[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.13"]
[Round "6"]
[White "Loose, Rob"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "C30"]
[WhiteElo "1981"]
[BlackElo "1982"]
[PlyCount "48"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 f5 4. Nc3 Nf6 5. fxe5 Nxe4 6. Bc4 Bc5 7. d4 Nxd4 8. Nxe4 Nxf3+ 9. Qxf3 Qh4+ 10. Qg3 Qxe4+ 11. Be2 0-0 12. Kd1 f4 13. Qe1 Qxg2 14. Rf1 Qd5+ 15. Bd2 d6 16. exd6 Bh3 17. Rf3 Bg4 18. Rd3 Bxe2+ 19. Qxe2 Qh1+ 20. Be1 Rae8 21. Qd2 Bxd6 22. c3 f3 23. Re3 Rxe3 24. Qxe3 f2 0-1

[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.13"]
[Round "7"]
[White "Maassen van den Brink, Koen"]
[Black "Lenaerts, Lennert"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1982"]
[BlackElo "1867"]
[PlyCount "78"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 Nf6 3. e5 d4 4. exf6 dxc3 5. fxg7 cxd2+ 6. Bxd2 Bxg7 7. Qf3 Bxb2 8. Rd1 Qd4 9. Be2 Qg7 10. Rb1 Nc6 11. c3 Ba3 12. Rb3 Bd6 13. Bb5 Bd7 14. Ba4 Rb8 15. Ne2 Rg8 16. Ng3 Qg4 17. Bxc6 Bxc6 18. Qxg4 Rxg4 19. f3 Ra4 20. Rb2 Bd5 21. 0-0 Rxa2 22. Rxa2 Bxa2 23. Ne4 Be6 24. Ra1 a6 25. Nxd6+ exd6 26. Bf4 Kd7 27. Ra5 c5 28. Rxc5 dxc5 29. Bxb8 b5 30. Kf2 b4 31. cxb4 cxb4 32. Ke2 a5 33. Kd2 a4 34. Kc1 a3 35. Be5 Kc6 36. g4 Kd5 37. Bf6 Kc4 38. h4 Bd5 39. f4 Be4 0-1

[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.12"]
[Round "4"]
[White "Alvarez Carbajales, Fermin"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "1918"]
[BlackElo "1982"]
[PlyCount "86"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. Nxe5 Nxe5 8. d4 Bxd4 9. Qxd4 d6 10. c3 c5 11. Qd1 c4 12. Bc2 Bb7 13. Bg5 h6 14. Bh4 g5 15. Bg3 g4 16. Qd4 Qc7 17. Bh4 Nfd7 18. Rd1 f6 19. a4 Qc5 20. Qd2 Ke7 21. axb5 axb5 22. Rxa8 Bxa8 23. Na3 Bc6 24. Bg3 h5 25. Bh4 Ng6 26. Bg3 Nde5 27. Bb1 h4 28. Bf4 Nxf4 29. Qxf4 h3 30. Nc2 Nd3 31. Rxd3 cxd3 32. Nd4 Bd7 33. Bxd3 b4 34. Nf5+ Bxf5 35. exf5 Rg8 36. cxb4 Qe5 37. Qc4 d5 38. Qc5+ Kf7 39. b5 Ra8 40. b6 Ra1+ 41. Bf1 Qe2 42. Qxd5+ Kg7 43. Qb7+ Kh6 0-1

[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.12"]
[Round "5"]
[White "Maassen van den Brink, Koen"]
[Black "Aben, Paul"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1982"]
[BlackElo "1949"]
[PlyCount "26"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 Nbd7 6. Re1 e6 7. b3 Bd6 8. Bb2 0-0 9. Nbd2 h6 10. c4 Ne4 11. a3 Re8 12. Nxe4 Bxe4 13. Nd2 Bxg2 1/2-1/2

[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.11"]
[Round "2"]
[White "Ingelaere, Tijl"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "1737"]
[BlackElo "1982"]
[PlyCount "71"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Be3 Bd7 9. Bxc6 bxc6 10. Nd2 Nxd2 11. Qxd2 0-0 12. 0-0 f6 13. Nb3 Bxe3 14. Qxe3 Re8 15. f4 a5 16. Qd4 fxe5 17. fxe5 Qg5 18. Rae1 Bf5 19. Qf4 Qxf4 20. Rxf4 Bxc2 21. Nd4 Be4 22. Nxc6 a4 23. Rc1 Ra6 24. Nd4 Rb6 25. Rf2 Rb4 26. Nc6 Rc4 27. Rff1 Bd3 28. Rfe1 Rxc1 29. Rxc1 Bc4 30. a3 Re6 31. Na5 Rxe5 32. Nxc4 dxc4 33. Rxc4 Rb5 34. Rxc7 Rxb2 35. Ra7 Rb1+ 36. Kf2 1/2-1/2

