[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.28"]
[Round "7"]
[White "Thissen, Thomas"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1986"]
[BlackElo "1981"]
[PlyCount "74"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 Bc5 6. b4 Bb6 7. b5 Na5 8. Nxe5 Nxc4 9. Nxc4 0-0 10. 0-0 d5 11. Nxb6 axb6 12. e5 Nh7 13. a4 Re8 14. f4 Bd7 15. Na3 c5 16. d4 c4 17. Bb2 Bf5 18. Nc2 Be4 19. Ne3 Qh4 20. Bc1 f5 21. Bd2 Nf8 22. Be1 Qe7 23. g4 g6 24. gxf5 gxf5 25. Qh5 Qf7 26. Qxh6 Re6 27. Qh4 Qg7+ 28. Bg3 Rh6 29. Qg5 Rg6 30. Qh4 Ne6 31. Kf2 Kf7 32. Qh5 Rh8 33. Nxf5 Rxh5 34. Nxg7 Nxg7 35. a5 bxa5 36. Rxa5 Rb6 37. Rg1 Nf5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.21"]
[Round "6"]
[White "Leeuwenburgh, Evert"]
[Black "De Wit, Jerome"]
[Result "1-0"]
[ECO "B74"]
[WhiteElo "1981"]
[BlackElo "1712"]
[PlyCount "83"]
[EventDate "2011.05.17"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 Nc6 9. Nb3 Be6 10. f4 Rc8 11. Bf3 a6 12. Nd5 Bxd5 13. exd5 Na5 14. Nxa5 Qxa5 15. c3 b5 16. Qd2 Rb8 17. a3 Qc7 18. Rad1 Nd7 19. Kh1 Nb6 20. Qe2 Nc4 21. Bd4 Rfe8 22. Bxg7 Kxg7 23. b3 Nb6 24. Qe3 Nd7 25. f5 Qc5 26. Qd2 Ne5 27. Be2 f6 28. fxg6 hxg6 29. b4 Qc8 30. Ra1 Rh8 31. a4 Rh6 32. Qe3 Qh8 33. h3 Qc8 34. axb5 axb5 35. Ra7 Qf8 36. Rfa1 Qf7 37. Rc7 Rbh8 38. Raa7 Qxd5 39. Rxe7+ Kf8 40. Kh2 Rxh3+ 41. gxh3 g5 42. Rec7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.15"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Wagemans, Ed"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1981"]
[BlackElo "1897"]
[PlyCount "188"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nf3 Bg4 5. Nc3 e6 6. Bd3 Nbd7 7. h3 Bh5 8. Qb3 dxc4 9. Bxc4 Qb6 10. Bd2 Qxb3 11. Bxb3 Bb4 12. Ne4 Bxd2+ 13. Nexd2 0-0 14. Rc1 Rfd8 15. 0-0 Rac8 16. Rfe1 h6 17. e4 c5 18. d5 e5 19. Bc4 Bxf3 20. Nxf3 Ne8 21. Bb5 f6 22. b4 b6 23. Nd2 Nd6 24. Ba6 Rc7 25. Be2 Kf8 26. Bg4 c4 27. Rc3 Ke7 28. a4 a6 29. h4 Ra8 30. h5 b5 31. a5 Rf8 32. Be6 Kd8 33. Ree3 Re8 34. Rg3 Nf8 35. Bg4 Nh7 36. Rge3 Ng5 37. Kf1 Rg8 38. g3 Re7 39. Rc1 Rf8 40. Rce1 Rfe8 41. Nb1 Ngxe4 42. Rxe4 f5 43. Bxf5 Nxf5 44. Nc3 Nd6 45. Rg4 Rf8 46. Kg2 Rf5 47. Rg6 Kd7 48. g4 Rf4 49. Re3 Rd4 50. Kg3 e4 51. Kf4 Rd2 52. Rxd6+ Kxd6 53. Nxe4+ Rxe4+ 54. Kxe4 Rxf2 55. Rg3 Re2+ 56. Kf3 Rd2 57. Ke4 Rxd5 58. Rf3 Rg5 59. Rf7 Re5+ 60. Kd4 Re7 61. Rf8 Rc7 62. Kc3 Ke6 63. Rf5 Rf7 64. Rc5 Rf6 65. Rc7 g6 66. hxg6 Rxg6 67. Rc6+ Kf7 68. Rc7+ Kf6 69. Rc6+ Kg5 70. Rb6 h5 71. gxh5 Kxh5 72. Rb8 Kg4 73. Rb6 Kf5 74. Rb8 Ke5 75. Ra8 Rg3+ 76. Kc2 Kd4 77. Rxa6 Rg2+ 78. Kd1 Kd3 79. Rd6+ Kc3 80. a6 Kxb4 81. a7 Ra2 82. Rd7 c3 83. Rc7 Kb3 84. Rb7 b4 85. Rc7 Kb2 86. Rc4 b3 87. Rc7 c2+ 88. Kd2 Rxa7 89. Rc8 Rd7+ 90. Ke3 c1Q+ 91. Rxc1 Kxc1 92. Ke4 b2 93. Ke5 b1Q 94. Ke6 Qb7 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.07"]
[Round "4"]
[White "Straver, Robert"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2143"]
[BlackElo "1981"]
[PlyCount "87"]
[EventDate "2011.05.17"]
[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. Bg5 Ne4 3. Bf4 d5 4. e3 e6 5. Nd2 Nxd2 6. Qxd2 Be7 7. Nf3 Nd7 8. Bd3 f5 9. c4 Nf6 10. a3 c6 11. Ne5 0-0 12. h3 Ne4 13. Qc2 Bd7 14. 0-0 Be8 15. f3 Nd6 16. Rac1 g5 17. Bh2 Bg6 18. g4 dxc4 19. Nxc4 Nxc4 20. Qxc4 Qd7 21. Be5 Bd6 22. f4 gxf4 23. Bxd6 Qxd6 24. Rxf4 Kg7 25. g5 Rae8 26. Qc5 Qxc5 27. Rxc5 Re7 28. Kf2 Rd8 29. Be2 Rd5 30. Bf3 e5 31. Rxd5 exf4 32. Re5 fxe3+ 33. Kxe3 Rd7 34. h4 f4+ 35. Kxf4 Rxd4+ 36. Kg3 Rd7 37. h5 Bf7 38. Kf4 h6 39. g6 Bb3 40. Bg4 Rc7 41. Re8 c5 42. Ke5 Ba4 43. Rb8 b6 44. Be6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.06.01"]
[Round "3"]
[White "De Jeu, Marcel"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1960"]
[BlackElo "1981"]
[PlyCount "76"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. 0-0 Be7 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 Nf6 10. Qa4+ Qd7 11. Qc2 c6 12. Nc3 0-0 13. e4 Qe6 14. b3 Re8 15. Bb2 Qg4 16. e5 Bf5 17. Qe2 Bc5 18. Qxg4 Nxg4 19. Na4 Bf8 20. h3 Nf6 21. Rfd1 Nd7 22. f4 Red8 23. Rac1 h5 24. Rd4 Be7 25. Kh2 Rac8 26. Bf3 b5 27. Nc3 Nxe5 28. Rxd8+ Rxd8 29. fxe5 Rd2+ 30. Kh1 Rxb2 31. Bxc6 b4 32. Nd5 Bg5 33. Re1 Bxh3 34. Nxb4 Bd2 35. Nd3 Rxa2 36. Re2 Bf1 37. Nb4 Bxe2 38. Nxa2 Bd3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.05.24"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Heemskerk, Wim"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1981"]
[BlackElo "2285"]
[PlyCount "113"]
[EventDate "2011.05.17"]
[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 e6 2. d4 d5 3. e5 c5 4. dxc5 Nc6 5. Nf3 Bxc5 6. Bd3 f6 7. Qe2 fxe5 8. Nxe5 Nxe5 9. Qxe5 Qf6 10. Bf4 Bd4 11. Qxf6 gxf6 12. c3 Bb6 13. Nd2 Ne7 14. Nb3 e5 15. Be3 Bxe3 16. fxe3 0-0 17. 0-0 b6 18. e4 Be6 19. Rae1 Rad8 20. exd5 Bxd5 21. Bc2 Ng6 22. g3 Be6 23. Rd1 Kg7 24. Rxd8 Rxd8 25. Rd1 Rxd1+ 26. Bxd1 f5 27. Nc1 Kf6 28. Kf2 Ne7 29. a3 Nc6 30. Bb3 Na5 31. Bxe6 Kxe6 32. b3 e4 33. c4 Ke5 34. Ke3 a6 35. a4 Nc6 36. Ne2 a5 37. h3 Nb4 38. Nf4 Nc2+ 39. Kd2 Nd4 40. Kc3 e3 41. Kd3 e2 42. Nxe2 Nxb3 43. Ke3 Nc5 44. Nc3 h5 45. h4 Ne4 46. Nd5 Nxg3 47. Nxb6 f4+ 48. Kf3 Nf5 49. Nd7+ Kd6 50. Kxf4 Nxh4 51. Nf6 Kc5 52. Nxh5 Kxc4 53. Ke4 Kb4 54. Nf4 Kxa4 55. Nd5 Kb3 56. Nb6 Ng6 57. Kd4 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2011.05.17"]
[Round "1"]
[White "Kuipers, Joris"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1604"]
[BlackElo "1981"]
[PlyCount "90"]
[EventDate "2011.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Nbd7 5. Nbd2 c6 6. h3 b6 7. Bd3 Bb7 8. 0-0 Be7 9. Re1 c5 10. c3 Rc8 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Bxe4 14. Rxe4 0-0 15. Qa4 Nf6 16. Re2 Nd5 17. Bg3 cxd4 18. cxd4 a5 19. a3 Qe8 20. Qb3 Qc6 21. Ne5 Qb7 22. Nc4 Qa6 23. Rc2 a4 24. Qd3 Rc6 25. Rac1 Rfc8 26. Ne5 Qxd3 27. Rxc6 Rxc6 28. Nxd3 Rxc1+ 29. Nxc1 b5 30. Nd3 Nb6 31. Bf4 Nc4 32. Bc1 Bf6 33. Be3 Kf8 34. Kf1 Ke7 35. Ke1 Kd6 36. Ke2 Nxe3 37. fxe3 Kd5 38. Kd2 Kc4 39. Kc2 Kd5 40. Nb4+ Ke4 41. Kd2 Bg5 42. Nc2 f5 43. Ke2 Be7 44. Nb4 Bxb4 45. axb4 f4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.30"]
[Round "7"]
[White "Leeuwenburgh, Evert"]
[Black "Hellenberg, Jan Amerik"]
[Result "0-1"]
[ECO "D53"]
[WhiteElo "2056"]
[BlackElo "2010"]
[PlyCount "118"]
[EventDate "2009.05.19"]
[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 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e3 c6 6. Rc1 a6 7. a3 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. Nf3 Nbd7 11. 0-0 0-0 12. b4 a5 13. Qb3 axb4 14. axb4 h6 15. Bxf6 Nxf6 16. Ne5 Qd6 17. Rb1 Ra6 18. Rfc1 Rfa8 19. Ne4 Nxe4 20. Bxe4 Ra3 21. Qd1 Bf6 22. Nd3 R8a7 23. Nc5 Bc8 24. Nd3 Bd7 25. Rc5 R7a6 26. Rbc1 Be8 27. g3 Bd7 28. Ne5 Bxe5 29. dxe5 Qxd1+ 30. Rxd1 Ra1 31. Bb1 Kf8 32. Rcc1 Ke7 33. Rd4 Be8 34. Kg2 R6a3 35. Rcd1 Rc3 36. Be4 Rxd1 37. Rxd1 c5 38. bxc5 Rxc5 39. f4 Bc6 40. Kf3 Bxe4+ 41. Kxe4 Rc4+ 42. Rd4 Rc5 43. Rd6 f5+ 44. Kd4 Rc2 45. Rb6 Rxh2 46. Rb7+ Kf8 47. Rxb5 Rd2+ 48. Kc3 Rd7 49. Rb4 Kf7 50. Rd4 Rc7+ 51. Kd2 g5 52. Ke2 g4 53. Rd2 h5 54. Kf2 Ke7 55. Kg2 Rd7 56. Ra2 Kf7 57. Rc2 Kg6 58. Ra2 h4 59. gxh4 Kh5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.23"]
[Round "6"]
[White "Van Drunick, Jan Willem"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1919"]
[BlackElo "2056"]
[PlyCount "65"]
[EventDate "2009.05.19"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 bxc6 7. Nd2 d6 8. Nb3 Bb6 9. Bd3 a5 10. a4 Be6 11. Nd2 h6 12. 0-0 Qxf3 13. gxf3 Nf6 14. Nc4 Bc5 15. Bd2 Bb4 16. c3 d5 17. cxb4 dxc4 18. Be2 0-0-0 19. Bc3 Nh5 20. Rfd1 Nf4 21. Bf1 axb4 22. Bxb4 Kb7 23. Bc3 f6 24. a5 c5 25. Rdc1 h5 26. a6+ Ka7 27. Ba5 Rd7 28. Bxc4 Bh3 29. Bb5 Rh6 30. Bf1 Ne2+ 31. Bxe2 Rg6+ 32. Kh1 Bg2+ 33. Kg1 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.16"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Heemskerk, Wim"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2056"]
[BlackElo "2182"]
[PlyCount "52"]
[EventDate "2009.05.19"]
[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 e6 2. d4 d5 3. e5 c5 4. dxc5 Nc6 5. Nf3 Bxc5 6. Bd3 f6 7. Qe2 fxe5 8. Nxe5 Qf6 9. Nf3 Nge7 10. c3 h6 11. Be3 Bd6 12. Nbd2 e5 13. 0-0-0 0-0 14. h3 Nf5 15. Bxf5 Qxf5 16. Nb3 d4 17. a3 Be6 18. Na1 Rac8 19. Qc2 Qf7 20. Bd2 Na5 21. Rde1 Bf5 22. Qa4 Qa2 23. Kd1 Nc4 24. Ke2 Nxb2 25. Qb3+ Qxb3 26. Nxb3 Bd3# 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.09"]
[Round "4"]
[White "Van Amsterdam, Jan"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C29"]
[WhiteElo "1730"]
[BlackElo "2056"]
[PlyCount "42"]
[EventDate "2009.05.19"]
[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 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Nxc3 6. bxc3 Be7 7. Nf3 c5 8. Be2 Nc6 9. 0-0 Be6 10. Qe1 0-0 11. Qg3 Kh8 12. Ng5 Qd7 13. d4 cxd4 14. Bd3 h6 15. Nh7 Rg8 16. Ng5 dxc3 17. Kh1 Raf8 18. Bh7 Bxg5 19. Bxg5 Kxh7 20. Qh4 Nxe5 21. Rf6 Ng6 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.06.02"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "Van der Maat, Niek"]
[Result "1-0"]
[ECO "D49"]
[WhiteElo "2056"]
[BlackElo "1946"]
[PlyCount "45"]
[EventDate "2009.05.19"]
[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 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 axb5 12. exf6 gxf6 13. Nxd4 Qb6 14. Be3 Bb4+ 15. Kf1 Bc5 16. Nxb5 Rg8 17. Rg1 Bxe3 18. fxe3 Ne5 19. Be2 Rg5 20. Qd6 Rf5+ 21. Ke1 Nf3+ 22. gxf3 Rxb5 23. Rg8# 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.05.26"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Aalbers, Klaas"]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "2056"]
[BlackElo "1886"]
[PlyCount "138"]
[EventDate "2009.05.19"]
[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 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 5. Qh5+ g6 6. Nxg6 Nf6 7. Qe5+ Be7 8. Nxh8 dxc4 9. Qb5+ Nc6 10. Qxc4 Qd5 11. Qxd5 Nxd5 12. 0-0 Be6 13. Nc3 Nxc3 14. dxc3 0-0-0 15. Re1 Rxh8 16. Rxe4 Bd5 17. Re1 Rg8 18. g3 Bd6 19. f4 h5 20. Be3 Ne7 21. Rad1 Bf3 22. Rxd6 cxd6 23. Bxa7 Nd5 24. Kf2 Bg4 25. c4 Nb4 26. a3 Nxc2 27. Re7 Rg6 28. Bb6 Re6 29. Rxe6 Bxe6 30. c5 Kd7 31. cxd6 Kxd6 32. Bd8 Nd4 33. Bf6 Nf5 34. h3 Nh6 35. Bg7 Nf7 36. h4 Bg4 37. Ke3 Kd5 38. Bc3 Nd6 39. b3 Nf5+ 40. Kf2 Bd1 41. Bd2 Bxb3 42. Bb4 Bd1 43. Bf8 Bg4 44. Bb4 Ke4 45. Bc5 Bh3 46. Bb6 Nh6 47. Bc5 b5 48. Bf8 Ng4+ 49. Ke2 Bg2 50. Bc5 Bf3+ 51. Kf1 Kf5 52. Bd4 Bc6 53. Ke2 Nh6 54. Bg7 Nf7 55. Bf8 Kg4 56. Kf2 Bd5 57. Ke3 Kxg3 58. f5 Kxh4 59. Kf4 Kh3 60. Be7 h4 61. Bf6 Bc4 62. Be7 Bd3 63. Bf6 Nd6 64. Bxh4 Kxh4 65. f6 Nf7 66. Ke3 Bc4 67. Kd4 Be6 68. Kc5 Bd7 69. Kb4 Kg5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2009.05.19"]
[Round "1"]
[White "Heijboer, Herman"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "A03"]
[BlackElo "2056"]
[PlyCount "126"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 Bf5 4. b3 e6 5. Bb2 c6 6. Be2 Nbd7 7. 0-0 Bd6 8. a4 a5 9. Nd4 Bg6 10. Ba3 Qc7 11. Bxd6 Qxd6 12. c4 0-0 13. Nc3 dxc4 14. bxc4 e5 15. fxe5 Nxe5 16. Nf5 Qd7 17. g4 Bxf5 18. gxf5 Nd3 19. Bxd3 Qxd3 20. Qe2 Rad8 21. Qxd3 Rxd3 22. Rf2 Rfd8 23. Ra2 Ng4 24. Re2 Ne5 25. Ne4 Nxc4 26. Nc5 Rxd2 27. Nxb7 Rxa2 28. Rxa2 Rd1+ 29. Kf2 Rc1 30. Ke2 Rc3 31. Kf2 Kf8 32. e4 Ke7 33. e5 Nxe5 34. Nxa5 Kd7 35. Kg2 Nd3 36. Kf1 Kc7 37. Rd2 Kb6 38. Nc4+ Rxc4 39. Rxd3 Rxa4 40. Rf3 Rh4 41. h3 Rh6 42. Ke2 Rf6 43. Kd2 g6 44. Rb3+ Kc5 45. fxg6 hxg6 46. Rb7 Kc4 47. Re7 Rd6+ 48. Kc2 f5 49. Rf7 Kd4 50. h4 Ke4 51. h5 gxh5 52. Rh7 Rf6 53. Rxh5 Kf3 54. Kd2 c5 55. Ke1 c4 56. Rh3+ Ke4 57. Rh8 f4 58. Re8+ Kd3 59. Rd8+ Kc2 60. Kf2 f3 61. Rd7 c3 62. Rd8 Kc1 63. Rd7 c2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.07.01"]
[Round "7"]
[White "Leeuwenburgh, Evert"]
[Black "Van den Berg, Ad"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2000"]
[BlackElo "2194"]
[PlyCount "94"]
[EventDate "2008.05.20"]
[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 d6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 c6 7. Nf3 Nbd7 8. 0-0-0 Kc7 9. e3 Bb4 10. Bxf6 Nxf6 11. Nxe5 Bxc3 12. bxc3 Ne4 13. Rd4 Nxf2 14. Rg1 f6 15. Rf4 Re8 16. Nxc6 bxc6 17. Rxf2 Rxe3 18. Kd2 Re5 19. Bd3 Ba6 20. Kc2 h6 21. Rgf1 Ra5 22. Kc1 Rd8 23. Rd1 Rc5 24. Rf4 Rg5 25. g3 Rh5 26. Rd2 Re5 27. Rd4 Rde8 28. Kc2 R8e7 29. Bf1 Bc8 30. Bg2 Re2 31. Kb3 R7e5 32. Ka4 Be6 33. Bf1 Rxd2 34. Rxd2 Re3 35. Kb4 Re1 36. Bg2 Re5 37. Bf1 f5 38. c5 Re4+ 39. Ka5 Bc4 40. Bh3 g6 41. Rd6 Bb5 42. Rd4 Re2 43. c4 Rxa2+ 44. Kb4 Rb2+ 45. Kc3 Rxh2 46. Rh4 Ba4 47. Rxh6 Bd1 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.24"]
[Round "6"]
[White "Compagnie, Luc G"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2188"]
[BlackElo "2000"]
[PlyCount "58"]
[EventDate "2008.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. 0-0 Be7 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 Nf6 10. Qa4+ Qd7 11. Qb3 c6 12. Nc3 0-0 13. Bf4 Qe6 14. Qa4 a5 15. a3 Ra6 16. e4 b5 17. Qc2 Re8 18. Ne2 c5 19. Be3 Bb7 20. f3 Qc8 21. Rfc1 c4 22. a4 Bc5 23. Nd4 Nd5 24. Bf2 Nb4 25. Qc3 Nd3 26. axb5 Rd6 27. Qxc4 Nxc1 28. Rxc1 Bxd4 29. Bxd4 Rxd4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.17"]
[Round "5"]
[White "Van der Maat, Niek"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1856"]
[BlackElo "2000"]
[PlyCount "80"]
[EventDate "2008.05.20"]
[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 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 Be7 9. 0-0-0 0-0 10. h4 cxd4 11. Nxd4 Nxd4 12. Bxd4 f5 13. h5 Nc5 14. g4 fxg4 15. Rg1 Rxf4 16. Bxc5 Bxc5 17. Qxf4 Bxg1 18. Bd3 Qb6 19. Qxg4 Be3+ 20. Kb1 Qd8 21. Qf3 Bh6 22. Rf1 Qe7 23. Ne2 Bd7 24. Nd4 g6 25. hxg6 hxg6 26. Qh3 Qg5 27. Nxe6 Qh5 28. Qxh5 gxh5 29. Nd4 Bg4 30. Bf5 Rf8 31. e6 Bg5 32. Rg1 Be3 33. e7 Bxg1 34. exf8Q+ Kxf8 35. Bxg4 hxg4 36. Nf5 Bf2 37. Kc1 Kf7 38. Kd2 Kf6 39. Nd6 Bc5 40. Nxb7 g3 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.10"]
[Round "4"]
[White "Leeuwenburgh, Evert"]
[Black "Jonk, Geert Jan"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2000"]
[BlackElo "1856"]
[PlyCount "82"]
[EventDate "2008.05.20"]
[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. e4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Be3 Qc7 6. Nc3 a6 7. a3 Nf6 8. Be2 b5 9. f3 Nxd4 10. Qxd4 Bb7 11. Rd1 Rc8 12. 0-0 Bc5 13. Qxc5 Qxc5 14. Bxc5 Rxc5 15. Rd2 Ke7 16. Nd1 d5 17. e5 Nd7 18. f4 g5 19. fxg5 Rg8 20. h4 h6 21. Bh5 Nxe5 22. Rdf2 hxg5 23. Rxf7+ Nxf7 24. Rxf7+ Kd6 25. Rxb7 Rxc2 26. Rb6+ Kc5 27. Rxe6 gxh4 28. Bf3 h3 29. b4+ Kd4 30. Ne3 Rc1+ 31. Kh2 hxg2 32. Bxg2 Rh8+ 33. Kg3 Rc3 34. Kf2 Rh2 35. Nf5+ Kd3 36. Kg3 Rh5 37. Kg4 Rxf5 38. Kxf5 Rxa3 39. Bxd5 Ra4 40. Re4 Kc3 41. Bb7 Rxb4 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.06.03"]
[Round "3"]
[White "Wantola, Ivo"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "2237"]
[BlackElo "2000"]
[PlyCount "71"]
[EventDate "2008.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. Bg5 Be7 6. e3 Nbd7 7. Qc2 0-0 8. Rd1 b6 9. Bd3 h6 10. Bh4 Bb7 11. 0-0 dxc4 12. Bxc4 Nd5 13. Bxe7 Qxe7 14. e4 Nxc3 15. Qxc3 c5 16. d5 exd5 17. exd5 Qd6 18. Nh4 Qf6 19. Qxf6 Nxf6 20. Nf5 Rad8 21. d6 a6 22. Rfe1 b5 23. Re7 Rd7 24. Bd5 Bxd5 25. Rxd5 Rfd8 26. Rxc5 g6 27. Rxd7 Rxd7 28. Ne7+ Kf8 29. Rc6 Ne8 30. Nc8 a5 31. Kf1 f6 32. Ke2 Kf7 33. Ke3 Ke6 34. Kd4 Rb7 35. Kc5 Kd7 36. Nb6+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.27"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Van den Bosse, Bart"]
[Result "1-0"]
[ECO "B74"]
[WhiteElo "2000"]
[BlackElo "1696"]
[PlyCount "55"]
[EventDate "2008.05.20"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Nb3 Be6 10. f3 Rc8 11. Qd2 Re8 12. Rfd1 Nd7 13. Bf1 a6 14. Qf2 Nb4 15. Nd4 Bc4 16. a3 Bxf1 17. axb4 Bc4 18. Qd2 Nb6 19. b3 Be6 20. Nce2 d5 21. Ra5 dxe4 22. Nxe6 Qxd2 23. Rxd2 exf3 24. gxf3 fxe6 25. Bxb6 Bh6 26. f4 e5 27. Rxe5 Rc6 28. Be3 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2008.05.20"]
[Round "1"]
[White "Van Gunsteren, Lex"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1642"]
[BlackElo "2000"]
[PlyCount "58"]
[EventDate "2008.05.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Be2 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 Nbd7 8. d3 c6 9. h3 h6 10. Kh2 Bd6 11. Nbd2 Qc7 12. Qe1 Rae8 13. g4 Bxg4 14. Qg3 Bxf3 15. Nxf3 Kh8 16. Rg1 Rg8 17. Ne5 Bxe5 18. fxe5 Nh7 19. Raf1 f5 20. Bh5 Re7 21. Bg6 Ndf8 22. Rf4 Nxg6 23. Qxg6 Nf8 24. Qg2 g5 25. Rh4 Rh7 26. d4 Qf7 27. Bc1 gxh4 28. Qxg8+ Qxg8 29. Rxg8+ Kxg8 0-1

