[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.07.07"]
[Round "7"]
[White "Zwaan, Gert Jan"]
[Black "Jansen, Bert"]
[Result "1/2-1/2"]
[ECO "A00"]
[BlackElo "1540"]
[PlyCount "80"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. a3 e5 2. b4 d6 3. Bb2 Nf6 4. e3 g6 5. h3 Bg7 6. g4 0-0 7. Bg2 Re8 8. d3 c6 9. Nd2 d5 10. Rb1 a5 11. Bf3 e4 12. dxe4 dxe4 13. Bg2 axb4 14. axb4 Ra4 15. g5 Nh5 16. Bxg7 Nxg7 17. Nxe4 Qxd1+ 18. Rxd1 Nh5 19. c3 Ra3 20. h4 Bf5 21. Nd6 Rd8 22. Nxb7 Rxd1+ 23. Kxd1 Rxc3 24. Na5 Rc2 25. Bf3 Rb2 26. Nxc6 Nxc6 27. Bxc6 Rxb4 28. Bf3 Be6 29. Ne2 Ng7 30. Nd4 Rb1+ 31. Kc2 Rxh1 32. Bxh1 Nf5 33. Nxf5 Bxf5+ 34. e4 Be6 35. Kc3 Kg7 36. e5 h5 37. Kd4 Kf8 38. Bd5 Bd7 39. f4 Ke7 40. Kc5 Bf5 1/2-1/2

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.23"]
[Round "5"]
[White "Bingen, Stanley"]
[Black "Jansen, Bert"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1219"]
[BlackElo "1540"]
[PlyCount "72"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bd3 0-0 6. 0-0 c5 7. d5 a6 8. a4 Qc7 9. b3 Nh5 10. Bb2 Nf4 11. Qd2 Nxd3 12. cxd3 f5 13. Rfe1 fxe4 14. dxe4 Bg4 15. Nh4 Bf6 16. g3 Nd7 17. h3 Bh5 18. Ng2 Ne5 19. Nh4 Bxh4 20. Qh6 Bf6 21. g4 Bxg4 22. hxg4 Nd3 23. Re3 Nxb2 24. Rh3 Rf7 25. Ne2 Qd7 26. f3 Nd3 27. Rf1 b5 28. f4 Qxg4+ 29. Ng3 Bd4+ 30. Kg2 Raf8 31. Rh4 Qd7 32. f5 Ne5 33. Rfh1 bxa4 34. bxa4 Qxa4 35. Qxh7+ Rxh7 36. Rxh7 Qc2+ 0-1

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "4"]
[White "Jansen, Bert"]
[Black "Lim, Danny"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1540"]
[BlackElo "1507"]
[PlyCount "110"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Nc3 Bxc3+ 4. bxc3 b6 5. d5 e5 6. e4 h6 7. Ne2 Nf6 8. Ng3 Na6 9. Nf5 d6 10. Nxg7+ Kf8 11. Nf5 Nxe4 12. Nxh6 Qf6 13. Qf3 Qxf3 14. gxf3 Nxc3 15. a4 Nc5 16. Be2 Nxe2 17. Kxe2 Nb3 18. Be3 Nxa1 19. Rxa1 Kg7 20. Rg1+ Kf8 21. h4 a5 22. Rh1 Bd7 23. Ng4 Bxg4 24. fxg4 Ke7 25. f4 exf4 26. Bxf4 Rae8 27. Kf3 Kd7 28. h5 f6 29. h6 Rh7 30. Rg1 c6 31. dxc6+ Kxc6 32. Rd1 Re6 33. Rd5 Re5 34. Bxe5 dxe5 35. Ke4 Rxh6 36. Kf5 Rh4 37. Rb5 e4 38. Kxe4 Rxg4+ 39. Kd3 Rf4 40. Rd5 Rf3+ 41. Kd4 Ra3 42. Rf5 Rxa4 43. Rxf6+ Kb7 44. Kd5 Ra1 45. Rf7+ Ka6 46. Rf8 Rc1 47. Rf6 a4 48. Rf8 Ka5 49. Rf2 a3 50. Ra2 Kb4 51. Kc6 Rxc4+ 52. Kxb6 Kb3 53. Rg2 a2 54. Rg3+ Rc3 55. Rg5 a1Q 0-1

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "6"]
[White "Jansen, Bert"]