[Event "Maastricht Limburg op-B 5th"]
[Site "Maastricht"]
[Date "2011.06.10"]
[Round "1"]
[White "Maassen van den Brink, Koen"]
[Black "Jansen, Michiel"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "1982"]
[BlackElo "1849"]
[PlyCount "111"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d6 2. g3 Nf6 3. Nf3 c6 4. Bg2 Nbd7 5. 0-0 e5 6. dxe5 dxe5 7. b3 Qc7 8. Bb2 Be7 9. e3 0-0 10. Nbd2 Re8 11. Nc4 Bf8 12. a4 e4 13. Nd4 Ne5 14. Nxe5 Qxe5 15. Rb1 Bg4 16. Qd2 Qh5 17. f4 exf3 18. Bxf3 Rad8 19. Qf2 Bxf3 20. Qxf3 Ng4 21. Rf2 Rxe3 22. Qf5 Qxf5 23. Rxf5 g6 24. Rf3 Bc5 25. Rxe3 Nxe3 26. c3 Bb6 27. Kh1 c5 28. Nf3 Rd1+ 29. Rxd1 Nxd1 30. Ba1 Ba5 31. c4 Bc3 32. Bxc3 Nxc3 33. Kg2 f6 34. Nd2 Kf7 35. Kf3 f5 36. Ke3 Kf6 37. Nf3 Ne4 38. a5 Ng5 39. Ne1 Ke5 40. Nd3+ Kd6 41. Ne1 Nf7 42. Kf4 h6 43. h4 Nd8 44. Nf3 Nc6 45. h5 gxh5 46. Kxf5 Nxa5 47. Nd2 Nc6 48. Ne4+ Ke7 49. Nxc5 Nd4+ 50. Ke4 Ne2 51. Kf3 Nc1 52. b4 b6 53. Na4 Nd3 54. c5 Nxb4 55. cxb6 axb6 56. Nxb6 1/2-1/2

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.24"]
[Round "6"]
[White "Maassen van den Brink, Koen"]
[Black "Dittmar, Thomas"]
[Result "1/2-1/2"]
[ECO "B16"]
[WhiteElo "1824"]
[BlackElo "1969"]
[PlyCount "27"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bf4 Bf5 7. Nf3 Nd7 8. Bd3 e6 9. Bxf5 Qa5+ 10. Qd2 Qxf5 11. 0-0-0 Nb6 12. Bg3 h5 13. Kb1 Qb5 14. Qd3 1/2-1/2

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.24"]
[Round "7"]
[White "Van Meegen, Ruud"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1956"]
[BlackElo "1824"]
[PlyCount "47"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Ng5 Ne5 6. Bb3 h6 7. f4 hxg5 8. fxe5 Nxe4 9. Qxd4 Nc5 10. Nc3 Nxb3 11. axb3 g4 12. Bf4 Be7 13. 0-0-0 c6 14. Ne4 0-0 15. h4 f5 16. Ng5 b5 17. Qe3 Qa5 18. Kb1 c5 19. h5 Rb8 20. h6 g6 21. e6 d6 22. Bxd6 Rb7 23. h7+ Kh8 24. Nf7+ 1-0

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.23"]
[Round "4"]
[White "Maassen van den Brink, Koen"]
[Black "De Wit, Albert"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1824"]
[BlackElo "1955"]
[PlyCount "63"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. Nge2 c6 4. d4 d5 5. exd5 cxd5 6. Bf4 a6 7. h3 Nc6 8. g4 h5 9. gxh5 Rxh5 10. Bg2 e6 11. Qd2 Nge7 12. Ng3 Rh4 13. Nce2 Qb6 14. c3 e5 15. Bg5 Rh7 16. dxe5 Nxe5 17. Be3 Qb5 18. 0-0-0 Be6 19. Nd4 Qa4 20. Kb1 Rc8 21. Nxe6 fxe6 22. Rhe1 Kf7 23. Bd4 Nc4 24. Qf4+ Nf5 25. Nxf5 gxf5 26. Bxd5 Rh6 27. Qxf5+ Ke7 28. Rxe6+ Rxe6 29. Qxe6+ Kd8 30. Qg8+ Kc7 31. Qxg7+ Kb8 32. Qxb7# 1-0

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.23"]
[Round "5"]
[White "Sanetra, Chris"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "C63"]
[WhiteElo "2027"]
[BlackElo "1824"]
[PlyCount "54"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 Nf6 5. Bg5 fxe4 6. dxe4 d6 7. Nc3 Be7 8. Bxf6 Bxf6 9. Qd5 Bd7 10. 0-0 Qe7 11. a4 a6 12. Bc4 Rb8 13. Rad1 Bg4 14. Qd3 Nb4 15. Qe2 Be6 16. Bxe6 Qxe6 17. Nd5 Nxd5 18. exd5 Qe7 19. Rfe1 0-0 20. Nd4 Qd7 21. Ne6 Rfe8 22. b3 c6 23. c4 a5 24. Qd2 b6 25. Ng5 Bxg5 26. Qxg5 c5 27. Re4 Rf8 1/2-1/2

