 10. f4 0-0 11. Kh1 Qc7 12. Qe1 Rab8 13. Qg3 b5 14. axb5 Nxd4 15. Bxd4 axb5 16. e5 Ne8 17. Ra7 Rb7 18. Rfa1 b4 19. Rxb7 Qxb7 20. Ra7 Qc8 21. Ba6 Qd8 22. Ne2 Bc6 23. Bd3 g6 24. Qe3 dxe5 25. Qxe5 Bf6 26. Qc5 Bxd4 27. Nxd4 Qd5 28. Qxd5 Bxd5 29. Ra4 Nf6 30. Rxb4 Ra8 31. h3 Ra1+ 32. Kh2 Rd1 33. Ne2 Kg7 34. Rd4 Bc6 35. c4 Nd7 36. Bc2 Re1 37. Nc3 Nf6 38. b4 Rc1 39. Rd2 Nh5 40. b5 Ba8 41. Ne2 Rf1 42. Ng3 Rxf4 43. Nxh5+ gxh5 44. Bd3 Rd4 45. c5 e5 46. Ra2 Bd5 47. Ra3 e4 48. Bf1 h4 49. c6 Rd1 50. c7 Bb7 51. Ra7 Rxf1 52. Rxb7 Rc1 53. b6 e3 54. Rb8 e2 55. Re8 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.08"]
[Round "2.4"]
[White "Vermaat, Marcel"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2158"]
[BlackElo "1884"]
[PlyCount "39"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 0-0 8. e5 Ne4 9. Qc2 d5 10. Bd3 Bf5 11. 0-0 Nxc3 12. Bxf5 Nb5 13. Bxh7+ Kh8 14. Qd3 a6 15. Bf5 Ne7 16. Ng5 Ng8 17. Qh3+ Nh6 18. Nf3 Nd6 19. Bxh6 Nxf5 20. Bg5+ 1-0

[Event "NED-chB sf"]
[Site "Leeuwarden"]
[Date "2002.12.01"]
[Round "2.1"]
[White "Kamstra, Jippe"]
[Black "Vermaat, Marcel"]
[Result "1-0"]
[ECO "B58"]
[WhiteElo "1884"]
[BlackElo "2158"]
[PlyCount "113"]
[EventDate "2002.11.30"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nf3 h6 8. 0-0 Be6 9. Bb5 a6 10. Ba4 Be7 11. Bb3 0-0 12. Re1 Rc8 13. Nd5 Na5 14. Be3 Nxb3 15. Bb6 Nxa1 16. Bxd8 Bxd8 17. Nxf6+ Bxf6 18. c3 Bxa2 19. Qxa1 Be6 20. h3 Rfd8 21. Nd2 Bg5 22. Nf1 d5 23. Qa5 d4 24. Qxe5 dxc3 25. bxc3 Bf6 26. Qh5 Bxc3 27. Re3 b5 28. Rg3 Kf8 29. f4 Bd4+ 30. Kh2 Rc1 31. Ne3 Re1 32. f5 Bc4 33. f6 Bxf6 34. e5 g6 35. Qxh6+ Bg7 36. Qh4 Re8 37. Nxc4 bxc4 38. Qxc4 R1xe5 39. Qxa6 Rf5 40. Qa3+ Kg8 41. Rf3 Rb5 42. Qa7 Be5+ 43. g3 f6 44. h4 Rd8 45. Qe7 Rdb8 46. Rd3 R5b7 47. Qe6+ Kg7 48. Kh3 Kh6 49. Re3 Rb4 50. g4 R8b6 51. Qg8 g5 52. hxg5+ fxg5 53. Rxe5 Rb3+ 54. Kg2 Rb2+ 55. Kf3 R6b3+ 56. Ke4 Rb4+ 57. Kd3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.10"]
[Round "9"]
[White "Kamstra, Jippe"]
[Black "De Hoop, Thomas"]
[Result "1/2-1/2"]
[ECO "B76"]
[PlyCount "20"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. Nxc6 bxc6 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "Porte, Henrik"]
[Result "1-0"]
[ECO "B18"]
[PlyCount "149"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bc4 e6 8. 0-0 Ngf6 9. c3 Be7 10. Qb3 Qc7 11. Re1 Nd5 12. Bf1 0-0 13. Bd2 Rfe8 14. Rac1 c5 15. Bb5 a6 16. Bxd7 Qxd7 17. Ne5 Qc7 18. c4 Nf6 19. Bf4 Bd6 20. dxc5 Qxc5 21. Nxg6 hxg6 22. Be3 Qc6 23. Qb6 Rac8 24. Red1 Qxb6 25. Bxb6 Bc5 26. Bxc5 Rxc5 27. b4 Rc7 28. a4 Rec8 29. c5 b6 30. Rd6 bxc5 31. Rxc5 Rxc5 32. bxc5 Rxc5 33. Rxa6 Rc1+ 34. Nf1 Ne4 35. Ra8+ Kh7 36. Rd8 Ra1 37. f3 Nc3 38. Kf2 Rxa4 39. Rd7 f6 40. Rd6 e5 41. Rd3 Ra2+ 42. Rd2 Ra4 43. Rd3 Nb5 44. Rd2 g5 45. Ne3 Kg6 46. Nd5 g4 47. Rb2 Nd6 48. Rb6 Ra2+ 49. Kg1 gxf3 50. Rxd6 Rxg2+ 51. Kh1 Kg5 52. Rd7 g6 53. h4+ Kxh4 54. Nxf6 Kg3 55. Ne4+ Kf4 56. Rf7+ Ke3 57. Nf6 Rg5 58. Nd5+ Kf2 59. Nf6 Ke1 60. Ne4 Rf5 61. Ra7 f2 62. Ra1+ Ke2 63. Ng3+ Kf3 64. Nxf5 gxf5 65. Ra3+ Ke2 66. Ra2+ Ke1 67. Ra1+ Ke2 68. Kg2 f4 69. Ra2+ Ke3 70. Rxf2 e4 71. Ra2 f3+ 72. Kf1 Kf4 73. Ra4 Ke3 74. Ra3+ Kf4 75. Kf2 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.09"]
[Round "8"]
[White "Rijnaarts, Sjef"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B91"]
[PlyCount "67"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 b5 8. Bg2 Bb7 9. 0-0 Nbd7 10. h3 Be7 11. Be3 Nc5 12. Bxc5 dxc5 13. Nd5 Nxd5 14. exd5 f5 15. c4 Bd6 16. b3 0-0 17. Qd3 f4 18. Be4 Qg5 19. Bxh7+ Kh8 20. Qg6 Qxg6 21. Bxg6 Rf6 22. Be4 f3 23. Nc3 b4 24. Nb1 Bc8 25. h4 Bh3 26. Re1 Raf8 27. Nd2 Bg2 28. Re3 Be7 29. Rae1 R6f7 30. Bg6 Rf6 31. Bd3 R6f7 32. Rxe5 g5 33. Rxe7 gxh4 34. Rxf7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.08"]
[Round "6"]
[White "Tates, Thomas"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B24"]
[PlyCount "40"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 a6 5. d3 b5 6. f4 b4 7. Nce2 d5 8. e5 Nge7 9. d4 cxd4 10. Nxd4 Nxd4 11. Qxd4 Nf5 12. Qf2 Bd7 13. Bd2 Rc8 14. 0-0-0 Qa5 15. Kb1 Rxc2 16. Rc1 Bc5 17. Qe1 Rxb2+ 18. Kxb2 Qa3+ 19. Kb1 Qd3+ 20. Rc2 Ba4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "4"]
[White "Biemans, Erik"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "72"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. Nf3 Nf6 5. Bd3 d5 6. e5 Nfd7 7. Ne2 c5 8. c3 Nc6 9. 0-0 Be7 10. Ng3 Qc7 11. Re1 0-0-0 12. b3 h6 13. Ba3 g5 14. c4 g4 15. cxd5 gxf3 16. dxc6 Bxc6 17. gxf3 h5 18. Qe2 f5 19. exf6 Bxf6 20. Qxe6 Bxd4 21. Nf5 Rhg8+ 22. Kf1 Bxf3 23. Nd6+ Kb8 24. Rac1 Bg2+ 25. Ke2 Ne5 26. Nb5 Nxd3 27. Nxc7 Nf4+ 28. Kd2 Bxf2+ 29. Kc2 Nxe6 30. Nxe6 Bxe1 31. Nxd8 Be4+ 32. Kd1 Ba5 33. Nf7 Rg1+ 34. Ke2 Rg2+ 35. Ke3 Bd5 36. Rf1 Rxa2 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.07"]
[Round "5"]
[White "Kamstra, Jippe"]
[Black "Konijn, Rob"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "108"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. h3 Na5 9. Rd1 0-0 10. d3 Nxb3 11. axb3 Bb7 12. Nh2 d5 13. Ng4 Qd6 14. c4 Nxg4 15. hxg4 dxe4 16. dxe4 Qb4 17. Ra3 Rfd8 18. Bd2 Qd6 19. Ra1 b4 20. c5 Qd4 21. Rc1 Qxb2 22. Ra5 Bg5 23. Rd1 Qxb3 24. c6 Bxc6 25. Rc1 Bxd2 26. Nxd2 Qb2 27. Rxc6 Rxd2 28. Rcxa6 Rf8 29. Qf3 b3 30. Ra8 Rdd8 31. Rxd8 Rxd8 32. Rb5 Qc1+ 33. Kh2 b2 34. Qb3 Qf4+ 35. Kh3 Qh6+ 36. Kg3 Qf4+ 37. Kh3 g5 38. Rb8 Qd2 39. Rxd8+ Qxd8 40. Qxb2 Qd3+ 41. f3 Qd6 42. Kg3 h6 43. Qb8+ Kg7 44. Qb1 c5 45. Kf2 Qd2+ 46. Kf1 c4 47. Qe1 Qd4 48. Ke2 Qd3+ 49. Kf2 c3 50. Qe2 Qd4+ 51. Kf1 Qb4 52. Qd3 Qb2 53. Ke1 c2 54. Kd2 c1Q# 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "2"]
[White "Blayvas, Jan"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "B84"]
[WhiteElo "2113"]
[PlyCount "123"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Bd7 7. Be3 Nc6 8. 0-0 e6 9. f4 Qc7 10. Nb3 Be7 11. a4 b6 12. Qe1 0-0 13. Qf2 Rfb8 14. g4 Nb4 15. g5 Nxe4 16. Nxe4 Qxc2 17. Nbd2 Rc8 18. b3 d5 19. Bd1 Qd3 20. Be2 Qc2 21. Bd1 Qd3 22. Ng3 Rc3 23. Re1 Nc6 24. Qe2 d4 25. Bf2 Nb4 26. Qxd3 Nxd3 27. Re4 Nxf2 28. Kxf2 Bc5 29. Kf1 Bc6 30. Re1 Rd3 31. Nde4 Bb4 32. Re2 Rf3+ 33. Rf2 Re3 34. Bf3 Rc8 35. Rd1 d3 36. Kg2 Bxe4 37. Nxe4 Rc2 38. Rxd3 Rxd3 39. Rxc2 Rxb3 40. Rc8+ Bf8 41. Be2 Rb4 42. Nc3 Rxf4 43. Kg3 Rf5 44. h4 h6 45. gxh6 gxh6 46. Bxa6 Kg7 47. Ne4 Rd5 48. Bb5 Rd4 49. Kf3 Rb4 50. h5 Rb3+ 51. Rc3 Rb1 52. Rc6 Rh1 53. Ng3 Ra1 54. Rxb6 Kf6 55. Ne4+ Ke5 56. Rc6 Ra3+ 57. Rc3 f5 58. Rxa3 fxe4+ 59. Ke2 Bxa3 60. a5 Bc5 61. a6 Kd6 62. Bc4 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.06"]
[Round "3"]
[White "Kamstra, Jippe"]
[Black "Bensdorp, Marlies"]
[Result "0-1"]
[ECO "E07"]
[BlackElo "2117"]
[PlyCount "48"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. cxd5 exd5 4. d4 Nf6 5. Nc3 c6 6. Bg2 Be7 7. Nf3 0-0 8. Qc2 Re8 9. 0-0 Nbd7 10. Bg5 Nf8 11. Ne5 Ne6 12. Bxf6 Bxf6 13. Rad1 Nxd4 14. Rxd4 Bxe5 15. Rd2 Qf6 16. Rc1 Bf5 17. Qb3 Re7 18. Qa3 a6 19. Na4 Rae8 20. e3 Qh6 21. Nb6 Bd6 22. Qc3 Be4 23. Bxe4 Rxe4 24. Rcd1 Bb4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2002.08.05"]
[Round "1"]
[White "Kamstra, Jippe"]
[Black "Van Zutphen, Amy"]
[Result "1-0"]
[ECO "C64"]
[PlyCount "47"]
[EventDate "2002.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 d6 5. h3 Bd7 6. c3 a6 7. Ba4 Nge7 8. d4 exd4 9. cxd4 Bb6 10. Be3 d5 11. Bb3 dxe4 12. Ng5 0-0 13. Qh5 h6 14. Nxf7 Rxf7 15. Bxf7+ Kf8 16. f3 Nf5 17. fxe4 Qe7 18. Bd5 Ncxd4 19. Nc3 c6 20. Bc4 Re8 21. Rxf5+ Bxf5 22. Rf1 Bc5 23. Rxf5+ Nxf5 24. Qxf5+ 1-0

