[Event "Groningen Compact-A"]
[Site "Groningen"]
[Date "2015.12.30"]
[Round "5"]
[White "Klapwijk, Bram"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2197"]
[BlackElo "2052"]
[PlyCount "107"]
[EventDate "2015.12.26"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. Nc3 e6 4. e5 Nge7 5. Nf3 Nf5 6. Bf4 Be7 7. g4 Nh4 8. Nxh4 Bxh4 9. Qd2 f6 10. Bb5 0-0 11. 0-0 fxe5 12. dxe5 Bd7 13. Bd3 Qe7 14. a3 g5 15. Bg3 Bxg3 16. fxg3 Nxe5 17. Qe2 Qc5+ 18. Kg2 Qd4 19. Bxh7+ Kxh7 20. Rad1 Qxg4 21. Qxe5 d4 22. h3 Bc6+ 23. Kh2 Qxd1 24. Rxd1 Rf2+ 25. Kg1 Rg2+ 26. Kf1 Rf8+ 27. Ke1 Rg1+ 28. Ke2 Rg2+ 29. Kd3 dxc3 30. Kxc3 Rff2 31. Rc1 Rf3+ 32. Kb4 Rgxg3 33. Qxc7+ Kh6 34. c4 a5+ 35. Kc5 Rf5+ 36. Kb6 Rb3+ 37. Ka7 Rxh3 38. Qc8 Re3 39. Rc2 Kg6 40. Rh2 Rf7 41. Qh8 Kf5 42. Rf2+ Rf3 43. Qh5 Ke4 44. Qg6+ Kd4 45. Rd2+ Ke5 46. Re2+ Kd4 47. Qxe6 b5+ 48. Kb6 bxc4 49. Rd2+ Rd3 50. Rxd3+ Kxd3 51. Qxf7 Ba4 52. Qf2 Ke4 53. Kxa5 Bd1 54. Kb4 1-0

[Event "Groningen Compact-A"]
[Site "Groningen"]
[Date "2015.12.29"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "De Roda Husman, Juan"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2052"]
[BlackElo "2209"]
[PlyCount "77"]
[EventDate "2015.12.26"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 Bb4+ 8. Nc3 Bxf3 9. Bxf3 Qc4 10. Bxc6+ bxc6 11. Qe2+ Qxe2+ 12. Kxe2 0-0-0 13. Be3 Ne7 14. a3 Ba5 15. Rhd1 Rhe8 16. Kf3 Nf5 17. g4 Nd6 18. Na4 Bb6 19. Rac1 Kb7 20. Nc5+ Bxc5 21. Rxc5 Re6 22. d5 cxd5 23. Rcxd5 Rde8 24. R1d3 Nc4 25. Rb3+ Nb6 26. Rd7 R8e7 27. Rd8 Re8 28. Rd7 R8e7 29. Rd8 Re8 30. Rxe8 Rxe8 31. h4 f6 32. g5 Re6 33. gxf6 Rxf6+ 34. Kg4 Kc6 35. Rc3+ Kd7 36. Rd3+ Kc6 37. Rc3+ Kd7 38. Rd3+ Kc6 39. Rc3+ 1/2-1/2

[Event "Groningen Compact-A"]
[Site "Groningen"]
[Date "2015.12.28"]
[Round "3"]
[White "Nguyen, Kevin"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2048"]
[BlackElo "2052"]
[PlyCount "70"]
[EventDate "2015.12.26"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 Nf6 3. d3 e5 4. g3 d5 5. Nbd2 Bg4 6. Bg2 Qd7 7. h3 Bxf3 8. Qxf3 Nb4 9. Qd1 Qc6 10. 0-0 Qxc2 11. Qf3 Qxd3 12. Qf5 Nc6 13. Nb3 Be7 14. h4 g6 15. Qh3 Nxe4 16. Be3 Nf6 17. Rfd1 Qf5 18. Qh1 0-0 19. Bh3 Qe4 20. Bg2 Qb4 21. Bxd5 Nxd5 22. Qxd5 Rad8 23. Qf3 Nd4 24. Nxd4 exd4 25. Bh6 Rfe8 26. Qf4 Qb6 27. Rac1 c5 28. Qe5 Bf8 29. Qg5 Bxh6 30. Qxh6 Re5 31. Re1 Rde8 32. Rxe5 Rxe5 33. Qf4 Qe6 34. Kg2 Qf5 35. Qxf5 Rxf5 0-1

[Event "Groningen Compact-A"]
[Site "Groningen"]
[Date "2015.12.27"]
[Round "2"]
[White "Van Herwaarden, Arjen"]
[Black "Kollen, Zyon"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2052"]
[BlackElo "2290"]
[PlyCount "55"]
[EventDate "2015.12.26"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 Qxd5 5. Nf3 Nf6 6. Bd3 Bd7 7. 0-0 Bxc3 8. bxc3 Bb5 9. Rb1 Bxd3 10. Qxd3 0-0 11. c4 Qc6 12. Ne5 Qa6 13. Qg3 Nc6 14. Bh6 Ne8 15. Nd7 Nxd4 16. Nf6+ Kh8 17. Bxg7+ Nxg7 18. Qh4 Ne2+ 19. Kh1 h5 20. Rb5 e5 21. Rxe5 Rg8 22. Rxh5+ Nxh5 23. Qxh5+ Kg7 24. Qg5+ Kf8 25. Qxg8+ Ke7 26. Nd5+ Kd6 27. Qxa8 Qxc4 28. Ne3 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.30"]
[Round "9"]
[White "Van Herwaarden, Arjen"]
[Black "Cako, Laszlo"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2162"]
[BlackElo "2155"]
[PlyCount "51"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. a3 e5 2. e3 g6 3. d4 exd4 4. exd4 Bg7 5. Nc3 d5 6. Bf4 Ne7 7. Qd2 c6 8. Nf3 Bg4 9. Ne5 Be6 10. h4 h5 11. Be2 Nd7 12. Nxd7 Qxd7 13. Nd1 Nf5 14. c3 b6 15. Ne3 Nd6 16. f3 a5 17. a4 Bf6 18. Bd3 Kf8 19. Qf2 Re8 20. 0-0 Kg7 21. Be5 Re7 22. g4 Ne8 23. g5 Bxe5 24. dxe5 d4 25. cxd4 Qxd4 26. Nf5+ 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.29"]
[Round "8"]
[White "Ten Vergert, Paul"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C04"]
[WhiteElo "2071"]
[BlackElo "2162"]
[PlyCount "27"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. c3 f6 7. Bb5 fxe5 8. dxe5 Bc5 9. Nb3 0-0 10. 0-0 Bb6 11. Re1 Qe8 12. Bxc6 bxc6 13. Nbd4 c5 14. Ne2 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.27"]
[Round "6"]
[White "Van Herwaarden, Arjen"]
[Black "Warmelink, Evie"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "2162"]
[BlackElo "1970"]
[PlyCount "25"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 e6 6. Nf3 Nge7 7. 0-0 0-0 8. c3 d5 9. e5 b5 10. Be3 c4 11. Re1 Rb8 12. Na3 Qc7 13. Nc2 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.26"]
[Round "5"]
[White "Holm Pedersen, Sejer"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2256"]
[BlackElo "2162"]
[PlyCount "119"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 e6 2. e3 f5 3. Bd3 Nf6 4. Nd2 b6 5. e4 Bb7 6. Qe2 Be7 7. Ngf3 fxe4 8. Nxe4 Nxe4 9. Bxe4 Bxe4 10. Qxe4 c6 11. h4 Na6 12. Ng5 Qc7 13. Nxh7 0-0-0 14. Ng5 Rdf8 15. Bd2 Rf5 16. Nf3 Qd8 17. g4 Rxf3 18. Qxf3 Bxh4 19. 0-0-0 Rf8 20. Qd3 Nc7 21. f4 Nd5 22. Rdf1 Be7 23. c4 Nc7 24. Rh7 Rf7 25. Qg6 Qf8 26. Rfh1 Rxf4 27. Rh8 Rf1+ 28. Kc2 Rxh1 29. Rxf8+ Bxf8 30. Qf7 Rh8 31. Bf4 Kd8 32. Be5 Ne8 33. Bb8 Nd6 34. Bxd6 Bxd6 35. Qxg7 Rf8 36. g5 c5 37. d5 exd5 38. cxd5 Rf5 39. g6 Kc7 40. Qh7 Be5 41. g7 Rf2+ 42. Kd3 Bxg7 43. Qxg7 Rf1 44. Qe5+ Kb7 45. Qe8 Rd1+ 46. Kc3 Rxd5 47. Qe4 Kc6 48. a4 a6 49. a5 b5 50. b3 Kd6 51. Qg6+ Ke5 52. Qxa6 b4+ 53. Kc4 d6 54. Qb7 Rd4+ 55. Kb5 c4 56. Qe7+ Kf5 57. bxc4 b3 58. Qh7+ Ke5 59. Qb1 d5 60. c5 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.24"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Slagter, David"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2162"]
[BlackElo "2108"]
[PlyCount "100"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qh5 a6 8. Nf3 c5 9. dxc5 Nxc5 10. Bd3 Nc6 11. 0-0-0 Bd7 12. Rhe1 0-0-0 13. Kb1 f5 14. Bf1 Be8 15. Qg5 Qxg5 16. Nxg5 h6 17. Nh3 Bh5 18. Be2 d4 19. Bxh5 dxc3 20. Bf3 Rxd1+ 21. Bxd1 Rd8 22. Bf3 g5 23. Bxc6 bxc6 24. bxc3 Na4 25. Kc1 Nxc3 26. Kb2 Nb5 27. c4 Nd4 28. f4 g4 29. Ng1 Kc7 30. Kc3 Kb6 31. Rb1+ Ka5 32. Rb2 c5 33. Rd2 Ka4 34. h3 Rg8 35. h4 Ka3 36. Rb2 a5 37. g3 a4 38. h5 Rd8 39. Rd2 Rb8 40. Ne2 Nxe2+ 41. Rxe2 Rd8 42. Re1 Rb8 43. Re2 Rb1 44. Rd2 Rc1+ 45. Kd3 Rg1 46. Kc2 Kxa2 47. Rd5 Rg2+ 48. Kc1 Kb3 49. Rxc5 a3 50. Ra5 a2 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.23"]
[Round "3"]
[White "Rauw, Gert Jan"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2070"]
[BlackElo "2162"]
[PlyCount "83"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. c3 f6 7. Bb5 Be7 8. exf6 Bxf6 9. 0-0 0-0 10. Re1 Re8 11. Bxc6 bxc6 12. Ne5 Bxe5 13. dxe5 Rf8 14. Qg4 Rf5 15. f4 c5 16. Nf3 Nf8 17. Be3 Qe7 18. Nh4 Rf7 19. Rad1 Rb8 20. b3 a5 21. Nf3 h6 22. Bf2 Bd7 23. Nd2 Rf5 24. Nf1 h5 25. Qf3 Ng6 26. g3 h4 27. Qg4 Be8 28. Ne3 Rf8 29. Ng2 hxg3 30. hxg3 a4 31. bxa4 Rb2 32. Ra1 Nh8 33. Nh4 c4 34. Be3 g6 35. a5 c5 36. a6 Kf7 37. Reb1 Rxb1+ 38. Rxb1 Bc6 39. Nf3 Re8 40. Rb6 Bd7 41. a7 Kg7 42. Qg5 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.22"]
[Round "2"]
[White "Van Herwaarden, Arjen"]
[Black "Grover, Sahaj"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "2162"]
[BlackElo "2372"]
[PlyCount "80"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Ne2 Be7 8. g3 0-0 9. Bg2 cxd4 10. Nexd4 Nc5 11. 0-0 f6 12. c3 fxe5 13. fxe5 Bd7 14. Bh3 a5 15. Qe2 Qe8 16. Be3 Qh5 17. Nxc6 bxc6 18. Bg2 Bc8 19. Nd4 Qxe2 20. Rxf8+ Bxf8 21. Nxe2 Nd3 22. Nf4 Nxe5 23. Re1 Nf7 24. Bd4 Bd7 25. Kf1 Re8 26. Bb6 a4 27. Nd3 a3 28. b4 e5 29. Bc7 e4 30. Nf4 g5 31. Nh5 Be7 32. h3 Rc8 33. Bb6 Ne5 34. Bd4 Rf8+ 35. Ke2 Nf3 36. Bxf3 Rxf3 37. Rh1 Bc8 38. g4 Rxh3 39. Rxh3 Bxg4+ 40. Ke3 Bxh3 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.21"]
[Round "1"]
[White "Van der Wiel, John"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2475"]
[BlackElo "2162"]
[PlyCount "77"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Be2 f6 7. exf6 Qxf6 8. Nf1 Bd6 9. Ne3 0-0 10. 0-0 Qg6 11. b3 Nf6 12. Bb2 Ne4 13. g3 Bd7 14. c4 dxc4 15. bxc4 Qh6 16. Qd3 Ng5 17. Nxg5 Qxg5 18. c5 Be7 19. f4 Qf6 20. Bf3 Rfd8 21. Be4 h5 22. Qc4 Kh8 23. Rad1 Qf8 24. Bg6 Qf6 25. Bxh5 Qh6 26. Bf3 Rab8 27. d5 Na5 28. Qc3 b6 29. Ng4 Qh7 30. d6 cxd6 31. Be4 Qg8 32. cxd6 Rbc8 33. Qf3 Bxd6 34. Rxd6 Nc4 35. Qg2 Qf8 36. Qh3+ Kg8 37. Qh7+ Kf7 38. Ne5+ Ke8 39. Qh5+ 1-0