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.22"]
[Round "2"]
[White "Heijenrath, Jan"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "1749"]
[BlackElo "1824"]
[PlyCount "124"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. Nxb5 Qa5+ 7. Nc3 Ba6 8. g3 d6 9. Bg2 g6 10. Qa4+ Qxa4 11. Nxa4 Nbd7 12. Nc3 Bg7 13. Nf3 Nb6 14. Nd2 Bb7 15. e4 Ba6 16. Bf1 Bxf1 17. Kxf1 0-0 18. Kg2 Ng4 19. h3 Ne5 20. Nf3 Nd3 21. Rd1 Nxc1 22. Raxc1 Na4 23. Nxa4 Rxa4 24. e5 Rb8 25. a3 Rxb2 26. Rb1 Rxb1 27. Rxb1 Bxe5 28. Nxe5 dxe5 29. Rb8+ Kg7 30. Rc8 Rxa3 31. Rxc5 Rd3 32. Rc7 Rxd5 33. Rxe7 Kf6 34. Ra7 g5 35. Kf3 Rd4 36. Ke3 h5 37. Rb7 Kg6 38. Re7 f6 39. Ra7 Rb4 40. Re7 h4 41. Kf3 hxg3 42. fxg3 Rb3+ 43. Kf2 Rb2+ 44. Kg1 Re2 45. Re6 Kf7 46. Ra6 Rd2 47. g4 Ke7 48. Ra3 Ke6 49. Kf1 e4 50. Ra5 Rd5 51. Ra8 Ke5 52. Ke2 Rb5 53. Re8+ Kd4 54. Rd8+ Ke5 55. Re8+ Kf4 56. Rf8 Rb6 57. Re8 Rb2+ 58. Kf1 Kf3 59. Ke1 e3 60. Kd1 Kf2 61. Kc1 Rb6 62. Kc2 e2 0-1

[Event "Maastricht Limburg op-B 4th"]
[Site "Maastricht"]
[Date "2010.05.21"]
[Round "1"]
[White "Maassen van den Brink, Koen"]
[Black "Roufs, Gerard"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "1824"]
[BlackElo "1984"]
[PlyCount "80"]
[EventDate "2010.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Bd3 Nf6 8. Nxc6 bxc6 9. 0-0 d5 10. exd5 cxd5 11. Qd2 Bd6 12. g3 0-0 13. Bg5 Ng4 14. Qe2 Ne5 15. Rfe1 Nxd3 16. Qxd3 Rb8 17. b3 Bb7 18. Ne2 e5 19. Rad1 Rbc8 20. c3 Qc6 21. Qf3 Qb6 22. Qd3 Rfe8 23. Bc1 Re6 24. Rf1 Qc6 25. f3 Rf6 26. Be3 a5 27. Rc1 Ba6 28. Qd2 Ba3 29. Rcd1 Qb5 30. Nc1 Rfc6 31. f4 Rxc3 32. fxe5 Rc2 33. Qd4 Bb2 34. Qf4 Qb7 35. Nd3 d4 36. Bf2 Qd5 37. e6 fxe6 38. Rd2 Bb7 39. Be1 Qh1+ 40. Kf2 Qxh2# 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.12"]
[Round "7"]
[White "Maassen van den Brink, Koen"]
[Black "Ringoir, Guy"]
[Result "1/2-1/2"]
[ECO "B25"]
[BlackElo "1941"]
[PlyCount "48"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 7. 0-0 Nge7 8. Be3 0-0 9. Qd2 f5 10. f4 fxe4 11. dxe4 b6 12. Nd1 Nd4 13. c3 Nxe2+ 14. Qxe2 Be6 15. c4 Nc6 16. f5 Bf7 17. b3 Nd4 18. Qd2 Rc8 19. Nc3 a6 20. Rf2 Qd7 21. Raf1 b5 22. Nd5 Bxd5 23. cxd5 gxf5 24. Bxd4 exd4 1/2-1/2

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.12"]
[Round "6"]
[White "Staudte, Rainer"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "1990"]
[PlyCount "71"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bf4 Na6 9. Bc4 g5 10. Bxg5 Nxe4 11. Bf4 Qa5 12. f3 b3+ 13. Kf1 Nf6 14. axb3 Qb6 15. Ne2 Bg7 16. Nec3 0-0 17. Kf2 Bb7 18. Qd2 Nb4 19. Na3 Nh5 20. Bh6 Bd4+ 21. Ke2 Ng7 22. Rhe1 e6 23. Rad1 exd5 24. Bxg7 Rfe8+ 25. Kf1 Bxg7 26. Nxd5 Nxd5 27. Bxd5 Bxd5 28. Qxd5 Bxb2 29. Re4 Bxa3 30. Qg5+ Kh8 31. Qf6+ Kg8 32. Rg4+ Kf8 33. Qg7+ Ke7 34. Re4+ Kd8 35. Qf6+ Kc7 36. Qxf7+ 1-0

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.11"]
[Round "5"]
[White "Maassen van den Brink, Koen"]
[Black "Snoeck, Rene"]
[Result "1/2-1/2"]
[ECO "B15"]
[PlyCount "43"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Be6 7. Bxe6 fxe6 8. Nf3 Bd6 9. 0-0 0-0 10. b3 Nd7 11. Bb2 Qc7 12. Re1 Rfe8 13. c4 Rad8 14. Qc2 c5 15. Rad1 a6 16. Re2 Nf8 17. g3 Re7 18. Red2 Red7 19. Qe4 cxd4 20. Nxd4 Be5 21. f4 Bxd4+ 22. Rxd4 1/2-1/2