[Event "Haarlem op"]
[Site "Haarlem"]
[Date "2007.06.30"]
[Round "4"]
[White "Leeuwenburgh, Evert"]
[Black "Van Zutphen, Jimmy"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "2210"]
[PlyCount "126"]
[EventDate "2007.06.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Bf4 Nf6 5. e3 c6 6. Nf3 Bd6 7. Bxd6 Qxd6 8. Qb3 Qc7 9. cxd5 exd5 10. Be2 Nbd7 11. 0-0 0-0 12. Rac1 Qb6 13. Qa3 Rfe8 14. b4 Ne4 15. Na4 Qc7 16. b5 Bg4 17. Rfd1 Re6 18. Nc3 Qd8 19. Qb2 Rh6 20. g3 Qf6 21. Nxe4 dxe4 22. Ne5 Bxe2 23. Qxe2 Nxe5 24. dxe5 Qxe5 25. bxc6 bxc6 26. Rd7 Re6 27. Qa6 h5 28. Rxc6 Qf6 29. Rxe6 fxe6 30. Rxa7 Rf8 31. Qe2 h4 32. h3 hxg3 33. fxg3 Rb8 34. Rd7 Qe5 35. Kg2 Qf6 36. Rd2 Rf8 37. Rb2 Qe5 38. Qb5 Qd6 39. a4 Qd1 40. Rf2 Rxf2+ 41. Kxf2 Qf3+ 42. Ke1 Qxe3+ 43. Kd1 Qf3+ 44. Qe2 Qxg3 45. Qxe4 Qxh3 46. Qa8+ Kf7 47. Qb7+ Kf6 48. Qb2+ e5 49. Qb6+ Ke7 50. Qc5+ Kf6 51. Qf2+ Kg6 52. Qb6+ Kh5 53. a5 Qd3+ 54. Kc1 e4 55. Qc5+ g5 56. Qf5 Kh4 57. a6 Qc3+ 58. Kb1 Qd3+ 59. Kc1 Qxa6 60. Qxe4+ g4 61. Qh1+ Kg3 62. Qg1+ Kf3 63. Qh1+ Kf4 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.26"]
[Round "7"]
[White "Leeuwenburgh, Evert"]
[Black "Kamps, JW."]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1924"]
[BlackElo "2015"]
[PlyCount "98"]
[EventDate "2007.05.15"]
[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 c5 3. d5 e5 4. Nc3 d6 5. e4 Nbd7 6. Be2 Be7 7. Nf3 0-0 8. 0-0 Ne8 9. Ne1 Bg5 10. Nd3 g6 11. g3 Ng7 12. Bxg5 Qxg5 13. Qc1 Qe7 14. Qh6 f5 15. f3 Nf6 16. Qg5 Nxd5 17. Qxe7 Nxe7 18. f4 Nc6 19. fxe5 Nxe5 20. Nxe5 dxe5 21. Nd5 Be6 22. Rad1 Rad8 23. exf5 Bxd5 24. Rxd5 Rxd5 25. cxd5 Nxf5 26. Rc1 b6 27. a3 Kg7 28. b4 Rc8 29. Ba6 Rc7 30. Kf2 Kf6 31. Bd3 Ke7 32. g4 Nd4 33. Ke3 Kd6 34. Rf1 Kxd5 35. Rf6 cxb4 36. Be4+ Kc5 37. axb4+ Kxb4 38. h4 Rg7 39. Bd3 Nb5 40. Ke4 Rd7 41. Bxb5 Kxb5 42. Kxe5 a5 43. Rf8 a4 44. Ra8 Kb4 45. Kf6 a3 46. Kg5 b5 47. h5 gxh5 48. gxh5 Kb3 49. h6 a2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.19"]
[Round "6"]
[White "Lehmann, Stefan"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1595"]
[BlackElo "1924"]
[PlyCount "78"]
[EventDate "2007.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nc4 13. Nbd2 Nxd2 14. Bxd2 c4 15. Nh2 Bd7 16. Re3 Kh8 17. g4 g6 18. Rg3 Rg8 19. Rg2 Ne8 20. f4 exf4 21. Bxf4 Bf6 22. Nf3 Ng7 23. Qd2 Rae8 24. Re1 Bc8 25. Qf2 Qd8 26. e5 dxe5 27. Bxe5 Bxe5 28. Nxe5 Rgf8 29. Qd4 f6 30. Nf3 Bb7 31. Be4 Qd6 32. Kf2 Kg8 33. Re2 f5 34. gxf5 Nxf5 35. Qd2 Nh4 36. Rg3 Rxe4 37. Rxe4 Nxf3 38. Rxf3 Qh2+ 39. Ke3 Rxf3+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.12"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Hortensius, Lisa"]
[Result "1/2-1/2"]
[ECO "B74"]
[WhiteElo "1924"]
[BlackElo "1861"]
[PlyCount "106"]
[EventDate "2007.05.15"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nb3 Bg7 7. Be2 0-0 8. 0-0 a6 9. a4 d6 10. Be3 Be6 11. f4 Rc8 12. Bf3 Bxb3 13. cxb3 Nd7 14. Rf2 Nc5 15. Rd2 Qa5 16. Rc1 Nb4 17. Ne2 Ncd3 18. Rb1 Nc5 19. h3 Rc7 20. Nc3 Rfc8 21. Kh2 Ne6 22. Nd5 Nxd5 23. Rxd5 Nc5 24. e5 dxe5 25. Rd8+ Bf8 26. fxe5 Rxd8 27. Qxd8 Ne6 28. Qd5 Qxd5 29. Bxd5 Bg7 30. Bb6 Bxe5+ 31. Kh1 Rd7 32. Bc4 Nc7 33. b4 Nd5 34. Bc5 Nf6 35. Re1 Bd6 36. Bxd6 exd6 37. b5 a5 38. b6 d5 39. Bb5 Rd6 40. Rc1 Rxb6 41. Rc8+ Kg7 42. Ra8 Rd6 43. Rxa5 d4 44. Bd3 Nd7 45. Rb5 Kf6 46. a5 Ne5 47. Be2 d3 48. Bd1 Rc6 49. Kh2 Nc4 50. Rxb7 Nxa5 51. Rd7 Nc4 52. Rxd3 Nxb2 53. Rf3+ Kg7 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.06.05"]
[Round "4"]
[White "Van der Linden, Jeroen"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2036"]
[BlackElo "1924"]
[PlyCount "81"]
[EventDate "2007.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. 0-0 Be7 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 Nf6 10. Qa4+ c6 11. Nc3 0-0 12. e4 Be6 13. Be3 Ng4 14. Bf4 b5 15. Qc2 Bc4 16. Rfe1 Bc5 17. Nd1 Qb6 18. h3 Bb4 19. Nc3 Nf6 20. e5 Nd5 21. Nxd5 Bxd5 22. Rec1 Bxg2 23. Kxg2 Rac8 24. a3 Be7 25. b4 c5 26. Qe4 c4 27. Be3 Qc7 28. a4 a6 29. axb5 axb5 30. Ra7 Qd8 31. Qg4 Bxb4 32. Rd1 Qe8 33. Rdd7 Bc5 34. Bxc5 Rxc5 35. e6 Kh8 36. Rxf7 Rxf7 37. Rxf7 Qg8 38. Qf3 Rc8 39. e7 c3 40. Rf8 h6 41. Qf7 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.29"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "Landsheer, Jos"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1924"]
[BlackElo "1699"]
[PlyCount "45"]
[EventDate "2007.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Nxc3 9. bxc3 d5 10. cxb4 dxc4 11. Re1+ Ne7 12. Qe2 Be6 13. Bg5 Qd5 14. Rac1 h6 15. Bxe7 Kxe7 16. Rxc4 Kd8 17. Rc5 Qxa2 18. Qe5 c6 19. Qxg7 Kc7 20. Qe5+ Kb6 21. Ra5 Qc2 22. Rc5 Qa2 23. Rb5+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.22"]
[Round "2"]
[White "Coene, Igor"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2108"]
[BlackElo "1924"]
[PlyCount "65"]
[EventDate "2007.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. d4 b6 7. Nc3 Bb7 8. Bf4 c6 9. Rc1 Nbd7 10. a3 a5 11. Re1 dxc4 12. Nd2 Nd5 13. Nxc4 Nxf4 14. gxf4 b5 15. Ne5 Nxe5 16. fxe5 Qb6 17. Ne4 Rad8 18. e3 Rd7 19. Qh5 Qd8 20. Nc5 Bxc5 21. Rxc5 Rc7 22. Rec1 Qd7 23. h4 Rfc8 24. Qg5 h6 25. Qg4 Kf8 26. Be4 f5 27. exf6 gxf6 28. Bg6 Qg7 29. h5 Qe7 30. Qf4 Kg7 31. Kh2 Rd7 32. Rg1 Qd6 33. Be8+ 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2007.05.15"]
[Round "1"]
[White "Leeuwenburgh, Evert"]
[Black "De Waard, Ad"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "1924"]
[BlackElo "1411"]
[PlyCount "45"]
[EventDate "2007.05.15"]
[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. f4 Bg7 5. Nf3 c5 6. d5 a6 7. a4 0-0 8. Be2 Nfd7 9. 0-0 e5 10. dxe6 Nf6 11. exf7+ Kh8 12. e5 dxe5 13. Qxd8 Rxd8 14. fxe5 Ng4 15. h3 Nh6 16. Bc4 Rd7 17. e6 Re7 18. Ne5 Nc6 19. Nxc6 Bxe6 20. Nxe7 Bxc4 21. f8Q+ Bxf8 22. Rxf8+ Rxf8 23. Bxh6 1-0

