[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Leisebein, Peter"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "70"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. 0-0 0-0 8. Bg5 Bg4 9. Qd2 Nc6 10. Rad1 Ne8 11. Qf4 Bxf3 12. Rxf3 Nd6 13. Bd5 Nf5 14. g4 Nfxd4 15. Rf2 Qd7 16. Rfd2 e6 17. Bg2 f6 18. Bh4 f5 19. Bf2 e5 20. Qe3 fxg4 21. Be4 Ne7 22. Bg2 c6 23. Qg5 Rae8 24. Ne4 Nd5 25. Kh1 Qe6 26. Qh4 h5 27. Bg1 Bh6 28. c4 Nf4 29. b3 b6 30. Qe1 c5 31. Rf2 h4 32. Rb2 Nxg2 33. Rxg2 h3 34. Rb2 Qc6 35. Re2 Rf4 0-1

[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Luzuriaga, Norberto Horacio"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "74"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6 6. Bb5 Bd7 7. 0-0 e6 8. Bxc6 Bxc6 9. Ne5 Be7 10. Qd3 0-0 11. Bg5 Be8 12. Rae1 c5 13. Bxf6 gxf6 14. Nf3 cxd4 15. Ne4 f5 16. Ned2 Bf6 17. Nb3 Qb6 18. Nfxd4 Ba4 19. Rf2 Bxb3 20. Nxb3 Bxb2 21. c3 Kh8 22. Rb1 Rad8 23. Nd4 Bxc3 24. Rxb6 Bxd4 25. Qxd4+ Rxd4 26. Rxb7 a6 27. Rfb2 Kg7 28. Ra7 Ra4 29. Rb6 Rxa2 30. Rbxa6 Rxa6 31. Rxa6 e5 32. Kf2 Rb8 33. Ra2 h5 34. Rc2 h4 35. g3 Kg6 36. gxh4 f4 37. Re2 Kf5 0-1

[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Wolf, Herbert"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "88"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bc4 Bb4 7. Bg5 0-0 8. 0-0 Bxc3 9. bxc3 h6 10. Bxf6 Qxf6 11. Ne5 Qe7 12. Qf3 Nd7 13. Nxd7 Bxd7 14. Qxb7 Ba4 15. Bd3 Qd7 16. Qe4 f5 17. Qe5 Bc6 18. Rae1 Rf6 19. Rf2 Rb8 20. c4 Qd6 21. c3 a6 22. Qa5 Qd7 23. Qa3 Rff8 24. Rfe2 Rf6 25. Qc1 f4 26. Be4 Bxe4 27. Rxe4 f3 28. gxf3 Qa4 29. Qe3 Rbf8 30. Qe2 Rxf3 31. Rxe6 Rxc3 32. Re7 Qa5 33. Qg4 Qg5 34. Qxg5 hxg5 35. Rxc7 Rf4 36. Rc8+ Kh7 37. d5 Rc2 38. Re3 Rd4 39. Rh3+ Kg6 40. Rc6+ Kf5 41. Rf3+ Ke4 42. Rf2 Rcxc4 43. Rxa6 Kxd5 44. Ra5+ Ke6 1/2-1/2

[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "Hole, Terrence"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "79"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5 5. fxe4 Nxe4 6. Qf3 Nd6 7. Bf4 e6 8. 0-0-0 c6 9. h4 h5 10. Qg3 b5 11. Bd3 Na6 12. Nf3 Bxd3 13. Rxd3 Nf5 14. Qh2 Nb4 15. Rdd1 Nd5 16. Nxd5 cxd5 17. Rhe1 Bd6 18. Kb1 0-0 19. Re2 b4 20. Rh1 Bxf4 21. Qxf4 Qb8 22. Re5 f6 23. Rxf5 exf5 24. Qxf5 Qb7 25. Qxh5 Rae8 26. g4 Qd7 27. Rh2 Re3 28. Rf2 Qe6 29. b3 Re1+ 30. Kb2 Qe3 31. Qxd5+ Rf7 32. Qa8+ Kh7 33. Nxe1 Qc3+ 34. Kc1 Qxe1+ 35. Kb2 Qxf2 36. Qd5 Re7 37. Qh5+ Kg8 38. Qd5+ Kf8 39. Qd8+ Kf7 40. Qd5+ 1/2-1/2

[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "Leisebein, Peter"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "73"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5 5. fxe4 Nxe4 6. Qf3 Nd6 7. Bf4 e6 8. 0-0-0 c6 9. g4 Bg6 10. Qe3 h5 11. d5 cxd5 12. Rxd5 a6 13. Nf3 Nc6 14. Ng5 Be7 15. Nxe6 fxe6 16. Rxd6 Bxd6 17. Qxe6+ Ne7 18. Bxd6 Qd7 19. Bc4 Qxe6 20. Bxe6 Bf7 21. Re1 Bxe6 22. Rxe6 Kd7 23. Rxe7+ Kxd6 24. Rxg7 hxg4 25. Rxg4 Rxh2 26. b4 Rd8 27. Rd4+ Kc7 28. Rxd8 Kxd8 29. Kb2 Kc7 30. a4 Kd6 31. a5 Rh4 32. Ka3 Rh3 33. Kb3 Ke5 34. Kc4 Rh2 35. Kb3 Kd4 36. Na4 Rh7 37. c3+ 1/2-1/2

[Event "BDG theme1 G3 email"]
[Site "GER email"]
[Date "2001.??.??"]
[Round "?"]
[White "Wolf, Herbert"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "65"]
[EventDate "2001.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5 5. g4 Bg6 6. h4 h6 7. Bg2 c5 8. d5 exf3 9. Bxf3 Nbd7 10. Qe2 Qc7 11. Nb5 Qg3+ 12. Kf1 a6 13. Rh3 Qb8 14. Na3 Qe5 15. c4 0-0-0 16. h5 Bh7 17. Be3 e6 18. Rd1 Nb6 19. Qf2 Na4 20. Bc1 exd5 21. Rd2 Nb6 22. Ne2 d4 23. Nf4 Qc7 24. Nd3 Bd6 25. Rd1 Kb8 26. Qd2 Rhe8 27. Nf2 Ne4 28. Bxe4 Bxe4 29. Nxe4 Rxe4 30. Qg2 Qe7 31. Rf3 Qe6 32. b3 Re8 33. Bd2 0-1

[Event "SEMI The Climb W email"]
[Site "SEMI email"]
[Date "1999.??.??"]
[Round "?"]
[White "Aghelidas, Achilles"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "44"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d5 4. exd5 Qxd5 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bxf3 8. Nxd5 Bxd1 9. Nc7+ Kd8 10. Nxa8 Bh5 11. Bg5 Nf6 12. Rc1 Nxd4 13. Bd3 Nd7 14. Be4 b6 15. f3 f6 16. Be3 e5 17. Nc7 Nc5 18. Bxd4 exd4 19. Nb5 Nxe4 20. fxe4 Bc5 21. 0-0 d3+ 22. Kh1 Be2 0-1

[Event "SEMI The Climb W email"]
[Site "SEMI email"]
[Date "1999.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Buhagiar, David"]
[Result "1/2-1/2"]
[ECO "E92"]
[PlyCount "99"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. e4 d6 6. Be2 e5 7. Be3 Ng4 8. Bg5 f6 9. Bh4 g5 10. Bg3 Nh6 11. dxe5 dxe5 12. Qb3 c6 13. Qa3 Be6 14. 0-0 Nd7 15. Rad1 Re8 16. h3 Nf7 17. Rfe1 Bh6 18. b4 Bf8 19. Qb2 Qe7 20. c5 a5 21. a3 axb4 22. axb4 Reb8 23. Qc2 b6 24. Nd5 cxd5 25. exd5 Bxd5 26. Rxd5 bxc5 27. Red1 Rb7 28. Bd3 cxb4 29. Bxh7+ Kh8 30. Be4 Raa7 31. Ra5 b3 32. Qc3 Rxa5 33. Bxb7 Rb5 34. Ba6 Rb8 35. Bc4 b2 36. Nd2 Qc5 37. Qd3 Nd6 38. Bb3 Bg7 39. Ba2 Nf8 40. Nb1 Rb6 41. Nc3 Qa5 42. Qf3 Nf5 43. Qxf5 Qxc3 44. Qg4 Qc2 45. Bb1 Qb3 46. Rd8 Kg8 47. Qf5 Kf7 48. Rd7+ Nxd7 49. Qxd7+ Kg8 50. Qe8+ 1/2-1/2

[Event "WECF email"]
[Site "email"]
[Date "1999.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Dijksman, Leo"]
[Result "1/2-1/2"]
[ECO "A81"]
[PlyCount "59"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nh3 Bg7 5. Nf4 Nc6 6. 0-0 e5 7. dxe5 Nxe5 8. Nd3 Nxd3 9. exd3 0-0 10. Re1 d5 11. Bf4 c6 12. Qd2 Re8 13. Rxe8+ Qxe8 14. Nc3 Qf7 15. Re1 Bd7 16. Bd6 Re8 17. Ne2 Qe6 18. Ba3 b6 19. d4 Bc8 20. Qd3 f4 21. gxf4 Nh5 22. Bb4 Qf6 23. Qd2 a5 24. Ba3 Bd7 25. b3 Nxf4 26. Nxf4 Rxe1+ 27. Qxe1 Qxf4 28. Qe7 Qf7 29. Qd8+ Qe8 30. Qxb6 1/2-1/2

[Event "SEMI The Climb NED corr"]
[Site "SEMI email"]
[Date "1999.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Leeuwestein, Cor"]
[Result "1-0"]
[ECO "A13"]
[PlyCount "103"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. d3 Be7 8. 0-0 Nbd7 9. Nc3 0-0 10. d4 Bd6 11. a3 a6 12. Bg5 h6 13. Bd2 Nb6 14. Qd3 Nbd5 15. Ne5 Bxe5 16. dxe5 Nd7 17. f4 Nc5 18. Qc4 Qe7 19. b4 Na4 20. Nxa4 Bxa4 21. f5 Nb6 22. Qc3 exf5 23. Bxb7 Ra7 24. Bh1 Rd8 25. Be3 Qe6 26. Rf2 Qg6 27. Raf1 Bd7 28. Rd1 Qe6 29. Bg2 Qe8 30. Bd4 g6 31. e4 Kh7 32. exf5 Bxf5 33. Rff1 Bg4 34. Bc6 Qg8 35. Rd2 Bf5 36. a4 Bh3 37. Rc1 Qf8 38. a5 Nc8 39. Bc5 Qg8 40. Rxd8 Qxd8 41. Qe3 Qg5 42. Bxa7 Nxa7 43. Qxg5 hxg5 44. Bb7 c6 45. Bxc6 Bf5 46. Bb7 Nb5 47. Kf2 Kg7 48. Bxa6 Nd4 49. Ke3 Nb3 50. Rc3 Be6 51. Bc4 Bxc4 52. Rxc4 1-0

[Event "WECF email"]
[Site "email"]
[Date "1999.??.??"]
[Round "?"]
[White "Dijksman, Leo"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "E12"]
[PlyCount "90"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. e3 Nd7 8. Bd3 c5 9. 0-0 Nxc3 10. bxc3 Qc7 11. e4 Be7 12. Qe2 Rc8 13. d5 c4 14. Bc2 0-0 15. dxe6 fxe6 16. Nd4 Nc5 17. Re1 Kh8 18. e5 Bd5 19. Rb1 Bh4 20. g3 Be7 21. f4 Ba8 22. h4 Nd3 23. Rd1 Nxc1 24. Rbxc1 Bc5 25. Kh2 Bd5 26. Rd2 Qf7 27. a4 Rfd8 28. Rcd1 Rd7 29. Nf3 Qe8 30. Be4 a6 31. a5 bxa5 32. Bxd5 Rxd5 33. Rxd5 exd5 34. Rxd5 Qc6 35. Qe4 Be7 36. Ng5 Bxg5 37. hxg5 Rg8 38. f5 a4 39. e6 Qb7 40. f6 gxf6 41. gxf6 Qb2+ 42. Qg2 Qb6 43. f7 Qxe6 44. fxg8Q+ Kxg8 45. Rg5+ Kf8 1-0

