[Event "Leiden op-A 10th"]
[Site "Leiden"]
[Date "2016.07.22"]
[Round "7"]
[White "Both, Gert"]
[Black "Van Lankveld, Koen"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1924"]
[PlyCount "113"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. 0-0 g6 5. c4 Bg7 6. Nc3 Nf6 7. d3 0-0 8. Bf4 d6 9. Qd2 Re8 10. h3 Na6 11. a3 e6 12. Bh6 Bh8 13. Bg5 Qb8 14. Rab1 Nd7 15. b4 d5 16. cxd5 exd5 17. Bf4 Bxc3 18. Qxc3 d4 19. Qc4 Qc8 20. Ng5 Re7 21. Bxb7 Qxb7 22. b5 Nab8 23. Ne4 Ne5 24. Nf6+ Kg7 25. Qd5 Kxf6 26. Bxe5+ Kf5 27. e4+ Kg5 28. Qxb7 Rxb7 29. Bg7 Nd7 30. f4+ Kh5 31. g4+ Kh4 32. Kg2 h5 33. Kf3 f6 34. Bh6 Rh8 35. g5 Ne5+ 36. Ke2 Rxh6 37. gxh6 Nf7 38. Rg1 g5 39. Rbf1 Nxh6 40. fxg5 fxg5 41. Rf6 Rh7 42. e5 g4 43. hxg4 Nxg4 44. Rf5 Nh2 45. Rf2 Ng4 46. Rf5 Nh2 47. Kf2 Ng4+ 48. Kf3 Nh2+ 49. Kf4 Kh3 50. e6 h4 51. Rf7 Rh6 52. Re1 Nf1 53. e7 Ne3 54. Kf3 Ng4 55. Rh1+ Nh2+ 56. Rxh2+ Kxh2 57. e8Q 1-0

[Event "Leiden op-A 10th"]
[Site "Leiden"]
[Date "2016.07.22"]
[Round "6"]
[White "Van Lankveld, Koen"]
[Black "De Heer, Henk JJ"]
[Result "1/2-1/2"]
[ECO "B38"]
[BlackElo "1865"]
[PlyCount "54"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 d6 8. Be2 0-0 9. 0-0 Ng4 10. Bxg4 Bxg4 11. Qxg4 Nxd4 12. Rad1 Nc2 13. Bd2 Nd4 14. b3 Rc8 15. h4 b5 16. Nxb5 h5 17. Qh3 Nxb5 18. cxb5 Rc2 19. a4 Qb6 20. Qd3 Rfc8 21. Rc1 Qc7 22. Ba5 Qc5 23. Rxc2 Qxc2 24. Rd1 Qb2 25. Qb1 Qe2 26. Qd3 Qb2 27. Qb1 Qe2 1/2-1/2

