[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.18"]
[Round "7.5"]
[White "Drent, Sjoerd"]
[Black "Jashari, Ardian"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2001"]
[BlackElo "2113"]
[PlyCount "58"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Dardania"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "KOS"]

1. e4 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 e6 5. Nf3 d5 6. e5 Ne4 7. Qe2 Nxc3 8. dxc3 dxc4 9. Qxc4 Qc7 10. Qe2 b6 11. Bg2 Bb7 12. 0-0 a5 13. Re1 Be7 14. Bg5 Ba6 15. Qe3 Rd8 16. Bf1 Bxf1 17. Kxf1 0-0 18. Bxe7 Nxe7 19. Qe4 h6 20. Rad1 Rd5 21. c4 Rdd8 22. h4 Rd7 23. Rxd7 Qxd7 24. g4 Rd8 25. Ke2 Nc6 26. b3 Nb4 27. Ra1 Nxa2 28. Rxa2 Qd1+ 29. Ke3 Qxb3+ 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.17"]
[Round "6.5"]
[White "Tzagarakis, Panagiotis"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "1724"]
[BlackElo "2001"]
[PlyCount "63"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Chania Kaissa"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 0-0 9. b3 e5 10. Nb5 Nc6 11. d5 Ne7 12. c5 dxc5 13. d6 Nc6 14. Bxc5 Bd7 15. a4 Rb8 16. Qd2 Nc8 17. Nc7 Nd4 18. Bc4 Qh4 19. Rc3 Rd8 20. Ne2 Bh6 21. Qd1 Bg7 22. 0-0 Bc6 23. f4 Nxe2+ 24. Qxe2 exf4 25. Bxf7+ Kh8 26. Rc4 Nxd6 27. Rcxf4 Qg5 28. Ne6 Qe5 29. Bd4 Nxf7 30. Bxe5 Bxe5 31. Nxd8 Rxd8 32. Rxf7 1-0

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.16"]
[Round "5.5"]
[White "Drent, Sjoerd"]
[Black "Vozinaki, Anthi Maria"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2001"]
[BlackElo "2022"]
[PlyCount "72"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Chania Chess Academy"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GRE"]

1. c4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nge7 5. Nf3 d5 6. cxd5 exd5 7. d4 cxd4 8. Nxd4 g6 9. Nxc6 bxc6 10. Qd4 Rg8 11. 0-0 Bg7 12. Qa4 Bd7 13. Bg5 f6 14. Bf4 Qb6 15. Qa3 f5 16. Bd6 Nc8 17. Bc5 Qb7 18. Rad1 Be6 19. f3 Rb8 20. Na4 Nb6 21. Qe3 Kf7 22. Nxb6 axb6 23. Bd4 Bxd4 24. Qxd4 c5 25. Qh4 Kg7 26. e4 d4 27. exf5 Bxf5 28. f4 Qd7 29. h3 h5 30. Rfe1 Rge8 31. Re5 d3 32. b3 Qd4+ 33. Kh2 Rxe5 34. fxe5 Qxh4 35. gxh4 Rd8 36. Rd2 b5 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.15"]
[Round "4.5"]
[White "Nikolic, Milos"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "C64"]
[WhiteElo "2279"]
[BlackElo "2001"]
[PlyCount "46"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Partizan"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "SRB"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Qf6 5. d3 Nge7 6. c3 h6 7. Be3 Bb6 8. d4 0-0 9. Re1 d6 10. h3 Ng6 11. Bf1 Nf4 12. Kh2 g5 13. d5 Ne7 14. Ng1 Qg7 15. a4 f5 16. a5 Bxe3 17. fxe3 Nfg6 18. exf5 Nxf5 19. e4 Nfe7 20. b4 Qf6 21. Ra2 g4 22. g3 h5 23. Rg2 Kg7 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.14"]
[Round "3.5"]
[White "Drent, Sjoerd"]
[Black "Noiroux, Kevin"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2001"]
[BlackElo "2118"]
[PlyCount "124"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Amaytos"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BEL"]

1. e4 c5 2. c4 e6 3. Nc3 Nc6 4. Nf3 a6 5. a3 Qc7 6. d4 cxd4 7. Nxd4 Nf6 8. Be2 Be7 9. Be3 d6 10. Rc1 Ne5 11. f4 Ng6 12. 0-0 0-0 13. Qd3 e5 14. Nd5 Nxd5 15. cxd5 Qd8 16. fxe5 Nxe5 17. Qd2 Bf6 18. Qb4 Re8 19. Nf5 Bxf5 20. Rxf5 b5 21. a4 a5 22. Qb3 bxa4 23. Qxa4 Rb8 24. Bb5 Re7 25. Bd2 Qb6+ 26. Kh1 h6 27. Bc6 Qxb2 28. Qxa5 Nd3 29. Rcf1 Bd4 30. Be1 Ra7 31. Qd2 Ra2 32. Qxb2 Rbxb2 33. Bg3 f6 34. Bxd6 Nf2+ 35. R5xf2 Rxf2 36. Rd1 Rad2 37. Rb1 Rb2 38. Rd1 Rbd2 39. Rb1 Bb2 40. Bg3 Rxg2 41. d6 Kf8 42. e5 Rxg3 43. hxg3 Bxe5 44. Rb8+ Kf7 45. Rb7+ Kg6 46. Be8+ Kh7 47. d7 Bxg3 48. Ra7 f5 49. Ra5 f4 50. Ra6 g5 51. Ra7 Kh8 52. Ra8 f3 53. Bh5+ Kg7 54. d8Q Rh2+ 55. Kg1 f2+ 56. Kf1 Rh1+ 57. Ke2 f1Q+ 58. Ke3 Bf4+ 59. Ke4 Qc4+ 60. Kf5 Qc2+ 61. Ke6 Qe4+ 62. Kd7 Qd5+ 0-1

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.13"]
[Round "2.5"]
[White "Sparwel, Oliver"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1940"]
[BlackElo "2001"]
[PlyCount "51"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "Echternach Sprenger"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "LUX"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nf3 f5 4. Nc3 c6 5. Bf4 Nf6 6. e3 Bd6 7. Bxd6 Qxd6 8. c5 Qe7 9. b4 0-0 10. Be2 Nbd7 11. Ne5 Nxe5 12. dxe5 Nd7 13. f4 b6 14. Qa4 bxc5 15. Qxc6 Rb8 16. bxc5 Nxc5 17. Rb1 Bd7 18. Qc7 Rxb1+ 19. Nxb1 Rc8 20. Qa5 Nd3+ 21. Kd2 Nf2 22. Rc1 Ne4+ 23. Kd1 Nf2+ 24. Kd2 Ne4+ 25. Kd1 Nf2+ 26. Kd2 1/2-1/2

