[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Pijpers, Arthur"]
[Black "Polak, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2459"]
[BlackElo "2194"]
[PlyCount "63"]
[EventDate "2023.??.??"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 cxd4 7. Nxd4 Ne7 8. Nd2
Nbc6 9. Bb5 a6 10. Bxc6+ Nxc6 11. Nxf5 exf5 12. Nf3 Qa5+ 13. c3 Qb5 14. Qb3 Na5
15. Qc2 Nc4 16. O-O Nxe3 17. fxe3 g6 18. Rfd1 Bh6 19. Rd3 O-O-O 20. Rad1 Qc5
21. b4 Bxe3+ 22. Kh1 Qb6 23. a4 Bh6 24. a5 Qb5 25. Nd4 Qc4 26. e6 fxe6 27. Nxe6
Rd6 28. Nc5 Re8 29. Qf2 Qf4 30. Qg1 Qe5 31. Nxb7 Kxb7 32. Rxd5 1/2-1/2

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Van der Marel, Lambertus"]
[Black "Van der Knaap, Jan"]
[Result "0-1"]
[WhiteElo "2087"]
[BlackElo "1890"]
[PlyCount "124"]
[EventDate "2023.??.??"]

1. d4 d6 2. Nf3 g6 3. e4 Nf6 4. Nc3 Bg7 5. h3 a6 6. a4 O-O 7. Bd3 Nc6 8. Be3 e5
9. d5 Ne7 10. a5 Ne8 11. Bc4 f5 12. Ng5 Nf6 13. f3 h6 14. Ne6 Bxe6 15. dxe6 f4
16. Bf2 Nh5 17. h4 Bf6 18. Nd5 Kh7 19. Qd2 Nc6 20. O-O-O Ng7 21. g4 fxg3 22.
Be3 Nxe6 23. Bxh6 Ng7 24. Bg5 Nh5 25. Nxf6+ Rxf6 26. Be6 Nd4 27. Bg4 Qf8 28. f4
Rxf4 29. Bxf4 Nxf4 30. h5 g5 31. h6 Qf7 32. Kb1 Rf8 33. c3 Nb3 34. Qe3 g2 35.
Bf5+ Kh8 36. Rhg1 Nxa5 37. Qf3 Nc4 38. Kc2 Na5 39. Rd2 Qb3+ 40. Kb1 Nc4 41.
Rdxg2 Nxg2 42. Rxg2 Na3+ 43. Kc1 Nc4 44. Qg3 Qa2 45. Qxg5 Qa1+ 46. Kc2 Qxb2+
47. Kd3 Qb1+ 48. Ke2 Qc2+ 49. Ke1 Qxc3+ 50. Ke2 Qc2+ 51. Kf3 Qd3+ 52. Kf2 Qd4+
53. Ke2 Qb2+ 54. Kd3 Qd4+ 55. Ke2 Qb2+ 56. Kf1 Qa1+ 57. Kf2 Qd4+ 58. Kf3 Qd3+
59. Kg4 Rg8 60. Bg6 Ne3+ 61. Kh3 Nxg2+ 62. Kxg2 Qxe4+ 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Van Efferen, Yannick"]
[Black "Margaryan, Artur"]
[Result "0-1"]
[WhiteElo "1860"]
[BlackElo "2074"]
[PlyCount "110"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nc3 a6 3. a4 Nc6 4. Bc4 e6 5. d3 Nf6 6. Bg5 Be7 7. Nf3 h6 8. Bh4
