[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Pijpers, Arthur"]
[Black "Van der Bent, Gideon"]
[Result "1-0"]
[WhiteElo "2459"]
[BlackElo "1961"]
[PlyCount "63"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. Qe2 d6 8. f4
Nbd7 9. g4 g6 10. g5 Nh5 11. Be3 Nc5 12. O-O-O Bg7 13. f5 Bxd4 14. Bxd4 Nf4 15.
Qf3 Ncxd3+ 16. Rxd3 e5 17. Qxf4 exf4 18. Bxh8 gxf5 19. Nd5 Qc6 20. Rc3 Qa4 21.
Nc7+ Kf8 22. Nxa8 Be6 23. exf5 Bxf5 24. Rf1 Qe4 25. b3 b5 26. Nc7 b4 27. Rc4
Qe3+ 28. Kb2 f3 29. Bd4 Qe2 30. Rf2 Qd1 31. Bf6 d5 32. Rxb4 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Serdijn, Adinda"]
[Black "Polak, Alexander"]
[Result "0-1"]
[WhiteElo "1957"]
[BlackElo "2194"]
[PlyCount "162"]
[EventDate "2023.??.??"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. Qxd3 Qa5+ 7. c3 Qa6 8.
Qxa6 Nxa6 9. O-O c5 10. b3 Ne7 11. Ba3 Nc6 12. Rd1 cxd4 13. cxd4 Nab4 14. Bxb4
Bxb4 15. a3 Ba5 16. b4 Bc7 17. Nc3 f6 18. exf6 gxf6 19. Na4 b6 20. Rac1 Kd7 21.
g3 h5 22. Rc2 Bd6 23. Nc3 Rag8 24. Kf1 Ne7 25. Nh4 f5 26. Ne2 b5 27. Rdc1 a6
28. Ng2 Nc8 29. Rc6 a5 30. bxa5 Na7 31. Ra6 Ra8 32. Rc3 Rhb8 33. Ngf4 Nc8 34.
Rcc6 Rxa6 35. Rxa6 Kc7 36. Nxe6+ Kb7 37. Rxd6 Nxd6 38. Nc5+ Kc8 39. Nf4 Nb7 40.
Nxd5 Nxa5 41. Ne7+ Kd8 42. Nxf5 Nc4 43. Ke2 Ra8 44. d5 Rxa3 45. Nd4 Ra2+ 46.
Kf3 Nd6 47. h3 Ke7 48. g4 Kf6 49. gxh5 Ra3+ 50. Ndb3 Ke5 51. h6 Nf7 52. h7 Ng5+
53. Kg4 Nxh7 54. f4+ Kxd5 55. Kf5 Nf8 56. h4 Kc4 57. h5 Ra7 58. h6 b4 59. Kf6
Nh7+ 60. Ke6 Ra3 61. Kf7 Ra7+ 62. Kg6 Rc7 63. f5 Nf8+ 64. Kf6 Rh7 65. Kg5 Kd5
66. Nd3 Kc4 67. Ndc5 Rc7 68. Kf6 Kd5 69. Nd3 Rb7 70. Ndc5 Nh7+ 71. Kg6 Nf8+ 72.
Kf6 Rh7 73. Kg5 Kc4 74. Kh5 Rc7 75. Kg5 Rxc5 76. Nxc5 Kxc5 77. Kf6 Kd6 78. Kg7
Ke7 79. f6+ Ke8 80. h7 Nxh7 81. Kxh7 Kf7 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Passenier, Peter"]
[Black "Zeven, Frank"]
[Result "1-0"]
[WhiteElo "2170"]
[BlackElo "1929"]
[PlyCount "137"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 c4 7. Nbd2 Na5 8. Rb1 Bd7
9. h4 Nb3 10. Nxb3 Ba4 11. Nfd2 Rc8 12. h5 Ne7 13. h6 gxh6 14. Be2 Nc6 15. Bh5
Bxb3 16. Nxb3 Qxb3 17. Qf3 Nd8 18. O-O Bg7 19. Qg3 Kf8 20. Bd1 Qb6 21. Qh4 Nc6
22. Bxh6 Bxh6 23. Qxh6+ Kg8 24. Bh5 Qd8 25. Rbe1 Ne7 26. Re3 Qf8 27. Qg5+ Ng6
28. f4 Qe7 29. Qg4 Rf8 30. f5 exf5 31. Qxf5 Kg7 32. Rg3 Qe6 33. Qc2 f5 34. Rg5
f4 35. Bg4 Qe7 36. Rf5 Rxf5 37. Qxf5 Rf8 38. Qd7 Qxd7 39. Bxd7 Kf7 40. Bg4 Ke7
41. Kh2 h5 42. Bf3 Ke6 43. Rh1 Rh8 44. Kg1 h4 45. Kf2 Ne7 46. Bg4+ Kf7 47. Kf3
Kg6 48. Kxf4 Rf8+ 49. Ke3 Kg5 50. Be6 Nf5+ 51. Bxf5 Rxf5 52. Re1 Rf4 53. Re2
Re4+ 54. Kf2 Rf4+ 55. Ke1 Kg4 56. e6 Rf8 57. e7 Re8 58. Kf2 b6 59. Re5 Kf4 60.