[Event "EU-Cup 34th"]
[Site "Porto Carras"]
[Date "2018.10.12"]
[Round "1.5"]
[White "Drent, Sjoerd"]
[Black "Nordquelle, Daniel"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "2001"]
[BlackElo "2235"]
[PlyCount "65"]
[EventDate "2018.10.12"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "CBM 187"]
[Source "ChessBase"]
[SourceDate "2018.12.11"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.11"]
[SourceQuality "1"]
[WhiteTeam "En Passant"]
[BlackTeam "Nordstrand"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NOR"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 Nc6 5. a3 Ba5 6. Be3 Nge7 7. Qd3 0-0 8. 0-0-0 a6 9. g4 b5 10. Bg2 b4 11. Na4 bxa3 12. bxa3 Ng6 13. h4 Nxh4 14. exd5 exd5 15. Rxh4 Qxh4 16. Rh1 Qxh1+ 17. Bxh1 Ne7 18. Bg5 f6 19. Qe3 Kf7 20. Qf3 c6 21. Bd2 Bd8 22. Bb4 Re8 23. Nf4 g5 24. Nd3 Ng6 25. Qg3 Re4 26. Bxe4 dxe4 27. Ndc5 Nf4 28. Kd2 Bc7 29. Nxe4 Be6 30. Bd6 Ba5+ 31. c3 Rd8 32. Nac5 Bc4 33. Nb7 1-0

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.04.01"]
[Round "8.9"]
[White "De Jong, Jan Willem"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2454"]
[BlackElo "1984"]
[PlyCount "40"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 0-0 6. 0-0 d6 7. a4 a6 8. h3 Be6 9. Bxe6 fxe6 10. Re1 Qe7 11. b4 Ba7 12. Nbd2 Nh5 13. Nf1 Nf4 14. Be3 Qf6 15. Kh2 h6 16. Ra2 Kh7 17. b5 axb5 18. axb5 Bxe3 19. Rxa8 Rxa8 20. fxe3 Nb8 1-0

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.02.04"]
[Round "6.9"]
[White "Van Delft, Merijn"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "B05"]
[WhiteElo "2384"]
[BlackElo "1984"]
[PlyCount "69"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Nc6 7. c4 Nde7 8. exd6 Qxd6 9. Nc3 Ng6 10. d5 exd5 11. cxd5 Bxf3 12. Bxf3 Nce5 13. Be2 0-0-0 14. Be3 a6 15. b4 Qxb4 16. Qc2 Nc4 17. Bg5 Na3 18. Qf5+ Kb8 19. Bxd8 Bd6 20. Bxc7+ Bxc7 21. d6 Qxd6 22. g3 Qe5 23. Qxe5 Bxe5 24. Rac1 Re8 25. Bd3 Rd8 26. Rfd1 Bxc3 27. Rxc3 Nb5 28. Rcc1 Nd4 29. Bxg6 hxg6 30. Kg2 b5 31. Rd3 Ne6 32. Rxd8+ Nxd8 33. Kf3 Ne6 34. Ke4 Kb7 35. Kd5 1-0

[Event "Bussum op 30th"]
[Site "Bussum"]
[Date "2013.05.19"]
[Round "4"]
[White "Roorda, Thijs"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2079"]
[BlackElo "2037"]
[PlyCount "113"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 f5 4. e3 Nf6 5. b3 c6 6. Bd3 a5 7. Nbd2 Bd6 8. Bb2 0-0 9. h3 Ne4 10. Ne5 Bb4 11. Bxe4 fxe4 12. Qe2 a4 13. 0-0 a3 14. Bc1 c5 15. Nb1 Nc6 16. Nxc6 bxc6 17. Bd2 Ba6 18. Qg4 Qf6 19. dxc5 Bxc5 20. Bc3 d4 21. exd4 Bxd4 22. Bxd4 Qxd4 23. Qxe6+ Kh8 24. Nxa3 Qb2 25. Qxe4 Qxa3 26. Qxc6 Rac8 27. Qb6 Rf6 28. Qd4 Rd6 29. Qa7 Rd2 30. b4 Qa4 31. b5 Bxb5 32. Qe3 Rb2 33. cxb5 Rxb5 34. Rac1 Rf8 35. Qe6 Qa8 36. Rc6 Rg5 37. Rfc1 Rg6 38. Qe7 Rxc6 39. Rxc6 Re8 40. Qd7 Rd8 41. Qc7 h6 42. Rg6 Rg8 43. Qc6 Qf8 44. a4 Qf5 45. Rg3 Rc8 46. Qg6 Qe5 47. a5 Rc1+ 48. Kh2 Qa1 49. Qe8+ Kh7 50. Qe4+ Kh8 51. Qa8+ Kh7 52. Re3 Rc4 53. Qd5 Qa4 54. Re7 Rf4 55. Qd3+ Kg8 56. Qg6 Qd4 57. Re8+ 1-0

[Event "Bussum op 28th"]
[Site "Bussum"]
[Date "2011.06.13"]
[Round "6"]
[White "Drent, Sjoerd"]
[Black "Straat, Evert Jan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2010"]
[BlackElo "2103"]
[PlyCount "66"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Ne7 5. exd5 exd5 6. Qf3 Nbc6 7. Bb5 0-0 8. Nge2 Bf5 9. 0-0-0 Qd7 10. h3 a6 11. Bd3 Bxd3 12. Qxd3 b5 13. Rhe1 Na5 14. Nf4 Nc4 15. g4 c6 16. Re2 Ng6 17. Nh5 Rfe8 18. Rde1 Rxe2 19. Rxe2 Qd6 20. Nb1 Nxd2 21. Nxd2 Nf4 22. Nxf4 Qxf4 23. c3 Bd6 24. Qf3 Kf8 25. Kc2 Re8 26. Rxe8+ Kxe8 27. Qxf4 Bxf4 28. Nb3 Bd6 29. Kd3 Kd7 30. Ke3 Kc7 31. f4 Kb6 32. Nd2 a5 33. Nf3 f6 1/2-1/2

[Event "Bussum op 28th"]
[Site "Bussum"]
[Date "2011.06.12"]
[Round "5"]
[White "Hazenberg, Frans"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "1957"]
[BlackElo "2010"]
[PlyCount "56"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 Ne4 6. 0-0 d5 7. Bb5 Bd7 8. Bxc6 bxc6 9. Nxd4 Be7 10. f3 Nc5 11. Be3 0-0 12. Nd2 f6 13. exf6 Bxf6 14. Nxc6 Bxc6 15. Bxc5 Bxb2 16. Rb1 Qf6 17. Bxf8 Rxf8 18. f4 Bb5 19. Re1 c6 20. c4 dxc4 21. Kh1 c3 22. Ne4 Qxf4 23. Nd6 Ba4 24. Qe2 Kh8 25. Qe6 h6 26. Qc4 Bb5 27. Qxf4 Rxf4 28. g3 Ra4 0-1

[Event "Bussum op 28th"]
[Site "Bussum"]
[Date "2011.06.11"]
[Round "2"]
[White "Drent, Sjoerd"]
[Black "Galje, Hans"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2010"]
[BlackElo "2143"]
[PlyCount "72"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Bb5 Bb4 5. Bd2 Nge7 6. exd5 exd5 7. Qf3 0-0 8. Nge2 Bf5 9. 0-0-0 Qd7 10. h3 a6 11. Bd3 Rad8 12. g4 Bxd3 13. Qxd3 Na5 14. a3 Bxc3 15. Qxc3 Nc4 16. Nf4 Ng6 17. Nd3 Rfe8 18. Rde1 b6 19. f4 Nd6 20. f5 Ne4 21. Qb3 Nxd2 22. Kxd2 Nf8 23. Ne5 Qd6 24. Qf3 c5 25. c3 cxd4 26. cxd4 Nd7 27. Nxd7 Qxd7 28. f6 Qb5 29. Qc3 gxf6 30. Qb4 Qxb4+ 31. axb4 Re6 32. Rxe6 fxe6 33. Ra1 e5 34. Rxa6 Rd6 35. Ra7 h6 36. b5 e4 1/2-1/2