Qc7 9. O-O O-O 10. Re1 d6 11. Qd2 Bd7 12. Nd5 exd5 13. exd5 Ne5 14. Nxe5 dxe5
15. d6 Qxd6 16. Bg3 Be6 17. Bxe6 Qxe6 18. Rxe5 Qd7 19. Bh4 Qd4 20. Rxe7 Qxh4
21. Rxb7 Rfe8 22. b4 c4 23. Rb1 Qd4 24. a5 Rab8 25. Rc7 Rec8 26. Rxc8+ Rxc8 27.
Qe2 Nd5 28. Qf3 cxd3 29. cxd3 Nxb4 30. Qb7 Rc2 31. Qb6 Nc6 32. h3 Qxd3 33. Qb7
Nxa5 34. Qb8+ Kh7 35. Qe5 Nc4 36. Qe8 Re2 37. Qb8 a5 38. Rb7 Qd1+ 39. Kh2 Qd6+
40. Qxd6 Nxd6 41. Rd7 Rd2 42. Ra7 Rd5 43. Kg3 f5 44. Kf4 Kg6 45. g4 Kf6 46.
gxf5 Rxf5+ 47. Ke3 g5 48. Ra8 Rf4 49. Rh8 Rh4 50. Rf8+ Ke6 51. Rf3 Kd5 52. Kd3
Kc5 53. Kc3 a4 54. Re3 Nb5+ 55. Kb2 Kb4 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Passenier, Peter"]
[Black "Andringa, Arjo"]
[Result "1-0"]
[WhiteElo "2170"]
[BlackElo "2014"]
[PlyCount "59"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. O-O d6 7. Bb3 Ba7 8. Re1
h6 9. Nbd2 O-O 10. h3 Be6 11. Nf1 Re8 12. N3h2 d5 13. Qf3 b5 14. Ng3 d4 15. Nf5
Kh7 16. Ng4 dxc3 17. bxc3 Nxg4 18. hxg4 g5 19. Bd5 Bxd5 20. exd5 e4 21. Qh3 Qf6
22. dxc6 exd3 23. Bd2 Rxe1+ 24. Rxe1 Rd8 25. Re7 Bb6 26. Rxf7+ Qxf7 27. Qxh6+
Kg8 28. Qxg5+ Kh7 29. Qh4+ Kg6 30. Qh6# 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Vijver, Jonathan"]
[Black "Timmermans, Raymond"]
[Result "1/2-1/2"]
[WhiteElo "1824"]
[BlackElo "1974"]
[PlyCount "145"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. O-O Bd7 8. Re1
Nh6 9. Nbd2 dxc3 10. bxc3 Ng4 11. Qe2 Nxf2 12. Rb1 Nh3+ 13. Kh1 Nf2+ 14. Kg1
Nh3+ 15. Kh1 Nf4 16. Qf1 Qc7 17. Bc2 Ng6 18. Qe2 Be7 19. Nb3 Rc8 20. Bd2 a6 21.
g3 Na7 22. Qf2 Nb5 23. Rbc1 Na3 24. Bg5 Nxc2 25. Rxc2 Bxg5 26. Nxg5 O-O 27. Qe3
h6 28. Nf3 Ba4 29. h4 Rfd8 30. h5 Nf8 31. g4 Qc4 32. Nfd4 Nh7 33. Nd2 Qc7 34.
Rcc1 Qe7 35. N2f3 Ng5 36. Rf1 Rc7 37. Nxg5 Qxg5 38. Qg3 Rc4 39. Rce1 Rdc8 40.
Re3 Rxd4 41. cxd4 Bc2 42. Re2 Be4+ 43. Kh2 Rc2 44. Rxc2 Bxc2 45. Rf2 Be4 46.
Rf4 Qd8 47. Qf2 Qc7 48. Qd2 Qb6 49. Rf1 Qc7 50. Kh3 Qe7 51. Rg1 f6 52. Qf4 Qc7
53. Rc1 Qb8 54. Qg3 fxe5 55. dxe5 Qf8 56. Qe3 Qf3+ 57. Qxf3 Bxf3 58. Kg3 Be2
59. Rc7 b5 60. Re7 d4 61. Rxe6 d3 62. Rd6 a5 63. Kf4 Kf7 64. Kf5 b4 65. e6+ Ke7
66. Rd7+ Kf8 67. Rd8+ Ke7 68. Rd7+ Kf8 69. Ke5 Ke8 70. Rd4 Ke7 71. Rd7+ Ke8 72.
Rd4 Ke7 73. Rd7+ 1/2-1/2

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Van Drunick, Jan-Willem"]
[Black "Zeven, Frank"]
[Result "1-0"]
[WhiteElo "1933"]
[BlackElo "1929"]
[PlyCount "53"]
[EventDate "2023.??.??"]

1. d4 e6 2. c4 d5 3. Nc3 f5 4. Bf4 c6 5. e3 Bd6 6. Nf3 Nf6 7. Bd3 O-O 8. O-O
Qe7 9. Rc1 Ne4 10. h3 Nd7 11. Bxd6 Qxd6 12. Bxe4 fxe4 13. Nd2 e5 14. cxd5 Qg6
15. Qg4 Qxg4 16. hxg4 exd4 17. exd4 Nf6 18. dxc6 bxc6 19. g5 Ng4 20. Ndxe4 h6
21. gxh6 gxh6 22. Rce1 Rb8 23. f3 Nf6 24. Nxf6+ Rxf6 25. Re8+ Rf8 26. Rxf8+
Kxf8 27. b3 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Serdijn, Adinda"]
[Black "Van der Bent, Gideon"]
[Result "1/2-1/2"]
[WhiteElo "1957"]
[BlackElo "1961"]
[PlyCount "70"]
[EventDate "2023.??.??"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. h3 e6 7. Be2 Be7 8. O-O
O-O 9. Be3 cxd4 10. cxd4 a6 11. Nc3 Qd6 12. a3 b5 13. Ng5 Rd8 14. Nge4 Nxe4 15.