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.10"]
[Round "3"]
[White "Kalla, Christian"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1964"]
[PlyCount "63"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Be7 9. d4 Ne6 10. Be3 0-0 11. c4 Bg5 12. Nc3 Bxe3 13. fxe3 f6 14. Nf3 Ng5 15. Nxg5 fxg5 16. e4 g4 17. Qd2 Qh4 18. e5 g3 19. hxg3 Qxg3 20. e6 Re8 21. d5 cxd5 22. cxd5 c6 23. Rad1 Qg4 24. Re4 Qg6 25. Rde1 cxd5 26. Qxd5 h6 27. Na4 Qg3 28. Nb6 Rb8 29. Qf5 Rf8 30. Qxf8+ Kxf8 31. e7+ Ke8 32. Rf1 1-0

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.10"]
[Round "2"]
[White "Maassen van den Brink, Koen"]
[Black "Van der Zwet, Bart"]
[Result "0-1"]
[ECO "A28"]
[BlackElo "2057"]
[PlyCount "80"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Bc5 4. d3 Nf6 5. Bg5 h6 6. Bxf6 Qxf6 7. a3 a5 8. g3 b6 9. Bg2 Bb7 10. Nd5 Qd6 11. Nd2 f5 12. 0-0 0-0 13. Nb3 Nd4 14. Nxc5 bxc5 15. e3 Ne6 16. Qd2 c6 17. Nc3 f4 18. Qe2 Rf7 19. Rae1 Raf8 20. f3 g6 21. Ne4 Qe7 22. Bh3 Ng7 23. exf4 exf4 24. Qf2 fxg3 25. Qxg3 Nh5 26. Qd6 Nf4 27. Bg2 Qh4 28. Re3 Bc8 29. Ng3 Rf6 30. Qxc5 Nxg2 31. Kxg2 d6 32. Qxc6 Bh3+ 33. Kg1 Bxf1 34. Qd5+ Kg7 35. Nxf1 R8f7 36. Ng3 Qf4 37. Qe4 Qxe4 38. fxe4 Rf3 39. Rxf3 Rxf3 40. d4 Rb3 0-1