[Event "Leiden Noteboom Memorial 67th"]
[Site "Leiden"]
[Date "2007.02.16"]
[Round "1"]
[White "Nijboer, Friso"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "2638"]
[PlyCount "109"]
[EventDate "2007.02.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 116 Extra"]
[Source "ChessBase"]
[SourceDate "2007.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2007.03.07"]
[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. a3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Bd7 14. b4 Rac8 15. Ra2 Nc4 16. Nxc4 bxc4 17. Bb2 c3 18. Ba1 Bg4 19. d5 Qc4 20. Bb1 Bxf3 21. Qxf3 Qb3 22. Qd3 Rc7 23. Qc2 Qc4 24. Qe2 Qb3 25. Bd3 c2 26. Rxc2 Rxc2 27. Qxc2 Qxa3 28. Qc3 Qa4 29. Qc7 Qxb4 30. Bc3 Qb8 31. Qa5 Qa7 32. Qxa6 Qxa6 33. Bxa6 Ra8 34. Bd3 Nd7 35. Bb5 Nc5 36. f3 Ra2 37. Rb1 g6 38. Be1 Kg7 39. Bf2 Rc2 40. Kf1 Bg5 41. h4 Rc1+ 42. Rxc1 Bxc1 43. Ke2 Ba3 44. Be1 f5 45. exf5 gxf5 46. g4 f4 47. Bd3 h6 48. Bf5 Kf6 49. h5 Bb2 50. Bh4+ Kf7 51. Bg6+ Kf8 52. Bd8 Ba1 53. g5 hxg5 54. h6 Nd7 55. Bf5 1-0