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.25"]
[Round "9"]
[White "Van den Dikkenberg, Erik"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2135"]
[BlackElo "2133"]
[PlyCount "102"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. e5 f6 5. exf6 Nxf6 6. Nf3 Bd6 7. Bd3 0-0 8. Bg5 Qe8 9. Nb5 e5 10. Nxd6 cxd6 11. Be2 e4 12. Nh4 h6 13. Bxf6 Rxf6 14. g3 Bh3 15. c3 Qe6 16. g4 Raf8 17. Nf5 Ne7 18. Nxe7+ Qxe7 19. Qb3 Qf7 20. 0-0-0 Rxf2 21. Rde1 e3 22. Rhg1 Bg2 23. Bd3 Re8 24. Qb5 Re7 25. h4 Qf3 26. Be2 Qe4 27. g5 hxg5 28. hxg5 Qf5 29. g6 Be4 30. Qb4 Bb1 31. Qb3 Qe4 32. Rg4 Qf5 33. Rgg1 b5 34. a3 a5 35. a4 b4 36. Rh1 Rb7 37. c4 Rc7 38. Rh5 Qxg6 39. c5 Be4 40. Qxe3 Rg2 41. Qh3 dxc5 42. Rh8+ Kf7 43. Rc8 Qg5+ 44. Kd1 Rxc8 45. Rf1+ Ke7 46. Qxc8 Bc2+ 47. Kxc2 Rxe2+ 48. Kb1 Rxb2+ 49. Ka1 Ra2+ 50. Kb1 Rb2+ 51. Ka1 Ra2+ 1/2-1/2

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.24"]
[Round "8"]
[White "Van Herwaarden, Arjen"]
[Black "Homs, Guust"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "2133"]
[BlackElo "2196"]
[PlyCount "68"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 Bc5 5. Bg2 d6 6. d3 a6 7. 0-0 0-0 8. Be3 Ba7 9. Bxa7 Rxa7 10. Nh4 Nd4 11. Ne2 Nxe2+ 12. Qxe2 Re8 13. f4 exf4 14. Qf2 c5 15. Qxf4 b6 16. Nf5 Bxf5 17. Qxf5 Rae7 18. Rf2 Qd7 19. Bh3 Qxf5 20. Rxf5 Re5 21. Raf1 Rxf5 22. Rxf5 Kf8 23. Kf2 Re5 24. c3 Ke7 25. Kf3 g6 26. Rxe5+ dxe5 27. Ke3 Kd6 28. Kf3 Ng8 29. Bc8 a5 30. Ba6 Ne7 31. Bc4 f6 32. Bf7 Kc6 33. Be8+ Kd6 34. Bf7 Kc6 1/2-1/2

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.23"]
[Round "7"]
[White "Van Herwaarden, Arjen"]
[Black "Ootes, Lars"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2133"]
[BlackElo "2064"]
[PlyCount "42"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. c3 b5 9. Be3 b4 10. e5 0-0 11. exd6 Qxd6 12. Ne5 Nd5 13. Nc4 Qe7 14. Qd2 Ba6 15. a3 bxc3 16. Nxc3 Bxc4 17. Rfc1 Nxe3 18. Bxc6 Rad8 19. Be4 Bxd3 20. Bxd3 c4 21. Nb5 Rxd3 0-1

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.22"]
[Round "6"]
[White "Van Tol, Leon J"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2239"]
[BlackElo "2133"]
[PlyCount "125"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. e3 d5 6. cxd5 Nb4 7. d4 exd4 8. exd4 Be7 9. a3 Nbxd5 10. Nge2 c6 11. 0-0 0-0 12. h3 Be6 13. Re1 Re8 14. g4 Qd7 15. Ng3 Rad8 16. Nce2 Nc7 17. Qc2 Nb5 18. Rd1 Nd5 19. f4 f6 20. Be4 h6 21. Bg6 Bf7 22. Bxf7+ Kxf7 23. Qh7 Rh8 24. Qd3 g6 25. f5 g5 26. b4 Bd6 27. Ne4 Rde8 28. Bd2 Bb8 29. a4 Nbc7 30. Nc5 Qc8 31. Re1 h5 32. Ne4 Na8 33. N2c3 hxg4 34. hxg4 Qc7 35. Nf2 Qh2+ 36. Kf1 Bg3 37. Ncd1 Rxe1+ 38. Bxe1 Nf4 39. Qf3 Nb6 40. Ra3 Bxf2 41. Nxf2 Nbd5 42. Bd2 Re8 43. b5 Ne2 44. Qxe2 Rxe2 45. Kxe2 Nf4+ 46. Bxf4 Qxf4 47. bxc6 bxc6 48. Re3 Qxd4 49. Re6 Qc4+ 50. Ke3 Qf4+ 51. Ke2 c5 52. Re4 Qc1 53. Re6 Qc4+ 54. Ke1 Qf4 55. Ke2 c4 56. Re4 Qc1 57. Re6 Qb2+ 58. Ke1 Qb1+ 59. Ke2 Qa2+ 60. Ke1 c3 61. Ne4 c2 62. Kd2 Qxa4 63. Rxf6+ 0-1

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.21"]
[Round "5"]
[White "Van Herwaarden, Arjen"]
[Black "Van Rijn, Anton"]
[Result "0-1"]
[ECO "B09"]
[WhiteElo "2133"]
[BlackElo "2201"]
[PlyCount "128"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. e5 Nfd7 6. Nf3 c5 7. exd6 0-0 8. Be3 exd6 9. Qd2 Nc6 10. 0-0-0 Qa5 11. f5 cxd4 12. Nxd4 Nxd4 13. Bxd4 Ne5 14. fxg6 hxg6 15. Kb1 Be6 16. a3 a6 17. Be2 b5 18. Ne4 b4 19. Qxb4 Qd5 20. Nc3 Qxg2 21. Rhg1 Qxh2 22. Rh1 Qg2 23. Rdg1 Qc6 24. Bxe5 dxe5 25. Qh4 Rfc8 26. Bd3 e4 27. Bxe4 Qb6 28. Bxg6 Bxc3 29. Bxf7+ Kxf7 30. Qf4+ Ke8 31. Qa4+ Qb5 32. Qxb5+ axb5 33. bxc3 Rxa3 34. Rh8+ Ke7 35. Rg7+ Kf6 36. Rxc8 Kxg7 37. Rc7+ Kf6 38. Rc6 Ke7 39. Kb2 Ra2+ 40. Kb1 Ra7 41. Rb6 Bc4 42. Kb2 Rd7 43. Rh6 Rd6 44. Rh7+ Ke6 45. Rh6+ Kd5 46. Rh5+ Kc6 47. Rh8 Bd5 48. Rc8+ Kb6 49. Rh8 Kc5 50. Rc8+ Bc6 51. Rh8 Rg6 52. Rh5+ Bd5 53. Rh8 Rg2 54. Rh5 Re2 55. Rh8 Be4 56. Rc8+ Kb6 57. Re8 Rxc2+ 58. Kb3 Re2 59. Kb4 Bd3 60. Rh8 Bc4 61. Rh6+ Be6 62. Rf6 Rb2+ 63. Ka3 Ra2+ 64. Kb4 Ra4# 0-1

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.20"]
[Round "4"]
[White "Van Rijn, Wouter"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "A96"]
[WhiteElo "2203"]
[BlackElo "2133"]
[PlyCount "108"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. c4 d6 7. b4 Ne4 8. Qb3 a5 9. bxa5 Nc6 10. Bb2 Bf6 11. Rd1 Nxa5 12. Qc2 Qe7 13. Nfd2 Nxd2 14. Nxd2 Nc6 15. Nb3 Qf7 16. a4 Na5 17. Nxa5 Rxa5 18. Bc3 Ra7 19. f4 b6 20. e3 Bb7 21. Bxb7 Rxb7 22. a5 bxa5 23. Rxa5 Rfb8 24. Rda1 Qh5 25. Kg2 g5 26. c5 Qe8 27. fxg5 Bxg5 28. e4 Rb3 29. exf5 exf5 30. Qxf5 Qe2+ 31. Kh3 Qh5+ 32. Kg2 Rb2+ 33. Bxb2 Rxb2+ 34. Qf2 Rxf2+ 35. Kxf2 Qxh2+ 36. Kf3 Qh5+ 37. Kg2 Qe2+ 38. Kh3 Qe6+ 39. Kh2 Be3 40. cxd6 Qxd6 41. d5 Bb6 42. Rb5 Bf2 43. Rb3 Qxd5 44. Rab1 Qc6 45. Rf1 Bd4 46. Rb8+ Kg7 47. Rf4 h5 48. Rb3 Be5 49. Rfb4 Qf6 50. Kg2 Qc6+ 51. Kh2 Qc2+ 52. Kh3 Qf2 53. Rb7 Qg1 54. Kh4 Kg6 0-1

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.19"]
[Round "3"]
[White "Van Herwaarden, Arjen"]
[Black "Haast, Mark"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2133"]
[BlackElo "2028"]
[PlyCount "84"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe5+ 4. Be2 c6 5. Nf3 Qc7 6. d4 Bf5 7. Be3 e6 8. Qd2 Nf6 9. Nh4 Bg6 10. 0-0-0 Bb4 11. Bf3 Nd5 12. Bxd5 cxd5 13. Kb1 Qc6 14. Nxg6 hxg6 15. Qd3 Bxc3 16. Qxc3 Qxc3 17. bxc3 Nd7 18. c4 dxc4 19. d5 e5 20. f4 exf4 21. Bxf4 Nf6 22. Kb2 Kd7 23. Rd4 b5 24. a4 a6 25. Kc3 Rhe8 26. axb5 g5 27. Bg3 axb5 28. Kb4 Ra4+ 29. Kxb5 Rea8 30. Be1 Ne8 31. Bb4 Nd6+ 32. Bxd6 Kxd6 33. Rhd1 R8a5+ 34. Kb6 Rc5 35. Rb1 Ra2 36. Rd2 c3 37. Rd4 Rxc2 38. Rf1 Rb2+ 39. Ka6 c2 40. Rd2 Rc3 41. Ra1 c1Q 42. Rxc1 Ra3# 0-1