[Event "Bussum op 28th"]
[Site "Bussum"]
[Date "2011.06.11"]
[Round "3"]
[White "Drent, Sjoerd"]
[Black "Mellema, Andries"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2010"]
[BlackElo "2138"]
[PlyCount "34"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Ne7 5. Qg4 0-0 6. e5 f5 7. exf6 Rxf6 8. Bg5 Rf7 9. Qh5 c5 10. a3 Qa5 11. Bd2 cxd4 12. Nb1 Nbc6 13. Bd3 g6 14. Qh4 e5 15. f3 Bf5 16. Ne2 Bxd3 17. cxd3 Nf5 0-1

[Event "Bussum op 28th"]
[Site "Bussum"]
[Date "2011.06.10"]
[Round "1"]
[White "Ootes, Lennart"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "2194"]
[BlackElo "2010"]
[PlyCount "74"]
[EventDate "2011.06.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. d3 h6 6. h3 a6 7. Ba4 Qe7 8. Be3 Bc5 9. Qd2 b5 10. Bb3 Nd4 11. Ne2 Nxe2 12. Qxe2 Bxe3 13. Qxe3 c5 14. Bd5 Nxd5 15. exd5 d6 16. 0-0 Bb7 17. c4 0-0 18. Nd2 Rae8 19. Rae1 f5 20. f4 Qf6 21. b3 Kh7 22. Kh1 g5 23. fxe5 Rxe5 24. Qg3 Rfe8 25. Nf3 Re3 26. Rxe3 Rxe3 27. Re1 Rxe1+ 28. Qxe1 g4 29. hxg4 fxg4 30. Qe4+ Qg6 31. Qe7+ Qg7 32. Qe4+ Kh8 33. Nh4 g3 34. Ng6+ Kh7 35. Ne7+ Kh8 36. Ng6+ Kh7 37. Ne7+ Kh8 1/2-1/2

[Event "Vlissingen HZ op 14th"]
[Site "Vlissingen"]
[Date "2010.08.14"]
[Round "9"]
[White "Provoost, Simon"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "2255"]
[BlackElo "2011"]
[PlyCount "35"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 c6 4. Nf3 d5 5. Nxe5 Bd6 6. d4 Nxe4 7. Nxe4 dxe4 8. Nc4 Bc7 9. Bg2 0-0 10. 0-0 Re8 11. Re1 Be6 12. Ne3 f5 13. Nf1 Nd7 14. b3 Nf6 15. Bb2 Qd7 16. Qd2 Rad8 17. Rad1 Qf7 18. Qb4 1/2-1/2

[Event "Vlissingen HZ op 14th"]
[Site "Vlissingen"]
[Date "2010.08.13"]
[Round "8"]
[White "Drent, Sjoerd"]
[Black "Duessel, Udo"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2011"]
[BlackElo "2271"]
[PlyCount "105"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 b5 6. Bb3 Nxe4 7. Nxe5 Nxe5 8. dxe5 Bb7 9. 0-0 Qh4 10. Be3 d5 11. f3 Nc5 12. c3 Be7 13. Bc2 0-0 14. b4 Ne6 15. f4 a5 16. f5 Ng5 17. Rf4 Qh6 18. h4 d4 19. cxd4 Nh3+ 20. gxh3 Bxh4 21. Re4 Bg5 22. Bxg5 Qxg5+ 23. Kf2 Qxf5+ 24. Qf3 Qxf3+ 25. Kxf3 f5 26. exf6 Rxf6+ 27. Ke2 Bxe4 28. Bxe4 Rd8 29. d5 Rh6 30. bxa5 Rxh3 31. Nd2 Ra3 32. Nb3 Ra4 33. Ke3 Re8 34. Nc5 Rxa5 35. Ne6 Ra3+ 36. Kd4 c6 37. Rg1 Ra4+ 38. Ke5 Rxe4+ 39. Kxe4 cxd5+ 40. Kxd5 g6 41. Rg2 b4 42. Nf4 Kf7 43. Nd3 Rb8 44. Ne5+ Kg7 45. Kc4 Rb7 46. Nd3 Kf6 47. Nxb4 Ra7 48. Nd5+ Kf5 49. Kb4 Ke4 50. Nf6+ Kf3 51. Rg5 Kf4 52. Nxh7 Rxa2 53. Rxg6 1/2-1/2

[Event "Vlissingen HZ op 14th"]
[Site "Vlissingen"]
[Date "2010.08.08"]
[Round "2"]
[White "Wahedi, Ahmad Siar"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2295"]
[BlackElo "2011"]
[PlyCount "91"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Be3 Na5 11. Bc2 Nc4 12. Bc1 exd4 13. cxd4 c5 14. b3 Nb6 15. Nbd2 cxd4 16. Bb2 Nfd7 17. h3 Bh5 18. g4 Bg6 19. Nxd4 Bg5 20. Nf1 Rc8 21. Ne3 d5 22. Ndf5 Bf6 23. Bxf6 Nxf6 24. e5 Ne4 25. f3 Nc3 26. Qd4 Qc7 27. Bd3 Qc5 28. Qxc5 Rxc5 29. Bf1 d4 30. Nxd4 Rxe5 31. a3 Rfe8 32. Ng2 Rxe1 33. Nxe1 Nbd5 34. Ng2 f6 35. Nh4 Bb1 36. Kf2 Nd1+ 37. Kg1 N5c3 38. a4 bxa4 39. bxa4 Re1 40. Ng2 Re5 41. Bxa6 Nb2 42. a5 Rd5 43. Ne2 Rd1+ 44. Kh2 Nd5 45. Bb7 Nc7 46. Nc3 1-0

[Event "Vlissingen HZ op 13th"]
[Site "Vlissingen"]
[Date "2009.08.02"]
[Round "2"]
[White "Drent, Sjoerd"]
[Black "Roeder, Mathias"]
[Result "0-1"]
[ECO "A19"]
[WhiteElo "2089"]
[BlackElo "2438"]
[PlyCount "50"]
[EventDate "2009.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 e6 4. g3 Nf6 5. Bg2 d5 6. exd5 exd5 7. Nxd5 Nxd5 8. cxd5 Nb4 9. Ne2 Bf5 10. d3 Nxd3+ 11. Kf1 Bd6 12. Nf4 Bxf4 13. Bxf4 0-0 14. Qd2 Qf6 15. Bg5 Qe5 16. h4 Rfe8 17. Be3 Be4 18. h5 Bxg2+ 19. Kxg2 Qe4+ 20. Kg1 Ne5 21. Qc3 Rad8 22. Rd1 b6 23. h6 Rxd5 24. Rxd5 Qxd5 25. Rh4 Nf3+ 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.11"]
[Round "9"]
[White "Kerkvliet, Maximiliaan"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "D40"]
[BlackElo "2092"]
[PlyCount "51"]
[EventDate "2007.08.04"]
[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. d4 e6 2. c4 d5 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 6. Bd3 a6 7. cxd5 exd5 8. a3 Bg4 9. Be2 Rc8 10. 0-0 Be7 11. dxc5 Bxc5 12. b4 Bd6 13. Bb2 b5 14. Rc1 0-0 15. Nd4 Bxe2 16. Ncxe2 Ne5 17. Nf5 Rxc1 18. Qxc1 Nc4 19. Nxd6 Qxd6 20. Bd4 Nd7 21. Rd1 Rc8 22. Nf4 Qc6 23. Qa1 f6 24. Rc1 Kf7 25. Qb1 g6 26. Nd3 1/2-1/2