Nxe4 Qc7 16. Rc1 Bb7 17. Bf3 Rac8 18. Nc5 Bxc5 19. Rxc5 Qd7 20. d5 Ne5 21. dxe6
Nxf3+ 22. Qxf3 fxe6 23. Qg4 Rxc5 24. Bxc5 Qd5 25. b4 e5 26. Re1 e4 27. Be3 Bc8
28. Qg5 Be6 29. Rc1 h6 30. Qxd5 Bxd5 31. Rc7 Rd6 32. Bc5 Rg6 33. g3 Bc4 34. Kh2
Be2 35. Rd7 h5 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Zwinkels, Wim"]
[Black "De Leede, Tjeerd"]
[Result "0-1"]
[WhiteElo "1776"]
[BlackElo "1704"]
[PlyCount "36"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. O-O Bd7 8. Re1
Nge7 9. h4 Rc8 10. a3 dxc3 11. Nxc3 Na5 12. Be3 Qb3 13. Qe2 Nec6 14. Nb5 a6 15.
Nfd4 Nxd4 16. Nxd4 Qa4 17. b4 Nb3 18. Bc2 Nxd4 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Beetstra, Jaap"]
[Black "De Witte, Sjoerd"]
[Result "1/2-1/2"]
[WhiteElo "1738"]
[BlackElo "1648"]
[PlyCount "68"]
[EventDate "2023.??.??"]

1. e4 c5 2. b3 g6 3. Bb2 Nf6 4. e5 Nd5 5. e6 f6 6. exd7+ Bxd7 7. Nc3 Nc7 8. Nf3
e5 9. a4 Bg7 10. Bc4 Be6 11. Qe2 O-O 12. h4 Nc6 13. h5 Nd4 14. Nxd4 cxd4 15.
Nb5 Nd5 16. Nxd4 Bf7 17. hxg6 hxg6 18. Nf3 Nf4 19. Bxf7+ Rxf7 20. Qf1 e4 21.
Nh4 Rc8 22. O-O-O Rfc7 23. c3 Kf7 24. g3 Nd3+ 25. Kc2 Qd5 26. f3 Nb4+ 27. Kb1
Qxb3 28. fxe4 Qc2+ 29. Ka1 Nd3 30. Ba3 Qb3 31. Qxd3 Qxa3+ 32. Kb1 Qb3+ 33. Ka1
Qa3+ 34. Kb1 Qb3+ 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Shankar, Aravindh Swaminat"]
[Black "Verschoor, Marcel"]
[Result "1-0"]
[WhiteElo "1729"]
[BlackElo "1646"]
[PlyCount "71"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. Nf3 Be7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nbd7 7. O-O c6 8. e4
e5 9. d5 cxd5 10. cxd5 a6 11. a4 Nc5 12. Nd2 Nd3 13. Qe2 Nxc1 14. Rfxc1 Bd7 15.
Nc4 b5 16. axb5 axb5 17. Rxa8 Qxa8 18. Nb6 Qb7 19. Nxd7 Qxd7 20. Nxb5 Rc8 21.
Rxc8+ Qxc8 22. Na7 Qc1+ 23. Bf1 Qc5 24. Nc6 Bf8 25. b4 Qb6 26. Bg2 g6 27. Qa2
Qb7 28. Qa5 Qd7 29. h3 Bh6 30. b5 Nxe4 31. Bxe4 Qxh3 32. b6 Qg4 33. b7 Qxe4 34.
b8=Q+ Kg7 35. Qab4 Qe2 36. Q8xd6 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Van der Ven, Joao"]
[Black "Van de Poel, Jona"]
[Result "0-1"]
[WhiteElo "1649"]
[BlackElo "1717"]
[PlyCount "76"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 Ncxe5 7. Nbd2 d6 8.
O-O Be6 9. Qc2 Qe7 10. a3 a5 11. b3 O-O 12. Bb2 Bd7 13. Nd4 Rfe8 14. h3 Nf6 15.
Rfd1 Ng6 16. Bf3 c6 17. Nf5 Bxf5 18. Qxf5 Qe6 19. Qc2 Nh4 20. Qc3 Nxf3+ 21.