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.18"]
[Round "2"]
[White "Meurs, Tom WA"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C04"]
[WhiteElo "2008"]
[BlackElo "2133"]
[PlyCount "144"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. c3 f6 7. exf6 Qxf6 8. Bb5 Bd6 9. Nb3 0-0 10. Bg5 Qf7 11. 0-0 Qh5 12. Nbd2 Bxh2+ 13. Nxh2 Qxg5 14. Re1 Nf6 15. Re3 Bd7 16. Qe2 Rae8 17. Re1 Rf7 18. Bxc6 bxc6 19. Nhf3 Qg4 20. Ne5 Qxe2 21. R3xe2 Rff8 22. Nb3 c5 23. Nxc5 Bb5 24. Re3 Re7 25. a4 Be8 26. b4 g6 27. f3 Nh5 28. Ned3 Ng7 29. g4 Bf7 30. Kg2 h5 31. Ne5 Be8 32. b5 g5 33. Rb1 Kh7 34. gxh5 Nf5 35. Rd3 Bxh5 36. Rh1 Nh4+ 37. Kf2 Kg7 38. Rh3 Bg6 39. Rd1 Bh5 40. Rg1 Kh6 41. Ncd3 Ree8 42. Ke3 Rf5 43. f4 Ref8 44. Rgh1 Ng2+ 45. Kd2 Nxf4 46. Ng4+ Kg7 47. Rxh5 Nxh5 48. Rxh5 Rh8 49. Rxh8 Kxh8 50. Nde5 Kg7 51. Ke2 Rf4 52. a5 Re4+ 53. Ne3 Rh4 54. a6 Rh2+ 55. Kd3 Rb2 56. c4 Rb3+ 57. Ke2 dxc4 58. N3xc4 Rxb5 59. Nc6 Rb1 60. N4e5 Rb6 61. Nxa7 Rxa6 62. Nb5 Kf6 63. Nxc7 Ra2+ 64. Kd3 Ra1 65. Nb5 Rd1+ 66. Ke2 Ra1 67. Nd6 Ra6 68. Ng4+ Kg6 69. Ne5+ Kh5 70. Ne4 Ra4 71. Ke3 Ra3+ 72. Ke2 Ra2+ 1/2-1/2

[Event "Arnhem Euwe Stimulans-B"]
[Site "Arnhem"]
[Date "2007.08.17"]
[Round "1"]
[White "Van Herwaarden, Arjen"]
[Black "Van der Velden, Bram"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2133"]
[BlackElo "2079"]
[PlyCount "57"]
[EventDate "2007.08.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. g4 Bg7 5. Bg2 e5 6. h3 Nge7 7. Nge2 d6 8. Be3 Nd4 9. Ng3 Be6 10. Nd5 0-0 11. c3 Ndc6 12. Qd2 b5 13. Bh6 f6 14. 0-0 b4 15. Bxg7 Kxg7 16. f4 bxc3 17. bxc3 exf4 18. Nxf4 Bf7 19. Qf2 Qa5 20. e5 fxe5 21. Nfh5+ gxh5 22. Qf6+ Kg8 23. Bxc6 Nd5 24. Qg5+ Kh8 25. Bxa8 Qxc3 26. Bxd5 Qd4+ 27. Kh2 Qxd5 28. Qf6+ Kg8 29. Nf5 1-0

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.11"]
[Round "9"]
[White "Kuling, Lody"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2236"]
[BlackElo "2002"]
[PlyCount "81"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Nc6 4. Nf3 Nf6 5. Bg5 Be7 6. e5 Ne4 7. Bxe7 Qxe7 8. Nxe4 dxe4 9. Nd2 Nxd4 10. Nxe4 Nc6 11. Qg4 Kf8 12. Qf4 Qb4+ 13. c3 Qxb2 14. Rd1 Qa3 15. Bb5 Qe7 16. 0-0 Bd7 17. Rd3 Nd4 18. Rxd4 Bxb5 19. Rfd1 b6 20. c4 Bc6 21. Nf6 h6 22. h4 gxf6 23. exf6 Qc5 24. Rd8+ Rxd8 25. Rxd8+ Be8 26. Qg3 Rg8 27. Rxe8+ Kxe8 28. Qxg8+ Qf8 29. Qxf8+ Kxf8 30. h5 c6 31. g4 Ke8 32. Kf1 a5 33. Ke2 b5 34. cxb5 cxb5 35. Kd3 e5 36. Ke4 Kd7 37. g5 Ke6 38. gxh6 Kxf6 39. Kd5 b4 40. Kc4 e4 41. Kb3 1-0

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.10"]
[Round "7"]
[White "Stoffers, Jeffrey"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1811"]
[BlackElo "2002"]
[PlyCount "34"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 f5 2. e3 Nf6 3. Nc3 g6 4. Nge2 Bg7 5. g3 0-0 6. Bg2 e5 7. d3 c6 8. Qb3 Na6 9. 0-0 d6 10. f4 Qc7 11. e4 Be6 12. Qc2 Ng4 13. h3 Qb6+ 14. Kh1 Nf2+ 15. Kh2 Nb4 16. Na4 Nxc2 17. Nxb6 axb6 0-1

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.10"]
[Round "8"]
[White "Van Herwaarden, Arjen"]
[Black "Sarrau, Jelle"]
[Result "1/2-1/2"]
[ECO "C17"]
[WhiteElo "2002"]
[BlackElo "2202"]
[PlyCount "32"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Nh6 6. Nb5 Bxd2+ 7. Qxd2 0-0 8. f4 a6 9. Nd6 cxd4 10. Nf3 Nc6 11. Nxd4 Nxd4 12. Qxd4 f6 13. 0-0-0 fxe5 14. fxe5 Qg5+ 15. Kb1 Ng4 16. Re1 Rf4 1/2-1/2

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.09"]
[Round "6"]
[White "Van Herwaarden, Arjen"]
[Black "Schenkeveld, Daniel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2002"]
[BlackElo "2183"]
[PlyCount "66"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. g4 Bg7 5. Bg2 d6 6. f4 h5 7. g5 e5 8. Nf3 Nge7 9. 0-0 Be6 10. Nh4 exf4 11. Bxf4 0-0 12. Qf3 Ne5 13. Qg3 Qb6 14. Rab1 N7c6 15. Kh1 Nd4 16. Rf2 c4 17. dxc4 Bxc4 18. Nd5 Bxd5 19. exd5 Ng4 20. Rd2 Rfe8 21. Bf3 Rac8 22. Bxg4 hxg4 23. Be3 Qa5 24. Ng2 Qxa2 25. Rf1 Nf5 26. Qxg4 Qxb2 27. Rdf2 Rxc2 28. Rxf5 gxf5 29. Qxf5 Rf8 30. g6 Rc7 31. Nh4 Qe5 32. Qh3 Qxd5+ 33. Ng2 fxg6 0-1

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.08"]
[Round "5"]
[White "Euser, Kasper"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1921"]
[BlackElo "2002"]
[PlyCount "74"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. e5 f6 4. f4 Nh6 5. Nf3 Bf5 6. Bd3 e6 7. c3 Be4 8. 0-0 f5 9. Ng5 Qd7 10. Bb5 Nf7 11. Nxe4 dxe4 12. Be3 a6 13. Ba4 b5 14. Bc2 Be7 15. a4 b4 16. c4 Rd8 17. a5 Nxd4 18. Ba4 c6 19. Rf2 Nf3+ 20. gxf3 Qxd1+ 21. Bxd1 Rxd1+ 22. Rf1 Rd3 23. Kf2 exf3 24. Nd2 g5 25. Nxf3 gxf4 26. Bxf4 Bc5+ 27. Ke2 Rb3 28. Rab1 Rg8 29. Kd1 Rg2 30. Bd2 Rd3 31. Kc2 Nxe5 32. Nxe5 Rdxd2+ 33. Kb3 Rxh2 34. Nxc6 Rh3+ 35. Ka4 Rxb2 36. Nxb4 Ra2+ 37. Nxa2 Ra3# 0-1

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.08"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Zimmermann, Dries"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2002"]
[BlackElo "1675"]
[PlyCount "83"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. d3 Nc6 5. Bg2 g6 6. f4 Bg7 7. Nf3 0-0 8. 0-0 Qc7 9. h3 Rd8 10. Nh4 e6 11. g4 d5 12. e5 Ne8 13. g5 Nd4 14. Ne2 Nf5 15. Nxf5 exf5 16. d4 b6 17. dxc5 Qxc5+ 18. Nd4 Nd6 19. Be3 Nc4 20. Qc1 Nxe3 21. Qxe3 Bf8 22. c3 Be6 23. Rfd1 Rac8 24. Kf2 Qc4 25. Bf1 Qa4 26. h4 Bc5 27. h5 a6 28. hxg6 fxg6 29. Kg3 Kf7 30. Rd2 b5 31. Qd3 Qc4 32. Qb1 Qa4 33. b3 Qa3 34. Nc2 Qa5 35. b4 Qb6 36. bxc5 Qxc5 37. Rd3 d4 38. Nxd4 Bc4 39. Re3 b4 40. Bxc4+ Qxc4 41. Qh1 h5 42. Nxf5 1-0

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.07"]
[Round "3"]
[White "Groenendijk, Thijs"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1674"]
[BlackElo "2002"]
[PlyCount "96"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. e5 f6 4. f4 Nh6 5. Nf3 Bf5 6. Bd3 Be4 7. c3 e6 8. 0-0 Nf7 9. Qe2 f5 10. Nbd2 Be7 11. b4 h6 12. Nb3 Bxd3 13. Qxd3 b6 14. Bd2 g5 15. Qb5 Qd7 16. Qa6 Rg8 17. a4 Nfd8 18. Qd3 a5 19. b5 Na7 20. Rfb1 Nf7 21. Kh1 Nc8 22. c4 gxf4 23. Bxf4 Ng5 24. cxd5 Qxd5 25. Nbd2 Nxf3 26. Nxf3 Bg5 27. Qd2 Bxf4 28. Qxf4 Ne7 29. Rc1 0-0-0 30. Ra3 Qe4 31. Qxh6 Rg6 32. Qd2 Nd5 33. Qc2 Qg4 34. h3 Qg3 35. Rb3 Rdg8 36. Ne1 Qf4 37. Rf3 Qxd4 38. Rd3 Qxe5 39. Nf3 Qg7 40. Rd2 Nb4 41. Qc3 Rxg2 42. Qxg7 R2xg7 43. Ne5 Nd5 44. Nc4 Kb7 45. Re2 Rg3 46. Kh2 f4 47. Ne5 Rh8 48. Rg2 Rgxh3+ 0-1

