[Event "NED-ch sf (Women)"]
[Site "Hilversum"]
[Date "2008.01.06"]
[Round "1.2"]
[White "Bensdorp, Laura"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B98"]
[WhiteElo "2098"]
[BlackElo "1950"]
[PlyCount "94"]
[EventDate "2008.01.05"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nc6 10. Be2 h6 11. Bh4 Nxd4 12. Rxd4 Bd7 13. Qg3 Rg8 14. e5 dxe5 15. fxe5 Bc5 16. Rdd1 Nh7 17. Qd3 Ng5 18. Bxg5 hxg5 19. Bh5 g6 20. Ne4 0-0-0 21. Bf3 Bc6 22. Nd6+ Bxd6 23. exd6 Qb6 24. Qc3 Kb8 25. Bxc6 Qxc6 26. Qxc6 bxc6 27. c4 c5 28. Rhe1 Kb7 29. Re5 Kc6 30. d7 Rh8 31. h3 Rh4 32. b3 Rd4 33. Rxd4 cxd4 34. Rxg5 Rxd7 35. Kd2 Re7 36. Ra5 Kb6 37. b4 e5 38. Rd5 Re6 39. a4 f5 40. a5+ Kc6 41. Rc5+ Kb7 42. Rd5 f4 43. Ke2 Kc7 44. Kd2 g5 45. Ke2 Re7 46. Kd2 Kc6 47. Ke2 Kc7 1/2-1/2

[Event "NED-ch sf (Women)"]
[Site "Hilversum"]
[Date "2008.01.05"]
[Round "1.1"]
[White "Groot, Marjoke"]
[Black "Bensdorp, Laura"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "1950"]
[BlackElo "2098"]
[PlyCount "72"]
[EventDate "2008.01.05"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Qd2 b5 8. Nge2 b4 9. Nd1 Qb6 10. f4 Nh6 11. h3 f5 12. 0-0 0-0 13. Re1 e6 14. c3 bxc3 15. bxc3 Rd8 16. d4 Na5 17. Bf2 Nc4 18. Qc2 Qa5 19. Ne3 Na3 20. Qc1 fxe4 21. Bxe4 d5 22. Bd3 c4 23. Bc2 Bd7 24. Qd2 Rb2 25. Rec1 Ba4 26. Qd1 Nxc2 27. Nxc2 Nf7 28. Rab1 Rdb8 29. f5 exf5 30. Nf4 Ng5 31. Rxb2 Rxb2 32. Qe1 Ne4 33. Nb4 Rxf2 34. Nfxd5 g5 35. Ne7+ Kf7 36. Nxf5 Qxf5 0-1

[Event "Arnhem op"]
[Site "Arnhem"]
[Date "2007.08.31"]
[Round "1"]
[White "Groot, Marjoke"]
[Black "Rothuis, Vincent"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1895"]
[BlackElo "2441"]
[PlyCount "52"]
[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 g6 2. Nc3 Bg7 3. Nge2 a6 4. g3 h5 5. Bg2 h4 6. d4 h3 7. Bf1 b5 8. Nf4 Bb7 9. Rg1 b4 10. Ncd5 Nc6 11. e5 e6 12. Ne3 d6 13. d5 Nxe5 14. Be2 Nf6 15. dxe6 0-0 16. exf7+ Rxf7 17. Nxh3 Ne4 18. f4 Nc6 19. Bc4 Nd4 20. Bxf7+ Kxf7 21. f5 Qh8 22. Qg4 Re8 23. Kf1 Nf3 24. Rg2 gxf5 25. Nxf5 Nf6 26. Qxg7+ Qxg7 0-1

[Event "NED-ch sf (Women)"]
[Site "Leeuwarden"]
[Date "2004.02.29"]
[Round "1.2"]
[White "Otten, Colleen"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2085"]
[PlyCount "81"]
[EventDate "2004.02.28"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 098 Extra"]
[Source "ChessBase"]
[SourceDate "2004.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2004.03.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. 0-0 a6 5. Bxc6+ bxc6 6. h3 d5 7. Re1 g6 8. d4 dxe4 9. Rxe4 Bf5 10. Re1 Bg7 11. Be3 Rb8 12. b3 e6 13. c3 cxd4 14. Bxd4 Bxd4 15. Nxd4 Ne7 16. Nd2 c5 17. Nxf5 Nxf5 18. Ne4 Qc7 19. Nf6+ Kf8 20. Nd7+ Ke7 21. Nxb8 Rxb8 22. Qd3 a5 23. Rad1 Rc8 24. Re4 h6 25. Ra4 Ra8 26. b4 cxb4 27. cxb4 Ra7 28. Rxa5 Rxa5 29. bxa5 Qxa5 30. Qd7+ Kf8 31. Qd8+ Qxd8 32. Rxd8+ Ke7 33. Rb8 Kd6 34. g4 Nd4 35. Rh8 Ke5 36. a4 Kf4 37. a5 Nc6 38. a6 f5 39. gxf5 exf5 40. Rxh6 Kg5 41. Rh7 1-0

[Event "NED-ch sf (Women)"]
[Site "Leeuwarden"]
[Date "2004.02.28"]
[Round "1.1"]
[White "Groot, Marjoke"]
[Black "Otten, Colleen"]
[Result "0-1"]
[ECO "B15"]
[BlackElo "2085"]
[PlyCount "120"]
[EventDate "2004.02.28"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "CBM 098 Extra"]
[Source "ChessBase"]
[SourceDate "2004.03.10"]
[SourceVersion "2"]
[SourceVersionDate "2004.03.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 c6 3. Nc3 d5 4. e5 Qd7 5. Bd3 b6 6. f4 h5 7. Be3 e6 8. Nce2 Ba6 9. b3 Bxd3 10. Qxd3 Nh6 11. Nf3 Nf5 12. Bd2 a5 13. Kf2 Na6 14. c3 b5 15. a3 c5 16. Rhc1 c4 17. Qc2 cxb3 18. Qxb3 a4 19. Qb2 Be7 20. Ne1 0-0 21. Nd3 Rfc8 22. Rg1 Kf8 23. h3 h4 24. Nb4 Rc4 25. Rab1 Nb8 26. Nc2 Ra5 27. Ne3 Nxe3 28. Kxe3 Qb7 29. Nc1 Nd7 30. Nd3 Nb6 31. Kf3 Rc7 32. Nb4 Nc4 33. Qa2 Ra8 34. Rgd1 Rac8 35. Be1 Na5 36. Rd3 Nb3 37. Qb2 Ke8 38. Qe2 Kd7 39. Qb2 Na5 40. Qe2 Nc4 41. Ra1 Rh8 42. Ra2 Qa8 43. Rd1 Qg8 44. Kf2 Rh5 45. Rb1 Rf5 46. Qf3 Bxb4 47. Rxb4 g5 48. Kg1 Rxf4 49. Qd3 Rb7 50. Bd2 Rf5 51. Bc1 g4 52. Rf2 Rxf2 53. Kxf2 g3+ 54. Ke2 Kc6 55. Rb1 f6 56. exf6 Rf7 57. Bd2 Rxf6 58. Rf1 Rxf1 59. Kxf1 Qf8+ 60. Qf3 Nxd2+ 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "8.2"]
[White "Groot, Marjoke"]
[Black "Van Run, Rieke"]
[Result "1/2-1/2"]
[ECO "C92"]
[PlyCount "24"]
[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. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Bb7 10. d4 h6 11. a4 Nh7 12. Nbd2 Ng5 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "9.4"]
[White "Groot, Marjoke"]
[Black "Van Zutphen, Amy"]
[Result "1-0"]
[ECO "C90"]
[PlyCount "57"]
[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 b5 6. Bb3 d6 7. Re1 Bg4 8. c3 Be7 9. d3 0-0 10. Be3 Qd7 11. Nbd2 Nd8 12. Qc2 a5 13. a4 b4 14. d4 exd4 15. cxd4 Bxf3 16. Nxf3 Qc8 17. Rac1 c6 18. e5 Ng4 19. Bg5 Qd7 20. Qe4 Bxg5 21. Nxg5 g6 22. e6 fxe6 23. Qxg4 d5 24. Re3 Qe7 25. Nxe6 Nxe6 26. Qxe6+ Qxe6 27. Rxe6 Rfe8 28. Rexc6 Re2 29. Bxd5+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.03"]
[Round "7.2"]
[White "Visschedijk, Marijn"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2033"]
[PlyCount "43"]
[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. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Be2 e6 8. 0-0 Nf6 9. h3 Bh5 10. Nc3 Qa5 11. Be3 Be7 12. a3 Nd5 13. Ne4 0-0 14. b4 Qd8 15. Rc1 Rc8 16. Qb3 Bf6 17. Nxf6+ Nxf6 18. Rfd1 Nd5 19. Qb2 h6 20. b5 Nce7 21. Rxc8 Nxc8 22. Rc1 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.02"]
[Round "6.4"]
[White "Van Weersel, Arlette"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B20"]
[PlyCount "114"]
[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. c4 Nc6 3. Ne2 d6 4. d4 e5 5. d5 Nd4 6. Nxd4 cxd4 7. Bd3 Be7 8. 0-0 g5 9. b4 a5 10. bxa5 Rxa5 11. Bd2 Ra7 12. a4 Bd7 13. Ra3 h6 14. Bb4 b6 15. Nd2 Qa8 16. Bc2 Nf6 17. Qa1 0-0 18. Rb1 Rb8 19. Rb2 Qb7 20. Rba2 Rba8 21. Nb3 Ne8 22. a5 Bd8 23. axb6 Bxb6 24. Rxa7 Rxa7 25. Rxa7 Qxa7 26. Qxa7 Bxa7 27. Na5 Kf8 28. Nb7 Bb8 29. c5 dxc5 30. Bxc5+ Kg7 31. Bd3 Bc8 32. Na5 Bd6 33. Ba7 Nc7 34. Nc4 Bf8 35. Nxe5 f6 36. Nf3 Bd6 37. Bxd4 Kf7 38. h3 Bd7 39. Nd2 Bb4 40. Nf3 Bd6 41. Bb6 h5 42. Nd4 Be5 43. Kf1 h4 44. f3 Ke7 45. Bc5+ Kd8 46. Bc4 Ne8 47. Ne6+ Bxe6 48. dxe6 Bd6 49. Bxd6 Nxd6 50. Bd5 Ne8 51. Kf2 Ng7 52. g3 hxg3+ 53. Kxg3 Nh5+ 54. Kg4 Nf4 55. h4 gxh4 56. Kxh4 Ke7 57. Kg4 Ng6 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "5.2"]
[White "Groot, Marjoke"]
[Black "Bensdorp, Marlies"]
[Result "0-1"]
[ECO "C06"]
[BlackElo "2117"]
[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. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ndf3 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. Ne2 Bd6 11. 0-0 0-0 12. Re1 Qc7 13. Ng3 Bd7 14. a3 Rae8 15. b4 e5 16. dxe5 Nxe5 17. Be2 Nxf3+ 18. Bxf3 Ba4 19. Qd2 Bf4 20. Re3 Bxe3 21. fxe3 Bb3 22. Bb2 Qd7 23. Bxf6 Rxf6 24. Ne4 Rg6 25. Nc5 Qf5 26. Kh1 Bc4 27. Nxb7 Qe5 28. Rd1 Qxe3 29. Bxd5+ Bxd5 30. Qxd5+ Kh8 31. h3 Qf2 32. Nd6 Rf8 33. Qd2 Rxg2 34. Qxf2 Rgxf2 35. Nb5 Ra2 36. Nxa7 Rxa3 37. Nc6 Rxh3+ 38. Kg2 Rc3 39. b5 Rb3 40. Na7 h6 41. Rd7 Kg8 42. Rd5 Ra8 43. Rd7 Rxa7 44. Rxa7 Rxb5 45. Kg3 Rb4 46. Kf3 Kh7 47. Kg3 h5 48. Kh3 Kh6 49. Kg3 g6 50. Ra8 h4+ 51. Kh3 Kh5 52. Rh8+ Kg5 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.05.01"]
[Round "4.3"]
[White "Groot, Marjoke"]
[Black "Hania, Renske"]
[Result "1-0"]
[ECO "C08"]
[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 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. dxc5 Bxc5 7. Nb3 0-0 8. Nxc5 Qa5+ 9. c3 Qxc5 10. Be3 Qe7 11. h3 Re8 12. Bb5 Nc6 13. 0-0 a6 14. Ba4 Be6 15. Bg5 h6 16. Bh4 g5 17. Bg3 Ne4 18. Bh2 b5 19. Bb3 Na5 20. Nd4 Nxb3 21. axb3 b4 22. Nc6 Qb7 23. Nxb4 a5 24. Nd3 Red8 25. f3 Nd6 26. Be5 Nf5 27. Nc5 Qa7 28. Bd4 Qe7 29. Re1 Qd6 30. Nb7 Qg3 31. Bf2 Qf4 32. Nxd8 Rxd8 33. Rxa5 h5 34. Ra4 Qd6 35. Qd2 f6 36. Qe2 Bd7 37. Qa6 Bxa4 38. Qxd6 Nxd6 39. bxa4 Nc4 40. b3 Ne5 41. Bd4 Re8 42. Kf1 Kf7 43. a5 h4 44. a6 Ke6 45. b4 Kf5 46. b5 Ra8 47. Bxe5 fxe5 48. Rb1 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "2.2"]
[White "Groot, Marjoke"]
[Black "Wortel, Meike"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "82"]
[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. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. Nge2 e6 6. d4 Nc6 7. dxc5 dxc5 8. Qxd8+ Nxd8 9. Be3 b6 10. 0-0-0 Ne7 11. Nb5 0-0 12. e5 Ndc6 13. Bg5 f6 14. exf6 Bxf6 15. Bxf6 Rxf6 16. Rd6 Rxf2 17. Nf4 e5 18. Bxc6 Nxc6 19. Nd3 Rf7 20. Re1 Ba6 21. a4 Bxb5 22. axb5 Nd4 23. Nxe5 Re8 24. Nd3 Rxe1+ 25. Nxe1 Nxb5 26. Rd8+ Kg7 27. Nd3 Rf1+ 28. Kd2 c4 29. Rd7+ Kf6 30. Nb4 Rf2+ 31. Ke3 Rxh2 32. Rb7 h5 33. Nd5+ Ke5 34. Ne7 Rxc2 35. Nxg6+ Kf6 36. Nf4 Rxb2 37. Nxh5+ Kg5 38. Nf4 Rb3+ 39. Kf2 c3 40. Ne6+ Kf6 41. Nf4 c2 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.04.30"]
[Round "3.4"]
[White "Hagerop van Eijs, Isabelle"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B50"]
[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 Nc6 3. b3 d6 4. Nc3 Nf6 5. Bb5 Bd7 6. d4 cxd4 7. Nxd4 a6 8. Nxc6 Bxc6 9. Bxc6+ bxc6 10. Qf3 e6 11. Bg5 Be7 12. 0-0-0 d5 13. Kb1 a5 14. Rhe1 0-0 15. e5 Nd7 16. Bxe7 Qxe7 17. Rd4 f5 18. Qg3 Rfb8 19. Qf3 Nb6 20. Ka1 c5 21. Rd3 c4 22. Rd4 a4 23. Rb1 Qc5 24. Rh4 g6 25. b4 Qe7 26. Qh3 a3 27. Ne2 Nd7 28. c3 Nxe5 29. Nf4 Rb7 30. Re1 Qf6 31. Rh6 Nd3 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2002.04.29"]
[Round "1.5"]
[White "Greeuw, Sietske"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B88"]
[PlyCount "105"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. 0-0 a6 8. Re1 Bd7 9. a4 Be7 10. Be3 Rc8 11. Qe2 0-0 12. Rad1 Qc7 13. Bb3 Na5 14. h3 Nc4 15. Bc1 Rfd8 16. Nf3 Na5 17. Bg5 Nxb3 18. cxb3 h6 19. Be3 Bc6 20. Nd2 d5 21. exd5 Nxd5 22. Nxd5 Bxd5 23. Nc4 Bxc4 24. Rxd8+ Bxd8 25. bxc4 Qxc4 26. Qxc4 Rxc4 27. b3 Rc3 28. Rb1 Be7 29. Kf1 e5 30. Ke2 f5 31. g3 Kf7 32. Kd2 Bb4 33. Ke2 e4 34. Bd2 Rc2 35. Rd1 Rxd2+ 36. Rxd2 Bxd2 37. Kxd2 Ke6 38. Ke2 g5 39. Ke3 Ke5 40. Ke2 Kd4 41. Kd2 f4 42. gxf4 gxf4 43. h4 h5 44. a5 e3+ 45. fxe3+ fxe3+ 46. Ke2 Ke4 47. Kf1 Kd3 48. Ke1 e2 49. b4 Kc4 50. Kxe2 Kxb4 51. Kd3 Kxa5 52. Kc3 b5 53. Kb3 0-1