[Black "Van der Hoeven, Peter"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1540"]
[BlackElo "1722"]
[PlyCount "86"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bg5 d6 6. e3 Nc6 7. Be2 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qxd8 Rxd8 11. Ne4 Nxe4 12. Bxd8 c6 13. Rd1 Be6 14. f3 Nc5 15. b3 e4 16. Be7 Bc3+ 17. Kf2 exf3 18. gxf3 Nd7 19. h4 f6 20. Rd6 Kf7 21. Rd3 Ba5 22. Bd6 Bf5 23. e4 Bb6+ 24. Kg2 Re8 25. Rhd1 Nc5 26. R3d2 Bc8 27. b4 Na4 28. c5 Bd8 29. Rd3 Nb2 30. Bb8 Nxd3 31. Bxd3 a6 32. Bc4+ Kg7 33. Bd6 f5 34. exf5 Bxf5 35. Kg3 Kh6 36. Bd3 Kh5 37. Bxf5 gxf5 38. Kf4 Re2 39. Kxf5 Rxa2 40. Bg3 Rg2 41. Kf4 Bc7+ 42. Kf5 Rxg3 43. Rd7 Rxf3+ 0-1

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.06.02"]
[Round "3"]
[White "Sonneveldt, Peter"]
[Black "Jansen, Bert"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1676"]
[BlackElo "1540"]
[PlyCount "31"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. Bg5 c6 7. a4 Nbd7 8. Qd2 Qc7 9. 0-0 e5 10. Rad1 exd4 11. Nxd4 Ne5 12. f4 Neg4 13. h3 h5 14. hxg4 hxg4 15. f5 Re8 16. fxg6 1-0

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.05.26"]
[Round "2"]
[White "Jansen, Bert"]
[Black "Otto, Paul"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1540"]
[BlackElo "1108"]
[PlyCount "43"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. c4 d6 3. Nc3 Nf6 4. Bg5 g6 5. Bxf6 exf6 6. e3 Bh6 7. h4 0-0 8. Bd3 f4 9. e4 Qe8 10. f3 f5 11. Nge2 Nc6 12. a3 fxe4 13. Nxe4 Nxd4 14. h5 Nxe2 15. hxg6 Bg7 16. gxh7+ Kh8 17. Qxe2 Bf5 18. Kf1 Qd7 19. Re1 Bxe4 20. Bxe4 Qe7 21. Qd2 Rad8 22. Bxb7 1-0

[Event "Leiden SB-chB"]
[Site "Leiden"]
[Date "2004.05.19"]
[Round "1"]
[White "Frijling, Jeroen"]
[Black "Jansen, Bert"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "1813"]
[BlackElo "1540"]
[PlyCount "79"]
[EventDate "2004.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 0-0 7. Bd3 Nbd7 8. h3 Re8 9. 0-0 dxc4 10. Bxc4 e6 11. Rc1 Nb6 12. Bb3 Nbd5 13. Bg3 Nxc3 14. bxc3 b6 15. Bc2 Bb7 16. c4 Nd7 17. e4 b5 18. Bd3 Qa5 19. Qb3 a6 20. Rfd1 Nf6 21. Ne5 Nh5 22. Bh2 Bh6 23. Rc2 Bf4 24. Bxf4 Nxf4 25. Bf1 Nh5 26. Nd7 Qd8 27. Nc5 Bc8 28. e5 Ng7 29. Ne4 Qh4 30. Nf6+ Kf8 31. Nxe8 Kxe8 32. d5 exd5 33. cxd5 Nf5 34. Qc3 Ne7 35. dxc6 Be6 36. c7 Qe4 37. Qd4 Qxd4 38. Rxd4 Nd5 39. c8Q+ Bxc8 40. Rxd5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.07.01"]
[Round "7"]
[White "Van der Marel, Eric J"]
[Black "Jansen, Bert"]