Nxf3 Qf5 22. b4 Bb6 23. Rxd6 Bc7 24. Rd3 Qg6 25. Rad1 Ne4 26. Qc2 axb4 27. axb4
h6 28. Ra1 Rad8 29. Rxd8 Rxd8 30. Ra7 Ng5 31. Qe2 Nxf3+ 32. Kh1 Qd6 33. g3 Qd1+
34. Qxd1 Rxd1+ 35. Kg2 Ne1+ 36. Kh2 Rd2 37. Bd4 Rxf2+ 38. Kg1 Bxg3 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Vlieland, Theo"]
[Black "Vergeer, Michiel"]
[Result "0-1"]
[WhiteElo "1396"]
[BlackElo "1688"]
[PlyCount "90"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. Nxe5 Nxe4
8. d4 O-O 9. Re1 Nf6 10. Bg5 h6 11. Bh4 Be6 12. c3 c5 13. Ng6 fxg6 14. Rxe6 Qd7
15. Qb3 Kh7 16. Bxf6 Bxf6 17. d5 b6 18. Nd2 Rad8 19. c4 Rde8 20. Rae1 Rxe6 21.
Rxe6 Re8 22. Re3 Bd4 23. Rxe8 Qxe8 24. Qd1 Bxb2 25. g3 Bc3 26. Qc2 Qe1+ 27. Nf1
Bd4 28. Kg2 Qe5 29. Qd3 Qf5 30. Qxf5 gxf5 31. Kf3 Kg6 32. Ne3 Bxe3 33. Kxe3 Kf6
34. a4 Ke5 35. f4+ Kd6 36. Kf3 c6 37. dxc6 Kxc6 38. g4 g6 39. gxf5 gxf5 40. Ke3
b5 41. axb5+ axb5 42. Kd3 bxc4+ 43. Kxc4 Kd6 44. h4 h5 45. Kc3 Kd5 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Schenkelaars, Robin"]
[Black "Hoogeveen, Luuk"]
[Result "1-0"]
[WhiteElo "1750"]
[BlackElo "1643"]
[PlyCount "63"]
[EventDate "2023.??.??"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. h3 b5 6. a3 Nbd7 7. f4 Qc7 8. Nf3 Bg7
9. Qd2 O-O 10. g4 e5 11. dxe5 dxe5 12. f5 Rd8 13. O-O-O Bb7 14. Bd3 Nb6 15. Bh6
c5 16. Nxb5 Qb8 17. Bxg7 Kxg7 18. g5 Nh5 19. f6+ Kg8 20. Qe3 Na4 21. Bc4 Bc6
22. Rxd8+ Qxd8 23. Nxe5 Qb6 24. Nxc6 Qxc6 25. Bxf7+ Kxf7 26. Qb3+ Kf8 27. Qxa4
Re8 28. Nc3 Qd6 29. Kb1 Qb6 30. Qb5 Qd6 31. Rd1 Qe5 32. Rd5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Westveer, Paul"]
[Black "Koelmans, Jan Willem"]
[Result "0-1"]
[WhiteElo "1345"]
[BlackElo "1810"]
[PlyCount "62"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. a3
Ng4 9. f4 Nxe3 10. Qxe3 d6 11. Nxc6 bxc6 12. Qg3 Rb8 13. Rb1 g6 14. Bd3 Bg7 15.
O-O O-O 16. Nd1 d5 17. Kh1 c5 18. exd5 exd5 19. b3 c4 20. Be2 Bf5 21. Ne3 Be4
22. bxc4 d4 23. Ng4 Bxc2 24. Rbc1 Rb3 25. Rf3 d3 26. Bxd3 Bxd3 27. Rxd3 Rxd3
28. Qxd3 Qxf4 29. Qd1 h5 30. g3 Qe4+ 31. Kg1 hxg4 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Kohlbeck, Ton"]
[Black "Tavridis, Efstathios"]
[Result "1-0"]
[WhiteElo "1831"]
[BlackElo "1558"]
[PlyCount "69"]
[EventDate "2023.??.??"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 g6 5. Bc4 Nc6 6. Nf3 Bg7 7. O-O a6 8. a4
e6 9. Qe2 Qc7 10. Bg5 f6 11. Bh4 Nge7 12. Bg3 Qb6 13. Rfd1 O-O 14. Bd6 Re8 15.
b4 Nxb4 16. a5 Qc6 17. Bxb4 b5 18. axb6 Qxb6 19. Rab1 Qa7 20. Na4 Nc6 21. Bc5
Qc7 22. Nb6 Na5 23. Nxa8 Qxc5 24. Rdc1 Qa7 25. Nc7 Rd8 26. Bxa6 Nc6 27. Bxc8
Qxc7 28. Bb7 Bh6 29. Rc2 Rb8 30. Qa6 Qd6 31. Qe2 Na5 32. Rd1 Qf8 33. Ba6 d5 34.
exd5 exd5 35. Qe6+ 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Molenkamp, Jan Bertus"]
[Black "Moeri, Erick"]
[Result "1-0"]
[WhiteElo "1785"]
[BlackElo "1522"]
[PlyCount "90"]
[EventDate "2023.??.??"]