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.04"]
[Round "9.9"]
[White "Brokken, Dennis"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "77"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 c5 7. 0-0 a6 8. Be3 Ng4 9. Bg5 Nc6 10. d5 Nce5 11. Nd2 h6 12. Bh4 g5 13. Bg3 h5 14. Bxe5 Bxe5 15. h3 Nh2 16. Re1 h4 17. Nf3 Nxf3+ 18. Bxf3 b5 19. Qd2 Bf4 20. Qe2 bxc4 21. Qxc4 a5 22. Ne2 Ba6 23. Qc2 Be5 24. Qd2 Bf6 25. Nc3 Bxc3 26. bxc3 f6 27. Rab1 Qc7 28. e5 Rab8 29. Rxb8 Qxb8 30. exf6 exf6 31. Qc2 Qc7 32. Bg4 Qg7 33. Re6 Rd8 34. Qe4 f5 35. Bxf5 Qxc3 36. Rg6+ Kf8 37. Qe6 Qc1+ 38. Kh2 Qf4+ 39. Kg1 1/2-1/2

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "7.12"]
[White "Burgerhoff, Tycho"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "74"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. Nd2 Nf6 5. Qe2 e6 6. Ngf3 fxe4 7. Nxe4 Be7 8. 0-0 0-0 9. Re1 Nc6 10. a3 a5 11. Nxf6+ Bxf6 12. Qe4 g6 13. Bh6 Rf7 14. Qg4 Ne7 15. Ne5 Bxe5 16. dxe5 Nf5 17. Bg5 Qf8 18. f4 Qc5+ 19. Kh1 Ne3 20. Rxe3 Qxe3 21. Qh4 Raf8 22. Bf6 Rxf6 23. exf6 Qd4 24. f7+ Kg7 25. Qg3 Rxf7 26. f5 exf5 27. Qxc7 Qd5 28. Rg1 Re7 29. Qxb6 f4 30. Bc4 Qxc4 31. Qxb7 Qxc2 32. Qb6 Qd2 33. Qc5 Re1 34. Rxe1 Qxe1+ 35. Qg1 Qxg1+ 36. Kxg1 Kf6 37. Kf2 a4 0-1