[Event "WECF corr"]
[Site "corr"]
[Date "1999.??.??"]
[Round "?"]
[White "Ellison, J."]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "70"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Bg4 3. Ne5 Bf5 4. c4 dxc4 5. Qa4+ Nd7 6. Nxd7 Qxd7 7. Qxc4 Nf6 8. Nc3 0-0-0 9. e4 Bg6 10. f5 Bh5 11. e5 Ng4 12. e6 fxe6 13. fxe6 Qd6 14. Ne4 Qe5 15. d3 Nf6 16. Be3 Nxe4 17. dxe4 Bg4 18. Qa4 Qxb2 19. Rc1 Bxe6 20. Bf4 Kb8 21. Rxc7 Ka8 22. Ba6 Qb1+ 23. Rc1 Qb6 24. Be2 g6 25. Qa3 Bg7 26. Bc7 Bb2 27. Bxb6 Bxa3 28. Bxd8 Bxc1 29. Bxe7 Bxa2 30. Kf2 Rc8 31. Rd1 Bb3 32. Rd7 Bf4 33. Bb4 h5 34. g3 Be5 35. Bd6 Ba4 0-1

[Event "WECF corr"]
[Site "corr"]
[Date "1999.??.??"]
[Round "?"]
[White "Femmel, Don"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "71"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. c3 e6 8. Bc4 Bd6 9. 0-0 Ngf6 10. Re1 0-0 11. Bg5 h6 12. Bxf6 Qxf6 13. Qb3 Bxg3 14. fxg3 b5 15. Bxe6 Nb6 16. Bg4 h5 17. Bh3 Nc4 18. Ne5 Nxe5 19. Rxe5 Rae8 20. Rae1 Rxe5 21. Rxe5 Qd6 22. a3 Qd8 23. Qd1 Re8 24. Qe2 Kf8 25. Rxe8+ Qxe8 26. Qxe8+ Kxe8 27. g4 h4 28. Kf2 Ke7 29. g3 hxg3+ 30. Kxg3 Kd6 31. Bg2 Bc2 32. g5 a5 33. h4 g6 34. b4 a4 35. Kf4 Bb3 36. Bf3 1/2-1/2

[Event "WECF email"]
[Site "email"]
[Date "1999.??.??"]
[Round "?"]
[White "Korosec, Stane"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "B05"]
[PlyCount "76"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 Nc6 6. c4 Nb6 7. exd6 cxd6 8. d5 Bxf3 9. Bxf3 Ne5 10. Be2 Rc8 11. b3 e6 12. Nc3 Qf6 13. Bb2 Be7 14. dxe6 fxe6 15. 0-0 0-0 16. Nb5 d5 17. Bg4 Bc5 18. Qe2 d4 19. Nxd4 Nxg4 20. Qxg4 Rce8 21. Rae1 e5 22. Nf3 Qf4 23. Qxf4 exf4 24. Bc3 Ba3 25. Re5 Rxe5 26. Bxe5 Nd7 27. Bc7 Nb8 28. Rd1 Nc6 29. Rd7 Bb4 30. Kf1 Rf5 31. h4 Ba3 32. Ke2 Rf8 33. Kd2 Bc5 34. Ke1 Ba3 35. Bd6 Bxd6 36. Rxd6 Nb4 37. a3 Re8+ 38. Kd2 Nc6 1/2-1/2

[Event "SEMI The Climb W email"]
[Site "SEMI email"]
[Date "1999.??.??"]
[Round "?"]
[White "Mora Herrera, Jesus"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A52"]
[PlyCount "72"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 Ngxe5 7. 0-0 0-0 8. Nc3 d6 9. b3 Re8 10. Bb2 a5 11. a3 Bf5 12. Nd4 Bg6 13. Qd2 Nd7 14. Nxc6 bxc6 15. Na4 Ba7 16. Qc3 f6 17. Rad1 Ne5 18. Rd2 Qc8 19. Rfd1 Qe6 20. h3 Be4 21. Kh2 Rf8 22. f3 Bxf3 23. gxf3 Bxe3 24. Rc2 Bf4+ 25. Kg2 Qf5 26. Bc1 Qg5+ 27. Kh1 Bxc1 28. Rcxc1 Qg3 29. f4 Qxf4 30. Rf1 Qh6 31. Rf2 f5 32. Rg1 Rae8 33. Nb2 Re7 34. Kh2 f4 35. Bd1 Qh4 36. Rgf1 f3 0-1

[Event "WECF email"]
[Site "email"]
[Date "1999.??.??"]
[Round "?"]
[White "Smith, G."]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "D20"]
[PlyCount "33"]
[EventDate "1999.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 Bb4+ 5. Nc3 exd4 6. Nxd4 Qe7 7. Bxc4 Nf6 8. 0-0 0-0 9. Bg5 Bxc3 10. bxc3 Qc5 11. Bxf6 Qxc4 12. Qh5 gxf6 13. Qh6 c5 14. Rad1 cxd4 15. e5 Nd7 16. exf6 Nxf6 17. Qg5+ 1/2-1/2

[Event "IECG CP.1998.P.00065"]
[Site "IECG email"]
[Date "1998.10.01"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Fedotov, Alexandr Pavlovich"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1680"]
[BlackElo "1604"]
[PlyCount "51"]
[EventDate "1998.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 g6 5. d5 Nb8 6. Qd4 f6 7. Nf3 Bg7 8. Nc3 d6 9. Be2 Nd7 10. 0-0 Nh6 11. Bf4 Qb6 12. Qd2 Nf7 13. Be3 Qd8 14. Nd4 Nb6 15. Rfc1 0-0 16. Ncb5 e6 17. dxe6 Ng5 18. Nc7 Rb8 19. Qa5 Na8 20. Qxa7 Nxc7 21. e7 Qxe7 22. Qxb8 Bh3 23. Rxc7 Qxe4 24. Qxb7 d5 25. Rxg7+ Kh8 26. Bf3 1-0

[Event "IECG CP.1998.P.00065"]
[Site "IECG email"]
[Date "1998.10.01"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Poretti, Ennio"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1680"]
[BlackElo "2172"]
[PlyCount "54"]
[EventDate "1998.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. Bf4 b5 6. cxd5 cxd5 7. e3 e6 8. Rc1 Bb7 9. Bd3 Nc6 10. 0-0 Bd6 11. Nxb5 Bxf4 12. exf4 axb5 13. Bxb5 0-0 14. Bxc6 Bxc6 15. Rxc6 Rxa2 16. Qb1 Qa8 17. Rfc1 g6 18. Ne5 Rb8 19. b4 Qa3 20. b5 Rb2 21. Rc8+ Rxc8 22. Rxc8+ Kg7 23. Qe1 Ne4 24. Rc7 Ra2 25. Rc1 Rxf2 26. Rc7 Ra2 27. Nd3 Qxd3 0-1

[Event "IECG CP.1998.P.00065"]
[Site "IECG email"]
[Date "1998.10.01"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Smits, Mark"]
[Result "1-0"]
[ECO "C31"]
[WhiteElo "1680"]
[BlackElo "800"]
[PlyCount "16"]
[EventDate "1998.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 exf4 4. Bb5+ Bd7 5. Qe2+ Qe7 6. Nc3 Qxe2+ 7. Ngxe2 c6 8. Bc4 Bb4 1-0

[Event "IECG CP.1998.P.00065"]
[Site "IECG email"]
[Date "1998.10.01"]
[Round "?"]
[White "Sheikhman, Vadim"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "1820"]
[BlackElo "1680"]
[PlyCount "85"]
[EventDate "1998.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 exd4 6. Nxd4 g6 7. Be3 Bg7 8. Qd2 Nf6 9. Bxc6 bxc6 10. f3 0-0 11. Bh6 c5 12. Nde2 Rb8 13. Bxg7 Kxg7 14. b3 Qe7 15. 0-0 Rfd8 16. Rad1 Bc8 17. Rfe1 c6 18. Nf4 Bb7 19. Na4 h6 20. c4 a6 21. Qc3 Kh7 22. e5 dxe5 23. Rxd8 Rxd8 24. Qxe5 Qxe5 25. Rxe5 Rd1+ 26. Kf2 Nd7 27. Re8 g5 28. Ne2 Rd3 29. Rd8 a5 30. Nc1 Rd2+ 31. Ke3 Rd1 32. Nd3 Ne5 33. Naxc5 Nxd3 34. Nxb7 Ra1 35. Rxd3 Rxa2 36. Rd2 Ra3 37. Kd4 h5 38. Kc5 Kg6 39. Kxc6 Rxb3 40. Nxa5 Rc3 41. c5 h4 42. h3 Kf6 43. Kd6 1-0

[Event "IECG CP.1998.P.00065"]
[Site "IECG email"]
[Date "1998.10.01"]
[Round "?"]
[White "Trani, Francesco"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "2005"]
[BlackElo "1680"]
[PlyCount "97"]
[EventDate "1998.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ITA"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 Be6 9. dxc5 Bxc5 10. Bg5 0-0 11. Rc1 Be7 12. Nd4 Rc8 13. Nxe6 fxe6 14. Bh3 Qd7 15. e4 d4 16. Qb3 Kf7 17. Bxf6 gxf6 18. Ne2 Bd6 19. Rfd1 Rfd8 20. Qf3 Be5 21. Qh5+ Kg8 22. Qg4+ Kf7 23. f4 Bc7 24. Qh4 Kg7 25. Kh1 d3 26. Rc3 d2 27. Qg4+ Kf7 28. Rc2 Ba5 29. Nc3 Bxc3 30. bxc3 Qe7 31. Qh5+ Kg8 32. Rcxd2 Rxd2 33. Rxd2 Rd8 34. Rxd8+ Nxd8 35. e5 f5 36. g4 fxg4 37. Qxg4+ Kf8 38. f5 exf5 39. Qxf5+ Qf7 40. Kg2 Qxf5 41. Bxf5 Nc6 42. Kg3 Nxe5 43. Bxh7 Nd7 44. Be4 Nc5 45. Kf4 Kg7 46. c4 Kh6 47. Bf3 b6 48. Be2 Na4 49. a3 1/2-1/2

[Event "FRIENDLY email"]
[Site "UECC email"]
[Date "1998.09.05"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Varela, Alejandro"]
[Result "0-1"]
[ECO "B99"]
[PlyCount "64"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 b5 11. Rhe1 Bb7 12. Qg3 b4 13. Nb1 Nc5 14. Bxf6 Bxf6 15. e5 dxe5 16. fxe5 Be7 17. Be2 0-0 18. Bf3 Rfd8 19. Bxb7 Nxb7 20. Re4 Rac8 21. c3 Qa5 22. Rg4 Bf8 23. Qf3 bxc3 24. Nxc3 Qxa2 25. Rf1 Rd7 26. Nc2 Qb3 27. Rd4 Rdc7 28. Qd3 g6 29. Rff4 Bh6 30. g3 Bxf4+ 31. gxf4 Rxc3 32. bxc3 Rxc3 0-1

[Event "FRIENDLY email"]
[Site "UECC email"]
[Date "1998.09.05"]
[Round "?"]
[White "Varela, Alejandro"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "100"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Qd2 d5 9. 0-0-0 Nxd4 10. Bxd4 dxe4 11. Nxe4 Nxe4 12. fxe4 Be6 13. Bxg7 Qxd2+ 14. Rxd2 Kxg7 15. Be2 Rac8 16. Rhd1 Rc5 17. b3 Rfc8 18. Kb2 b5 19. b4 Re5 20. Bf3 f5 21. exf5 Bxf5 22. Rc1 a6 23. a3 Re3 24. Bb7 Rb8 25. Bxa6 Rb6 26. Bxb5 Rxb5 27. c4 Rb8 28. Rc3 Re1 29. Rf2 Be4 30. c5 Rb1+ 31. Ka2 Ra8 32. Rb3 Rxb3 33. Kxb3 Bd5+ 34. Kb2 Bc6 35. Kb3 e5 36. g3 e4 37. Rf1 h5 38. h4 Ra7 39. Re1 Kf6 40. Re3 Ke5 41. Re1 Rf7 42. Kc4 Rf3 43. Rd1 Rxa3 44. Rd6 e3 45. Rxc6 e2 46. Rc8 Rc3+ 47. Kxc3 e1Q+ 48. Kb3 Qxg3+ 49. Ka4 Kd5 50. Ka5 Kc4 0-1