1. c4 d5 2. d4 e6 3. Nf3 Nf6 4. e3 c5 5. cxd5 Nxd5 6. Nc3 Nf6 7. Bd2 Bd7 8. Be2
Nc6 9. dxc5 Bxc5 10. O-O O-O 11. Rc1 a6 12. a3 Qe7 13. b4 Bd6 14. Qb3 Ne5 15.
Nxe5 Bxe5 16. Bf3 Rab8 17. h3 h6 18. Ne4 Rfd8 19. Nxf6+ gxf6 20. Bc3 Bb5 21.
Bxe5 fxe5 22. Rfd1 Rxd1+ 23. Rxd1 Qh4 24. Qc3 e4 25. Qe5 exf3 26. Qxb8+ Kg7 27.
Qe5+ Kh7 28. Rd4 Qe7 29. Qe4+ f5 30. Qxf3 Qc7 31. g4 Qc3 32. Qxb7+ Kg6 33.
gxf5+ Kf6 34. Qe4 Qe1+ 35. Kg2 Qf1+ 36. Kg3 Qg1+ 37. Qg2 Qxg2+ 38. Kxg2 Kxf5
39. Kg3 h5 40. h4 Ke5 41. f4+ Kf6 42. Rd8 Kf5 43. Rd4 Bc6 44. Rc4 Bb5 45. Rc5+
Kf6 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Den Hollander, Steven"]
[Black "Wagemans, Ed"]
[Result "1/2-1/2"]
[WhiteElo "1546"]
[BlackElo "1784"]
[PlyCount "76"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4
Be7 9. Qf3 O-O 10. O-O-O Nc6 11. g4 Nh7 12. Bxe7 Qxe7 13. h4 g6 14. g5 h5 15.
Bh3 Bd7 16. f5 Ne5 17. f6 Qd8 18. Qe2 Rc8 19. Nf3 Nc4 20. Nd2 Ne5 21. Nf3 Nc4
22. e5 Qb6 23. b3 Qb4 24. bxc4 Qxc3 25. Qd3 Qa1+ 26. Kd2 Qxa2 27. exd6 Qxc4 28.
Qxc4 Rxc4 29. Ne5 Rd4+ 30. Ke3 Rxd1 31. Rxd1 Rd8 32. c4 Nf8 33. c5 Rc8 34. Kd4
b6 35. cxb6 Rb8 36. Rb1 Bb5 37. Kc5 Rc8+ 38. Kd4 Rb8 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "De Witte, Job"]
[Black "Rozendaal, Henk"]
[Result "0-1"]
[WhiteElo "1507"]
[BlackElo "1738"]
[PlyCount "70"]
[EventDate "2023.??.??"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 a6 7. cxd5 Nxd5 8.
Bc4 Be6 9. Qe2 g6 10. Be3 Bg7 11. O-O O-O 12. a3 Na5 13. Ba2 Rc8 14. Rac1 Nxc3
15. bxc3 Bxa2 16. Qxa2 Nc4 17. Bg5 h6 18. Bh4 g5 19. Bg3 Qa5 20. Rfe1 e6 21. a4
Nb6 22. Qb3 Rc6 23. Ne5 Bxe5 24. Bxe5 Qxa4 25. Qb1 Rfc8 26. Re3 Qb5 27. Qc2 Nd5
28. Rh3 Rxc3 29. Rxh6 f5 30. Rh8+ Kf7 31. Rh7+ Kg6 32. Rg7+ Kh6 33. Qxc3 Rxc3
34. Rf1 Nf4 35. Bxf4 Kxg7 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Van Amsterdam, Jan"]
[Black "Van Veen, Kylian"]
[Result "0-1"]
[WhiteElo "1708"]
[BlackElo "1735"]
[PlyCount "38"]
[EventDate "2023.??.??"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Be7 6. Bc4 a6 7. O-O d6 8. Qe2
Nc6 9. Rd1 Qc7 10. Bf4 Ne5 11. Bb5+ axb5 12. Nxe5 dxe5 13. Nxb5 Qb8 14. Bxe5
Qxe5 15. Rac1 Kf8 16. Qc4 Nf6 17. Qxc8+ Rxc8 18. Rxc8+ Ne8 19. Nc7 Qxc7 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Brienen, Jacob"]
[Black "Van den Berg, Dick"]
[Result "1-0"]
[WhiteElo "1498"]
[BlackElo "1697"]
[PlyCount "99"]
[EventDate "2023.??.??"]