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "8.7"]
[White "Kamstra, Jippe"]
[Black "Sminia, Jelmer"]
[Result "0-1"]
[ECO "C12"]
[PlyCount "104"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Ne2 c5 9. f3 Nxc3 10. bxc3 b6 11. c4 Ba6 12. cxd5 Qxd5 13. Nc3 Qxd4 14. Qxd4 cxd4 15. Nb5 Bxb5 16. Bxb5+ Ke7 17. 0-0-0 Rd8 18. Rd2 a6 19. Bd3 Ra7 20. Be4 Nd7 21. Rhd1 Nxe5 22. Rxd4 Rad7 23. Rxd7+ Rxd7 24. Rxd7+ Nxd7 25. Kd2 Kd6 26. c3 Kc5 27. Bd3 a5 28. f4 Nf6 29. a4 Nd5 30. g3 Nc7 31. Bh7 f6 32. Kd3 b5 33. axb5 Nxb5 34. Bg8 Nc7 35. Kc2 e5 36. fxe5 fxe5 37. Kd3 a4 38. Ke4 Kd6 39. Bc4 g6 40. Bf7 a3 41. Kd3 e4+ 42. Kc2 e3 43. Bb3 Nd5 44. Kd3 e2 45. Kxe2 Nxc3+ 46. Kf3 Ke5 47. Ke3 a2 48. Bxa2 Nxa2 49. Kf3 Nc3 50. Ke3 Nd5+ 51. Kf3 Kf5 52. Kf2 Ke4 0-1

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.02"]
[Round "6.11"]
[White "Kamstra, Jippe"]
[Black "Mekuria, Rufail"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "95"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. f4 c6 4. Nf3 Qa5+ 5. Bd2 Qb6 6. Nc3 d5 7. e5 h5 8. Bd3 Nh6 9. h3 Bf5 10. Na4 Qd8 11. Qe2 e6 12. 0-0-0 Nd7 13. Rdg1 h4 14. g4 hxg3 15. Rxg3 Bxd3 16. Qxd3 Nf5 17. Rg2 b5 18. Nc3 b4 19. Nd1 Qa5 20. Kb1 c5 21. c4 dxc4 22. Qe4 Rd8 23. d5 exd5 24. Qxd5 Ne7 25. Qxc4 Nb6 26. Qc2 c4 27. Ne3 Qb5 28. Ng4 Bg7 29. Nf6+ Kf8 30. Ka1 b3 31. Qb1 Rd3 32. Ng5 Bxf6 33. exf6 Nf5 34. a3 Qd5 35. Bb4+ Ke8 36. Re2+ Kd7 37. Rhe1 Kc6 38. Re5 Nd4 39. Rxd5 Nxd5 40. Rc1 Kb5 41. Qxd3 cxd3 42. Rc5+ Kb6 43. Rxd5 Nc2+ 44. Kb1 Nxb4 45. axb4 Re8 46. Kc1 Re2 47. Rxd3 Rc2+ 48. Kb1 1-0

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "4.9"]
[White "Kamstra, Jippe"]
[Black "Plukkel, Sjoerd"]
[Result "0-1"]
[ECO "B59"]
[BlackElo "2189"]
[PlyCount "62"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Kh1 Be6 10. f4 a5 11. f5 Bd7 12. g4 a4 13. Nd2 Nd4 14. g5 Ne8 15. Nf3 Nxf3 16. Rxf3 Bxg5 17. Bxg5 Qxg5 18. Rg3 Qd8 19. Qg1 Bc6 20. Rf1 Qf6 21. Bc4 Nc7 22. Rg6 hxg6 23. fxg6 Qh4 24. Bxf7+ Kh8 25. Qe3 Ne6 26. Rf5 Nd8 27. Qe2 Nxf7 28. Rh5+ Qxh5 29. Qxh5+ Nh6 30. Nd5 Bxd5 31. exd5 e4 0-1

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "5.11"]
[White "Lui, Kachun"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "61"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Nd2 b6 5. c3 Bb7 6. Bd3 d5 7. e5 Nfd7 8. Be3 c5 9. Qg4 g6 10. h4 h5 11. Qg3 Qc7 12. Nh3 Nc6 13. Bxg6 Rg8 14. Bxf7+ Kxf7 15. Qf3+ Ke8 16. Qxh5+ Kd8 17. Nf4 Nf8 18. Qf7 Rg4 19. h5 Ba6 20. h6 cxd4 21. h7 dxe3 22. h8Q exf2+ 23. Kd1 Kd7 24. Nxd5 exd5 25. Qf5+ Ne6 26. Rh6 Ncd4 27. cxd4 f1R+ 28. Nxf1 Rxd4+ 29. Nd2 Rxd2+ 30. Kxd2 Bb4+ 31. Kd1 1-0

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "2.6"]
[White "Bensdorp, Laura"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B90"]
[PlyCount "93"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nc6 7. a4 Bd7 8. 0-0 Rc8 9. Kh1 Qb6 10. Nb3 Ne5 11. Be3 Qd8 12. h3 Nc4 13. Bxc4 Rxc4 14. Qd3 Rc8 15. f4 g6 16. Bd4 Be6 17. Nd2 Bg7 18. f5 Rxc3 19. Bxc3 Bd7 20. Rf2 b5 21. axb5 Bxb5 22. Qe3 Qa8 23. Qb6 0-0 24. Qe3 Rc8 25. Re1 a5 26. fxg6 hxg6 27. e5 Rxc3 28. Qxc3 dxe5 29. Qb3 Bc6 30. Rxe5 e6 31. Re1 a4 32. Qa3 Bf8 33. Qg3 Nh5 34. Qc7 Bc5 35. Qxf7+ Kh8 36. Rf3 Qb8 37. Qxe6 Ng3+ 38. Rxg3 Qxg3 39. Qe5+ Qxe5 40. Rxe5 Bd4 41. Re6 Bb5 42. c3 Bf2 43. Rxg6 Be3 44. Rd6 Bf4 45. Rd4 Be3 46. Rb4 Bc6 47. Nc4 1-0

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "3.7"]
[White "Van Ruitenburg, Joost"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "45"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Nd2 d5 5. exd5 Qxd5 6. Ngf3 Nc6 7. Bc4 Qd7 8. c3 h6 9. Bh4 b6 10. Bb5 Bb7 11. Ne5 Nxe5 12. Bxd7+ Nexd7 13. 0-0 0-0-0 14. Qe2 g5 15. Bg3 Nd5 16. c4 Nf4 17. Bxf4 gxf4 18. f3 Nf6 19. Nb3 Bc6 20. a4 Rxd4 21. Nxd4 Bc5 22. Rfd1 Rd8 23. Kh1 1-0