[Event "Hoogeveen Essent Amateur"]
[Site "Hoogeveen"]
[Date "2001.10.17"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Van Geffen, Ben"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "1841"]
[BlackElo "2026"]
[PlyCount "38"]
[EventDate "2001.10.12"]
[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 f5 4. d4 fxe4 5. Nxe5 Nxe5 6. dxe5 c6 7. Bc4 Qa5+ 8. Bd2 Qxe5 9. Qe2 d5 10. Bb3 Nf6 11. c3 Bd6 12. Be3 0-0 13. Nd2 Bg4 14. f3 exf3 15. gxf3 Rae8 16. 0-0-0 Qxe3 17. Qxe3 Rxe3 18. fxg4 Nxg4 19. Rdg1 Nf2 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "5"]
[White "Groot, Marjoke"]
[Black "Hijweegen, Claudia"]
[Result "1/2-1/2"]
[ECO "C06"]
[PlyCount "83"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Nb6 8. 0-0 Bd7 9. Nf3 cxd4 10. cxd4 Rc8 11. Bg5 Be7 12. Bxe7 Qxe7 13. Nc3 a6 14. Rc1 0-0 15. Bb1 f6 16. Qd3 f5 17. Nd2 Nb4 18. Qh3 Nc4 19. Nxc4 Rxc4 20. Ne2 Bb5 21. Qe3 Rxc1 22. Rxc1 Bxe2 23. Qxe2 Nc6 24. Qd2 Qd8 25. Rc5 Qb6 26. Qc3 Qb4 27. Qxb4 Nxb4 28. Rc7 Nc6 29. Rxb7 Nxd4 30. Rc7 Rb8 31. b3 Rb6 32. g3 Nf3+ 33. Kg2 Nxe5 34. f4 Rc6 35. Re7 Ng4 36. h3 Ne3+ 37. Kf3 Nd1 38. Bd3 Nb2 39. Ke2 Nxd3 40. Kxd3 Kf8 41. Ra7 h6 42. a4 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "3"]
[White "Groot, Marjoke"]
[Black "Paulis, Winifred"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "44"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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 e6 5. f4 Bd7 6. Nf3 g6 7. Ne2 Bg7 8. c3 Nge7 9. d4 cxd4 10. Nfxd4 a6 11. Be3 Qc7 12. 0-0 h5 13. Qb3 Na5 14. Qb4 Nc4 15. Bf2 a5 16. Nb5 Qc6 17. Qxc4 Qxb5 18. Qxb5 Bxb5 19. Rfe1 Nc6 20. Rad1 Ke7 21. Bb6 Rac8 22. Bf3 Kd7 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "9"]
[White "Groot, Marjoke"]
[Black "Veenstra, Petra"]
[Result "1-0"]
[ECO "C92"]
[BlackElo "2098"]
[PlyCount "67"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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 d6 8. h3 0-0 9. c3 Bb7 10. d4 Re8 11. Ng5 Rf8 12. Nf3 Re8 13. a4 Bf8 14. Bg5 h6 15. Bh4 g5 16. Bg3 exd4 17. e5 Nh5 18. e6 fxe6 19. Bxe6+ Kh8 20. cxd4 Nxg3 21. d5 Ne7 22. fxg3 Ng6 23. Qd3 Qf6 24. Nc3 c6 25. Bd7 Rxe1+ 26. Rxe1 Ne5 27. Nxe5 dxe5 28. Rf1 Qg7 29. dxc6 Bc8 30. Qd5 Bxd7 31. cxd7 Rd8 32. Rf7 Bc5+ 33. Kh2 Qg6 34. Qxe5+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "7"]
[White "Groot, Marjoke"]
[Black "Wezenaar, Femke"]
[Result "1-0"]
[ECO "A04"]
[PlyCount "51"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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 g6 4. Bg2 Bg7 5. Nge2 d6 6. 0-0 e6 7. d3 Nge7 8. Be3 0-0 9. Qd2 Nd4 10. Nd1 Rb8 11. c3 Nxe2+ 12. Qxe2 b5 13. Qd2 Ba6 14. f4 b4 15. Nf2 Qc7 16. e5 dxe5 17. fxe5 Bxe5 18. Ng4 Bg7 19. Nh6+ Bxh6 20. Bxh6 Rfd8 21. Qg5 f5 22. Qf6 Nd5 23. Qxe6+ Qf7 24. Bxd5 Rxd5 25. Qxa6 Rb6 26. Qc8+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "6"]
[White "Hamelink, Desiree"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2112"]
[PlyCount "87"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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 d6 6. Bg5 e6 7. Be2 h6 8. Be3 a6 9. a4 Bd7 10. 0-0 Qc7 11. Nb3 Be7 12. a5 Rc8 13. f4 0-0 14. Bf3 Nb4 15. Qd2 Bc6 16. Rac1 d5 17. e5 Ne4 18. Bxe4 dxe4 19. Bb6 Qb8 20. Qe2 Nd5 21. Nxd5 exd5 22. Qg4 Bd8 23. Nd4 Kh7 24. Nf5 g6 25. Nd6 Bxb6+ 26. axb6 Rcd8 27. f5 Bd7 28. fxg6+ fxg6 29. Qh4 g5 30. Qh5 Be6 31. Nf7 Bxf7 32. Rxf7+ Rxf7 33. Qxf7+ Kh8 34. Qf6+ Kh7 35. Rf1 Rg8 36. Qf7+ Rg7 37. Qxd5 Qc8 38. Qxe4+ Kh8 39. Rf6 Qc5+ 40. Kh1 Qa5 41. Rxh6+ Kg8 42. Qc4+ Rf7 43. Qc8+ Rf8 44. Qe6+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "1"]
[White "Hania, Renske"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "D53"]
[PlyCount "89"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Qc2 Nc6 6. e3 dxc4 7. Bxc4 e5 8. Bxf6 Bxf6 9. d5 Na5 10. Bd3 Be7 11. a3 b6 12. b4 Nb7 13. Nb5 Bd6 14. Rc1 a5 15. Nxc7+ Bxc7 16. Bb5+ Bd7 17. Bxd7+ Qxd7 18. Qxc7 Qxd5 19. Nf3 axb4 20. axb4 Qe4 21. 0-0 0-0 22. Nxe5 Nd8 23. Qc3 Ra4 24. Nd7 Re8 25. Nxb6 Rxb4 26. Nc4 Qe7 27. Rfd1 Rb8 28. Nd6 Rf8 29. Nf5 Qg5 30. Rd5 Ne6 31. Rcd1 Rbd8 32. Rxd8 Rxd8 33. Rxd8+ Qxd8 34. h3 g6 35. Nd4 Nxd4 36. Qxd4 Qc7 37. Qd2 Qb8 38. f3 Qb1+ 39. Kf2 Qb8 40. e4 Qe5 41. Qd8+ Kg7 42. Qd2 Qc5+ 43. Qe3 Qc2+ 44. Kg3 Qc7+ 45. f4 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "8"]
[White "Van Weersel, Arlette"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "A36"]
[PlyCount "65"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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. c4 e5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nge2 Nge7 7. 0-0 0-0 8. a3 d6 9. Rb1 a5 10. d3 f5 11. f4 fxe4 12. Nxe4 Nf5 13. fxe5 Nxe5 14. Bg5 Qc7 15. N2c3 Be6 16. Nb5 Qd7 17. g4 Nxg4 18. Qxg4 Ne3 19. Rxf8+ Rxf8 20. Qe2 Nxg2 21. Qxg2 Bh3 22. Qe2 Bg4 23. Qd2 d5 24. Nf2 Be6 25. Bh6 Bxh6 26. Qxh6 dxc4 27. dxc4 Bxc4 28. Nc3 Qd4 29. Nce4 Ba2 30. Rd1 Qxb2 31. Rd7 Bf7 32. Ng5 Qb1+ 33. Kg2 1-0

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "2"]
[White "Versmissen, Jorie"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "82"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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. c3 d5 4. Bb5 Qb6 5. exd5 Qxb5 6. dxc6 Qxc6 7. 0-0 Bg4 8. Ne5 Bxd1 9. Nxc6 Bh5 10. Ne5 0-0-0 11. f4 f6 12. Nf3 e6 13. Na3 Ne7 14. Nc2 Nc6 15. h3 Bd6 16. d4 cxd4 17. Ncxd4 Bc5 18. Be3 Bxf3 19. Rxf3 Nxd4 20. cxd4 Bxd4 21. Rc1+ Kb8 22. Bxd4 Rxd4 23. Rg3 g6 24. Re3 Re8 25. g3 Rd2 26. Rec3 Rxb2 27. Rc7 Rxa2 28. Rxh7 Rc8 29. Rd1 g5 30. fxg5 fxg5 31. Rg7 Ra5 32. Rd2 Rb5 33. Re7 Re5 34. Rdd7 Rb5 35. Rxe6 Rb2 36. Re1 a5 37. Rd5 a4 38. Ra5 b5 39. Ra6 Kb7 40. Rg6 a3 41. Re7+ Rc7 0-1

[Event "NED-ch U20 Girls"]
[Site "Nijmegen"]
[Date "2001.??.??"]
[Round "4"]
[White "Wortel, Marten"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2302"]
[PlyCount "83"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[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 d6 6. f3 e6 7. Be3 a6 8. Qd2 Bd7 9. 0-0-0 Rc8 10. g4 Be7 11. h4 b5 12. Kb1 b4 13. Nce2 d5 14. g5 Nxd4 15. Nxd4 Nh5 16. exd5 Ng3 17. dxe6 Bxe6 18. Nxe6 Qxd2 19. Bxd2 Nxh1 20. Bxa6 Rb8 21. Nc7+ Kd7 22. Bf4+ Kc6 23. Rxh1 Bd6 24. Nd5 Ra8 25. Bc4 Bxf4 26. Nxf4 Rad8 27. Bd3 h6 28. g6 fxg6 29. Nxg6 Rhe8 30. Be4+ Kc5 31. Kc1 Rd6 32. Nf4 Ra6 33. Nd3+ Kc4 34. Bd5+ Kb5 35. Rg1 Re7 36. Rg4 Rf6 37. Rxb4+ Ka6 38. Re4 Rxe4 39. Bxe4 Kb6 40. b4 Rf8 41. a4 Rg8 42. h5 1-0