Re3 Kg4 61. Ke2 Kf4 62. Re5 Kg3 63. Kf1 Kf4 64. Kf2 Kg4 65. Ke3 Kg3 66. Rg5+
Kh2 67. Rg7 h3 68. gxh3 Kxh3 69. Kf4 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Van der Scheer, Henk"]
[Black "Andringa, Arjo"]
[Result "0-1"]
[WhiteElo "1908"]
[BlackElo "2014"]
[PlyCount "100"]
[EventDate "2023.??.??"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Be2 h6 5. O-O e6 6. Nbd2 c5 7. c4 Nc6 8. a3
dxc4 9. Nxc4 cxd4 10. exd4 Be7 11. Nce5 O-O 12. Nxc6 bxc6 13. Ne5 Qb6 14. Qa4
c5 15. Bf3 Rac8 16. Nc6 Bd6 17. dxc5 Bxc5 18. b4 Nd5 19. bxc5 Qxc6 20. Qxc6
Rxc6 21. Bf4 Rd8 22. Bd6 Bd3 23. Rfd1 Bc4 24. g3 Ra6 25. Rdb1 Nc3 26. Rc1 Ne2+
27. Bxe2 Bxe2 28. Rcb1 Bf3 29. Rb3 Bd5 30. Rb4 Rc8 31. Kf1 g5 32. Ke2 Kg7 33.
Ke3 Kf6 34. Kd4 h5 35. a4 g4 36. a5 Rg8 37. Rb8 Rg5 38. Bf8 Bc6 39. Rc8 Rd5+
40. Kc3 Rf5 41. Ra2 Rf3+ 42. Kb4 Rd3 43. Rc2 Rd4+ 44. Rc4 Rd2 45. Rf4+ Kg6 46.
Bd6 Rb2+ 47. Kc3 Ra2 48. Be5 f5 49. Rg8+ Kf7 50. Rd4 Kxg8 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Van Briemen, Willem"]
[Black "Van der Knaap, Jan"]
[Result "0-1"]
[WhiteElo "1992"]
[BlackElo "1890"]
[PlyCount "130"]
[EventDate "2023.??.??"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. e4 Bg4 5. Be2 Bxf3 6. Bxf3 Nc6 7. d5 Nd4 8. Nc3
c5 9. Be3 Qa5 10. O-O Nxf3+ 11. gxf3 Nf6 12. Qc2 O-O 13. a3 Nd7 14. f4 Bxc3 15.
bxc3 Qa6 16. Qb3 Nb6 17. Qb5 Qa4 18. Qxa4 Nxa4 19. Rfb1 Rab8 20. Rb3 Rfd8 21.
Kf1 Nb6 22. Ke2 Nxc4 23. a4 Nxe3 24. fxe3 b6 25. Kd3 Rd7 26. c4 a6 27. Rab1
Rdb7 28. e5 Kg7 29. Ke4 f5+ 30. Kf3 Kf7 31. e6+ Kf6 32. h4 h6 33. R3b2 g5 34.
hxg5+ hxg5 35. fxg5+ Kxg5 36. Rg2+ Kf6 37. Rgb2 Ke5 38. Rb3 b5 39. axb5 axb5
40. R3b2 b4 41. Rh2 Rg8 42. Rh5 Ra7 43. Rb2 Ra1 44. Rh7 Kf6 45. Rf7+ Ke5 46.
Rxe7 Rag1 47. Rf2 Rc1 48. Rf7 Rxc4 49. e7 Re8 50. Rh2 Kxd5 51. Rh6 b3 52. Rxf5+
Kc6 53. Rff6 Rb4 54. Rxd6+ Kb5 55. Rb6+ Kc4 56. Rh4+ Kc3 57. Rhxb4 cxb4 58.
Rc6+ Kd2 59. Rb6 Rxe7 60. Rxb4 Rxe3+ 61. Kf2 Rc3 62. Rb8 Kc2 63. Re8 b2 64.
Re2+ Kb3 65. Re8 b1=Q 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Van Efferen, Yannick"]
[Black "Timmermans, Raymond"]
[Result "1/2-1/2"]
[WhiteElo "1860"]
[BlackElo "1974"]
[PlyCount "88"]
[EventDate "2023.??.??"]

1. e4 e6 2. Nc3 d5 3. f4 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 Bd6 7. d4 c5 8.