[Event "Leiden op-A 10th"]
[Site "Leiden"]
[Date "2016.07.19"]
[Round "5"]
[White "Braggaar, Pim"]
[Black "Van Lankveld, Koen"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1919"]
[PlyCount "68"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Nc3 d6 7. h3 Na5 8. Bb3 Nxb3 9. axb3 Nd7 10. d4 f5 11. dxe5 Nxe5 12. Qd5+ Nf7 13. exf5 c6 14. Qd3 d5 15. Nd4 Qd6 16. g4 h5 17. Nde2 Ne5 18. Qg3 Bh4 19. Qg2 hxg4 20. hxg4 g5 21. Be3 b6 22. f3 Bb7 23. Rad1 Ba6 24. Bf2 Bxe2 25. Nxe2 Rae8 26. Bxh4 gxh4 27. Nd4 Rf7 28. Rde1 h3 29. Qh2 Qc5 30. Qf2 Ree7 31. Ne6 Nxf3+ 32. Kh1 Qxf2 33. Rxf2 Nxe1 34. Kg1 h2+ 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.06.25"]
[Round "6"]
[White "Van Lankveld, Koen"]
[Black "Serdijn Koster, Adinda"]
[Result "0-1"]
[ECO "A26"]
[BlackElo "2048"]
[PlyCount "123"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. e4 d6 6. Nge2 f5 7. d3 Nf6 8. 0-0 0-0 9. exf5 Bxf5 10. Bg5 Qd7 11. Qd2 Rab8 12. a3 a6 13. b4 b5 14. Bxf6 Bxf6 15. Nd5 Bg7 16. Rae1 Nd8 17. Nec3 c6 18. Ne3 Be6 19. Ne2 Bh6 20. Qc2 d5 21. c5 Bh3 22. Bxh3 Qxh3 23. f4 Ne6 24. Ng2 exf4 25. Ngxf4 Nxf4 26. Nxf4 Bxf4 27. gxf4 Qg4+ 28. Qg2 Rxf4 29. Qxg4 Rxg4+ 30. Kh1 Rd4 31. Re7 Rf8 32. Rxf8+ Kxf8 33. Ra7 Rxd3 34. Rxa6 d4 35. Rxc6 Rxa3 36. Rd6 d3 37. c6 Rc3 38. c7 Rxc7 39. Rxd3 Rc4 40. Rb3 Ke7 41. Kg2 Rf4 42. Kg3 g5 43. Kg2 Ke6 44. Rh3 Rxb4 45. Rxh7 Rf4 46. Rg7 Rf5 47. Kg3 b4 48. Kg4 Rb5 49. Rg6+ Kf7 50. Rd6 b3 51. Rd1 b2 52. Rb1 Kg6 53. Kg3 Kh5 54. Kh3 Rb3+ 55. Kg2 Kg4 56. Kf2 Kh3 57. Ke2 Kxh2 58. Kd2 g4 59. Kc2 Rb8 60. Kc3 g3 61. Rxb2+ Rxb2 62. Kxb2 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.06.18"]
[Round "5"]
[White "Weiland, Harro"]
[Black "Van Lankveld, Koen"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "1935"]
[PlyCount "75"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. dxc5 0-0 7. a3 Bxc5 8. b4 Be7 9. cxd5 Nxd5 10. Nxd5 exd5 11. Bb2 Bf6 12. Bxf6 Qxf6 13. Qd4 Qg5 14. Rd1 Be6 15. Qf4 Qe7 16. Nd4 a5 17. Be2 axb4 18. Nxe6 fxe6 19. Qxb4 Qf7 20. 0-0 Nc6 21. Qb2 Ra7 22. Rb1 Rfa8 23. a4 Rxa4 24. Qxb7 Nd8 25. Qxf7+ Kxf7 26. Rfc1 R4a7 27. g3 Re7 28. Rc5 Nb7 29. Rcb5 Nd6 30. Rb6 Ne8 31. Ra6 Rxa6 32. Bxa6 g6 33. Rb7 Rxb7 34. Bxb7 h5 35. h4 Nd6 36. Ba6 Ne4 37. Kg2 Nf6 38. f4 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.06.11"]
[Round "4"]
[White "Van Lankveld, Koen"]
[Black "Van der Knaap, Jan"]
[Result "1/2-1/2"]
[ECO "A21"]
[PlyCount "54"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. d3 Be7 6. e4 Nc6 7. Nge2 0-0 8. 0-0 Kh8 9. h3 Qe8 10. exf5 Bxf5 11. d4 a6 12. Be3 Qd7 13. g4 Bg6 14. dxe5 Nxe5 15. Nf4 c6 16. b3 Bf7 17. Na4 Bd8 18. Nb6 Bxb6 19. Bxb6 h6 20. Re1 Ng6 21. Nxg6+ Bxg6 22. Qd4 Rae8 23. f4 Rxe1+ 24. Rxe1 Re8 25. Rxe8+ Nxe8 26. f5 Bf7 27. Kf1 Qe7 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.05.28"]
[Round "2"]
[White "Koes, Richard"]
[Black "Van Lankveld, Koen"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1919"]
[PlyCount "75"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nc3 c6 2. e4 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. exd5 cxd5 7. d4 Nc6 8. Bb5 Nf6 9. Be3 Bd6 10. 0-0 0-0 11. a3 a6 12. Bxc6 bxc6 13. Bg5 Be7 14. Qd3 Nd7 15. Bxe7 Qxe7 16. f4 g6 17. Qg3 Kh8 18. Rae1 Rg8 19. b4 Qf6 20. Qd3 Qf5 21. Qd2 Nb6 22. g4 Qf6 23. Qf2 Nc4 24. Nb1 a5 25. c3 axb4 26. axb4 Ra7 27. Nd2 Ra2 28. Re2 Nxd2 29. Rxd2 Rxd2 30. Qxd2 Ra8 31. Rb1 h5 32. Rf1 hxg4 33. hxg4 Qh4 34. Qh2 Qxh2+ 35. Kxh2 Ra2+ 36. Kg3 Rc2 37. Rf3 Kg7 38. Re3 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2013.05.21"]
[Round "1"]
[White "Van Lankveld, Koen"]
[Black "Thissen, Thomas"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "44"]
[EventDate "2013.05.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 c6 4. dxc6 Nxc6 5. Bb5 e5 6. Qe2 Bd6 7. Bxc6+ bxc6 8. d4 0-0 9. dxe5 Bxe5 10. Qxe5 Re8 11. Qxe8+ Qxe8+ 12. Nge2 Ba6 13. h3 Nd5 14. Be3 Nxe3 15. fxe3 Qxe3 16. Rf1 Bxe2 17. Nxe2 Qe4 18. Rd1 Re8 19. Rf2 Qxc2 20. Rc1 Rxe2+ 21. Rxe2 Qxc1+ 22. Kf2 g5 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.26"]
[Round "7"]
[White "Van Lankveld, Koen"]
[Black "Zuijdendorp, Milko"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1400"]
[PlyCount "47"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 d6 5. Nf3 Be6 6. d3 Be7 7. Ng5 Qd7 8. Nxe6 fxe6 9. Ne4 Nxe4 10. dxe4 0-0-0 11. 0-0 g5 12. h3 h5 13. e3 Rdg8 14. a3 g4 15. h4 Qd8 16. b4 Bxh4 17. gxh4 Qxh4 18. Ra2 g3 19. fxg3 Rxg3 20. Rf3 Qg4 21. Raf2 Nd8 22. Qe2 h4 23. Rxg3 hxg3 24. Qxg4 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.06.19"]
[Round "6"]
[White "Van Lankveld, Koen"]
[Black "Brunner, Otto"]
[Result "1/2-1/2"]
[ECO "D33"]
[WhiteElo "1400"]
[PlyCount "56"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 h6 4. g3 c5 5. cxd5 exd5 6. Bg2 Nf6 7. 0-0 Nc6 8. Nc3 Be6 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 b6 12. Nd4 Nxd4 13. Bxd4 0-0 14. Qd3 Rc8 15. Rfd1 Qd7 16. Nc3 Bf5 17. e4 dxe4 18. Nxe4 Bxe4 19. Bxe4 Nxe4 20. Qxe4 Qe6 21. Qxe6 fxe6 22. Rac1 Rxc1 23. Rxc1 Rd8 24. Be3 Rd7 25. Kg2 Rb7 26. Rc2 e5 27. h4 e4 28. Rc4 Bf6 1/2-1/2