1. Nf3 d5 2. c4 c6 3. cxd5 cxd5 4. d4 Nf6 5. Bf4 Nc6 6. e3 e6 7. Nc3 Bd6 8. Ne5
O-O 9. g4 Bxe5 10. dxe5 Nd7 11. Bg3 Ndxe5 12. f4 Ng6 13. h4 d4 14. exd4 Qxd4
15. Qxd4 Nxd4 16. O-O-O Nc6 17. h5 Nge7 18. Bd3 e5 19. g5 Bg4 20. Rdf1 Bf5 21.
Bxf5 Nxf5 22. Be1 Rfe8 23. fxe5 Rxe5 24. Bf2 Rd8 25. Re1 b6 26. Rhf1 Rxe1+ 27.
Rxe1 Nb4 28. Kb1 Kf8 29. a3 Nd3 30. Re2 Nf4 31. Re5 Nd4 32. Bxd4 Rxd4 33. h6
gxh6 34. gxh6 f6 35. Rf5 Ke7 36. Rxf4 Rxf4 37. Nd5+ Ke6 38. Nxf4+ Ke5 39. Ng6+
Kf5 40. Nf8 Kg5 41. Nxh7+ Kg6 42. Nxf6 Kxf6 43. Kc2 Kg6 44. Kd3 Kxh6 45. Kd4
Kg6 46. Kd5 Kf5 47. Kc6 Ke4 48. Kb7 Kd4 49. Kxa7 b5 50. b4 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Teianu, Maxim"]
[Black "Brouwer, Tim"]
[Result "1-0"]
[WhiteElo "1488"]
[BlackElo "1631"]
[Annotator "van,Jan"]
[PlyCount "56"]
[EventDate "2023.??.??"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5 Ne4 5. Nc3 Nxg5 6. Nxg5 e5 7. Nf3 e4 8. Nd2
Bb4 9. e3 Qg5 10. Qc2 Bg4 11. h3 Bh5 12. g4 Bg6 13. O-O-O Nd7 14. cxd5 cxd5 15.
Bb5 Bxc3 16. Qxc3 Qd8 17. Qb3 a6 18. Bxd7+ Qxd7 19. Rhg1 O-O-O 20. Kb1 Kb8 21.
Qb4 f5 22. g5 f4 23. Nb3 f3 24. Nc5 Qb5 25. Qxb5 axb5 26. Ne6 Rd6 27. Nf4 b4
28. b3 Be8 {notatie onleesbaar.} 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "De Ruyter, Wim"]
[Black "Van der Kolk, Constantijn"]
[Result "0-1"]
[WhiteElo "1595"]
[PlyCount "46"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Be2 Be7 9. d3 h6 10. Nf3 Qc7 11. Bd2 Rb8 12. Bc3 Bd6 13. Nbd2 Nd5 14. O-O O-O
15. Ne4 Nxc3 16. bxc3 Be7 17. Qd2 f5 18. Ng3 c5 19. Rab1 Bb7 20. d4 Rbd8 21.
Rfd1 e4 22. Ne1 Bg5 23. f4 Bxf4 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Beentjes, Douwe"]
[Black "Schenkelaars, Vincent"]
[Result "1-0"]
[BlackElo "1750"]
[PlyCount "17"]
[EventDate "2023.??.??"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Bxb5 8. exf6
Bxf6 9. Nxb5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Erbilen, Inci"]
[Black "Eveleens, Ed"]
[Result "0-1"]
[WhiteElo "1338"]
[BlackElo "1697"]
[PlyCount "86"]
[EventDate "2023.??.??"]

1. e4 d5 2. exd5 Qxd5 3. d4 c6 4. Nf3 Bg4 5. Be2 e6 6. O-O Nf6 7. Nc3 Qd8 8.
Bg5 Be7 9. Re1 Nbd7 10. Bc4 Nb6 11. Bb3 Nfd5 12. Bd2 Nxc3 13. Bxc3 Nd5 14. Bd2
Qc7 15. c4 Nf6 16. Rc1 O-O 17. Bg5 Rfd8 18. Qd3 Bf5 19. Qe3 Ng4 20. Qd2 f6 21.
Bh4 c5 22. Bg3 Bd6 23. Bxd6 Qxd6 24. h3 Nh6 25. Nh4 Qxd4 26. Qxd4 Rxd4 27. Nxf5
Nxf5 28. Rxe6 Rd2 29. g4 Nd4 30. Re7 Ne2+ 31. Rxe2 Rxe2 32. Bc2 Rd8 33. Kf1
Rdd2 34. Bd1 Rxf2+ 35. Ke1 Rh2 36. Rb1 Rxb2 37. Rxb2 Rxb2 38. a4 Rh2 39. Bf3 b6
40. Bd5+ Kf8 41. Kf1 Rxh3 42. Ke2 Rc3 43. Kf2 Ke7 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Rudman, Lev"]
[Black "Hooshangi, Milan"]
[Result "1-0"]
[WhiteElo "1224"]
[BlackElo "1605"]
[PlyCount "83"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. Bg5 Be7 7. Nf3 O-O 8.
