[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Andringa, Arjo"]
[Black "Pijpers, Arthur"]
[Result "0-1"]
[WhiteElo "2014"]
[BlackElo "2459"]
[PlyCount "54"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 O-O 8.
Bb3 d6 9. f3 Bd7 10. Qd2 Rc8 11. O-O-O Ne5 12. Kb1 Nc4 13. Bxc4 Rxc4 14. h4 h5
15. g4 hxg4 16. Rdg1 Qa5 17. h5 gxh5 18. Nb3 Qe5 19. Bf4 Qe6 20. Qe3 Rfc8 21.
Nd4 Rxd4 22. Qxd4 Qc4 23. Qd2 Rc5 24. Bh6 Bh8 25. fxg4 hxg4 26. Rxg4+ Nxg4 27.
Re1 Bxc3 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Polak, Alexander"]
[Black "Vijver, Jonathan"]
[Result "1-0"]
[WhiteElo "2194"]
[BlackElo "1824"]
[PlyCount "71"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bg5 e6 7. f4 Be7 8. Qf3
Qc7 9. O-O-O Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. Bd3 Bb7 14. a3 Rc8 15.
Kb1 Nb6 16. h4 Nc4 17. Nce2 Qb6 18. f5 e5 19. f6 exd4 20. Bxc4 bxc4 21. fxe7 d3
22. Rdf1 dxc2+ 23. Kc1 Kd7 24. Qg4+ Kc7 25. Nc3 Rb8 26. Qg1 Qb3 27. Qa7 Kc8 28.
Rxf7 Re8 29. Rf8 Bc6 30. Rxe8+ Bxe8 31. Qxa6+ Rb7 32. Kd2 Qxb2 33. Rc1 h6 34.
Qxc4+ Kd7 35. e5 Qb6 36. e6+ 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van der Knaap, Jan"]
[Black "Passenier, Peter"]
[Result "1/2-1/2"]
[WhiteElo "1890"]
[BlackElo "2170"]
[PlyCount "122"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. a3
Nf6 9. b4 Bg4 10. Nbd2 Nd7 11. bxc5 Nxc5 12. a4 Qc7 13. h3 Bxf3 14. Nxf3 Ne6
15. a5 O-O 16. Bd2 c5 17. Ra4 b5 18. axb6 axb6 19. Qa1 Rxa4 20. Qxa4 Nd4 21.
Nxd4 cxd4 22. Qb3 Re8 23. c4 dxc3 24. Rc1 Re6 25. Rxc3 Rc6 26. Rxc6 Qxc6 27.
Be3 b5 28. Kf1 Bf8 29. Ke2 Bd6 30. h4 h5 31. g3 Kg7 32. Bd2 b4 33. Qa2 Qb6 34.
Qb3 Bc5 35. Be1 Kg8 36. Kf3 Qa5 37. Ke2 Qa3 38. Qb1 b3 39. Bc3 Bd4 40. Bxd4
exd4 41. Kd2 Qa2+ 42. Kc1 Qxf2 43. Qxb3 Qxg3 44. Qc4 Qe5 45. Qc8+ Kg7 46. Qd8
g5 47. hxg5 h4 48. Kd2 h3 49. g6 h2 50. gxf7 Kxf7 51. Qh4 Kg6 52. Ke1 Qh5 53.
Qg3+ Kh7 54. Qc7+ Kg6 55. Qd6+ Kf7 56. Qd7+ Kf6 57. Qxd4+ Kg5 58. Qe3+ Kg6 59.
Qg3+ Kh7 60. Qc7+ Kg6 61. Qg3+ Kh7 1/2-1/2

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Timmermans, Raymond"]
[Black "Van der Marel, Lambertus"]
[Result "0-1"]
[WhiteElo "1974"]
[BlackElo "2087"]
[PlyCount "72"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 exd4 7. Nxd4 c5 8.