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.30"]
[Round "3"]
[White "Bakker, Joop"]
[Black "Van Lankveld, Koen"]
[Result "1-0"]
[ECO "C20"]
[WhiteElo "1911"]
[BlackElo "1400"]
[PlyCount "85"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Ne2 Bc5 3. c3 d5 4. d4 exd4 5. cxd4 Bb4+ 6. Bd2 Bxd2+ 7. Nxd2 dxe4 8. Nxe4 Nf6 9. N2c3 Nxe4 10. Nxe4 Qe7 11. Qe2 0-0 12. Nc3 Qb4 13. 0-0-0 Rd8 14. Qc4 Qa5 15. Bd3 c6 16. Bc2 Qg5+ 17. Kb1 Bf5 18. Ne4 Qh4 19. g3 Qh6 20. d5 cxd5 21. Rxd5 Rxd5 22. Qxd5 Bd7 23. Qxb7 Qc6 24. Qxc6 Bxc6 25. Rd1 Nd7 26. Nd6 Nc5 27. Kc1 g6 28. b4 Ne6 29. b5 Be8 30. Be4 Rb8 31. Nxe8 Rxe8 32. Bc6 Rb8 33. Rd7 Nd8 34. Rxa7 Nxc6 35. bxc6 Rc8 36. c7 f5 37. Kb2 Kf8 38. Kb3 Ke7 39. Kb4 Kd7 40. Kb5 Rxc7 41. Rxc7+ Kxc7 42. a4 Kc8 43. Kc6 1-0

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.22"]
[Round "2"]
[White "Van Lankveld, Koen"]
[Black "Polak, Alexander"]
[Result "0-1"]
[ECO "E07"]
[WhiteElo "1400"]
[BlackElo "1852"]
[PlyCount "68"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 Nbd7 6. 0-0 Be7 7. b3 0-0 8. Nc3 a5 9. a3 Re8 10. Qc2 Nb6 11. Na2 a4 12. c5 axb3 13. Qxb3 Nc4 14. Nb4 Ne4 15. Rd1 Qa5 16. Nd2 Nexd2 17. Bxd2 Qa4 18. Qxa4 Rxa4 19. Nc2 e5 20. Bb4 Bf6 21. e3 Bf5 22. Ne1 exd4 23. exd4 Rea8 24. Bc3 Rxa3 25. Rac1 Rb3 26. Ba1 Na3 27. Nf3 Bg4 28. Rc3 Rxc3 29. Bxc3 Nb5 30. Bb2 Ra2 31. Re1 Kf8 32. Ba1 Bxf3 33. Bh3 Rd2 34. Bd7 Rd1 0-1

[Event "Leiden SB-ch"]
[Site "Leiden"]
[Date "2012.05.15"]
[Round "1"]
[White "Van Drunick, Jan Willem"]
[Black "Van Lankveld, Koen"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "1941"]
[BlackElo "1400"]
[PlyCount "59"]
[EventDate "2012.05.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Bg4 3. c4 c6 4. Qb3 Qc7 5. Bf4 Nd7 6. Nbd2 Ngf6 7. h3 Bh5 8. e3 h6 9. Be2 g5 10. Bh2 Bg6 11. Rc1 b6 12. c5 bxc5 13. dxc5 Bg7 14. Qa3 Ne5 15. 0-0 Nfd7 16. cxd6 exd6 17. Rfd1 0-0 18. Nb3 Nxf3+ 19. Bxf3 Ne5 20. Bxe5 dxe5 21. Rxc6 Qb8 22. Rc4 e4 23. Bxe4 Rd8 24. Rxd8+ Qxd8 25. Bxa8 Qd1+ 26. Kh2 Be5+ 27. f4 gxf4 28. exf4 Bd6 29. Rd4 Qf1 30. Qxd6 1-0