[Result "1-0"]
[ECO "D86"]
[WhiteElo "1964"]
[BlackElo "1452"]
[PlyCount "51"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Be3 c5 9. Ne2 cxd4 10. cxd4 Nc6 11. 0-0 a6 12. Rc1 Bd7 13. Bd3 Rc8 14. Qd2 e5 15. d5 Nd4 16. Rxc8 Nxe2+ 17. Bxe2 Bxc8 18. Bc5 Re8 19. a4 f5 20. f3 fxe4 21. fxe4 Bf8 22. Be3 Qd6 23. Bc4 Bd7 24. Qf2 Bg7 25. Bc5 Qc7 26. d6+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.24"]
[Round "6"]
[White "Bingen, Stanley"]
[Black "Jansen, Bert"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1187"]
[BlackElo "1452"]
[PlyCount "88"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. d3 g6 4. Nf3 Bg7 5. Ng5 0-0 6. 0-0 e6 7. c3 Nc6 8. Be3 Na5 9. Bb3 Nxb3 10. axb3 a6 11. b4 b5 12. d4 Bb7 13. f3 Qe7 14. Nd2 Bh6 15. Qe2 Nd7 16. Nxe6 Bxe3+ 17. Qxe3 fxe6 18. Rae1 Rae8 19. c4 Nf6 20. d5 exd5 21. cxd5 Bxd5 22. Qa7 Ra8 23. exd5 Qxe1 24. Qxa8 Qxf1+ 25. Kxf1 Rxa8 26. g4 Nxd5 27. Ne4 Rf8 28. Ng5 h6 29. Ne6 Rxf3+ 30. Kg2 Rb3 31. g5 Rxb2+ 32. Kf3 h5 33. Ke4 c6 34. Nd8 Nxb4 35. Kd4 Rxh2 36. Kc3 a5 37. Nb7 Nd5+ 38. Kb3 a4+ 39. Ka3 Rh3+ 40. Kb2 b4 41. Nxd6 Rh2+ 42. Kc1 a3 43. Nc4 a2 44. Nd2 a1Q+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.17"]
[Round "5"]
[White "Jansen, Bert"]
[Black "Van Loenen, Daniel"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "1452"]
[BlackElo "1940"]
[PlyCount "60"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. d5 c6 5. Nc3 Nf6 6. Qc2 cxd5 7. Bg5 Bb4 8. exd5 Qxd5 9. Bxf6 gxf6 10. Rd1 Qc6 11. Nf3 Be6 12. Be2 Nd7 13. 0-0 0-0-0 14. Nd2 Nb6 15. Bf3 Qc5 16. Nde4 Qe7 17. Na4 f5 18. Nxb6+ axb6 19. Nc3 Bxc3 20. Qxc3 Qc5 21. Rc1 Kb8 22. Be2 b5 23. b3 Rd4 24. bxc4 bxc4 25. a4 Rg8 26. a5 Bd5 27. g3 f4 28. Rb1 fxg3 29. hxg3 Rh4 30. Bf3 Rxg3+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.10"]
[Round "4"]
[White "Van Stee, Rob"]
[Black "Jansen, Bert"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "1452"]
[PlyCount "74"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bb5+ c6 6. Be2 0-0 7. h3 Nbd7 8. 0-0 b5 9. Bd3 Bb7 10. Bg5 a6 11. Qd2 c5 12. dxc5 Nxc5 13. e5 dxe5 14. Nxe5 Qc7 15. Bf4 Nh5 16. Nxg6 Nxf4 17. Nxf4 Nxd3 18. cxd3 Bh6 19. Nfd5 Qd6 20. Nxe7+ Kh8 21. Nf5 Bxd2 22. Nxd6 Bc6 23. Nde4 Bf4 24. Rfe1 Rad8 25. Rad1 Rg8 26. g3 Rg6 27. Kh2 Bc7 28. d4 h5 29. h4 b4 30. Nb1 Bd5 31. b3 f5 32. Nc5 f4 33. Rg1 a5 34. Nd3 fxg3+ 35. fxg3 Re6 36. Nc5 Re2+ 37. Kh3 Bf3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.06.03"]