Bd3 cxd4 9. O-O Qb6 10. Nd2 Qc7 11. Nde4 Nxe4 12. Nxe4 Nc5 13. Qg4 Bd7 14. Qxg7
O-O-O 15. Nxd6+ Qxd6 16. Qe5 Bc6 17. Bd2 f6 18. Qxd6 Rxd6 19. Bb4 b6 20. Rae1
Bd5 21. Rf2 Nxd3 22. cxd3 Rc6 23. Be7 f5 24. a3 Kd7 25. Bf6 Rg8 26. Bxd4 h5 27.
h3 Rcc8 28. Ree2 Rg3 29. Rd2 Bb7 30. Kh2 Rgg8 31. Rc2 Ba6 32. Rxc8 Rxc8 33. Be5
Bb7 34. b4 Bd5 35. Bd4 Kc6 36. Rc2+ Kd7 37. Rxc8 Kxc8 38. Kg3 Kd7 39. Kh4 Bxg2
40. Kxh5 Bxh3 41. a4 Bf1 42. a5 bxa5 43. bxa5 a6 44. Kg6 Bxd3 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Kohlbeck, Ton"]
[Black "Hooshangi, Milan"]
[Result "1-0"]
[WhiteElo "1831"]
[BlackElo "1605"]
[PlyCount "41"]
[EventDate "2023.??.??"]

1. e4 e5 2. d4 exd4 3. c3 Nc6 4. Bc4 Nf6 5. Nf3 d5 6. exd5 Nxd5 7. O-O Be7 8.
Nxd4 Nb6 9. Bb5 Bd7 10. Nxc6 Bxc6 11. Bxc6+ bxc6 12. Qf3 Qd5 13. Qg3 O-O 14.
Bf4 Bd6 15. Nd2 Rad8 16. Rfd1 Bxf4 17. Qxf4 Rfe8 18. Qf3 h6 19. Ne4 Qxe4 20.
Rxd8 Qe1+ 21. Rxe1 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "De Ruyter, Wim"]
[Black "Teianu, Sabin"]
[Result "1-0"]
[WhiteElo "1595"]
[BlackElo "1831"]
[PlyCount "81"]
[EventDate "2023.??.??"]

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. Nf3 Bd6 11. Bg5 O-O 12. O-O Qc7 13. Rc1 Bd7 14. Qc2 h6 15.
Bh4 Nh5 16. Bg3 Nxg3 17. hxg3 Qd8 18. Bh7+ Kh8 19. Nh4 Ne7 20. Bd3 Rf6 21. f4
Nf5 22. Nxf5 exf5 23. Nc3 Qb6 24. Qf2 Bc6 25. Rfe1 Kg8 26. Kh2 a5 27. a4 Qb4
28. Bb5 Rb8 29. Re2 Rc8 30. Nxd5 Bxd5 31. Rxc8+ Kh7 32. Ree8 Rf8 33. Qc2 Rxe8
34. Rxe8 Be4 35. Qc8 Qd2 36. Rh8+ Kg6 37. Qe8+ Kf6 38. Qd8+ Be7 39. Rf8+ Kg6
40. Qe8+ Kh7 41. Rh8# 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Molenkamp, Jan Bertus"]
[Black "Van Vleuten, Ronald"]
[Result "1-0"]
[WhiteElo "1785"]
[BlackElo "1590"]
[PlyCount "135"]
[EventDate "2023.??.??"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 Nf6 5. Nf3 a6 6. a4 e6 7. d4 Be7 8. O-O
O-O 9. h3 Nc6 10. Bg5 Nb4 11. Qd2 b6 12. Rad1 Bb7 13. Ne5 Nbd5 14. Rfe1 Nxc3
15. bxc3 c6 16. Bd3 Nd7 17. Nf3 c5 18. Bxe7 Qxe7 19. Qe3 Bd5 20. Nd2 Rfc8 21.
c4 cxd4 22. Qxd4 Bc6 23. Ne4 Bxa4 24. c5 Nxc5 25. Nxc5 Qxc5 26. Qxa4 b5 27. Qh4
g6 28. Qf6 a5 29. Re5 Qd4 30. Rxe6 Qxf6 31. Rxf6 Kg7 32. Rb6 b4 33. Rb7 Rab8
34. Rxb8 Rxb8 35. Ra1 Ra8 36. Bb5 Ra7 37. Ba4 Kf6 38. Rd1 Ke6 39. Kf1 g5 40. f3
f5 41. Rd3 f4 42. Ke2 h5 43. Kd2 Rc7 44. Bb3+ Kf6 45. Rd6+ Kg7 46. Rd5 Kf6 47.
Rxa5 Rd7+ 48. Rd5 Rb7 49. Kd3 Ra7 50. Kc4 Ra1 51. Rd2 g4 52. hxg4 hxg4 53. Kxb4
Kg5 54. fxg4 Kxg4 55. Bd5 Rb1+ 56. Kc5 Rb2 57. Be4 Ra2 58. Rd6 Kg3 59. c4 Kf2
60. Rd3 Re2 61. Bf3 Rc2 62. Kd4 Rc1 63. c5 Kg3 64. Kd5 Kh4 65. c6 Kg5 66. Kd6
Kf6 67. c7 Rc2 68. Kd7 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Pasteels, Luc"]
[Black "Wagemans, Ed"]
[Result "0-1"]
[WhiteElo "1401"]
[BlackElo "1784"]
[PlyCount "74"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. b3 Nc6 4. Bb2 e5 5. Nc3 Nf6 6. d3 Be7 7. a3 a6 8. Nd5 O-O