Nb3 Qxd1 9. Rxd1 Bd6 10. Be3 b6 11. a4 a5 12. Nc3 Ba6 13. Nb5 Bxb5 14. axb5 Ne7
15. Nd2 Rd8 16. Nc4 Ng6 17. Nxd6+ Rxd6 18. Rxd6 cxd6 19. b4 axb4 20. Ra7 O-O
21. Kf1 Ne5 22. Ke2 Rb8 23. h4 h5 24. Bc1 Nc4 25. Kf3 Re8 26. Kf4 Kh7 27. f3 d5
28. g4 dxe4 29. gxh5 Rd8 30. Be3 Rd1 31. Bxc5 bxc5 32. fxe4 Rf1+ 33. Kg3 Rc1
34. Rc7 Rxc2 35. Rxc5 b3 36. b6 Nd6 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Margaryan, Artur"]
[Black "Van Drunick, Jan-Willem"]
[Result "1-0"]
[WhiteElo "2074"]
[BlackElo "1933"]
[PlyCount "73"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 a6 7. Qb3 b5 8. a4
Be6 9. Qa3 bxa4 10. e4 c6 11. Qxa4 O-O 12. Be2 Bc8 13. O-O Bb7 14. Bf4 Nbd7 15.
Rfd1 Re8 16. h3 Bf8 17. b4 e6 18. Bg5 Be7 19. Be3 Bf8 20. Ne5 Nb6 21. Qb3 Nfd7
22. Nd3 Qe7 23. Rab1 a5 24. Nc5 axb4 25. Nxb7 bxc3 26. Qxc3 Reb8 27. Qxc6 Rc8
28. Qb5 Rcb8 29. Nc5 Nxc5 30. Qxc5 Qxc5 31. dxc5 Na4 32. Rxb8 Rxb8 33. Rc1 Rc8
34. c6 Bg7 35. Ba6 Rc7 36. Bf4 e5 37. Be3 1-0

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van Briemen, Willem"]
[Black "Van Efferen, Yannick"]
[Result "0-1"]
[WhiteElo "1992"]
[BlackElo "1860"]
[PlyCount "78"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5
Ne7 9. b4 Nd7 10. a4 f5 11. a5 h6 12. Nd2 Nf6 13. f3 Nh5 14. Re1 Kh8 15. c5 Ng8
16. Nb3 Nf4 17. Bf1 Qg5 18. g3 Nf6 19. Kh1 fxe4 20. gxf4 exf4 21. Nd4 e3 22.
cxd6 cxd6 23. Ra3 Qh4 24. Ne6 Bxe6 25. dxe6 Nh5 26. Ne2 Rae8 27. Bg2 Rf5 28.
Rg1 Rxe6 29. Rd3 Ng3+ 30. Nxg3 fxg3 31. h3 e2 32. Qe1 Qc4 33. Rd2 Be5 34. Bb2
Bxb2 35. Rxb2 Rd5 36. Rd2 Rxd2 37. Qxd2 Kh7 38. f4 Re7 39. Rc1 Qxc1+ 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van der Bent, Gideon"]
[Black "Van der Scheer, Henk"]
[Result "0-1"]
[WhiteElo "1961"]
[BlackElo "1908"]
[PlyCount "138"]
[EventDate "2023.??.??"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. Nbd2 Nc6 6. c3 Qb6 7. Qc2 Bd7 8. Rc1
Rc8 9. Qb1 cxd4 10. exd4 Na5 11. b4 Nc6 12. Bd3 h6 13. O-O Be7 14. a4 O-O 15.
a5 Qd8 16. a6 b6 17. Nb3 Nh5 18. Bd2 Bd6 19. b5 Ne7 20. g3 Nf6 21. Ne5 Ne4 22.
c4 Nxd2 23. Nxd2 Bxe5 24. dxe5 dxc4 25. Nxc4 Bxb5 26. Qxb5 Qxd3 27. Rfd1 Qe2
28. Rd2 Qf3 29. Rcd1 Nd5 30. Rd3 Qe4 31. Nd6 Rc5 32. Qb2 Qb4 33. Rb3 Qg4 34. f3
Qg5 35. Ne4 Qf5 36. Nxc5 bxc5 37. Qe2 Rc8 38. Rc1 h5 39. Rb7 h4 40. Rc4 h3 41.
f4 Rd8 42. Rb3 Nb4 43. g4 Qh7 44. Rcc3 Qh4 45. Rxh3 Qe7 46. g5 c4 47. Qh5 Qc5+
48. Rbe3 Kf8 49. Kg2 Rd2+ 50. Re2 Rd1 51. Rf2 Nd3 52. Qxd1 Qxf2+ 53. Kh1 Qxf4
54. Rxd3 cxd3 55. Qxd3 Qc1+ 56. Kg2 Qxg5+ 57. Kf3 Qf5+ 58. Qxf5 exf5 59. Kf4 g6
60. h4 Ke7 61. h5 gxh5 62. Kxf5 h4 63. Kg4 Ke6 64. Kxh4 Kxe5 65. Kg3 Ke4 66.
