[Event "PK LSB groep A"]
[Country "Nederland"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Pijpers, Arthur"]
[Black "Van Briemen, Willem"]
[Result "1-0"]
[WhiteElo "2483"]
[BlackElo "1973"]
[PlyCount "49"]
[EventDate "2026.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. d4
Bb6 9. Re1 h6 10. Nbd2 O-O 11. Nf1 Bg4 12. Ne3 Bxf3 13. Qxf3 exd4 14. Nf5 Ne5
15. Qg3 Nh5 16. Qh3 g6 17. cxd4 Nc4 18. Nxh6+ Kg7 19. g4 Nf6 20. Nf5+ gxf5 21.
Bh6+ Kg8 22. gxf5 Ne8 23. Kh1 f6 24. Rg1+ Kf7 25. Bxf8 1-0

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van der Bent, Gideon"]
[Black "Timmermans, Raymond"]
[Result "0-1"]
[WhiteElo "1988"]
[BlackElo "2031"]
[PlyCount "22"]
[EventDate "2026.??.??"]

1. d4 e6 2. Nf3 c5 3. Bf4 cxd4 4. Nxd4 e5 5. Bxe5 Qa5+ 6. Nc3 Qxe5 7. Qd2 Bb4
8. f4 Qa5 9. e4 Nf6 10. Qe3 O-O 11. Nb3 Qb6 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van der Marel, Lambertus"]
[Black "Schenkelaars, Robin"]
[Result "1/2-1/2"]
[WhiteElo "2030"]
[BlackElo "1961"]
[PlyCount "60"]
[EventDate "2026.??.??"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. exf6 Bb7 12. g3 c5 13. d5 Qb6 14. Bg2 O-O-O 15. O-O b4 16. Rb1 Qa6 17. dxe6 Bxg2 18. e7 Bxf1 19. Kxf1 Bxe7 20. fxe7 Rdg8 21. Ne4 Rg6 22. Qd5 Qc6 23. Rd1 Qxd5 24. Rxd5 Kc7 25. Bf4+ Kc6 26. Rd6+ Rxd6 27. Nxd6 Nf6 28. Nxf7 Re8 29. Nd6 Rxe7 30. Nxc4 Kb5 1/2-1/2

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "De Weerd, Just"]
[Black "Passenier, Peter"]
[Result "1/2-1/2"]
[WhiteElo "1975"]
[BlackElo "2004"]
[PlyCount "40"]
[EventDate "2026.??.??"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. Nd2 Nxd2 5. Qxd2 c5 6. dxc5 Nc6 7. b4 e5 8. Bg3 f6 9. e3 a5 10. c3 axb4 11. cxb4 b6 12. Bb5 Bb7 13. Rc1 bxc5 14. bxc5 Be7 15. Ne2 O-O 16. O-O Rc8 17. Rfd1 Na7 18. c6 Nxc6 19. Bxc6 Bxc6 20. f4 Ba3 1/2-1/2

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van der Knaap, Jan"]
[Black "Wooter, Robin"]
[Result "0-1"]
[WhiteElo "1881"]
[BlackElo "2089"]
[PlyCount "80"]
[EventDate "2026.??.??"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 b5 7. Bc2 Bb7 8. d4 e6 9. O-O Be7 10. Re1 O-O 11. Nbd2 Qc7 12. Bd3 e5 13. a4 c4 14. Bc2 Rfe8 15. axb5 axb5 16. Rxa8 Rxa8 17. Nf1 Bf8 18. Ng3 g6 19. h4 h5 20. Ng5 Bg7 21. Nf1 Re8 22. d5 Nc5 23. Be3 Ra8 24. Nh2 Bc8 25. f3 Ra2 26. Rb1 Nfd7 27. Nf1 Qa5 28. Nd2 Na4 29. Bxa4 Qxa4 30. Qf2 Qc2 31. g4 Nf6 32. gxh5 gxh5 33. Qg2 Rxb2 34. Rxb2 Qxb2 35. Nh3 Qxc3 36. Bh6 Ne8 37. Nf2 Qc1+ 38. Kh2 c3 39. Nd3 Qc2 40. Bxg7 Qxd2 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Margaryan, Artur"]
[Black "Beijen, Mark"]
[Result "1-0"]
[WhiteElo "2134"]
[BlackElo "1953"]
[PlyCount "89"]
[EventDate "2026.??.??"]