9. Be2 b5 10. O-O Rb8 11. Qd2 Be6 12. Ne3 Nd4 13. b4 Qc7 14. Ng5 Bd7 15. Bd1 h6
16. Nf3 Rfc8 17. c3 Nxf3+ 18. Bxf3 Bc6 19. Rac1 c4 20. Nf5 Kh7 21. g4 Ng8 22.
d4 Bg5 23. Qc2 Bxc1 24. Bxc1 g6 25. d5 gxf5 26. dxc6 f4 27. Rd1 Qxc6 28. Bxf4
f5 29. exf5 Qxf3 30. Rxd6 Qxf4 31. f6+ e4 32. Rd7+ Kh8 33. h3 Nxf6 34. Re7 Rd8
35. Kg2 Rd2 36. Qc1 Qxf2+ 37. Kh1 Qg2# 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Zwinkels, Wim"]
[Black "Engelen, Niels"]
[Result "1-0"]
[WhiteElo "1776"]
[BlackElo "1576"]
[PlyCount "95"]
[EventDate "2023.??.??"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Ng3 Nf6 5. Nf3 Bd6 6. c3 c5 7. Bb5+ Nc6 8. b4
dxc3 9. bxc5 cxd2+ 10. Qxd2 Bc7 11. Qxd8+ Kxd8 12. O-O Bg4 13. Bb2 Bxf3 14.
gxf3 Ne7 15. Rfd1+ Kc8 16. Rac1 Rd8 17. Rxd8+ Kxd8 18. Rd1+ Kc8 19. Bc4 Nd7 20.
Ba3 Nc6 21. Bxf7 Nd4 22. Rd3 a5 23. Nf5 Nxf5 24. exf5 Nf6 25. Bc4 Kb8 26. c6
bxc6 27. Bf8 e4 28. fxe4 Nxe4 29. Bxg7 Kb7 30. f6 Nd6 31. f7 Nxc4 32. f8=Q Rxf8
33. Bxf8 Ne5 34. Rh3 Ng6 35. Bc5 h5 36. Rxh5 Nf4 37. Rh7 Ne6 38. Bd6 Kb6 39.
Bxc7+ Nxc7 40. h4 c5 41. Kf1 Nd5 42. Ke1 Kb5 43. h5 c4 44. h6 c3 45. Kd1 Kc4
46. Rg7 Kd3 47. Rd7 Kc4 48. Rxd5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Den Hollander, Steven"]
[Black "Schenkelaars, Robin"]
[Result "0-1"]
[WhiteElo "1546"]
[BlackElo "1750"]
[PlyCount "78"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Nh6 7. Bxh6 Qxb2 8. Bxg7
Bxg7 9. dxc5 Nxe5 10. Nd4 Nc4 11. Bxc4 dxc4 12. O-O O-O 13. Qd2 Qxd2 14. Nxd2
e5 15. Nb5 Be6 16. Nc7 Rac8 17. Nxe6 fxe6 18. Ne4 Rfd8 19. Rab1 Rd7 20. Rfd1
Rcc7 21. Rxd7 Rxd7 22. Nd6 b6 23. cxb6 axb6 24. Rxb6 Bf8 25. Kf1 Rxd6 26. Rxd6
Bxd6 27. Ke2 Kf7 28. Ke3 Ba3 29. g3 Bb2 30. Kd2 Kf6 31. a4 Kf5 32. a5 Ba3 33.
a6 Bc5 34. f3 e4 35. fxe4+ Kxe4 36. Ke2 Ba7 37. h4 h5 38. Kf1 Kf3 39. g4 Kxg4
0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Schenkelaars, Vincent"]
[Black "Moeri, Erick"]
[Result "0-1"]
[WhiteElo "1750"]
[BlackElo "1522"]
[PlyCount "66"]
[EventDate "2023.??.??"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c5 5. e3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4
Be7 9. Bb2 O-O 10. Be2 dxc4 11. Bxc4 Qc7 12. Qe2 b5 13. Bd3 Bb7 14. Ne4 Nxe4
15. Bxe4 f5 16. Bc2 Bf6 17. Bb3 Qe7 18. O-O Kh8 19. Rac1 Nd8 20. Nd4 Bg5 21.
Rc5 f4 22. e4 Bf6 23. e5 Bh4 24. f3 Rc8 25. Rfc1 Qd7 26. Qc2 Rxc5 27. Qxc5 Rf7
28. Rd1 Be7 29. Qc2 Bd5 30. Bxd5 Qxd5 31. Ne2 Qb7 32. Qd2 Kg8 33. Qd7 Bc5+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "de Witte, Job"]
[Black "Beetstra, Jaap"]
[Result "0-1"]
[WhiteElo "1507"]
[BlackElo "1738"]
[PlyCount "96"]
[EventDate "2023.??.??"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2 Bxe2 5. Nxe2 Qxd5 6. O-O e6 7. Nbc3 Qf5