[Event "Haarlem Nova College op"]
[Site "Haarlem"]
[Date "2006.07.08"]
[Round "2"]
[White "Milov, Leonid"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2504"]
[BlackElo "1970"]
[PlyCount "61"]
[EventDate "2006.07.07"]
[EventType "swiss"]
[EventRounds "6"]
[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. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 d6 8. 0-0 Bd7 9. b4 Bxd4 10. cxd4 Nxb4 11. Nc3 0-0 12. Rb1 Nbc6 13. Rxb7 Rfc8 14. Ba6 Nd8 15. Rb3 Rcb8 16. d5 c5 17. dxc6 Bxc6 18. Nd5 Nxd5 19. exd5 Bd7 20. Re1 h6 21. Bd4 Qh4 22. Rg3 g6 23. Rge3 Nb7 24. Re7 Nc5 25. Bxc5 Ba4 26. Qf3 Qxe7 27. Rxe7 Rb1+ 28. Bf1 Rf8 29. Bd4 Bb5 30. h3 Rxf1+ 31. Kh2 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.27"]
[Round "7"]
[White "Weiland, Harro"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C87"]
[WhiteElo "1864"]
[BlackElo "1970"]
[PlyCount "121"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. Re1 d6 8. Nxd4 Bd7 9. Bxc6 bxc6 10. Qf3 0-0 11. Nf5 Bxf5 12. exf5 d5 13. Nc3 Qd7 14. Na4 Rfe8 15. Be3 d4 16. Red1 c5 17. b3 Qd5 18. Bg5 Qxf3 19. gxf3 Bd6 20. Bxf6 gxf6 21. Re1 Re5 22. Rxe5 fxe5 23. f6 Re8 24. Kh1 Re6 25. Rg1+ Kf8 26. Rg4 Rxf6 27. Kg2 Ke7 28. Nb2 Ke6 29. Nc4 Kf5 30. Kf1 Rg6 31. Rh4 h6 32. Ke2 Ke6 33. Kd3 Kd5 34. Rh5 f6 35. h3 Bf8 36. f4 Bg7 37. f5 e4+ 38. Ke2 Rg1 39. Rh4 Rg5 40. Rg4 h5 41. Rxg5 fxg5 42. f3 exf3+ 43. Kxf3 Bf6 44. Nd2 Ke5 45. Ne4 Be7 46. f6 Bxf6 47. Nxc5 Kf5 48. Nxa6 g4+ 49. hxg4+ hxg4+ 50. Kg2 Be5 51. Nc5 Bd6 52. b4 Ke5 53. Kg3 Kd5+ 54. Kxg4 Bxc5 55. bxc5 Kxc5 56. Kf3 Kb4 57. Ke4 c5 58. Kd5 Kb5 59. a4+ Kb4 60. a5 Kxa5 61. Kxc5 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.20"]
[Round "6"]
[White "Hoogenboom, Paul"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1629"]
[BlackElo "1970"]
[PlyCount "64"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Be7 5. Re1 0-0 6. c3 Nxe4 7. d3 d5 8. Bb5 Nd6 9. Bxc6 bxc6 10. Nxe5 Bb7 11. Bf4 c5 12. d4 c4 13. Na3 Ne4 14. Nc2 f6 15. Ng4 Bd6 16. Bxd6 Qxd6 17. f3 Ng5 18. Re3 Bc8 19. Nf2 Bf5 20. Qe2 Rab8 21. Na3 Qb6 22. Re7 Qxb2 23. Qxb2 Rxb2 24. Nd1 Rd2 25. Ne3 Bd3 26. Nxd5 Rb8 27. Nb4 a5 28. Nxd3 cxd3 29. Nc4 Rc2 30. Re3 d2 31. Nxd2 Rxd2 32. Rae1 Rbb2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.13"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Van Dorp, Teun"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1970"]
[BlackElo "1786"]
[PlyCount "105"]
[EventDate "2006.05.16"]
[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. e4 f5 3. exf5 exf5 4. Nf3 Nf6 5. Bd3 d6 6. 0-0 Be7 7. c4 0-0 8. Nc3 c6 9. Qc2 Nh5 10. Re1 g6 11. Bh6 Rf7 12. Re2 Na6 13. a3 Nc7 14. Rae1 Bf6 15. Qd2 Re7 16. d5 Rxe2 17. Rxe2 Bd7 18. g3 Be8 19. h4 Bf7 20. dxc6 bxc6 21. Bg5 Ne6 22. Bxf6 Qxf6 23. Bb1 Qd8 24. b4 a6 25. Re1 Rc8 26. Rd1 Qf6 27. Ne2 Rd8 28. Ba2 Kg7 29. Ned4 Nxd4 30. Nxd4 d5 31. c5 Be8 32. Re1 Bd7 33. Qg5 Qxg5 34. hxg5 Kf7 35. Kg2 Ng7 36. f4 Ne8 37. Rh1 Kg8 38. Re1 Ng7 39. Nf3 Rb8 40. Re7 Rd8 41. Ne5 Be8 42. Ra7 Ne6 43. Rxa6 Nd4 44. Kf2 Rc8 45. Ke3 Nb5 46. Nxc6 Nc3 47. Ne7+ Kf8 48. Nxc8 Nxa2 49. Rf6+ Kg7 50. Kd2 Bb5 51. Rd6 Bc4 52. Nb6 Bb3 53. c6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.06.06"]
[Round "4"]
[White "Termeulen, Albert"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2127"]
[BlackElo "1970"]
[PlyCount "115"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 b5 7. Bb3 d5 8. exd5 Nxd5 9. Ng5 Be6 10. Re1 Qd7 11. Nxe6 fxe6 12. Qh5+ Kd8 13. c4 bxc4 14. Bxc4 Kc8 15. Bd2 Kb7 16. Na3 Bd6 17. Rxe6 Nb6 18. Rae1 g6 19. Qe2 Rhf8 20. Bd3 Nb4 21. Be4+ N4d5 22. Bf3 Rad8 23. Nc4 Bc5 24. Na5+ Ka7 25. Nc6+ Kb7 26. b4 Bd6 27. Nxd8+ Rxd8 28. Qd3 Ka7 29. Qxd4 c6 30. a4 Nc7 31. Rxd6 Qxd6 32. Qxd6 Rxd6 33. Bf4 Rd7 34. Bxc6 Rf7 35. Be3 Rf6 36. a5 Rxc6 37. axb6+ Kb7 38. bxc7 Kxc7 39. g3 Kd6 40. Kg2 h5 41. Kf3 Ke5 42. Bc5+ Kf5 43. h3 a5 44. Ra1 axb4 45. Bxb4 Rc4 46. Ra5+ Kf6 47. Bd2 Rc6 48. Be3 Ke6 49. Rb5 Rc4 50. g4 hxg4+ 51. hxg4 Ra4 52. Kg3 Kf6 53. Rb6+ Kf7 54. Rc6 Ra5 55. Bd4 g5 56. Rf6+ Ke7 57. Rf5 Ra3+ 58. Be3 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.30"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "Roobol, Martin"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "1970"]
[BlackElo "2287"]
[PlyCount "126"]
[EventDate "2006.05.16"]
[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 g6 2. d4 Bg7 3. Bc4 c5 4. Nf3 cxd4 5. Nxd4 d6 6. 0-0 Nf6 7. Nc3 0-0 8. Bb3 Nc6 9. Be3 Ng4 10. Nxc6 bxc6 11. Qd2 Nxe3 12. Qxe3 Qb6 13. Qxb6 axb6 14. Nd1 b5 15. c3 Bd7 16. Ne3 Rfb8 17. a3 Ra7 18. Rad1 c5 19. Rd2 Bc6 20. Bd5 Be8 21. Bb3 b4 22. axb4 cxb4 23. c4 Ba4 24. Ra1 Rba8 25. Rxa4 Rxa4 26. Bxa4 Rxa4 27. Kf1 Ra2 28. Ke2 Bh6 29. Kd3 Ra1 30. Re2 Bxe3 31. Kxe3 Rc1 32. Kd3 Kf8 33. Rc2 Rd1+ 34. Rd2 Rc1 35. Rc2 Rg1 36. g3 Ke8 37. c5 dxc5 38. Rxc5 Rg2 39. Ke3 Rxh2 40. Rb5 h5 41. Rxb4 Rh1 42. Rc4 Rb1 43. Rc2 Kd7 44. Kd4 g5 45. f4 Rg1 46. Rh2 Rxg3 47. Rxh5 gxf4 48. Rf5 f6 49. e5 Rg5 50. e6+ Kxe6 51. Rxf4 Rb5 52. Rf2 f5 53. Kc4 Rb8 54. b4 Kf6 55. Kc5 e5 56. b5 f4 57. Kc6 Kf5 58. b6 e4 59. Kc7 Rxb6 60. Kxb6 e3 61. Ra2 f3 62. Kc5 e2 63. Ra1 f2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.23"]
[Round "2"]
[White "Van Vliet, Jeffrey"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2295"]
[BlackElo "1970"]
[PlyCount "122"]
[EventDate "2006.05.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 d5 4. exd5 Nxd5 5. Qe2 Nc6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 Nf6 9. c3 Be7 10. Qg3 0-0 11. h4 Qd7 12. Nd2 Qf5 13. Qf3 Qxf3 14. Nxf3 e4 15. dxe4 Nxe4 16. Bd5 Nd6 17. Bxc6 bxc6 18. 0-0 Rab8 19. Ne5 Rb5 20. Nxc6 Bxh4 21. Rb1 Bf6 22. a4 Rb6 23. Nb4 Rb7 24. Nd5 Bd8 25. b3 c6 26. Nf4 Bf6 27. Ba3 Rd8 28. Rfd1 Rbd7 29. c4 g6 30. Rd3 Nf5 31. Rbd1 Rxd3 32. Rxd3 Rxd3 33. Nxd3 Bc3 34. Bc5 a6 35. Kf1 f6 36. g4 Ng7 37. Bb4 Bd4 38. Bc5 Bc3 39. Nb4 Bxb4 40. Bxb4 Ne6 41. Bd6 Kf7 42. b4 Ke8 43. Ke2 Kd7 44. Bg3 f5 45. gxf5 gxf5 46. Be5 Nd8 47. Bc3 Ke6 48. Ke3 Nb7 49. f3 h5 50. Be1 Nd6 51. Kd4 Nb7 52. Bg3 Kd7 53. Ke5 Nd6 54. c5 Nc4+ 55. Kxf5 Nb2 56. Be5 Nd3 57. Bc3 Nc1 58. Kg5 Ne2 59. Be1 Nd4 60. Kf4 Ke6 61. Ke4 Nf5 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2006.05.16"]
[Round "1"]
[White "Leeuwenburgh, Evert"]
[Black "Zwaan, Gert Jan"]
[Result "1-0"]
[ECO "B74"]
[WhiteElo "1970"]
[BlackElo "1516"]
[PlyCount "67"]
[EventDate "2006.05.16"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 Nc6 9. Nb3 a6 10. a4 Bd7 11. a5 Ne5 12. f3 Bc6 13. Nd5 Nxd5 14. exd5 Be8 15. Qd2 Qc8 16. c3 Nc4 17. Bxc4 Qxc4 18. Ra3 Bb5 19. Re1 Qd3 20. Qxd3 Bxd3 21. Nd2 Rfe8 22. Rb3 Reb8 23. Bb6 Bf8 24. Bc7 Re8 25. Rxb7 Bf5 26. Nc4 Bc8 27. Rb4 Bf5 28. Nb6 Ra7 29. Bxd6 e5 30. Bxf8 Kxf8 31. g4 Bd7 32. c4 f6 33. Nxd7+ Rxd7 34. Rb6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.07.07"]
[Round "7"]
[White "Leeuwenburgh, Evert"]
[Black "Hellenberg, Jan Amerik"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1987"]
[BlackElo "1926"]
[PlyCount "64"]
[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 e6 2. d4 d5 3. e5 c5 4. dxc5 Bxc5 5. Bd3 Qb6 6. Qe2 Nc6 7. c3 a5 8. Nf3 f6 9. 0-0 fxe5 10. Nxe5 Nxe5 11. Qxe5 Nf6 12. Nd2 0-0 13. Nf3 Ng4 14. Qh5 Bxf2+ 15. Kh1 Nf6 16. Qe5 Bc5 17. Bf4 Bd7 18. Bg3 Rae8 19. a4 Bc6 20. Ng5 d4 21. Rab1 h6 22. b4 axb4 23. cxb4 Bxb4 24. Nxe6 Bxg2+ 25. Kxg2 Rxe6 26. Qf5 Qc6+ 27. Kg1 Bd2 28. Bf2 Ne4 29. Bxe4 Rxe4 30. Qxf8+ Kxf8 31. Be3+ Kg8 32. Bxd2 Re2 0-1