1. c4 Nf6 2. d4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. g3 Bg7 9. Bg2 O-O 10. O-O Nbd7 11. Re1 Qb6 12. Rb1 Ng4 13. Qc2 c4 14. Rf1 Rfb8 15. h3 Nge5 16. Ne1 Nc5 17. Be3 Ned7 18. Nf3 Qa5 19. Nd4 Qc7 20. Nc6 Re8 21. b4 cxb3 22. axb3 Rac8 23. b4 Bxc3 24. Qxc3 Na4 25. Qb3 Bb5 26. Rfc1 Qb7 27. Ra1 Ndb6 28. Ra3 Ra8 29. Rca1 Bc4 30. Qc2 Bb5 31. Kh2 h5 32. h4 Qd7 33. Bxb6 Nxb6 34. Ra7 Rxa7 35. Rxa7 Qg4 36. Bf3 Qc4 37. Nxe7+ Kf8 38. Qd2 Kg7 39. Qg5 Qc2 40. Rb7 Bxe2 41. Bxe2 Qxe2 42. Nf5+ Kg8 43. Nh6+ Kg7 44. Rxf7+ Kh8 45. Qf6# 1-0

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Hensbergen, Willem"]
[Black "Molenkamp, Jan Bertus"]
[Result "0-1"]
[WhiteElo "2062"]
[BlackElo "1867"]
[PlyCount "108"]
[EventDate "2026.??.??"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. b3 Nc6 7. Bb2 d5 8. Nbd2 Bd6 9. a3 O-O 10. Ne5 Ne7 11. f4 Ne4 12. c4 f6 13. Nef3 Nf5 14. Qe1 Qe8 15. Bc2 Ne7 16. Rd1 Rd8 17. Nxe4 dxe4 18. Nd2 f5 19. Nb1 Qh5 20. Qc3 Qf7 21. Kh1 Ng6 22. dxc5 Bxc5 23. b4 Be7 24. Bb3 Bf6 25. Qc2 Kh8 26. Nc3 a6 27. Na4 Bxb2 28. Qxb2 Qc7 29. Rd4 Bc6 30. Rfd1 Bxa4 31. Bxa4 Rxd4 32. Qxd4 e5 33. fxe5 Nxe5 34. c5 bxc5 35. bxc5 Nd3 36. Rd2 Rd8 37. Qc4 Qa5 38. Re2 Qxc5 39. Qxc5 Nxc5 40. Bc2 Nd3 41. h3 g6 42. Ba4 Rc8 43. Rc2 Rxc2 44. Bxc2 Kg7 45. Kg1 Kf6 46. Kf1 Nc5 47. Ke2 Ke5 48. Bb1 h6 49. Ba2 g5 50. Bf7 f4 51. Bc4 a5 52. Bf7 Nd7 53. Be8 Nb6 54. Bf7 Nd5 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van der Scheer, Henk"]
[Black "Margaryan, Aren"]
[Result "1/2-1/2"]
[WhiteElo "1939"]
[BlackElo "2043"]
[PlyCount "53"]
[EventDate "2026.??.??"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. c4 c5 5. Nc3 Nc6 6. a3 dxc4 7. Bxc4 a6 8. dxc5
Qxd1+ 9. Kxd1 Bxc5 10. b4 Be7 11. Bb2 O-O 12. Ke2 e5 13. Nd5 e4 14. Nxe7+ Nxe7
15. Nd2 Bf5 16. Bxf6 gxf6 17. Rac1 Rac8 18. Ba2 Bg6 19. Rhd1 Rfd8 20. Nb3 Nc6
21. Nc5 Ne5 22. Rxd8+ Rxd8 23. Bb1 Rc8 24. Kd2 Rd8+ 25. Ke1 Rc8 26. Kd2 Rd8+
27. Ke1 1/2-1/2