8. Ng3 Qa5 9. Re1 c6 10. Nce4 Nbd7 11. Bf4 Nxe4 12. Nxe4 Nf6 13. c4 Nxe4 14.
Rxe4 Rd8 15. a3 Qf5 16. Qf3 g5 17. Be5 Qxf3 18. gxf3 Rg8 19. Rd1 Be7 20. b4 a6
21. Kf1 h5 22. f4 g4 23. f5 exf5 24. Re2 Kf8 25. Bc7 Rd7 26. Bb6 f4 27. d5 Rg6
28. Bc5 cxd5 29. Rxd5 Rc7 30. Rd8+ Kg7 31. Rxe7 Rxe7 32. Bxe7 Re6 33. Bf8+ Kh7
34. Rd7 Kg8 35. Bd6 Re4 36. c5 f3 37. Re7 Rc4 38. Re1 f5 39. Kg1 f4 40. Ra1 h4
41. Be7 h3 42. Bd6 Kf7 43. Re1 Kf6 44. Kf1 Kf5 45. Rd1 Rc2 46. Ra1 g3 47. fxg3
Rxh2 48. Bxf4 Rh1+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Rozendaal, Henk"]
[Black "Brienen, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "1738"]
[BlackElo "1498"]
[PlyCount "121"]
[EventDate "2023.??.??"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c5 5. e4 d6 6. Nge2 Nc6 7. O-O h5 8. d3 h4
9. Bg5 hxg3 10. fxg3 Bh3 11. Nf4 Bxg2 12. Kxg2 Qd7 13. Qd2 O-O-O 14. Bxf6 Bxf6
15. Nfd5 Qh3+ 16. Kh1 Qxg3 17. Nxf6 exf6 18. Rxf6 Ne5 19. Rg1 Qh4 20. Qf4 Qxf4
21. Rxf4 Rh3 22. Rg3 Rdh8 23. Rxh3 Rxh3 24. d4 cxd4 25. Nb5 Kd7 26. Nxd4 Rd3
27. Nb3 Rd1+ 28. Kg2 Rb1 29. Rf2 Nxc4 30. Rxf7+ Ke6 31. Rxb7 Rxb2+ 32. Kg3 Rxa2
33. Nd4+ Ke5 34. Nc6+ Kxe4 35. Re7+ Ne5 36. Nxa7 Ra3+ 37. Kg2 Kf4 38. Nb5 Ra2+
39. Kf1 Rxh2 40. Nxd6 g5 41. Re8 Ra2 42. Rf8+ Kg4 43. Ne4 Nd3 44. Rg8 Ra5 45.
Nf2+ Nxf2 46. Kxf2 Ra2+ 47. Kg1 Kf4 48. Rb8 g4 49. Rb4+ Kg3 50. Rb3+ Kh4 51.
Rb1 Kh3 52. Rb3+ g3 53. Rb1 Rc2 54. Rd1 Rc3 55. Rb1 Rf3 56. Rb8 Kg4 57. Rg8+
Kf4 58. Rf8+ Ke3 59. Rxf3+ Kxf3 60. Kf1 g2+ 61. Kg1 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Teianu, Maxim"]
[Black "Van Veen, Kylian"]
[Result "1-0"]
[WhiteElo "1488"]
[BlackElo "1735"]
[PlyCount "111"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 O-O 7. Bg2 c6 8.
O-O Nbd7 9. Qc2 h6 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Nf6 13. Qc2 Qc7 14. Rac1
Rd8 15. Rfd1 Bd7 16. Ne5 Be8 17. Qe2 a5 18. d5 c5 19. dxe6 fxe6 20. Nd3 Bf7 21.
Ne5 Be8 22. Bh3 Ra6 23. Rxd8 Qxd8 24. Nf3 Kh8 25. Rd1 Qe7 26. Qd3 Qd7 27. Qc2
Qc6 28. Bg2 Qc7 29. Nh4 Ra8 30. Ng6+ Kg8 31. Nf4 Bf7 32. Qd3 Qb6 33. Rd2 e5 34.
Nd5 Nxd5 35. Bxd5 Rf8 36. Re2 a4 37. Qe4 Qd6 38. Qxe5 Qxe5 39. Rxe5 Bxd5 40.
Rxd5 b6 41. Rd6 Rf6 42. Rxf6 gxf6 43. Kg2 Kf7 44. Kf3 Ke6 45. Kf4 Kd6 46. Kf5
Kc6 47. Kxf6 b5 48. cxb5+ Kxb5 49. Ke5 Kc4 50. f4 Kd3 51. f5 c4 52. f6 a3 53.
f7 axb2 54. f8=Q Kc2 55. Qf5+ Kc1 56. Kd4 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Shankar, Aravindh Swaminat"]
[Black "Uittenbogaard, Rob"]
[Result "1-0"]
[WhiteElo "1729"]
[BlackElo "1477"]
[PlyCount "53"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 e5 8.