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.26"]
[Round "2.2"]
[White "Bruinenberg, Carla"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2095"]
[PlyCount "66"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 c6 6. e3 0-0 7. Rc1 Nbd7 8. Bd3 dxc4 9. Bxc4 Re8 10. Bd3 c5 11. h3 a6 12. 0-0 b5 13. Ng5 h6 14. Nge4 c4 15. Bb1 Bb7 16. Qf3 Nxe4 17. Bxe4 Bxe4 18. Nxe4 Nf6 19. Nxf6+ Bxf6 20. Rfd1 Qe7 21. a3 Rac8 22. Qg3 Kh7 23. Bd6 Qb7 24. Qg4 Red8 25. Bg3 Rd7 26. f4 Qe4 27. Re1 Rb7 28. Qe2 Rb6 29. Red1 Rbc6 30. Be1 Rd8 31. Qf3 Qd5 32. Bc3 Qxf3 33. gxf3 Rcd6 1/2-1/2

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.26"]
[Round "2.4"]
[White "Bruinenberg, Carla"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2095"]
[PlyCount "105"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. cxd5 exd5 8. Bd3 c6 9. h3 Nb6 10. 0-0 h6 11. Rc1 Nc4 12. Qc2 Nd6 13. Ne5 Be6 14. Bh2 Nd7 15. f4 Nb6 16. f5 Bc8 17. b3 Nd7 18. Nxd7 Qxd7 19. Qf2 Bg5 20. Rce1 Re8 21. h4 Bf6 22. g4 Qe7 23. Bg3 Ne4 24. Nxe4 dxe4 25. Bc4 b5 26. Be2 Qa3 27. Bd1 c5 28. Bd6 Be7 29. Bxe7 Rxe7 30. f6 Rb7 31. fxg7 Kxg7 32. Qf6+ Kh7 33. g5 Rc7 34. Qxh6+ Kg8 35. g6 f5 36. Qg5 Rc6 37. Qd8+ Kg7 38. Qe7+ Kxg6 39. Qe8+ Kh7 40. Qxc6 Qa6 41. Qxa6 Bxa6 42. Rxf5 cxd4 43. exd4 Re8 44. Bc2 Bc8 45. Re5 Rg8+ 46. Rg5 Rf8 47. Bxe4+ Kh8 48. Rf1 Rd8 49. d5 Re8 50. Rf4 Bh3 51. Kf2 a5 52. Kg3 Bc8 53. d6 1-0

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.26"]
[Round "2.3"]
[White "Groot, Marjoke"]
[Black "Bruinenberg, Carla"]
[Result "0-1"]
[ECO "C08"]
[BlackElo "2095"]
[PlyCount "64"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. exd5 exd5 6. c3 Nc6 7. dxc5 Bxc5 8. Nb3 Bd6 9. Bg5 Be7 10. Be2 0-0 11. 0-0 Re8 12. Nfd4 h6 13. Bh4 a6 14. Re1 Bd7 15. Bf3 Ne4 16. Bxe7 Rxe7 17. Bxe4 dxe4 18. Qc2 f5 19. Rad1 Qb6 20. Qc1 Ne5 21. Qe3 Qc7 22. h3 Rae8 23. Nc1 Nc4 24. Qe2 b5 25. Ncb3 f4 26. Rb1 Qb6 27. Qh5 Re5 28. Qd1 Qg6 29. Kh2 f3 30. gxf3 Qh5 31. f4 Qxh3+ 32. Kg1 Rh5 0-1

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.25"]
[Round "2.1"]
[White "Groot, Marjoke"]
[Black "Bruinenberg, Carla"]
[Result "1/2-1/2"]
[ECO "C06"]
[BlackElo "2095"]
[PlyCount "56"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 Be7 9. 0-0 cxd4 10. cxd4 f6 11. Qa4 0-0 12. Qc2 f5 13. a3 a5 14. Bg5 h6 15. Bxe7 Nxe7 16. Nc3 Nc6 17. Nb5 a4 18. Qc3 g5 19. Rfd1 Ra5 20. Nd6 Ra8 21. Be2 Ndb8 22. Qd2 Qc7 23. h4 g4 24. Nh2 Qg7 25. Nf1 Na6 26. Rac1 Nc7 27. Ng3 Qg6 28. Bf1 Ne8 1/2-1/2

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.24"]
[Round "1.2"]
[White "Groot, Marjoke"]
[Black "Ferschtman, Galina"]
[Result "1-0"]
[ECO "C96"]
[PlyCount "79"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 d6 8. h3 0-0 9. c3 Na5 10. Bc2 c5 11. d4 Nc6 12. Nbd2 Bb7 13. Nf1 Qc7 14. d5 Nb8 15. Ng3 Re8 16. Nf5 Bf8 17. Bg5 Nbd7 18. Nh2 Kh8 19. Ng4 Ng8 20. h4 Ne7 21. h5 Nxf5 22. exf5 Be7 23. Bxe7 Rxe7 24. f6 gxf6 25. Qd3 f5 26. Qxf5 f6 27. Be4 Rg8 28. Nh6 Rg5 29. Qh3 Bc8 30. Kf1 Reg7 31. Ke2 Nf8 32. Qf3 Qd8 33. Rg1 Bg4 34. Nxg4 Rxg4 35. Rad1 Rf4 36. Qh3 Rxe4+ 37. Kf1 Qd7 38. Qf3 Rf4 39. Qe3 Qg4 40. Rd3 1-0

[Event "NED-ch (Women) sf"]
[Site "Rotterdam"]
[Date "2000.08.23"]
[Round "1.1"]
[White "Ferschtman, Galina"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B56"]
[PlyCount "110"]
[EventDate "2000.08.23"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5 Bd7 7. 0-0 e6 8. Be3 Be7 9. f4 0-0 10. Qe2 Qc7 11. Nxc6 bxc6 12. Bd3 Rab8 13. b3 Ne8 14. Rae1 Bf6 15. Nd1 c5 16. Bf2 Qa5 17. c4 Qc7 18. e5 Be7 19. Qh5 g6 20. Qh6 f5 21. Bh4 Qd8 22. Bxe7 Qxe7 23. Bb1 a5 24. Rf3 dxe5 25. Rxe5 Nf6 26. Nf2 a4 27. Qg5 Qd6 28. Rd3 Qc7 29. Qg3 a3 30. Qe3 Rbc8 31. Qc1 Ra8 32. Qd2 Rfe8 33. Rd6 Rad8 34. Rd3 Bc8 35. Qe3 Rxd3 36. Bxd3 Bb7 37. Rxc5 Qb6 38. Re5 Qc6 39. Bf1 Qd6 40. Qd3 Qc6 41. Qd4 Kf7 42. Qc5 Qd7 43. Re2 Ne4 44. Nxe4 Bxe4 45. Qe3 Rd8 46. Re1 Qc7 47. Qf2 Qa5 48. Re2 Bd3 49. Rd2 Bxf1 50. Rxd8 Qxd8 51. Kxf1 Qd1+ 52. Qe1 Qc2 53. Qe2 Qc1+ 54. Kf2 Qxf4+ 55. Kg1 Qc1+ 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Groot, Marjoke"]
[Black "Rupert, Casper"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "23"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bd3 c6 6. h3 Bf5 7. Nf3 Nbd7 8. 0-0 e6 9. Bf4 Be7 10. Re1 Bxd3 11. Qxd3 Nd5 12. Nxd5 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Groot, Marjoke"]
[Black "Hiemstra, Sebastian"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "43"]
[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 d6 3. g3 Nc6 4. Bg2 f5 5. d3 g6 6. Nge2 Nf6 7. Be3 Bg7 8. 0-0 0-0 9. h3 e6 10. Qd2 Re8 11. Rfe1 a6 12. a4 Qc7 13. Rad1 Bd7 14. exf5 exf5 15. d4 b6 16. dxc5 bxc5 17. Nd5 Nxd5 18. Qxd5+ Re6 19. Nf4 Rae8 20. Nxe6 Rxe6 21. Bxc5 Be5 22. Bxd6 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Van Beek, Guido"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "50"]
[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. Nge2 d6 4. g3 g6 5. Bg2 Bg7 6. 0-0 e6 7. d3 Nge7 8. Be3 Nd4 9. Qd2 Rb8 10. Nd1 Bd7 11. Nxd4 cxd4 12. Bh6 0-0 13. Bxg7 Kxg7 14. c3 Qb6 15. cxd4 Qxd4 16. Nc3 Nc6 17. Ne2 Qb4 18. Qc3+ Qxc3 19. bxc3 e5 20. f4 Bg4 21. Bf3 Be6 22. Kf2 Rbc8 23. Ke3 Rfd8 24. Rfd1 d5 25. exd5 Bxd5 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Fakkel, Ewout"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "47"]
[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 d6 3. g3 Nc6 4. Nge2 g6 5. Bg2 Bg7 6. 0-0 e6 7. d3 Nge7 8. Be3 0-0 9. Qd2 Rb8 10. Bh6 b5 11. Bxg7 Kxg7 12. Nd1 e5 13. Ne3 Qc7 14. f4 f5 15. fxe5 dxe5 16. exf5 Nxf5 17. Nd5 Qd6 18. g4 Nfd4 19. Rxf8 Qxf8 20. Rf1 Nxe2+ 21. Qxe2 Qd8 22. Qf2 Qe8 23. Nf6 Qe6 24. Bd5 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Groot, Marjoke"]
[Black "Sparenberg, Erik"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "79"]
[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 e6 3. g3 Nc6 4. Bg2 g6 5. Nge2 Bg7 6. d3 Nge7 7. Be3 d6 8. 0-0 a6 9. d4 cxd4 10. Nxd4 b5 11. Nce2 Ne5 12. a4 Bd7 13. axb5 axb5 14. Bd2 0-0 15. Rxa8 Qxa8 16. Bb4 Qb8 17. b3 Rd8 18. f4 Ng4 19. Qd3 Nc6 20. Nxc6 Bxc6 21. Bc3 Bxc3 22. Qxc3 Rc8 23. Qd2 Qb6+ 24. Qd4 Qxd4+ 25. Nxd4 Ne3 26. Re1 Nxg2 27. Kxg2 Bb7 28. Kf2 e5 29. Nxb5 Rxc2+ 30. Ke3 exf4+ 31. Kxf4 d5 32. Nd6 Bc6 33. exd5 Bxd5 34. h4 Rf2+ 35. Kg5 Be6 36. Ra1 Kg7 37. Ne8+ Kf8 38. Nd6 Ke7 39. Ne4 Rf5+ 40. Kh6 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Van der Weij, Rik"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D61"]
[PlyCount "71"]
[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. d4 d5 2. Nf3 e6 3. Bg5 Nf6 4. e3 Be7 5. c4 Nbd7 6. Nc3 0-0 7. Be2 c6 8. Qc2 Qc7 9. 0-0 dxc4 10. Bxc4 e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. Bf4 Qa5 14. a3 Bf5 15. e4 Bg6 16. Qe2 Nd7 17. e5 b5 18. b4 Qb6 19. Ba2 Qd4 20. Rad1 Qxf4 21. Rxd7 Rfe8 22. g3 Qf5 23. e6 Kf8 24. Re1 f6 25. Bb1 Qg5 26. Ne4 Qe5 27. Nd2 Qxe2 28. Rxe2 Red8 29. Bxg6 hxg6 30. Nb3 Rxd7 31. exd7 Rd8 32. Nd4 c5 33. Ne6+ Kf7 34. Nxd8+ Bxd8 35. Re8 cxb4 36. axb4 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Groot, Marjoke"]
[Black "Van Dijk, Martin"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "81"]
[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 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. Nbd2 Nf6 8. c3 Nc6 9. Nf1 Bg4 10. Ng3 Nh5 11. Nf5 Qd7 12. Ne3 Nf4 13. Bc2 0-0-0 14. g3 Ng6 15. Nxg4 Qxg4 16. Qd3 Rde8 17. Qf5+ Qxf5 18. Bxf5+ Kb8 19. 0-0 h5 20. Re1 h4 21. Bg5 hxg3 22. fxg3 Nd8 23. Bd7 f6 24. Bxe8 Rxe8 25. Bd2 c5 26. Kg2 Rh8 27. Re2 cxd4 28. cxd4 Nc6 29. Rae1 Kc7 30. Bc3 Bd6 31. Nd2 f5 32. Nf3 f4 33. Ne5 Bxe5 34. dxe5 d4 35. Bd2 f3+ 36. Kxf3 d3 37. Rg2 Nd4+ 38. Ke4 Rd8 39. Rc1+ Kb6 40. Be3 d2 41. Rxd2 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Van Beek, Alexander"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2270"]
[PlyCount "99"]
[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. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 h6 10. Bh4 Nxe4 11. Qe1 Nf6 12. Nf5 Qa5 13. Nxd6+ Bxd6 14. Rxd6 0-0-0 15. Qd2 Ne7 16. Bc4 Nf5 17. Bxf6 gxf6 18. Rd3 Bc6 19. Rd1 Rxd3 20. Bxd3 Rd8 21. Qf2 Rg8 22. Qa7 Kc7 23. g3 Rd8 24. Re1 Ne7 25. Qe3 Nd5 26. Nxd5+ Bxd5 27. a3 Qb6 28. Qe2 Qd6 29. Qh5 Qf8 30. g4 Rd6 31. g5 fxg5 32. fxg5 hxg5 33. Qxg5 Rc6 34. Kb1 Bc4 35. Qf4+ Qd6 36. Qxf7+ Qd7 37. Qf3 Bxd3 38. cxd3 Qd6 39. h4 Qh2 40. h5 Qc2+ 41. Ka1 Qd2 42. Qe4 Rc2 43. Qe5+ Kb6 44. Qxe6+ Kc7 45. Qe7+ Kb8 46. Qd6+ Ka7 47. Qd4+ Kb8 48. Re8+ Kc7 49. Qd8+ Kc6 50. Re6+ 1-0