[Event "Twente Young Master op-A"]
[Site "Twente"]
[Date "2007.08.06"]
[Round "2"]
[White "Van Herwaarden, Arjen"]
[Black "Van Zon, Stef"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "2002"]
[BlackElo "1697"]
[PlyCount "90"]
[EventDate "2007.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 Nf6 5. d3 e5 6. f4 Be7 7. Nf3 Qb6 8. Nd5 Nxd5 9. exd5 Nd4 10. fxe5 Nxf3+ 11. Qxf3 dxe5 12. 0-0 0-0 13. c4 f5 14. Rb1 Qg6 15. Qe3 Bd6 16. Qg5 Qxg5 17. Bxg5 h6 18. Bd2 g5 19. Bc3 Bd7 20. b4 b6 21. Rfe1 Rae8 22. bxc5 Bxc5+ 23. Kh1 Bd6 24. Bb4 Bxb4 25. Rxb4 f4 26. gxf4 exf4 27. Rxe8 Rxe8 28. Be4 g4 29. Kg2 Rf8 30. a4 h5 31. a5 h4 32. axb6 axb6 33. Rxb6 Ra8 34. Rb2 Ra5 35. d4 h3+ 36. Kf2 Ra3 37. c5 g3+ 38. Kg1 Re3 39. hxg3 fxg3 40. Rb1 Rxe4 41. c6 Bc8 42. Rd1 Re2 43. d6 h2+ 44. Kf1 Rf2+ 45. Ke1 h1Q# 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.08.02"]
[Round "9"]
[White "Van Herwaarden, Arjen"]
[Black "Etmans, Maarten D"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2133"]
[BlackElo "2207"]
[PlyCount "90"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Ng8 3. d4 d6 4. Nf3 Bg4 5. h3 Bxf3 6. Qxf3 c6 7. Qb3 Qb6 8. exd6 Qxb3 9. axb3 e6 10. Bf4 Kd7 11. c4 Bxd6 12. Bxd6 Kxd6 13. Nc3 Nf6 14. g4 h6 15. b4 Nbd7 16. Bg2 a6 17. f4 Kc7 18. Kf2 g5 19. fxg5 hxg5 20. Kg3 Rae8 21. Rhf1 Rh6 22. Ra5 Rg6 23. b5 axb5 24. cxb5 Rb8 25. Na4 Kd6 26. bxc6 bxc6 27. Ra6 Rc8 28. Nb6 Rc7 29. Nc4+ Ke7 30. Rxc6 Rxc6 31. Bxc6 Rg8 32. Ne5 Nb6 33. Ra1 Nc8 34. Ra8 Nd5 35. Rb8 Kf6 36. b4 Kg7 37. b5 f6 38. Rb7+ Nde7 39. Nd3 Rd8 40. Nc5 Rd6 41. Bd7 Kh6 42. Nxe6 Nb6 43. Nc5 Nc4 44. Be6 Ng6 45. Bxc4 Rxd4 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.08.01"]
[Round "8"]
[White "Narayanan, Srinath"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2218"]
[BlackElo "2133"]
[PlyCount "110"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bxh6 gxh6 7. Nc3 Bg7 8. e6 fxe6 9. Bc4 d5 10. Bb5 0-0 11. Bxc6 bxc6 12. 0-0 Qd6 13. Na4 e5 14. dxe5 Qg6 15. Qd3 Bxh3 16. Nh4 Qxd3 17. cxd3 Rf4 18. gxh3 Rxh4 19. f4 Rf8 20. Nc5 Rhxf4 21. Rxf4 Rxf4 22. Re1 Kf7 23. Kg2 e6 24. Kg3 Rf5 25. d4 Ke7 26. h4 h5 27. Re3 Bh6 28. Ra3 a5 29. Rb3 Rf4 30. Rb7 Rg4+ 31. Kf3 Rf4+ 32. Kg3 Rg4+ 33. Kf3 Rf4+ 34. Ke2 Rxh4 35. Rxc7+ Ke8 36. Rxc6 Bf8 37. Rxe6+ Be7 38. Rh6 Rxd4 39. Nd3 Re4+ 40. Kd1 Re3 41. Kc2 h4 42. Kc3 Re4 43. Rxh7 Rc4+ 44. Kd2 Re4 45. a3 Kd8 46. Kc2 Ke8 47. Kc3 Rc4+ 48. Kd2 Re4 49. Kc2 Rc4+ 50. Kd1 Re4 51. Kc2 Rc4+ 52. Kb3 Rd4 53. Kc3 Rc4+ 54. Kb3 Rd4 55. Kc3 Rc4+ 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.31"]
[Round "7"]
[White "Punt, Roland"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2144"]
[BlackElo "2133"]
[PlyCount "43"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c3 e5 2. c4 Nc6 3. Nc3 d6 4. g3 g5 5. e4 Bg7 6. d3 h6 7. Bg2 Nge7 8. h4 g4 9. h5 Be6 10. Nd5 Qd7 11. Ne2 f5 12. Be3 Nd8 13. Qd2 Ng8 14. Qa5 b6 15. Qa3 Bxd5 16. cxd5 Nf6 17. Rc1 0-0 18. Kd2 fxe4 19. dxe4 Nb7 20. Nc3 a5 21. Qa4 Qf7 22. Qd1 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.30"]
[Round "6"]
[White "Van Herwaarden, Arjen"]
[Black "Barendse, Ted"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2133"]
[BlackElo "2219"]
[PlyCount "86"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Qd4 Qe7 8. f3 c5 9. Qf2 0-0 10. Bd2 d5 11. a3 Bxc3 12. Bxc3 dxe4 13. 0-0-0 Be6 14. Qh4 Nd5 15. Qxe7 Nxe7 16. fxe4 f6 17. Ba5 c6 18. Ba6 Kf7 19. Bc7 c4 20. Kd2 f5 21. exf5 Bd5 22. Rhf1 Bxg2 23. Rf2 Bd5 24. Kc3 Ke8 25. Rdf1 Be4 26. Re1 Kd7 27. Rxe4 Nd5+ 28. Kd4 Nxc7 29. Bxc4 Rf6 30. Kc5 Raf8 31. Rd2+ Kc8 32. Be6+ Kb7 33. Rd7 Rxf5+ 34. Bxf5 Rxf5+ 35. Kc4 Kb6 36. Ree7 Rf4+ 37. Kb3 Rf3+ 38. Ka2 Nd5 39. Rb7+ Kc5 40. Rxg7 Rf2 41. Rxh7 Rxc2 42. Kb1 Rg2 43. Rxa7 Rxb2+ 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.28"]
[Round "5"]
[White "Van Herwaarden, Arjen"]
[Black "Ten Hertog, Hugo"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2133"]
[BlackElo "2084"]
[PlyCount "143"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 Rb8 10. Qd2 Nd4 11. Nd1 b5 12. c3 Nxf3+ 13. Bxf3 Bb7 14. d4 cxd4 15. cxd4 f5 16. Nf2 fxe4 17. Nxe4 Nd5 18. Bf2 Qd7 19. Rfe1 h6 20. Bg4 Kh7 21. Bxe6 Qd8 22. Nc3 Nxc3 23. Qxc3 Qf6 24. Bb3 Kh8 25. Qd3 Rbc8 26. Re6 Qf5 27. Qxf5 gxf5 28. Rxd6 Rfd8 29. Rxd8+ Rxd8 30. Rd1 Bd5 31. Bxd5 Rxd5 32. Kf1 Kg8 33. Ke2 Kf7 34. Kd3 Ke6 35. Rc1 Kd7 36. Rc3 Bf8 37. Ke2 b4 38. Rc2 Ra5 39. b3 Kd6 40. Kf3 h5 41. h3 Kd5 42. Re2 Kd6 43. Be1 Kd7 44. g4 hxg4+ 45. hxg4 fxg4+ 46. Kxg4 Ra6 47. Rh2 Be7 48. f5 Ke8 49. Bg3 Kf7 50. Be5 Ke8 51. Rh8+ Kf7 52. Rh7+ Ke8 53. f6 Bxf6 54. Rh6 Bxe5 55. Rxa6 Bxd4 56. Ra4 Bc5 57. Ra5 Bb6 58. Rb5 Kd7 59. Rxb4 Kc6 60. Kf5 Kc5 61. Ra4 Kd5 62. Rc4 Bc5 63. Kf6 Kd6 64. Kf7 Bb6 65. Rc1 Bc5 66. Rd1+ Kc6 67. Ke6 Ba3 68. Rd4 a5 69. Rc4+ Kb5 70. Kd5 Bb4 71. a4+ Kb6 72. Rxb4+ 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.27"]
[Round "4"]
[White "Stap, Kees"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2110"]
[BlackElo "2133"]
[PlyCount "28"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Bb7 10. d4 Re8 11. Ng5 Rf8 12. Nf3 Re8 13. Ng5 Rf8 14. Nf3 Re8 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.26"]
[Round "3"]
[White "Van Herwaarden, Arjen"]
[Black "Haast, Mark"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2133"]
[BlackElo "2028"]
[PlyCount "84"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[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 d6 9. 0-0 b6 10. d4 Ba6 11. Re1 Qc7 12. a4 Rad8 13. Nb5 Bxb5 14. axb5 Nxd4 15. Nxd4 cxd4 16. Bxd4 e5 17. Bc3 d5 18. Qf3 Qc5+ 19. Qf2 d4 20. Bd2 Qxb5 21. Rxa7 Nc6 22. Raa1 Nb4 23. Rec1 exf4 24. gxf4 d3 25. c3 Nc2 26. Rab1 Rfe8 27. Bf3 Bf8 28. Kh1 Bc5 29. Qg2 Ne3 30. Qg5 Nc4 31. Rd1 Qb3 32. f5 Qc2 33. b4 Be7 34. Qg2 Bf6 35. Rbc1 Nxd2 36. Rxc2 dxc2 37. Rg1 Nxf3 38. Qxf3 Rd2 39. fxg6 hxg6 40. Qxf6 Rd1 41. Rf1 Rxf1+ 42. Qxf1 Rd8 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.25"]
[Round "2"]
[White "Siebrecht, Sebastian"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2431"]
[BlackElo "2133"]
[PlyCount "69"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. h3 e5 7. d5 Na6 8. Bg5 Qe8 9. g4 Kh8 10. Be2 Ng8 11. Be3 f5 12. gxf5 gxf5 13. exf5 Bxf5 14. Nh4 Bd7 15. Qd2 Qe7 16. Nf3 Bf5 17. 0-0-0 Nb4 18. Rdg1 c6 19. a3 Na6 20. b4 Nc7 21. Rg5 cxd5 22. cxd5 Rac8 23. Kb2 b5 24. Rhg1 Rf7 25. Nh4 Bd7 26. Rh5 Rf6 27. Bd3 h6 28. Ne4 Be8 29. Nxf6 Bxf6 30. Nf5 Qd7 31. Bg5 Nxd5 32. Bxf6+ Ndxf6 33. Rxh6+ Nxh6 34. Qxh6+ Nh7 35. Rg7 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2007.07.24"]
[Round "1"]
[White "Van Herwaarden, Arjen"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "2133"]
[BlackElo "2370"]
[PlyCount "78"]
[EventDate "2007.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. cxd5 Nxd5 8. Qc2 0-0 9. Bd3 Nf6 10. 0-0 Nc6 11. Rd1 Be7 12. a3 Bd7 13. d5 exd5 14. Nxd5 h6 15. Bxh6 gxh6 16. Nxf6+ Bxf6 17. Bf5 Nb8 18. Bxd7 Nxd7 19. Qf5 Bxb2 20. Rab1 Qf6 21. Qg4+ Kh8 22. Rxd7 Bxa3 23. Rdxb7 Bc5 24. Qh5 Bd6 25. Rd1 a5 26. Rb5 Rfd8 27. Ng5 Bf4 28. Nh3 Rxd1+ 29. Qxd1 Rd8 30. Qb1 Bd2 31. Rf5 Bc1 32. g3 Qc6 33. f3 Be3+ 34. Kh1 Qa4 35. Qb2+ Kg8 36. Ng1 Qd1 37. Qg2 Qb1 38. Re5 Bxg1 39. Qxg1 Rd1 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.08.03"]
[Round "9"]
[White "Van Roosmalen, Sjoerd"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2266"]