[Event "Maastricht Limburg op"]
[Site "Maastricht"]
[Date "2008.05.09"]
[Round "1"]
[White "Goes, Dirk"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1972"]
[PlyCount "72"]
[EventDate "2008.05.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. e3 d5 5. c4 Bg7 6. cxd5 Qxd5 7. Nc3 Qa5 8. Nf3 f5 9. Nd2 c6 10. g3 0-0 11. a3 Nd7 12. b4 Qd8 13. Nb3 Re8 14. Bg2 Nf6 15. 0-0 Ne4 16. Qc2 Nxc3 17. Qxc3 Qd6 18. Rac1 Re7 19. Qc5 Qxc5 20. Nxc5 Rb8 21. Rc3 Be6 22. Rb1 Bf8 23. a4 Bd5 24. b5 Bxg2 25. Kxg2 cxb5 26. Rxb5 Rc7 27. Ne4 Rbc8 28. Nf6+ Kh8 29. Rcb3 b6 30. Rb2 Kg7 31. Nd5 Rd7 32. a5 bxa5 33. Rxa5 Bc5 34. dxc5 Rxd5 35. Rxa7 Rdxc5 36. Rbb7 Rf8 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Kuijpers, Paul"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "C11"]
[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 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Ne2 Nc6 7. c3 a6 8. g3 b5 9. Bh3 Nb6 10. 0-0 Qc7 11. Ne1 Bd7 12. f4 0-0-0 13. Be3 Nc4 14. Qc1 Qb6 15. Bf2 Be7 16. Nd3 cxd4 17. cxd4 Kb8 18. a4 N6a5 19. Nc5 bxa4 20. Nxd7+ Rxd7 21. Rxa4 Rc8 22. Qa1 Ka8 23. Be1 Qb5 24. Bxa5 Nxa5 25. Nc3 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "De Bruijn, Thijs"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "C01"]
[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 e6 2. d4 d5 3. exd5 exd5 4. Nc3 c6 5. Nf3 Bd6 6. Bd3 Ne7 7. 0-0 Bg4 8. Be2 Qc7 9. h3 Bh5 10. Re1 Nd7 11. Ng5 Bg6 12. Bh5 Nf6 13. Be2 h6 14. Nf3 0-0-0 15. a3 Rdg8 16. Ne5 Kb8 17. Bd3 Rf8 18. Ne2 Rhg8 19. c4 Bxd3 20. Qxd3 Bxe5 21. dxe5 dxc4 22. Qxc4 Nfd5 23. Ng3 f5 24. e6 Re8 25. Ne2 Ka8 26. Nd4 Rgf8 27. b4 Kb8 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Maassen van den Brink, Koen"]
[Black "Terstall, Karel"]
[Result "1/2-1/2"]
[ECO "B78"]
[PlyCount "52"]
[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 0-0 8. Qd2 Nc6 9. 0-0-0 Bd7 10. Bc4 Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. Nde2 Be6 15. Bh6 b5 16. Bxg7 Kxg7 17. h5 Qa5 18. hxg6 fxg6 19. Qh6+ Kg8 20. e5 dxe5 21. Ne4 Rf7 22. N2c3 Bf5 23. Nxf6+ exf6 24. g4 Bd7 25. Ne4 Rc6 26. Nd6 Rg7 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Maassen van den Brink, Koen"]
[Black "Van Rijn, Luuk"]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "94"]
[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 e6 4. Nf3 Be7 5. Be2 0-0 6. 0-0 d6 7. c4 Nb6 8. Nc3 Nc6 9. exd6 cxd6 10. d5 Ne5 11. Nxe5 dxe5 12. Qd3 exd5 13. Nxd5 Be6 14. Nxe7+ Qxe7 15. b3 Rfd8 16. Qg3 f6 17. f4 e4 18. f5 Bd7 19. Be3 Bc6 20. Rf4 Nd7 21. Rh4 Qe5 22. Qe1 Qxf5 23. g4 Qe5 24. Rh3 Nf8 25. Rg3 Ng6 26. Qf1 Rf8 27. Re1 f5 28. gxf5 Qxf5 29. Qxf5 Rxf5 30. Bg4 Rf6 31. Rf1 Rxf1+ 32. Kxf1 b6 33. Ke2 Rd8 34. Rg1 Kf8 35. Rf1+ Ke8 36. Bh5 Rd6 37. Rg1 Kf7 38. Bxg6+ Rxg6 39. Rxg6 Kxg6 40. Kf2 Kf5 41. Kg3 g5 42. h3 h5 43. h4 gxh4+ 44. Kxh4 Be8 45. Kg3 Ke5 46. Kh4 Kf5 47. Kg3 Bd7 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Maassen van den Brink, Koen"]
[Black "Bonte, Holger"]
[Result "1/2-1/2"]
[ECO "C90"]
[PlyCount "105"]
[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 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. h3 Bh5 13. Nbd2 Qc7 14. Nf1 Nc4 15. Ng3 Bg6 16. b3 Nb6 17. Be3 Rfc8 18. Qd2 Rab8 19. Rec1 a5 20. Rab1 Nfd7 21. Bd1 c4 22. Be2 Nc5 23. Bxc5 Qxc5 24. Rb2 cxb3 25. axb3 Rb7 26. Ne1 Nd7 27. Ra2 h6 28. Rxa5 Bg5 29. Qc2 Bxc1 30. Qxc1 Qxc3 31. Qxc3 Rxc3 32. Bxb5 Rxb3 33. Bc6 Rc7 34. Ra8+ Kh7 35. Rd8 Nf6 36. f3 Rb1 37. Kf2 Nh5 38. Nxh5 Bxh5 39. g4 Bg6 40. Rxd6 f6 41. Nd3 Ra7 42. Rd7 Ra2+ 43. Ke3 Ra3 44. Rb7 Rxb7 45. Bxb7 Be8 46. Kd2 Kg8 47. d6 Kf7 48. Bd5+ Kf8 49. Be6 Ra4 50. d7 Bxd7 51. Bxd7 Ra2+ 52. Ke3 g5 53. Be6 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Pots, Maurice"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "46"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 cxd4 7. cxd4 Bd7 8. Bd3 Nb4 9. Be2 Bb5 10. 0-0 Bxe2 11. Qxe2 Rc8 12. Na3 Nc6 13. Be3 Bxa3 14. bxa3 Nge7 15. g4 Na5 16. Nd2 Rc2 17. Rfc1 Rxc1+ 18. Rxc1 Qb2 19. Rc7 Nac6 20. f5 Qb6 21. Rxe7+ Kxe7 22. Bg5+ Kd7 23. f6 Qxd4+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Hijweegen, Claudia"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "D79"]
[PlyCount "95"]
[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. c4 c6 2. g3 d5 3. cxd5 cxd5 4. Nf3 Nf6 5. Bg2 g6 6. Nc3 Bg7 7. d4 0-0 8. 0-0 Nc6 9. a3 Re8 10. e3 Bg4 11. h3 Bc8 12. Ne1 b6 13. Nc2 Ba6 14. Re1 e6 15. b4 Bb7 16. Bd2 Qd7 17. Qe2 Rec8 18. Reb1 Ne8 19. a4 Nd6 20. a5 Rab8 21. axb6 axb6 22. Na3 Ne7 23. Rc1 e5 24. dxe5 Bxe5 25. Rab1 Bg7 26. Qd3 Nc4 27. Nxc4 Rxc4 28. Ne2 Ba6 29. Nc3 Bb7 30. Kh2 b5 31. Ne4 Qf5 32. Nc5 Qc8 33. Bc3 Ra8 34. Bxg7 Kxg7 35. Rc2 Bc6 36. Bf1 Bd7 37. Nxd7 Qxd7 38. Qd1 Rxc2 39. Qxc2 Rc8 40. Qb2+ Kg8 41. Rc1 Qb7 42. Rxc8+ Nxc8 43. Qd4 Nd6 44. Bg2 Ne4 45. Bxe4 dxe4 46. Qd8+ Kg7 47. Qd4+ Kg8 48. Qd8+ 1/2-1/2