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.04"]
[Round "5"]
[White "De Haas, Piet"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C99"]
[WhiteElo "2171"]
[PlyCount "73"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[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. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 cxd4 14. cxd4 Nc6 15. Be3 exd4 16. Nxd4 Nxd4 17. Bxd4 Bc6 18. Rc1 Qb7 19. Ng3 g6 20. Qf3 Nd7 21. Nf5 Ne5 22. Qg3 Rfe8 23. Nh6+ Kg7 24. Nf5+ Kf8 25. f4 gxf5 26. exf5 Bf6 27. fxe5 Bxe5 28. Rxe5 Rxe5 29. Bxe5 dxe5 30. f6 Bd5 31. Qg7+ Ke8 32. Bf5 Qb6+ 33. Kh1 Qd6 34. Rc7 Kd8 35. Re7 Bxg2+ 36. Qxg2 Qxf6 37. Rd7+ 1-0

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.04"]
[Round "6"]
[White "Leeuwenburgh, Evert"]
[Black "Ten Have, Roland"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "39"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 Bb4 7. Bc4 Nxe4 8. Bxf7+ Kf8 9. 0-0 Nxc3 10. bxc3 Bxc3 11. Bb3 Bxa1 12. Qd5 Qf6 13. Ba3+ Ke8 14. Rxa1 Kd8 15. Rd1 Re8 16. Bd6 Nd4 17. Nxd4 exd4 18. Qc5 Re2 19. Bc7+ Ke8 20. Qh5+ 1-0

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.03"]
[Round "4"]
[White "Leeuwenburgh, Evert"]
[Black "De Saegher, Chris"]
[Result "1-0"]
[ECO "E86"]
[BlackElo "2207"]
[PlyCount "77"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Nbd7 9. Rd1 Re8 10. d5 cxd5 11. cxd5 a6 12. Nc1 Nh5 13. Nd3 f5 14. Be2 f4 15. Bf2 Bf6 16. g4 fxg3 17. hxg3 Rf8 18. f4 Bg7 19. Bxh5 gxh5 20. f5 Nf6 21. Be3 b5 22. Nf2 Bd7 23. Rh4 Rc8 24. Kf1 a5 25. Kg2 b4 26. Ne2 Rf7 27. Rdh1 Bb5 28. Ng1 Qf8 29. Nf3 h6 30. Rxh5 Nxh5 31. Rxh5 Rfc7 32. Bxh6 Be2 33. Rg5 Bxf3+ 34. Kxf3 Rf7 35. Ng4 Rcc7 36. Qh2 Qc8 37. Qh5 Qa6 38. Bxg7 Qf1+ 39. Nf2 1-0

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.03"]
[Round "3"]
[White "Mentink, AJV"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "106"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 Qe7 6. Nc3 Nf6 7. fxe5 Bxe5 8. Nf3 Bd6 9. 0-0 0-0 10. Ne2 Ne5 11. Nf4 c6 12. Be2 Bf5 13. a4 Rfe8 14. Nd4 Bg6 15. Nxg6 hxg6 16. Qe1 Rad8 17. Qh4 Ne4 18. Qxe7 Rxe7 19. Rad1 f6 20. Bf3 Ng5 21. Ne2 Kf7 22. Nf4 Rh8 23. Be2 Ree8 24. c4 Ne4 25. d4 Nd7 26. cxd5 Bxf4 27. Rxf4 cxd5 28. Bb5 Rd8 29. Rc1 g5 30. Rxe4 dxe4 31. Rc7 Ke6 32. Rxb7 Ne5 33. dxe5 Rd1+ 34. Bf1 fxe5 35. Rxg7 Rf8 36. h3 Rfxf1+ 37. Kh2 Kf6 38. Rxa7 Rd2 39. Ba3 Rff2 40. Be7+ Ke6 41. Bb4 Rxg2+ 42. Kh1 Rc2 43. Re7+ Kf6 44. Re8 Rge2 45. Rf8+ Kg7 46. Kg1 Rxe3 47. Rb8 Rg3+ 48. Kf1 Rxh3 49. Kg1 Rd3 50. Kf1 Rb2 51. Rb7+ Kg6 52. Rb6+ Kf5 53. Be7 Rd1# 0-1