[PlyCount "117"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nc6 7. Qd2 a6 8. Nge2 Rb8 9. d5 Ne5 10. Ng3 c6 11. Be2 b5 12. cxb5 axb5 13. dxc6 b4 14. c7 Qxc7 15. Nb5 Qa5 16. a4 Bd7 17. 0-0 Rfc8 18. b3 h5 19. Rfc1 Nc6 20. Bh6 Bh8 21. Bc4 Ne5 22. Bf1 h4 23. Nh1 h3 24. Rxc8+ Rxc8 25. Rc1 Rxc1 26. Qxc1 hxg2 27. Kxg2 Qa8 28. Ng3 d5 29. Nc7 Qb7 30. Ba6 Qb6 31. exd5 Nxd5 32. Nxd5 Qxa6 33. Nxe7+ Kh7 34. Bf8 Bg7 35. Bxg7 Kxg7 36. Qg5 f6 37. Nef5+ Kf7 38. Nh6+ Kg7 39. Nh5+ Kh7 40. Nxf6+ Kg7 41. Nh5+ Kh7 42. Nf6+ Kg7 43. Qxe5 Qxf6 44. Ng4 Qxe5 45. Nxe5 Be6 46. Nc6 Bxb3 47. a5 Bd5 48. Nxb4 Ba8 49. a6 Kf6 50. a7 Ke6 51. Kg3 Kd6 52. f4 Kc5 53. Nd3+ Kb6 54. Ne5 Kxa7 55. Nxg6 Be4 56. Ne7 Kb7 57. f5 Kc7 58. Kf4 Bc2 59. Ke5 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.08.02"]
[Round "8"]
[White "Van Herwaarden, Arjen"]
[Black "Van Opheusden, Bas"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "2155"]
[PlyCount "55"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 b6 7. Bd3 Bb7 8. 0-0 d6 9. Nbd2 Nd7 10. Ne4 dxe5 11. dxe5 Qc7 12. Re1 Nc5 13. Bb5+ Bc6 14. Nd4 Bxb5 15. Nxb5 Qd7 16. Nbd6+ Bxd6 17. Nxd6+ Kf8 18. Qf3 Nb7 19. Ne4 Rc8 20. b3 b5 21. Rd1 Qc6 22. Ba3+ b4 23. Rxd5 bxa3 24. Rd4 h6 25. Rad1 Kg8 26. Rd7 Kh7 27. Qxf7 Qxd7 28. Nf6# 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.08.01"]
[Round "7"]
[White "Van Geffen, Ben"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C61"]
[WhiteElo "2116"]
[PlyCount "126"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. 0-0 c6 6. Bc4 Nf6 7. d3 d6 8. b4 Be7 9. Nd2 d5 10. exd5 Nxd5 11. a3 0-0 12. Qf3 Be6 13. Re1 Qd7 14. h3 b6 15. Bb2 Nc7 16. Re2 c5 17. bxc5 bxc5 18. Rae1 Rab8 19. Bc1 Bd6 20. Qh5 g6 21. Qh6 Bxc4 22. Nxc4 Rfe8 23. Bf4 Bxf4 24. Qxf4 Rxe2 25. Rxe2 Rb1+ 26. Kh2 Nd5 27. Qe5 Nc3 28. Qe8+ Qxe8 29. Rxe8+ Kg7 30. Rc8 Rc1 31. Rxc5 Rxc2 32. Kg3 Ne2+ 33. Kf3 Ng1+ 34. Ke4 Rxf2 35. Kxd4 Rxg2 36. Rc7 Nxh3 37. Kc5 Nf4 38. Rd7 Rg5+ 39. Kc6 Rf5 40. d4 h5 41. Nd6 Rf6 42. Kb7 Kf8 43. Ne4 Rb6+ 44. Kxa7 Rb3 45. Ng5 Rxa3+ 46. Kb6 Ke8 47. Rd6 Ke7 48. Rc6 Rb3+ 49. Ka5 Rd3 50. Rc4 Ne6 51. Nxe6 Kxe6 52. Rc6+ Kd5 53. Rf6 Rxd4 54. Kb5 Ke5 55. Rxf7 Rf4 56. Rh7 Kf5 57. Kc5 Kg4 58. Kd5 g5 59. Ke5 h4 60. Ra7 Kg3 61. Ra1 Rf2 62. Ke4 h3 63. Ra3+ Kg2 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.31"]
[Round "6"]
[White "Van Herwaarden, Arjen"]
[Black "De Saegher, Chris"]
[Result "0-1"]
[ECO "B09"]
[BlackElo "2203"]
[PlyCount "106"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Qd4 dxc5 8. Qc4 0-0 9. e5 Ng4 10. h3 Nh6 11. Be3 Na6 12. Qb5 Qxb5 13. Bxb5 b6 14. Bc6 Rb8 15. a3 Bb7 16. Bxb7 Rxb7 17. 0-0-0 f6 18. exf6 exf6 19. Nd5 Nb8 20. g4 Kf7 21. Bd2 Rd8 22. Bc3 Rbd7 23. Ne3 Nc6 24. Rxd7+ Rxd7 25. Rd1 Rxd1+ 26. Kxd1 Ng8 27. Ke2 Nge7 28. Kd3 Ke6 29. b3 Nb8 30. Bb2 Nd7 31. c4 Bh6 32. Ng2 f5 33. g5 Bf8 34. Ne3 Nc6 35. Nd5 Bd6 36. Bc1 Na5 37. Kc2 b5 38. Kc3 a6 39. Bd2 Nb8 40. Be3 Nd7 41. Nh2 Ne5 42. Nb6 Nec6 43. Nd5 bxc4 44. bxc4 Nxc4 45. Nc7+ Bxc7 46. Kxc4 Bd6 47. Nf3 Na5+ 48. Kc3 Kd5 49. Nd2 Bf8 50. Bf2 Bg7+ 51. Kd3 c4+ 52. Kc2 Nc6 53. Bb6 Nd4+ 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.29"]
[Round "5"]
[White "Gouw, Carol Peter"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "2150"]
[PlyCount "140"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nge2 a6 6. Ng3 c6 7. a4 a5 8. Be2 0-0 9. 0-0 e5 10. d5 Na6 11. Bg5 Qc7 12. h3 h5 13. Qd2 Nh7 14. Bh6 h4 15. Bxg7 Kxg7 16. Nh1 Nc5 17. Ra3 Qe7 18. f3 Nf6 19. Qg5 Nxd5 20. Qxe7 Nxe7 21. Rd1 Rd8 22. Nf2 Be6 23. Kf1 Ra6 24. Nd3 Nxd3 25. Bxd3 Rb6 26. b3 d5 27. cxd5 cxd5 28. Bc4 d4 29. Bxe6 Rxe6 30. Ra2 Rc8 31. Nb5 Rc5 32. Ke2 Nc6 33. Nc7 Re7 34. Nd5 Re8 35. Rb2 Nb4 36. Nb6 Re7 37. Rdd2 f6 38. Kf2 Rc3 39. Ke2 Rc5 40. Kf2 Kf7 41. Nc4 Ke6 42. Rb1 Rec7 43. Na3 Rc1 44. Rxc1 Rxc1 45. Nc4 Nc6 46. Rb2 Kd7 47. Ke2 Kc7 48. f4 exf4 49. Kf3 Ne5+ 50. Nxe5 fxe5 51. Kg4 Rc3 52. Kg5 Rg3+ 53. Kf6 Kd6 54. b4 f3 55. gxf3 Rxf3+ 56. Kxg6 axb4 57. Rxb4 d3 58. Rxb7 d2 59. Rb8 Kc7 60. Rb1 Rxh3 61. Kf5 Rd3 62. Rd1 h3 63. Kxe5 h2 64. Ke6 h1Q 65. Rxh1 d1Q 66. Rxd1 Rxd1 67. e5 Ra1 68. Kf7 Rxa4 69. e6 Kd6 70. e7 Ra7 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.28"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Ten Hagen, Yorick"]
[Result "1/2-1/2"]
[ECO "B20"]
[BlackElo "2127"]
[PlyCount "35"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 c5 2. b3 d6 3. Bb2 Nf6 4. Nc3 e6 5. f4 a6 6. Nf3 Nc6 7. g3 d5 8. e5 Nd7 9. Bh3 Be7 10. 0-0 g6 11. Qe2 Nb6 12. Rae1 Qc7 13. a4 Bd7 14. Kh1 0-0-0 15. Na2 Kb8 16. Bg2 h5 17. h3 Rhg8 18. Ba3 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.27"]
[Round "3"]
[White "Van den Dikkenberg, Erik"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2144"]
[PlyCount "63"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. Nc3 e6 4. e5 Nge7 5. a3 b6 6. Bg5 Qd7 7. Nf3 Bb7 8. Bd3 h6 9. Bxe7 Bxe7 10. h4 Nb8 11. Ne2 Ba6 12. Bxa6 Nxa6 13. Qd3 Nb8 14. Nf4 c5 15. c3 c4 16. Qc2 Nc6 17. Ke2 h5 18. Rag1 0-0-0 19. g4 hxg4 20. Rxg4 g6 21. h5 Rdf8 22. Rgg1 gxh5 23. Rxh5 Rxh5 24. Nxh5 Rh8 25. Nf4 Qd8 26. Rg7 Qf8 27. Rh7 Kb7 28. Qb1 Qg8 29. Rh1 Rxh1 30. Qxh1 Qg4 31. Qh6 Qf5 32. Kf1 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.26"]
[Round "2"]
[White "Van Weersel, Arlette"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2155"]
[PlyCount "143"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 e5 3. Bc4 Nf6 4. d3 Be7 5. c3 d6 6. Nbd2 Na5 7. Bb3 Nxb3 8. axb3 0-0 9. h3 Re8 10. Nf1 d5 11. Qc2 b6 12. Ng3 Bf8 13. 0-0 g6 14. b4 Bb7 15. Bg5 Bg7 16. Rad1 Qd7 17. Rfe1 a5 18. bxa5 Rxa5 19. c4 d4 20. Ra1 Rxa1 21. Rxa1 Qc6 22. b4 Nd7 23. Ra7 b5 24. c5 Nb8 25. Ra5 Nd7 26. Qc1 Ra8 27. Rxa8+ Bxa8 28. Bh6 f6 29. Nh2 Bh8 30. Qa3 Bg7 31. Qa2+ Kf8 32. Qd2 Qe6 33. Ng4 Qf7 34. h4 Bb7 35. h5 Bc8 36. Bxg7+ Kxg7 37. Qh6+ Kg8 38. Qc1 Qg7 39. hxg6 hxg6 40. Qa3 Nf8 41. Nh2 c6 42. Ne2 g5 43. Nf1 Ne6 44. Nfg3 Nf4 45. Nxf4 gxf4 46. Qa8 Qg4 47. Nf1 Qd7 48. Nd2 Kf7 49. Nb3 Qe8 50. Na5 Bd7 51. Qa7 Qc8 52. Nb7 Kg6 53. Nd6 Qd8 54. Qb6 Qh8 55. Qc7 Qh7 56. Qd8 Kg5 57. Qf8 Be6 58. Qe8 Qd7 59. Qh8 Kg6 60. f3 Qh7 61. Qe8+ Bf7 62. Nxf7 Qxf7 63. Qxc6 Qa2 64. Qxb5 Qb1+ 65. Kh2 Qe1 66. Qe8+ Kg7 67. Qd7+ Kf8 68. Qg4 Qxb4 69. c6 Qe7 70. Qc8+ Kg7 71. c7 f5 72. Qd8 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2006.07.25"]
[Round "1"]
[White "Van Herwaarden, Arjen"]
[Black "Schuurman, Petra"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2219"]
[PlyCount "126"]
[EventDate "2006.07.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 c5 2. c3 g6 3. d4 cxd4 4. cxd4 d5 5. Nc3 dxe4 6. Bc4 Bg7 7. Qb3 e6 8. d5 Nf6 9. dxe6 fxe6 10. Bg5 0-0 11. Nge2 Nc6 12. Rd1 Qb6 13. Qxb6 axb6 14. 0-0 Ne5 15. Bb5 Nf7 16. Bxf6 Bxf6 17. Nxe4 Bxb2 18. a4 Kg7 19. Rd2 Ba3 20. N2c3 e5 21. Nd5 Bf5 22. Ng3 Rad8 23. Rfd1 Bc5 24. Nxf5+ gxf5 25. Nc7 Rxd2 26. Rxd2 Kf6 27. Rd7 Rd8 28. Nd5+ Kg6 29. Ne7+ Bxe7 30. Rxe7 Rd1+ 31. Bf1 e4 32. Rxb7 Ne5 33. Rxb6+ Kg5 34. Rb4 Nd3 35. Rd4 Ra1 36. h3 Nf4 37. Rd2 Rxa4 38. g3 Ng6 39. Be2 Ne5 40. Kg2 Kf6 41. Rd6+ Kf7 42. Rd2 Ra3 43. Kf1 Ke7 44. Kg2 h6 45. Kf1 Ra1+ 46. Rd1 Ra2 47. Ke1 Ra3 48. Kf1 Ke6 49. Rd2 Nd3 50. Bxd3 exd3 51. Ke1 Kd5 52. Rb2 Kc4 53. Kd2 Ra6 54. Rb8 Ra2+ 55. Ke3 Re2+ 56. Kf3 Re7 57. Rc8+ Kb3 58. Rd8 Kc2 59. Rc8+ Kd1 60. Ra8 d2 61. Ra1+ Kc2 62. Ra2+ Kc3 63. Ra3+ Kb2 0-1