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van Dijk, Eduard"]
[Black "Veldhuyzen, Ywein"]
[Result "0-1"]
[WhiteElo "1982"]
[BlackElo "1925"]
[PlyCount "84"]
[EventDate "2026.??.??"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Bd6 7. Ne2 O-O 8. O-O Nd7 9. Ng3 Nb6 10. Bd3 Re8 11. c4 Bf8 12. Be3 Be6 13. Qb3 g6 14. Rfd1 Qe7 15. Rac1 Rad8 16. Ne2 Qb4 17. Qc2 Bg7 18. c5 Bxa2 19. cxb6 Qxb6 20. Bc4 Bxc4 21. Qxc4 f5 22. b4 Rd5 23. Nc3 Rd7 24. d5 Rxe3 25. fxe3 Qxe3+ 26. Kh1 Be5 27. dxc6 bxc6 28. Re1 Qh6 29. h3 Re7 30. Ne2 Qg5 31. Rcd1 Re6 32. Rd8+ Qxd8 33. Rf1 Qd5 34. Qa6 Bd6 35. Ng1 Qb5 36. Qc8+ Kg7 37. Rd1 Qxb4 38. Qxc6 Bc5 39. Qf3 Bxg1 40. Kxg1 Re1+ 41. Rxe1 Qxe1+ 42. Kh2 Qa1 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Veenendaal, Loek"]
[Black "Verhoeff, Timardi"]
[Result "1-0"]
[WhiteElo "1962"]
[BlackElo "1921"]
[PlyCount "91"]
[EventDate "2026.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. Be3 O-O 9. Qd2 Ng4 10. Bxg4 Bxg4 11. O-O Rc8 12. b3 Qa5 13. Rac1 Rfe8 14. f3 Bd7 15. Rfd1 Nxd4 16. Bxd4 Bxd4+ 17. Qxd4 Bc6 18. Rb1 Qc5 19. Qxc5 dxc5 20. Rb2 Red8 21. Rbd2 Rxd2 22. Rxd2 Kf8 23. Kf2 Ke8 24. Ke3 h5 25. h4 Rd8 26. Rxd8+ Kxd8 27. g4 f6 28. gxh5 gxh5 29. Kf4 e6 30. Ne2 b5 31. cxb5 Bxb5 32. Ng3 Bd3 33. Nxh5 Bb1 34. a3 a5 35. Ke3 Bc2 36. Nxf6 Bxb3 37. e5 Ke7 38. Ne4 Kf7 39. Nxc5 Bd5 40. Kf4 Kg6 41. Nd7 Bc6 42. Nf6 Bb5 43. h5+ Kh6 44. Kg4 Bd3 45. Kh4 Be2 46. Ng4+ 1-0

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Kurtoglu, Devrim"]
[Black "Brienen, Jacob"]
[Result "0-1"]
[ECO "E19"]
[WhiteElo "1850"]
[BlackElo "2140"]
[PlyCount "54"]
[EventDate "2026.??.??"]
[EventCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 f5 9. Nd2 d5 10. f3 Nxc3 11. bxc3 Nd7 12. Bb2 c5 13. e4 f4 14. cxd5 exd5 15. exd5 cxd4 16. c4 Bc5 17. Qe4 fxg3 18. hxg3 Qg5 19. Nb3 Rae8 20. Qg4 Qe3+ 21. Kh2 Ne5 22. Qh4 Nxf3+ 23. Bxf3 Rxf3 24. Bxd4 Qe2+ 25. Kg1 Bxd4+ 26. Nxd4 Rxf1+ 27. Rxf1 Qxc4 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van Veen, Kylian"]
[Black "Zeven, Frank"]
[Result "0-1"]
[WhiteElo "1906"]
[BlackElo "1979"]
[PlyCount "52"]
[EventDate "2026.??.??"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4
f6 9. exf6 Nxf6 10. O-O Bd6 11. Nf3 O-O 12. Bg5 Qc7 13. Nc3 a6 14. Rc1 Nh5 15.
Ne5 Nf4 16. Bxf4 Rxf4 17. Ne2 Bxe5 18. dxe5 Rh4 19. f4 Qb6+ 20. Rf2 Rxh2 21.
Kxh2 Qxf2 22. Ng3 Qxf4 23. Bxh7+ Kxh7 24. Qd3+ Kg8 25. Rf1 Qh4+ 26. Kg1 Qd4+
0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Kumar, Dhruv"]
[Black "Morssink, Pieter Jan"]
[Result "0-1"]
[WhiteElo "1869"]
[BlackElo "1955"]
[PlyCount "88"]
[EventDate "2026.??.??"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 c6 5. Be3 d5 6. e5 h5 7. Nf3 Nh6 8. Ng5 Bg4 9. Be2 Bxe2 10. Qxe2 e6 11. h3 Nf5 12. Bf2 Na6 13. O-O-O h4 14. Rd2 Qe7 15. Nd1 O-O-O 16. Ne3 Kb8 17. Nxf5 gxf5 18. Qe1 Rc8 19. Bxh4 c5 20. Bf2 cxd4 21. Bxd4 Nb4 22. a3 Nc6 23. Qf2 Bxe5 24. Bxe5+ Nxe5 25. Re1 Nc4 26. Rxd5 Nxa3 27. c3 Qb4 28. Rd3 Nb5 29. Red1 Qa4 30. Nxf7 Rh7 31. Nd6 Nxd6 32. Rxd6 Rhc7 33. Qc2 Qxf4+ 34. Kb1 e5 35. Rf6 e4 36. g4 Rc5 37. Re1 Qg3 38. Rh1 fxg4 39. Qxe4 Re5 40. Qh7 Qg2 41. hxg4 Re2 42. Qf7 Qxh1+ 43. Ka2 Qd1 44. Rf4 Re5 0-1