[Event "FRIENDLY email"]
[Site "UECC email"]
[Date "1998.07.17"]
[Round "?"]
[White "Gajate, Guillermo"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "74"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 dxc6 6. Qxd8+ Kxd8 7. Nc3 Bg7 8. Bd2 Be6 9. Rd1 Ke8 10. Na4 Nf6 11. Bd3 Nd7 12. Bc3 f6 13. b3 b5 14. Nb2 a5 15. a3 Kf7 16. f4 Nc5 17. 0-0 Bg4 18. Rd2 Rhd8 19. Rff2 Kg8 20. f5 Bh6 21. fxg6 hxg6 22. h3 Bxd2 23. Rxd2 Be6 24. e5 f5 25. g3 Bd5 26. Kf2 Be4 27. b4 axb4 28. Bxb4 Rd5 29. Bxc5 Rxc5 30. Bxe4 fxe4 31. Ke3 Rxe5 32. c4 Rxa3+ 33. Kf4 Re6 34. cxb5 cxb5 35. Re2 Rf6+ 36. Kg4 Rff3 37. Rg2 Rf1 0-1

[Event "IECG C1.1997.0.00097"]
[Site "IECG email"]
[Date "1998.01.08"]
[Round "1"]
[White "Bacino, Gustavo"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "81"]
[EventDate "1997.10.18"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Nxd5 7. Bc4 Nb6 8. Bb3 Bg7 9. Nf3 Nc6 10. a4 Nxd4 11. Nxd4 Qxd4 12. Qxd4 Bxd4 13. a5 Nd7 14. Nd5 Kd8 15. 0-0 Nc5 16. Bc4 Ne4 17. Rd1 Bxf2+ 18. Kf1 Bd7 19. Bd3 Bg4 20. Bf4 Bxd1 21. Rxd1 Nd6 22. Kxf2 Kd7 23. Re1 e6 24. Nf6+ Ke7 25. Be5 Rhc8 26. Nxh7 Rc5 27. Bf6+ Kd7 28. Bc3 Rd8 29. Nf6+ Kc8 30. Rc1 Kb8 31. b4 Rc7 32. a6 b6 33. Ke2 Rh8 34. Kd2 Kc8 35. Nd5 Rxh2 36. Nxc7 Rxg2+ 37. Ke3 Kxc7 38. Be5+ Kd7 39. Rd1 Kc8 40. Bxd6 Rb2 41. Bb5 1-0

[Event "IECG C1.1997.0.00097"]
[Site "IECG email"]
[Date "1998.01.08"]
[Round "1"]
[White "De Koning, Leen"]
[Black "Sciarretta, Dominic"]
[Result "1-0"]
[ECO "B99"]
[PlyCount "85"]
[EventDate "1997.10.18"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 b5 11. Rhe1 Bb7 12. Qg3 0-0-0 13. f5 e5 14. Nb3 Nc5 15. Kb1 Kb8 16. Bxf6 Bxf6 17. Nd5 Bxd5 18. exd5 Na4 19. Be4 g5 20. Qe3 Rc8 21. c3 h5 22. Bc2 Kb7 23. Nd2 Nb6 24. Ne4 Qe7 25. Bb3 Nd7 26. a4 Nc5 27. Nxc5+ Rxc5 28. axb5 axb5 29. Qe2 h4 30. g4 Qc7 31. Ba2 Ra8 32. h3 e4 33. Qd2 Qa5 34. b4 Qxa2+ 35. Qxa2 Rxa2 36. bxc5 Ra4 37. c6+ Kc7 38. Re3 b4 39. Rxe4 Bxc3 40. Re7+ Kd8 41. Rd7+ Kc8 42. Kc2 Ra2+ 43. Kb3 1-0

[Event "IECG C1.1997.0.00097"]
[Site "IECG email"]
[Date "1998.01.08"]
[Round "1"]
[White "De Koning, Leen"]
[Black "Vidanovic, Djordje"]
[Result "0-1"]
[ECO "A47"]
[PlyCount "122"]
[EventDate "1997.10.18"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 Bb7 4. e3 h6 5. Bxf6 exf6 6. Bd3 d5 7. 0-0 Bd6 8. c4 dxc4 9. Bxc4 0-0 10. Nc3 Nd7 11. Nh4 Kh7 12. Qg4 Qe8 13. Nd5 Bxd5 14. Bxd5 Rd8 15. Nf5 g6 16. Nxd6 cxd6 17. Rac1 Rc8 18. Qg3 Qe7 19. Qh4 Rfd8 20. a3 Nf8 21. Rfd1 Ne6 22. b4 Kg7 23. Qe4 f5 24. Qf3 Ng5 25. Qf4 Ne6 26. Qg3 Qd7 27. f3 Qa4 28. Qe1 Rxc1 29. Rxc1 Qxa3 30. Ra1 Qd3 31. Rxa7 Re8 32. Bc6 Rc8 33. d5 Rc7 34. Ra8 Ng5 35. Rd8 f6 36. Rb8 Re7 37. Rxb6 Rxe3 38. Rb7+ Nf7 39. Qc1 Re2 40. h3 Qd4+ 41. Kh2 Qe5+ 42. f4 Qe4 43. Qf1 Qe3 44. Bd7 Rf2 45. Qxf2 Qxf2 46. Be6 Qxf4+ 47. Kh1 h5 48. b5 g5 49. Rxf7+ Kg6 50. b6 g4 51. Ra7 Qf1+ 52. Kh2 h4 53. hxg4 fxg4 54. Bxg4 Qf4+ 55. Kh1 Qxg4 56. Re7 h3 57. gxh3 Qxh3+ 58. Kg1 Qg3+ 59. Kh1 Qf3+ 60. Kg1 Qd1+ 61. Kh2 Qc2+ 0-1

[Event "IECG C1.1997.0.00097"]
[Site "IECG email"]
[Date "1998.01.08"]
[Round "1"]
[White "Hofmann, Thorsten"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "125"]
[EventDate "1997.10.18"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Nbd2 cxd4 7. Bc4 Qh5 8. Qb3 b6 9. cxd4 Nc6 10. 0-0 Bd7 11. Ne5 e6 12. Nxc6 Bxc6 13. Bxe6 Bd6 14. f4 0-0 15. Nf3 Rae8 16. Bc4 b5 17. Bd3 a6 18. Ne5 Bb7 19. Bd2 Rd8 20. a4 Bd5 21. Qc2 Rc8 22. Qb1 Rb8 23. axb5 axb5 24. Ra6 Be7 25. Re1 Rfd8 26. Re3 Bb7 27. Rh3 Qxh3 28. gxh3 Bxa6 29. Qa2 Nd5 30. Qxa6 Ra8 31. Qxb5 Rab8 32. Qc4 Rbc8 33. Nc6 Rd6 34. Qxd5 Rcxc6 35. Qe5 Bf8 36. d5 Rc8 37. Qf5 Rg6+ 38. Kf2 Bc5+ 39. Be3 Bxe3+ 40. Kxe3 Re8+ 41. Kd4 Kf8 42. Qd7 Rf6 43. Bb5 Rb8 44. Kc5 Rfb6 45. d6 Kg8 46. b3 h6 47. Bc4 R6b7 48. Qxb7 Rxb7 49. Kc6 Rb8 50. Kc7 Rf8 51. d7 Kh7 52. d8Q Rxd8 53. Kxd8 Kg6 54. Bd3+ Kh5 55. b4 Kh4 56. Bf5 g5 57. fxg5 Kxg5 58. Bd7 f5 59. Bxf5 Kxf5 60. b5 Kf4 61. b6 Kf3 62. b7 Kg2 63. b8Q 1-0

[Event "IECG C1.1997.0.00097"]
[Site "IECG email"]
[Date "1998.01.08"]
[Round "1"]
[White "Krepp, James B"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "83"]
[EventDate "1997.10.18"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Qa5+ 7. Nc3 Bb4 8. 0-0 Bxc3 9. bxc3 Ne7 10. Bg5 Nd7 11. Rfb1 Nb6 12. Nd2 h6 13. Bxe7 Kxe7 14. c4 dxc4 15. Nxc4 Qa6 16. Nxb6 axb6 17. Qg3 Kf8 18. Qc3 b5 19. a3 Qa5 20. Qe3 Ke7 21. Qg3 Qd2 22. c4 Rhd8 23. cxb5 Qxd4 24. bxc6 bxc6 25. Qxg7 Rab8 26. Qf6+ Ke8 27. Rf1 Rb3 28. a4 Rd5 29. Rae1 Qxa4 30. Qxh6 Qd4 31. h3 Rb2 32. Qh8+ Ke7 33. Re3 Qf4 34. Ra3 Rb7 35. Re1 Rd8 36. Qg7 Qb4 37. Rea1 Qd4 38. Ra4 c5 39. Rxd4 cxd4 40. h4 d3 41. h5 d2 42. Rd1 1-0

[Event "ICCF email"]
[Site "ICCF email"]
[Date "1998.??.??"]
[Round "?"]
[White "Barr, Epstein"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "41"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Nf3 Nc6 4. d4 exd4 5. Nd5 Be7 6. Bc4 Nxe4 7. Nxd4 Bc5 8. Qg4 Nxd4 9. Qxe4+ Ne6 10. Bg5 f6 11. Bf4 Kf8 12. 0-0-0 c6 13. Nc3 d5 14. Nxd5 cxd5 15. Rxd5 Qb6 16. Re1 Bxf2 17. Rd6 Bxe1 18. Rxb6 axb6 19. Bxe6 Bxe6 20. Qxe6 Bb4 21. Qxb6 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Cassimon, Marc"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "38"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. f3 e5 2. Kf2 Nc6 3. g3 Bc5+ 4. e3 d5 5. b3 d4 6. Qe1 Nf6 7. Ba3 Qe7 8. Bxc5 Qxc5 9. c4 0-0 10. a3 Be6 11. Bh3 Qb6 12. Bxe6 fxe6 13. b4 dxe3+ 14. dxe3 Ng4+ 15. Kg2 Nxe3+ 16. Kh3 Rf6 17. g4 Qd4 18. Nc3 Rxf3+ 19. Nxf3 Qxg4# 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Cotti, Paul M"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "1819"]
[BlackElo "1772"]
[PlyCount "76"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. b4 d6 11. Qe3 Qd7 12. Ne5 Qc8 13. Bxb7 Qxb7 14. Nd3 Qe4 15. Nf4 Rf6 16. Qxe4 fxe4 17. d5 e5 18. Ne6 Na6 19. Bd2 c6 20. Rfc1 h6 21. a4 Rc8 22. a5 bxa5 23. b5 cxd5 24. cxd5 Rxc1+ 25. Rxc1 Nb4 26. Bxb4 axb4 27. Rb1 Rf5 28. Rxb4 e3 29. fxe3 Bg5 30. Nxg5 hxg5 31. e4 Rf7 32. Ra4 g4 33. Ra6 Rd7 34. Kf2 Kf8 35. Ke1 Ke7 36. Kd2 Rc7 37. Kd3 Rb7 38. Kc4 Rc7+ 1/2-1/2