[Round "3"]
[White "Jansen, Bert"]
[Black "Vernooy, Daan"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1452"]
[BlackElo "1547"]
[PlyCount "123"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Be2 Nbd7 7. Nf3 c5 8. d5 Ne8 9. Qd2 Ne5 10. Bh6 Nxf3+ 11. Bxf3 f5 12. h4 Qa5 13. Bxg7 Nxg7 14. h5 f4 15. hxg6 hxg6 16. 0-0-0 g5 17. Qe2 Qd8 18. Rdg1 e5 19. g3 Qf6 20. Kb1 g4 21. gxf4 Qxf4 22. Bxg4 Bxg4 23. Rxg4 Qxf2 24. Qd1 Rf7 25. Rgh4 Rff8 26. Rh7 Qd4 27. Rh8+ Kf7 28. Rxf8+ Rxf8 29. Qa4 Qd3+ 30. Ka1 Ke7 31. Qxa7 Rf1+ 32. Rxf1 Qxf1+ 33. Nb1 Qxc4 34. Qxb7+ Kf6 35. Qd7 Qa6 36. Qd8+ Kg6 37. Qd7 Kf6 38. Qd8+ Kg6 39. Qd7 Kf6 40. a3 Kg6 41. Qg4+ Kf6 42. Nd2 Qd3 43. Qf3+ Qxf3 44. Nxf3 Ke7 45. b4 cxb4 46. axb4 Kd7 47. Kb2 Ne8 48. Kb3 Nf6 49. Nd2 Kc7 50. Ka4 Kb7 51. Ka5 Ka7 52. b5 Kb7 53. b6 Nd7 54. Nc4 Nc5 55. Nxd6+ Kb8 56. Kb5 Nd7 57. Kc6 Nf6 58. Nf7 Nxe4 59. Nxe5 Nf6 60. Nd7+ Nxd7 61. Kxd7 Kb7 62. d6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.05.27"]
[Round "2"]
[White "Schenkelaars, Vincent"]
[Black "Jansen, Bert"]
[Result "1-0"]
[ECO "D92"]
[WhiteElo "1748"]
[BlackElo "1452"]
[PlyCount "75"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Nf3 Bg4 7. h3 Bf5 8. Rc1 Qa5 9. Nd2 0-0 10. Be2 dxc4 11. Nxc4 Qd8 12. 0-0 Nbd7 13. b4 Nb6 14. Nxb6 Qxb6 15. a3 Rfe8 16. Bc4 a6 17. Qb3 e6 18. g4 Nxg4 19. hxg4 Bxg4 20. Ne4 Qd8 21. Bg3 Bf3 22. Bd3 e5 23. Nd2 e4 24. Nxf3 exf3 25. Qd1 Qf6 26. Bf4 g5 27. Be5 Qe6 28. Qxf3 Bxe5 29. dxe5 Qxe5 30. Rc5 Qe7 31. Qf5 f6 32. Kg2 h5 33. Qg6+ Qg7 34. Qxh5 Rad8 35. Bc4+ Kf8 36. Rh1 Ke7 37. Qh7 Qxh7 38. Rxh7+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2003.05.20"]
[Round "1"]
[White "Jansen, Bert"]
[Black "Janse, Paul"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1452"]
[BlackElo "2183"]
[PlyCount "59"]
[EventDate "2003.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 095 Extra"]
[Source "ChessBase"]
[SourceDate "2003.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2003.09.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. e3 e5 5. d5 Nce7 6. Bxc4 Ng6 7. Qb3 Bd6 8. g3 a6 9. a4 Nf6 10. e4 0-0 11. Bg5 h6 12. Bd2 Bc5 13. f3 Ne8 14. Nce2 Nd6 15. Bb4 Bxb4+ 16. Qxb4 f5 17. Bd3 f4 18. Rc1 Rf7 19. b3 Qf8 20. Qc3 Bd7 21. Qa5 Rc8 22. Qc3 c6 23. dxc6 Rxc6 24. Qd2 Rxc1+ 25. Qxc1 Be6 26. Qb2 fxg3 27. hxg3 Rxf3 28. Qc2 Rf7 29. Nc3 Rc7 30. Qd2 0-1

