[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "5"]
[White "Delemarre, Jop"]
[Black "Willemsen, Lourens"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2235"]
[PlyCount "33"]
[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. Nf3 Nf6 4. Nc3 Be7 5. Bf4 c6 6. e3 Nbd7 7. Qc2 0-0 8. cxd5 exd5 9. Bd3 c5 10. 0-0 c4 11. Be2 a6 12. a4 Re8 13. Rfc1 Nf8 14. b3 cxb3 15. Qxb3 Ne6 16. Be5 Nc7 17. Bxc7 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "1"]
[White "Mulder, Catrinus"]
[Black "Willemsen, Lourens"]
[Result "1-0"]
[ECO "C43"]
[PlyCount "45"]
[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 Nf6 3. d4 Nxe4 4. dxe5 d5 5. exd6 Nxd6 6. Bd3 Be7 7. 0-0 0-0 8. Nc3 Be6 9. Nd4 Bc4 10. Bxc4 Nxc4 11. Nf5 Bf6 12. Qe2 Nb6 13. Ne4 N8d7 14. Rd1 Qe8 15. Qg4 Qe6 16. Nxf6+ Qxf6 17. Bg5 Qxb2 18. Rab1 Qc3 19. Rb3 Ne5 20. Ne7+ Kh8 21. Qf5 Rad8 22. Rf1 Qd4 23. Qxh7+ 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "3"]
[White "Resnick, Paul"]
[Black "Willemsen, Lourens"]
[Result "0-1"]
[ECO "D03"]
[PlyCount "74"]
[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. Nf3 e6 3. Bg5 d5 4. Nbd2 Be7 5. e3 h6 6. Bh4 Nbd7 7. c3 0-0 8. Bd3 c5 9. 0-0 c4 10. Bc2 b5 11. Ne5 Nxe5 12. dxe5 Nd7 13. Bxe7 Qxe7 14. f4 b4 15. Qh5 f5 16. Rf3 bxc3 17. bxc3 Nc5 18. Rg3 Kh8 19. a3 Bd7 20. Rh3 Rfb8 21. g4 Be8 22. Qh4 Qxh4 23. Rxh4 Rb2 24. Rc1 fxg4 25. Rxg4 Ba4 26. Bxa4 Nxa4 27. Nb1 Rab8 28. Rg6 Rxb1 29. Rxb1 Rxb1+ 30. Kf2 Rb6 31. h4 Nxc3 32. f5 exf5 33. Rxb6 axb6 34. Kf3 Ne4 35. Kf4 c3 36. e6 Kg8 37. e7 Kf7 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "2"]
[White "Willemsen, Lourens"]
[Black "Cliteur, Olaf"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "52"]
[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 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Qc7 7. Bd3 Nc6 8. Qe4 d6 9. exd6 Bxd6 10. 0-0 Bd7 11. Nbd2 f5 12. Qe1 0-0-0 13. Nc4 e5 14. Nxd6+ Qxd6 15. Bc4 h6 16. b4 e4 17. Bxd5 Qxd5 18. Nd4 g5 19. Bb2 Nxd4 20. cxd4 Kb8 21. f3 Rc8 22. fxe4 fxe4 23. Rf2 Rc4 24. a3 Rhc8 25. Qd1 e3 26. Re2 Bg4 0-1

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "4"]
[White "Willemsen, Lourens"]
[Black "Dekker, Jop"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "75"]
[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. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Neg5 0-0-0 11. Nxe6 fxe6 12. Rxe6 Bd6 13. Bg5 Rdf8 14. Qe2 Kd7 15. Bd2 Qf5 16. Re4 Re8 17. Re1 Rxe4 18. Qxe4 Qxe4 19. Rxe4 Bc5 20. Kf1 Re8 21. Rxe8 Kxe8 22. Ke2 Ke7 23. Kd3 Kf6 24. Ke4 h6 25. a3 a5 26. Bf4 Bb6 27. Ne5 g5 28. Nxc6 gxf4 29. Nxd4 f3 30. g3 h5 31. c3 a4 32. Kxf3 Ke5 33. Ke3 Kd5 34. Kd3 c5 35. c4+ Ke5 36. Ne2 Kf5 37. f3 Bc7 38. Nc3 1-0

[Event "Haarlem AKN op 04th"]
[Site "Haarlem"]
[Date "1995.??.??"]
[Round "6"]
[White "Willemsen, Lourens"]
[Black "Rensink, Chris"]
[Result "1/2-1/2"]
[ECO "C56"]
[PlyCount "68"]
[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. d4 exd4 4. Bc4 Nf6 5. 0-0 Be7 6. e5 Ne4 7. Re1 d5 8. exd6 Nxd6 9. Bd5 0-0 10. Nxd4 Nxd4 11. Qxd4 Bf6 12. Qd1 c6 13. Bb3 Bf5 14. Nc3 Bxc3 15. bxc3 Qf6 16. Qd4 Qg6 17. Bf4 Rad8 18. Qxa7 Be4 19. Bg3 Nb5 20. Qxb7 Nxc3 21. Qb4 Qf6 22. Rac1 Rfe8 23. f3 Nd5 24. Qa4 Nc3 25. Qa6 Bd5 26. Bxd5 Rxe1+ 27. Rxe1 Qd4+ 28. Kf1 Qxd5 29. a4 c5 30. Be5 Ra8 31. Qd3 Qxd3+ 32. cxd3 Nxa4 33. Ra1 f6 34. Bc7 Ra7 1/2-1/2