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Alexander, Alasdair"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "1772"]
[BlackElo "1847"]
[PlyCount "118"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. Nxc6 bxc6 9. e5 Nd5 10. Nxd5 cxd5 11. Qxd5 Be6 12. Qc6+ Bd7 13. Qa6 Bxe5 14. c3 0-0 15. Bf3 Rb8 16. 0-0-0 Qc7 17. Qxa7 Qc4 18. Qa3 Be6 19. Ba7 Rb5 20. Rhe1 Qxa2 21. Qxa2 Bxa2 22. g3 Bb3 23. Rd3 Ra5 24. Bd4 Ra1+ 25. Kd2 Ra2 26. Bxe5 dxe5 27. Rb1 Rb8 28. Kc1 e6 29. Rd7 Kf8 30. h3 Rb5 31. Rc7 Kg7 32. Be2 Rd5 33. Rb7 Ba4 34. f3 Rd6 35. Ra7 g5 36. Ra5 Kf6 37. Ra8 h5 38. Rh8 g4 39. hxg4 hxg4 40. fxg4 Bc6 41. Bc4 Ra7 42. Bb3 Bf3 43. Rg8 e4 44. g5+ Ke5 45. Rc8 Ra5 46. Bc4 e3 47. b4 Ra7 48. Rc5+ Ke4 49. Bb3 e2 50. Kb2 Rd2+ 51. Bc2+ Ke3 52. Re5+ Kf2 53. g6 f6 54. g7 Rxg7 55. Rxe6 f5 56. Rc1 Be4 57. Re5 e1Q 58. Rxe1 Rxc2+ 59. Kb3 Kxe1 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Bretz, Dennis"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1772"]
[BlackElo "1822"]
[PlyCount "62"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Na3 Qd8 7. Nc2 Nc6 8. Be2 Be7 9. 0-0 cxd4 10. Ncxd4 Nxd4 11. cxd4 0-0 12. Qb3 b6 13. Bd2 Bb7 14. Rac1 Bd5 15. Qa4 Bd6 16. Qa6 Qb8 17. Rfd1 Bb7 18. Qd3 Be4 19. Qb3 Bd5 20. Qa4 a5 21. Bg5 Qb7 22. Ne5 Bxg2 23. f3 Bh3 24. Bxf6 gxf6 25. Nd7 Rfd8 26. Nxf6+ Kh8 27. Kh1 Qe7 28. Ne4 Bxh2 29. d5 Be5 30. f4 Qh4 31. Ng5 Bf5+ 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Bryant, Barry"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "1772"]
[BlackElo "1556"]
[PlyCount "107"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nxd4 6. Qxd4 d6 7. e4 e5 8. Qd1 Be6 9. Be2 Rc8 10. Qb3 b6 11. 0-0 Be7 12. Bg5 0-0 13. Rad1 Qd7 14. Rd2 h6 15. Bxf6 Bxf6 16. Rfd1 Be7 17. Nb5 Rfd8 18. Qa4 a5 19. Qc2 Rc5 20. b3 Rc6 21. Qc3 Rdc8 22. Qg3 f5 23. exf5 Bxf5 24. Bf3 e4 25. Bh5 Bg5 26. Rd5 Be6 27. Rxd6 Qe7 28. Qe5 Rxd6 29. Nxd6 Rd8 30. Nxe4 Rxd1+ 31. Bxd1 Qd7 32. Bf3 Bd8 33. Nc3 Bc7 34. Qxe6+ Qxe6 35. Bd5 Kf7 36. f4 Bxf4 37. Bxe6+ Kxe6 38. Nd5 Be5 39. Kf2 g5 40. a4 Bd4+ 41. Kf3 h5 42. g4 h4 43. Ke4 Bg1 44. h3 Bc5 45. Nc7+ Kf6 46. Kd5 Bf2 47. Kd6 Bc5+ 48. Kc6 Ke5 49. Nd5 Ke4 50. Nxb6 Bf2 51. Nd5 Kf3 52. Kb5 Kg3 53. c5 Kxh3 54. c6 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Cassimon, Marc"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "65"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. f3 e5 2. Kf2 d5 3. e3 Nf6 4. d4 Bd6 5. c4 exd4 6. exd4 0-0 7. c5 Be7 8. Nc3 b6 9. cxb6 axb6 10. Bf4 Nc6 11. Nb5 Bd6 12. Nxd6 cxd6 13. Bb5 Ne7 14. Ne2 Ra5 15. Qb3 Ba6 16. Bxa6 Rxa6 17. Qb4 Nf5 18. g4 Nxg4+ 19. fxg4 Qh4+ 20. Bg3 Qxg4 21. Rhe1 Re8 22. Qb5 Raa8 23. Qxd5 Nxg3 24. Nxg3 Qf4+ 25. Kg1 h6 26. Rxe8+ Rxe8 27. Rf1 Qe3+ 28. Kh1 Re6 29. Qb7 Rf6 30. Qa8+ Kh7 31. Rxf6 gxf6 32. Qe4+ Qxe4+ 33. Nxe4 1-0

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Colberg, Joerg Marc"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "1772"]
[BlackElo "2003"]
[PlyCount "80"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 h6 9. N5f3 c5 10. dxc5 Bxc5 11. Ne5 Nbd7 12. Ngf3 Qc7 13. 0-0 0-0 14. Bf4 Bd6 15. Nxd7 Bxd7 16. Bxd6 Qxd6 17. Rad1 Qb6 18. c3 Rfd8 19. Ne5 Bc6 20. Nxc6 Qxc6 21. Rfe1 a6 22. c4 Rd7 23. Bc2 Rad8 24. Rxd7 Rxd7 25. Rd1 Kf8 26. Rxd7 Nxd7 27. Be4 Qc7 28. Bf3 Nb8 29. Qd2 Nc6 30. Bxc6 bxc6 31. c5 Ke7 32. h3 f6 33. b4 Qd7 34. Qe2 Qb7 35. a3 Qb5 36. Qd2 Qc4 37. Qd6+ Kf7 38. Qd7+ Kg6 39. Qe8+ Kg5 40. Qxc6 Qc1+ 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Jakimov, Alexander"]
[Result "1-0"]
[ECO "A58"]
[PlyCount "35"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. g3 g6 7. b3 d6 8. Nc3 Bg7 9. Bd2 Nbd7 10. Nf3 Nb6 11. e4 Bxf1 12. Kxf1 0-0 13. a4 c4 14. a5 cxb3 15. axb6 Rxa1 16. Qxa1 Nxe4 17. Qa5 b2 18. Nb1 1-0

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Johanson, Frans"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1772"]
[BlackElo "1890"]
[PlyCount "72"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. e3 Bg4 4. Nbd2 e6 5. h3 Bh5 6. c4 c6 7. Bd3 Nbd7 8. g4 Bg6 9. Bxg6 hxg6 10. g5 Ne4 11. Qb3 Rb8 12. cxd5 cxd5 13. h4 Be7 14. Nxe4 dxe4 15. Nd2 Bxg5 16. Nxe4 Be7 17. Bd2 Qb6 18. Qxb6 Nxb6 19. Rc1 Rc8 20. Nc5 Rc7 21. Ke2 Rh5 22. Nd3 Rc8 23. Rxc8+ Nxc8 24. Rc1 Nd6 25. Bb4 a5 26. Bxd6 Bxd6 27. Rc8+ Kd7 28. Ra8 Kc6 29. Rg8 g5 30. Rxg7 gxh4 31. Rxf7 h3 32. f4 h2 33. Nf2 h1Q 34. Nxh1 Rxh1 35. f5 Rh2+ 36. Kd3 e5 0-1

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Knudsen, Niels M"]
[Result "1-0"]
[ECO "D39"]
[PlyCount "109"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Bb4 3. Nf3 Nf6 4. d4 d5 5. Bg5 dxc4 6. e4 c5 7. e5 cxd4 8. Qa4+ Nc6 9. 0-0-0 Bd7 10. Ne4 Nxe4 11. Bxd8 Rxd8 12. Nxd4 Nxf2 13. Nxc6 Nxd1 14. Qxb4 Bxc6 15. Bxc4 Nf2 16. Rf1 Nd3+ 17. Bxd3 Rxd3 18. Qc5 a6 19. Rd1 Rxd1+ 20. Kxd1 Rf8 21. Qc4 h5 22. Kd2 Bxg2 23. Qc8+ Ke7 24. Qc5+ Ke8 25. Qg1 Bd5 26. Qxg7 Bxa2 27. Qh7 Bd5 28. Qxh5 Rg8 29. Qh4 Rg2+ 30. Kc3 b5 31. b4 Re2 32. Qh8+ Ke7 33. Qb8 f5 34. Qa7+ Kf8 35. Qxa6 Bc4 36. Qd6+ Kg7 37. h4 Re3+ 38. Kc2 Re2+ 39. Kd1 Rg2 40. Qd8 Rh2 41. Qg5+ Kf8 42. Qf6+ Kg8 43. Qg6+ Kf8 44. h5 Bd5 45. h6 Rh1+ 46. Ke2 Rh2+ 47. Ke3 Rg2 48. Qh7 Rg4 49. Kd3 Rg3+ 50. Kd4 Rg4+ 51. Kc5 Bc4 52. Kd6 Bb3 53. Qh8+ Kf7 54. Qf6+ Kg8 55. Ke7 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Korosec, Stane"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "73"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 c5 3. d5 exd5 4. exd5 d6 5. Nf3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. Nc3 Na6 9. Re1 Nc7 10. a4 Re8 11. Bf4 Bf5 12. Bc4 Nh5 13. Bd2 Qd7 14. Ng5 Bxg5 15. Rxe8+ Rxe8 16. Bxg5 Bg6 17. Bh4 a6 18. Be2 Nf4 19. Bf3 Qf5 20. Bg3 Qf6 21. h4 h6 22. h5 Bh7 23. Qd2 Nh3+ 24. gxh3 Qxf3 25. Bxd6 Rc8 26. Re1 Ne8 27. Bg3 Qxh5 28. d6 Nf6 29. Nd5 Ne4 30. Ne7+ Kh8 31. Qa5 Nxg3 32. d7 Rg8 33. fxg3 Qg5 34. Kh2 b6 35. Qxa6 Qd2+ 36. Re2 Qxd7 37. Nxg8 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Maymir, Fred"]
[Result "1/2-1/2"]
[ECO "E92"]
[PlyCount "85"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. Be3 Ng4 8. Bg5 f6 9. Bh4 Nc6 10. d5 Ne7 11. h3 Nh6 12. 0-0 f5 13. Qc2 fxe4 14. Nxe4 Nhf5 15. Bg5 h6 16. Bd2 c6 17. Qd3 b5 18. dxc6 bxc4 19. Qxc4+ d5 20. c7 Qd7 21. Qb3 Qxc7 22. g4 Rb8 23. Rac1 Qxc1 24. Qxb8 Qc2 25. Bd1 Qxe4 26. Re1 Qd3 27. gxf5 Qxf5 28. Qxa7 Nc6 29. Qc7 Nd4 30. Bb4 Nxf3+ 31. Bxf3 Qxf3 32. Bxf8 Qxf8 33. Qc6 Bxh3 34. Qxd5+ Kh7 35. Re3 Bc8 36. Rc3 Qf5 37. Rc7 Qg5+ 38. Qg2 Qd8 39. Qc6 Qd1+ 40. Kh2 Qh5+ 41. Kg1 Bf5 42. Qb7 Qg4+ 43. Kh2 1/2-1/2

[Event "ICCF email"]
[Site "ICCF email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Morihama, Nicolau"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "76"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 h6 9. N5f3 c5 10. dxc5 Bxc5 11. Ne5 Nbd7 12. Ngf3 Nxe5 13. Nxe5 0-0 14. 0-0 b6 15. Bf4 Bb7 16. Rad1 Qe7 17. c3 Rfd8 18. Rfe1 Rac8 19. Ng4 Nd5 20. Bg3 Qg5 21. h4 Qe7 22. Ba6 Bxa6 23. Qxa6 Nf6 24. Nxf6+ Qxf6 25. Qxa7 Ra8 26. Qc7 Rxd1 27. Rxd1 Rxa2 28. Qd8+ Qxd8 29. Rxd8+ Kh7 30. b4 Be7 31. Rb8 Bf6 32. Rxb6 Bxc3 33. b5 Kg6 34. Rc6 Bf6 35. b6 Rb2 36. Rd6 Kf5 37. Kf1 g5 38. hxg5 hxg5 1/2-1/2