cxd5 Nxd5 9. Bxe7 Nxe7 10. g3 Nbc6 11. Bg2 Qc7 12. O-O Rd8 13. Qc2 b6 14. Nb5
Qb8 15. Ng5 g6 16. Bxc6 Nxc6 17. Qxc6 Bb7 18. Qc1 Qe5 19. Nc3 Rd7 20. Nf3 Qf6
21. Rd1 Rad8 22. Qg5 Qxg5 23. Nxg5 h6 24. Rxd7 Rxd7 25. Nge4 Kg7 26. g4 b5 27.
Nc5 Rc7 28. Nxb7 Rxb7 29. a3 a6 30. e3 Rc7 31. Rd1 f5 32. h3 Kf6 33. Rd6 Ra7
34. Kg2 Ke7 35. Rc6 Kf6 36. a4 bxa4 37. Nxa4 a5 38. b4 g5 39. bxa5 Rxa5 40. Nc3
Re5 41. Ne2 f4 42. exf4 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Varela, César"]
[Black "Van Vleuten, Ronald"]
[Result "0-1"]
[BlackElo "1590"]
[PlyCount "152"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Bb4 6. a3 Bxc3+ 7. bxc3 h6 8.
Bxf6 Qxf6 9. Qc2 d5 10. cxd5 exd5 11. e3 O-O 12. Be2 Nd7 13. O-O Rfe8 14. a4 a5
15. Bb5 c6 16. Be2 Ba6 17. Bxa6 Rxa6 18. c4 Raa8 19. Rab1 Qe6 20. c5 bxc5 21.
dxc5 Qe4 22. Rfc1 Qxc2 23. Rxc2 Rab8 24. Ra1 Rb4 25. Kf1 Ree4 26. Nd4 Nb8 27.
Raa2 Re7 28. Nf5 Reb7 29. Nd4 g6 30. Ke2 Kf8 31. f4 Ke7 32. g4 Kd7 33. h4 Na6
34. Kf3 Rb1 35. f5 Rb8 36. Ra3 Nb4 37. Rcc3 Re8 38. Nb3 Ra8 39. Nd4 Rf1+ 40.
Kg2 Rd1 41. Kf3 Rd2 42. h5 gxh5 43. gxh5 Rh2 44. e4 dxe4+ 45. Kg3 Rxh5 46. Re3
Rg8+ 47. Kf2 Rh2+ 48. Kf1 Rh1+ 49. Kf2 Rg4 50. Rg3 h5 51. Rxg4 hxg4 52. Re3
Rh2+ 53. Kg1 Ra2 54. Rxe4 Nc2 55. Nxc2 Rxc2 56. Rxg4 Rxc5 57. Rf4 Rc2 58. Rd4+
Ke7 59. Rh4 Kf6 60. Rh6+ Kg5 61. Rh7 f6 62. Kf1 Rc5 63. Ke2 Rxf5 64. Rc7 Rc5
65. Kd3 f5 66. Kd4 Rc1 67. Ra7 f4 68. Rxa5+ Kg4 69. Rc5 Rxc5 70. Kxc5 f3 71.
Kxc6 f2 72. a5 f1=Q 73. Kb6 Qf6+ 74. Kb7 Qe7+ 75. Ka6 Qd6+ 76. Kb7 Qd5+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Been, Klaas"]
[Black "Branco, Moritz"]
[Result "1/2-1/2"]
[WhiteElo "1543"]
[BlackElo "1429"]
[PlyCount "90"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. Nf3 g6 3. e3 d5 4. Bd3 Bg7 5. Nbd2 c5 6. c3 Nc6 7. O-O O-O 8. Re1