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Prijs, Xander"]
[Black "Muilwijk, Marco"]
[Result "1/2-1/2"]
[WhiteElo "1914"]
[BlackElo "1884"]
[PlyCount "87"]
[EventDate "2026.??.??"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Nf3 Nc6 5. e3 d6 6. Bd3 Nc5 7. exd6 Nxd3+ 8. Qxd3 Bxd6 9. Qe4+ Be6 10. O-O Qf6 11. Nc3 O-O-O 12. Nb5 Be7 13. Bd2 a6 14. Bc3 Qf5 15. Qxf5 Bxf5 16. Nbd4 Nxd4 17. Nxd4 Bd3 18. Rfc1 Bf6 19. Nf3 Bxc3 20. Rxc3 f6 21. Nd4 Bg6 22. c5 f5 23. f4 Rhe8 24. Kf2 Rd5 25. Re1 Bf7 26. h4 Bh5 27. b4 c6 28. a4 Kd7 29. b5 axb5 30. axb5 cxb5 31. Nxb5 Rd2+ 32. Kg3 Re6 33. Kh2 Rg6 34. Nd4 Rgxg2+ 35. Kh1 Bg4 36. Rd3 Rh2+ 37. Kg1 Rhg2+ 38. Kh1 Rh2+ 39. Kg1 Rdg2+ 40. Kf1 Ke7 41. e4 Rf2+ 42. Kg1 Rfg2+ 43. Kf1 Rf2+ 44. Kg1 1/2-1/2

[Event "PK LSB groep A"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Wagemans, Ed"]
[Black "Scherpenisse, Kees"]
[Result "1/2-1/2"]
[WhiteElo "1857"]
[BlackElo "1910"]
[PlyCount "54"]
[EventDate "2026.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 c6 6. Bc4 d5 7. exd5 cxd5 8.
Bb5+ Bd7 9. Bxd7+ Qxd7 10. O-O O-O-O 11. Bf4 Nf6 12. Nd2 Bd6 13. Qf3 h6 14. Nb3
Qf5 15. Bxd6 Qxf3 16. gxf3 Rxd6 17. Nxd4 Nh5 18. Rfe1 Nf4 19. Kh1 Ne6 20. Nxe6
Rxe6 21. Rxe6 fxe6 22. Re1 Kd7 23. Kg2 g5 24. Kg3 Rf8 25. d4 Rf4 26. c3 Kd6 27.
Re5 b5 1/2-1/2

[Event "PK LSB groep B"]
[Site "Leiden, Netherlands"]
[Date "2026.05.18"]
[Round "2"]
[White "Rudman, Lev"]
[Black "Van Amsterdam, Jan"]
[Result "0-1"]
[WhiteElo "1776"]
[BlackElo "1842"]
[PlyCount "60"]
[EventDate "2026.??.??"]