[Event "NED-ch U20 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Berger, Steve"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2320"]
[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 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 e6 7. Bb3 a6 8. Be3 Bd7 9. Qe2 Qa5 10. 0-0-0 Rc8 11. Rhg1 Nb4 12. Kb1 e5 13. a3 Nc6 14. Nf5 Bxf5 15. exf5 Be7 16. g4 Nd7 17. g5 Nc5 18. Ba2 b5 19. Bxc5 dxc5 20. f6 b4 21. axb4 cxb4 22. Qg4 0-0 23. fxe7 Nxe7 24. Nd5 Nc6 25. g6 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.09"]
[Round "9"]
[White "Hamelink, Desiree"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "2117"]
[PlyCount "77"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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 d6 6. Be2 e6 7. Be3 a6 8. 0-0 Bd7 9. f4 Be7 10. Kh1 b5 11. a3 0-0 12. Bf3 Rc8 13. Nb3 Qc7 14. Qe1 Rfd8 15. Qf2 Qb8 16. g4 Bf8 17. g5 Ne8 18. Bg2 Nc7 19. f5 Ne5 20. g6 exf5 21. gxf7+ Kxf7 22. exf5 Bc6 23. Bxc6 Nxc6 24. Qh4 Kg8 25. f6 Ne5 26. Nd4 Qb7+ 27. Qe4 Qxe4+ 28. Nxe4 d5 29. fxg7 Bxg7 30. Nf6+ Kh8 31. Nh5 Nc4 32. Bg1 Nxb2 33. Nxg7 Kxg7 34. Nf5+ Kg6 35. Ne7+ Kg5 36. Be3+ Kg4 37. Rf4+ Kh5 38. Rf5+ Kg4 39. Rg1+ 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.08"]
[Round "8"]
[White "Groot, Marjoke"]
[Black "Inostroza, Pamela"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "65"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 0-0 6. Be3 c6 7. Qd2 Re8 8. Be2 Qc7 9. 0-0 Nbd7 10. Nh2 c5 11. Ng4 Nxg4 12. Bxg4 a6 13. Rad1 Nf6 14. Be2 cxd4 15. Bxd4 Be6 16. Kh1 b5 17. a3 Rec8 18. Rc1 Rab8 19. Bd3 Qd7 20. Kh2 Bc4 21. Rfe1 Bxd3 22. Qxd3 Rc4 23. Bxf6 Bxf6 24. e5 Bg5 25. Rcd1 Qa7 26. exd6 Bf4+ 27. Kh1 Bxd6 28. Ne4 Rd8 29. Qe2 Qc7 30. Nxd6 exd6 31. c3 d5 32. Qe7 Qxe7 33. Rxe7 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.07"]
[Round "7"]
[White "De Smet, Mariska"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B30"]
[PlyCount "124"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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. Nf3 g6 4. d3 Bg7 5. Bd2 e6 6. g3 Nge7 7. Bg2 a6 8. 0-0 0-0 9. Rb1 b5 10. Ne2 d5 11. exd5 Nxd5 12. Be3 Nxe3 13. fxe3 Bb7 14. d4 Bh6 15. Qd2 cxd4 16. Nfxd4 Nxd4 17. Qxd4 Bxg2 18. Kxg2 Qc7 19. c3 e5 20. Qe4 Rad8 21. Rf6 Qa7 22. Qxe5 Bg7 23. Nd4 Bxf6 24. Qxf6 Qb7+ 25. Kf2 Qe4 26. Re1 a5 27. Qb6 a4 28. Qxb5 Rb8 29. Qe2 Rb6 30. b4 axb3 31. axb3 Ra8 32. Qf3 Ra2+ 33. Re2 Qxf3+ 34. Kxf3 Rxe2 35. Kxe2 Kf8 36. Kd3 Ke7 37. c4 Ra6 38. c5 Ra2 39. h4 Kd7 40. b4 Ra3+ 41. Ke4 f5+ 42. Kf4 Ra8 43. b5 Re8 44. b6 Re4+ 45. Kf3 Kc8 46. c6 Re5 47. b7+ Kc7 48. Nc2 Re4 49. Nd4 Re5 50. Kf4 Re4+ 51. Kf3 Re8 52. Ke2 h6 53. Kd3 Re5 54. Nc2 g5 55. Nb4 Ra5 56. Kc4 gxh4 57. gxh4 Ra1 58. Kd4 Ra4 59. Kc4 Ra5 60. Kd4 Ra4 61. Kc4 Ra5 62. Kd4 Ra4 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.06"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Bauerhuit, Monique"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "80"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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 Bc5 6. Re1 0-0 7. c3 Re8 8. h3 d6 9. d3 b5 10. Bc2 Ne7 11. Nbd2 Ng6 12. d4 Bb6 13. Nf1 Bb7 14. Ng3 c6 15. Bg5 h6 16. Be3 Bc7 17. Qd2 exd4 18. cxd4 Rc8 19. Nh2 Bb6 20. Ng4 Nxg4 21. hxg4 c5 22. Nh5 Ba5 23. Qc1 Bxe1 24. Bxh6 Bxf2+ 25. Kxf2 Qh4+ 26. Kf1 Qh1+ 27. Kf2 Qxc1 28. Rxc1 cxd4 29. Bxg7 Bxe4 30. Nf6+ Kxg7 31. Nxe8+ Kf8 32. Nxd6 Rxc2+ 33. Rxc2 Bxc2 34. Ke2 d3+ 35. Kd2 Ne5 36. Nb7 Nxg4 37. b4 Ne5 38. Nc5 Nc4+ 39. Kc1 a5 40. bxa5 Nxa5 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.05"]
[Round "5"]
[White "Wortel, Meike"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B66"]
[PlyCount "84"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Be3 Bd7 10. f3 Be7 11. g4 Qc7 12. h4 b5 13. Bh3 Rc8 14. g5 Ng8 15. g6 Ne5 16. gxf7+ Kxf7 17. Qf2 Nc4 18. f4 Nxb2 19. Kxb2 Qxc3+ 20. Kb1 Nf6 21. Rd3 Qb4+ 22. Rb3 Qc4 23. Bf1 Nxe4 24. Qg2 Nc3+ 25. Ka1 Qa4 26. a3 d5 27. Rg1 Bf6 28. Qg6+ Ke7 29. Qd3 Ne4 30. Kb1 Nc5 31. Qd2 Nxb3 32. Nxb3 Qxa3 33. Bd4 Bxd4 34. Qxd4 Rhg8 35. Rxg7+ Rxg7 36. Qxg7+ Kd6 37. Qxh6 Qb4 38. Bd3 a5 39. Qg5 Qe1+ 40. Kb2 a4 41. Na1 Qc3+ 42. Kb1 a3 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.04"]
[Round "4"]
[White "Groot, Marjoke"]
[Black "Arcilla, Maris"]
[Result "0-1"]
[ECO "B19"]
[PlyCount "56"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. Bd3 Bxd3 9. Qxd3 Qc7 10. Bd2 Ngf6 11. 0-0-0 e6 12. Rhe1 0-0-0 13. Qe2 c5 14. Ne5 Nb6 15. Ba5 cxd4 16. Bxb6 axb6 17. Qc4 Qxc4 18. Nxc4 Bc5 19. Ne5 Rhf8 20. a3 Nd7 21. Nxd7 Rxd7 22. Rd3 Rfd8 23. Re4 Be7 24. Nh5 g6 25. Ng3 Bf6 26. Ne2 Bg7 27. Nf4 e5 28. Ne2 f5 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.03"]
[Round "3"]
[White "Gerritse, Xanthine"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "D05"]
[PlyCount "46"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. 0-0 Bd6 8. dxc5 Bxc5 9. e4 0-0 10. exd5 exd5 11. Nb3 Bd6 12. h3 Re8 13. Re1 Bd7 14. Be3 Ne5 15. Nxe5 Rxe5 16. Bd4 Rxe1+ 17. Qxe1 Re8 18. Qb1 Be5 19. Qc2 Ba4 20. Be3 a6 21. Kf1 Bf4 22. Bd4 Be5 23. Be3 Bf4 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.02"]
[Round "2"]
[White "Groot, Marjoke"]
[Black "Paulis, Winifred"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "64"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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 g6 5. Nge2 Bg7 6. d3 e6 7. Be3 Nge7 8. 0-0 0-0 9. Qd2 b6 10. Bh6 d5 11. Bxg7 Kxg7 12. exd5 exd5 13. d4 Ba6 14. Rfd1 Bxe2 15. Nxe2 c4 16. Nf4 Rc8 17. c3 Qd6 18. Re1 Nd8 19. Re5 Ndc6 20. Re2 b5 21. Rae1 Rc7 22. h4 h5 23. Qe3 a5 24. Qf3 Rd8 25. Bh3 Ng8 26. Re8 Rxe8 27. Rxe8 Nf6 28. Re2 Re7 29. Bg2 Rxe2 30. Qxe2 b4 31. Qf3 Ne7 32. Qe3 Nc6 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "2000.05.01"]
[Round "1"]
[White "Visschedijk, Marijn"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "85"]
[EventDate "2000.05.01"]
[EventType "tourn"]
[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. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Be2 e6 8. 0-0 Nf6 9. h3 Bh5 10. Nc3 Qa5 11. Qb3 Qb4 12. Qxb4 Bxb4 13. a3 Ba5 14. Rd1 0-0-0 15. Be3 Nd5 16. Rac1 Bxc3 17. bxc3 e5 18. g4 exd4 19. cxd4 Bg6 20. Ne5 Rd6 21. Bf3 Kc7 22. Rc5 Rhd8 23. Rdc1 Kb8 24. Rxc6 bxc6 25. Nxc6+ Kc7 26. Nxd8+ Kxd8 27. Rc5 Nxe3 28. fxe3 Ra6 29. Rc3 Kd7 30. Kf2 Rb6 31. Kg3 f6 32. e4 Kd6 33. Kf4 Bf7 34. h4 Ra6 35. g5 Ra4 36. Ke3 h6 37. gxf6 gxf6 38. d5 Ra5 39. Kf4 Rb5 40. Kf5 Rb1 41. Kxf6 Be8 42. e5+ Kd7 43. Bg4+ 1-0

[Event "NED-ch qual (Women)"]
[Site "Rotterdam"]
[Date "1999.11.08"]
[Round "1.2"]
[White "Groot, Marjoke"]
[Black "Muhren, Bianca"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "74"]
[EventDate "1999.11.08"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 073 Extra"]
[Source "ChessBase"]
[SourceDate "2000.01.11"]
[SourceVersion "1"]
[SourceVersionDate "2000.01.11"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. d3 0-0 9. Be3 Nd4 10. Rb1 Nec6 11. Ne2 Nxe2+ 12. Qxe2 Qc7 13. c3 b6 14. d4 Bb7 15. dxc5 dxc5 16. Rfd1 Rad8 17. Rd2 Rxd2 18. Nxd2 Rd8 19. Bh3 Ne7 20. Qc4 Qd6 21. Bg2 Qc6 22. Qe2 Qc8 23. Rd1 Ba6 24. Qf3 Qd7 25. Ra1 Qb5 26. Rb1 Qa4 27. a3 Bd3 28. Rc1 Qb5 29. b4 Be2 30. Qf2 Qd3 31. bxc5 bxc5 32. Rb1 Bxc3 33. Rb7 Bxd2 34. Bxd2 Qxd2 35. Rxe7 Qc1+ 36. Bf1 Bxf1 37. Qxf1 Rd1 0-1

[Event "NED-ch qual (Women)"]
[Site "Rotterdam"]
[Date "1999.11.08"]
[Round "1.3"]
[White "Groot, Marjoke"]
[Black "Muhren, Bianca"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "135"]
[EventDate "1999.11.08"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 073 Extra"]
[Source "ChessBase"]
[SourceDate "2000.01.11"]
[SourceVersion "1"]
[SourceVersionDate "2000.01.11"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. 0-0 Nf6 7. d3 0-0 8. Be3 Rb8 9. h3 b5 10. Qd2 b4 11. Nd1 Qb6 12. Bh6 a5 13. Bxg7 Kxg7 14. Ne3 Ba6 15. Kh2 a4 16. Nf4 Rfe8 17. Nfd5 Nxd5 18. Nxd5 Qa7 19. f4 Nd4 20. c3 bxc3 21. bxc3 Ne6 22. f5 Nd8 23. Nxe7 f6 24. Nd5 Bb7 25. fxg6 Bxd5 26. exd5 hxg6 27. Qf4 Qf7 28. Qxd6 Nb7 29. Qc6 Re2 30. Qxa4 Qxd5 31. Rg1 Nd8 32. Rae1 Rbb2 33. Rxe2 Rxe2 34. Kh1 Qxd3 35. Qa7+ Nf7 36. Qxc5 Qxg3 37. a4 Ng5 38. Qb5 Rf2 39. Qd7+ Kh6 40. Qg4 Qxg4 41. hxg4 Rc2 42. a5 Rxc3 43. a6 Ra3 44. Bb7 Ra2 45. Rg2 Ra1+ 46. Kh2 Ne6 47. Rd2 Nc5 48. Rd6 Nxb7 49. axb7 Rb1 50. Rxf6 Rxb7 51. Kg3 Kg5 52. Rf3 Rb4 53. Ra3 Rxg4+ 54. Kf3 Rf4+ 55. Kg3 Rf5 56. Ra4 Rb5 57. Ra3 Kf5 58. Rf3+ Kg5 59. Ra3 Rb4 60. Ra5+ Kf6 61. Rc5 Kg7 62. Rc7+ Kh6 63. Rc8 g5 64. Rc3 Kh5 65. Ra3 Rg4+ 66. Kh3 Rg1 67. Kh2 Rf1 68. Kg3 1/2-1/2