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.10"]
[Round "8"]
[White "Drent, Sjoerd"]
[Black "Onrust, Benny"]
[Result "1/2-1/2"]
[ECO "B03"]
[WhiteElo "2092"]
[PlyCount "60"]
[EventDate "2007.08.04"]
[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 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Nc6 7. Be3 Bf5 8. Nf3 Be7 9. Be2 0-0 10. 0-0 Bg6 11. b3 f5 12. d5 Ne5 13. Nd4 Bf7 14. f4 Ned7 15. Qc2 g6 16. Bf3 Bf6 17. Ne6 Bxe6 18. dxe6 Nc5 19. Bxc5 dxc5 20. Rad1 Bd4+ 21. Kh1 c6 22. g4 Qf6 23. Ne2 Qxe6 24. gxf5 Qxf5 25. Nxd4 cxd4 26. Qxf5 Rxf5 27. Rxd4 Raf8 28. Bg4 R5f6 29. Kg2 Kg7 30. Kg3 Re8 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.27"]
[Round "7.10"]
[White "Drent, Sjoerd"]
[Black "Dignum, Erik"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2083"]
[BlackElo "2103"]
[PlyCount "68"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. Nc3 Bg7 5. d3 e5 6. e4 d6 7. Nge2 c6 8. 0-0 0-0 9. h3 Be6 10. exf5 gxf5 11. f4 Nbd7 12. Be3 Qc7 13. Qd2 Rad8 14. b3 Kh8 15. Kh2 Rfe8 16. Rae1 Nf8 17. d4 e4 18. d5 Bc8 19. Nd4 c5 20. Ndb5 Qb8 21. a4 a6 22. Na3 Qc7 23. Rb1 b6 24. b4 N8d7 25. bxc5 Nxc5 26. Rfc1 Bd7 27. Bf1 Rb8 28. Qf2 Rg8 29. Be2 Be8 30. a5 bxa5 31. Rxb8 Qxb8 32. Bxc5 dxc5 33. Qxc5 Qb2 34. Rc2 Qb4 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.27"]
[Round "6.6"]
[White "Jonkman, Harmen"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "C31"]
[WhiteElo "2410"]
[BlackElo "2083"]
[PlyCount "41"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 c6 4. Nc3 cxd5 5. fxe5 d4 6. Ne4 Nc6 7. Nf3 Bg4 8. Bc4 Bxf3 9. Qxf3 Nxe5 10. Bb5+ Ke7 11. Qa3+ Ke6 12. Qh3+ f5 13. 0-0 g6 14. d3 Nf6 15. Ng5+ Kd5 16. Bf4 Nfg4 17. Rae1 Qf6 18. Qg3 Bh6 19. Bxe5 Nxe5 20. Rxe5+ Qxe5 21. Bc4+ 1-0

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.26"]
[Round "5.5"]
[White "Drent, Sjoerd"]
[Black "Van Dongen, Cor"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2083"]
[BlackElo "2116"]
[PlyCount "96"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. f4 e6 9. Nf3 Bd6 10. Bd3 Bxd3 11. Qxd3 Ne7 12. Bd2 Qc7 13. Ne5 c5 14. Ne4 cxd4 15. Nc4 Nf5 16. g4 b5 17. Na5 Ne7 18. Qxd4 Bxf4 19. Bxf4 Qxa5+ 20. Bd2 Qa4 21. Nd6+ Kf8 22. Qxa4 bxa4 23. 0-0 f6 24. Rae1 Nbc6 25. Bc3 Nd5 26. Rxe6 Nxc3 27. bxc3 Rb8 28. Nc4 Nd8 29. Ra6 Kg8 30. Rxa7 Rc8 31. Rxa4 Kh7 32. Re1 Nc6 33. Nd6 Rb8 34. Nf5 Rb7 35. Kg2 Ne5 36. Kg3 Rc8 37. Re3 Rbc7 38. Kf4 Rxc3 39. Rxc3 Rxc3 40. Ne3 Kg8 41. Ra8+ Kf7 42. Ra7+ Ke6 43. Re7+ Kd6 44. Rxg7 Ra3 45. Nf5+ Kd5 46. Ne3+ Kd4 47. Nf5+ Kd5 48. Ne3+ Kd4 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.26"]
[Round "4.11"]
[White "Van Hengel, Hugo G"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "2068"]
[BlackElo "2083"]
[PlyCount "64"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Qd2 Bb4 11. a3 Be7 12. Be2 Na5 13. Qc2 Bxf3 14. gxf3 Bh4+ 15. Kf1 0-0 16. Ne4 Nc6 17. Rd1 Ne7 18. Ng3 Ng6 19. f4 f5 20. Bf3 c6 21. Ne2 Rf7 22. b3 Be7 23. Rg1 Bxa3 24. d5 cxd5 25. Nd4 Nf8 26. c5 Nbd7 27. Nxe6 Nxe6 28. Bxd5 Qe7 29. Qc4 Re8 30. b4 a5 31. Bxb7 Nxe5 32. fxe5 Qxb7 0-1

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.25"]
[Round "2.12"]
[White "Drent, Sjoerd"]
[Black "Engelen, Johan HHM"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2083"]
[BlackElo "1911"]
[PlyCount "52"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. 0-0 cxd4 8. cxd4 Nxd4 9. Nxd4 Qxd4 10. Nc3 a6 11. Qe2 Ne7 12. Kh1 Nc6 13. f4 Bc5 14. Rd1 Qf2 15. Qg4 g6 16. Rf1 Qd4 17. Qh3 Nb4 18. Bb1 Qc4 19. Rd1 Bd4 20. Bd2 Bxc3 21. Bxc3 Qxf4 22. Bxg6 fxg6 23. Rd4 Qf2 24. Rxb4 0-0 25. Bd4 Qd2 26. Bc3 Qf2 1/2-1/2