1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. Nc3 Bb4 5. e3 Ne4 6. Qc2 f5 7. a3 Bxc3+ 8. bxc3
Bb7 9. a4 O-O 10. Bd3 Rf6 11. Nd2 Nxd2 12. Qxd2 Rg6 13. f3 d6 14. Qe2 Nd7 15.
Bb2 Qg5 16. g3 Re8 17. e4 fxe4 18. Bxe4 Bxe4 19. Qxe4 Nf6 20. Qd3 e5 21. O-O
Nh5 22. Bc1 Qf6 23. f4 exf4 24. Qf3 fxg3 25. Qd5+ Qe6 26. Qxh5 gxh2+ 27. Kxh2
Qxc4 28. Rf2 Qxc3 29. Qd5+ Kh8 30. Rf3 Qc2+ 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van Vleuten, Ronald"]
[Black "Amkreutz, Mitch"]
[Result "0-1"]
[WhiteElo "1736"]
[BlackElo "1829"]
[PlyCount "132"]
[EventDate "2026.??.??"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Nbd2 e6 5. h3 Bxf3 6. Nxf3 Bd6 7. Bd3 Nbd7 8. c3 O-O 9. O-O c5 10. b3 cxd4 11. cxd4 Rc8 12. Bb2 Nb8 13. Rc1 Rxc1 14. Qxc1 Nc6 15. Ne5 Nb4 16. Bb1 Qb8 17. a3 Rc8 18. Qd2 Nc6 19. Rc1 Rc7 20. Nf3 Qc8 21. g3 b6 22. Bd3 Na5 23. Rxc7 Qxc7 24. Qc2 Qxc2 25. Bxc2 Ne4 26. Kf1 h5 27. Ke2 g6 28. Nd2 Nxd2 29. Kxd2 Kf8 30. Kc3 e5 31. Bd3 exd4+ 32. exd4 Ke7 33. Bb5 Ke6 34. b4 Nb7 35. Bc1 Be7 36. Ba6 Nd6 37. Kd3 Bf6 38. g4 hxg4 39. hxg4 Kd7 40. f3 Kc6 41. Bf4 Nb5 42. Be5 Bxe5 43. dxe5 g5 44. a4 Nc7 45. b5+ Kc5 46. Bb7 Ne6 47. Bc6 Nd4 48. Ke3 Ne6 49. Be8 Nd8 50. Kd3 d4 51. Bd7 Kd5 52. Bf5 Kxe5 53. Bd7 Nb7 54. Kc4 Nc5 55. Be8 d3 56. Kc3 f6 57. Bg6 Kf4 58. a5 Kxf3 59. axb6 axb6 60. Bf5 Ke2 61. Kd4 d2 62. Bc2 d1=Q+ 63. Bxd1+ Kxd1 64. Kd5 Ke2 65. Kc6 Na4 66. Kd6 Kf3 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Schenkelaars, Vincent"]
[Black "Vergeer, Michiel"]
[Result "0-1"]
[WhiteElo "1824"]
[BlackElo "1774"]
[PlyCount "106"]
[EventDate "2026.??.??"]