[Event "NED-ch qual (Women)"]
[Site "Rotterdam"]
[Date "1999.11.08"]
[Round "1.1"]
[White "Muhren, Bianca"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "A05"]
[PlyCount "98"]
[EventDate "1999.11.08"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 073 Extra"]
[Source "ChessBase"]
[SourceDate "2000.01.11"]
[SourceVersion "1"]
[SourceVersionDate "2000.01.11"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. 0-0 0-0 7. Re1 d6 8. Nbd2 Rb8 9. Nf1 Ng4 10. Rb1 Nge5 11. Bf4 Bg4 12. h4 c4 13. N1h2 cxd3 14. cxd3 Nxf3+ 15. Bxf3 Be6 16. b3 Qa5 17. Re2 Nd4 18. Rd2 Nb5 19. Qf1 Bc3 20. b4 Qa3 21. Rc2 Bxa2 22. Ra1 Bxa1 23. Qxa1 Be6 24. Qxa3 Nxa3 25. Rc7 Rfe8 26. h5 Nb5 27. Rc1 Nd4 28. hxg6 Nxf3+ 29. Nxf3 hxg6 30. Rc7 Bg4 31. Ne1 e5 32. Be3 Rec8 33. Rxc8+ Rxc8 34. Bxa7 Be2 35. f4 Rc3 36. fxe5 dxe5 37. Bb8 f6 38. Kf2 Bxd3 39. Nxd3 Rxd3 40. Ba7 Kf7 41. g4 Ke6 42. Bc5 Rb3 43. Kg2 f5 44. exf5+ gxf5 45. gxf5+ Kxf5 46. Kf2 Ke4 47. Ke2 Rb2+ 48. Kd1 Kd3 49. Kc1 Rc2+ 0-1

[Event "NED-ch qual (Women)"]
[Site "Rotterdam"]
[Date "1999.11.08"]
[Round "1.4"]
[White "Muhren, Bianca"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "95"]
[EventDate "1999.11.08"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 073 Extra"]
[Source "ChessBase"]
[SourceDate "2000.01.11"]
[SourceVersion "1"]
[SourceVersionDate "2000.01.11"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nf6 3. Bxf6 gxf6 4. e3 c6 5. Nd2 Qb6 6. Rb1 Bf5 7. Ne2 e5 8. Ng3 Bg6 9. dxe5 fxe5 10. Bd3 Nd7 11. 0-0 e4 12. Be2 Bg7 13. Nb3 Ne5 14. h4 h6 15. h5 Bh7 16. Nd4 Bf6 17. Bg4 Nxg4 18. Qxg4 Bxd4 19. exd4 Qxd4 20. Qf4 Qg7 21. Qc7 0-0 22. Qxb7 Rfc8 23. Qe7 Rcb8 24. b3 Qc3 25. Rbc1 Re8 26. Qd6 Re6 27. Qf4 Qe5 28. Qxe5 Rxe5 29. c3 Rg5 30. Kh2 f5 31. f4 Rg7 32. Ne2 Rd7 33. Rcd1 Rad8 34. b4 Kf7 35. Nd4 Rc7 36. Kg3 c5 37. bxc5 Rxc5 38. Ne2 Ke7 39. Rb1 Rd7 40. Rb3 Ra5 41. a3 Bg8 42. Nd4 Be6 43. Nc6+ Kf6 44. Nxa5 d4 45. Rb7 Rxb7 46. Nxb7 d3 47. Kf2 Bc4 48. Ke3 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Ten Napel, Johan"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "84"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 Be6 13. Nce3 Bxe3 14. Nxe3 Ne7 15. Bd3 d5 16. exd5 Nxd5 17. Nxd5 Qxd5 18. Qe2 Rd8 19. Be4 Qc5 20. Qc2 h6 21. 0-0 0-0 22. Rfd1 Bg4 23. Rxd8 Rxd8 24. h3 Be6 25. g4 Qd6 26. Re1 f6 27. a3 a5 28. Bf3 Qd2 29. Qxd2 Rxd2 30. Re2 Rd1+ 31. Kg2 Kf7 32. Rxe5 fxe5 33. Bxd1 Bd5+ 34. Bf3 Bc4 35. Bc6 Ke6 36. f3 Kd6 37. Be4 g5 38. h4 Kc5 39. hxg5 hxg5 40. Kf2 a4 41. Ke3 Bb3 42. Bg6 Bd5 1/2-1/2

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Groot, Marjoke"]
[Black "Beeke, Bobby"]
[Result "1-0"]
[ECO "B24"]
[PlyCount "39"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 e5 5. d3 Nc6 6. f4 Be7 7. Nf3 a6 8. a4 Bd7 9. 0-0 Nd4 10. fxe5 Nxf3+ 11. Qxf3 dxe5 12. Nd5 Be6 13. Nxe7 Qxe7 14. Bg5 Bg4 15. Qf2 Nxe4 16. Bxe4 Qxg5 17. Qxf7+ Kd8 18. Qxb7 Rc8 19. Rf7 Re8 20. Qd5+ 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "96"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 c5 5. e3 Nc6 6. 0-0 b6 7. b3 Ba6 8. Re1 Rc8 9. a3 Be7 10. Bb2 0-0 11. Nbd2 Na5 12. Rc1 c4 13. bxc4 dxc4 14. c3 Bb5 15. a4 Bc6 16. e4 Qe8 17. Ra1 h6 18. Ne5 Bb7 19. Qe2 Nd7 20. Ng4 Ba6 21. Bc1 Nf6 22. e5 Nh7 23. Nf1 Nb3 24. Nxh6+ Kh8 25. Bf4 gxh6 26. Bxh6 Rg8 27. Rad1 Bg5 28. Bxg5 Rxg5 29. h4 Rg7 30. Be4 Qe7 31. Kg2 Bb7 32. d5 exd5 33. Bf5 d4+ 34. Kh2 d3 35. Qh5 Rd8 36. Ne3 Qxe5 37. Nxc4 Qd5 38. Ne3 Qf3 39. Qxf3 Bxf3 40. Rxd3 Rxd3 41. Bxd3 Nc5 42. Bc4 Nxa4 43. Nf5 Rg8 44. Re7 Rf8 45. Nh6 Bh5 46. Rxa7 Nxc3 47. g4 Bg6 48. h5 Kg7 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Kuijvenhoven, Vincent"]
[Result "0-1"]
[ECO "C05"]
[PlyCount "98"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. exd5 Nxd5 5. c3 c5 6. Ngf3 Nc6 7. Ne4 Qb6 8. dxc5 Bxc5 9. Nxc5 Qxc5 10. Bd3 0-0 11. Qc2 h6 12. 0-0 Bd7 13. Bd2 Rac8 14. Qc1 Qe7 15. Qd1 Rfd8 16. Re1 Na5 17. Ne5 Nc6 18. Qg4 Nxe5 19. Rxe5 Qf6 20. Rae1 Ne7 21. Bb1 Nf5 22. Qb4 Bc6 23. Bf4 Nh4 24. f3 Bxf3 25. gxf3 Nxf3+ 26. Kh1 Nxe5 27. Bxe5 Qf3+ 28. Kg1 Rd2 29. Qe4 Qxe4 30. Bxe4 Rxb2 31. a4 Rc4 32. Bb1 Rxa4 33. Rd1 Kf8 34. c4 Re2 35. Bd6+ Ke8 36. Bd3 Rea2 37. c5 a6 38. Bb1 Re2 39. Bd3 Re3 40. Bc2 Ra2 41. Bb3 Rxb3 42. Bc7 a5 43. Rd8+ Ke7 44. Rd1 a4 45. Bd8+ Ke8 46. Bh4 f6 47. Bg3 a3 48. Bc7 Rc2 49. Bb6 a2 0-1

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Cupido, Alexander"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "88"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 6. Bc4 Bg7 7. 0-0 d6 8. Re1 Nf6 9. Bg5 Bg4 10. Qb3 Na5 11. Qa4+ Bd7 12. Bb5 Nc6 13. e5 dxe5 14. Rad1 Qc7 15. Nxe5 Rd8 16. Bxf6 Bxf6 17. Nd5 Qxe5 18. Rxe5 Bxe5 19. f4 Bd6 20. Nf6+ Kf8 21. Nxd7+ Rxd7 22. Rc1 Rc7 23. Bxc6 bxc6 24. Rxc6 Bc5+ 25. Kf1 Rxc6 26. Qxc6 Bd4 27. b3 Kg7 28. Qd7 Bc5 29. Qc7 Bd6 30. Qxa7 Bxf4 31. Qxe7 Bxh2 32. a4 Bb8 33. Qb7 h5 34. a5 h4 35. a6 g5 36. a7 Bxa7 37. Qxa7 h3 38. gxh3 Rxh3 39. Qd4+ Kg6 40. b4 f5 41. b5 g4 42. b6 Kg5 43. b7 Rf3+ 44. Kg2 f4 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Groot, Marjoke"]
[Black "Aarts, Maikel"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "45"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. Nc3 Nc6 6. Bf4 Bf5 7. h3 e6 8. Nf3 Be7 9. Be2 0-0 10. 0-0 f6 11. Bh2 Qe8 12. exd6 Bxd6 13. Bxd6 cxd6 14. Nh4 Bg6 15. Nxg6 Qxg6 16. d5 exd5 17. Nxd5 Nxd5 18. Qxd5+ Kh8 19. Qxd6 Rad8 20. Qa3 Rfe8 21. Bf3 Nd4 22. Rad1 Re6 23. Rxd4 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Groot, Marjoke"]
[Black "Marsman, O."]
[Result "1/2-1/2"]
[ECO "C65"]
[PlyCount "28"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Re1 d6 6. h3 Bd7 7. c3 0-0 8. d3 Qc8 9. Bg5 Bxh3 10. gxh3 Qxh3 11. Be3 Bxe3 12. fxe3 Qg3+ 13. Kf1 Qh3+ 14. Kg1 Qg3+ 1/2-1/2

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Hiemstra, Sebastian"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "A38"]
[PlyCount "111"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 d6 6. 0-0 Nf6 7. d3 Bd7 8. Bd2 0-0 9. Qc1 Re8 10. Bh6 Bh8 11. a3 Rb8 12. Rb1 a6 13. b4 cxb4 14. axb4 Ng4 15. Bd2 Nge5 16. Nxe5 Nxe5 17. c5 Bf5 18. Rb3 Qd7 19. Nd5 Be6 20. Nb6 Qb5 21. Ra3 Red8 22. f4 dxc5 23. Qxc5 Qxc5+ 24. bxc5 Nd7 25. Nxd7 Rxd7 26. Bc3 Rc7 27. Bxh8 Kxh8 28. d4 Bc4 29. Bf3 Rd8 30. Rd1 Bb5 31. e3 f6 32. Rc3 Kg7 33. Rdc1 Re8 34. Kf2 Kf7 35. c6 b6 36. Be2 Bxe2 37. Kxe2 Ke6 38. e4 Rd8 39. d5+ Kd6 40. Rd1 b5 41. Ke3 Ra7 42. Kd4 b4 43. Rb3 a5 44. e5+ fxe5+ 45. fxe5+ Kc7 46. Kc5 Ra6 47. d6+ exd6+ 48. exd6+ Kc8 49. Kb5 a4 50. Rxb4 Ra8 51. Rxa4 Rb8+ 52. Kc5 Rf8 53. d7+ Kd8 54. Rf4 Rg8 55. Kd6 Rb6 56. Rb1 1-0