[Event "Soest op"]
[Site "Soest"]
[Date "2001.05.25"]
[Round "1.16"]
[White "Ooms, Frans"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "1721"]
[BlackElo "2083"]
[PlyCount "80"]
[EventDate "2001.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. c4 Nb6 6. Nc3 Bg7 7. exd6 cxd6 8. Be2 0-0 9. 0-0 Nc6 10. Be3 Bg4 11. b3 d5 12. c5 Nc8 13. Qd2 e6 14. h3 Bxf3 15. Bxf3 N8e7 16. Rad1 Nf5 17. Ne2 Nh4 18. Bg4 h5 19. Bg5 Bf6 20. Bxh4 Bxh4 21. Bf3 Bg5 22. Qc3 a5 23. a3 Qf6 24. b4 axb4 25. axb4 Ra4 26. b5 Rc4 27. Qd3 Nb4 28. Qb3 Nc2 29. Qd3 Ra8 30. h4 Bh6 31. Qb3 Qxh4 32. Qb2 Raa4 33. Ra1 Rab4 34. Ra8+ Kh7 35. Qa2 Rxb5 36. Rb8 Nxd4 37. Nxd4 Qxd4 38. Qa8 Ra4 39. c6 Rxa8 40. c7 Rc5 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.27"]
[Round "9"]
[White "Drent, Sjoerd"]
[Black "Hamelink, Desiree"]
[Result "0-1"]
[ECO "B53"]
[BlackElo "2176"]
[PlyCount "60"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 h6 8. Be3 Nf6 9. h3 g6 10. 0-0-0 Bg7 11. Qd3 0-0 12. Nd4 Rc8 13. f4 Qa5 14. Nb3 Qc7 15. Rhe1 b5 16. Rd2 b4 17. Nd5 Nxd5 18. exd5 Bd7 19. g4 a5 20. Nd4 a4 21. Kb1 Qa5 22. Qe4 Qc7 23. f5 a3 24. fxg6 axb2 25. gxf7+ Rxf7 26. Ne6 Bxe6 27. dxe6 Rff8 28. Bd4 b3 29. axb3 Qa5 30. Kxb2 Qxd2 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.26"]
[Round "8"]
[White "Lahaye, Rick"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2220"]
[PlyCount "55"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 c5 4. Nf3 Nc6 5. 0-0 Nf6 6. b3 Be7 7. Bb2 0-0 8. cxd5 exd5 9. d4 Ne4 10. dxc5 Bxc5 11. Nc3 Nxc3 12. Bxc3 d4 13. Bb2 Re8 14. Rc1 Bb6 15. Rc2 Bf5 16. Rd2 Ba5 17. Nxd4 Bxd2 18. Nxf5 f6 19. e3 g6 20. Nd4 Nxd4 21. Bxd4 Ba5 22. Qf3 Rc8 23. Bxf6 Qc7 24. Qd1 Kf7 25. Qd4 Bc3 26. Bd5+ Kf8 27. Qh4 h5 28. Qg5 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.25"]
[Round "7"]
[White "Drent, Sjoerd"]
[Black "Pel, Bonno"]
[Result "0-1"]
[ECO "A36"]
[BlackElo "2300"]
[PlyCount "82"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 d6 2. c4 g6 3. Nc3 Bg7 4. g3 c5 5. Bg2 Nc6 6. Nge2 Nf6 7. 0-0 0-0 8. d3 a6 9. h3 Rb8 10. a4 Ne8 11. f4 f5 12. Kh2 Nc7 13. Rb1 Bd7 14. Be3 Ne6 15. Qd2 Ned4 16. b3 Kh8 17. Bg1 Qa5 18. Rfd1 Nxe2 19. Nxe2 Qxd2 20. Rxd2 b5 21. axb5 axb5 22. e5 Rfd8 23. e6 Be8 24. Rdd1 Rdc8 25. g4 fxg4 26. hxg4 Rc7 27. Bxc6 Bxc6 28. d4 Bf3 29. dxc5 Bxe2 30. cxd6 exd6 31. Rxd6 Bxg4 32. cxb5 h5 33. b6 Rc2+ 34. Kg3 Rc3+ 35. Kh2 Rc2+ 36. Kg3 g5 37. Be3 Rc3 38. Re1 gxf4+ 39. Kxf4 Rf8+ 40. Kg5 Kh7 41. Rd7 Rxb3 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.24"]
[Round "6"]
[White "Markus, John Raymond"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2238"]
[PlyCount "114"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Be2 c6 7. h3 b6 8. g4 Bb7 9. Qd2 Nbd7 10. 0-0-0 Rc8 11. Ne5 Nxe5 12. Bxe5 Ne4 13. Nxe4 Bxe5 14. dxe5 dxe4 15. Qd7 Qc7 16. g5 Rfd8 17. Qxc7 Rxd1+ 18. Rxd1 Rxc7 19. Rd8+ Kg7 20. h4 h6 21. Bg4 hxg5 22. hxg5 e6 23. b4 c5 24. bxc5 b5 25. Kb2 Bd5 26. Be2 Rxc5 27. a3 a6 28. Rd6 Bc6 29. c3 a5 30. Kb3 Bd5+ 31. Kb2 a4 32. Rb6 Bc6 33. c4 bxc4 34. Kc3 Bd5 35. Rb4 Kf8 36. Bd1 Ke7 37. Rxa4 Rb5 38. Ra7+ Kf8 39. Bc2 Kg7 40. a4 Rb8 41. a5 Rh8 42. a6 Rh2 43. Rd7 Bc6 44. Rc7 Bd5 45. a7 Rxf2 46. Rd7 Bc6 47. Rd6 Bb7 48. Rb6 Bd5 49. Rb5 Bc6 50. Rc5 Bb7 51. Rxc4 Re2 52. Rc7 Bd5 53. Rc8 Rxe3+ 54. Kb2 Rg3 55. a8Q Bxa8 56. Rxa8 Rxg5 57. Ra5 e3 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.22"]
[Round "5"]
[White "Compagnie, Luc G"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2421"]
[PlyCount "76"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. Qa4+ Qd7 7. d3 Qxa4 8. Nxa4 e5 9. Be3 Nba6 10. Rc1 Ne6 11. Nf3 f6 12. Nd2 Rb8 13. f4 exf4 14. gxf4 Bd7 15. Nc3 f5 16. Nc4 Nac7 17. Nd5 Nxd5 18. Bxd5 Be7 19. Ne5 b6 20. h4 Bf6 21. b3 Ke7 22. Nc4 Rhd8 23. Bd2 Bc8 24. Bg2 Bb7 25. Bxb7 Rxb7 26. Ne3 Nd4 27. h5 Ke6 28. Bc3 Rbd7 29. Kf2 Kf7 30. Nc4 Re8 31. Bxd4 Bxd4+ 32. e3 Bf6 33. Rcd1 Red8 34. Ke2 b5 35. Na3 a6 36. Nc2 Bc3 37. e4 fxe4 38. dxe4 Rd2+ 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.21"]
[Round "4"]
[White "Drent, Sjoerd"]
[Black "Bloemhard, Rudy"]
[Result "1/2-1/2"]
[ECO "A26"]
[BlackElo "2106"]
[PlyCount "77"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 g6 2. c4 Bg7 3. Nc3 d6 4. g3 e5 5. Bg2 Nc6 6. Nge2 Be6 7. d3 Qd7 8. 0-0 h5 9. h4 0-0-0 10. Rb1 f5 11. b4 Nf6 12. b5 Nd4 13. Nxd4 exd4 14. Nd5 fxe4 15. Nxf6 Bxf6 16. Bxe4 d5 17. cxd5 Bxd5 18. Re1 Bxe4 19. Rxe4 Rhe8 20. Rxe8 Rxe8 21. Bf4 Be5 22. Bg5 Qf7 23. Rb2 Bd6 24. Re2 Kd7 25. Rxe8 Qxe8 26. Qa4 Qe1+ 27. Kg2 Qb4 28. Qxb4 Bxb4 29. Bf6 Bc3 30. Be5 c6 31. Bb8 a5 32. bxa6 bxa6 33. Kf3 Ke6 34. Ke4 Be1 35. f3 c5 36. a4 Bf2 37. Bf4 Be1 38. Bb8 Bf2 39. Bf4 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.19"]
[Round "2"]
[White "Drent, Sjoerd"]
[Black "Szuveges, Grant"]
[Result "0-1"]
[ECO "A36"]
[BlackElo "2159"]
[PlyCount "77"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e6 6. Nge2 Nge7 7. 0-0 0-0 8. d3 d6 9. Rb1 Rb8 10. Be3 Nd4 11. b4 b6 12. a3 Nec6 13. f4 f5 14. Qd2 Bb7 15. b5 Nxe2+ 16. Nxe2 Nd4 17. Nxd4 cxd4 18. Bf2 fxe4 19. dxe4 e5 20. Qd3 Bc8 21. Be1 Qc7 22. Rc1 Kh8 23. Bb4 Be6 24. f5 Bg8 25. Bf3 Bh6 26. Rc2 Rbc8 27. Be2 Be3+ 28. Kg2 gxf5 29. exf5 Rfd8 30. f6 Bd5+ 31. cxd5 Qxc2 32. f7 Bh6 33. Bxd6 Qxd3 34. Bxe5+ Bg7 35. Bxg7+ Kxg7 36. Bxd3 Rxd5 37. Kf3 Re5 38. Kf4 Re7 39. Kg5 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2000.07.18"]
[Round "1"]
[White "Spaan, Nathanael"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2268"]
[PlyCount "81"]
[EventDate "2000.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 cxd6 5. Be2 g6 6. h4 h6 7. c4 Nb6 8. Nc3 Bg7 9. Be3 Nc6 10. d5 Ne5 11. Bd4 Bf6 12. Ne4 0-0 13. f4 Ned7 14. h5 Kg7 15. Nf3 Nc5 16. Nxf6 exf6 17. hxg6 fxg6 18. Bxc5 dxc5 19. Qd2 Qd6 20. 0-0-0 Bg4 21. Bd3 Bxf3 22. gxf3 f5 23. Qh2 h5 24. Rdg1 Kf7 25. Bxf5 gxf5 26. Qxh5+ Ke7 27. Rg7+ Kd8 28. Qg5+ Kc8 29. Rh6 Qd8 30. Qg6 Nxc4 31. Qe6+ Kb8 32. d6 Nxd6 33. Rd7 Qb6 34. Rxd6 Qb4 35. Qe5 Kc8 36. Qe6+ Kb8 37. Qe5 Kc8 38. Rd1 a6 39. Rh7 Qc4+ 40. Kb1 Qb4 41. Qc7# 1-0