1. d4 f5 2. g3 Nf6 3. h4 e6 4. Nh3 c5 5. c3 d5 6. Bg2 Nc6 7. O-O Bd7 8. dxc5 Bxc5 9. Nd2 O-O 10. Nf3 Rc8 11. Qe1 Qe7 12. a4 e5 13. e3 Bd6 14. Qd1 h6 15. Re1 Be6 16. b4 Rfd8 17. Qe2 Qc7 18. Bb2 Ne7 19. Nd2 Bf7 20. Rec1 Qd7 21. f4 e4 22. Nb3 a6 23. Nf2 Nc6 24. Bf1 Be7 25. Qe1 Kh7 26. b5 Nb8 27. Rc2 g6 28. Rac1 Qe8 29. Be2 Rc7 30. Qf1 axb5 31. axb5 Nbd7 32. c4 dxc4 33. Bxc4 Bxc4 34. Rxc4 Rxc4 35. Qxc4 Nb6 36. Qe2 Nfd5 37. Bd4 Rc8 38. Ra1 Nc3 39. Qf1 Nbd5 40. b6 Nb5 41. Nd1 Nxd4 42. Nxd4 Nxb6 43. Rb1 Bc5 44. Nb5 Nd5 45. Qe2 b6 46. Rb3 Ra8 47. Kf2 Ra5 48. Nd4 Qa8 49. g4 Ra2 50. Rb2 Ra4 51. gxf5 Bxd4 52. fxg6+ Kg7 53. exd4 Nxf4 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Verbaken, Ilja"]
[Black "Oudshoorn, Paul"]
[Result "1-0"]
[WhiteElo "1718"]
[BlackElo "1798"]
[PlyCount "51"]
[EventDate "2026.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a3 d6 7. Bc4 g6 8. Be3
Bg7 9. Qd2 O-O 10. f3 Nxd4 11. Bxd4 b5 12. Bb3 Bb7 13. h4 Qa5 14. g4 Rfd8 15.
h5 e5 16. Be3 d5 17. exd5 Nxd5 18. hxg6 hxg6 19. Bxd5 Bxd5 20. Qh2 Bxf3 21.
Qh7+ Kf8 22. Bc5+ Ke8 23. Qg8+ Kd7 24. Qxf7+ Kc6 25. Qxf3+ Kc7 26. b4 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Lewerissa, Bas"]
[Black "Van der Plas, Jan"]
[Result "1-0"]
[WhiteElo "1782"]
[BlackElo "1769"]
[PlyCount "65"]
[EventDate "2026.??.??"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg4 5. Nf3 Bg7 6. Be2 e6 7. h3 Bxf3 8. Bxf3 c6 9. O-O O-O 10. Be3 Na6 11. e5 dxe5 12. dxe5 Nd5 13. Nxd5 cxd5 14. c4 Nc7 15. cxd5 Nxd5 16. Bxd5 Qxd5 17. Qxd5 exd5 18. Bc5 Rfc8 19. Rac1 b6 20. Bd6 Rc4 21. Rxc4 dxc4 22. Kf2 Bf8 23. Ke3 f6 24. Kd4 Rd8 25. Kd5 b5 26. Rd1 Bxd6 27. exd6 Kf7 28. Kc6 b4 29. Kc7 Re8 30. d7 Re7 31. Kc6 Rxd7 32. Rxd7+ Ke6 33. Rd4 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Burgers, Bram"]
[Black "Van Leeuwen, Nick"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "1835"]
[BlackElo "1696"]
[PlyCount "91"]
[EventDate "2026.??.??"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O Be6 8. d3 Qd7 9. f4 c6 10. Rb1 a5 11. a3 Bh3 12. f5 Bxg2 13. Kxg2 d5 14. Bg5 dxe4 15. dxe4 Qxd1 16. Rbxd1 Nbd7 17. Rd6 h6 18. Be3 a4 19. Rfd1 Nb8 20. h3 Na6 21. Bb6 Rfe8 22. g4 gxf5 23. gxf5 Rac8 24. Kf3 Nc7 25. Nxa4 Na8 26. Nec3 Kh7 27. Be3 b5 28. cxb5 cxb5 29. Nxb5 Nxe4 30. Kxe4 Rc4+ 31. Kf3 Rxa4 32. b4 e4+ 33. Kg4 Re5 34. R1d5 Rxd5 35. Rxd5 Bf8 36. Rd7 Kg8 37. Rd8 Nc7 38. Nxc7 Rxa3 39. Bc5 h5+ 40. Kf4 h4 41. Rxf8+ Kg7 42. Ne8+ Kh7 43. Bd4 f6 44. Nxf6+ Kg7 45. Rg8+ Kh6 46. Rg6# 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Moeri, Casper"]
[Black "Branco, Moritz"]
[Result "0-1"]
[WhiteElo "1751"]
[BlackElo "1808"]
[PlyCount "66"]
[EventDate "2026.??.??"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d4 d5 5. exd5 exd5 6. Bd3 Nf6 7. h3 Bd6 8. O-O O-O 9. Bg5 h6 10. Be3 cxd4 11. cxd4 Ne4 12. Nc3 Nf6 13. Re1 Re8 14. a3 a6 15. Rc1 Bc7 16. Qb3 Ne7 17. Qc2 Bd7 18. Na4 Rc8 19. Nc5 Bc6 20. Qd2 Ne4 21. Bxe4 dxe4 22. Nh2 Nd5 23. Nf1 f5 24. Qc2 Qf6 25. Nd2 Qd6 26. g3 Qg6 27. Kh1 Bb8 28. Qb3 Kh8 29. Rg1 Qh5 30. Kg2 f4 31. gxf4 Bxf4 32. Rh1 Nxe3+ 33. fxe3 Qe2+ 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Asthana, Reyansh"]
[Black "Moeri, Erick"]
[Result "0-1"]
[WhiteElo "1507"]
[BlackElo "1800"]
[PlyCount "44"]
[EventDate "2026.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 h6 6. g3 Qb6 7. Bg2 Nge7 8. O-O
cxd4 9. cxd4 Nf5 10. Qa4 Bd7 11. Bd2 Ncxd4 12. Qd1 Nxf3+ 13. Qxf3 Bc5 14. Na3
Qxb2 15. Bc1 Qxa1 16. Qb3 Qxe5 17. Qxb7 Rb8 18. Qa6 Qc3 19. Nb1 Qd4 20. Na3 O-O
21. Bf4 Rb2 22. Bc7 Rxf2 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Been, Klaas"]
[Black "Fakkert, Erwin"]
[Result "1-0"]
[WhiteElo "1727"]
[BlackElo "1781"]
[PlyCount "93"]
[EventDate "2026.??.??"]