[Event "Haarlem Nova College op 3rd"]
[Site "Haarlem"]
[Date "2004.07.02"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Blees, Albert"]
[Result "0-1"]
[ECO "B42"]
[BlackElo "2400"]
[PlyCount "66"]
[EventDate "2004.07.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Be3 d6 8. c4 g6 9. Nc3 Bg7 10. f3 0-0 11. Qd2 Nbd7 12. b3 Re8 13. Rad1 b6 14. Bb1 Bb7 15. Nde2 Bf8 16. g4 Ne5 17. Ng3 Rad8 18. g5 Nfd7 19. Qe2 Nc5 20. f4 Nc6 21. Qg4 Bg7 22. Nce2 b5 23. Qh4 bxc4 24. bxc4 Qa5 25. f5 Ne5 26. Bd4 Qa4 27. Bxe5 dxe5 28. Rxd8 Rxd8 29. f6 Bf8 30. Nf5 exf5 31. Rf3 Qd1+ 32. Kf2 Nxe4+ 33. Bxe4 Bc5+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.30"]
[Round "6"]
[White "Bakker, Joop"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C22"]
[WhiteElo "1879"]
[BlackElo "1987"]
[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. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. Bd2 Qf6 6. Bc3 Nge7 7. Nf3 d6 8. Bc4 0-0 9. 0-0 Bxc3 10. Nxc3 Bg4 11. Nd5 Nxd5 12. exd5 Bxf3 13. Qxf3 Qxf3 14. gxf3 Nd4 15. Kg2 Nxc2 16. Rac1 Nd4 17. Rfd1 c5 18. dxc6 Nxc6 19. Rxd6 Rad8 20. Rcd1 Rxd6 21. Rxd6 Rd8 22. Rxd8+ Nxd8 23. f4 Kf8 24. Kf3 Ke7 25. Ke4 Kd6 26. Bd5 b6 27. f5 f6 28. Kd4 a5 29. a4 g5 30. fxg6 hxg6 31. f4 g5 32. fxg5 fxg5 33. b3 Ne6+ 34. Bxe6 Kxe6 35. Ke4 Kf6 36. Kd5 Kf5 37. Kc6 Kg4 38. Kxb6 Kh3 39. Kxa5 Kxh2 40. b4 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.23"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Faydi, Jonathan J"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "1987"]
[BlackElo "1955"]
[PlyCount "67"]
[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 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 a6 10. e4 c5 11. d5 Qc7 12. dxe6 fxe6 13. Re1 e5 14. Bg5 c4 15. Bc2 Bc5 16. h3 0-0 17. Qe2 Rae8 18. Be3 Bxe3 19. Qxe3 Nc5 20. Rad1 Rd8 21. b4 Ne6 22. a4 Bc6 23. axb5 axb5 24. Nd5 Bxd5 25. exd5 Nd4 26. Nxd4 exd4 27. Rxd4 Qd6 28. Bf5 Qxb4 29. Be6+ Kh8 30. Ra1 Qc5 31. Ra6 Rd6 32. Rxd6 Qxd6 33. Rd1 Re8 34. Re1 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.09"]
[Round "4"]
[White "Leeuwenburgh, Evert"]
[Black "Vermeend, Joost"]
[Result "0-1"]
[ECO "D63"]
[WhiteElo "1987"]
[BlackElo "1857"]
[PlyCount "112"]
[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 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 b6 8. Ne5 Bb7 9. cxd5 exd5 10. Nxd7 Nxd7 11. Bxe7 Qxe7 12. Bd3 c5 13. 0-0 c4 14. Bb1 a6 15. Re1 f5 16. Qf3 Qf7 17. Qf4 g6 18. Ne2 Nf6 19. Ng3 Ne4 20. Bxe4 fxe4 21. Qxf7+ Rxf7 22. h4 Kg7 23. Ne2 h6 24. Rf1 Re8 25. Kh2 b5 26. a3 a5 27. Kg3 g5 28. hxg5 hxg5 29. f4 exf3 30. Rxf3 Rxf3+ 31. Kxf3 Kg6 32. Ng3 Ra8 33. Ra1 Ra6 34. Ke2 Bc8 35. Kd2 Rf6 36. Rf1 Rxf1 37. Nxf1 Kf5 38. Ng3+ Kg4 39. Ne2 b4 40. axb4 axb4 41. Ke1 Bf5 42. Kf2 Bg6 43. Nc1 c3 44. bxc3 bxc3 45. Na2 c2 46. Nc1 Be4 47. Na2 Bd3 48. g3 Bc4 49. Nc1 Kf5 50. Kf3 g4+ 51. Kg2 Ke4 52. Kf2 Bb5 53. Na2 Kd3 54. Nb4+ Kd2 55. Nxc2 Kxc2 56. e4 dxe4 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.06.02"]
[Round "3"]
[White "Geertsma, Folkert Jan"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "1931"]
[BlackElo "1987"]
[PlyCount "124"]
[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. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. d3 Be7 7. Bg2 Be6 8. 0-0 0-0 9. a3 a5 10. Bd2 Nb6 11. Qc1 f6 12. Be3 Nd4 13. Bxd4 exd4 14. Ne4 Bd5 15. Ned2 a4 16. Qc2 c5 17. Nh4 Qd7 18. Rac1 Bxg2 19. Nxg2 Nd5 20. e4 dxe3 21. fxe3 b5 22. Ne4 Rfc8 23. Qf2 Rc6 24. Qf5 Qxf5 25. Rxf5 Rd8 26. Kf2 g6 27. Rf3 f5 28. Nd2 Nf6 29. Ke2 Ng4 30. e4 Nxh2 31. Re3 Ng4 32. Rf3 Bf6 33. exf5 Bxb2 34. Rb1 Bxa3 35. Rxb5 Bb4 36. fxg6 hxg6 37. Rb7 Ne5 38. Re3 Rd7 39. Rb8+ Kf7 40. Rxe5 Bxd2 41. Kxd2 Ra7 42. Ree8 a3 43. Rf8+ Kg7 44. Rg8+ Kh6 45. Ra8 Rca6 46. Rxa7 Rxa7 47. Rh8+ Kg5 48. Rh1 Kg4 49. Nf4 Ra6 50. Ne2 g5 51. Ra1 Kf3 52. Rf1+ Kg2 53. Rg1+ Kf2 54. Ra1 g4 55. Ra2 Ra8 56. Nc3 Kxg3 57. Ke3 Re8+ 58. Ne4+ Kh3 59. Kf2 g3+ 60. Nxg3 Rf8+ 61. Ke2 Kxg3 62. Rxa3 Re8+ 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.05.26"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Irwin, Mark"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "1987"]
[BlackElo "2214"]
[PlyCount "81"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. 0-0 d6 8. Be3 Nf6 9. N1d2 Nbd7 10. f4 Qc7 11. Qe2 b6 12. c4 Bb7 13. Rac1 h5 14. h3 g6 15. Qf2 Rc8 16. Bb1 h4 17. Rfe1 Nh5 18. Nf1 e5 19. fxe5 dxe5 20. Red1 a5 21. Rxd7 Qxd7 22. Bxb6 a4 23. Nc5 Bxc5 24. Bxc5 Nf4 25. Be3 Nd3 26. Bxd3 Qxd3 27. Qf6 Rh5 28. Bg5 Rxg5 29. Qxg5 Qxe4 30. Rd1 Kf8 31. Rd7 Kg7 32. Ne3 Re8 33. Nd5 Qd4+ 34. Kh2 Bxd5 35. cxd5 Qxb2 36. Qxh4 e4 37. Qf4 Qe5 38. Rxf7+ Kg8 39. Rf8+ Kg7 40. Rf7+ Kg8 41. Rf8+ 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2004.05.19"]
[Round "1"]
[White "Van Ketel, Raoul"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2247"]
[BlackElo "1987"]
[PlyCount "85"]
[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 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 h6 8. Bh4 c6 9. Qc2 Re8 10. Nge2 Nbd7 11. 0-0-0 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. g4 Nf6 15. h3 Be6 16. Nf4 Rad8 17. Rhg1 g5 18. Nfe2 b5 19. Ng3 b4 20. Na4 b3 21. axb3 Qb4 22. Nc5 Rb8 23. Ngxe4 Nxe4 24. Nxe4 Bxb3 25. Nf6+ Kg7 26. Nxe8+ Rxe8 27. Qc3 Qa4 28. Rde1 Kg8 29. Kd2 Rb8 30. Ra1 Ba2 31. Rgc1 Rb3 32. Qc5 Rxb2+ 33. Rc2 Rxc2+ 34. Qxc2 Qb4+ 35. Qc3 Qxc3+ 36. Kxc3 Bd5 37. Kd3 Bg2 38. e4 Bxh3 39. f3 a6 40. Ke2 h5 41. Rg1 h4 42. Kf2 Kf8 43. Rh1 1-0

[Event "Leiden Noteboom Memorial"]
[Site "Leiden"]
[Date "2003.03.01"]
[Round "2"]
[White "De Rover, Yong Hoon"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2196"]
[PlyCount "94"]
[EventDate "2003.03.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 093 Extra"]
[Source "ChessBase"]
[SourceDate "2003.05.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.05.09"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 Be7 5. d3 0-0 6. Nbd2 c5 7. e4 dxe4 8. dxe4 Nc6 9. c3 e5 10. Nc4 Qxd1 11. Rxd1 Bg4 12. Ne3 Rfd8 13. Re1 Be6 14. Nf5 Bf8 15. Bg5 Rd3 16. N3h4 Ne8 17. Bc1 Rad8 18. Ne3 Nc7 19. f4 f6 20. Nf3 b5 21. fxe5 Nxe5 22. Nxe5 fxe5 23. a4 c4 24. Bf1 R3d7 25. axb5 Bc5 26. Kg2 Bxe3 27. Bxe3 Nxb5 28. Ra5 Rb7 29. Rea1 Rdd7 30. Kg1 h6 31. Be2 Nd4 32. Bd1 Rxb2 33. Rxe5 Ne2+ 34. Bxe2 Rxe2 35. Bxa7 Bh3 36. Bd4 Rb7 37. Rh5 Bg4 38. Rh4 h5 39. Kf1 Rbb2 40. h3 g5 41. Rxg4 hxg4 42. hxg4 Rxe4 43. Bf2 Rc2 44. Be1 Rxg4 45. Ra5 Kf7 46. Rf5+ Kg6 47. Rf8 Re4 0-1

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Van Alfen, Rene"]
[Result "1-0"]
[ECO "D89"]
[PlyCount "79"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[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. Ne2 c5 9. 0-0 Nc6 10. Be3 cxd4 11. cxd4 Bg4 12. f3 Na5 13. Bd3 Be6 14. d5 Bxa1 15. Qxa1 f6 16. Qb1 Bf7 17. Rc1 b6 18. Bh6 Nb7 19. Bxf8 Qxf8 20. Nd4 Nc5 21. Nc6 Kg7 22. Bc4 e6 23. Rd1 e5 24. f4 Qd6 25. fxe5 fxe5 26. Rf1 Nd7 27. Bb3 a6 28. Qd3 b5 29. Qe3 Re8 30. Kh1 Rf8 31. Rc1 Be8 32. h3 Rf4 33. Re1 Nf6 34. Qa7+ Kh6 35. Qxa6 Nxe4 36. Qxb5 Qf6 37. Kg1 Qh4 38. Qe2 Ng3 39. Qd2 Ne4 40. Rxe4 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.08"]
[Round "6"]
[White "Marcus, Joost"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "E08"]
[WhiteElo "2274"]
[PlyCount "57"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. g3 Be7 5. Bg2 0-0 6. 0-0 c6 7. Qc2 b6 8. b3 Bb7 9. Nc3 Nbd7 10. Rd1 Rc8 11. Bf4 Nh5 12. Bc1 Qc7 13. e4 f5 14. exf5 exf5 15. Ng5 Qd6 16. Qe2 Bxg5 17. Bxg5 Ndf6 18. Rac1 Rce8 19. Qf3 g6 20. c5 bxc5 21. dxc5 Qe5 22. Be3 Ba6 23. Bd4 Qe6 24. Qe3 Qxe3 25. Bxe3 Ne4 26. Nxe4 fxe4 27. Rd4 Bb5 28. Bf1 Bxf1 29. Kxf1 1/2-1/2