Kf2 Kf4 67. Kf1 Kf3 68. Ke1 f5 69. Kf1 f4 0-1

[Event "PK LeiSB 2023 groep A"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Zeven, Frank"]
[Black "Serdijn, Adinda"]
[Result "1/2-1/2"]
[WhiteElo "1929"]
[BlackElo "1957"]
[PlyCount "123"]
[EventDate "2023.??.??"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c3 Ba5 5. e3 Nc6 6. Bxf6 Qxf6 7. Ne2 O-O 8.
d4 d5 9. Nf4 Ne7 10. Bd3 c6 11. Qc2 Bf5 12. O-O Bxd3 13. Qxd3 Bc7 14. Ne2 Rfe8
15. Nd2 Nf5 16. e4 dxe4 17. Nxe4 Bxh2+ 18. Kxh2 Qh4+ 19. Kg1 Qxe4 20. Qxe4 Rxe4
21. Rfe1 Rae8 22. Kf1 Nh4 23. f3 Re3 24. Nf4 g5 25. Nd3 Nf5 26. Nc5 Rxe1+ 27.
Rxe1 Rxe1+ 28. Kxe1 Nd6 29. Ke2 Kg7 30. Kd3 h5 31. a4 f5 32. d5 cxd5 33. Kd4 b6
34. Ne6+ Kf6 35. Kxd5 Nb7 36. Nd4 h4 37. Nc6 a6 38. Nb8 Nc5 39. a5 Na4 40. axb6
Nxb6+ 41. Kd4 g4 42. fxg4 fxg4 43. Nxa6 h3 44. gxh3 gxh3 45. Nc5 h2 46. Ne4+
Kf5 47. Ke3 Kg4 48. Ke2 Nd5 49. Nf2+ Kg3 50. Nh1+ Kg2 51. c4 Nc3+ 52. Ke1 Kxh1
53. Kf1 Ne4 54. c5 Nxc5 55. Kf2 Nd3+ 56. Kf1 Ne5 57. Kf2 Nc6 58. Kf1 Ne7 59.
Kf2 Nf5 60. Kf1 Ne3+ 61. Kf2 Nd1+ 62. Kf1 1/2-1/2


[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "De Witte, Sjoerd"]
[Black "Kohlbeck, Ton"]
[Result "1-0"]
[WhiteElo "1648"]
[BlackElo "1831"]
[PlyCount "27"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 dxc4 6. Ne5 Bb4+ 7. Nc3 O-O 8.
Nxc4 Nd5 9. Qd3 b5 10. Ne5 f6 11. Nf3 e5 12. O-O exd4 13. Nxd5 Qxd5 14. Ng5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Verschoor, Marcel"]
[Black "Molenkamp, Jan Bertus"]
[Result "1-0"]
[WhiteElo "1646"]
[BlackElo "1785"]
[PlyCount "107"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Bd7 7. O-O cxd4 8. cxd4
Rc8 9. a3 Na5 10. b4 Nc4 11. Nbd2 Bb5 12. Nxc4 Bxc4 13. Bxc4 Rxc4 14. Qa4+ Rc6
15. Bd2 h6 16. Rfc1 Ne7 17. Rc5 a6 18. Rac1 Kd7 19. Nh4 g5 20. Nf3 Nf5 21. Rxc6
bxc6 22. g4 Ng7 23. Be3 Be7 24. Qc2 Ne8 25. Nd2 Nc7 26. Nb3 Nb5 27. Qb2 Na7 28.