1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 5. O-O O-O 6. Re1 Nbd7 7. Nbd2 Re8 8. c3 c6 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Nf6 12. Bc2 Qd6 13. Ne5 Nd7 14. f4 e6 15. Be3 Qc7 16. Qf3 Nxe5 17. fxe5 b6 18. Be4 Bb7 19. Bg5 Rab8 20. Bf6 c5 21. Bxg7 Kxg7 22. Qf6+ Kg8 23. Re3 cxd4 24. cxd4 Rbd8 25. Bxb7 Qxb7 26. Qh4 Qe7 27. Qf4 Qb4 28. Re4 Qxb2 29. Rf1 Rf8 30. a4 Rc8 31. h4 Rc2 32. Qg4 h5 33. Qg5 Re2 34. Ref4 Qb4 35. Kh2 Rd2 36. d5 Rd4 37. dxe6 Rxf4 38. Rxf4 Qc5 39. exf7+ Rxf7 40. Qxg6+ Rg7 41. Qe8+ Kh7 42. Qxh5+ Kg8 43. Qe8+ Kh7 44. Rf8 Rxg2+ 45. Kxg2 Qc2+ 46. Kg3 Qd3+ 47. Rf3 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van Dijk, Jeroen"]
[Black "Nouwens, Jeroen"]
[Result "0-1"]
[WhiteElo "1667"]
[BlackElo "1843"]
[PlyCount "78"]
[EventDate "2026.??.??"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 d6 6. O-O Bd7 7. e3 a6 8. d4
Ba7 9. Re1 O-O 10. a3 Rb8 11. b4 b5 12. c5 e4 13. Nd2 d5 14. f3 exf3 15. Nxf3
Bg4 16. Qc2 Re8 17. Bd2 Ne4 18. Rf1 Nxc3 19. Bxc3 Rxe3 20. Bd2 Rxf3 21. Bxf3
Bxf3 22. Rxf3 Nxd4 23. Qd3 Nxf3+ 24. Qxf3 c6 25. Qg4 Qc8 26. Qxc8+ Rxc8 27. Re1
Kf8 28. Bc3 Bb8 29. Kf2 f6 30. h3 Re8 31. Rxe8+ Kxe8 32. Kf3 Be5 33. Bxe5 fxe5
34. g4 Kf7 35. h4 Kf6 36. Ke3 g5 37. h5 h6 38. Kf3 e4+ 39. Ke3 Ke5 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Bertman, Max"]
[Black "Mulder, Abel"]
[Result "1-0"]
[WhiteElo "1832"]
[BlackElo "1653"]
[PlyCount "75"]
[EventDate "2026.??.??"]

1. e4 e5 2. Nf3 d5 3. Nxe5 Nf6 4. exd5 Qxd5 5. Qe2 Be6 6. Nc3 Qd6 7. b3 c6 8. Bb2 Qc5 9. O-O-O Be7 10. h4 Nbd7 11. Nxd7 Kxd7 12. d4 Qa5 13. Kb1 Bb4 14. Ne4 Nd5 15. Nc5+ Kc7 16. Nxe6+ fxe6 17. Qxe6 Rae8 18. Qh3 Nc3+ 19. Bxc3 Bxc3 20. Qg3+ Kc8 21. Bd3 Rhf8 22. Bxh7 Rxf2 23. Rd3 Bxd4 24. Qg4+ Kb8 25. Qxd4 Rxg2 26. Qd7 Qe5 27. Qd6+ Qxd6 28. Rxd6 Kc7 29. Rg6 Rxg6 30. Bxg6 Re6 31. h5 Kd6 32. Rd1+ Kc5 33. Rd7 b5 34. Rxg7 a5 35. Kb2 a4 36. h6 Kb4 37. a3+ Kc5 38. b4+ 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Van Polen, John"]
[Black "Groenendijk, Patrick"]
[Result "0-1"]
[WhiteElo "1600"]
[BlackElo "1815"]
[PlyCount "80"]
[EventDate "2026.??.??"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Nc3 b6 8. Re1 Bb7 9. Qc2 Nbd7 10. b3 c5 11. Ba3 dxc4 12. Rad1 cxb3 13. Qxb3 cxd4 14. Rxd4 Bxa3 15. Qxa3 Qc7 16. Nb5 Qc5 17. Qb2 a6 18. Nd6 Bd5 19. Qb4 Qxb4 20. Rxb4 Bxa2 21. e4 e5 22. Ng5 h6 23. Re2 Be6 24. Nxe6 fxe6 25. Bh3 a5 26. Bxe6+ Kh7 27. Rbb2 Nc5 28. Bf5+ g6 29. Bh3 Rab8 30. Red2 Rfd8 31. Nf7 Rxd2 32. Rxd2 Nfxe4 33. Rd5 Rf8 34. Nxe5 Nxf2 35. Bf1 Nfe4 36. Bg2 Rf6 37. Rd8 Rd6 38. Re8 Kg7 39. Ng4 Nf6 40. Nxf6 Kxf6 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Pasteels, Luc"]
[Black "Lim, Danny"]
[Result "0-1"]
[WhiteElo "1714"]
[BlackElo "1538"]
[PlyCount "106"]
[EventDate "2026.??.??"]