[Event "NED U20 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Van Delft, Merijn"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2323"]
[PlyCount "73"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 071 Extra"]
[Source "ChessBase"]
[SourceDate "1999.09.14"]
[SourceVersion "1"]
[SourceVersionDate "1999.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6 7. Bxf6 exf6 8. Bc4 Bg7 9. 0-0 0-0 10. Nde2 f5 11. exf5 Bxf5 12. Bb3 Qb6 13. Nd5 Qc5 14. c3 Bg4 15. Qd2 Bxe2 16. Qxe2 Na5 17. Qd3 Nxb3 18. axb3 Kh8 19. b4 Qc6 20. g3 a6 21. Rfd1 Rad8 22. Qf3 Be5 23. Rd3 Qb5 24. Ra5 Qc6 25. Kg2 Ra8 26. Ne3 Qxf3+ 27. Kxf3 b6 28. Ra4 f5 29. Nd5 g5 30. Nxb6 g4+ 31. Kg2 Rae8 32. Nd5 h5 33. f4 Bd4 34. Rd2 Ba7 35. Rxa6 Rf7 36. b5 Bc5 37. b4 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.11"]
[Round "9"]
[White "De Mie, Mariska"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B58"]
[WhiteElo "2125"]
[PlyCount "116"]
[EventDate "1999.05.03"]
[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 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 e5 7. Nf3 h6 8. 0-0 Be6 9. b3 Be7 10. Bb2 0-0 11. Re1 Qb6 12. h3 Rac8 13. Nd5 Bxd5 14. exd5 Nb4 15. Bc4 Rc5 16. a4 Nbxd5 17. Ba3 Ra5 18. Qd2 Nf4 19. Bb4 Rc5 20. Bxc5 Qxc5 21. Qe3 d5 22. Nxe5 Qxe3 23. fxe3 Ne6 24. Be2 Bb4 25. Bf3 Bxe1 26. Rxe1 Rc8 27. Re2 Ng5 28. Rd2 Nxf3+ 29. gxf3 Kf8 30. Kf2 Ke7 31. Nd3 b6 32. Nf4 g5 33. Ne2 h5 34. Nd4 g4 35. hxg4 hxg4 36. Rd1 gxf3 37. Kxf3 Nd7 38. Ra1 Ne5+ 39. Kf2 Nc6 40. Ne2 Nb4 41. c3 Nd3+ 42. Kf3 Nc5 43. Nd4 Ne4 44. c4 Nf6 45. cxd5 Nxd5 46. a5 Rc3 47. axb6 axb6 48. Ra7+ Kf6 49. Ke4 Ne7 50. Rb7 Nc8 51. Rb8 Nd6+ 52. Kf4 Nc8 53. b4 Rc4 54. b5 Ke7 55. Rb7+ Kf6 56. Kf3 Rc5 57. Ke2 Kg7 58. Rb8 Ne7 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.10"]
[Round "8"]
[White "Gerritse, Xanthine"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "80"]
[EventDate "1999.05.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nc6 3. Bb2 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. c4 a6 8. d4 d5 9. dxc5 dxc4 10. Nbd2 cxb3 11. Nc4 Be6 12. Nb6 Qxd1 13. Rfxd1 Rad8 14. Ng5 Rxd1+ 15. Rxd1 Ne8 16. Nxe6 Bxb2 17. Nxf8 bxa2 18. Bxc6 bxc6 19. Nfd7 a1Q 20. Rxa1 Bxa1 21. Nb8 Nc7 22. Nxc6 e6 23. e3 Kf8 24. Kf1 Ke8 25. Ke2 e5 26. Kd3 Ne6 27. Na4 f5 28. Kc4 Nc7 29. Nb4 e4 30. c6 Bg7 31. Kc5 a5 32. Nc2 Kd8 33. Kb6 Nd5+ 34. Kb7 Be5 35. Na3 g5 36. Nc4 Bc7 37. Nc5 Ke7 38. Na6 Bd8 39. c7 Nxc7 40. Nxc7 a4 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.09"]
[Round "7"]
[White "Groot, Marjoke"]
[Black "Visschedijk, Marijn"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "30"]
[EventDate "1999.05.03"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Nge2 b5 8. Qd2 b4 9. Nd1 e6 10. 0-0 Nge7 11. c3 bxc3 12. bxc3 Ba6 13. Re1 Ne5 14. Nc1 0-0 15. Bf1 Nf3+ 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.08"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Giesen, Janneke"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "43"]
[EventDate "1999.05.03"]
[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 Bc5 6. Re1 0-0 7. c3 b5 8. Bb3 d6 9. h3 d5 10. exd5 Nxd5 11. Nxe5 Bb7 12. d4 Be7 13. Qg4 g6 14. Bh6 Re8 15. Nxf7 Bd6 16. Rxe8+ Qxe8 17. Nxd6 cxd6 18. Bxd5+ Kh8 19. Qf3 Qe7 20. Bxc6 Bxc6 21. Qxc6 Re8 22. Nd2 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.07"]
[Round "5"]
[White "Bakels, Rosanne"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B77"]
[PlyCount "165"]
[EventDate "1999.05.03"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. f3 Bg7 8. Be3 0-0 9. Qd2 Nd7 10. g4 Nde5 11. Be2 Na5 12. b3 Re8 13. h4 f6 14. g5 Nac6 15. f4 Nxd4 16. Bxd4 Nc6 17. Be3 f5 18. 0-0-0 Qa5 19. Qd5+ Qxd5 20. Nxd5 Rb8 21. Bd3 Rf8 22. h5 fxe4 23. Bxe4 Bf5 24. Bf3 Rbd8 25. hxg6 hxg6 26. b4 e5 27. b5 Nd4 28. Ne7+ Kf7 29. Nxf5 Nxf5 30. Bxa7 exf4 31. Bxb7 Ne3 32. Rde1 Rd7 33. Bxe3 Rxb7 34. Bxf4 Rxb5 35. Rh3 Bb2+ 36. Kd1 Rd5+ 37. Rd3 Rxd3+ 38. cxd3 Ba3 39. Kc2 Re8 40. Rxe8 Kxe8 41. Kb3 Bc5 42. a4 Kd7 43. Kc4 Kc6 44. Bd2 d5+ 45. Kb3 Be7 46. Kc2 Bd8 47. Kd1 Kc5 48. Ke1 Bb6 49. Be3+ d4 50. Bd2 Kd5 51. Kf2 Ke5 52. Kg3 Kf5 53. Kf3 Ke5 54. Kg4 Ke6 55. Bb4 Kd5 56. Be7 Ba5 57. Kf3 Ke6 58. Bf6 Kd5 59. Ke2 Kc5 60. Be7+ Kc6 61. Kd1 Kd5 62. Kc2 Ke6 63. Bf6 Kd5 64. Kb3 Kc5 65. Be7+ Kd5 66. Bb4 Bd8 67. Bd2 Kc5 68. Ka3 Bb6 69. a5 Ba7 70. Ka4 Bb8 71. Bb4+ Kc6 72. Be7 Bf4 73. Bd8 Bd6 74. a6 Bc5 75. Ka5 Bd6 76. Bf6 Bc5 77. Be5 Ba7 78. Kb4 Kd5 79. Bf6 Bc5+ 80. Kb5 Ba7 81. Bd8 Ke6 82. Bb6 Bb8 83. Bxd4 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.06"]
[Round "4"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B58"]
[PlyCount "112"]
[EventDate "1999.05.03"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nf3 h6 8. 0-0 Be6 9. Re1 Be7 10. Nd2 0-0 11. Nc4 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. Ne3 Be6 15. Bf3 Qxd1 16. Rxd1 Rfd8 17. Bxc6 Rxd1+ 18. Nxd1 bxc6 19. Be3 Bf5 20. c4 Bd3 21. b3 f5 22. Nb2 Be2 23. f3 f4 24. Kf2 Bxf3 25. Kxf3 fxe3 26. Kxe3 Bc5+ 27. Ke4 Bd4 28. Rb1 Kf7 29. Rf1+ Ke6 30. Nd3 g6 31. Nb4 Rc8 32. Rf3 c5 33. Nd5 Rg8 34. Rf6+ Kd7 35. Rf7+ Ke6 36. Rxa7 Rf8 37. Ra6+ Kd7 38. Nf6+ Ke7 39. Ng4 Rf4+ 40. Kd5 Rxg4 41. Ra7+ Kf8 42. a4 Rxg2 43. a5 Rxh2 44. a6 g5 45. Rb7 Ra2 46. a7 g4 47. Ke4 g3 48. Rb8+ Kg7 49. Kf3 g2 50. Rb7+ Kg6 51. a8Q Rxa8 52. Kxg2 Rf8 53. Kg3 e4 54. Re7 e3 55. Re4 Rb8 56. Kf3 Rxb3 0-1

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.05"]
[Round "3"]
[White "Groot, Marjoke"]
[Black "Versmissen, Jorie"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "52"]
[EventDate "1999.05.03"]
[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. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. dxe5 dxe5 6. a3 Bc5 7. Bg5 c6 8. Bc4 0-0 9. Bb3 Qc7 10. 0-0 Be7 11. Ne2 Nc5 12. Bxf6 Bxf6 13. Ng3 Nxb3 14. cxb3 Be6 15. Qc2 Be7 16. Rfd1 Rad8 17. Qc3 f6 18. Nh4 Rxd1+ 19. Rxd1 Rd8 20. Rd3 Rxd3 21. Qxd3 Qd6 22. Qc2 Bf8 23. b4 Qd8 24. Nhf5 g6 25. Ne3 Qd7 26. Nc4 Kg7 1/2-1/2

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.04"]
[Round "2"]
[White "Trimp, Marga"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "79"]
[EventDate "1999.05.03"]
[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 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Bd3 Nbd7 7. Nge2 dxc4 8. Bxc4 e5 9. 0-0 c6 10. f4 exd4 11. Nxd4 Nb6 12. Bd3 Nbd5 13. Qe1 Nb4 14. Bb1 Re8 15. Rf3 Nfd5 16. Qh4 h6 17. Qh5 Nf6 18. Bxf6 Bxf6 19. Nf5 Kf8 20. e4 Bxf5 21. Qxf5 Bd4+ 22. Kf1 Bxc3 23. Qc5+ Kg8 24. Qxc3 Qd1+ 25. Kf2 a5 26. a3 Rad8 27. Kg3 Rd2 28. axb4 Qe2 29. Qe3 Qxg2+ 30. Kh4 Qxh2+ 31. Rh3 Qf2+ 32. Qxf2 Rxf2 33. Kg3 Rxb2 34. bxa5 Rd8 35. Rh1 Rb3+ 36. Kg4 Rd2 37. Rg1 g6 38. f5 Kg7 39. fxg6 fxg6 40. Kf4 1-0

[Event "NED-ch U20 Girls"]
[Site "Leiden"]
[Date "1999.05.03"]
[Round "1"]
[White "Groot, Marjoke"]
[Black "Hamelink, Desiree"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "66"]
[EventDate "1999.05.03"]
[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. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. exd5 exd5 6. d4 Nf6 7. dxc5 Bxc5 8. Qe2+ Be7 9. Be3 0-0 10. 0-0-0 Bf5 11. h3 Bb4 12. Na4 Re8 13. g4 Be4 14. Qf2 Qa5 15. a3 Qxa4 16. axb4 Qa1+ 17. Kd2 Qxb2 18. Rc1 Bxf3 19. Qxf3 d4 20. Bf2 Qxb4+ 21. Kd1 Ne4 22. Be1 Nc3+ 23. Bxc3 dxc3 24. Bd3 Nd4 25. Qf2 Ne6 26. f5 Nf4 27. Re1 Nxd3 28. Rxe8+ Rxe8 29. cxd3 a6 30. Qc2 Qe7 31. Qf2 Qe5 32. Rc2 b5 33. Re2 Qxe2+ 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "De Bruijn, Edwin"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "D37"]
[PlyCount "74"]
[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. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf4 c6 5. e3 Nbd7 6. Nf3 Be7 7. Bd3 0-0 8. 0-0 Nb6 9. c5 Nbd7 10. b4 Nh5 11. Be5 f6 12. Bg3 Nxg3 13. fxg3 e5 14. e4 dxe4 15. Bxe4 f5 16. Bc2 e4 17. Ne1 Nf6 18. Kh1 Nd5 19. Nxd5 cxd5 20. Bb3 Be6 21. Nc2 Bg5 22. Qe2 Qd7 23. Rf2 Rf7 24. Raf1 Raf8 25. Na3 f4 26. gxf4 Rxf4 27. Rxf4 Rxf4 28. Rxf4 Bxf4 29. Bd1 Qf7 30. Nc2 Bg5 31. Kg1 Qf4 32. Qb5 Qf7 33. Qe2 Bd7 34. Ne3 Bb5 35. Qxb5 Bxe3+ 36. Kh1 a6 37. Qa4 Qf1# 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "De Jong, Roderick"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "D37"]
[PlyCount "98"]
[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. d4 d5 2. c4 e6 3. Bf4 Nf6 4. Nc3 Be7 5. e3 0-0 6. Nf3 Nbd7 7. Bd3 c5 8. cxd5 exd5 9. dxc5 Nxc5 10. 0-0 Nxd3 11. Qxd3 Be6 12. Nd4 Qb6 13. Nxe6 fxe6 14. Qb5 Qxb5 15. Nxb5 Kf7 16. Nd6+ Bxd6 17. Bxd6 Rfc8 18. Rfc1 g6 19. Be5 Nd7 20. Bc3 a6 21. Rc2 Rc6 22. Kf1 Rac8 23. a3 Nc5 24. Bb4 Nd3 25. Rxc6 Rxc6 26. Bc3 e5 27. Rd1 e4 28. Ke2 Ke6 29. Rd2 Rc5 30. Rc2 Rc6 31. Rd2 Kd6 32. Rc2 Kc5 33. Bd4+ Kb5 34. Rxc6 bxc6 35. f3 Kc4 36. fxe4 dxe4 37. g4 Kb3 38. h4 Nxb2 39. Bc5 Nd3 40. Be7 c5 41. Kf1 c4 42. Bf6 c3 43. Bxc3 Kxc3 44. Kg2 Kb3 45. Kg3 Kxa3 46. g5 Kb2 47. Kg4 a5 48. h5 a4 49. hxg6 hxg6 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Groenewold, Jan Joris"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "E18"]
[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. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 Nbd7 7. Qc2 c5 8. Rd1 b6 9. Nc3 Bb7 10. cxd5 Nxd5 11. Nxd5 Bxd5 12. e4 Bb7 13. d5 exd5 14. exd5 Bd6 15. Qf5 Re8 16. Ng5 Nf6 17. Ne4 Nxe4 18. Bxe4 g6 19. Qg4 Be5 20. Bg5 Bc8 21. Qh4 Qd6 22. Bc2 Bxb2 23. Rab1 Be5 24. f4 Bd4+ 25. Rxd4 cxd4 26. f5 Bb7 27. Rb5 Ba6 28. f6 Re1+ 29. Kf2 Re2+ 30. Kg1 Rxc2 31. Qh6 Qf8 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Arcilla, Maris"]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "87"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 e6 7. Bf4 Be7 8. Ne5 Nd7 9. Nxg6 hxg6 10. Bd3 Nb6 11. c3 Bd6 12. Qf3 Qc7 13. Bxd6 Qxd6 14. Ne4 Qc7 15. h3 0-0-0 16. 0-0-0 Nh6 17. Nc5 Nf5 18. b4 Nd6 19. Bxg6 Rhe8 20. Bd3 Nbc4 21. Qe2 Nb6 22. Rhe1 Nd7 23. Nxd7 Rxd7 24. Qg4 g6 25. Re3 a5 26. a3 axb4 27. axb4 Qb6 28. Kd2 Qa7 29. Rc1 Qa2+ 30. Rc2 Nc4+ 31. Bxc4 Qxc4 32. Re5 b6 33. Qe2 Rxd4+ 34. cxd4 Qxd4+ 35. Qd3 Qxe5 36. Rxc6+ Kb8 37. Rxb6+ Kc7 38. Rb7+ Kxb7 39. Qd7+ Kb6 40. Qxe8 Qb2+ 41. Kd3 Qb3+ 42. Ke2 Qb2+ 43. Kf3 Qc3+ 44. Ke2 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Bouwhuis, Michiel"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "38"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. Re1 d6 8. h3 Bb7 9. c3 Bb6 10. d4 Qd7 11. Bg5 h6 12. Bh4 g5 13. Bg3 g4 14. hxg4 Qxg4 15. d5 Qxg3 16. Kh1 Bxf2 17. dxc6 Rg8 18. Rg1 Bxc6 19. Nbd2 Rg4 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Cox, L."]
[Result "1-0"]
[ECO "C66"]
[PlyCount "53"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. Re1 Bd7 7. c3 Be7 8. d4 exd4 9. cxd4 b5 10. Bb3 Bg4 11. Nc3 Bxf3 12. gxf3 Nd7 13. Bd5 Ndb8 14. Kh1 Ra7 15. Be3 Nb4 16. Rg1 Nxd5 17. Nxd5 Rb7 18. Rxg7 c6 19. Nxe7 Qxe7 20. Qg1 Qf8 21. Qg4 Nd7 22. Rg1 Rb8 23. Bh6 Nf6 24. Qf5 Ke7 25. Rxh7 Qe8 26. Rxh8 Qxh8 27. Bg7 1-0