Qe3 h6 9. Nc3 Nf6 10. O-O Ng4 11. Qe2 Nf6 12. Rd1 Qc7 13. Nh4 a6 14. Nf5 g6 15.
Ng3 Bd7 16. Be3 Rc8 17. Rac1 Be6 18. b3 Qb8 19. h3 Nd7 20. f4 f5 21. exf5 gxf5
22. Nxf5 Rg8 23. Nxh6 Rg7 24. Qh5+ Bf7 25. Nxf7 Rxf7 26. fxe5 dxe5 27. Rxd7 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Cools, Frank"]
[Black "Van de Poel, Jona"]
[Result "0-1"]
[WhiteElo "1440"]
[BlackElo "1717"]
[Annotator "van,Jan"]
[PlyCount "55"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. Bf4 g6 3. e3 d6 4. Be2 Bg7 5. h3 O-O 6. Nf3 Nc6 7. Nbd2 Re8 8. Bb5
Bd7 9. O-O a6 10. Ba4 b5 11. Bb3 Na5 12. c3 Nxb3 13. axb3 Nh5 14. Bh2 e5 15.
dxe5 dxe5 16. Qe2 e4 17. Ne1 c5 18. Qd1 Ra7 19. Qc2 Bc6 20. g4 Nf6 21. Ng2 h5
22. g5 Nd7 23. h4 Ne5 24. Rfd1 Qc8 25. Nf1 Nf3+ 26. Kh1 Qh3 27. Nf4 Qxh4 28.
Rd6 {rest niet leesbaar.} 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Van Amsterdam, Jan"]
[Black "Vlieland, Theo"]
[Result "0-1"]
[WhiteElo "1708"]
[BlackElo "1396"]
[PlyCount "82"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nc3 Nf6 3. f4 d6 4. Nf3 Nc6 5. Bb5 exf4 6. d4 a6 7. Bxc6+ bxc6 8.
Bxf4 g6 9. O-O Bg7 10. Bg5 h6 11. Bh4 g5 12. Nxg5 hxg5 13. Bxg5 Qe7 14. Qf3 Ng4
15. Bxe7 Bxd4+ 16. Rf2 Bxf2+ 17. Qxf2 Nxf2 18. Bf6 Rh6 19. e5 Ng4 20. Ne4 Be6
21. h3 d5 22. hxg4 dxe4 23. g5 Rg6 24. b3 Kd7 25. Rd1+ Kc8 26. c4 Kb7 27. Re1
Bf5 28. Rf1 Rxf6 29. gxf6 Bg6 30. Kf2 Re8 31. Ke3 Rxe5 32. Rd1 Re6 33. Rf1 Rd6
34. Rf2 Kb6 35. b4 c5 36. Rb2 cxb4 37. Rxb4+ Kc5 38. Ra4 Rd3+ 39. Ke2 Bh5+ 40.
Ke1 Kd4 41. Kf2 e3+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Noij, Fenno"]
[Black "De Leede, Tjeerd"]
[Result "0-1"]
[WhiteElo "1372"]
[BlackElo "1704"]
[PlyCount "68"]
[EventDate "2023.??.??"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. Nc3 Bb4 5. a3 Bxc3+ 6. bxc3 O-O 7. Bg5 d6 8. e3
Nc6 9. d5 Na5 10. Bd3 e5 11. Nd2 b6 12. e4 f4 13. g3 h6 14. Bxf6 Qxf6 15. Qf3
Qg5 16. Be2 Ba6 17. O-O-O Rab8 18. a4 fxg3 19. Qxg3 Nb3+ 20. Kc2 Qxg3 21. fxg3
Nc5 22. Ra1 Rf2 23. Bd3 Rbf8 24. Rhf1 Rxh2 25. Rxf8+ Kxf8 26. a5 bxa5 27. Rxa5
Rxd2+ 28. Kxd2 Nb3+ 29. Kc2 Nxa5 30. c5 Bxd3+ 31. Kxd3 dxc5 32. c4 Ke7 33. Kc3
h5 34. Kd3 g5 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Eveleens, Ed"]
[Black "Westveer, Paul"]
[Result "0-1"]
[WhiteElo "1697"]
[BlackElo "1345"]
[PlyCount "72"]
[EventDate "2023.??.??"]

1. e4 d6 2. f4 e5 3. d3 Nf6 4. Be2 Nc6 5. Nf3 Bd7 6. c3 Qe7 7. a4 d5 8. fxe5
Nxe5 9. Nxe5 Qxe5 10. exd5 Nxd5 11. O-O Bd6 12. g3 O-O 13. d4 Qe7 14. Bf3 Bc6
15. Re1 Qd7 16. Bg4 f5 17. Bh3 Qf7 18. Nd2 Qg6 19. Nf3 Qh5 20. Bg2 f4 21. Ne5
Qxd1 22. Rxd1 fxg3 23. hxg3 Rae8 24. Nxc6 bxc6 25. c4 Ne7 26. Bg5 Bxg3 27. Rf1
Nf5 28. Bxc6 Re2 29. Bd5+ Kh8 30. Rxf5 Rxf5 31. Bd8 Bh2+ 32. Kh1 Rh5 33. Bg2
Be5+ 34. Kg1 Bxd4+ 35. Kf1 Rf2+ 36. Ke1 Rxg2 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Erbilen, Inci"]
[Black "Van den Berg, Dick"]
[Result "0-1"]
[WhiteElo "1338"]
[BlackElo "1697"]
[Annotator "van,Jan"]
[PlyCount "62"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 Nf6 5. Nf3 Bg4 6. Nc3 Nc6 7. Be2 dxc4 8.