[Event "NED-ch U17"]
[Site "Schagen"]
[Date "2006.05.03"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Snijders, Pieter Jan"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "49"]
[EventDate "2006.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 Qxc6 7. Bd3 Nf6 8. 0-0 0-0 9. e5 Ng4 10. b4 Be7 11. b5 Qc5 12. Bb2 f5 13. Qe2 Qb6 14. Nc3 c6 15. Rad1 Qc7 16. Rde1 a6 17. bxa6 bxa6 18. Bxf5 Rxf5 19. Qxg4 Rg5 20. Qc4+ Kh8 21. Ne4 Rf5 22. Nd6 a5 23. Nxf5 Ba6 24. Qf7 Bf8 25. e6 1-0

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "1"]
[White "Garcia Medinilla, Daniel"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "1871"]
[BlackElo "1942"]
[PlyCount "37"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nbd7 7. 0-0 e5 8. e4 a6 9. h3 b5 10. Qc2 c6 11. Rd1 Qe7 12. c5 dxc5 13. Nxe5 Nxe5 14. dxe5 Nd7 15. f4 c4 16. Be3 Nc5 17. b3 Be6 18. bxc4 bxc4 19. f5 1-0

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "1"]
[White "Guaimare Rodriguez, Carlos Luis"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "1800"]
[BlackElo "1942"]
[PlyCount "63"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 cxd5 13. Bxd5 Nd7 14. Rc1 h6 15. Be3 Nf6 16. Bb3 Nxe4 17. Rc7 Be6 18. Bxe6 Rxe6 19. Rxb7 Ra6 20. a3 Nd6 21. Rb4 Rc6 22. Ke2 a5 23. Rb3 Rc2+ 24. Kd1 Rac8 25. Re1 e4 26. Nd4 R2c4 27. Nb5 Nf5 28. Bd2 Rd8 29. Re2 a4 30. Rb4 Rxb4 31. axb4 Bxb2 32. Kc2 1-0

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "1"]
[White "Milde, Lars"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C61"]
[WhiteElo "1867"]
[BlackElo "1942"]
[PlyCount "75"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. 0-0 c6 6. Ba4 Nf6 7. Qe2 Be7 8. c3 d5 9. e5 Ne4 10. cxd4 Qb6 11. d3 Ng5 12. Be3 Ne6 13. Nc3 0-0 14. Qd2 Nxd4 15. Bc2 a5 16. f4 f6 17. e6 f5 18. Qf2 Bf6 19. Rac1 Qa7 20. Bd1 Re8 21. Kh1 Bxe6 22. Ne2 c5 23. Ba4 Re7 24. Nxd4 cxd4 25. Bd2 Qb6 26. Rc2 Rc8 27. Rfc1 Rec7 28. Rxc7 Rxc7 29. Qe1 Rxc1 30. Qxc1 h6 31. Be8 Kf8 32. Bh5 Be7 33. Qc2 Bd7 34. Bf3 Bc6 35. Be1 a4 36. Qe2 Qc7 37. Bf2 Bf6 38. Qe6 1/2-1/2

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "1"]
[White "Van Herwaarden, Arjen"]
[Black "Brulic, Denis"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1942"]
[BlackElo "1985"]
[PlyCount "33"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. d4 cxd4 6. cxd4 d6 7. Bc4 Nb6 8. Bb3 dxe5 9. d5 Nb4 10. Nc3 e6 11. Bg5 f6 12. Nxe5 fxg5 13. Qh5+ g6 14. Nxg6 hxg6 15. Qxh8 Nd3+ 16. Kf1 exd5 17. Qd4 1-0

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "1"]
[White "Van Herwaarden, Arjen"]
[Black "Fages, Jorge Juan"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1942"]
[BlackElo "1929"]
[PlyCount "100"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. d4 cxd4 6. cxd4 d6 7. Bc4 Nb6 8. Bb3 dxe5 9. d5 Na5 10. Nc3 Nxb3 11. Qxb3 e4 12. Ng5 h6 13. Ngxe4 e6 14. Bf4 exd5 15. Nb5 dxe4 16. Nc7+ Ke7 17. Rd1 Bd7 18. Be5 f5 19. Bd6+ Kf6 20. Bxf8 Qxc7 21. Rd6+ Qxd6 22. Bxd6 Rac8 23. 0-0 Rhe8 24. Qg3 Re6 25. h4 Kf7 26. Rd1 Rg6 27. Qe5 Bc6 28. Qxf5+ Rf6 29. Qh5+ Kg8 30. Bc5 Be8 31. Qe5 Bc6 32. Qd4 Rg6 33. Bxb6 axb6 34. Qxb6 e3 35. f3 Rf8 36. Rd8 e2 37. Rxf8+ Kxf8 38. Qe3 e1Q+ 39. Qxe1 Bxf3 40. g3 Kf7 41. Qe5 Re6 42. Qc7+ Kg6 43. a4 h5 44. Kf2 Bc6 45. a5 Rf6+ 46. Ke3 Rf7 47. Qb6 Rf6 48. b4 Bh1 49. Qc7 Re6+ 50. Kd2 Bc6 1/2-1/2

[Event "IECG CB.2006.0.00156 email"]
[Site "IECG email"]
[Date "2006.04.02"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Pott, Brian"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1942"]
[BlackElo "1868"]
[PlyCount "47"]
[EventDate "2006.04.02"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 11. Bxe6 Nxe6 12. cxd4 Ncxd4 13. a4 Bc5 14. Ne4 Bb6 15. Nfg5 Nxg5 16. Bxg5 Qd7 17. a5 Ba7 18. Bf6 Kf8 19. e6 fxe6 20. Bxd4 Qxd4 21. Qf3+ Ke7 22. Rac1 Qe5 23. Qg4 Rac8 24. Rfe1 1-0

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Kraft, Peter"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "1850"]
[BlackElo "1942"]
[PlyCount "93"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. Be3 Ng4 8. Bg5 f6 9. Bh4 g5 10. Bg3 Nh6 11. d5 f5 12. exf5 Nxf5 13. Ne4 g4 14. Nfd2 h5 15. h3 gxh3 16. Bxh5 hxg2 17. Rg1 Nxg3 18. Nxg3 Bh3 19. Bf3 Qh4 20. Bxg2 Bg4 21. Bf3 Qh2 22. Rh1 Bxf3 23. Qxf3 Rxf3 24. Rxh2 Rf4 25. Ke2 Nd7 26. Rg1 Nf6 27. Rhg2 Kf7 28. Nf5 Bh8 29. Ng7 Rc8 30. Ne6 Rh4 31. Rg7+ Bxg7 32. Rxg7+ Ke8 33. Nxc7+ Kf8 34. Ne6+ Ke8 35. c5 Rxc5 36. Nxc5 dxc5 37. Rxb7 Nxd5 38. Rxa7 Nf4+ 39. Kf3 Nd3 40. b3 Rf4+ 41. Ke2 Nxf2 42. Rc7 Ne4 43. Nxe4 Rxe4+ 44. Kf3 Re1 45. Rxc5 Kd7 46. a4 Rb1 47. Rb5 1-0

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Laine, Jari"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C61"]
[WhiteElo "1843"]
[BlackElo "1942"]
[PlyCount "46"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. 0-0 c6 6. Bc4 Nf6 7. Re1 d6 8. d3 Ng4 9. h3 Ne5 10. Bb3 Qh4 11. f4 Bg4 12. Qd2 Nf3+ 13. gxf3 Qg3+ 14. Kf1 Bxh3+ 15. Ke2 Qg2+ 16. Kd1 Qxf3+ 17. Re2 Bg4 18. Qe1 h5 19. Kd2 Qxf4+ 20. Kd1 Qh2 21. c3 h4 22. Kd2 Qxe2+ 23. Qxe2 Bxe2 0-1

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Murauskas, Regimantas"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "E99"]
[WhiteElo "1800"]
[BlackElo "1942"]
[PlyCount "62"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Nf6 12. f3 f4 13. c5 g5 14. Rc1 Ng6 15. Qc2 g4 16. cxd6 cxd6 17. Nb5 Qb6+ 18. Nf2 g3 19. Nc7 Rb8 20. a4 gxf2+ 21. Rxf2 Ne8 22. Ne6 Bxe6 23. dxe6 Ne7 24. a5 Qd8 25. Bc4 Rf6 26. Bb4 Kh8 27. Rd2 Nc6 28. Bc3 Rh6 29. b4 Qh4 30. h3 Rg6 31. Kh1 Nd8 0-1

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Kraft, Peter"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "1942"]
[BlackElo "1850"]
[PlyCount "95"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. cxd5 Nxd5 8. Qc2 Nc6 9. a3 Ba5 10. Bd3 Nxd4 11. Nxd4 Nxc3 12. bxc3 Qxd4 13. Bb5+ Kf8 14. 0-0 Qxc3 15. Qe2 a6 16. Bd3 Bd7 17. Bb2 Qc5 18. a4 Qg5 19. f4 Qc5+ 20. Kh1 Rd8 21. Qg4 f6 22. f5 h5 23. Qh4 Kg8 24. Bc4 Be8 25. fxe6 Rd2 26. Rxf6 Rxb2 27. Raf1 gxf6 28. e7+ Qxc4 29. Qxc4+ Kh7 30. Qd5 b6 31. h4 Rd2 32. Qe4+ Kg7 33. Rf3 Rd1+ 34. Kh2 Be1 35. Qe2 Rc1 36. Qe3 Rb1 37. Rf1 Bxa4 38. Rxe1 Rxe1 39. Qxe1 Kf7 40. Qd2 Be8 41. Qd5+ Kxe7 42. Qb7+ Bd7 43. Qxb6 Bb5 44. Qc7+ Ke6 45. Qb7 Bd7 46. Qxa6+ Kf7 47. Qa7 Ke7 48. Qc5+ 1/2-1/2

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Laine, Jari"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1942"]
[BlackElo "1843"]
[PlyCount "41"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. 0-0 Nxd4 9. Nbd2 Nc6 10. Nb3 Nge7 11. Be3 Qc7 12. Rc1 Ng6 13. Nc5 Bxc5 14. Bxc5 Ngxe5 15. Nxe5 Qxe5 16. f4 Qb8 17. f5 e5 18. Bc2 b6 19. Ba3 d4 20. Be4 Qc7 21. Qf3 1-0