[Event "NED-ch U20"]
[Site "Nijmegen"]
[Date "2002.04.29"]
[Round "1.11"]
[White "Kamstra, Jippe"]
[Black "Ruygrok, Dennis"]
[Result "1-0"]
[ECO "C86"]
[PlyCount "73"]
[EventDate "2002.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 0-0 8. c3 d6 9. h3 Bb7 10. d4 h6 11. Rd1 exd4 12. cxd4 Re8 13. e5 dxe5 14. dxe5 Bd6 15. e6 fxe6 16. Nh4 Nd5 17. Qh5 Ne5 18. Nc3 Nxc3 19. bxc3 Qf6 20. Nf5 Rf8 21. Bf4 Kh8 22. Nxd6 cxd6 23. Bg3 Rad8 24. Qe2 Rfe8 25. Rd4 Nf7 26. Rad1 d5 27. Rf4 Qe7 28. Re1 Ng5 29. Rg4 Ne4 30. Be5 Rg8 31. Qe3 Kh7 32. Bc2 g6 33. f3 Nf6 34. Rh4 h5 35. Qg5 Rdf8 36. Rxh5+ Nxh5 37. Qxe7+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "6"]
[White "Benning, Tijmen Jan"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A08"]
[PlyCount "73"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 d5 4. d3 e6 5. Nbd2 Bd6 6. 0-0 Nge7 7. c4 0-0 8. b3 d4 9. Ne4 f5 10. Nxd6 Qxd6 11. Bd2 e5 12. a3 h6 13. Qc2 Ng6 14. b4 f4 15. Rfb1 Rf7 16. bxc5 Qc7 17. Ra2 Bg4 18. Rab2 Rb8 19. Bc1 fxg3 20. hxg3 Bxf3 21. Bxf3 Rxf3 22. exf3 e4 23. fxe4 Nge5 24. Qe2 g5 25. Kg2 Qf7 26. Bd2 g4 27. Bxh6 Kh7 28. Bf4 Kg7 29. Rh1 Rf8 30. Bh6+ Kg8 31. Bxf8 Kxf8 32. Rh4 Qf3+ 33. Qxf3+ gxf3+ 34. Kf1 Nxd3 35. Rxb7 Kg8 36. Rb3 Nxc5 37. Rxf3 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "In't Groen, Erik"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B61"]
[PlyCount "30"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nc6 7. Qd2 Bd7 8. f4 b5 9. a3 e6 10. Be2 Be7 11. 0-0-0 Rc8 12. Bh4 Qc7 13. g4 Nxe4 14. Nxe4 Nxd4 15. Bxe7 Nb3+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Duijker, Rick"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "58"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Ng4 7. Bg5 Qb6 8. Bb5 Bd7 9. Bxc6 bxc6 10. 0-0 h6 11. Bh4 g5 12. Bg3 Bg7 13. Nf5 Bxf5 14. exf5 h5 15. Ne4 Qxb2 16. f6 Bxf6 17. Rb1 Qd4 18. Qf3 d5 19. Rfe1 dxe4 20. Rxe4 Qc3 21. Qe2 0-0 22. h3 Nh6 23. Rc4 Qa5 24. Qxh5 Qd5 25. Rbb4 Bg7 26. Re4 a5 27. Rbc4 f5 28. Rxe7 Qxc4 29. Qxg5 Rf7 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "Kamstra, Jippe"]
[Black "Hijweegen, Claudia"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "133"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 cxd4 7. cxd4 Bb4+ 8. Kf2 Nh6 9. a3 Be7 10. b4 Bd7 11. Nc3 Rc8 12. Na4 Qc7 13. h3 Nxe5 14. fxe5 Qc2+ 15. Qxc2 Rxc2+ 16. Be2 Bxa4 17. Bxh6 gxh6 18. Rhc1 Rxc1 19. Rxc1 Kd7 20. Bd3 Bg5 21. Nxg5 hxg5 22. Ke3 h6 23. Rf1 Ke7 24. Rc1 Kd7 25. Rc5 b6 26. Rc1 Rf8 27. Rf1 Ke7 28. Rf6 Rh8 29. Kd2 Kf8 30. Bg6 Be8 31. Rf1 Ke7 32. Bh5 Rf8 33. Rf6 Rh8 34. b5 Rh7 35. a4 Bd7 36. Kc3 Bc8 37. Kb4 Bd7 38. a5 Be8 39. axb6 axb6 40. Rf1 Bd7 41. Ra1 Rh8 42. Ra7 Rb8 43. Bxf7 Kd8 44. Bg6 Kc8 45. Ra1 Rb7 46. Rf1 Rc7 47. Bd3 Be8 48. Rf8 Kd8 49. Rh8 h5 50. Bg6 Re7 51. Bxh5 Kd7 52. Bg4 Rf7 53. Rh6 Re7 54. Rf6 Bf7 55. g3 Be8 56. h4 gxh4 57. gxh4 Bf7 58. h5 Bg8 59. Kc3 Bh7 60. Kd2 Be4 61. h6 Bh7 62. Ke3 Be4 63. Kf4 Bd3 64. Kg5 Bxb5 65. Rxe6 Bd3 66. Rxe7+ Kxe7 67. Bf5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Kamstra, Jippe"]
[Black "Karta, Milton"]
[Result "0-1"]
[ECO "C89"]
[PlyCount "118"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Nf6 12. d4 Bd6 13. Bg5 Bxe5 14. dxe5 Qxd1+ 15. Bxd1 Ne4 16. Bf3 Bb7 17. Bxe4 Bxe4 18. Nd2 Bd5 19. Rd1 f6 20. exf6 gxf6 21. Bf4 c6 22. a3 Rad8 23. f3 Rfe8 24. Kf2 Bc4 25. Re1 Rxe1 26. Kxe1 Re8+ 27. Kd1 Bd3 28. Bc7 Re2 29. g4 Rg2 30. Bg3 Kf7 31. Ke1 Ke6 32. f4 Kd5 33. b4 Re2+ 34. Kd1 Re8 35. g5 fxg5 36. fxg5 c5 37. Kc1 cxb4 38. axb4 Ke6 39. Nb3 Kd5 40. Nd2 Rc8 41. Kb2 Bg6 42. Bf2 Re8 43. Bg3 Re2 44. Kc1 Re3 45. Kb2 Re2 46. Kc1 Ke6 47. Bb8 Re1+ 48. Kb2 Kf5 49. Bc7 Re2 50. Kc1 Kxg5 51. Bg3 Kg4 52. Bc7 h5 53. Kd1 Re3 54. c4 bxc4 55. Nxc4 Rc3 56. Ne5+ Kf5 57. Bb8 Rc8 58. Nxg6 Rxb8 59. Ne7+ Kg4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "Van Zutphen, Jimmy"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "71"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qc7 Nge7 9. Nc3 0-0 10. Be3 b5 11. 0-0-0 Rb8 12. Nd5 Nxd5 13. Rxd5 Rb7 14. Qd6 Qg6 15. f3 Qxd6 16. Rxd6 Re8 17. g3 Re6 18. Rd2 Ne7 19. Bh3 Rc6 20. Rhd1 Rcc7 21. f4 f6 22. Bf1 Kf8 23. h4 Ke8 24. g4 Rc6 25. g5 Rbc7 26. f5 Kf7 27. a3 Rb7 28. h5 fxg5 29. Bxg5 h6 30. Bh4 Rbc7 31. c3 Rc5 32. Rd6 R5c6 33. Bg3 Rc5 34. Bd3 R7c6 35. Bc2 Rxd6 36. Rxd6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "9"]
[White "Knol, Geon"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "E81"]
[PlyCount "70"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 b6 7. Bd3 c5 8. Bxf6 Bxf6 9. e5 cxd4 10. exf6 dxc3 11. Be4 cxb2 12. Rb1 Bf5 13. Bxa8 Bxb1 14. Qxb1 Nd7 15. Be4 b5 16. Qxb2 bxc4 17. Ne2 Nxf6 18. 0-0 d5 19. Rd1 Qa8 20. Bc2 a5 21. Qd4 e5 22. Qb6 Nd7 23. Qc7 d4 24. Nxd4 exd4 25. Rxd4 Nf6 26. Qxc4 Rc8 27. Qd3 Qa7 28. Kh1 Qb6 29. Rc4 Rd8 30. Qe2 Qb2 31. Kg1 Qxa2 32. Rc6 Re8 33. Qd2 Qa1+ 34. Kf2 a4 35. Bxa4 Qxa4 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Muhren, Willem"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2215"]
[PlyCount "67"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 Nf6 7. 0-0 Bg4 8. h3 Bd7 9. c3 Qb6 10. Qe2 e5 11. Be3 h5 12. Na3 h4 13. g4 Nxg4 14. Nc4 Qc7 15. hxg4 Bxg4 16. Bh1 b5 17. Ncd2 0-0-0 18. Qf2 d5 19. exd5 exf4 20. Bxc5 Ne5 21. d6 Qd7 22. Nxe5 Bxe5 23. Bf3 h3 24. Kh1 Rh5 25. a4 Bxf3+ 26. Qxf3 Bxd6 27. Bxd6 Qxd6 28. axb5 Rxb5 29. Nc4 Qd5 30. Rxa7 Qxf3+ 31. Rxf3 Rf5 32. Kh2 Kb8 33. Re7 g5 34. Re5 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Sparenberg, Jeroen"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "39"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nd2 e6 4. Ngf3 Ne7 5. Be2 d5 6. e5 c5 7. c3 Nd7 8. 0-0 Nc6 9. Nb3 c4 10. Nbd2 b5 11. b4 a5 12. a3 axb4 13. cxb4 Bxb4 14. Rb1 Bc3 15. Rxb5 Ba6 16. Rb1 Bxd4 17. Nxd4 Nxd4 18. Bb2 Nxe2+ 19. Qxe2 c3 20. Qg4 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Tan, Kevin"]
[Black "Kamstra, Jippe"]
[Result "1/2-1/2"]
[ECO "B75"]
[PlyCount "34"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Bd7 8. Qd2 Nc6 9. 0-0-0 Qa5 10. Bc4 Rc8 11. Bb3 a6 12. Kb1 d5 13. Nxd5 Qxd2 14. Rxd2 Nxd5 15. Bxd5 Nxd4 16. Bxd4 Bxd4 17. Rxd4 Rc7 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Den Heeten, Djurre"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "56"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. f4 d5 6. e5 Nd7 7. Nf3 f6 8. Qe2 Be7 9. exf6 Nxf6 10. Bh3 Nd4 11. Nxd4 cxd4 12. Nd1 0-0 13. Bxe6+ Bxe6 14. Qxe6+ Kh8 15. 0-0 d3 16. cxd3 Re8 17. Ne3 Rc8 18. Qh3 Bc5 19. Kh1 d4 20. Nc4 Re2 21. Kg1 Bb4 22. a3 Rxc4 23. dxc4 d3 24. g4 Bc5+ 25. Kh1 Qe8 26. Qxd3 Nxg4 27. Qc3 Qe4+ 28. Rf3 Qxf3+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "Karta, Milton"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "49"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d5 3. exd5 e4 4. Nd4 Qxd5 5. Nb3 Bf5 6. Nc3 Qd7 7. Be2 Nf6 8. 0-0 Be7 9. f3 Nc6 10. fxe4 Bxe4 11. Rxf6 gxf6 12. Nxe4 Rg8 13. Kh1 f5 14. Nf2 0-0-0 15. Bf3 Bh4 16. Qg1 Ne5 17. Bxb7+ Kb8 18. d4 Bxf2 19. Qxf2 Ng4 20. Qf3 Qe7 21. Bf4 Rde8 22. g3 Qe2 23. Bxc7+ Kxc7 24. Qc6+ Kb8 25. Qd6+ 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Van Kempen, Roderick"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B74"]
[PlyCount "60"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Be2 Bg7 6. Nb3 Nf6 7. Nc3 Bd7 8. 0-0 Nc6 9. Be3 Rc8 10. f4 0-0 11. Bf3 Na5 12. Bd4 Nc4 13. e5 dxe5 14. fxe5 Ne8 15. Bxb7 Rb8 16. Qf3 Bf5 17. Be4 Rxb3 18. axb3 Qxd4+ 19. Qf2 Qxf2+ 20. Kxf2 Bxe4 21. Nxe4 Nxe5 22. Rxa7 Nc6 23. Ra4 Bxb2 24. Ke3 f5 25. Nc5 Nd6 26. Nd3 Bg7 27. h3 e5 28. Ra6 f4+ 29. Nxf4 exf4+ 30. Ke2 Nd4+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Kamstra, Jippe"]
[Black "Ruijgrok, Dennis"]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "62"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nf3 e6 9. Be2 Be7 10. 0-0 0-0 11. Nc3 f6 12. exf6 Bxf6 13. d5 exd5 14. cxd5 Nb4 15. Bc5 Be7 16. Bxe7 Qxe7 17. Rc1 Rad8 18. Qb3 N4xd5 19. Nxd5 Nxd5 20. Bc4 c6 21. Rfe1 Be6 22. Rcd1 Qc5+ 23. Kh1 Bf7 24. Ne5 b5 25. Bxd5 Bxd5 26. Qh3 Qc2 27. Rxd5 cxd5 28. Qe6+ Kh8 29. Nf7+ Rxf7 30. Qxf7 Qg6 31. Qxa7 Qf6 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Koekoek, Arjen"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B92"]
[PlyCount "59"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be6 8. Ng5 Nc6 9. Nxe6 fxe6 10. 0-0 Be7 11. Bh5+ Kd7 12. Be3 Qa5 13. a3 Rag8 14. b4 Qd8 15. b5 Nd4 16. bxa6 Nxh5 17. Qxh5 Nxc2 18. Qe2 bxa6 19. Qxc2 Ke8 20. Qa4+ Kf7 21. f4 h6 22. f5 Bg5 23. fxe6+ Kg6 24. Bxg5 hxg5 25. Qxa6 Qc7 26. Qd3 Qc5+ 27. Kh1 Rh4 28. g3 Rxh2+ 29. Kxh2 Rh8+ 30. Kg2 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Ammerlaan, Stefan"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "57"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be6 7. Bg5 Nbd7 8. Qd2 a6 9. f4 Be7 10. Bxf6 Nxf6 11. f5 Bd7 12. Be2 Rc8 13. Bf3 b5 14. a3 a5 15. g4 b4 16. axb4 axb4 17. Ne2 Bc6 18. Ng3 d5 19. Qg2 dxe4 20. Nxe4 Nxe4 21. Bxe4 Bh4+ 22. Ke2 Bb5+ 23. Kf3 0-0 24. Qd2 Qb6 25. g5 Rfd8 26. Qg2 Rc4 27. Kg4 Qe3 28. Kxh4 Rxe4+ 29. Kh5 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Haase, Paul"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "29"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. f4 Be7 8. 0-0 b5 9. e5 dxe5 10. fxe5 Nd5 11. Nxd5 Qxd5 12. Bf3 Qxe5 13. Bxa8 Bc5 14. c3 0-0 15. Bf4 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Bisterbosch, Jasper"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "54"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. Bb5 Nge7 5. d3 d5 6. Nbd2 Bd7 7. 0-0 Qb6 8. c4 d4 9. e5 0-0-0 10. Ne4 Nf5 11. Nfg5 Nh6 12. Bd2 a6 13. Bxc6 Bxc6 14. b3 Be7 15. Qe1 Qc7 16. a3 Bxe4 17. Qxe4 Bxg5 18. fxg5 Nf5 19. Rfc1 h6 20. b4 hxg5 21. Bxg5 f6 22. exf6 Qxh2+ 23. Kf2 Qg3+ 24. Ke2 Qxg5 25. Qxe6+ Kb8 26. Qe5+ Ka8 27. Kf3 Nh4+ 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.06"]
[Round "9"]
[White "Sevriens, Thomas"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "72"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be6 7. Bg5 Nbd7 8. Bb5 Be7 9. Bxf6 gxf6 10. Qd2 0-0 11. 0-0-0 a6 12. Bxd7 Qxd7 13. Kb1 Rfc8 14. f3 b5 15. g4 a5 16. h4 a4 17. Nc1 b4 18. N3e2 b3 19. cxb3 axb3 20. Nxb3 Rxa2 21. Kxa2 Qa4+ 22. Kb1 Bxb3 23. Nc3 Qa5 24. Qd3 Ra8 25. Kc1 d5 26. exd5 Qa1+ 27. Nb1 Bb4 28. Qxb3 Rc8+ 29. Qc2 Rxc2+ 30. Kxc2 Qa4+ 31. b3 Qa2+ 32. Kd3 Qxb3+ 33. Ke2 Qc2+ 34. Nd2 e4 35. Ke3 Qd3+ 36. Kf4 Bxd2+ 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "De Bode, Christian"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "150"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. Re1 Bg4 7. c3 Be7 8. d4 0-0 9. Qd3 b5 10. Bb3 Bxf3 11. gxf3 Nh5 12. Bd5 Bg5 13. Bxc6 Bxc1 14. Qc2 Nf4 15. Kh1 Qh4 16. Rg1 Qh3 17. Nd2 Bxd2 18. Rg3 Qh6 19. Qxd2 Rab8 20. Rag1 g6 21. Bd5 Qg7 22. Rg4 Nxd5 23. exd5 Rfe8 24. dxe5 Rxe5 25. f4 Re7 26. f5 Qf6 27. Qd3 Rbe8 28. fxg6 hxg6 29. f4 Re1 30. f5 Rxg1+ 31. Rxg1 Kg7 32. fxg6 fxg6 33. Rf1 Qe5 34. Qf3 Qe4 35. Kg2 Re5 36. Qxe4 Rxe4 37. Kf3 Re5 38. Rd1 Kf6 39. b3 g5 40. c4 bxc4 41. bxc4 g4+ 42. Kf2 Re4 43. c5 Ra4 44. cxd6 Rxa2+ 45. Kg3 cxd6 46. Kxg4 Rxh2 47. Ra1 Ke5 48. Kf3 Kxd5 49. Rxa6 Rh8 50. Ke3 Re8+ 51. Kd3 Ke5 52. Ra1 Rg8 53. Ra5+ d5 54. Rb5 Rg3+ 55. Kd2 Ke4 56. Rb8 Rg2+ 57. Kd1 d4 58. Rh8 Kd3 59. Rh3+ Kc4 60. Ra3 Rh2 61. Ra4+ Kc3 62. Ra3+ Kb4 63. Ra8 Rg2 64. Ra7 Kb3 65. Ra8 Kc4 66. Ra4+ Kd3 67. Ra3+ Ke4 68. Rh3 Ra2 69. Rh8 Kd3 70. Rh3+ Kc4 71. Rg3 d3 72. Rg8 Ra1+ 73. Kd2 Ra5 74. Rg4+ Kb5 75. Rg5+ Kb6 1/2-1/2