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Maassen van den Brink, Koen"]
[Black "Chan, Chung Hong"]
[Result "0-1"]
[ECO "A96"]
[PlyCount "86"]
[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. Nf3 e6 2. c4 f5 3. d4 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 c6 8. Re1 d5 9. b3 Ne4 10. Bb2 Bb4 11. Qc2 Nd7 12. a3 Bd6 13. Nd2 Qg5 14. Rad1 Ndf6 15. Nf3 Qh5 16. Bc1 Ng4 17. Rf1 Bd7 18. e3 Be7 19. Ne2 g5 20. h3 Ngf6 21. Nh2 Bd6 22. Rfe1 Kh8 23. Nf1 g4 24. h4 Qh6 25. Bxe4 fxe4 26. Nf4 Nh5 27. c5 Bc7 28. Qe2 Rg8 29. Bd2 Nf6 30. Ra1 Qg7 31. Reb1 e5 32. Ng2 Bf5 33. Bc3 Nd7 34. b4 Raf8 35. b5 exd4 36. Bxd4 Be5 37. Rd1 Nxc5 38. bxc6 bxc6 39. Rac1 Bxd4 40. exd4 Nb3 41. Rc3 Nxd4 42. Qe3 Nf3+ 43. Kh1 d4 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Willemze, Annemieke"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "85"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 cxd4 7. cxd4 Bd7 8. Nc3 Be7 9. Be2 f6 10. 0-0 Rc8 11. Kh1 Nh6 12. Na4 Qc7 13. Be3 Nf5 14. Bg1 h5 15. Rc1 h4 16. Nc5 Kf7 17. Bf2 Rcg8 18. Kg1 Qc8 19. Qb3 Bxc5 20. Rxc5 a6 21. Rcc1 Qb8 22. Bd3 Nce7 23. Rfe1 Rh6 24. Qb6 Bc6 25. Bxf5 Nxf5 26. Rxc6 bxc6 27. Qxc6 Re8 28. Qxa6 Qxb2 29. a4 Re7 30. exf6 gxf6 31. Qc6 Qb7 32. Qc2 Rh8 33. Qd2 Qa6 34. a5 Ra7 35. Ra1 h3 36. g3 Nd6 37. Qc2 Nc4 38. Nh4 Rg8 39. Qh7+ Rg7 40. Qh5+ Kf8 41. Ng6+ Kg8 42. Rb1 Ra8 43. Be1 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Ammerlaan, Stefan"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "B45"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Bb4 7. Bd3 Bxc3+ 8. bxc3 d5 9. Bg5 e5 10. Nb5 a6 11. exd5 axb5 12. dxc6 bxc6 13. Qf3 Bd7 14. Rd1 0-0 15. Bf5 Ra7 16. Bxf6 gxf6 17. Qg4+ Kh8 18. Qh5 Bxf5 19. Rxd8 Rxd8 20. Qxf5 Rad7 21. Qxf6+ Kg8 22. 0-0 Ra8 23. Qxc6 Rda7 24. Ra1 Rxa2 25. Qxa8+ Rxa8 26. Rxa8+ Kg7 27. Rb8 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Bonte, Holger"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "C45"]
[PlyCount "99"]
[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 Qf6 6. c3 d6 7. Bb5 Nge7 8. Bxc6+ Nxc6 9. Nc2 Bb6 10. 0-0 0-0 11. Nd2 Bd7 12. Nb3 Rfe8 13. Bxb6 axb6 14. Re1 Re7 15. Qd2 Rae8 16. f3 Ne5 17. Qe2 Ng6 18. Ncd4 d5 19. Rf1 Nf4 20. Qe3 Qg5 21. Qd2 c5 22. Nc2 c4 23. g3 cxb3 24. Qxf4 Qxf4 25. gxf4 bxc2 26. Rac1 Bh3 27. Rf2 dxe4 28. Rcxc2 exf3 29. Rxf3 Re1+ 30. Kf2 Rf1+ 31. Kg3 Rxf3+ 32. Kxf3 Bf5 33. Rd2 h6 34. Rd5 Be6 35. Rb5 Bxa2 36. Rxb6 Re7 37. Rb5 Re6 38. Kf2 b6 39. Rb4 Rf6 40. h4 Bd5 41. Rd4 Be6 42. Kf3 Kh7 43. Rb4 Bf5 44. Ke3 Rg6 45. Rb5 Bd7 46. Rd5 Bc6 47. Rf5 f6 48. Kd4 Rg2 49. b4 Kg6 50. Rd5 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Chan, Chung Hong"]
[Black "Maassen van den Brink, Koen"]
[Result "1/2-1/2"]