Na5 h5 29. gxh5 Qb5 30. Qc2 Rxh5 31. Qd1 Rh7 32. Qd2 Rg7 33. Kh1 Qa4 34. Qc3
Qb5 35. Qd2 Qb8 36. Qe2 Nb5 37. Qd2 f5 38. exf6 Bxf6 39. Kg2 g4 40. Nb3 Be7 41.
Bf4 Qb7 42. Qe3 Rf7 43. Re1 Rf6 44. Bg5 Rg6 45. Bxe7 Kxe7 46. Nc5 Qc8 47. Qd3
Rf6 48. Qh7+ Rf7 49. Qh4+ Kf8 50. Nxe6+ Kg8 51. Qg5+ Kh8 52. Qh6+ Rh7 53. Qf6+
Kg8 54. Re5 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Wagemans, Ed"]
[Black "Van der Ven, Joao"]
[Result "0-1"]
[WhiteElo "1784"]
[BlackElo "1649"]
[PlyCount "56"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bc5 5. O-O O-O 6. d3 Nd4 7. Nxd4 Bxd4 8.
Bg5 c6 9. Bc4 d6 10. h3 b5 11. Bb3 a5 12. a3 Be6 13. Qf3 h6 14. Be3 Ba7 15.
Rad1 Qe7 16. Ne2 a4 17. Bxe6 fxe6 18. Ng3 Nd5 19. Qe2 Nf4 20. Qd2 Qg5 21. d4 h5
22. c3 Rf6 23. dxe5 dxe5 24. Bxa7 Rxa7 25. Qd8+ Kh7 26. Qb8 Raf7 27. h4 Qxh4
28. Nh1 Ne2# 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Brouwer, Tim"]
[Black "Zwinkels, Wim"]
[Result "0-1"]
[WhiteElo "1631"]
[BlackElo "1776"]
[PlyCount "94"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 8. Bg5 h6
9. Be3 Na6 10. Qc1 Kh7 11. Qc2 Qe8 12. Nb5 Bd7 13. Nd2 Qe7 14. f3 Nh5 15. Nb3
b6 16. Nc1 f5 17. Nc3 Nc5 18. Nd3 Nf4 19. Nxf4 exf4 20. Bf2 fxe4 21. Nxe4 Nxe4
22. fxe4 Rae8 23. O-O-O Be5 24. Bf3 Qg7 25. Qd2 Re7 26. Bd4 Ba4 27. b3 Bd7 28.
h3 g5 29. Kc2 Bxd4 30. Qxd4 Qxd4 31. Rxd4 Kg6 32. Rd2 Kf6 33. Kd3 Ke5 34. Re2
Rh7 35. Bh5 Be8 36. Bxe8 Rxe8 37. Rf2 h5 38. h4 g4 39. g3 Rf8 40. Rxf4 Rxf4 41.
gxf4+ Kxf4 42. Rg1 g3 43. Ke2 Kg4 44. Rh1 Rf7 45. Rf1 Rxf1 46. Kxf1 Kxh4 47. e5
dxe5 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Beetstra, Jaap"]
[Black "Schoonman, Ivo"]
[Result "1-0"]
[WhiteElo "1738"]
[BlackElo "1647"]
[PlyCount "0"]
[EventDate "2023.??.??"]

 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Moeri, Erick"]
[Black "Shankar, Aravindh Swaminat"]
[Result "0-1"]
[WhiteElo "1522"]
[BlackElo "1729"]
[PlyCount "54"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Bd3 e6 6. Nd2 Bd6 7. Bg3 e5 8. dxe5
Nxe5 9. Bxe5 Bxe5 10. Ngf3 Bd6 11. h3 O-O 12. Ng5 Re8 13. Qc2 g6 14. O-O-O c4
15. Nxc4 dxc4 16. Bxc4 Be6 17. Nxe6 fxe6 18. Qb3 Qe7 19. Rd4 Be5 20. Rdd1 Ne4
21. Rhf1 a6 22. f4 Bg7 23. g4 b5 24. Be2 Rac8 25. Bf3 Nxc3 26. Rd3 Na4+ 27. Kb1
Nc5 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van de Poel, Jona"]
[Black "De Ruyter, Wim"]
[Result "1-0"]
[WhiteElo "1717"]
[BlackElo "1595"]
[PlyCount "45"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 Be7 6. Nc3 Re8 7. Bc4+ Be6 8.