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.16"]
[Round "7"]
[White "Drent, Sjoerd"]
[Black "L'Ami, Erwin"]
[Result "1/2-1/2"]
[ECO "D63"]
[WhiteElo "2038"]
[BlackElo "2035"]
[PlyCount "43"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 dxc4 7. Bxc4 Be7 8. 0-0 0-0 9. Bg5 Nbd7 10. Rc1 a6 11. a3 b5 12. Ba2 Bb7 13. Qd3 Nc5 14. Qc2 Nce4 15. Bxf6 Nxf6 16. d5 exd5 17. Rfd1 Rc8 18. Qf5 g6 19. Qh3 Ne4 20. Nxd5 Rxc1 21. Nxe7+ Qxe7 22. Rxc1 1/2-1/2

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.16"]
[Round "6"]
[White "Erwich, Marc"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "2118"]
[BlackElo "2038"]
[PlyCount "116"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. g3 d6 4. exd6 Qxd6 5. Bg2 g6 6. Ne2 Bg7 7. 0-0 0-0 8. Nbc3 c6 9. Nxd5 cxd5 10. d4 Nc6 11. c3 Bg4 12. h3 Bxe2 13. Qxe2 e6 14. Bf4 Qd7 15. h4 a6 16. h5 b5 17. hxg6 hxg6 18. Bf3 Rfe8 19. Kg2 e5 20. dxe5 Nxe5 21. Bxe5 Bxe5 22. Qd3 Rad8 23. Rad1 d4 24. Rfe1 Bg7 25. Rxe8+ Rxe8 26. c4 bxc4 27. Qxc4 Qb5 28. Qxb5 axb5 29. Rd3 b4 30. Kf1 Rc8 31. Bd1 Kf8 32. Ke2 Ke7 33. Rd2 Kd6 34. Bb3 Rc7 35. Kd3 g5 36. Rd1 Be5 37. Rh1 f6 38. Ke4 Re7 39. Kd3 Rc7 40. Rf1 g4 41. Ke4 Rg7 42. Rh1 Rg5 43. Kd3 Rf5 44. Rh2 Kc5 45. Bd1 Rg5 46. Ke4 d3 47. Kxd3 Bxb2 48. f4 Rd5+ 49. Kc2 Bc3 50. Bxg4 Kd4 51. Re2 Ra5 52. Be6 Rc5 53. Kb3 Kd3 54. Rg2 Ke3 55. Bg4 Kd3 56. Be2+ Ke3 57. Ba6 Kf3 58. Bb7+ Kg4 1/2-1/2

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.15"]
[Round "4"]
[White "Drent, Sjoerd"]
[Black "Esmaeel, Barzan"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2038"]
[BlackElo "1700"]
[PlyCount "85"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. 0-0 Nf6 6. d3 b5 7. Bb3 h6 8. Be3 Be7 9. a4 Rb8 10. axb5 axb5 11. h3 d6 12. Nc3 Nb4 13. Qd2 c5 14. Nh2 Nh7 15. f4 exf4 16. Bxf4 Nf6 17. e5 dxe5 18. Bxe5 Rb6 19. Qf4 0-0 20. Bc7 Qd4+ 21. Qxd4 cxd4 22. Bxb6 dxc3 23. bxc3 Nbd5 24. Bd4 Bb7 25. Ra7 Bc6 26. c4 bxc4 27. dxc4 Bd6 28. cxd5 Bxd5 29. Bxf6 Bxb3 30. Be7 Bxe7 31. Rxe7 Bxc2 32. Rc1 Ba4 33. Rcc7 Bb3 34. Nf3 Rd8 35. Red7 Ra8 36. Nd4 Ra1+ 37. Kf2 Ba2 38. Ra7 g6 39. Nc2 Rc1 40. Rxa2 Kg7 41. Ne3 Rc6 42. Ng4 Re6 43. Raa7 1-0

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.15"]
[Round "5"]
[White "Van Wijk, Rob"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "1939"]
[BlackElo "2038"]
[PlyCount "85"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Bc4 Nb6 5. Bb3 c5 6. d3 e6 7. Nf3 Be7 8. 0-0 0-0 9. Re1 N8d7 10. a4 Nf6 11. Ne4 Nbd5 12. Bg5 b6 13. Ne5 Bb7 14. Nxf6+ gxf6 15. Bh6 f5 16. Qh5 f6 17. Re3 Nxe3 18. Bxe6+ Kh8 19. Bxf8 fxe5 20. fxe3 Qxf8 21. Bxf5 Qg7 22. e4 Rg8 23. g3 Bc6 24. a5 Be8 25. Qh3 Bg6 26. axb6 axb6 27. Ra7 Qf6 28. Rb7 Bxf5 29. Qxf5 Qxf5 30. exf5 Bg5 31. Kf2 Rf8 32. g4 Rf6 33. Kf3 Rh6 34. Ke4 Bf4 35. h3 Rxh3 36. f6 Kg8 37. Kf5 Bh6 38. Rxb6 Rh2 39. c3 Rf2+ 40. Kxe5 Re2+ 41. Kf5 Rf2+ 42. Ke4 Bc1 43. b4 1/2-1/2