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "In't Veld, Daan"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "55"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Rxe4+ Be6 10. Nxd4 0-0-0 11. Be3 Bc5 12. Qh5 Nxd4 13. Bxd4 Bb6 14. Qxa5 Bxa5 15. Bxg7 Rhg8 16. Ra4 Bb6 17. Bh6 Bh3 18. g3 Rg6 19. Bf4 Bd4 20. Nb5 Bxb2 21. Rb1 a6 22. Nxc7 Rc6 23. Nb5 Rxc2 24. Nd6+ Kd7 25. Rb4 Ba3 26. Rxb7+ Ke6 27. Nxf7 h6 28. Nxd8+ 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "4"]
[White "Maahs, Erich"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C33"]
[WhiteElo "2202"]
[PlyCount "45"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6 5. Bb3 d5 6. exd5 cxd5 7. d4 Bd6 8. Nf3 0-0 9. 0-0 Nc6 10. Nxd5 Nxd5 11. Bxd5 Be6 12. Bb3 Bxb3 13. axb3 Qf6 14. c3 Rfe8 15. Ne1 Re4 16. Nd3 Rae8 17. Qf3 g5 18. g3 Re3 19. Bxe3 Rxe3 20. Qxe3 Qg6 21. Qe2 fxg3 22. hxg3 Bxg3 23. Rf3 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.06"]
[Round "1"]
[White "Leeuwenburgh, Evert"]
[Black "Saljihi, Naim"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "87"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 Bc5 6. Bc4 h6 7. Bxf7+ Kxf7 8. Qd5+ Ke8 9. Qxc5 d6 10. Qc4 Nf6 11. Nc3 Bg4 12. Be3 Rc8 13. 0-0-0 a6 14. Qa4 Kf7 15. Qb3+ Kg6 16. Qxb7 Rf8 17. Bb6 Qd7 18. Qxd7 Nxd7 19. Rxd6+ Kh7 20. Be3 Rc7 21. Rhd1 Nf6 22. Nd5 Nxd5 23. R1xd5 Nb4 24. Rc5 Rfc8 25. Rxc7 Rxc7 26. c3 Bxf3 27. gxf3 Nxa2+ 28. Kb1 Nxc3+ 29. bxc3 Rxc3 30. Rxa6 Rb3+ 31. Kc2 Rb5 32. Bd2 Rb7 33. Bc3 Rf7 34. Bxe5 Rxf3 35. Bg3 Rf7 36. Rc6 g5 37. Rc7 Kg6 38. Rxf7 Kxf7 39. Kd3 Ke6 40. Kd4 h5 41. h4 g4 42. Kc5 Kd7 43. Kd5 Ke7 44. Ke5 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.06"]
[Round "2"]
[White "Roobol, Martin"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2261"]
[PlyCount "49"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[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. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 Bb4 7. Be3 Qh4 8. Qd2 Qxg4 9. 0-0-0 Ne7 10. Rg1 Qh4 11. Rg3 Nf5 12. Bg5 Qxh2 13. Rg2 Qh1 14. Nf4 h6 15. Nxg6 fxg6 16. Bf4 g5 17. Rh2 Qf3 18. Bxg5 Bxc3 19. bxc3 Ne7 20. Bxe7 Kxe7 21. Be2 Qf8 22. f4 Nd7 23. Rg2 Qf7 24. f5 Nf8 25. Rxg7 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "3"]
[White "Bakels, Rosanne"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1635"]
[BlackElo "2005"]
[PlyCount "98"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Ne2 Qb6 7. 0-0 c5 8. c3 Nc6 9. a3 a5 10. Nd2 h5 11. f4 Nh6 12. Rf3 Nf5 13. Nf1 cxd4 14. Kh1 h4 15. Rb1 0-0-0 16. Bd2 a4 17. Qc2 Qb3 18. Qc1 d3 19. Rxd3 Bc5 20. Ne3 Bxe3 21. Bxe3 Qc4 22. Qd2 Qe4 23. h3 g5 24. Rf1 g4 25. Kh2 Rdg8 26. Rg1 Rg6 27. Nd4 Nfxd4 28. cxd4 Rhg8 29. Rc3 gxh3 30. gxh3 Rg3 31. Rxg3 Rxg3 32. Bg1 Qg6 33. Qf2 Rxc3 34. bxc3 Qd3 35. Qxh4 Qxc3 36. Qg3 Qxg3+ 37. Kxg3 b5 38. h4 Kd7 39. h5 Ke8 40. Be3 b4 41. Bc1 Nxd4 42. Kg4 Kf8 43. axb4 Nb5 44. Kg5 Kg8 45. Kf6 d4 46. h6 d3 47. h7+ Kxh7 48. Kxf7 a3 49. f5 a2 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "6"]
[White "Lacrosse, Marc"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "A96"]
[WhiteElo "2205"]
[BlackElo "2005"]
[PlyCount "75"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. 0-0 0-0 6. c4 d6 7. Nc3 a5 8. Re1 Na6 9. e4 fxe4 10. Nxe4 Nxe4 11. Rxe4 Rb8 12. Bh3 b5 13. Bxe6+ Bxe6 14. Rxe6 bxc4 15. Qe2 Rf7 16. Qxc4 Qd7 17. Bg5 Rb4 18. Qe2 Rxb2 19. Qe4 Bf8 20. Bc1 d5 21. Qe1 Rb6 22. Rxb6 cxb6 23. Ne5 Qe6 24. Qf1 Ra7 25. Be3 Nb4 26. Rc1 Nxa2 27. Rc6 Qf5 28. Rxb6 Nb4 29. Bd2 Qe4 30. Bxb4 axb4 31. Qd1 Ra2 32. Rb8 Re2 33. Kf1 Rc2 34. f3 Qf5 35. g4 Rxh2 36. gxf5 Rh1+ 37. Ke2 Rxd1 38. Kxd1 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "4"]
[White "Leeuwenburgh, Evert"]
[Black "Jonkman, Harmen"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2005"]
[BlackElo "2320"]
[PlyCount "80"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. a4 Nf6 5. e3 e6 6. Bxc4 c5 7. 0-0 Nc6 8. Qe2 Qc7 9. Nc3 Bd6 10. Rd1 0-0 11. h3 b6 12. dxc5 bxc5 13. e4 Ne5 14. Nxe5 Bxe5 15. Ba2 Rb8 16. Bb1 Rb4 17. Ra3 Bb7 18. Na2 Rd4 19. Rxd4 Bxd4 20. Be3 Rd8 21. Bxd4 Rxd4 22. Nc3 Qf4 23. Rb3 Rb4 24. Qd1 Qc7 25. f3 Qb6 26. a5 Qxa5 27. Qd6 g6 28. Rxb4 Qxb4 29. Qd8+ Kg7 30. e5 Ng8 31. Qd2 Ne7 32. Be4 Bd5 33. Kf2 a5 34. g4 Bxe4 35. Nxe4 Nc6 36. Qxb4 cxb4 37. f4 a4 38. Ke3 a3 39. bxa3 bxa3 40. Nc5 Na5 0-1

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Strating, Sybolt"]
[Result "1/2-1/2"]
[ECO "D18"]
[WhiteElo "2005"]
[BlackElo "2300"]
[PlyCount "125"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 Nbd7 9. Qb3 Qb6 10. Rd1 0-0 11. Bd2 a5 12. Rac1 h6 13. Nb1 Be7 14. Qxb6 Nxb6 15. Bb3 Nfd7 16. Nc3 Bg4 17. e4 e5 18. Be3 exd4 19. Bxd4 Bg5 20. Nxg5 Bxd1 21. Bxf7+ Kh8 22. Rxd1 hxg5 23. Be6 Rae8 24. Bf5 Kg8 25. Be3 Re7 26. Bxg5 Nf6 27. Be3 Nbd7 28. e5 Nxe5 29. Bc5 Nd5 30. Nxd5 cxd5 31. Bb1 Nc6 32. Ba2 Rd8 33. Bxe7 Nxe7 34. h4 Kf7 35. g4 Kf6 36. Kg2 d4 37. Re1 Nd5 38. Kg3 d3 39. g5+ Kg6 40. Bxd5 Rxd5 41. Rd1 Rd4 42. Rd2 b6 43. b3 Kf5 44. Kf3 Rxh4 45. Rxd3 Rf4+ 46. Ke3 Kxg5 47. Rd5+ Rf5 48. Ke4 g6 49. Rxf5+ gxf5+ 50. Kd5 Kf4 51. Kc6 Kf3 52. Kxb6 Kxf2 53. Kxa5 f4 54. b4 f3 55. b5 Kg2 56. b6 f2 57. b7 f1Q 58. b8Q Qe1+ 59. Ka6 Qe6+ 60. Ka7 Kh3 61. a5 Qe3+ 62. Qb6 Qe7+ 63. Kb8 1/2-1/2

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "2"]
[White "Leeuwenburgh, Evert"]
[Black "Van Beek, Lucien"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "2005"]
[BlackElo "2200"]
[PlyCount "99"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. 0-0 0-0 8. Be3 Nc6 9. f4 e5 10. Nb3 exf4 11. Rxf4 Be6 12. Nd5 Bxd5 13. exd5 Ne5 14. a4 Nfd7 15. Rb4 Qc7 16. a5 Rfe8 17. Qd2 Bf6 18. Rf1 Ng6 19. c3 a6 20. Bg4 Re5 21. Nd4 Rae8 22. Bf4 Re4 23. Ne6 fxe6 24. Rxe4 e5 25. Bxd7 Qxd7 26. Bg5 Qd8 27. Bxf6 gxf6 28. b4 Rf8 29. c4 f5 30. Ree1 b6 31. axb6 Qxb6+ 32. Kh1 f4 33. Qc3 Rc8 34. Re4 Qb7 35. Rd1 Ne7 36. Qb3 Nf5 37. Qf3 Kh8 38. c5 Nd4 39. Rexd4 exd4 40. c6 Qxb4 41. Qxf4 Re8 42. Rf1 Ra8 43. h4 Qc4 44. Qf6+ Kg8 45. Qf7+ Kh8 46. c7 d3 47. Qf6+ Kg8 48. Qd8+ Kg7 49. Qg5+ Kh8 50. Rf7 1-0

[Event "Haarlem AKN op 06th"]
[Site "Haarlem"]
[Date "1997.??.??"]
[Round "1"]
[White "Van Doeland, Julius"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2290"]
[PlyCount "85"]
[EventDate "1997.06.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 Be7 5. d4 0-0 6. c4 b6 7. Ne5 Bb7 8. Nc3 Nbd7 9. Bg5 c6 10. cxd5 exd5 11. Nxd7 Qxd7 12. Qa4 Rfd8 13. Rad1 Qf5 14. Bxf6 Bxf6 15. e4 dxe4 16. Bxe4 Qd7 17. Qc2 g6 18. d5 c5 19. d6 Bxc3 20. Bxb7 Qxb7 21. Qxc3 Rd7 22. Rd3 Rad8 23. Rfd1 Qe4 24. Re3 Qc6 25. Qf6 Rxd6 26. Qxd8+ Rxd8 27. Rxd8+ Kg7 28. Re7 a6 29. Rdd7 Qf6 30. b3 Kf8 31. Re2 b5 32. Red2 c4 33. bxc4 bxc4 34. Rc7 Qe5 35. Rd8+ Kg7 36. Rxc4 Qa1+ 37. Kg2 Qxa2 38. Rc7 a5 39. h4 a4 40. Ra7 Qc4 41. Rd6 Qe4+ 42. Kh2 Qe1 43. Kg2 1/2-1/2

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "6"]
[White "Jonkman, Harmen"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "C31"]
[WhiteElo "2325"]
[PlyCount "65"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Nc3 c6 6. d4 Nxd5 7. Nxd5 cxd5 8. Bxf4 Be7 9. Bd3 0-0 10. 0-0 Nc6 11. c3 Bf6 12. h3 Be6 13. Qc2 g6 14. Qd2 Qd7 15. Bh6 Bg7 16. Qf4 f6 17. Bxg7 Kxg7 18. Rae1 Rae8 19. Nd2 Qd8 20. Re3 Bc8 21. Rg3 f5 22. h4 Qf6 23. h5 Re7 24. Nf3 Kg8 25. Kf2 Rfe8 26. hxg6 hxg6 27. Qh6 Rg7 28. Rh1 Bd7 29. Qh8+ Kf7 30. Ng5+ Ke7 31. Re1+ Kd8 32. Rxe8+ Bxe8 33. Qxg7 1-0

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "Abeln, Michiel"]
[Result "1-0"]
[ECO "E11"]
[BlackElo "2100"]
[PlyCount "49"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d6 7. Qc2 0-0 8. e3 Ng4 9. h3 Nh6 10. Bd3 f5 11. 0-0-0 e5 12. dxe5 dxe5 13. e4 f4 14. c5 Kh8 15. Kb1 a5 16. Qc3 Re8 17. Bb5 c6 18. Ba4 Na6 19. Rc1 Bd7 20. Rhd1 Nf7 21. Bb3 Ng5 22. Nxg5 Qxg5 23. Nf3 Qxg2 24. Rxd7 Nxc5 25. Ne1 1-0

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "1"]
[White "Leeuwenburgh, Evert"]
[Black "Beals, David"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "63"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. e5 c5 4. dxc5 Bxc5 5. Bd3 Nc6 6. Nf3 Nge7 7. Bf4 Qb6 8. 0-0 Bd7 9. Nbd2 Nb4 10. Be2 Bb5 11. c3 Bxe2 12. Qxe2 Ng6 13. Bg3 Nc6 14. b4 Be7 15. Nb3 Rc8 16. Rad1 0-0 17. Rd3 a5 18. a3 a4 19. Nbd4 Nxd4 20. Nxd4 Bh4 21. Bxh4 Nxh4 22. Qh5 Ng6 23. Rh3 h6 24. Rg3 Rc7 25. Rd1 Rfc8 26. Rdd3 Rc4 27. h4 R4c7 28. Qg4 Kf8 29. h5 Ne7 30. Qxg7+ Ke8 31. Qxh6 Nc6 32. Nxe6 1-0