[ECO "D03"]
[PlyCount "96"]
[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 Nf6 2. Nf3 d5 3. Bg5 e6 4. Nbd2 Nbd7 5. e3 Be7 6. Bd3 c5 7. c3 b6 8. 0-0 0-0 9. Ne5 Nxe5 10. dxe5 Nd7 11. Bxe7 Qxe7 12. f4 c4 13. Bc2 f6 14. Qh5 g6 15. Qh4 Bb7 16. Nf3 Rae8 17. exf6 Rxf6 18. Ba4 Bc8 19. Ne5 Ref8 20. Ng4 R6f7 21. Nh6+ Kg7 22. Qh3 Rf6 23. g4 e5 24. f5 g5 25. Bxd7 Bxd7 26. Qf3 e4 27. Qd1 Bc6 28. Qd4 Kxh6 29. Qd2 Qe5 30. Qf2 Kg7 31. h4 h6 32. Kg2 Bd7 33. Rh1 Be8 34. Rh3 gxh4 35. Qxh4 Rh8 36. Rg1 h5 37. Kh1 Kf8 38. Rh2 Rg8 39. Rhg2 hxg4 40. Rxg4 Rxg4 41. Qh8+ Ke7 42. Rxg4 Rxf5 43. Rg7+ Kd8 44. Qh4+ Kc8 45. Qg4 Bd7 46. Rg8+ Kc7 47. Qg2 Rh5+ 48. Kg1 Rh7 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Huebner, Werner"]
[Black "Maassen van den Brink, Koen"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "100"]
[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. Nf3 Nc6 3. Bb5 Nge7 4. d3 b6 5. Ng5 h6 6. Qh5 g6 7. Qh3 Bg7 8. Nf3 Bb7 9. Nc3 Nb4 10. Ba4 Bc6 11. 0-0 Bxa4 12. Nxa4 Nxc2 13. Rb1 Nb4 14. Nc3 Nxd3 15. Be3 Nxb2 16. Rxb2 Bxc3 17. Rc2 Bg7 18. Rfc1 c6 19. Bf4 b5 20. Ne5 Rc8 21. Qf3 f6 22. Ng4 e5 23. Be3 f5 24. exf5 Nxf5 25. Bc5 d6 26. Rd2 Qe7 27. Ba3 h5 28. Ne3 Nxe3 29. Qxe3 Bh6 30. Qe1 Bxd2 31. Qxd2 c5 32. Bb2 Rf8 33. Rf1 c4 34. Ba3 Rc6 35. Qa5 a6 36. Rd1 Rf6 37. Qe1 Qf8 38. Qe4 Kd7 39. Qe3 Qb8 40. Qxe5 Qd8 41. Bb2 Re6 42. Qf4 Qe7 43. Bc3 Re4 44. Qh6 b4 45. Bxb4 c3 46. h3 Rxb4 47. Qxg6 c2 48. Qf5+ Qe6 49. Qh7+ Qe7 50. Qf5+ Kc7 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Maassen van den Brink, Koen"]
[Black "De Jong, Bert"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "126"]
[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. Bb5 Bd7 6. Nc3 Nf6 7. 0-0 g6 8. Be3 Bg7 9. Qd2 0-0 10. Nxc6 Bxc6 11. Bd3 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. Bh6 Bc6 15. Bxg7 Kxg7 16. Rae1 e6 17. Re3 Qd5 18. Rg3 Qxa2 19. Rh3 Rh8 20. Qh6+ Kg8 21. f4 Qxb2 22. f5 exf5 23. Bxf5 Qg7 24. Qxg7+ Kxg7 25. Bd3 Rhf8 26. Rf4 a5 27. Be2 b5 28. Ra3 Rfc8 29. c3 Rcb8 30. g3 Rc8 31. Kf2 Be8 32. Ke1 f5 33. g4 fxg4 34. Rxg4 Bc6 35. Rd4 Re8 36. Kf2 Rf8+ 37. Kg3 Kf7 38. Rf4+ Ke7 39. Rxf8 Kxf8 40. Kf4 Ke7 41. Ke5 a4 42. Bd3 Rb8 43. Kd4 Kd6 44. Bc2 b4 45. cxb4 Rxb4+ 46. Kc3 Rh4 47. Bd1 Rh3+ 48. Kb4 Rxa3 49. Kxa3 Ke5 50. Be2 Kf5 51. Bf1 Kg4 52. h3+ Kg3 53. Kb2 Bd7 54. Ka3 Kf2 55. Bd3 Be8 56. Kb4 Bd7 57. Ka3 Bxh3 58. Kxa4 Bf5 59. Bc4 h5 60. Bd5 h4 61. Kb4 h3 62. Kc4 h2 63. Kc3 Bg4 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Maassen van den Brink, Koen"]
[Black "Koekoek, Arjen"]
[Result "1/2-1/2"]
[ECO "B45"]