Bxe6+ Kxe6 9. Qf3 Nbd7 10. g4 h6 11. h4 Rh8 12. Rg1 g5 13. hxg5 hxg5 14. Bxg5
Kf7 15. Bxf6 Bxf6 16. g5 Rg8 17. O-O-O Qe7 18. Nd5 Qd8 19. Qh5+ Kf8 20. gxf6
Nxf6 21. Qf5 Rxg1 22. Rxg1 Kf7 23. Rg6 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "De Leede, Tjeerd"]
[Black "Teianu, Maxim"]
[Result "1-0"]
[WhiteElo "1704"]
[BlackElo "1488"]
[Annotator "van,Jan"]
[PlyCount "125"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 cxd4 7. cxd4 Qb6 8. Be2
Nge7 9. Nc3 Nf5 10. Na4 Qc7 11. O-O Rc8 12. Be3 Nxe3 13. fxe3 Be7 14. Rc1 O-O
15. a3 Qd8 16. Nc5 Na5 17. b4 Bxc5 18. dxc5 Nc6 19. Qd3 h6 20. e4 Ne7 21. Nd4
Bc6 22. Bf3 Ng6 23. Nxc6 bxc6 24. Qc3 d4 25. Qb2 Nxe5 26. Rcd1 Nxf3+ 27. Rxf3
e5 28. Qb3 Qh4 29. Rdf1 Rc7 30. Qd3 Qe7 31. a4 Rb8 32. Rb1 Rbb7 33. Qc4 Qh4 34.
Qd3 Rb8 35. Qc2 Rd7 36. g3 Qg4 37. Kg2 d3 38. Qc4 d2 39. Rd1 Rf8 40. h3 Qg6 41.
Rd3 Rd4 42. Rxd4 exd4 43. Qxd4 f5 44. exf5 Qxf5 45. Qc4+ Kh8 46. Rxd2 Qf3+ 47.
Kh2 Re8 48. b5 Qe3 49. Qd4 Qe6 50. Qd6 Qe1 51. Rg2 cxb5 52. axb5 Qb1 53. Qc6
Re1 54. Rf2 Re7 55. b6 axb6 56. cxb6 Qb4 57. Qg6 Kg8 58. Qc6 Qd4 59. Qc8+ Kh7
60. Qf5+ Kg8 61. Ra2 Qd8 62. Qb5 Rb7 63. Rb2 {en de vlag valt.} 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van den Berg, Dick"]
[Black "Vlieland, Theo"]
[Result "0-1"]
[WhiteElo "1697"]
[BlackElo "1396"]
[Annotator "van,Jan"]
[PlyCount "46"]
[EventDate "2023.??.??"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8.
Nf3 h6 9. Bh4 b6 10. Ne5 Bb7 11. f4 c5 12. Rc1 cxd4 13. exd4 Ne4 14. Bxe7 Qxe7
15. O-O Nxe5 16. fxe5 f5 17. Nb5 Ba6 18. Rc7 Qb4 19. Nd6 Qxd4+ 20. Kh1 Bxd3 21.
Nxe4 dxe4 22. Qb3+ Kh7 23. Rfc1 e3 {vlag} 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Bregman, Koen"]
[Black "Been, Klaas"]
[Result "1-0"]
[WhiteElo "1696"]
[BlackElo "1543"]
[PlyCount "77"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bc4 O-O 7. O-O c6 8.
Be3 Qc7 9. Qd2 Nbd7 10. Rae1 b5 11. Bd3 Ne5 12. f4 Neg4 13. Nf3 Nxe3 14. Qxe3
Ng4 15. Qe2 b4 16. Nd1 c5 17. h3 Nf6 18. e5 dxe5 19. fxe5 Nh5 20. Qe4 g6 21.