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Hania, Renske"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "75"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. d3 0-0 9. Be3 b6 10. d4 cxd4 11. Nxd4 a6 12. e5 d5 13. Na4 Rb8 14. Qd2 Bd7 15. b3 Nxd4 16. Qxd4 Nf5 17. Qd2 Nxe3 18. Qxe3 Bxa4 19. bxa4 Qd7 20. Qb3 Rfc8 21. Rfd1 Qc7 22. Rac1 Qc5+ 23. Kh1 b5 24. Bf1 Rb6 25. axb5 axb5 26. Bd3 Ra8 27. Rb1 Ra3 28. Qb4 Qxb4 29. Rxb4 Rxa2 30. Rdb1 Ra5 31. Rxb5 Raxb5 32. Rxb5 Rxb5 33. Bxb5 Bf8 34. Kg2 Kg7 35. Bd7 Bb4 36. Kf3 Kf8 37. h3 Ke7 38. Bc6 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Overbeeke, Pim"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "54"]
[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 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 5. Be2 e6 6. 0-0 c6 7. c4 Nf6 8. Bf4 Bd6 9. Qd2 0-0 10. Nc3 Qc7 11. Ne5 Bxe2 12. Qxe2 Nbd7 13. Rad1 Rad8 14. Rd3 a6 15. Bg3 c5 16. Nxd7 Rxd7 17. dxc5 Bxg3 18. hxg3 Rxd3 19. Qxd3 Qxc5 20. Rd1 h6 21. Na4 Qc6 22. Qa3 Rc8 23. b3 b5 24. Rd6 Qe4 25. Nb6 Qe1+ 26. Kh2 Ng4+ 27. Kh3 f5 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Paulis, Winifred"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "92"]
[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. Nc3 Nc6 3. f4 d6 4. Bc4 Nf6 5. Nf3 e6 6. 0-0 Be7 7. d3 a6 8. a3 0-0 9. Kh1 h6 10. Qe1 d5 11. Ba2 Re8 12. e5 Nd7 13. g4 Nd4 14. Nxd4 cxd4 15. Ne2 Qc7 16. Nxd4 Bc5 17. Qc3 Qd8 18. Nf3 b5 19. d4 Ba7 20. Qd3 Nb6 21. c3 Qe7 22. Bb1 g6 23. h4 f5 24. exf6 Qxf6 25. Qxg6+ Qxg6 26. Bxg6 Rf8 27. Ne5 Nc4 28. Nxc4 bxc4 29. Be3 Rb8 30. Rf2 e5 31. f5 Bd7 32. Bxh6 exd4 33. cxd4 Bxd4 34. Bxf8 Bxf2 35. Be7 Rxb2 36. f6 Be6 37. h5 d4 38. h6 Bd5+ 39. Kh2 Be3+ 40. Kg3 Bxh6 41. Bc5 d3 42. Re1 Bf7 43. Bxf7+ Kxf7 44. Bd4 d2 45. Re7+ Kf8 46. Bc5 Rb5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Sewambar, Ashwin"]
[Result "0-1"]
[ECO "C92"]
[PlyCount "90"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. h3 0-0 9. c3 Bb7 10. d4 Re8 11. d5 Nb8 12. c4 c6 13. Nc3 Nbd7 14. cxb5 axb5 15. dxc6 Bxc6 16. Nd5 Nc5 17. Nxf6+ Bxf6 18. Bd5 Qc7 19. Bg5 Bxg5 20. Nxg5 Bxd5 21. Qxd5 h6 22. Nf3 b4 23. Nd2 Ra6 24. Nc4 Ne6 25. Qb5 Rc6 26. Ne3 Rb8 27. Qd3 Nf4 28. Qd2 Rc8 29. Kh2 Kh7 30. Red1 Qa5 31. b3 Qc5 32. Nc4 Ne6 33. Kg1 Nd4 34. Qd3 Ra8 35. Qd2 Rca6 36. Rdc1 Nxb3 37. Qe3 Qxe3 38. Nxe3 Nxa1 39. Rxa1 Rxa2 40. Rb1 Rb8 41. Nd5 b3 42. Kf1 b2 43. Ke2 Ra1 44. Nc3 Rxb1 45. Nxb1 Rc8 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Trimp, Marga"]
[Result "1-0"]
[ECO "C89"]
[PlyCount "81"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. Re1 0-0 8. h3 Bb7 9. c3 Re8 10. a3 Na5 11. Bc2 d5 12. b4 dxe4 13. Ng5 Qd5 14. Nxe4 Nd7 15. bxa5 Kf8 16. Bb3 Qc6 17. Qf3 Qg6 18. Qg4 Qxg4 19. hxg4 Bxe4 20. Rxe4 Nf6 21. Re2 Nxg4 22. c4 c6 23. Bb2 e4 24. Nc3 Bd4 25. Nd1 Bc5 26. Ne3 Ne5 27. Nf5 g6 28. Bd4 Bxd4 29. Nxd4 bxc4 30. Ba4 Rac8 31. Rxe4 Re7 32. Rae1 Rce8 33. Nxc6 Nxc6 34. Bxc6 Rxe4 35. Rxe4 Rxe4 36. Bxe4 Ke7 37. Bb7 Kd7 38. Bxa6 Kc7 39. Bxc4 f6 40. Bb5 h6 41. d4 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Groot, Marjoke"]
[Black "Van Beek, Guido"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "88"]
[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. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. d3 d6 6. Be3 Nd4 7. h3 Qb6 8. Bxd4 cxd4 9. Nd5 Qd8 10. c4 a5 11. Qa4+ Bd7 12. Qb3 b5 13. cxb5 e6 14. Nb4 axb4 15. Qxb4 Qa5 16. Qxa5 Rxa5 17. a4 Bxb5 18. b3 Ne7 19. Kd2 0-0 20. Be2 Bd7 21. Rhc1 Nc6 22. Bd1 Bh6 23. Rc4 Bxf4+ 24. Ke2 Rc5 25. Ne1 Rxc4 26. dxc4 Nb4 27. Nd3 Nxd3 28. Kxd3 e5 29. b4 f5 30. Bf3 Bg5 31. a5 Ra8 32. exf5 Bxf5+ 33. Be4 Bd8 34. g4 Bxe4+ 35. Kxe4 Kf7 36. Kd5 Ke7 37. Kc6 Rc8+ 38. Kd5 Kd7 39. a6 Bb6 40. a7 Ra8 41. Ra6 Kc7 42. c5 dxc5 43. bxc5 Bxa7 44. Kxe5 d3 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "98"]
[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 d6 5. Nc3 Nf6 6. Be2 g6 7. 0-0 Bg7 8. Be3 0-0 9. Qd2 Bd7 10. f4 Nxd4 11. Bxd4 Bc6 12. Bf3 Nd7 13. Bxg7 Kxg7 14. Kh1 Qb6 15. b3 Qb4 16. a3 Qc5 17. b4 Qc4 18. Be2 Qe6 19. Qd4+ Qf6 20. Qe3 Nb6 21. a4 a5 22. b5 Bd7 23. Ra3 Nc8 24. Nd5 Qh4 25. Qd4+ Kg8 26. Rg3 Qh6 27. f5 Qg7 28. f6 exf6 29. Nxf6+ Kh8 30. Qe3 Be6 31. Rf4 Ne7 32. Qf2 Ng8 33. Qd4 Nxf6 34. Qxf6 Qxf6 35. Rxf6 Rac8 36. Bd3 Bc4 37. Rxd6 Bxd3 38. Rgxd3 Rxc2 39. Kg1 Rc4 40. R3d4 Rfc8 41. Rxc4 Rxc4 42. Rd7 Kg8 43. e5 Rxa4 44. Rxb7 Rb4 45. b6 a4 46. Ra7 Rxb6 47. Rxa4 Re6 48. Ra5 Kg7 49. Kf2 Kg8 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Muris, Saskia"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B60"]
[PlyCount "33"]
[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. Nxc6 bxc6 6. Nc3 d6 7. Bg5 g6 8. Bxf6 exf6 9. Bd3 Bg7 10. 0-0 0-0 11. Qd2 Be6 12. Ne2 Qb6 13. c3 Rab8 14. b3 Rfd8 15. Qe3 Qxe3 16. fxe3 Rb6 17. Nd4 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Van Den Brink, Johan"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "A36"]
[PlyCount "70"]
[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. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e4 d6 6. Nge2 Bd7 7. 0-0 Qc8 8. d3 Bh3 9. f4 Bxg2 10. Kxg2 f5 11. Nd5 e6 12. Ne3 Nge7 13. Rb1 Qd7 14. a3 h6 15. b4 b6 16. Bb2 Bxb2 17. Rxb2 0-0-0 18. Nc3 Kb8 19. Na4 Kc7 20. Nc3 Rdg8 21. bxc5 dxc5 22. Nb5+ Kb8 23. e5 g5 24. Kh1 Nd4 25. Nc2 Qc6+ 26. Kg1 Nxb5 27. cxb5 Qd5 28. d4 Rd8 29. Qd3 cxd4 30. Nb4 Qe4 31. Na6+ Kb7 32. Qc4 d3 33. Qc7+ Ka8 34. Qxe7 d2 35. Nc7+ Kb8 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Veltman, Anne"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "38"]
[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. Nf3 Bb4 7. Bd2 0-0 8. Bc4 Bxc3 9. Bxc3 Nxe4 10. Bxe5 Nxe5 11. Nxe5 Qa5+ 12. c3 Qxe5 13. Qe2 Re8 14. f4 Qe7 15. 0-0 Qc5+ 16. Kh1 Ng3+ 17. hxg3 Rxe2 18. Bxe2 d6 19. Rae1 Bd7 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Visschedijk, Marijn"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "41"]
[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. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Be2 e6 8. 0-0 Nf6 9. Nc3 Qd8 10. Be3 Be7 11. h3 Bh5 12. a3 0-0 13. Qd3 Bg6 14. Qd2 h6 15. Ne5 Nxe5 16. dxe5 Qxd2 17. Bxd2 Ne4 18. Nxe4 Bxe4 19. Rac1 Rac8 20. Be3 a6 21. f4 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1998.??.??"]
[Round "?"]
[White "Wortel, Meike"]
[Black "Groot, Marjoke"]
[Result "1/2-1/2"]
[ECO "B34"]
[PlyCount "90"]
[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 g6 6. Nxc6 dxc6 7. Qxd8+ Kxd8 8. Bc4 Ke8 9. f3 Bg7 10. Kf2 Nd7 11. Ne2 b5 12. Bb3 a5 13. c3 Ne5 14. Rd1 a4 15. Bc2 Bb7 16. Rb1 Rd8 17. Rxd8+ Kxd8 18. Be3 Kc7 19. Bc5 Re8 20. Rd1 Nd7 21. Be3 Rd8 22. Nd4 e5 23. Ne2 Bf6 24. b3 axb3 25. Bxb3 Nf8 26. Rxd8 Bxd8 27. Bxf7 Kd6 28. Nc1 Bc8 29. Nd3 Nd7 30. Bg8 Nf6 31. Bb3 Nd7 32. f4 Ba5 33. fxe5+ Ke7 34. Bg5+ Ke8 35. e6 Nf8 36. e7 Ne6 37. Bxe6 Bxe6 38. Nb4 Bxb4 39. cxb4 Bxa2 40. Ke3 Bf7 41. Kd4 Bc4 42. Ke5 Bf1 43. g3 Bg2 44. Kf4 h5 45. Bf6 Bh1 1/2-1/2