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Siefring, Carl L"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "1772"]
[BlackElo "1980"]
[PlyCount "110"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 e6 5. Bxc4 c5 6. 0-0 Nf6 7. b3 cxd4 8. Qxd4 Qxd4 9. exd4 b5 10. Be2 Bd6 11. a4 bxa4 12. Rxa4 0-0 13. Nc3 Bb7 14. Ne5 Nbd7 15. Nc4 Bc7 16. Re1 Nd5 17. Nxd5 Bxd5 18. Bd2 Rfb8 19. Ra3 Bd8 20. b4 Be7 21. Rb1 Be4 22. Rbb3 Bc6 23. Rb2 Bb5 24. Kf1 Rd8 25. Ne5 Nxe5 26. Bxb5 Nf3 27. Rxa6 Nxd2+ 28. Rxd2 Rab8 29. Bc6 Bxb4 30. Rd3 Bc5 31. Ra4 e5 32. d5 Rb1+ 33. Ke2 Rb2+ 34. Rd2 Rxd2+ 35. Kxd2 Bxf2 36. g4 h5 37. h3 hxg4 38. hxg4 Kh7 39. Kd3 Kg6 40. Ra2 Bd4 41. Ke4 Kg5 42. Rh2 g6 43. Rg2 f6 44. Kf3 Bc5 45. Rc2 Bd6 46. Bb5 Rb8 47. Be2 f5 48. Rc6 e4+ 49. Kf2 Be5 50. Re6 Bd4+ 51. Ke1 Kf4 52. Kd1 Ke3 53. Ba6 fxg4 54. Rxg6 Rb1+ 55. Kc2 Rb6 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Van Bommel, Ton"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "1772"]
[BlackElo "1568"]
[PlyCount "90"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. d4 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. dxe6 fxe6 12. Bc2 Qc7 13. Ng5 Nc5 14. 0-0 Bb7 15. e5 Qxe5 16. Re1 Qd6 17. Qxd6 Bxd6 18. Nxe6 Nxe6 19. Rxe6+ Kd7 20. Bf5 Kc7 21. Bh6 Ne8 22. Be3 Bc8 23. Nd5+ Kb8 24. Nb6 Bxe6 25. Bxe6 Ra7 26. Nd7+ Rxd7 27. Bxd7 Nf6 28. Bf5 Be5 29. Rb1 g6 30. Bh3 Nd5 31. Bd2 Rf8 32. Bg4 Kc7 33. Bf3 Kd6 34. Bg5 Bd4 35. Bh4 a5 36. Bg3+ Kc5 37. Bxd5 Kxd5 38. Rd1 b4 39. Bc7 c3 40. Bb6 Rf4 41. g3 Re4 42. bxc3 bxc3 43. Bxa5 c2 44. Rc1 Re2 45. Bb4 Ke4 0-1

[Event "ICCF email"]
[Site "ICCF email"]
[Date "1998.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Williams, Derek"]
[Result "1-0"]
[ECO "C60"]
[PlyCount "69"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Bxc6 Nxc6 6. Nc3 Bc5 7. Nxe5 Nxe5 8. d4 Bd6 9. dxe5 Bxe5 10. Nd5 0-0 11. f4 Bd6 12. Be3 Re8 13. Qf3 a5 14. Bd4 c6 15. Qg3 Be5 16. Bxe5 Rxe5 17. fxe5 cxd5 18. exd5 b5 19. Qf2 Qe8 20. Qb6 b4 21. Rae1 Ra6 22. Qc7 h6 23. Rf3 Ra8 24. a3 bxa3 25. Rxa3 a4 26. b3 Kh7 27. Rxa4 Rxa4 28. bxa4 Ba6 29. Rb1 f6 30. e6 dxe6 31. d6 Qc8 32. Qxc8 Bxc8 33. a5 e5 34. a6 Bxa6 35. d7 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Femmel, Don"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "C42"]
[PlyCount "85"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Re1 Bf5 10. Nc3 Nxc3 11. bxc3 Bxd3 12. Qxd3 Nd7 13. Bg5 dxc4 14. Qxc4 Nb6 15. Qb3 Qc7 16. c4 c5 17. d5 Rae8 18. Bd2 Qd7 19. Ba5 Bc7 20. Qd3 f6 21. Rad1 Rxe1+ 22. Rxe1 Re8 23. Rxe8+ Qxe8 24. d6 Qd7 25. Bxb6 Bxb6 26. Nd2 Qe6 27. d7 Bd8 28. Ne4 b6 29. h4 Kf8 30. g3 g6 31. Nc3 f5 32. Kg2 Ke7 33. Nd5+ Kf7 34. Nf4 Qe4+ 35. Qxe4 fxe4 36. Kf1 Ke7 37. Ke2 Kxd7 38. Ke3 Bf6 39. Kxe4 Bd4 40. f3 Kd6 41. h5 g5 42. Nh3 h6 43. Kf5 1/2-1/2

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Groudeau, Alec"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "60"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 c6 3. d4 Nf6 4. Bd3 e5 5. 0-0 Nbd7 6. Be3 Be7 7. c4 Ng4 8. Bc1 exd4 9. Nxd4 Nc5 10. Be2 Nf6 11. f3 Qb6 12. Kh1 0-0 13. Nc3 Re8 14. Rb1 a5 15. Bg5 Ng4 16. Bxe7 Ne3 17. Qc1 Nxf1 18. Bh4 Nxh2 19. Kxh2 Re5 20. f4 Re8 21. Qe3 a4 22. b4 axb3 23. Nxb3 Ra3 24. Be1 Qc7 25. Nxc5 dxc5 26. Qxc5 Qxf4+ 27. Kg1 Ra8 28. Rb3 Qc1 29. Kf1 Qf4+ 30. Qf2 Qh6 0-1

[Event "WECF m email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Harvey, Robert"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "28"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bb5 c6 5. Bc4 Ngf6 6. Ng5 d5 7. exd5 cxd5 8. dxe5 Nxe5 9. Qe2 Bd6 10. Bd3 0-0 11. Nc3 Re8 12. 0-0 h6 13. Nf3 Nxf3+ 14. Qxf3 Bg4 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Honkakoski, Paavo Ilmari"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1785"]
[BlackElo "1772"]
[PlyCount "59"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. c4 dxc4 5. e3 c5 6. Bxc4 cxd4 7. exd4 Bg7 8. Nc3 Nc6 9. Qh5 0-0 10. Nf3 Qd6 11. 0-0 Nxd4 12. Rad1 Nxf3+ 13. Qxf3 Qc5 14. Qe2 e6 15. Rd2 f5 16. Rfd1 b6 17. Nb5 a6 18. Nd6 b5 19. Bb3 Rb8 20. Qf3 a5 21. Rc2 Qb6 22. Rc6 Qa7 23. Qg3 a4 24. Bc2 h5 25. Qg5 Bd7 26. Rc3 h4 27. Rh3 Bc6 28. Qxh4 Rfd8 29. Rg3 f6 30. Qxf6 1-0

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Jelen, Jean Luc"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1825"]
[BlackElo "1772"]
[PlyCount "119"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bg5 Be7 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. 0-0 h6 11. Bf4 Qb5 12. Bxc7 Rc8 13. Be5 Qxb2 14. d5 Qa3 15. d6 Rd8 16. Nd4 Bxd6 17. Nb5 Bxe5 18. Nxa3 Rxd1 19. Raxd1 Ke7 20. Nc4 Bb8 21. Ne3 Rc8 22. Rfe1 Bf4 23. Nd5+ Nxd5 24. Rxd5 Rxc2 25. Rd4 Be5 26. Rde4 Bd6 27. R4e2 Rc4 28. Rd1 Bb4 29. g3 g5 30. Kg2 a6 31. Kf3 h5 32. h3 f5 33. Kg2 h4 34. gxh4 Rxh4 35. Rd5 g4 36. hxg4 Rxg4+ 37. Kf1 b6 38. Rxf5 Bc3 39. Rh5 Rf4 40. Rh6 Bf6 41. Re3 Kd6 42. Ke2 Be5 43. Rd3+ Bd4 44. f3 Kd5 45. Rh8 e5 46. Rd1 b5 47. Rh6 a5 48. Rh8 Kc5 49. Rb8 Rh4 50. Rc1+ Kd6 51. Rc2 Rh2+ 52. Kd3 Rh3 53. Rf8 Kd5 54. Rd8+ Ke6 55. Rc6+ Ke7 56. Rb8 Rxf3+ 57. Ke4 Kd7 58. Kd5 Rc3 59. Rb7+ Kd8 60. Rg6 1-0

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Knapen, Joep"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "50"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Na4 Bb6 7. Nxb6 axb6 8. Ng5 0-0 9. Bd2 Bg4 10. f3 Bd7 11. 0-0 h6 12. Nh3 Bxh3 13. gxh3 d5 14. exd5 Nxd5 15. Kh1 Re8 16. Rg1 Nf4 17. Bxf4 exf4 18. Qd2 Qf6 19. c3 Ne5 20. Bd5 Rad8 21. Be4 Nc4 22. Qf2 Ne3 23. Rae1 c5 24. b4 Qxc3 25. Qh4 f5 1/2-1/2

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Lagerlof, Folke"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1715"]
[BlackElo "1772"]
[PlyCount "81"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 h5 8. Nf4 Bh7 9. Nxh5 cxd4 10. Nb5 Nc6 11. Nxd4 Nxe5 12. Bb5+ Nd7 13. Bg5 Qc7 14. Qe2 a6 15. Nxe6 fxe6 16. Qxe6+ Ne7 17. Nxg7+ Kd8 18. Bxd7 Qxd7 19. 0-0-0 Kc8 20. Rhe1 Rg8 21. Qxd7+ Kxd7 22. Ne6 Re8 23. f4 Bg6 24. c4 Bf7 25. cxd5 Nc8 26. f5 Nb6 27. Rd4 Rc8+ 28. Kd1 Bd6 29. Ree4 Rge8 30. Bd2 Bg8 31. h5 Na8 32. g5 Nc7 33. h6 Nb5 34. Rd3 Be7 35. g6 Nd6 36. Rf4 Bf6 37. Bc3 Bxc3 38. Rxc3 Nb5 39. Rxc8 Rxc8 40. h7 Bxh7 41. gxh7 1-0

[Event "ICCF email"]
[Site "ICCF email"]
[Date "1998.??.??"]
[Round "?"]
[White "Ligeti, George"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "56"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Nc3 d6 6. h3 0-0 7. d3 Na5 8. Bb3 Nxb3 9. axb3 c6 10. Na4 Bb4 11. c3 Ba5 12. b4 Bc7 13. Be3 b5 14. Nc5 dxc5 15. Bxc5 Bd6 16. Bxa7 Qc7 17. Bc5 Rxa1 18. Qxa1 Rd8 19. Bxd6 Qxd6 20. Rd1 Nxe4 21. Nxe5 Nxf2 22. Kxf2 Qxe5 23. d4 Qf4+ 24. Kg1 Be6 25. Qc1 Qg3 26. Rf1 Bxh3 27. Qd2 Re8 28. Qf4 Qxg2# 0-1

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Otto, Jeffrey M"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1886"]
[BlackElo "1772"]
[PlyCount "81"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Nbd7 8. Nc3 Qxe2+ 9. Bxe2 Be7 10. 0-0 0-0 11. d4 Nb6 12. Bd3 Bg4 13. Rfe1 Rae8 14. Nb5 Bxf3 15. gxf3 Bd8 16. Bxf6 Rxe1+ 17. Rxe1 Bxf6 18. Nxc7 Bxd4 19. c3 Be5 20. Be4 Rc8 21. Nb5 Rc5 22. Nxa7 Ra5 23. f4 Bxc3 24. bxc3 Rxa7 25. Rd1 d5 26. Bxd5 Nxd5 27. Rxd5 Kf8 28. Rd7 Ke8 29. Rc7 Rxa2 30. Rxb7 Ra4 31. Rb4 Rxb4 32. cxb4 Kd7 33. Kg2 Kc6 34. Kf3 Kb5 35. Ke4 Kxb4 36. Kd5 Kc3 37. Kd6 Kd4 38. Ke7 f5 39. Kf7 Ke4 40. Kxg7 h5 41. Kg6 1/2-1/2