Qxa8 Bxh3 22. Qe4 Ng3 23. Qf4 Nh5 24. Qh2 Be6 25. Ne3 c4 26. Be4 Bc5 27. Kh1
Rd8 28. Nf5 Bxf5 29. Bxf5 Ng7 30. Bh3 Qb6 31. Ng5 Rf8 32. Be6 h5 33. Bxf7+ Rxf7
34. Rxf7 Be3 35. Rxe3 Qxe3 36. Qf4 Qe1+ 37. Kh2 Nf5 38. e6 h4 39. Qb8# 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Branco, Moritz"]
[Black "Groenendijk, Patrick"]
[Result "0-1"]
[WhiteElo "1429"]
[BlackElo "1694"]
[PlyCount "70"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3
O-O 9. Qd2 Be6 10. Be2 Nbd7 11. Nd5 Nxd5 12. exd5 Bf5 13. g4 Bh4+ 14. Bf2 Bxf2+
15. Kxf2 Bg6 16. Kg2 Rc8 17. Rac1 f5 18. h3 fxg4 19. hxg4 Rf4 20. c3 Qf6 21.
Qe3 Rf8 22. Nd2 Qg5 23. Nf1 e4 24. Nh2 Ne5 25. Rcf1 exf3+ 26. Bxf3 Nxf3 27.
Rxf3 Be4 28. Rhf1 h5 29. Kg1 Bxf3 30. Rxf3 hxg4 31. Qe6+ Kh7 32. Rg3 R8f6 33.
Rxg4 Rxg4+ 34. Qxg4 Qxg4+ 35. Nxg4 Rg6 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Vergeer, Michiel"]
[Black "Ergincan, Çinar"]
[Result "1-0"]
[WhiteElo "1688"]
[Annotator "van,Jan"]
[PlyCount "36"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bg4 5. d5 a6 6. dxc6 axb5 7. cxb7 Rb8 8.
Qd5 Qd7 9. a4 c6 10. Qd3 Rxb7 11. axb5 cxb5 12. Ra8+ Ke7 13. Nc3 Be6 14. Ng5
Nf6 15. Nxe6 fxe6 16. O-O g6 17. Bg5 Bg7 18. Rxh8 Bxh8 {niet te oncijferen} 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van Veen, Kylian"]
[Black "Pasteels, Luc"]
[Result "1-0"]
[WhiteElo "1735"]
[BlackElo "1401"]
[Annotator "van,Jan"]
[PlyCount "34"]
[EventDate "2023.??.??"]

1. e4 e6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. d4 c5 7. Bg5 Qg6 8.
Bd3 f5 9. dxc5 Bxc5 10. Bxf5 Qxf5 11. Qd8+ Kf7 12. Qxh8 Bf8 13. O-O-O Nc6 14.
a3 h6 15. Be3 Ne7 16. Rd8 Ng6 17. Qh7 Qa5 {onleesbaar} 1-0

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Noij, Fenno"]
[Black "Van Amsterdam, Jan"]
[Result "0-1"]
[WhiteElo "1372"]
[BlackElo "1708"]
[PlyCount "66"]
[EventDate "2023.??.??"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. Bg5 Be7 5. Bxf6 Bxf6 6. cxd5 exd5 7. e3 c6 8.
Bd3 g6 9. h3 Bg7 10. Nf3 Nd7 11. O-O f5 12. Ne2 O-O 13. Nd2 Nf6 14. f3 Re8 15.
e4 fxe4 16. fxe4 dxe4 17. Bc4+ Kh8 18. Re1 Qd6 19. Nf1 Nh5 20. Qd2 Be6 21. b3
Bxc4 22. bxc4 Rad8 23. Rad1 Re7 24. Qe3 b6 25. Rd2 c5 26. dxc5 Qb8 27. Rxd8+
Qxd8 28. cxb6 axb6 29. Nd2 Re8 30. g4 Nf6 31. Ng3 Nxg4 32. Qf4 Qd4+ 33. Kg2 Rf8
0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Hooshangi, Milan"]
[Black "Erbilen, Inci"]
[Result "1/2-1/2"]
[WhiteElo "1605"]
[BlackElo "1338"]
[PlyCount "71"]
[EventDate "2023.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Be7 5. O-O O-O 6. d4 exd4 7. Nxd4 Ne5 8.