1. e4 e5 2. Nf3 d6 3. Bc4 Bg4 4. O-O Qf6 5. d3 Bxf3 6. Qxf3 Qxf3 7. gxf3 Nc6 8. c3 O-O-O 9. Bxf7 g6 10. f4 Bh6 11. fxe5 Bxc1 12. Rxc1 Nxe5 13. Be6+ Kb8 14. d4 Nd3 15. Rc2 Rf8 16. Na3 Nf6 17. Bc4 Nf4 18. Re1 Re8 19. Kf1 Rxe4 20. Rxe4 Nxe4 21. f3 Ng5 22. Kf2 Rf8 23. h4 Nge6 24. Bxe6 Nxe6 25. Kg3 h5 26. Re2 Ng7 27. Nc4 Kc8 28. Nd2 Kd7 29. Ne4 Nf5+ 30. Kh3 Kc6 31. Rg2 Ne7 32. Ng5 Rf4 33. Kg3 Rf6 34. Ne4 Rf8 35. Kf2 Rf4 36. Kg3 Rf5 37. Kf2 Kd5 38. Ke3 Kc4 39. Nd2+ Kd5 40. Ne4 Kc4 41. b3+ Kb5 42. Rg5 Rxg5 43. hxg5 Nf5+ 44. Kf4 Ne7 45. Nf6 a5 46. Ke4 h4 47. a4+ Kc6 48. Kf4 Nf5 49. Kg4 b5 50. d5+ Kc5 51. Kf4 bxa4 52. bxa4 Kc4 53. Nd7 h3 0-1

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Bharos, Nimai"]
[Black "Lammers van Toorenburg, Ev"]
[Result "1-0"]
[WhiteElo "1700"]
[BlackElo "1464"]
[PlyCount "25"]
[EventDate "2026.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 Nf6 7. Bg5 Be6 8.
Nd5 Bxd5 9. exd5 Nb4 10. Bxf6 Qxf6 11. Nc7+ Kd7 12. Nxa8 Be7 13. Qg4+ 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Feldmeijer, Reitze"]
[Black "Hollenberg, Pieter"]
[Result "1-0"]
[WhiteElo "1695"]
[BlackElo "1250"]
[PlyCount "55"]
[EventDate "2026.??.??"]

1. Nf3 Nf6 2. c4 c5 3. g3 e6 4. Bg2 Nc6 5. O-O d5 6. cxd5 exd5 7. d4 Bd6 8.
dxc5 Bxc5 9. Nc3 d4 10. Na4 Be7 11. b3 O-O 12. Bf4 b5 13. Nb2 Qb6 14. Nd3 Bf5
15. Nfe5 Bd7 16. Bg5 Rad8 17. Nxd7 Rxd7 18. Rc1 Rc7 19. Bf4 Rcc8 20. Bh3 Rcd8
21. Qc2 Nb4 22. Nxb4 Bxb4 23. Bc7 Rc8 24. Bxc8 Rxc8 25. Bxb6 Rxc2 26. Rxc2 axb6
27. Rcc1 Bf8 28. Rfd1 1-0

[Event "PK LSB groep B"]
[Site "Leiden"]
[Date "2026.05.18"]
[Round "2"]
[White "Bingen, Stanley"]
[Black "Tegelaar, Nick"]
[Result "0-1"]
[WhiteElo "1412"]
[BlackElo "1672"]
[PlyCount "62"]
[EventDate "2026.??.??"]

1. c4 e5 2. d3 Nc6 3. Nc3 Bc5 4. g3 Nge7 5. Bg2 O-O 6. a3 a5 7. Nf3 d5 8. cxd5
Nxd5 9. Nxd5 Qxd5 10. Nh4 Qe6 11. O-O f5 12. Nf3 f4 13. Ng5 Qf5 14. Ne4 Ba7 15.
e3 f3 16. Bh1 Be6 17. h4 Rad8 18. Qc2 Bc8 19. Rd1 Rfe8 20. Ng5 h6 21. e4 Qf6
22. Nxf3 Bg4 23. Be3 Bxf3 24. Bxf3 Bxe3 25. Qb3+ Kh8 26. fxe3 Qxf3 27. Kh2 Qxe3
28. Qxb7 Nd4 29. Qxc7 Ne2 30. Qxa5 Qxg3+ 31. Kh1 Qh3# 0-1