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.14"]
[Round "1"]
[White "Drent, Sjoerd"]
[Black "Hekkink, Geert JM"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "2038"]
[BlackElo "1620"]
[PlyCount "39"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. a4 Na5 9. Ba2 Be6 10. dxe5 c5 11. Nbd2 Nxd2 12. Bxd2 Nc4 13. Bg5 Be7 14. Bxe7 Kxe7 15. b3 Na3 16. c3 b4 17. cxb4 cxb4 18. Nd4 Qd7 19. Qd2 Rhc8 20. Qxb4+ 1-0

[Event "VCN SchaakFestival"]
[Site "Soest"]
[Date "1999.05.14"]
[Round "2"]
[White "Kohler, Aran"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2271"]
[BlackElo "2038"]
[PlyCount "95"]
[EventDate "1999.05.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 Bd6 4. e3 c5 5. c3 Bxf4 6. exf4 cxd4 7. Qxd4 Nf6 8. Na3 Nc6 9. Bb5 Bd7 10. Qe3 0-0 11. 0-0 Qa5 12. Bd3 Rae8 13. Rfe1 Ng4 14. Qe2 e5 15. fxe5 Ncxe5 16. Nxe5 Rxe5 17. Qc2 Rh5 18. Be2 Qc7 19. g3 Qc5 20. Bxg4 Bxg4 21. Re3 g6 22. Qa4 Be6 23. Nc2 Qb6 24. b3 Rf5 25. Rae1 Rf6 26. Qd4 Bf5 27. Qxb6 Rxb6 28. Nd4 Bh3 29. Re7 Rc8 30. R1e3 Kg7 31. f3 h5 32. a4 a5 33. Re8 Kf6 34. Rxc8 Bxc8 35. Re8 Bf5 36. Ra8 Ra6 37. Rxa6+ bxa6 38. Nxf5 Kxf5 39. Kf2 Ke5 40. Ke3 g5 41. h3 h4 42. f4+ gxf4+ 43. gxf4+ Kd6 44. Kd4 f6 45. f5 Kc6 46. c4 dxc4 47. bxc4 Kd6 48. c5+ 1-0

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "5"]
[White "Drent, Sjoerd"]
[Black "Bohm, Hans"]
[Result "0-1"]
[ECO "C10"]
[BlackElo "2390"]
[PlyCount "98"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Be7 8. Bd3 c5 9. Be3 0-0 10. 0-0 cxd4 11. Bxd4 Qd5 12. c4 Qd8 13. Re1 a5 14. Re3 g6 15. Bc2 Bd7 16. Bc3 Bc6 17. Nxc6 Qxd1+ 18. Rxd1 bxc6 19. Rf3 Ng4 20. h3 Nh6 21. Be4 Rfc8 22. Rd7 Kf8 23. Rfd3 f5 24. Bf3 Nf7 25. Re3 Ke8 26. Rd1 Ng5 27. Be2 Ne4 28. Bd4 Kf7 29. f3 Nc5 30. g3 Rd8 31. Bc3 Bf6 32. Rxd8 Rxd8 33. Bxa5 Ra8 34. Bc3 Bxc3 35. Rxc3 Rxa2 36. Rc2 Na4 37. Kf2 Rxb2 38. Rc1 e5 39. Ke3 Rb3+ 40. Kd2 Nc5 41. Rc3 Rb2+ 42. Ke1 Ra2 43. h4 h5 44. Kf2 Kf6 45. Ke3 f4+ 46. gxf4 exf4+ 47. Kf2 g5 48. hxg5+ Kxg5 49. Ke1 Kh4 0-1

[Event "NED-chT"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "4"]
[White "Bohm, Hans"]
[Black "Drent, Sjoerd"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2390"]
[PlyCount "90"]
[EventDate "1993.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c3 e6 3. Nf3 c5 4. Bg5 Nf6 5. e3 Nbd7 6. Nbd2 Be7 7. Bd3 0-0 8. Qb1 cxd4 9. exd4 h6 10. Bh4 Nh5 11. Bxe7 Qxe7 12. 0-0 e5 13. dxe5 Nxe5 14. Re1 Nxf3+ 15. Nxf3 Qd6 16. Nd4 Nf4 17. Bh7+ Kh8 18. Bf5 Ne6 19. Bxe6 Bxe6 20. Qd3 Rae8 21. Re3 Bd7 22. Rae1 Rxe3 23. Rxe3 Re8 24. Rxe8+ Bxe8 25. Qg3 Qxg3 26. hxg3 g6 27. Nc2 Bd7 28. Ne3 Be6 29. a3 Kg7 30. Kf1 Kf6 31. f4 h5 32. Ke2 Ke7 33. Kd3 Kd6 34. Kd4 f6 35. a4 Kc6 36. a5 b6 37. axb6 axb6 38. Nc2 Kd6 39. Nb4 Bf7 40. Nc2 Kc6 41. f5 g5 42. Ne3 b5 43. g4 h4 44. Nc2 Kd6 45. Nb4 Bg8 1/2-1/2

[Event "NED-chT corr"]
[Site "Netherlands"]
[Date "1992.??.??"]
[Round "?"]
[White "De Visser, Arnold W"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "76"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 Qd6 3. a3 e5 4. Nf3 Nd7 5. e3 c6 6. c4 a6 7. Nc3 Ngf6 8. cxd5 cxd5 9. b5 Be7 10. Qc2 0-0 11. a4 h6 12. Ba3 Qe6 13. Bxe7 Qxe7 14. d4 exd4 15. Nxd4 Ne5 16. Be2 Bg4 17. Bxg4 Nexg4 18. 0-0 Rfc8 19. Rac1 axb5 20. Ndxb5 Qe5 21. g3 h5 22. Qe2 Ne4 23. Nxe4 Rxc1 24. Rxc1 dxe4 25. Qc2 h4 26. Qe2 Qg5 27. Rc4 hxg3 28. hxg3 Qh5 29. f3 exf3 30. Qxf3 Qh2+ 31. Kf1 f5 32. Nd6 Qd2 33. Rxg4 Qd3+ 34. Kg2 Qc2+ 35. Kh3 fxg4+ 36. Qxg4 Rf8 37. e4 Qxa4 38. Nf5 Qa1 0-1

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "De Jong"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "C11"]
[PlyCount "51"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Ne4 5. Nxe4 dxe4 6. Be3 c5 7. dxc5 Nd7 8. Qg4 Qa5+ 9. c3 Bxc5 10. Qxg7 Rf8 11. Bxc5 Qxc5 12. Nh3 Qxe5 13. Qxe5 Nxe5 14. Ng5 f5 15. Nxh7 Rh8 16. Ng5 Ke7 17. f3 exf3 18. gxf3 Bd7 19. Kf2 Kf6 20. h4 Ng6 21. Rd1 Bc6 22. Rd6 Rae8 23. Bc4 Nxh4 24. Rg1 Ng6 25. Nxe6 Rh2+ 26. Kg3 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Drent, Sjoerd"]
[Black "Elich, CF."]
[Result "1/2-1/2"]
[ECO "C85"]
[PlyCount "82"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. Qe1 Nd7 8. b3 0-0 9. Bb2 Bf6 10. Qe3 Qe7 11. d4 exd4 12. Bxd4 Bxd4 13. Qxd4 Nc5 14. Nbd2 Rd8 15. Qe3 Bg4 16. Rfe1 Ne6 17. h3 Bh5 18. Rad1 Qd6 19. Rc1 Qc5 20. Qxc5 Nxc5 21. g4 Bg6 22. b4 Na4 23. Re3 a5 24. a3 axb4 25. axb4 c5 26. b5 f6 27. c4 Nb2 28. Rb1 Ra2 29. Kg2 Bf7 30. Rc1 Nd3 31. Rc3 Nf4+ 32. Kg3 g5 33. Ra3 Raxd2 34. Nxd2 Rxd2 35. Ra8+ Kg7 36. Ra7 b6 37. Rxc7 Kg6 38. Rc6 Bxc4 39. Rxb6 Rb2 40. Rc6 Rxb5 41. h4 Ne2+ 1/2-1/2