[Event "WECF email"]
[Site "Email"]
[Date "1998.??.??"]
[Round "?"]
[White "Smith, G."]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "A09"]
[PlyCount "64"]
[EventDate "1998.??.??"]
[EventType "swiss (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 dxc4 3. Na3 a6 4. Nxc4 b5 5. Ne3 Bb7 6. d4 e6 7. Nc2 Nf6 8. e3 c5 9. Be2 Nc6 10. 0-0 Bd6 11. dxc5 Bxc5 12. Qxd8+ Rxd8 13. b3 0-0 14. Bb2 Rd7 15. Bxf6 gxf6 16. a4 b4 17. Rfd1 Rfd8 18. Rxd7 Rxd7 19. Rc1 Na5 20. Na1 Bb6 21. Kf1 Kf8 22. Ne1 Rc7 23. Rxc7 Bxc7 24. Bf3 Nc6 25. Nec2 a5 26. Nd4 Ba6+ 27. Be2 Bxe2+ 28. Kxe2 Nxd4+ 29. exd4 Ke7 30. Nc2 f5 31. Kf3 Kd7 32. g3 Kd6 1/2-1/2

[Event "IECG FI.1998.0.00001 Jim Krepp mem"]
[Site "IECG email"]
[Date "1998.??.??"]
[Round "?"]
[White "Veenstra, Arnt"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "1966"]
[BlackElo "1772"]
[PlyCount "65"]
[EventDate "1998.03.27"]
[EventType "tourn (corr)"]
[EventRounds "14"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. Bxd7+ Qxd7 9. d5 dxe5 10. h3 e4 11. Nxe4 Nf6 12. Nxf6+ Bxf6 13. 0-0 0-0 14. c4 e6 15. Ne5 Qd6 16. Qb3 b6 17. Be3 exd5 18. cxd5 Nd7 19. Ng4 Rfe8 20. Rad1 h5 21. Nxf6+ Nxf6 22. Bf2 Re2 23. f5 gxf5 24. Bg3 Qd7 25. Bh4 Ne4 26. Qf3 Rxb2 27. Qxh5 f6 28. Rxf5 Qg7 29. Qf3 Nd6 30. Rxf6 Rf8 31. Rf1 Rf7 32. Rxf7 Nxf7 33. Bf6 1-0

[Event "IECC KO email"]
[Site "IECC email"]
[Date "1997.12.17"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Glew, David"]
[Result "1/2-1/2"]
[ECO "C09"]
[PlyCount "141"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nc6 6. Bb5 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nbd2 0-0 10. Nb3 Bb6 11. Re1 Nf5 12. Bd3 Bc7 13. Qc2 g6 14. Bd2 Nh4 15. Nfd4 Ne5 16. Bh6 Re8 17. Bb5 Bd7 18. Bxd7 Qxd7 19. f4 Ng4 20. Bg5 Nf5 21. Nxf5 Qxf5 22. Qxf5 gxf5 23. h3 Bb6+ 24. Nd4 Ne3 25. Rac1 Re4 26. b3 Rae8 27. Kf2 f6 28. Bxf6 Rxf4+ 29. Kg1 Rfe4 30. Kh1 f4 31. Nf3 Nf5 32. Red1 Re2 33. Re1 Kf7 34. Be5 Ng3+ 35. Kh2 Rxa2 36. Red1 Be3 37. Rb1 Ke6 38. c4 dxc4 39. bxc4 b6 40. Rd6+ Kf7 41. Rbd1 Ne4 42. Rh6 Nd2 43. Nxd2 Bxd2 44. Rxh7+ Kg6 45. Rg7+ Kf5 46. Bd4 Re4 47. Rd7 Ke6 48. Rd8 Bb4 49. Rg8 f3 50. Rg6+ Ke7 51. Rg7+ Kf8 52. Rg6 Be7 53. Rg3 Bd6 54. Bg7+ Ke7 55. Bf8+ Kxf8 56. Rxd6 Ke7 57. Rdg6 Rf4 58. Rg7+ Kd6 59. R7g5 Rd2 60. R3g4 Rxg4 61. hxg4 Rxg2+ 62. Kh3 Rc2 63. Rf5 Rxc4 64. Rxf3 b5 65. g5 Rc7 66. Rf5 Rb7 67. g6 Ke6 68. g7 Rxg7 69. Rxb5 Kd6 70. Ra5 Kc6 71. Ra1 1/2-1/2

[Event "IECC KO email"]
[Site "IECC email"]
[Date "1997.12.17"]
[Round "?"]
[White "Glew, David"]
[Black "De Koning, Leen"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "157"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. Nd2 0-0-0 10. Qe4 Nb6 11. c5 Bxf1 12. cxb6 Ba6 13. bxa7 Kb7 14. Nb3 f6 15. Be3 Qb4+ 16. Qxb4+ Bxb4+ 17. Kd1 fxe5 18. a3 Be7 19. Re1 Rhe8 20. Na5+ Ka8 21. Rc1 Bf6 22. Rc2 e4 23. b4 Bd3 24. Rc5 Kxa7 25. Rxc6+ Kb8 26. Rc5 Bb2 27. a4 Be5 28. b5 h6 29. Rd5 Bd6 30. f4 g6 31. Bd2 Rf8 32. g3 Rc8 33. Rd4 Rf5 34. Nb3 Kb7 35. Nc1 Bb1 36. Ne2 Ba2 37. Kc2 Be6 38. Rxe4 Bd5 39. Rd4 Bc5 40. g4 Bxd4 41. gxf5 Be4+ 42. Kd1 Bb6 43. fxg6 Bxg6 44. a5 Bc5 45. Nc3 c6 46. b6 Ba3 47. Re3 Bc5 48. Re5 Ba3 49. Na4 Rf8 50. h4 Bd6 51. Nc5+ Bxc5 52. Rxc5 d5 53. Rc3 d4 54. Rc4 Rd8 55. Rc5 Rf8 56. Re5 Rf7 57. Re6 Rg7 58. Bb4 Bf5 59. Rxh6 Rg1+ 60. Ke2 Rg2+ 61. Kf3 Rb2 62. Rf6 Rb3+ 63. Kf2 Rb2+ 64. Kg1 Rb1+ 65. Be1 Be4 66. Rf7+ Ka6 67. Ra7+ Kb5 68. b7 Kc4 69. Kf2 Rb2+ 70. Kg3 c5 71. a6 Rg2+ 72. Kh3 Rg8 73. Ra8 Rxa8 74. bxa8Q Bxa8 75. h5 Be4 76. a7 Kd3 77. h6 c4 78. h7 Bxh7 79. a8Q 1-0

[Event "IECG C2.1997.0.00067"]
[Site "IECG email"]
[Date "1997.02.27"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Cook, Dave"]
[Result "1-0"]
[ECO "E32"]
[PlyCount "110"]
[EventDate "1997.02.27"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d6 7. Bg5 Nbd7 8. f3 b6 9. e4 e5 10. dxe5 dxe5 11. Nh3 a5 12. Be2 Ba6 13. 0-0 h6 14. Be3 Re8 15. Rfd1 Qe7 16. b4 axb4 17. axb4 c5 18. b5 Bb7 19. Nf2 Red8 20. Nd3 Rxa1 21. Rxa1 Ra8 22. Rxa8+ Bxa8 23. Qa1 Qe8 24. Bf2 Qb8 25. Bg3 Nh5 26. Bxe5 Nxe5 27. Qxe5 Qxe5 28. Nxe5 Nf6 29. Nc6 Nd7 30. Ne7+ Kf8 31. Nd5 Bxd5 32. exd5 Ke7 33. Kf2 f5 34. Ke3 g5 35. g3 Ne5 36. Bd3 h5 37. f4 gxf4+ 38. gxf4 Ng4+ 39. Ke2 Nh6 40. Kf2 Ng4+ 41. Kg3 Kf6 42. Be2 Ne3 43. h3 Ke7 44. Kf2 Nc2 45. Bxh5 Nd4 46. Bd1 Kf6 47. h4 Kg6 48. h5+ Kf6 49. Kg3 Kf7 50. d6 Ne6 51. Bc2 Nd8 52. Bxf5 Nb7 53. Bg6+ Kf6 54. h6 Nd8 55. h7 Kg7 1-0

[Event "IECG C2.1997.0.00067"]
[Site "IECG email"]
[Date "1997.02.27"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Levine, Marc S"]
[Result "1-0"]
[ECO "E94"]
[PlyCount "57"]
[EventDate "1997.02.27"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 0-0 6. Be2 c6 7. 0-0 e5 8. Qc2 exd4 9. Nxd4 c5 10. Nb3 Nc6 11. Bf4 a6 12. Rad1 Ne8 13. Nd5 b5 14. cxb5 axb5 15. Bxb5 Nb4 16. Nxb4 cxb4 17. Nc1 Be6 18. e5 d5 19. Qc5 Rb8 20. Bc6 Nc7 21. Ne2 Na6 22. Qa7 Nc7 23. Nd4 Kh8 24. Rfe1 Na8 25. Rd3 Qb6 26. Qe7 Nc7 27. Bg5 Qa6 28. Rdd1 Na8 29. Bf6 1-0

[Event "IECG C2.1997.0.00067"]
[Site "IECG email"]
[Date "1997.02.27"]
[Round "?"]
[White "Denney, Cyril"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "64"]
[EventDate "1997.02.27"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 Bg4 3. Nf3 Nf6 4. e3 Nbd7 5. c4 e6 6. c5 a5 7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Be7 10. Be2 Qa8 11. Nc3 0-0 12. 0-0 Qa3 13. Qa4 Qxa4 14. Nxa4 Ra8 15. Nc3 Ne4 16. Nxe4 dxe4 17. Nd4 Bxe2 18. Nxe2 Ra2 19. Bc3 b6 20. cxb6 Nxb6 21. Ng3 f5 22. Nh5 g5 23. f3 exf3 24. gxf3 Nd5 25. e4 Nxc3 26. dxc3 Bd6 27. Rf2 Rxf2 28. Kxf2 Bxh2 29. exf5 exf5 30. Nf6+ Kf7 31. Nxh7 Bf4 32. Ke2 g4 0-1

[Event "IECG C2.1997.0.00067"]
[Site "IECG email"]
[Date "1997.02.27"]
[Round "?"]
[White "Dicks, Stephen"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A23"]
[PlyCount "70"]
[EventDate "1997.02.27"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. d3 Nc6 7. Bg5 Be6 8. Bxf6 gxf6 9. Qa4 Rc8 10. Nf3 Qb6 11. Rb1 d4 12. Ne4 Qb4+ 13. Qxb4 Bxb4+ 14. Ned2 Bxa2 15. Rc1 0-0 16. 0-0 Rfd8 17. Nc4 b5 18. Na3 a6 19. Rxc6 Rxc6 20. Nxd4 Rc5 21. Nc6 Bxa3 22. Nxd8 Bxb2 23. Nc6 Ba3 24. Be4 Rc2 25. e3 f5 26. Bf3 e4 27. Nd4 exd3 28. e4 fxe4 29. Bxe4 Rc3 30. Ra1 Bb2 31. Rd1 Rc4 32. Rd2 Rxd4 33. Rxb2 d2 34. Bf3 d1Q+ 35. Bxd1 Rxd1+ 0-1

[Event "IECG CP.1996.P.00001"]
[Site "IECG email"]
[Date "1997.02.05"]
[Round "1"]
[White "De Koning, Leen"]
[Black "Popstein, Sheila"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "77"]
[EventDate "1996.11.10"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. dxc5 Qxc5 7. Be3 Qa5 8. b4 Qc7 9. Na3 a6 10. Be2 Nxb4 11. cxb4 Qc3+ 12. Bd2 Qxa3 13. 0-0 Bd7 14. Ne5 Rd8 15. Nxd7 Rxd7 16. Qc2 e6 17. Rfd1 Bd6 18. Qc8+ Rd8 19. Qxb7 0-0 20. Qxa6 Bxb4 21. Bxb4 Qxb4 22. Rab1 Qf4 23. Rxd8 Rxd8 24. a4 Ng4 25. Bxg4 Qxg4 26. Qd6 Qg5 27. Qc7 h6 28. Rb8 Rxb8 29. Qxb8+ Kh7 30. Qb1+ g6 31. Qe1 Kg8 32. h4 Qxh4 33. a5 Qc4 34. Qf1 Qa4 35. a6 Kf8 36. Qd3 Ke7 37. f4 g5 38. fxg5 hxg5 39. Kf2 1/2-1/2