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "8"]
[White "Van Duijvenbode, Harrie"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B75"]
[PlyCount "61"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Nc6 7. f3 Bg7 8. Be3 Bd7 9. Qd2 a6 10. Bb3 Rc8 11. g4 Qa5 12. 0-0-0 Ne5 13. Bh6 0-0 14. Bxg7 Kxg7 15. h4 b5 16. h5 b4 17. Nd5 Rh8 18. Nxe7 Rce8 19. Nd5 Nxd5 20. Bxd5 Qc5 21. h6+ Kf8 22. Qf4 Ke7 23. Nb3 Qc7 24. g5 Kd8 25. Qe3 a5 26. f4 Ng4 27. Qd4 Be6 28. Bxe6 Rxe6 29. Qxh8+ Kd7 30. Qd4 a4 31. Nc5+ 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.04"]
[Round "6"]
[White "Den Heeten, Djurre"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "B24"]
[PlyCount "55"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. d3 Bd7 6. Nce2 g6 7. c3 Bg7 8. h3 Qb6 9. Rb1 Be6 10. b3 Qa5 11. Bd2 b5 12. e5 Nxe5 13. Bxa8 Nxd3+ 14. Kf1 c4 15. Bc6+ Kd8 16. Nd4 Nd5 17. bxc4 Nxc3 18. Nxe6+ fxe6 19. Bxc3 Qxc3 20. Rb3 Rf8 21. Qxd3 Qc1+ 22. Kg2 bxc4 23. Qb1 Rxf2+ 24. Kxf2 Qd2+ 25. Ne2 cxb3 26. Qxb3 Bd4+ 27. Kf1 Bb6 28. Qxe6 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "4"]
[White "Kamstra, Jippe"]
[Black "De Wind, Joris"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "81"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. 0-0 0-0 8. Be3 Nc6 9. Qd2 Bd7 10. f4 Rc8 11. f5 Ne5 12. Bh6 Bxh6 13. Qxh6 Qb6 14. Qe3 Nc6 15. Rad1 Nxd4 16. Qxd4 Qxb2 17. Rf3 Qb6 18. Qxb6 axb6 19. Rb1 gxf5 20. exf5 Rc5 21. g4 Rfc8 22. Rb3 Kf8 23. g5 Ne8 24. Ne4 Rxf5 25. Rxf5 Bxf5 26. Bd3 Rc6 27. Nf6 Bxd3 28. Nd7+ Kg7 29. cxd3 Rc1+ 30. Kf2 Rc2+ 31. Kg3 Rxa2 32. Nxb6 Nc7 33. Nc8 b5 34. Nxe7 Re2 35. Nf5+ Kg6 36. Nxd6 Re5 37. h4 Rd5 38. Nc8 Ne6 39. Ne7+ Kh5 40. Nxd5 Nd4 41. Nf4# 1-0