[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 e6 5. Nc3 Bb4 6. Qd3 a6 7. Nxc6 bxc6 8. Bd2 Nf6 9. e5 Nd5 10. Nxd5 Bxd2+ 11. Qxd2 cxd5 12. 0-0-0 0-0 13. g3 d6 14. exd6 Qxd6 15. Bg2 Rb8 16. Kb1 Qb6 17. b3 a5 18. Rc1 Ba6 19. Bf1 Bb7 20. Bg2 Bc6 21. Rhd1 Qa6 22. Bf1 Bb5 23. Bxb5 Qxb5 24. Qd3 Qb6 25. Rd2 Ra8 26. Qd4 Qb7 27. c4 a4 28. Rd3 Qa6 29. Rc2 axb3 30. Rxb3 Qa4 31. Qb2 dxc4 32. Rb4 Qa5 33. Rcxc4 Rfd8 34. Rc1 h6 35. h4 Qf5+ 36. Qc2 Qa5 37. Qb2 Qf5+ 38. Qc2 Qa5 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Maassen van den Brink, Koen"]
[Black "Vahl, Laurens"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "123"]
[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 a6 3. Nf3 b5 4. Nc3 Bb7 5. Bd3 Bb4 6. Bd2 Ne7 7. 0-0 0-0 8. Qe2 f5 9. Rfe1 c5 10. dxc5 Bxc5 11. Be3 Bb4 12. exf5 Nxf5 13. Bd2 Nc6 14. Bxf5 Rxf5 15. Ne4 Bxd2 16. Qxd2 Qe7 17. Nd6 Rxf3 18. gxf3 Rb8 19. Nxb7 Rxb7 20. Rad1 Qf6 21. Qc3 Qg6+ 22. Kh1 b4 23. Qd3 Qxd3 24. Rxd3 Na5 25. b3 Rc7 26. Kg2 Rxc2 27. Rxd7 Rxa2 28. Rxe6 h6 29. Rxa6 Ra3 30. Rda7 Nxb3 31. Rxa3 bxa3 32. Rxa3 Nd4 33. Kh3 Nf5 34. Kg4 Ne7 35. Re3 Kf7 36. Ra3 Kg6 37. f4 h5+ 38. Kf3 Nf5 39. Ke4 Ne7 40. Ra6+ Kf7 41. h4 Ng6 42. Kf5 Nxh4+ 43. Kg5 Ng2 44. Ra7+ Kf8 45. f5 h4 46. f6 gxf6+ 47. Kxf6 Ke8 48. Kg5 Kf8 49. Kg4 Ke8 50. Kh3 Nf4+ 51. Kxh4 Ng6+ 52. Kg5 Ne7 53. f4 Nd5 54. f5 Ne7 55. f6 Nd5 56. Ra8+ Kf7 57. Ra7+ Kf8 58. Kg6 Nf4+ 59. Kf5 Nd5 60. Ke5 Ne3 61. Ke6 Ng4 62. Ra8# 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Maassen van den Brink, Koen"]
[Black "Vivolo, Felipe"]
[Result "0-1"]
[ECO "B95"]
[PlyCount "106"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Be7 8. 0-0 0-0 9. Qd2 h6 10. Bh4 Nxe4 11. Nxe4 Bxh4 12. Bd3 e5 13. Nf3 Bf6 14. Rac1 Be6 15. c4 Nc6 16. b4 d5 17. Nxf6+ Qxf6 18. cxd5 Bxd5 19. Bh7+ Kxh7 20. Qxd5 Nxb4 21. Qe4+ Kg8 22. Qxb4 b5 23. Rfe1 Rfe8 24. Qb2 e4 25. Qxf6 gxf6 26. Nh4 Re5 27. Rc6 Kg7 28. f3 e3 29. f4 Re4 30. g3 Rd8 31. Nf5+ Kg6 32. Nxe3 Rd3 33. Kf2 Rd2+ 34. Kf3 Ra4 35. f5+ Kg7 36. h3 Raxa2 37. Ng4 b4 38. Rxf6 h5 39. Rb6 hxg4+ 40. hxg4 a5 41. f6+ Kg6 42. Re8 Ra3+ 43. Re3 Rdd3 44. Rxd3 Rxd3+ 45. Kf4 Rb3 46. Rb5 Rb1 47. Rxa5 b3 48. g5 b2 49. Ra2 Rf1+ 50. Kg4 b1Q 51. Rh2 Qf5+ 52. Kh4 Qxg5+ 53. Kh3 Rg1 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "1998.??.??"]
[Round "?"]
[White "Wulffers, Silvester"]
[Black "Maassen van den Brink, Koen"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "63"]
[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 Nf6 3. Nxe5 Qe7 4. d4 d6 5. Nf3 Nxe4 6. Be3 Nc6 7. Bd3 Bf5 8. 0-0 g6 9. Re1 Bg7 10. Bxe4 Bxe4 11. Nc3 0-0 12. Bg5 Bxf3 13. Bxe7 Bxd1 14. Bxf8 Rxf8 15. Raxd1 Nxd4 16. Re7 Rc8 17. Re4 Nxc2 18. Nd5 Kf8 19. Rc4 Nd4 20. Rcxd4 Bxd4 21. Rxd4 c6 22. Rc4 b5 23. Rc3 f5 24. g3 c5 25. Ra3 c4 26. Rxa7 h6 27. Rb7 Rc5 28. Nf4 Kg8 29. Nxg6 d5 30. Ne7+ Kf8 31. Nxf5 Ke8 32. Ng7+ 1-0