Bxc4 Bxf3 9. Qxf3 Nxd4 10. Qd3 Qe7+ 11. Be3 O-O-O 12. Qd1 Nf5 13. Qe2 Nxe3 14.
fxe3 Re8 15. O-O Qxe3+ 16. Qxe3 Rxe3 17. Bxf7 Bc5 18. Kh1 Rd8 19. Rad1 Red3 20.
Be6+ Kb8 21. Rc1 Rd2 22. b3 c6 23. g4 Re8 24. Bf5 g6 25. Bxg6 hxg6 26. Rxf6 Rh8
27. Ne2 Rxe2 28. Rxc5 Rhxh2+ 29. Kg1 Reg2+ 30. Kf1 Rxa2 31. Kg1 Rag2+ {rest
niet te ontcijferen.} 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Van der Ven, Joao"]
[Black "Bingen, Stanley"]
[Result "1-0"]
[WhiteElo "1649"]
[BlackElo "1274"]
[PlyCount "121"]
[EventDate "2023.??.??"]

1. d4 b6 2. e4 Bb7 3. Bd3 Nf6 4. Qe2 e6 5. Nf3 Be7 6. c4 c5 7. d5 Na6 8. e5 Ng8
9. Nc3 Nb4 10. d6 Nxd3+ 11. Qxd3 Bf8 12. Nb5 f6 13. Nh4 f5 14. Nc7+ Kf7 15.
Nxf5 Rc8 16. Nb5 g6 17. Ne3 a6 18. Nc3 Nh6 19. O-O Bg7 20. f4 Rf8 21. Ne4 Kg8
22. Bd2 Nf5 23. Ng4 Kh8 24. Rae1 a5 25. a4 Bc6 26. b3 Rf7 27. Bc3 Qh4 28. Ngf6
Rcf8 29. Re2 Bh6 30. g3 Qh3 31. Rg2 Bg7 32. Re2 Bxf6 33. Nxf6 Qh6 34. Ne4 Rb8
35. Ng5 Rff8 36. Rd2 Ba8 37. Rfd1 Rfc8 38. Ne4 Rg8 39. Ng5 Rbf8 40. Qe2 Qg7 41.
Rd3 h6 42. Ne4 g5 43. fxg5 hxg5 44. Nf6 Qh6 45. Nxg8 Rxg8 46. Rf1 g4 47. Rf4
Bf3 48. Qf2 Rg5 49. Bd2 Rh5 50. Rfxf3 Qh7 51. Rf4 Rxh2 52. Qxh2 Qxh2+ 53. Kxh2
Kh7 54. Rxf5 exf5 55. e6 Kg7 56. exd7 Kf7 57. d8=Q Ke6 58. Re3+ Kf7 59. Qe7+
Kg6 60. Re6+ Kh5 61. Qh7# 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Rudman, Lev"]
[Black "De Witte, Sjoerd"]
[Result "0-1"]
[WhiteElo "1224"]
[BlackElo "1648"]
[Annotator "van,Jan"]
[PlyCount "85"]
[EventDate "2023.??.??"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. a4 Bb4 7. e3 b5 8. Be2
Bb7 9. O-O a6 10. Ne5 Bxc3 11. bxc3 Nbd7 12. Nxd7 Qxd7 13. Bxf6 gxf6 14. f4 c5
15. dxc5 Rg8 16. Bf3 Qxd1 17. Raxd1 Bxf3 18. Rxf3 Ke7 19. Rf2 Rgd8 20. Rfd2
Rxd2 21. Rxd2 Rd8 22. Rb2 Rb8 23. Rd2 Rc8 24. Rd6 Rxc5 25. Rxa6 b4 26. Kf2 bxc3
27. Ke2 Rd5 28. Rc6 Rd2+ 29. Kf3 Ra2 30. Rxc4 c2 31. a5 Kd6 32. a6 Kd5 33. Rc8
e5 34. f5 e4+ 35. Kf4 c1=Q 36. Rxc1 Rf2+ 37. Kg3 Ra2 38. Rc7 Rxa6 39. Rxf7 Ke5
40. Rxh7 Ra3 41. Kf2 Ra2+ 42. Kg1 Kxf5 43. Rd7 {rest niet leesbaar.} 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Schoonman, Ivo"]
[Black "Scheele, Peter"]
[Result "1-0"]
[WhiteElo "1647"]
[BlackElo "1171"]
[PlyCount "99"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 b5 7. Bb3 Bb7 8. f3
e6 9. Be3 Be7 10. O-O Nbd7 11. a3 O-O 12. Qd2 Rc8 13. a4 bxa4 14. Nxa4 Qc7 15.