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "5"]
[White "Kamstra, Jippe"]
[Black "Leenhouts, Koen"]
[Result "0-1"]
[ECO "C14"]
[PlyCount "70"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bd3 Nxe4 6. Bxe7 Nxc3 7. bxc3 Qxe7 8. Nf3 c5 9. 0-0 c4 10. Be2 0-0 11. Re1 Nc6 12. Ne5 Nxe5 13. dxe5 Bd7 14. Qd2 Bc6 15. Red1 f6 16. f4 fxe5 17. fxe5 Rf5 18. Qd4 Qg5 19. Rf1 Rxe5 20. h4 Qe3+ 21. Qxe3 Rxe3 22. Bg4 Re8 23. Rae1 Rxe1 24. Rxe1 e5 25. Kf2 Kf7 26. g3 Ba4 27. Rb1 Bxc2 28. Rxb7+ Re7 29. Bc8 Rxb7 30. Bxb7 Ke6 31. Ke3 Kd6 32. g4 Kc5 33. g5 d4+ 34. cxd4+ exd4+ 35. Kd2 Bg6 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Van Eijk, Jasper"]
[Result "0-1"]
[ECO "B72"]
[PlyCount "132"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. g4 Nc6 9. g5 Ng4 10. Bxg4 Bxg4 11. Qxg4 Nxd4 12. Bxd4 Bxd4 13. Nd1 Qa5+ 14. c3 Rac8 15. 0-0 Bg7 16. Ne3 Qd8 17. h4 Rc5 18. Kh1 Qc8 19. Qxc8 Rfxc8 20. Nd5 Kf8 21. Rad1 Rb5 22. Rd2 Rc4 23. Re1 h6 24. f4 hxg5 25. hxg5 e6 26. Nf6 Ke7 27. e5 d5 28. Rf1 Rbc5 29. Rf3 Rc8 30. Kg2 b5 31. Kf2 Rh8 32. Ke3 Rh4 33. Rdf2 a5 34. Kd3 Bxf6 35. gxf6+ Kd7 36. Ke2 Re4+ 37. Kf1 Rg4 38. b3 Kc6 39. Rh2 Rgxf4 40. Rxf4 Rxf4+ 41. Kg2 Rf5 42. Rh7 Rg5+ 43. Kf2 Rxe5 44. Rxf7 Rf5+ 45. Ke2 g5 46. Rg7 Rxf6 47. Rxg5 Rh6 48. Rg2 Rh3 49. Kd2 Kc5 50. a3 e5 51. Kc2 b4 52. cxb4+ axb4 53. axb4+ Kxb4 54. Rg5 Re3 55. Kd2 d4 56. Rg8 Rxb3 57. Re8 Re3 58. Rc8 Rc3 59. Re8 Rc5 60. Kd3 Kb5 61. Re6 Kb4 62. Re8 Kb3 63. Re7 Rc3+ 64. Kd2 Re3 65. Rc7 e4 66. Rc8 Rh3 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "3"]
[White "Van Dommelen, Martin"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B24"]
[PlyCount "147"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 Nf6 5. d3 e6 6. f4 Be7 7. Nf3 a6 8. 0-0 Qb6 9. Kh1 Bd7 10. h3 e5 11. f5 Nd4 12. Nd2 Nb5 13. Nc4 Qc7 14. Na4 0-0-0 15. Nab6+ Kb8 16. a4 Na7 17. Bg5 Bc6 18. a5 Nc8 19. Na4 d5 20. Nxe5 Bxa4 21. Rxa4 Bd6 22. Ng4 Qd7 23. Ra1 Nxg4 24. Qxg4 h5 25. Qf3 f6 26. Bf4 d4 27. Rfe1 Be5 28. Rab1 Qa4 29. Bxe5+ fxe5 30. Ra1 Qb5 31. Reb1 Ne7 32. Qf2 Rd6 33. Qd2 Nc6 34. Bf1 Qb4 35. Qxb4 Nxb4 36. Rc1 g6 37. c3 Nc6 38. cxd4 cxd4 39. Bg2 Nb4 40. Ra3 Rc8 41. Rxc8+ Kxc8 42. g4 hxg4 43. hxg4 g5 44. Bf1 Rc6 45. Ra4 Nc2 46. Rc4 Kd7 47. Kg1 Rxc4 48. dxc4 Nb4 49. Kf2 Nc6 50. Ke1 Nxa5 51. Kd1 Nb3 52. Kc2 Nc5 53. Bg2 a5 54. Bf3 Kc6 55. b3 Nd7 56. Kb2 b5 57. cxb5+ Kxb5 58. Be2+ Kb4 59. Bd1 Nf6 60. Bf3 d3 61. Ka2 Kc3 62. Ka3 d2 63. Ka4 Nxe4 64. Kxa5 Kxb3 65. Kb5 Nf6 66. Kc5 Kc2 67. Kd6 e4 68. Be2 d1Q+ 69. Bxd1+ Kxd1 70. Ke5 e3 71. Kxf6 e2 72. Kxg5 e1Q 73. Kg6 Qe4 74. g5 0-1