cxd4 9. exd4 Qc7 10. Nf1 Re8 11. Bg5 h6 12. Bh4 e5 13. Bg3 Nh5 14. Bxe5 Nxe5
15. Nxe5 Nf4 16. Bc2 Ne6 17. Bb3 Nf4 18. Qd2 g5 19. Ne3 Be6 20. g3 Nh3+ 21. Kh1
Rad8 22. Ng2 f6 23. Ng6 Qf7 24. Bc2 Bg4 25. f4 Bf3 26. Bf5 Be4 27. Bxh3 Qxg6
28. Rf1 g4 29. f5 Qh5 30. Bxg4 Qxg4 31. Rf4 Qh3 32. Raf1 Qh5 33. Kg1 Qf7 34.
Ne3 h5 35. Qe2 Bh6 36. g4 Bxf4 37. Rxf4 Qc7 38. Qf2 Re7 39. Qg3 Rg7 40. h3 hxg4
41. Nxg4 Qe7 42. Qh4 Rf8 43. Kh2 Qd6 44. Nh6+ Kh7 45. Ng4+ Kg8 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Ergincan, Çinar"]
[Black "Uittenbogaard, Rob"]
[Result "0-1"]
[BlackElo "1477"]
[PlyCount "134"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. Bb5 Bd7 5. d4 cxd4 6. cxd4 g6 7. Be3 Bg7 8. Nc3
Nf6 9. Bxc6 bxc6 10. O-O O-O 11. Re1 Re8 12. Qc2 Rc8 13. Rad1 Bg4 14. Qe2 Qa5
15. h3 Bxf3 16. Qxf3 Nd7 17. Rc1 f6 18. a3 e5 19. d5 c5 20. Nb1 Rb8 21. Nd2 Nb6
22. Nb3 Qa4 23. Bd2 Nc4 24. Bb4 Qa6 25. Qd3 cxb4 26. Rxc4 bxa3 27. Ra1 a2 28.
Qc2 Rec8 29. Rc6 Qb7 30. Na5 Rxc6 31. Nxc6 Bf8 32. Rxa2 Rc8 33. Rxa7 Qxa7 34.
Ne7+ Qxe7 35. Qxc8 Kg7 36. Qe6 Qxe6 37. dxe6 f5 38. g4 fxg4 39. hxg4 Kf6 40.
Kf1 Kxe6 41. Ke2 g5 42. b4 Kd7 43. Kd3 Kc6 44. Kc4 Kb6 45. Kd5 Kb5 46. Ke6 Kxb4
47. Kf5 h6 48. Kg6 Be7 49. Kxh6 Kc4 50. Kg6 Kd4 51. Kf5 d5 52. f3 dxe4 53. fxe4
Ke3 54. Kxe5 Kf3 55. Kf5 Kg3 56. e5 Kh4 57. e6 Bb4 58. Ke4 Kxg4 59. Ke3 Kg3 60.
Ke4 g4 61. Ke3 Kg2 62. Ke2 g3 63. e7 Bxe7 64. Ke1 Kg1 65. Ke2 g2 66. Kf3 Kf1
67. Ke4 g1=Q 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Engelen, Niels"]
[WhiteElo "1576"]
[Black "Noij, Fenno"]
[BlackElo "1372"]
[Result "1-1"]

1-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Cools, Frank"]
[Black "Bingen, Stanley"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1440"]
[BlackElo "1274"]
[Annotator "van,Jan"]
[PlyCount "77"]
[EventDate "2023.??.??"]

{[%evp 0,36,19,31,14,23,31,33,55,-17,-18,0,0,-26,2,2,6,5,30,30,42,43,68,-10,44,
-1,9,30,79,2,83,65,69,83,84,26,64,21,47]} 1. d4 Nf6 2. Bf4 d6 3. e3 c6 4. c4 g5
5. Bg3 h5 6. f3 h4 7. Bf2 Nbd7 8. Nc3 Qc7 9. Bd3 Nb6 10. e4 Bd7 11. Nge2 O-O-O
12. Qd2 Bh6 13. Be3 Rhg8 14. O-O-O e5 15. Kb1 Be6 16. d5 cxd5 17. cxd5 Bd7 18.
Rc1 Kb8 19. Na4 Qxc1+ 20. Rxc1 Bxa4 21. Qa5 Nfd7 22. b3 Nc5 23. Rxc5 dxc5 24.
bxa4 Nd7 25. Bxc5 b6 26. Bd6+ Ka8 27. Qb5 Nb8 28. Bxb8 Kxb8 29. Qc6 Rc8 30.
Qxh6 Rg6 31. Qh5 Rc5 32. Qh8+ Kb7 33. Qxe5 Ra5 34. Qe7+ Kc8 35. Bb5 a6 36. Qd7+
Kb8 37. Bc6 Rxc6 38. dxc6 Rb5+ 39. axb5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.06.05"]
[Round "3"]
[White "Pasteels, Luc"]
[Black "Scheele, Peter"]
[Result "1-0"]
[WhiteElo "1401"]
[BlackElo "1171"]
[PlyCount "42"]
[EventDate "2023.??.??"]

1. e4 c5 2. c3 Nc6 3. Nf3 d6 4. d4 Nf6 5. d5 Ne5 6. Nxe5 dxe5 7. Nd2 a6 8. a4
e6 9. dxe6 Bxe6 10. Qc2 Be7 11. Bc4 Qb6 12. O-O O-O 13. Bxe6 Qxe6 14. b3 Qc6
15. Ba3 a5 16. Rfe1 Rfd8 17. Nc4 Nd7 18. Ne3 g6 19. Nd5 Bg5 20. Bc1 Bxc1 21.
Ne7+ Kg7 1-0