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Drent, Sjoerd"]
[Black "Hooykaas, GJ."]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "82"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Bb4 7. a3 Bxc3+ 8. bxc3 Nxe4 9. Qg4 Nf6 10. Qxg7 Rg8 11. Qh6 Rg6 12. Nxc6 dxc6 13. Qh4 e5 14. Rd1 Qe7 15. Be2 Bg4 16. f3 Bf5 17. 0-0 Bxc2 18. Rd2 Bf5 19. Bg5 h6 20. Bxf6 Rxf6 21. Rfd1 Be6 22. Rd6 Rg6 23. Qf2 Bb3 24. Rxg6 fxg6 25. Rb1 Bc2 26. Rb2 Bf5 27. g4 Be6 28. Qe3 Bd5 29. Bd3 g5 30. Bg6+ Kf8 31. Kf2 Kg7 32. Be4 Bxe4 33. Qxe4 Rf8 34. Re2 Re8 35. Rd2 Qe6 36. c4 Rf8 37. Re2 Rf4 38. Qxe5+ Qxe5 39. Rxe5 Kf6 40. Rc5 Ke6 41. h4 Kf6 1/2-1/2

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Drent, Sjoerd"]
[Black "Van der Leij, EJ."]
[Result "1-0"]
[ECO "A36"]
[PlyCount "129"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 e6 4. g3 Nf6 5. Bg2 Be7 6. Nge2 0-0 7. 0-0 e5 8. d3 d6 9. Rb1 Bg4 10. f3 Be6 11. a3 Rc8 12. b4 cxb4 13. axb4 Qb6+ 14. Kh1 Nxb4 15. Ba3 a5 16. Na2 Qc7 17. Bxb4 axb4 18. Nxb4 Ra8 19. Nc3 Rfc8 20. Qd2 Qa5 21. Rb2 Bd8 22. Rfb1 Qc5 23. Nc2 b6 24. Rb5 Qc7 25. h3 Bd7 26. R5b2 Nh5 27. Kh2 Qc5 28. Ne3 Bg5 29. Ncd5 Be6 30. Qe2 Bxe3 31. Nxe3 Rcb8 32. Rb5 Qc7 33. Qb2 Ra6 34. Qb4 Nf6 35. f4 Qd8 36. Qb2 exf4 37. gxf4 Bd7 38. Rb3 Nh5 39. Qf2 Bc6 40. d4 Rba8 41. R1b2 Nf6 42. d5 Ba4 43. Rb4 Nd7 44. Qg3 f6 45. Nf5 Qf8 46. Bf3 g6 47. Nd4 Qe8 48. Ne6 Rc8 49. h4 Kf7 50. h5 Qg8 51. Qh3 Ke7 52. Bg4 Ra7 53. Nd4 Rcc7 54. Be6 Qg7 55. hxg6 hxg6 56. Rg2 Kd8 57. Nf5 Qf8 58. Rxg6 Nc5 59. Rxb6 Bd7 60. Rb8+ Bc8 61. Rxc8+ Rxc8 62. Bxc8 Kxc8 63. Qg2 Qh8+ 64. Rh6 Qf8 65. Rh4 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Spoel, CP."]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "C05"]
[PlyCount "53"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Ne4 5. Bd3 Nxd2 6. Bxd2 c5 7. dxc5 Nd7 8. Nf3 Nxc5 9. 0-0 Bd7 10. Be3 Rc8 11. Be2 a5 12. c4 dxc4 13. Bxc4 b5 14. Be2 Be7 15. Qd4 0-0 16. Rac1 Rc7 17. Rfd1 Qc8 18. Qd2 b4 19. b3 Rd8 20. Qc2 Qb8 21. Bg5 Bxg5 22. Nxg5 g6 23. Ne4 Rdc8 24. Nf6+ Kg7 25. Qd2 Bb5 26. Bxb5 Qxb5 27. Nh5+ 1-0

[Event "corr"]
[Site "corr"]
[Date "1988.??.??"]
[Round "?"]
[White "De Jong, Peter JJ"]
[Black "Drent, Sjoerd"]
[Result "0-1"]
[ECO "D34"]
[PlyCount "86"]
[EventDate "1988.03.06"]
[EventType "match (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c5 4. cxd5 exd5 5. Nc3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 c4 10. Ne5 Be6 11. f4 Ng4 12. Nxg4 Bxg4 13. Bxd5 Bxg5 14. fxg5 Qxg5 15. Rf4 Rad8 16. Qf1 Be6 17. Bxe6 fxe6 18. e3 b5 19. Qg2 Nb4 20. Ne4 Qd5 21. Nc5 Qxg2+ 22. Kxg2 Rxf4 23. gxf4 Nc2 24. Rc1 Nxe3+ 25. Kf3 Nf5 26. Nxe6 Nxd4+ 27. Nxd4 Rxd4 28. Rc2 Kf7 29. Ke3 Rd3+ 30. Ke4 Ke6 31. a4 a6 32. axb5 axb5 33. Rg2 g6 34. Rc2 Kd6 35. f5 gxf5+ 36. Kxf5 Kc5 37. Ke4 Rh3 38. Rf2 Kb4 39. Kd4 Rh4+ 40. Kd5 Rh5+ 41. Kd4 Kb3 42. Rg2 Rh3 43. Rf2 b4 0-1

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1988.??.??"]
[Round "?"]
[White "Goebel, Wolfgang"]
[Black "Drent, Sjoerd"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "63"]
[EventDate "1988.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 Qh4+ 12. Bf2 Qf4 13. c5 Nd7 14. Bb5 Be7 15. Bxc6 bxc6 16. Qe2 Rb8 17. 0-0 0-0 18. Kh1 f6 19. exf6 Rxf6 20. Bg3 Qf5 21. Bxc7 Rbf8 22. Bg3 g5 23. Rae1 h5 24. Qa6 Qh3 25. Qxc6 h4 26. Bc7 Rxf3 27. Rxf3 Qxf3+ 28. Qxf3 Rxf3 29. Rxe6 h3 30. Kg1 Kf7 31. Re1 Bf6 32. Nb5 1-0

[Event "NED Open-ch13"]
[Site "Dieren"]
[Date "1982.08.??"]
[Round "3"]
[White "Drent, Sjoerd"]
[Black "Schmittdiel, Eckhard"]
[Result "0-1"]
[ECO "A18"]
[BlackElo "2205"]
[PlyCount "28"]
[EventDate "1982.06.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 e5 8. Nf3 exd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Qxd2 c5 12. Rb1 cxd4 13. Nxd4 0-0 14. Be2 Rd8 0-1