[Event "IECG CP.1996.P.00001"]
[Site "IECG email"]
[Date "1997.02.05"]
[Round "1"]
[White "De Koning, Leen"]
[Black "Ribeiro, Vitor Manuel"]
[Result "0-1"]
[ECO "B82"]
[PlyCount "76"]
[EventDate "1996.11.10"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f4 b5 8. Qf3 Bb7 9. Bd3 Nbd7 10. g4 b4 11. Nce2 Nc5 12. Ng3 Qc7 13. g5 Nfd7 14. Bd2 Qb6 15. Be3 g6 16. 0-0-0 Bg7 17. Rhg1 0-0 18. Nb3 Qc7 19. Qf2 Rac8 20. Nxc5 dxc5 21. e5 c4 22. Be4 a5 23. Bxb7 Qxb7 24. h4 a4 25. h5 b3 26. axb3 cxb3 27. c3 a3 28. Kb1 axb2 29. hxg6 Ra8 30. gxh7+ Kh8 31. Qxb2 Ra2 32. Bc1 Rfa8 33. c4 Nc5 34. Qd4 Qa7 35. Qd8+ Rxd8 36. Rxd8+ Kxh7 37. g6+ fxg6 38. Rh1+ Bh6 0-1

[Event "IECG CP.1996.P.00001"]
[Site "IECG email"]
[Date "1997.02.05"]
[Round "1"]
[White "Purdy, Warren M"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B93"]
[PlyCount "68"]
[EventDate "1996.11.10"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 b6 9. Bc4 Qc7 10. Qe2 Be7 11. f5 Bb7 12. 0-0 0-0 13. b4 Rac8 14. Nd5 Nxd5 15. Bxd5 Bxd5 16. exd5 Qxc2 17. Qxa6 Nf6 18. Qb5 Qxf5 19. Nd4 Qe4 20. Nc6 Rxc6 21. dxc6 Qd4+ 22. Be3 Qxe3+ 23. Kh1 d5 24. Rac1 Ng4 25. Rc2 Qh6 26. h3 Ne3 27. Rfc1 Nxc2 28. Rxc2 Qe3 29. c7 Qe1+ 30. Kh2 Bh4 31. Qd3 Bf2 32. Rxf2 Qxf2 33. Qc3 Qf4+ 34. Kh1 Rc8 0-1

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "Benbachir, Khalid"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "800"]
[BlackElo "1734"]
[PlyCount "76"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. e3 b5 6. a3 Bf5 7. b3 cxb3 8. Qxb3 Nbd7 9. Ng5 e6 10. e4 Bg6 11. Bd3 Nc5 12. Qc2 Qxd4 13. Be2 Nfxe4 14. Ngxe4 Nxe4 15. Nxe4 Bxe4 16. Bb2 Bxc2 17. Bxd4 a6 18. Bf3 0-0-0 19. Bb2 c5 20. 0-0 Rg8 21. Rfe1 c4 22. Rec1 Bd3 23. a4 b4 24. Rxc4+ Bxc4 25. Rc1 Bd6 26. Rxc4+ Kd7 27. Bb7 a5 28. Ba6 Ke7 29. g3 Bb8 30. Bb7 Rd2 31. Bd4 b3 32. Bc5+ Bd6 33. Bxd6+ Rxd6 34. Rc1 Rb8 35. Be4 f5 36. Bb1 Rb4 37. Re1 Kf6 38. Kg2 Rxa4 0-1

[Event "The Climb email"]
[Site "ICCF email"]
[Date "1997.??.??"]
[Round "?"]
[White "Corson, Bernd"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "60"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. f4 d5 2. e3 Nf6 3. Nf3 Bf5 4. b3 e6 5. Bb2 Nbd7 6. Be2 h6 7. 0-0 Bc5 8. Ne5 0-0 9. g4 Bh7 10. c4 Nxe5 11. fxe5 Ne4 12. d4 Bb4 13. a3 Be7 14. Bd3 Bg5 15. Qe1 h5 16. Bxe4 Bxe4 17. h3 Bd3 18. Rf3 Bh4 19. Qc3 hxg4 20. hxg4 Be2 21. Rf4 Bg3 22. Qd2 Bxf4 23. Qxe2 Bh6 24. Bc1 c5 25. Nc3 dxc4 26. Qxc4 Qh4 27. Qe2 Qg3+ 28. Qg2 Bxe3+ 29. Kf1 Qf4+ 30. Ke1 Bxc1 0-1

[Event "IECC 1997 Team Champ email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Camper, Donald Lynn"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "100"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. Nc3 Nf5 9. Na4 Bb4+ 10. Kf1 Qd8 11. a3 Be7 12. b4 0-0 13. b5 Na5 14. Nb2 Bd7 15. Bd2 Rc8 16. Qa4 Nc4 17. Nxc4 dxc4 18. Bxc4 a6 19. Rb1 axb5 20. Bxb5 Ra8 21. Qc4 Rxa3 22. Bxd7 Qxd7 23. Qb5 Qxb5+ 24. Rxb5 Rb8 25. g4 Rxf3 26. gxf5 Rxf5 27. Kg2 f6 28. Rf1 b6 29. Be3 Kf7 30. Ra1 Rb7 31. Ra8 fxe5 32. dxe5 Bg5 33. Rxb6 Rxb6 34. Bxb6 Bf4 35. Ra7+ Kg6 36. Bd4 Bxe5 37. Bxe5 Rxe5 38. h4 Kf6 39. f4 Rb5 40. Kf3 h5 41. Ra3 Rb4 42. Ra5 Rb3+ 43. Kg2 Rb4 44. Kf3 Rb3+ 45. Kg2 g6 46. Re5 Rd3 47. Rc5 Rd5 48. Rc3 Rd2+ 49. Kg3 Rd1 50. Re3 Rg1+ 1/2-1/2

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Kyllo, Richard"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1734"]
[BlackElo "1142"]
[PlyCount "61"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. e3 Bg4 4. Nbd2 Nbd7 5. h3 Bxf3 6. Nxf3 e6 7. Bd3 Be7 8. c4 c6 9. 0-0 0-0 10. Bd2 dxc4 11. Bxc4 Nb6 12. Bd3 Nbd5 13. a3 Nb6 14. e4 e5 15. Qc2 Ne8 16. dxe5 Nc7 17. Be3 Ne6 18. Rfd1 Qc7 19. b4 Rfd8 20. Rdc1 Qd7 21. Be2 h6 22. h4 Rac8 23. Rd1 Qc7 24. Rxd8+ Rxd8 25. Rc1 Rc8 26. Qb3 Re8 27. a4 Nd7 28. Qb2 c5 29. Bc4 Bd8 30. bxc5 Ndxc5 31. Bxe6 1-0

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Lynch, John Jr"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "1734"]
[BlackElo "1846"]
[PlyCount "41"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Bg5 c5 5. d5 h6 6. Bxf6 Qxf6 7. Nc3 Qd8 8. g3 d6 9. dxe6 Bxe6 10. Bg2 Nd7 11. Nd2 Qb6 12. Nd5 Bxd5 13. Bxd5 Qxb2 14. Rb1 Qxa2 15. Rxb7 Rd8 16. Bc6 Be7 17. 0-0 f5 18. e4 fxe4 19. Qh5+ Kf8 20. Rxd7 Qa5 21. Bd5 1-0

[Event "IECC KO email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Neumann, Ulrich"]
[Result "1/2-1/2"]
[ECO "C17"]
[PlyCount "64"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. a3 cxd4 7. axb4 dxc3 8. Bxc3 Qb6 9. b5 Nd7 10. Nf3 Qc7 11. Be2 Ng6 12. 0-0 b6 13. Qd4 0-0 14. Bb4 Nc5 15. Bd3 Ne7 16. Ra3 Nxd3 17. Qxd3 Rd8 18. Bd6 Qb7 19. Nd4 Ng6 20. Rfa1 Bd7 21. Qg3 Rdc8 22. h4 Rc4 23. c3 h6 24. h5 Nf8 25. Qd3 Nh7 26. b3 Rcc8 27. f4 f6 28. R3a2 Rd8 29. Qg3 Rdc8 30. Kh1 Kh8 31. Qd3 fxe5 32. Bxe5 Rf8 1/2-1/2

[Event "IECC email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Schmidt, David"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "49"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 g6 3. Nf3 Bg7 4. d4 c6 5. 0-0 d5 6. Bf4 Nbd7 7. Nbd2 e6 8. c4 b5 9. cxd5 cxd5 10. Rc1 Nh5 11. Bc7 Qe7 12. e4 Bb7 13. e5 0-0 14. Bd6 Qe8 15. Rc7 Ba6 16. Qc2 Rc8 17. Bxf8 Rxc7 18. Qxc7 Bxf8 19. Rc1 f6 20. Qc6 Bh6 21. Qxa6 Nb6 22. Rc7 Bf8 23. Rxa7 Nc4 24. Qb7 b4 25. Qxh7# 1-0

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Tanti, Joseph G"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1734"]
[BlackElo "2071"]
[PlyCount "150"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. Qb3 Nc6 4. Nf3 d6 5. e3 Nf6 6. d3 0-0 7. Be2 e4 8. Nd4 Nxd4 9. exd4 exd3 10. Bxd3 Re8+ 11. Be3 Bxc3+ 12. Qxc3 d5 13. 0-0 dxc4 14. Qxc4 Be6 15. Qc2 Qd6 16. Bg5 Ng4 17. g3 h6 18. Bf4 Qxd4 19. Rfd1 Qf6 20. Bh7+ Kh8 21. Be4 c6 22. f3 Ne5 23. Qc3 Nd7 24. Qb4 Nb6 25. b3 Bd5 26. a4 c5 27. Qb5 Bxe4 28. fxe4 Rxe4 29. a5 Nd5 30. Qxb7 Rd8 31. Ra2 Rd4 32. Rxd4 Qxd4+ 33. Rf2 Nxf4 34. gxf4 Qd1+ 35. Rf1 Qg4+ 36. Qg2 Qxg2+ 37. Kxg2 Rd2+ 38. Kg1 Ra2 39. Rc1 Rxa5 40. Rc3 g6 41. h4 Kg7 42. Kf2 Kf6 43. Ke3 Kf5 44. Kf3 f6 45. Rd3 Rb5 46. Rc3 a5 47. Rd3 Rb4 48. Rd5+ Ke6 49. Rd3 Rd4 50. Rc3 Kd5 51. Ke3 Re4+ 52. Kf3 c4 53. bxc4+ Rxc4 54. Rd3+ Rd4 55. Rb3 Rb4 56. Rd3+ Ke6 57. Rc3 a4 58. Rc6+ Ke7 59. Rc7+ Kd6 60. Rg7 a3 61. Ra7 Rb3+ 62. Ke4 f5+ 63. Kd4 Rf3 64. Ra6+ Kc7 65. Ke5 Kb7 66. Rxg6 a2 67. Rg1 Ra3 68. Ra1 Ra5+ 69. Kf6 Kc7 70. Kg6 Ra6+ 71. Kxf5 Kd7 72. Ke5 Ke7 73. h5 Ra5+ 74. Kd4 Kf6 75. Kc3 Kf5 0-1

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "Long, Jeffrey"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2250"]
[BlackElo "1734"]
[PlyCount "73"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bc5 5. Nxe5 Nxe5 6. d4 Bb4 7. dxe5 Nxe4 8. Qd4 Nxc3 9. bxc3 Be7 10. Bd3 c5 11. Qe4 d6 12. exd6 Qxd6 13. Bf4 f5 14. Bxd6 fxe4 15. Bxe7 exd3 16. Bxc5 Kf7 17. Kd2 Be6 18. Kxd3 Rhc8 19. Bd4 Bxc4+ 20. Kc2 Re8 21. Rhd1 Re2+ 22. Rd2 Rxd2+ 23. Kxd2 a6 24. a3 Re8 25. Re1 Rxe1 26. Kxe1 b5 27. Kd2 g6 28. Ke3 Ke6 29. g4 g5 30. Kf3 Kf7 31. Kg3 h6 32. Bb6 Bd5 33. h4 Bc4 34. Bd8 Kg6 35. f4 gxf4+ 36. Kxf4 Be2 37. g5 1/2-1/2