[Event "IECG QB.2006.0.00074"]
[Site "IECG email"]
[Date "2006.02.12"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Murauskas, Regimantas"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1942"]
[BlackElo "1800"]
[PlyCount "39"]
[EventDate "2006.02.12"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 Ne5 8. Be2 Qg6 9. 0-0 d5 10. Bh5 Qb6 11. b4 Bd6 12. a4 c5 13. Nb5 Be6 14. Nxd6+ Qxd6 15. Bxc5 Qd8 16. f4 Nc4 17. f5 Bc8 18. Bxf7+ Kxf7 19. Qh5+ Kg8 20. f6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.13"]
[Round "9"]
[White "Hortensius, Nick"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1772"]
[BlackElo "1943"]
[PlyCount "102"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. a3 f6 7. b4 fxe5 8. b5 Nxd4 9. cxd4 exd4 10. Ne5 Nf6 11. Bg5 Bd6 12. Nxd7 Qxd7 13. Bxf6 gxf6 14. Nd2 c4 15. Nxc4 dxc4 16. Bxc4 Rc8 17. Qe2 Rc5 18. 0-0 e5 19. f4 Kd8 20. f5 Re8 21. a4 Qc7 22. Be6 Rc3 23. Qd2 Rc2 24. Qh6 Qe7 25. Rac1 Rxc1 26. Rxc1 Bc5 27. Kh1 Kc7 28. Rc4 b6 29. Qc1 Qd6 30. a5 Kb7 31. axb6 axb6 32. Ra4 Ra8 33. Rxa8 Kxa8 34. Qh6 Qe7 35. Qh4 Kb8 36. Qe4 Qd6 37. Qh4 d3 38. Qxh7 d2 39. Qg8+ Qf8 40. Qxf8+ Bxf8 41. Bb3 Kc7 42. Kg1 Kd6 43. Kf2 Kc5 44. g4 Bh6 45. h4 Kxb5 46. g5 fxg5 47. hxg5 Bxg5 48. Kf3 Kb4 49. Bd1 Kc3 50. Ke4 b5 51. Kxe5 b4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "7"]
[White "Ouwendijk, Vincent"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2055"]
[BlackElo "1943"]
[PlyCount "49"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qh5+ g6 9. Qd1 b6 10. Nf3 Ba6 11. Bxa6 Nxa6 12. Qe2 Nb8 13. 0-0 Nd7 14. a4 Rc8 15. a5 Ne7 16. axb6 axb6 17. Bg5 h6 18. Bf6 Rh7 19. Nh4 Nf8 20. Qb5+ Qc6 21. Rfb1 g5 22. Nf3 Nd7 23. Ra7 Qxb5 24. Rxb5 Nc6 25. Ra4 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "8"]
[White "Van Herwaarden, Arjen"]
[Black "De Groote, Ewoud"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "1943"]
[BlackElo "2088"]
[PlyCount "30"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. Bh6 0-0 9. h4 f6 10. Bxg7 Kxg7 11. h5 g5 12. h6+ Kh8 13. f4 gxf4 14. gxf4 Ng6 15. Nd5 f5 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.11"]
[Round "6"]
[White "Van Herwaarden, Arjen"]
[Black "Reitsma, Hylke"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1943"]
[BlackElo "1613"]
[PlyCount "127"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Bd6 6. Ne2 0-0 7. 0-0 Nbd7 8. c4 c6 9. Nbc3 e5 10. g3 exd4 11. Qxd4 Be5 12. Qd1 Re8 13. Qc2 Nf8 14. Be3 Qc7 15. Rad1 Bg4 16. Bxg4 Nxg4 17. Bc1 Rad8 18. Ne4 Ne6 19. Ng5 Nxg5 20. Bxg5 Bf6 21. Bxf6 Nxf6 22. Nd4 h6 23. c5 Qe5 24. Nf3 Qc7 25. Rfe1 Nd5 26. a3 Re7 27. Rxe7 Qxe7 28. Re1 Qf6 29. Qe2 a5 30. Kg2 Kh8 31. Qe5 Qxe5 32. Nxe5 Kg8 33. Nc4 a4 34. Kf3 Rb8 35. Re4 b5 36. Ne5 Rc8 37. Rd4 f6 38. Nxc6 Rxc6 39. Rxd5 Kf7 40. Ke4 Re6+ 41. Kd4 Ke7 42. Kc3 Re4 43. Rd4 Re2 44. c6 Re6 45. Rd7+ Ke8 46. Rxg7 Rxc6+ 47. Kb4 Rc2 48. Kxb5 Rxb2+ 49. Kxa4 Rxf2 50. h4 f5 51. Rb7 Rf3 52. Rb3 Rf1 53. Kb5 f4 54. gxf4 Rxf4 55. Rb4 Rf7 56. Ka6 Kd7 57. a4 Kc7 58. a5 h5 59. Rb5 Rf6+ 60. Ka7 Rh6 61. a6 Kc8 62. Rc5+ Kd8 63. Kb7 Rh7+ 64. Kb8 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Van Lanen, Tim"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1943"]
[BlackElo "2067"]
[PlyCount "142"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 Nf6 6. f4 d6 7. Nge2 0-0 8. h3 Ne8 9. Be3 f5 10. 0-0 Nc7 11. d4 fxe4 12. Nxe4 cxd4 13. Nxd4 Nxd4 14. Bxd4 e5 15. fxe5 Rxf1+ 16. Qxf1 Ne6 17. Nxd6 Nxd4 18. Bd5+ Ne6 19. Qf7+ Kh8 20. Bxe6 Bxe6 21. Qxe6 Qb6+ 22. Kf1 Rf8+ 23. Nf7+ Kg8 24. Qxb6 axb6 25. e6 Bxb2 26. Rd1 Kg7 27. Rd7 Kf6 28. e7 Re8 29. Nd6 Rxe7 30. Rxe7 Kxe7 31. Nc8+ Ke6 32. Nxb6 Be5 33. Kg2 Bd4 34. Nc4 Kd5 35. Nd2 Be3 36. Nf1 Bc1 37. Kf3 Kd4 38. Ke2 Kc3 39. Kd1 Bh6 40. Nh2 Kb2 41. Nf3 Kxa2 42. Ke2 Kb2 43. Kd3 Kc1 44. c4 Kd1 45. g4 Bc1 46. Nd4 Ke1 47. Ne6 Kf2 48. Nf8 Kg3 49. Nxh7 Kxh3 50. Nf6 Bg5 51. Ne4 Kxg4 52. Nc5 b6 53. Nd7 Bd8 54. Ke4 g5 55. Ne5+ Kg3 56. Kf5 Kf2 57. Ke4 Bc7 58. Ng4+ Kg3 59. Kf5 Bf4 60. Nf6 Kf3 61. Nd5 Bd2 62. Nf6 Bc1 63. Ng4 Bd2 64. Nf6 Bf4 65. Ng4 Kg3 66. Nf6 Bc1 67. Ng4 Kh4 68. Nf6 Bb2 69. Ng4 Bd4 70. Nh6 Kh5 71. Ng4 Bb2 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "5"]
[White "Van Vliembergen, Marina"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1564"]
[BlackElo "1943"]
[PlyCount "98"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Ne7 9. Bd2 0-0 10. Bd3 b6 11. h4 Ba6 12. h5 Bxd3 13. Qxd3 Nbc6 14. Ne2 Rac8 15. Nf4 Qd7 16. Rh3 Na5 17. Rg3 Nc4 18. Ra2 Kf7 19. Rg5 Qb5 20. Ra1 Qb2 21. Rc1 Qxa3 22. Qg3 Rg8 23. Qd3 cxd4 24. cxd4 Qxd3 25. Nxd3 Nxd2 26. Kxd2 Nc6 27. c3 Na5 28. Kc2 Nc4 29. Rg3 Rc7 30. Nb4 a5 31. Na2 Rgc8 32. Rd3 b5 33. Kb3 Nb6 34. Rcd1 Rb7 35. Rb1 Rc4 36. Kc2 Nd7 37. Kd2 Nb8 38. Ke3 Nc6 39. Rb2 b4 40. cxb4 Nxb4 41. Nxb4 Rbxb4 42. Rxb4 axb4 43. Rb3 Ke7 44. Rd3 Kd7 45. f4 Kc6 46. Rb3 Kb5 47. Rd3 Ka4 48. g4 g6 49. gxf5 gxf5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "2"]
[White "Van Herwaarden, Arjen"]
[Black "Hommes, Elmar"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1943"]
[BlackElo "1664"]
[PlyCount "39"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. d3 g6 6. h3 Bg7 7. Be3 Qb6 8. Rb1 0-0 9. Qd2 Rd8 10. Nge2 Bd7 11. g4 Qa5 12. f4 b5 13. a3 Rab8 14. 0-0 b4 15. axb4 Rxb4 16. Ra1 Qc7 17. g5 Nh5 18. Nd5 Qc8 19. Nxb4 Bxh3 20. Nxc6 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2005.08.08"]
[Round "1"]
[White "De Leeuw, Bart"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "1552"]
[BlackElo "1943"]
[PlyCount "76"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. cxd5 exd5 4. g3 Nf6 5. Bg2 g6 6. Nc3 Bg7 7. 0-0 0-0 8. d3 c6 9. Bg5 h6 10. Bf4 Be6 11. Qd2 Kh7 12. Rad1 Na6 13. Rfe1 Nh5 14. e4 d4 15. Ne2 Bxa2 16. Be5 c5 17. Bxg7 Nxg7 18. Ne5 Be6 19. Nf4 Qf6 20. Nxe6 Qxe6 21. f4 Nb4 22. Rc1 b6 23. Bf3 Nc6 24. Ng4 Qe7 25. f5 Qg5 26. Qxg5 hxg5 27. Nf6+ Kh6 28. Ng4+ Kh7 29. Nf6+ Kh8 30. fxg6 fxg6 31. e5 Rac8 32. Bxc6 Rxc6 33. Ra1 a5 34. Kg2 Nf5 35. Rh1 Re6 36. Rae1 Ne3+ 37. Kh3 Rxe5 38. g4 Rxf6 0-1

[Event "Dieren op reserve-A"]
[Site "Dieren"]
[Date "2005.07.29"]
[Round "4"]
[White "Van Herwaarden, Arjen"]
[Black "Brussen, Mark"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "124"]
[EventDate "2005.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 Rb8 8. Nf3 Nge7 9. Bh6 0-0 10. h4 f6 11. Bxg7 Kxg7 12. h5 g5 13. h6+ Kh8 14. Ng1 Ng6 15. f4 gxf4 16. gxf4 Nd4 17. Nce2 f5 18. c3 Nxe2 19. Nxe2 e5 20. 0-0-0 Qa5 21. a3 Be6 22. Rh5 b5 23. Bh3 b4 24. c4 Nxf4 25. Nxf4 exf4 26. Bxf5 Bxf5 27. Rxf5 Rxf5 28. exf5 Qd8 29. axb4 cxb4 30. Qxf4 Qf6 31. Re1 Rg8 32. Re2 b3 33. d4 Qf7 34. Re6 Qh5 35. d5 Rg1+ 36. Kd2 Qd1+ 37. Kc3 Qc2+ 38. Kb4 a5+ 39. Kb5 Qxb2 40. Qxd6 Qc3 41. Qe5+ Qxe5 42. Rxe5 b2 43. Re8+ Rg8 44. Re1 Rb8+ 45. Kxa5 b1Q 46. Rxb1 Rxb1 47. d6 Kg8 48. c5 Kf7 49. c6 Ke8 50. f6 Kd8 51. Ka6 Kc8 52. f7 Rf1 53. Kb6 Rxf7 54. d7+ Kd8 55. Kb7 Rf8 56. Kb8 Ke7+ 57. Kc7 Rd8 58. Kb6 Rf8 59. Kc7 Rg8 60. Kb7 Kd6 61. Kb6 Rb8+ 62. Ka7 Kc7 0-1