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "3"]
[White "Glerum, Fanny"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "80"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bc4 Bg7 5. Ne2 Nf6 6. Ng3 d5 7. exd5 Nxd5 8. c3 0-0 9. 0-0 b6 10. h3 Bb7 11. Re1 a6 12. Ne4 Nf6 13. Ng3 e6 14. d3 Qd7 15. Bf4 Rfd8 16. a4 Ne7 17. Ne5 Qe8 18. Qd2 Bd5 19. Bh6 Nc6 20. Nxc6 Qxc6 21. Bxd5 Qxd5 22. Bxg7 Kxg7 23. Rad1 Rd7 24. Ne2 Rad8 25. Nf4 Qb3 26. Ra1 g5 27. Ne2 h6 28. Nc1 Qd5 29. c4 Qxc4 30. dxc4 Rxd2 31. Ne2 Rxb2 32. Rab1 Rb4 33. Rec1 Rd2 34. Ng3 Ra2 35. Rd1 Raxa4 36. Rdc1 Rxb1 37. Rxb1 Rb4 38. Rc1 Kg6 39. Ne2 Ne4 40. Rc2 Nd6 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "1"]
[White "Groot, Marjoke"]
[Black "Gorter, Janko"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "59"]
[EventDate "1997.??.??"]
[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 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2 Bxe2 5. Nxe2 Qxd5 6. 0-0 Nc6 7. Nbc3 Qf5 8. Ng3 Qd7 9. Nce2 0-0-0 10. c3 e5 11. Be3 Nd5 12. Qc2 g6 13. Ne4 f5 14. Bg5 Be7 15. Nc5 Qd6 16. Bxe7 Ncxe7 17. Nd3 Nc6 18. dxe5 Nxe5 19. Nd4 Rhe8 20. Rfe1 Nf6 21. Nxe5 Rxe5 22. Rxe5 Qxe5 23. Nf3 Qd6 24. Kf1 Ne4 25. Ke2 Qe6 26. Kf1 Qd6 27. Ke2 h6 28. h3 g5 29. Nd4 Qe5 30. Nf3 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "4"]
[White "Groot, Marjoke"]
[Black "Hamelink, Desiree"]
[Result "0-1"]
[ECO "B24"]
[PlyCount "34"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nf3 0-0 8. Be3 b6 9. 0-0 d5 10. exd5 exd5 11. d4 Nf5 12. Bf2 cxd4 13. Nxd5 Be6 14. g4 Nh6 15. Nf6+ Qxf6 16. Nxd4 Bxg4 17. Qe1 Nxd4 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "2"]
[White "Groot, Marjoke"]
[Black "Inostroza, Pamela"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "66"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nxf6+ Nxf6 7. c3 Bg4 8. Nf3 e6 9. Bf4 Be7 10. 0-0 0-0 11. Bc2 Qb6 12. Bb3 Rfd8 13. h3 Bh5 14. g4 Bg6 15. Ne5 c5 16. dxc5 Bxc5 17. Qe2 Nd5 18. Nxg6 hxg6 19. Bg3 Qc6 20. Rad1 Nf6 21. Bc2 Qb6 22. Bb3 a6 23. Kh2 Ne8 24. Kg2 Nd6 25. Rd2 Qc6+ 26. f3 Rd7 27. Rfd1 Rad8 28. Bxe6 Re7 29. Bxf7+ Kxf7 30. Qd3 Nf5 31. Qc4+ Kf6 32. gxf5 Rxd2+ 33. Rxd2 Re3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "3"]
[White "Groot, Marjoke"]
[Black "Snuverink, Michiel"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "98"]
[EventDate "1997.??.??"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 c6 7. Bg5 Nbd7 8. Qd2 b5 9. Bh6 b4 10. Nd1 Nxe4 11. Qe3 Nef6 12. Bxg7 Kxg7 13. Qb3 Nd5 14. Re1 N7f6 15. Ne3 Qb6 16. Bc4 Be6 17. Rad1 Nxe3 18. Rxe3 Bxc4 19. Qxc4 Nd5 20. Re2 e6 21. Nd2 a5 22. Nf1 Rfc8 23. Ne3 Nf4 24. Red2 d5 25. Qf1 c5 26. h3 c4 27. Rb1 c3 28. Rdd1 cxb2 29. Rxb2 Rc3 30. Rb3 Rb8 31. g3 Nh5 32. Rd3 Rxd3 33. Qxd3 Nf6 34. f3 Qc7 35. Kg2 Rc8 36. Qa6 Nh5 37. f4 g5 38. fxg5 Qxg3+ 39. Kf1 Qxh3+ 40. Ke1 Qg3+ 41. Kf1 Rc3 42. Rxc3 bxc3 43. Nf5+ exf5 44. Qh6+ Kg8 45. Qxh5 Qf4+ 46. Kg2 Qg4+ 47. Qxg4 fxg4 48. Kg3 f5 49. gxf6 h5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "7"]
[White "Groot, Marjoke"]
[Black "Van Run, Jan"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "52"]
[EventDate "1997.??.??"]
[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 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nf3 Bg4 5. Be2 Nc6 6. 0-0 e6 7. d3 Be7 8. Ne5 Bxe2 9. Qxe2 Nxe5 10. Qxe5 Bf6 11. Qe4 0-0 12. Nxd5 exd5 13. Qb4 b6 14. Re1 Qd7 15. d4 Qf5 16. Re2 Rfe8 17. Be3 c5 18. Qb5 a6 19. Qxb6 cxd4 20. Rae1 dxe3 21. Rxe3 Rxe3 22. Rxe3 g6 23. Qb3 Rc8 24. c3 Qd7 25. Re1 Rd8 26. Qb6 Qd6 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "6"]
[White "Groot, Marjoke"]
[Black "Wortel, Meike"]
[Result "1-0"]
[ECO "B16"]
[PlyCount "67"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Ne2 e6 8. Ng3 Bg6 9. h4 h5 10. Be2 c5 11. Bf3 Nc6 12. Bxc6+ bxc6 13. dxc5 Qxd1+ 14. Kxd1 Bxc5 15. Ke2 Rd8 16. Be3 Bxe3 17. Kxe3 Rd3+ 18. Ke2 Ke7 19. Rhd1 Rhd8 20. Rxd3 Rxd3 21. Rd1 Rxd1 22. Kxd1 Kd6 23. Kd2 Kd5 24. b3 e5 25. c4+ Kd6 26. b4 e4 27. Ke3 f5 28. Kf4 Ke6 29. Ne2 Kd7 30. Nd4 a6 31. Nxf5 c5 32. a3 cxb4 33. axb4 a5 34. bxa5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "5"]
[White "Groot, Marjoke"]
[Black "Zijlstra, M."]
[Result "1-0"]
[ECO "C65"]
[PlyCount "61"]
[EventDate "1997.??.??"]
[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 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Re1 0-0 6. Bxc6 dxc6 7. Nxe5 Re8 8. Nd3 Bg4 9. Re2 Bxe2 10. Qxe2 Rxe4 11. Qf1 Qd6 12. Nc3 Rh4 13. g3 Rh5 14. Nf4 Re5 15. d3 Rae8 16. Ng2 Qd4 17. Bf4 R5e7 18. Rb1 Ng4 19. Ne4 Bd6 20. c3 Qa4 21. Bxd6 cxd6 22. Nxd6 Rd8 23. Nc4 Qc2 24. d4 Re2 25. Nge3 Nxe3 26. Nxe3 Qd3 27. Kg2 Rd6 28. Re1 Rxb2 29. Qxd3 Rf6 30. Ng4 Rg6 31. Re8# 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "9"]
[White "Groot, Marjoke"]
[Black "Zouaghi, Said"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "60"]
[EventDate "1997.??.??"]
[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 d6 3. g3 Nf6 4. Bg2 g6 5. f4 Nc6 6. Nf3 Bg7 7. d3 0-0 8. 0-0 Qb6 9. Kh1 Bd7 10. Rb1 e6 11. h3 Nh5 12. Ne2 f5 13. Nd2 Nd4 14. Nc4 Qc7 15. Kh2 Nxe2 16. Qxe2 b5 17. Ne3 fxe4 18. Bxe4 Bc6 19. Ng4 Rae8 20. Bd2 e5 21. f5 d5 22. Bg2 e4 23. Bf4 Nxf4 24. Rxf4 Rxf5 25. Rxf5 gxf5 26. Ne3 f4 27. Nf1 f3 28. Bxf3 exf3 29. Qxf3 d4 30. Qf5 Qe7 0-1

[Event "NED-ch U16 Girls"]
[Site "Leiden"]
[Date "1997.??.??"]
[Round "1"]
[White "Huistra, Heikel"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "B34"]
[PlyCount "51"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be2 Nf6 6. Nc3 Bg7 7. Be3 0-0 8. 0-0 b6 9. f4 Bb7 10. Bd3 Nb4 11. f5 Nxd3 12. cxd3 Qc7 13. Rc1 Rfe8 14. Ncb5 Qd8 15. Nc7 Rb8 16. Nxe8 Nxe8 17. fxg6 hxg6 18. Qf3 f6 19. Qg4 Kf7 20. Rf3 Rc8 21. Rcf1 Ba6 22. Bd2 Qc7 23. Kh1 Qd6 24. Bc3 b5 25. Rg3 g5 26. Qxg5 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "6"]
[White "Markus, Aernout"]
[Black "Groot, Marjoke"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "108"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. g4 d5 2. Bg2 c5 3. h3 Nc6 4. c4 d4 5. d3 e5 6. Nd2 Be6 7. Ngf3 Bd6 8. Ne4 f5 9. Neg5 Bd7 10. gxf5 Bxf5 11. Qb3 Qc7 12. Nh4 Bd7 13. Ne4 Be7 14. Nf3 Nf6 15. Nfd2 Nb4 16. a3 Qa5 17. Rb1 Nc6 18. Qb5 a6 19. Qxa5 Nxa5 20. b4 cxb4 21. axb4 Nc6 22. c5 0-0 23. Nc4 Nxe4 24. Bxe4 Be6 25. Bxc6 bxc6 26. Nxe5 Bd5 27. Rg1 Bh4 28. Rg4 Bxf2+ 29. Kd1 Rae8 30. Nd7 Rf7 31. Nb6 Be6 32. Re4 Rfe7 33. Bg5 Ba2 34. Rxe7 Rxe7 35. Ra1 Bb3+ 36. Kd2 Re5 37. Bf4 Rf5 38. Bd6 Be3+ 39. Ke1 Bf2+ 40. Kf1 Be3+ 41. Kg2 Rf2+ 42. Kg3 Rxe2 43. Rxa6 Rd2 44. b5 cxb5 45. c6 Rxd3 46. Ra8+ Kf7 47. Rf8+ Kg6 48. Nd7 Bg5+ 49. Kf2 Rd2+ 50. Ke1 Rd1+ 51. Ke2 Rd2+ 52. Kf3 Bd5+ 53. Kg4 h5+ 54. Kg3 Rg2# 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "4"]
[White "Rupert, Casper"]
[Black "Groot, Marjoke"]
[Result "1-0"]
[ECO "A03"]
[PlyCount "101"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. e3 Nc6 4. b3 Bg4 5. Be2 Nf6 6. Bb2 e6 7. 0-0 Bd6 8. Na3 a6 9. c4 0-0 10. h3 Bf5 11. g4 Be4 12. Qe1 Re8 13. g5 Nd7 14. Qf2 Nb4 15. Ne1 Qe7 16. h4 e5 17. f5 d4 18. Qg3 f6 19. d3 Bc6 20. e4 Rf8 21. Nf3 g6 22. Bc1 fxg5 23. Bxg5 Qg7 24. Nh2 gxf5 25. exf5 h6 26. Ng4 hxg5 27. hxg5 Kf7 28. Nh6+ Ke8 29. Qh4 Kd8 30. Bg4 Nb6 31. f6 Qg6 32. Bf5 Qe8 33. g6 Kc7 34. f7 Qe7 35. Qxe7+ Bxe7 36. g7 Rxf7 37. Nxf7 Rg8 38. Nxe5 Rxg7+ 39. Kf2 Rg2+ 40. Ke1 Bh4+ 41. Kd1 Rxa2 42. Rxa2 Nxa2 43. Nxc6 Kxc6 44. Be4+ Kc7 45. Rf7+ Kd6 46. Rxb7 Nc3+ 47. Kc2 Nd7 48. Bf5 Nf6 49. Rb6+ Ke5 50. Bh3 Nh5 51. Rh6 1-0