Bb3 c6 9. Nf5 Bc5 10. Bf4 Ng6 11. Bd6 Bxd6 12. Nxd6 Qe7 13. Re1 Qe5 14. h3 b5
15. Re3 Ba6 16. Ne2 c5 17. a4 c4 18. axb5 cxb3 19. Rxa6 bxc2 20. Qxc2 Ne8 21.
Qd2 Nxd6 22. Rxd6 Qxb5 23. Nc3 Qg5 24. Rxd7 Rad8 25. Red3 Rxd7 26. Qxg5 Rxd3
27. h4 h6 28. Qb5 Rfd8 29. h5 Nf4 30. Qa5 Rb8 31. Qe5 Rxb2 32. Qe8+ Kh7 33.
Qxf7 Nxh5 34. Qxh5 Rxc3 35. Qf5+ Kg8 36. Qd5+ 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van Vleuten, Ronald"]
[Black "Rudman, Lev"]
[Result "1/2-1/2"]
[WhiteElo "1590"]
[BlackElo "1224"]
[Annotator "van,Jan"]
[PlyCount "34"]
[EventDate "2023.??.??"]

1. Nf3 Nc6 2. d4 d5 3. e3 e6 4. a3 Nf6 5. Bd3 Bd6 6. b3 O-O 7. Bb2 Re8 8. Ne5
h6 9. Nd2 Nd7 10. O-O Ndxe5 11. dxe5 Bxe5 12. Bxe5 Nxe5 13. Be2 b6 14. f4 Nc6
15. Rc1 Qe7 16. g4 Bb7 17. Nf3 Rad8 {rest onleesbaar} 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Engelen, Niels"]
[Black "Beentjes, Douwe"]
[Result "0-1"]
[WhiteElo "1576"]
[PlyCount "60"]
[EventDate "2023.??.??"]

1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. a3 Nf6 5. Nc3 Be7 6. Bg5 h6 7. Bh4 b6 8. cxd5
Nxd5 9. Bxe7 Ncxe7 10. e4 Nxc3 11. bxc3 O-O 12. Bd3 Bb7 13. O-O Rc8 14. c4 c5
15. d5 exd5 16. exd5 Qd6 17. a4 Rcd8 18. Bc2 Bc8 19. Nh4 Qf6 20. Qd3 g6 21. Nf3
Bf5 22. Qd2 Bxc2 23. Qxc2 Nf5 24. Rad1 Rfe8 25. Rd3 Nd6 26. Re1 Rxe1+ 27. Nxe1
Re8 28. Nf3 Nxc4 29. h3 Nd6 30. a5 Qa1+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Bingen, Stanley"]
[Black "Den Hollander, Steven"]
[Result "0-1"]
[WhiteElo "1274"]
[BlackElo "1546"]
[PlyCount "82"]
[EventDate "2023.??.??"]

1. e4 e5 2. Bc4 Nc6 3. Nf3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qe2+ Be6 8.
Ng5 Qxf6 9. Nxe6 Qxe6 10. Qxe6+ fxe6 11. O-O O-O-O 12. Re1 e5 13. Bg5 Re8 14.
Nd2 h6 15. Bh4 g5 16. Bg3 Bb4 17. c3 dxc3 18. bxc3 Bxc3 19. Rad1 Rd8 20. Re2
Rhe8 21. f3 Nd4 22. Rf2 Nf5 23. Re2 Nxg3 24. hxg3 Bxd2 25. Rexd2 Rxd2 26. Rxd2
Rd8 27. Re2 c3 28. Rc2 Rd3 29. Kf1 h5 30. Ke1 e4 31. Re2 exf3 32. gxf3 Rxf3 33.
Re8+ Kd7 34. Rh8 Rxg3 35. Rxh5 Rg1+ 36. Kf2 Ra1 37. Rxg5 c2 38. Rg7+ Ke8 39.
Rg8+ Kf7 40. Rg1 Rxg1 41. Kxg1 c1=Q+ 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Scheele, Peter"]
[Black "De Witte, Job"]
[Result "0-1"]
[WhiteElo "1171"]
[BlackElo "1507"]
[PlyCount "88"]
[EventDate "2023.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Nbd7 7. a4 Qc7 8. Bd3
e6 9. O-O Qb6 10. Nce2 e5 11. fxe5 dxe5 12. c3 exd4 13. cxd4 Be7 14. b3 O-O 15.