[Event "NED-ch U16"]
[Site "Leiden"]
[Date "2000.05.01"]
[Round "1"]
[White "Hummel, Erik Jan"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B54"]
[PlyCount "64"]
[EventDate "2000.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. Be3 Nc6 9. Nd5 0-0 10. f3 Bd7 11. 0-0 Rb8 12. a4 e6 13. Nxc6 bxc6 14. Nc3 Rxb2 15. c5 Nd5 16. exd5 Bxc3 17. dxc6 Bxc6 18. Bxa6 dxc5 19. Bxc5 Qg5 20. Bf2 Rd2 21. Qb3 Bxf3 22. g3 Bxa1 23. Rxa1 Qf6 24. Rf1 Rfd8 25. Bb5 Rb2 26. Qe3 Rdd2 27. a5 Be2 28. Bxe2 Rxe2 29. Qa7 e5 30. Qa8+ Kg7 31. Qa7 e4 32. Qd4 Rxf2 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Kamstra, Jippe"]
[Black "Pots, Maurice"]
[Result "1-0"]
[ECO "B28"]
[PlyCount "53"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 a6 5. Nf3 Nc6 6. Be2 Nge7 7. 0-0 Nf5 8. Be3 b6 9. Nbd2 Be7 10. Nb3 c4 11. Nbd2 0-0 12. g4 Nh4 13. Nxh4 Bxh4 14. f4 Ne7 15. Nf3 Ng6 16. Qc2 f5 17. g5 h6 18. Nxh4 Nxh4 19. gxh6 gxh6 20. Kh1 Kh8 21. Rg1 Rg8 22. Bh5 Qe7 23. Rxg8+ Kxg8 24. Bf2 Bd7 25. Rg1+ Kh7 26. Bxh4 Qxh4 27. Qg2 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Hania, Renske"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A52"]
[PlyCount "99"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bf4 Bb4+ 6. Nbd2 Qe7 7. e3 Ngxe5 8. Be2 0-0 9. 0-0 Bxd2 10. Qxd2 d6 11. Nd4 Be6 12. Nxc6 Nxc6 13. Qc3 f6 14. Bf3 Bd7 15. Qb3 Rab8 16. c5+ Be6 17. Bd5 Bxd5 18. Qxd5+ Qf7 19. Qxf7+ Rxf7 20. cxd6 cxd6 21. Rfd1 Rd8 22. Rxd6 Rxd6 23. Bxd6 Rd7 24. Ba3 Kf7 25. Rc1 Rd2 26. Kf1 Rd5 27. Ke2 Ke6 28. Rd1 Rxd1 29. Kxd1 Ne5 30. Ke2 Nc4 31. Kd3 Nxa3 32. bxa3 Kd5 33. f3 b5 34. Kc3 a5 35. e4+ Kc5 36. f4 h6 37. Kd3 g6 38. g4 a4 39. h3 h5 40. gxh5 gxh5 41. h4 b4 42. axb4+ Kxb4 43. Kd4 Ka3 44. e5 fxe5+ 45. fxe5 Kxa2 46. e6 a3 47. e7 Kb2 48. e8Q a2 49. Qb5+ Ka1 50. Qe5 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Kamstra, Jippe"]
[Black "Van Elteren, Jesse"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "43"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. Bc4 Nbd7 4. Nge2 e5 5. d3 c6 6. f4 Be7 7. 0-0 0-0 8. Ng3 b5 9. Bb3 Nc5 10. fxe5 dxe5 11. Nf5 Nxb3 12. Nxe7+ Qxe7 13. axb3 Ng4 14. Qe2 f5 15. h3 Nh6 16. Bxh6 gxh6 17. exf5 Bxf5 18. Rae1 Rae8 19. g4 Bg6 20. Rxf8+ Qxf8 21. Ne4 Qe7 22. c3 1/2-1/2

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Huistra, Pieter"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "A51"]
[PlyCount "52"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. d5 Bc5 4. Nf3 d6 5. Nc3 h6 6. h3 0-0 7. e4 Nh7 8. Bd3 f5 9. Be3 Bxe3 10. fxe3 Ng5 11. Qe2 Na6 12. 0-0-0 Nc5 13. Nxg5 Qxg5 14. Bc2 Nxe4 15. Nxe4 fxe4 16. Bxe4 Bf5 17. Bd3 Bxd3 18. Rxd3 Rf7 19. Rf1 Raf8 20. Rxf7 Rxf7 21. Rd2 Qh4 22. c5 dxc5 23. d6 cxd6 24. Rxd6 Qb4 25. Qd3 Qe1+ 26. Kc2 Rf2+ 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Kamstra, Jippe"]
[Black "Beekhuis, Maarten"]
[Result "0-1"]
[ECO "C91"]
[PlyCount "76"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c5 12. Nbd2 Ne8 13. h3 Bd7 14. Nf1 f6 15. Ng3 g6 16. Nh2 h5 17. f4 exf4 18. Bxf4 h4 19. Nh1 g5 20. Bc1 Nc4 21. Nf2 Ne5 22. Nhg4 Ng7 23. Nh6+ Kh7 24. Nf5 Be8 25. Nxg7 Kxg7 26. Nd3 Nxd3 27. Bxd3 Bg6 28. Rf1 Qe8 29. Qg4 Bd8 30. Bd2 c4 31. Bc2 Bb6+ 32. Kh1 Ra7 33. Rfe1 Re7 34. b3 Re5 35. bxc4 Bh5 36. Qf5 Rxf5 37. exf5 Qd7 38. cxb5 axb5 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Porte, Henrik"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "A52"]
[PlyCount "68"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. f3 Nxe5 5. e4 Nbc6 6. Be3 Bb4+ 7. Nd2 d6 8. a3 Bxd2+ 9. Qxd2 Be6 10. Qc3 0-0 11. Nh3 Bxh3 12. gxh3 Nxf3+ 13. Ke2 Nce5 14. Bg2 Nh4 15. Rhg1 Qe7 16. Bh1 Neg6 17. Bg5 f6 18. Bxh4 Nxh4 19. Bf3 Nxf3 20. Qxf3 f5 21. Kd3 Qxe4+ 22. Qxe4 fxe4+ 23. Kxe4 Rae8+ 24. Kd3 Rf2 25. Rg4 Rxb2 26. Rag1 g6 27. Rf1 Rxh2 28. Rgf4 Rxh3+ 29. Kd2 Re7 30. a4 Ra3 31. Rf8+ Kg7 32. Rb8 b6 33. Rff8 Rxa4 34. Rg8+ Kh6 0-1