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "Nava Baro, Enrique"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2032"]
[BlackElo "1734"]
[PlyCount "65"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. 0-0 a6 7. a4 Nc6 8. Qe2 Qc7 9. Nc3 Bd6 10. h3 0-0 11. Rd1 Re8 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Nb4 15. Bc4 Bf5 16. Bd2 Nc6 17. Bc3 Rad8 18. Rd2 Be4 19. Rad1 h6 20. Kf1 Re7 21. Bd5 Bxd5 22. Rxd5 Re6 23. Nh4 g6 24. Qc4 Ne7 25. R5d2 Re8 26. Nf3 Nf5 27. g4 Ne7 28. Kg2 Qc6 29. a5 g5 30. b3 Ng6 31. Qd5 Qb5 32. Qc4 Qc6 33. Qd5 1/2-1/2

[Event "IECC KO email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "Neumann, Ulrich"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "66"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Nbd7 8. Nc3 Qxe2+ 9. Bxe2 Be7 10. 0-0-0 h6 11. Nb5 Bd8 12. Be3 a6 13. Na7 0-0 14. Nxc8 Rxc8 15. Nd4 Re8 16. Bf3 d5 17. Bf4 g5 18. Be3 g4 19. Be2 c5 20. Nf5 d4 21. Nxh6+ Kh7 22. Nxg4 dxe3 23. Nxe3 b5 24. h4 Bc7 25. Kd2 Rcd8 26. g3 Ne5 27. c3 Nc4+ 28. Nxc4 bxc4 29. Rh2 Ne4+ 30. Kc1 Nxc3 31. bxc3 Rxe2 32. dxc4 Rxd1+ 33. Kxd1 Rxa2 0-1

[Event "IECG CP.1997.P.00012"]
[Site "IECG email"]
[Date "1997.??.??"]
[Round "?"]
[White "Plinke, Robert Wayne"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "1645"]
[BlackElo "1734"]
[PlyCount "67"]
[EventDate "1997.10.27"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. f4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Nd7 7. Nf3 Nb6 8. Bb3 Bg4 9. 0-0 Bc5+ 10. d4 Bxf3 11. Qe1+ Be7 12. Rxf3 0-0 13. Be3 Re8 14. Qh4 Qd7 15. Rh3 h6 16. Rg3 Bf8 17. Re1 Nd5 18. Bf2 Rxe1+ 19. Bxe1 Re8 20. Bd2 Re2 21. Rd3 Bb4 22. c3 Bd6 23. Qh5 Qe6 24. Kf1 Re4 25. g3 f5 26. c4 Nf6 27. d5 cxd5 28. cxd5 Qd7 29. Qf3 Ng4 30. Kg2 Qe7 31. Bd1 Bc5 32. Rc3 Nf6 33. Rd3 Qd6 34. Bb3 1/2-1/2

[Event "IECC email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "Schmidt, David"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "50"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bd7 5. Bd2 Qb6 6. Bc3 e6 7. Nf3 c5 8. b3 Nc6 9. Qd2 cxd4 10. Bxd4 Nxd4 11. Nxd4 f6 12. f4 fxe5 13. fxe5 Bc5 14. c3 Ne7 15. h3 0-0 16. Be2 Nc6 17. b4 Bxd4 18. cxd4 Nxd4 19. a3 Nb3 20. Qc3 Qf2+ 21. Kd1 Ba4 22. Nd2 Nd4+ 23. Nb3 Qxe2+ 24. Kc1 Rf3 25. Qxd4 Rc8+ 0-1

[Event "IECC CL5-1996.14 email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Brauchart, Elmar"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "84"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[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 Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 0-0 12. d6 cxd6 13. Bg5 d5 14. Bxd5 Nxd5 15. Qxd5 d6 16. Bxf6 Qxf6 17. Rd4 Rd8 18. Rad1 h6 19. Qe4 Rb8 20. Qe3 Be6 21. Qa3 a6 22. Qb4 b6 23. Rf4 Qg6 24. Qa4 Ra8 25. Rfd4 d5 26. Qc6 b5 27. R4d2 Rdc8 28. Qb7 Rcb8 29. Qc7 Bh3 30. Nh4 Qg5 31. Rxd5 Qxh4 32. gxh3 Qxh3 33. Qg3 Qxg3+ 34. hxg3 Rc8 35. Kf1 Rc2 36. R1d2 Rac8 37. Rd6 Kh7 38. Ke2 Rxd2+ 39. Kxd2 a5 40. Rd5 Rb8 41. b3 a4 42. Kc3 axb3 1/2-1/2

[Event "IECC M email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Galateo, Massimo"]
[Result "1/2-1/2"]
[ECO "B62"]
[PlyCount "77"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 e6 4. Bc4 Nc6 5. d4 cxd4 6. Nxd4 Nf6 7. Bg5 Be7 8. Ndb5 a6 9. Bxf6 gxf6 10. Nd4 Rg8 11. 0-0 Qb6 12. Nb3 Ne5 13. Be2 Ng6 14. Qd2 f5 15. exf5 Nh4 16. fxe6 Rxg2+ 17. Kh1 Bxe6 18. Nd5 Qc6 19. c4 Rg5 20. Rfd1 Bxd5+ 21. cxd5 Qa4 22. Qc2 Bf6 23. Rg1 Rxg1+ 24. Rxg1 Ng6 25. a3 Be5 26. Rg4 Qd7 27. Nd4 Rc8 28. Qe4 Rc1+ 29. Kg2 Re1 30. h3 Kf8 31. Rxg6 hxg6 32. Nf3 Ra1 33. Nxe5 Qe7 34. Nxg6+ fxg6 35. Qg4 Kg7 36. h4 Kh6 37. Bd3 Qf6 38. Qe4 a5 39. a4 1/2-1/2

[Event "IECC M email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Gosme, Emile"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "129"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3 Bb4 6. Qd3 Nf6 7. Ndb5 Ba5 8. Qe2 0-0 9. Bd2 a6 10. g3 Qg4 11. Qxg4 Nxg4 12. Na3 b5 13. Be2 d6 14. h3 Nf6 15. Nd5 Bxd2+ 16. Kxd2 Nxe4+ 17. Ke3 Nc5 18. Bf3 Bb7 19. Kd2 Ne5 20. Ne7+ Kh8 21. Bxb7 Nxb7 22. Nd5 c6 23. Nc7 Ra7 24. f4 Ng6 25. Rhe1 Nc5 26. Ne8 f5 27. Rad1 Ne4+ 28. Rxe4 fxe4 29. Nxd6 Rd7 30. Ke2 Kg8 31. Rd2 Ne7 32. Nxe4 Rxd2+ 33. Kxd2 Rd8+ 34. Ke2 Nf5 35. c3 h6 36. g4 Nd6 37. Nd2 Re8+ 38. Kd3 c5 39. c4 b4 40. Nc2 Kf7 41. Nb3 Nb7 42. Nd2 g5 43. f5 h5 44. Ne4 hxg4 45. hxg4 Rh8 46. Nxg5+ Kf6 47. Nf3 Nd6 48. Ne3 Nf7 49. Nd5+ Kg7 50. Nf4 Rh1 51. Ne6+ Kf6 52. Nxc5 a5 53. Kd2 Rf1 54. Ne4+ Kg7 55. Ke3 Ra1 56. b3 Rxa2 57. Nc5 Rg2 58. Kf4 Nd6 59. Ne6+ Kg8 60. c5 Nc8 61. Nfd4 a4 62. bxa4 Ra2 63. f6 Rxa4 64. g5 b3 65. g6 1-0

[Event "IECC CL5-1996.14 email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "De Koning, Leen"]
[Black "Shilo, Amit"]
[Result "1-0"]
[ECO "B97"]
[PlyCount "43"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Be7 9. Qf3 Nbd7 10. 0-0-0 Qc7 11. Kb1 b5 12. Bd3 Bb7 13. Rhe1 Nc5 14. Bxf6 Bxf6 15. Bxb5+ axb5 16. Nxb5 Qc6 17. Nxd6+ Kf8 18. Qh5 g6 19. Qxc5 Qa4 20. Nxb7+ Be7 21. Qc3 Rg8 22. a3 1-0

[Event "IECC CL5-1996.14 email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "Dunn, Paul Michael"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "84"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Bd3 Ne7 6. Nf3 Bxd3 7. Qxd3 Nd7 8. 0-0 Ng6 9. b3 Be7 10. Na3 0-0 11. Re1 c5 12. Bb2 Qa5 13. Qb5 Qc7 14. Qe2 Rfc8 15. Rad1 a6 16. Nc2 b5 17. a3 c4 18. bxc4 bxc4 19. Rb1 Rab8 20. Qe3 a5 21. Nd2 Qc6 22. Qg3 Qa4 23. Rec1 Rc7 24. Ne3 Rcb7 25. Nd1 Rb6 26. Qe3 Nh4 27. Qe2 Nf5 28. Qg4 Nf8 29. Qf3 Ng6 30. Qg4 h5 31. Qxh5 Nf4 32. Qg4 Nd3 33. Ra1 Nxb2 34. Ra2 Nxd1 35. Qxd1 Qxd1+ 36. Rxd1 Rb2 37. Rda1 Rxa2 38. Rxa2 Bg5 39. Kf1 Nxd4 40. cxd4 c3 41. Ke2 Bxd2 42. Kd3 Rb2 0-1

[Event "IECC CL5-1996.14 email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "Enslin, Alfred"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "A11"]
[PlyCount "44"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. e3 e5 5. d3 Nc6 6. Be2 Nf6 7. Nf3 Bd6 8. Qc2 0-0 9. 0-0 Be6 10. Bd2 Rc8 11. Rac1 Qb6 12. Na4 Qa6 13. Bc3 d4 14. exd4 Nxd4 15. Qd1 Nxe2+ 16. Qxe2 Qxa4 17. Nxe5 Bxa2 18. f4 Nd5 19. Nxf7 Rxf7 20. Bxg7 Rxc1 21. Rxc1 Qxf4 22. Bh6 Qxh2# 0-1

[Event "IECC M email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "Galateo, Massimo"]
[Black "De Koning, Leen"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "82"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe6+ 4. Be2 Qg6 5. Bf3 Nc6 6. Nb5 Qe6+ 7. Ne2 Qd7 8. d4 a6 9. Nbc3 e5 10. 0-0 Nxd4 11. Nxd4 Qxd4 12. Qxd4 exd4 13. Re1+ Kd8 14. Ne4 h6 15. Rd1 c5 16. c3 f5 17. Ng3 Be7 18. cxd4 cxd4 19. Rxd4+ Ke8 20. Bh5+ Kf8 21. Bg6 Be6 22. Bf4 Nf6 23. Nxf5 Bc5 24. Bd6+ Bxd6 25. Rxd6 Bf7 26. Bxf7 Kxf7 27. Rb6 Kg6 28. Nh4+ Kh5 29. Nf3 Rab8 30. Re1 Rhe8 31. Ne5 Nd7 32. g4+ Kh4 33. Ng6+ Kxg4 34. Rxe8 Rxe8 35. Rxb7 Re6 36. h3+ Kf5 37. Nh4+ Kg5 38. Nf3+ Kf4 39. Rxd7 Rg6+ 40. Kf1 Kxf3 41. b4 Kf4 1/2-1/2

[Event "IECC M email"]
[Site "IECC email"]
[Date "1996.??.??"]
[Round "?"]
[White "Gosme, Emile"]
[Black "De Koning, Leen"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "52"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 e6 2. e4 e5 3. Be3 exd4 4. Nd2 dxe3 5. fxe3 Nc6 6. Ngf3 Qf6 7. Bc4 Bc5 8. Qe2 Qxb2 9. 0-0 Qc3 10. Bxf7+ Kxf7 11. Ne5+ Ke8 12. Nec4 Nf6 13. Rae1 b5 14. e5 Nxe5 15. Nxe5 Qxe5 16. Qd3 a6 17. Kh1 d6 18. e4 Kd8 19. Nf3 Qh5 20. g3 Bh3 21. Nh4 Bxf1 22. Rxf1 Qe5 23. Re1 Ng4 24. Kg2 Rf8 25. Nf3 Qh5 26. h4 Kd7 0-1