[Event "Dieren op reserve-A"]
[Site "Dieren"]
[Date "2005.07.28"]
[Round "3"]
[White "Broekhuis, Jan"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "130"]
[EventDate "2005.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 f6 7. exf6 Nxf6 8. 0-0 Bd6 9. Bg5 0-0 10. dxc5 Bxc5 11. c4 d4 12. Nbd2 e5 13. a3 Bf5 14. Nh4 Qd7 15. Bxf6 gxf6 16. b4 Bb6 17. c5 Bc7 18. Bc4+ Kh8 19. Qh5 Ne7 20. a4 Kg7 21. Ra3 Bg6 22. Qe2 Nd5 23. Bxd5 Qxd5 24. Rg3 e4 25. Rg4 f5 26. Rg5 Bf4 27. Qxe4 Qxe4 28. Nxe4 fxe4 29. Rg4 Rae8 30. g3 Bd2 31. b5 d3 32. c6 bxc6 33. bxc6 Ba5 34. Rg5 Bb6 35. a5 Bc7 36. Nxg6 hxg6 37. Rd5 Rd8 38. Rb5 Rb8 39. Rd5 Rfd8 40. Rg5 d2 41. Rd1 Rb2 42. Rc5 Ra2 43. Kf1 Rxa5 44. Rc4 Re5 45. Ke2 Kf6 46. Ra4 Bb6 47. Rxd2 Rxd2+ 48. Kxd2 Bxf2 49. Rc4 e3+ 50. Ke2 Re8 51. Ra4 Rc8 52. Rxa7 Rxc6 53. Ra2 Rc1 54. Kf3 Rd1 55. Ra6+ Kg5 56. Ra5+ Kh6 57. Re5 Rd6 58. Re8 Kg7 59. Re7+ Kf6 60. Rb7 Re6 61. Rb2 Be1 62. Re2 Bd2 63. Rg2 Ke5 64. Ke2 Ke4 65. h4 Rc6 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Bollen, Guus"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "D63"]
[PlyCount "86"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e3 b6 6. Nf3 Bb7 7. Be2 Nbd7 8. Rc1 0-0 9. cxd5 exd5 10. 0-0 a6 11. Ne5 Ne8 12. Bxe7 Qxe7 13. Bf3 Nxe5 14. dxe5 c6 15. Qd4 c5 16. Qf4 Nc7 17. e4 Ne6 18. Qg3 dxe4 19. Bxe4 Nd4 20. Rfe1 Rad8 21. Bxb7 Qxb7 22. Ne4 Kh8 23. f4 Qd5 24. b3 Nf5 25. Qh3 Qe6 26. g4 Nh6 27. Nf2 Rd2 28. Rcd1 Rfd8 29. Qf3 Qc8 30. a4 Ng8 31. Ne4 R8d3 32. Qxd3 Rxd3 33. Rxd3 Qxg4+ 34. Kh1 Qxf4 35. Nd6 g6 36. Nc8 Nh6 37. Kg1 Nf5 38. Nd6 Qg4+ 39. Kh1 Kg7 40. Ne8+ Kh6 41. Nf6 Qh4 42. Re4 Qg5 43. Rh3+ Kg7 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Bomans, Arno"]
[Black "Van Herwaarden, Arjen"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "73"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. Bc2 Nb4 9. 0-0 Nxc2 10. Qxc2 Rc8 11. Nc3 Ne7 12. Be3 Nf5 13. Rac1 Bb4 14. a3 Bxc3 15. bxc3 0-0 16. Nd2 Bb5 17. Rfe1 Qa6 18. Nb3 b6 19. Bg5 h6 20. g4 Nxd4 21. Nxd4 hxg5 22. Re3 Rc4 23. Rh3 g6 24. Qd2 f6 25. exf6 Rxf6 26. Qxg5 Kg7 27. Qh6+ Kf7 28. Qh8 Ke7 29. Re1 Be8 30. Rh7+ Bf7 31. g5 Rf4 32. Rxe6+ Kd7 33. Rxf7+ Rxf7 34. Qe8+ Kc7 35. Qxf7+ Kb8 36. Nc6+ Rxc6 37. Rxc6 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Haast, Koen"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "121"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. Bg5 Be7 4. Bxe7 Qxe7 5. c3 Nf6 6. Nbd2 b6 7. e3 0-0 8. Bd3 Bb7 9. Qc2 c5 10. 0-0 Nbd7 11. Ne5 g6 12. Nxd7 Nxd7 13. Nf3 e5 14. dxe5 Nxe5 15. Nxe5 Qxe5 16. Rae1 f5 17. b3 Rfe8 18. Re2 Rac8 19. c4 Kg7 20. Qb2 Qxb2 21. Rxb2 Rcd8 22. cxd5 Rxd5 23. Be2 Red8 24. Bf3 R5d7 25. Bxb7 Rxb7 26. g3 Rbd7 27. Rfb1 Kf6 28. Kf1 Ke5 29. Ke2 g5 30. f4+ Ke4 31. Rc1 g4 32. Rc4+ Kd5 33. Rd2+ Kc6 34. Rxd7 Rxd7 35. Rc1 a6 36. h3 h5 37. hxg4 hxg4 38. Rh1 Kb5 39. a3 c4 40. bxc4+ Kxc4 41. Rb1 b5 42. Rb4+ Kc5 43. Rb1 Rh7 44. Kd3 Rh2 45. Rc1+ Kd6 46. e4 Rg2 47. e5+ Kd5 48. Kc3 Rxg3+ 49. Kb4 Rf3 50. Rd1+ Ke6 51. Rd6+ Ke7 52. Rxa6 Rxf4+ 53. Kxb5 Re4 54. Kc5 Rxe5+ 55. Kd4 Re6 56. Ra7+ Kf6 57. Rh7 Kg5 58. a4 Re4+ 59. Kd3 Rxa4 60. Rg7+ Kf4 61. Ke2 0-1

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Schenkeveld, Daniel"]
[Black "Van Herwaarden, Arjen"]
[Result "1/2-1/2"]
[ECO "C13"]
[PlyCount "172"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 b6 8. Bd3 Bb7 9. 0-0 0-0 10. c3 Nd7 11. Qc2 h6 12. Rfe1 Qe7 13. Nxf6+ Qxf6 14. Be4 Bxe4 15. Rxe4 c5 16. Ne5 Nxe5 17. Rxe5 cxd4 18. cxd4 Rac8 19. Qd3 Rc7 20. Rae1 Rfc8 21. h3 Rc2 22. R5e2 Rxe2 23. Rxe2 Rc1+ 24. Kh2 Qf4+ 25. g3 Qc7 26. Qf3 Qc6 27. Qxc6 Rxc6 28. Kg2 Kf8 29. Kf3 a5 30. Ke4 Ke7 31. d5 Rd6 32. Rd2 g6 33. Rd4 f6 34. dxe6 Rxe6+ 35. Kd3 f5 36. Rd5 Rc6 37. Rd4 Rc1 38. Rd5 Rd1+ 39. Kc4 Rc1+ 40. Kb3 Rc6 41. Rd2 Ke6 42. f4 Rc5 43. Rd8 Rd5 44. Rb8 Rb5+ 45. Ka3 Rb4 46. b3 h5 47. h4 Rb5 48. Kb2 Kf7 49. a3 Kg7 50. Rc8 Rd5 51. Rc7+ Kh6 52. Kc2 Rd6 53. b4 axb4 54. axb4 Rd4 55. Kc3 Re4 56. Rb7 Re3+ 57. Kd4 Re4+ 58. Kc3 Re3+ 59. Kc4 Rxg3 60. Rxb6 Rg4 61. Rd6 Rxf4+ 62. Rd4 Rf1 63. b5 f4 64. Kd3 Rb1 65. Kc4 Rc1+ 66. Kd5 g5 67. Ke4 gxh4 68. Kxf4 Rf1+ 69. Ke3 Rf6 70. Rxh4 Kg5 71. Rb4 Rb6 72. Kf3 Kf5 73. Rf4+ Kg5 74. Rb4 Kf5 75. Ke3 Ke5 76. Rh4 Kd6 77. Rxh5 Rb8 78. Kd4 Kc7 79. Kc5 Rg8 80. b6+ Kb8 81. Kc6 Rc8+ 82. Kb5 Rg8 83. Ka6 Rf8 84. Rh7 Rg8 85. Rh6 Rf8 86. b7 Rg8 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "De Vries, Jan Pieter"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "97"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. b4 Bb6 7. a4 a6 8. Bg5 0-0 9. h3 Be6 10. Nbd2 Qe7 11. g4 Rad8 12. Qb3 Ba7 13. 0-0 h6 14. Be3 Bxe3 15. fxe3 d5 16. exd5 Nxd5 17. Rfe1 Rfe8 18. Rad1 Qd7 19. Kh2 b5 20. axb5 axb5 21. Bxd5 Bxd5 22. c4 Bxf3 23. Nxf3 Qd6 24. Kg2 Qxb4 25. Qxb4 Nxb4 26. cxb5 Nxd3 27. Rf1 e4 28. Nd4 Rd5 29. Ra1 Red8 30. Ra7 R8d7 31. h4 Ne5 32. Rf4 Nc4 33. Kf2 c5 34. Ra8+ Rd8 35. Rxd8+ Rxd8 36. Nc6 Rd2+ 37. Ke1 Rb2 38. Rxe4 Nd6 39. Re7 Rxb5 40. Ne5 Kf8 41. Rd7 c4 42. Nc6 Rb1+ 43. Ke2 Rb2+ 44. Kd1 Ne8 45. Ne5 Rf2 46. Nxc4 Nf6 47. Rd4 Rg2 48. Ne5 Ke7 49. Nf3 1/2-1/2

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Roorda, Thijs"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "63"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. c3 Nf6 6. Ne2 Be6 7. Bf4 c6 8. Nd2 Bg4 9. Bxd6 Qxd6 10. Qc2 Nbd7 11. 0-0 0-0-0 12. Ng3 h5 13. Rfe1 g6 14. h3 h4 15. Ngf1 Be6 16. Nf3 Qf4 17. Qd2 Nh5 18. Ng5 Qf6 19. Nxe6 fxe6 20. Nh2 Nf4 21. Ng4 Qg5 22. Re3 Nf6 23. Qd1 Rdf8 24. Re5 Nxh3+ 25. gxh3 Qf4 26. Nxf6 Rxf6 27. Qe2 Qf3 28. Qxf3 Rxf3 29. Re3 Rf6 30. Be2 Rhf8 31. Rf1 Kd7 32. Kg2 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Van Herwaarden, Arjen"]
[Black "Van Mierlo, Guido"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "91"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d4 Bg4 5. Be3 Qf6 6. d5 Bxf3 7. gxf3 Na5 8. Be2 c5 9. Qd2 Qd8 10. b4 cxb4 11. Qxb4 Be7 12. Na3 b6 13. Bb5+ Kf8 14. Rg1 a6 15. Bd3 b5 16. Qd2 h6 17. c3 Rc8 18. Rc1 Nf6 19. c4 bxc4 20. Bxc4 Nxc4 21. Rxc4 Rxc4 22. Nxc4 Qb8 23. Ke2 Qb5 24. Qc2 g5 25. Rb1 Qd7 26. Rb6 Qc8 27. Qb3 Nd7 28. Rb7 Kg7 29. Na5 Nc5 30. Bxc5 Qxc5 31. Nc6 Bf6 32. Ra7 Qb5+ 33. Qxb5 axb5 34. Rb7 Ra8 35. Ra7 Rxa7 36. Nxa7 Bd8 37. Nxb5 Bb6 38. Nxd6 Kf8 39. Nc4 Bc7 40. Kd3 Ke8 41. Ne3 h5 42. Kc4 Ba5 43. Kb5 Be1 44. Kc6 Bxf2 45. Nc4 f6 46. Kc7 1-0

[Event "Hengelo U14 op"]
[Site "Hengelo"]
[Date "2004.??.??"]
[Round "?"]
[White "Van de Haar, Rianne"]
[Black "Van Herwaarden, Arjen"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "40"]
[EventDate "2004.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. Bb5+ c6 5. Bd3 Bd6 6. 0-0 Ne7 7. Nc3 0-0 8. Re1 Ng6 9. Bxg6 fxg6 10. d4 Bg4 11. Re3 Bf4 12. Rd3 Bd6 13. h3 Bf5 14. Rd2 Nd7 15. Re2 Bxh3 16. gxh3 Rxf3 17. Re6 Rxh3 18. Rxd6 Qh4 19. Qd2 Rh1+ 20. Kg2 Qh3# 0-1