Rfc1 d5 16. exd5 Nxd5 17. Bf2 h6 18. Bg3 e5 19. Nf5 Bg5 20. Qd1 Bxc1 21. Bxd5
Bg5 22. Nd6 Bxd5 23. Nxc8 Nf6 24. Ncb6 Be3+ 25. Bf2 Bxf2+ 26. Kxf2 Bc6 27. Nc4
Bxa4 28. Rxa4 Qc6 29. b3 e4 30. Qd6 Qxd6 31. Nxd6 exf3 32. gxf3 Rd8 33. Rxa6
Nd5 34. c4 Nc7 35. Rc6 Ne6 36. Rc8 Kf8 37. Rxd8+ Nxd8 38. b4 Ke7 39. Nf5+ Kf6
40. Nd4 Ke5 41. Ke3 Ne6 42. Nxe6 fxe6 43. f4+ Kd6 44. Ke4 g5 45. fxg5 hxg5 46.
h3 Kc6 47. Ke5 Kd7 48. b5 Kc7 49. Kxe6 Kb6 50. Kf5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Beentjes, Douwe"]
[Black "Verschoor, Marcel"]
[Result "0-1"]
[BlackElo "1646"]
[PlyCount "71"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Be7 7. Qd2 a6 8.
Be2 O-O 9. f4 d6 10. O-O-O Bd7 11. g4 b5 12. g5 Ne8 13. Rdg1 Rc8 14. Kb1 Na5
15. b3 Qc7 16. Nd1 Nc6 17. Nb2 Nxd4 18. Bxd4 e5 19. Be3 Bc6 20. Bd3 Qb7 21. Qg2
exf4 22. Bxf4 d5 23. Re1 Bb4 24. Re2 Nd6 25. Bxd6 Bxd6 26. Qg4 Rfe8 27. exd5
Bxd5 28. Rhe1 Rxe2 29. Qxe2 g6 30. Nd1 Bb4 31. c3 Bf8 32. Ne3 Bf3 33. Qd2 Rd8
34. Qc2 Rxd3 35. Ng4 Bxg4 36. Qxd3 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Hoogeveen, Luuk"]
[Black "Van der Kolk, Constantijn"]
[Result "1-0"]
[WhiteElo "1643"]
[PlyCount "67"]
[EventDate "2023.??.??"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O e6 5. d3 Be7 6. Nbd2 Nbd7 7. Qe1 c5 8. e4
Bg6 9. b3 O-O 10. Bb2 Re8 11. Ne5 Nxe5 12. Bxe5 Ng4 13. Bb2 Bf6 14. Bxf6 Qxf6
15. Qd1 Qg5 16. h4 Qh5 17. Bf3 f5 18. exd5 e5 19. Nc4 f4 20. Bxg4 Qh6 21. Be6+
Kh8 22. Nxe5 Rf8 23. Nxg6+ Qxg6 24. Qg4 Qf6 25. Qxf4 Qxf4 26. gxf4 Rxf4 27. h5
Raf8 28. Rae1 R8f6 29. Re4 Rf3 30. Bg4 R3f4 31. Rxf4 Rxf4 32. Be6 Rh4 33. Re1
Rxh5 34. Bg4 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.15"]
[Round "1"]
[White "Varela, César"]
[Black "Brouwer, Tim"]
[Result "0-1"]
[BlackElo "1631"]
[PlyCount "98"]
[EventDate "2023.??.??"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 Nbd7 5. Nf3 e6 6. Bd3 Bd6 7. O-O O-O 8. Re1
e5 9. cxd5 cxd5 10. e4 exd4 11. Nxd4 Bc5 12. Nb3 dxe4 13. Nxe4 Bb6 14. Bg5 Ne5
15. Bxf6 gxf6 16. Bc2 Qxd1 17. Raxd1 Kg7 18. h3 Bf5 19. Nd4 Bxd4 20. Rxd4 Bxh3
21. Re3 Be6 22. Rg3+ Ng6 23. Bb3 Rfd8 24. Rxd8 Rxd8 25. Nc5 Bxb3 26. Rxb3 b6
27. Rd3 Rc8 28. Nb3 Ne5 29. Rd2 f5 30. f4 Ng4 31. g3 a5 32. Nd4 Kf6 33. Nc2 b5
34. Na3 b4 35. Nb5 h6 36. a3 Rc1+ 37. Kg2 b3 38. Nd4 a4 39. Re2 Rc4 40. Nb5 h5
41. Nc3 Rd4 42. Kh3 Kg6 43. Kh4 f6 44. Nb5 Rd1 45. Kh3 Rd3 46. Kg2 Ne3+ 47. Kf2
Nc4 48. Nc3 Rxc3 49. bxc3 b2 0-1