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "Van Blitterswijk, Stefan"]
[Result "1/2-1/2"]
[ECO "A58"]
[BlackElo "2310"]
[PlyCount "114"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nf3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. 0-0 0-0 10. Nc3 Nbd7 11. Re1 Ra7 12. Qc2 Qa8 13. e4 Ng4 14. Bf4 Nge5 15. Rad1 Rb8 16. Bc1 Nxf3+ 17. Bxf3 Ne5 18. Kg2 c4 19. Be2 Nd3 20. Bxd3 cxd3 21. Qd2 Rc8 22. Qe3 Bc4 23. h4 h5 24. Bd2 Bxa2 25. Qxd3 Bc4 26. Qe3 Qb8 27. Rb1 Rb7 28. b4 Rxb4 29. Rxb4 Qxb4 30. Rb1 Qa5 31. Ne2 Qa2 32. Rc1 Bb2 33. Re1 Qa4 34. Nf4 Rb8 35. Qf3 Rb3 36. Be3 Bg7 37. Rc1 Qb5 38. Qd1 Bd3 39. Nxd3 Rxd3 40. Rc8+ Kh7 41. Qf3 Qd7 42. Ra8 f5 43. Qf4 e5 44. dxe6 Qxe6 45. exf5 Qxf5 46. Qxf5 gxf5 47. Ra7 Kg6 48. Kf1 Be5 49. Ke2 Rb3 50. Rd7 Rb4 51. Kf3 Rb3 52. Ke2 Rb4 53. Kf3 Ra4 54. Ke2 Ra8 55. Kf3 Re8 56. Bb6 Re6 57. Be3 Rf6 1/2-1/2

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "4"]
[White "Speijer, Nico Bram"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "C36"]
[WhiteElo "2245"]
[PlyCount "39"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bc4 Nxd5 6. Bxd5 Qxd5 7. Nc3 Qh5 8. d4 Bd6 9. Qe2+ Kd8 10. Ne5 Qxe2+ 11. Nxe2 Bxe5 12. dxe5 Bf5 13. Bxf4 Nc6 14. 0-0-0+ Kc8 15. c3 a5 16. Nd4 Nxd4 17. Rxd4 a4 18. Rhd1 b6 19. a3 Ra5 20. Bg3 1/2-1/2

[Event "Haarlem AKN op 05th"]
[Site "Haarlem"]
[Date "1996.??.??"]
[Round "2"]
[White "Straat, Evert Jan"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "E09"]
[WhiteElo "2210"]
[PlyCount "113"]
[EventDate "1996.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 c6 7. Qc2 b6 8. b3 Bb7 9. Nbd2 Nbd7 10. Bb2 Qc7 11. cxd5 exd5 12. a3 a5 13. Bc3 c5 14. dxc5 bxc5 15. e3 Rfc8 16. Rfc1 Bd6 17. Qf5 Qd8 18. h4 Qe7 19. Bh3 Re8 20. Re1 Bc8 21. Qc2 Ne5 22. Bg2 Neg4 23. Nf1 Ne4 24. Ng5 Ngxf2 25. Nxe4 Nxe4 26. Bxe4 Qxe4 27. Qxe4 Rxe4 28. Rad1 Bb7 29. Kf2 a4 30. Rb1 Bc6 31. Re2 Rae8 32. Rd2 d4 33. exd4 cxd4 34. Bb4 Bxb4 35. axb4 a3 36. Ra1 Ra8 37. Re2 Rxe2+ 38. Kxe2 Bb5+ 39. Kf2 a2 40. Nd2 f5 41. Nc4 Bxc4 42. bxc4 Kf7 43. b5 Ke6 44. b6 Kd6 45. b7 Rb8 46. Rxa2 Rxb7 47. Ra5 g6 48. Rd5+ Kc6 49. Rxd4 Kc5 50. Rd8 Kxc4 51. Kf3 Kc5 52. Kf4 h6 53. Rh8 Rb4+ 54. Kf3 h5 55. Rg8 Rb6 56. Kf4 Rb4+ 57. Kf3 1/2-1/2

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "6"]
[White "De Bruijn, Aad"]
[Black "Leeuwenburgh, Evert"]
[Result "1-0"]
[ECO "B11"]
[PlyCount "125"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nc3 c6 2. e4 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Ne5 Bh7 8. Qh5 g6 9. Bc4 e6 10. Qe2 Nf6 11. b3 Bg8 12. Bb2 Rh7 13. 0-0-0 Nbd7 14. h5 Nxe5 15. Bxe5 Nd5 16. hxg6 fxg6 17. Ne4 Be7 18. g4 Qa5 19. Bxd5 Qxa2 20. Nf6+ Bxf6 21. Bxf6 cxd5 22. Qb5+ Rd7 23. Rxh6 Rc8 24. Bb2 Qa6 25. Qxa6 bxa6 26. Be5 Kf7 27. Rdh1 Rc6 28. R1h3 Rd8 29. Rf3+ Ke8 30. Kb2 Rdc8 31. c3 Bf7 32. Rh8+ Ke7 33. Rh7 Rf8 34. Bd4 Rc7 35. b4 Ke8 36. Rf6 Rd7 37. Bc5 Rg8 38. g5 e5 39. Rc6 Kd8 40. Rxa6 d4 41. cxd4 exd4 42. Bxa7 Kc8 43. Bc5 Kb8 44. Rf6 Be6 45. Rxd7 Bxd7 46. Bxd4 Bf5 47. b5 Re8 48. b6 Re7 49. f4 Rd7 50. Kc3 Kb7 51. Kc4 Be4 52. Be3 Bd3+ 53. Kc5 Be4 54. Rf8 Rd5+ 55. Kb4 Rd7 56. Rh8 Bf5 57. Rh1 Bd3 58. Kc5 Be4 59. Ra1 Rd5+ 60. Kc4 Rd6 61. Ra7+ Kb8 62. Bd4 Bb7 63. Be5 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "4"]
[White "De Ron, Paul"]
[Black "Leeuwenburgh, Evert"]
[Result "0-1"]
[ECO "D45"]
[PlyCount "73"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Qc2 Be7 5. Nf3 0-0 6. e3 c6 7. c5 b6 8. cxb6 axb6 9. a3 Nbd7 10. Be2 Ba6 11. 0-0 Qb8 12. Rb1 Bxe2 13. Nxe2 c5 14. dxc5 bxc5 15. Nc3 Rc8 16. Qe2 e5 17. e4 d4 18. Nd5 Nxd5 19. exd5 f5 20. Bg5 Bd6 21. Nh4 Rf8 22. Qd3 e4 23. Qh3 Bf4 24. Be7 Rf7 25. d6 Bxd6 26. Bxd6 Qxd6 27. Nxf5 Qe6 28. g4 Ne5 29. f4 Nxg4 30. Nxd4 cxd4 31. f5 Rxf5 32. Rxf5 Qxf5 33. Rf1 Qg5 34. Qb3+ Kh8 35. Kh1 Ne3 36. Rg1 Qf6 37. Qb7 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "2"]
[White "Happel, Henk"]
[Black "Leeuwenburgh, Evert"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2240"]
[PlyCount "47"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 0-0 7. e4 Nxc3 8. Bxc3 c5 9. Qd2 cxd4 10. Nxd4 Qb6 11. Rd1 Nc6 12. Nxc6 Qxc6 13. Bd3 Bxc3 14. bxc3 Be6 15. 0-0 Rfd8 16. Qc2 Rac8 17. Rc1 Bxa2 18. Qxa2 Rxd3 19. Qxa7 Qxe4 20. Rce1 Qc6 21. Rxe7 Rd7 22. Rxd7 Qxd7 23. Qd4 Qc6 24. Rc1 1/2-1/2

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "5"]
[White "Leeuwenburgh, Evert"]
[Black "De Graaf, Evert"]
[Result "1-0"]
[ECO "D46"]
[PlyCount "59"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bd6 7. 0-0 0-0 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6 11. Bc2 c5 12. Bg5 h6 13. Bh4 cxd4 14. Qd3 Re8 15. Rfe1 Bd7 16. Nxd4 g5 17. Bg3 Bxg3 18. Qxg3 Rc8 19. Rad1 Qc7 20. Re5 Nh5 21. Qe3 f6 22. Re4 e5 23. Qf3 Ng7 24. Qxf6 exd4 25. Qxh6 Rxe4 26. Bxe4 Qe5 27. Re1 Rxc4 28. f4 Qxf4 29. Bd5+ Be6 30. Rxe6 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "1"]
[White "Leeuwenburgh, Evert"]
[Black "Dielissen, H."]
[Result "1-0"]
[ECO "C50"]
[PlyCount "81"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. c3 Na5 5. Be2 f5 6. d3 Nf6 7. exf5 Bxf5 8. Bg5 h6 9. Be3 c5 10. Nh4 Qd7 11. Nxf5 Qxf5 12. Bf3 e4 13. dxe4 Qe6 14. 0-0 0-0-0 15. Nd2 g5 16. h3 Nc6 17. Bg4 Nxg4 18. Qxg4 Qxg4 19. hxg4 Ne5 20. f3 b5 21. a4 Nc4 22. Nxc4 bxc4 23. Rfd1 a5 24. Rd5 Bg7 25. g3 Rhf8 26. Kg2 Kc7 27. Rad1 Bf6 28. f4 Rb8 29. Bc1 Rb6 30. e5 Be7 31. f5 Rf7 32. e6 Rh7 33. Kf3 Bf6 34. Ke4 Rh8 35. Rh1 Kd8 36. Rd2 Ke7 37. Kd5 Be5 38. Rdh2 Bxg3 39. Bxg5+ Ke8 40. Rxh6 Rg8 41. Rh8 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "3"]
[White "Leeuwenburgh, Evert"]
[Black "Hoogendoorn, Joost"]
[Result "0-1"]
[ECO "A58"]
[PlyCount "147"]
[EventDate "1995.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nf3 Bg7 7. g3 Bxa6 8. Bg2 d6 9. 0-0 0-0 10. Nc3 Nbd7 11. Re1 Qb6 12. Qc2 Rfb8 13. Rb1 Ng4 14. h3 Nge5 15. Nxe5 Nxe5 16. b3 Qa5 17. Bd2 c4 18. Na4 cxb3 19. axb3 Qd8 20. Bc3 Rc8 21. Qd2 Bb5 22. f4 Bxa4 23. fxe5 Bb5 24. Qe3 Rxc3 25. Qxc3 Bxe5 26. Qe3 Ra2 27. Be4 Kg7 28. Rbc1 Qa5 29. Kg2 Qb4 30. Bf3 Bd7 31. Red1 Ra3 32. Rc7 Rxb3 33. Qa7 Ra3 34. Qb7 Qxb7 35. Rxb7 Ba4 36. Rc1 Bf6 37. Ra7 Ra2 38. Rc8 Bb3 39. Rb7 Bc2 40. Rbb8 h5 41. g4 hxg4 42. hxg4 Bd3 43. Ra8 Rd2 44. Rh8 Bg5 45. Kf2 Bc4 46. Rag8+ Kf6 47. Rh7 Rxd5 48. Bxd5 Bxd5 49. Rb8 e5 50. Rb5 Be6 51. Rh1 d5 52. Rd1 d4 53. Kf3 Bf4 54. Rxd4 Bh2 55. Rd1 e4+ 56. Kg2 Bc7 57. g5+ Kg7 58. Rb7 Bf4 59. Rb5 Bc4 60. Rb2 Bxg5 61. Rd4 Be6 62. Rxe4 Bd5 63. Kf3 f5 64. Rbb4 Bxe4+ 65. Kg3 Be7 66. Ra4 Kf6 67. e3 Kg5 68. Ra5 Bd6+ 69. Kh3 Bb4 70. Ra4 Bc5 71. Ra1 Bxe3 72. Re1 Kf4 73. Ra1 g5 74. Ra4 0-1