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Kamstra, Jippe"]
[Black "Andriessen, Marc"]
[Result "1-0"]
[ECO "B58"]
[PlyCount "49"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 6. Be3 Nc6 7. Be2 g6 8. Qd2 h5 9. 0-0 Bg7 10. f4 Ng4 11. Nf3 Nxe3 12. Qxe3 Bg4 13. Kh1 Bxc3 14. Qxc3 Rg8 15. h3 Bxf3 16. Bxf3 Qb6 17. Rad1 Qb4 18. Rd3 Rc8 19. Rfd1 Qxc3 20. Rxc3 Kd7 21. e5 g5 22. Bxh5 Rc7 23. Bxf7 Rf8 24. e6+ Kd8 25. fxg5 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Koster, Ramon H"]
[Black "Kamstra, Jippe"]
[Result "1-0"]
[ECO "A29"]
[PlyCount "45"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 d5 3. cxd5 Nxd5 4. Bg2 e5 5. Nc3 Be6 6. Nf3 Nc6 7. 0-0 Be7 8. d4 Nxc3 9. bxc3 e4 10. Ne1 Bf5 11. f3 Qd5 12. fxe4 Bxe4 13. c4 Qxc4 14. Bxe4 Nxd4 15. Bd3 Qc5 16. Be3 0-0-0 17. Rc1 Qb6 18. Nf3 Bf6 19. Rc4 Rhe8 20. Bxd4 Bxd4+ 21. Nxd4 Rxd4 22. Bf5+ Rd7+ 23. Kg2 1-0

[Event "NED U16 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Kamstra, Jippe"]
[Black "Jonk, Geert Jan"]
[Result "1-0"]
[ECO "B92"]
[PlyCount "73"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Nbd7 8. 0-0 h6 9. Be3 Qc7 10. Qd2 b5 11. a4 b4 12. Nd5 Nxd5 13. exd5 Nf6 14. Rac1 Bb7 15. Qxb4 Nxd5 16. Qd2 Be7 17. c4 Nxe3 18. Qxe3 0-0 19. Bd3 f5 20. c5 e4 21. cxd6 Qxd6 22. Bc4+ Kh8 23. Rcd1 Qc7 24. Nd2 Bg5 25. Qe2 Qc6 26. Nb3 Qc7 27. Nd4 Qe7 28. Ne6 Rf6 29. Nxg5 hxg5 30. Rd4 f4 31. Rfd1 Qe5 32. Rd8+ Rxd8 33. Rxd8+ Kh7 34. Qh5+ Rh6 35. Bg8+ Kh8 36. Bf7+ Kh7 37. Bg6# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Biemans, Erik"]
[Black "Kamstra, Jippe"]
[Result "0-1"]
[ECO "B31"]
[PlyCount "86"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Bb5 Bg7 6. Nf3 Qa5+ 7. Qd2 Qxb5 8. Nc3 Bxc3 9. Qxc3 Qb4 10. Bd2 Qxe4+ 11. Kd1 Nf6 12. Re1 Qf5 13. Bg5 0-0 14. Bh6 Rd8 15. h3 d5 16. g4 d4 17. Qxc6 bxc6 18. gxf5 Bxf5 19. Rxe7 d3 20. cxd3 Rxd3+ 21. Ke2 Re8 22. Rxe8+ Nxe8 23. Nh4 Rd5 24. Nxf5 Rxf5 25. Be3 Re5 26. Rc1 Re6 27. Rc3 Nc7 28. Kf1 Nd5 29. Ra3 Nxe3+ 30. fxe3 Kg7 31. Ke2 Re7 32. Ra6 Rb7 33. b3 Rc7 34. Kf3 f5 35. Ra4 Kf6 36. Rd4 c5 37. Rc4 h5 38. b4 Ke5 39. Rxc5+ Rxc5 40. bxc5 g5 41. h4 g4+ 42. Kg3 Kd5 43. Kf4 Kxc5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Kamstra, Jippe"]
[Black "Broersen, Sjors"]
[Result "1/2-1/2"]
[ECO "B54"]
[PlyCount "76"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf5 d6 7. Bg5 Bxf5 8. exf5 Be7 9. Bc4 Rc8 10. Bxf6 Bxf6 11. Qh5 0-0 12. 0-0 Nd4 13. Bb3 Qd7 14. f4 exf4 15. Rxf4 Nxb3 16. cxb3 d5 17. Rd1 d4 18. Ne4 Be5 19. Rh4 h6 20. Rg4 Rc6 21. Rf1 Qe7 22. b4 a6 23. a4 b5 24. axb5 axb5 25. f6 Bxf6 26. Qxh6 g6 27. Qd2 Be5 28. Ng3 Bxg3 29. Rxg3 Rc4 30. Rh3 Qe5 31. Re1 Qf6 32. b3 Rc3 33. Rd3 Rxd3 34. Qxd3 Qb6 35. Re5 Rd8 36. h4 Qd6 37. Rc5 Qf4 38. g3 Qd6 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Kamstra, Jippe"]
[Black "Chan, Chung Hong"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "62"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. c3 Qb6 6. Be2 Bd7 7. 0-0 h6 8. Na3 Be7 9. Nc2 0-0-0 10. a3 c4 11. Nb4 f5 12. b3 cxb3 13. Be3 Na5 14. c4 dxc4 15. d5 Bc5 16. Bxc5 Qxc5 17. Nd4 Ne7 18. d6 Nec6 19. Ndxc6 Bxc6 20. Bf3 Bb5 21. a4 Bc6 22. Nxc6 Nxc6 23. Bxc6 Qxc6 24. Qd4 c3 25. Rac1 c2 26. Qxa7 Kd7 27. Rxc2 bxc2 28. Rc1 Ra8 29. Qe3 Rxa4 30. Qg3 Rg4 31. Qh3 Qd5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Kamstra, Jippe"]
[Black "Poolman, B."]
[Result "1-0"]
[ECO "C45"]
[PlyCount "91"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Bb6 6. Nc3 d6 7. Bb5 Bd7 8. 0-0 Nf6 9. Nxc6 bxc6 10. Bxb6 axb6 11. Bd3 0-0 12. Qe2 Qe7 13. Rae1 Rfe8 14. h3 b5 15. a3 Rab8 16. Nb1 c5 17. b3 c6 18. Nd2 Ra8 19. Ra1 Ra7 20. f4 h6 21. Rf3 Rea8 22. Nb1 Qe6 23. c4 bxc4 24. bxc4 Rb7 25. Rg3 Re8 26. Nd2 Rb2 27. Qe3 d5 28. e5 d4 29. Qe2 Nh7 30. Qe4 g6 31. Nf3 Nf6 32. Qe1 Nh5 33. Rg4 Qe7 34. f5 Rb3 35. Qd2 Rxd3 36. Qxd3 Bxf5 37. Qxf5 Ng7 38. Qd3 Qb7 39. Rb1 Qc7 40. Qb3 Qa5 41. Rf4 Ne6 42. Rf6 Re7 43. Qb8+ Kg7 44. Qd6 Re8 45. Qd7 Rf8 46. Rxe6 1-0