Be3 Ng4 16. Bf4 Bd6 17. Bc4 Bxf4 18. Rxf4 Nge5 19. Rc1 Nxc4 20. bxc4 Qg6 21.
Qd3 Nf6 22. Nc3 Qh6 23. Rcf1 Bd7 24. d5 Rac8 25. R4f2 Ng4 26. h3 Nxf2 27. Rxf2
Qb6 28. e5 Qc5 29. Qe4 Qxc4 30. Qxc4 Rxc4 31. Rf3 Rfc8 32. Ne2 Re4 33. Nf4 Rxe5
34. Kh2 Bxa4 35. Rd3 Rd8 36. d6 g5 37. Nh5 Re6 38. Rd4 Bc6 39. Rg4 h6 40. Nf4
Rexd6 41. Ne2 Rd2 42. Nc3 Rc2 43. Nb1 Rb2 44. Nc3 Rdd2 0-1

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Uittenbogaard, Rob"]
[Black "Varela, César"]
[Result "1/2-1/2"]
[WhiteElo "1477"]
[PlyCount "77"]
[EventDate "2023.??.??"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 c5 5. Bg2 Be7 6. Nc3 cxd4 7. Nxd4 Nc6 8. O-O
O-O 9. Nxc6 bxc6 10. e3 Ba6 11. Re1 Bxc4 12. Qa4 Qb6 13. Qc2 e5 14. b3 Ba6 15.
Bb2 e4 16. Na4 Qc7 17. Nc5 Bxc5 18. Qxc5 Nd7 19. Qd4 f6 20. Rec1 Rac8 21. Bh3
Ne5 22. Be6+ Kh8 23. Kg2 Be2 24. Bh3 Bf3+ 25. Kg1 Rcd8 26. Ba3 Rfe8 27. Rc2 Nd3
28. Bc5 Rd7 29. b4 Qb7 30. Bf1 Ne5 31. Bg2 Rf7 32. Qc3 Qd7 33. Bd4 Rc8 34. Bxe5
fxe5 35. Qxe5 Qf5 36. Qxf5 Rxf5 37. Bxf3 Rxf3 38. Rd1 Rff8 39. Kg2 1/2-1/2

[Event "PK LeiSB 2023 groep B"]
[Site "Leiden, Netherlands"]
[Date "2023.05.22"]
[Round "2"]
[White "Van der Kolk, Constantijn"]
[Black "Cools, Frank"]
[Result "1-0"]
[BlackElo "1440"]
[PlyCount "109"]
[EventDate "2023.??.??"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Be2 Ne7 6. O-O O-O 7. Bg5 f6 8.
Be3 Be6 9. Nbd2 c6 10. c4 Nd7 11. Rc1 Ng6 12. Qc2 Re8 13. Bd3 Ndf8 14. Rfe1 Qd7
15. c5 Bf4 16. Nf1 Qc7 17. b4 Bd7 18. a4 a6 19. Rb1 b6 20. b5 a5 21. bxc6 Bxc6
22. cxb6 Qb7 23. Rec1 Bxe3 24. Nxe3 Ne7 25. Nd2 g6 26. Ng4 Kg7 27. Nf3 h5 28.
Ne3 Rec8 29. h3 Bb5 30. Qd1 Rxc1 31. Rxc1 Bc6 32. Qb3 Nd7 33. Qa3 Nc8 34. Nxd5
Ndxb6 35. Nxb6 Nxb6 36. Bb5 Bxf3 37. Qxf3 Qxf3 38. gxf3 Rc8 39. Rd1 Rd8 40. Bc6
Nc8 41. d5 Nd6 42. Kf1 Rb8 43. Rc1 Rc8 44. Rc5 Rb8 45. Rxa5 Nc4 46. Ra7+ Kh6
47. a5 Rb2 48. a6 Nd2+ 49. Kg2 Rb3 50. d6 Rc3 51. Bd5 Rc5 52. Ba8 Rg5+ 53. Kh1
Re5 54. d7 Re2 55. Kg2 1-0