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "2"]
[White "Dekker, Bart"]
[Black "Willemsen, Lourens"]
[Result "1-0"]
[ECO "E43"]
[PlyCount "45"]
[EventDate "1993.07.??"]
[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 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. e3 Ba6 7. Bd3 d6 8. f3 e5 9. Ne2 0-0 10. Ng3 Qd7 11. 0-0 Nc6 12. f4 Rfe8 13. fxe5 dxe5 14. Rxf6 gxf6 15. Bf5 Qd8 16. Qg4+ Kf8 17. Bd7 f5 18. Nxf5 Qf6 19. Bxc6 exd4 20. e4 Qg6 21. Bh6+ Kg8 22. Qxg6+ hxg6 23. Nxd4 1-0

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "4"]
[White "Sekano, Willy"]
[Black "Willemsen, Lourens"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1840"]
[PlyCount "114"]
[EventDate "1993.07.??"]
[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 e6 3. g3 d5 4. Bg2 c5 5. Nf3 Nc6 6. cxd5 exd5 7. 0-0 Bg4 8. dxc5 Bxc5 9. Nc3 d4 10. Na4 Be7 11. Qb3 Qc7 12. Bf4 Qc8 13. Rac1 Qd7 14. Rfd1 Na5 15. Qc2 Bf5 16. Nc5 Bxc2 17. Nxd7 Bxd1 18. Nxf6+ Bxf6 19. Rxd1 Nc6 20. Ng5 0-0 21. Ne4 Be7 22. Bd6 Rad8 23. Bxe7 Nxe7 24. Nc5 b6 25. Nb3 Rfe8 26. Kf1 Rd6 27. Be4 Red8 28. Nd2 Nd5 29. Bd3 Rf6 30. Kg2 Nb4 31. Ne4 Rc6 32. Bb1 h6 33. a3 Nd5 34. Bd3 Nc7 35. Nd2 Ne6 36. b4 Rdc8 37. Ne4 Rc1 38. Rd2 Ra1 39. Nd6 Rcc1 40. h4 Rxa3 41. f4 g6 42. f5 gxf5 43. Nxf5 h5 44. Ne7+ Kf8 45. Nd5 Raa1 46. Kf3 a5 47. bxa5 bxa5 48. Rb2 Nc5 49. Rb8+ Kg7 50. Kf4 Ne6+ 51. Ke5 Rc5 52. Kd6 Rac1 53. Ne7 Nc7 54. Rg8+ Kf6 55. Rh8 Nb5+ 56. Bxb5 Rxb5 57. Nd5+ Kg6 1-0

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "1"]
[White "Willemsen, Lourens"]
[Black "De Wit, William"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "78"]
[EventDate "1993.07.??"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. a4 0-0 9. Be3 Nbd7 10. a5 b5 11. axb6 Nxb6 12. 0-0 Qc7 13. f4 Nc4 14. Bxc4 Qxc4 15. Qf3 d5 16. exd5 e4 17. Qg3 Bd7 18. f5 Ne8 19. f6 Nxf6 20. d6 Bd8 21. Nc5 Bc6 22. Kh1 g6 23. Rad1 Nh5 24. Qf2 f5 25. g4 f4 26. gxh5 Bb6 27. hxg6 Bxc5 28. gxh7+ Kh8 29. d7 Rad8 30. Qg2 Bxe3 31. Rd6 f3 32. Qh3 Bf4 33. Rg6 Rxd7 34. Rg8+ Rxg8 35. hxg8Q+ Kxg8 36. Rg1+ Rg7 37. Qc8+ Kh7 38. Qf5+ Kg8 39. Qc8+ Kh7 0-1

[Event "Haarlem AKN op 02nd"]
[Site "Haarlem"]
[Date "1993.??.??"]
[Round "3"]
[White "Willemsen, Lourens"]
[Black "Escher, Johan"]
[Result "1-0"]
[ECO "B18"]
[PlyCount "121"]
[EventDate "1993.07.??"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 e6 7. h4 h5 8. Ne5 Ne7 9. Nxg6 fxg6 10. Bg5 Qa5+ 11. c3 Nd7 12. Ne4 Nf5 13. Bc4 Kf7 14. 0-0 Nf6 15. Qb3 Re8 16. Nc5 Bxc5 17. dxc5 b5 18. Bxe6+ Rxe6 19. Rfe1 Rhe8 20. Rxe6 Rxe6 21. Re1 Nd5 22. Rd1 Qa4 23. Qxa4 bxa4 24. c4 Nf6 25. Kf1 Re4 26. b3 axb3 27. axb3 Nxh4 28. f3 Nxf3 29. gxf3 Re5 30. Bh4 Rxc5 31. Ra1 a5 32. Be1 Rf5 33. Kg2 Re5 34. Kf2 Re8 35. Rxa5 Rb8 36. b4 Nd7 37. Bc3 Nf6 38. Ra7+ Kg8 39. Rc7 Rf8 40. Kg3 Rf7 41. Rc8+ Kh7 42. Rxc6 g5 43. b5 Ne8 44. b6 Rb7 45. c5 Kg8 46. Be5 Kf7 47. Rc7+ Nxc7 48. bxc7 Rxc7 49. Bxc7 Ke6 50. Bd8 Kd5 51. Bxg5 Kxc5 52. Kf4 g6 53. Ke5 Kc6 54. Kf6 Kd5 55. Kxg6 Ke5 56. f4+ Ke6 57. Kxh5 Kf5 58. Kh6 Ke6 59. Kg6 Kd7 60. f5 Ke8 61. Bh6 1-0

