[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van der Werf, Mark"]
[Black "Van Briemen, Willem"]
[Result "1-0"]
[WhiteElo "2397"]
[BlackElo "1924"]
[PlyCount "53"]
[EventDate "2022.??.??"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Bg5 Be7 6. e3 O-O 7. Nc3 b6 8. cxd5
cxd5 9. Bd3 h6 10. Bh4 Bb7 11. O-O Nc6 12. a3 Rc8 13. Qe2 Na5 14. Nd2 Nh7 15.
Bxe7 Qxe7 16. Rac1 f5 17. b4 Nc6 18. Ba6 Nf6 19. Rc2 Bxa6 20. Qxa6 Nb8 21. Qd3
Rc6 22. Rfc1 Rfc8 23. Nf3 Nfd7 24. b5 Rc4 25. Nd2 R4c7 26. Nxd5 exd5 27. Rxc7
1-0

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van der Knaap, Jan"]
[Black "Passenier, Peter"]
[Result "0-1"]
[WhiteElo "1862"]
[BlackElo "2155"]
[PlyCount "54"]
[EventDate "2022.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O Bd7 9. f3 Nxd4 10. Qxd4 Be7 11. h4 b5 12. Kb1 Qc7 13. g4 O-O 14. Qd2 b4
15. Ne2 Rfc8 16. Nd4 Qb7 17. Bd3 Rab8 18. h5 a5 19. Be3 a4 20. g5 Ne8 21. f4 e5
22. fxe5 dxe5 23. Nf5 Bxf5 24. exf5 b3 25. cxb3 axb3 26. a4 Qa8 27. a5 Bb4 0-1

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van der Marel, Lambertus"]
[Black "Molenkamp, Jan Bertus"]
[Result "1-0"]
[WhiteElo "2123"]
[BlackElo "1858"]
[PlyCount "59"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Ne4 6. Qc2 d5 7. Nf3 Nd7 8.
g3 c6 9. Bg2 Qa5 10. Bd2 Nb6 11. c5 Nc4 12. O-O O-O 13. Rfb1 e5 14. Be1 f6 15.
Rb4 Ng5 16. Nxg5 fxg5 17. e4 Qd8 18. Rd1 a5 19. Rb3 a4 20. Rb4 Nxa3 21. Qa2 Nc4
22. exd5 cxd5 23. dxe5 Na5 24. Bxd5+ Kh8 25. Rxa4 Be6 26. c4 Nxc4 27. Rxa8 Qxa8
28. Qxa8 Rxa8 29. Bxe6 Nxe5 30. Bc3 1-0

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van Haastert, Edwin"]
[Black "Wooter, Robin"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2466"]
[BlackElo "2066"]
[PlyCount "85"]
[EventDate "2022.??.??"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Ne7 7. a4 h6 8. a5 Bh7
9. c4 dxc4 10. Nbd2 b5 11. axb6 axb6 12. Nxc4 Nd5 13. Bd2 Be7 14. Qb3 O-O 15.
Rfd1 Qc7 16. Rac1 Rfc8 17. Ne1 Qd8 18. Bf3 Rab8 19. g3 c5 20. Bxd5 exd5 21. Ne3
cxd4 22. Nxd5 Nxe5 23. Rxc8 Rxc8 24. Bf4 Nc6 25. Nxb6 Na5 26. Qb5 Rc5 27. Qe2
Nb3 28. Na4 Rc8 29. Qb5 Nc5 30. Nb6 Qe8 31. Qc4 Rc6 32. Nd5 Bf8 33. Qxd4 Ne4
34. b4 Qc8 35. Qa7 Nc3 36. Nxc3 Rxc3 37. Qd4 Bf5 38. b5 Rb3 39. b6 Bc5 40. Qd8+
Qxd8 41. Rxd8+ Kh7 42. Rd5 Rb1 43. Bd2 1-0

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Zeven, Frank"]
[Black "Pijpers, Arthur"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1966"]
[BlackElo "2464"]
[PlyCount "72"]
[EventDate "2022.??.??"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 O-O 5. e3 Re8 6. Nf3 d5 7. cxd5 Nxd5 8.
Bb2 Nc6 9. Be2 Bf5 10. O-O Qe7 11. a3 Bd6 12. Nc3 Nxc3 13. Bxc3 Bxa3 14. Qb3
Bb4 15. Bb5 Bxc3 16. Qxc3 Be4 17. Bxc6 Bxc6 18. Nd4 Be4 19. d3 Bg6 20. Rfc1 c6
21. Nb3 b6 22. Qxc6 Bxd3 23. Nd4 h6 24. Qc7 Qxc7 25. Rxc7 a5 26. Nc6 Be4 27.
Na7 Rad8 28. f3 Bg6 29. e4 Rd2 30. Nc8 Rb2 31. Rd1 a4 32. Ne7+ Kh7 33. Rdd7
Rxe7 34. Rxe7 a3 35. Rc1 a2 36. Ra7 b5 0-1

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van der Scheer, Henk"]
[Black "Polak, Alexander"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1905"]
[BlackElo "2229"]
[Annotator "van,Jan"]
[PlyCount "76"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. e3 d5 5. Bg2 Nc6 6. O-O b6 7. c4 Be7 8. Ne5 Bb7
9. Nc3 O-O 10. Nxc6 Bxc6 11. cxd5 exd5 12. b3 Ne4 13. Bb2 Bf6 14. Qc2 Qe7 15.
Nxe4 dxe4 16. dxc5 Bxb2 17. Qxb2 bxc5 18. Rfc1 Rac8 19. Bf1 Rfd8 20. Rd1 Bd5
21. Rac1 a5 22. Qc2 Rc7 23. Bc4 Bb7 24. Rd2 Rcd7 25. Rcd1 Bc6 26. Rxd7 Rxd7 27.
a4 Qd8 28. Rxd7 Qxd7 29. Kg2 h5 30. h3 Qf5 31. Qd2 Bd7 32. Qxa5 Qf3+ 33. Kg1
Bxh3 34. Qd8+ Kh7 35. Bf1 Be6 36. Qg5 Bxb3 37. a5 c4 38. Qc5 Qd1 {Zwart wint
op tijd.} 0-1

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Volders, Wessel"]
[Black "Maters, Arthur"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1845"]
[BlackElo "2073"]
[PlyCount "128"]
[EventDate "2022.??.??"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nbd7 5. Qe2 g6 6. O-O Bg7 7. d4 e5 8. dxe5
Nxe5 9. Nxe5 dxe5 10. Bb5+ Nd7 11. Be3 Qe7 12. Qc4 b6 13. Qd5 Rb8 14. Rd1 Rb7
15. Ba6 Rc7 16. Bxc8 Nf6 17. Qc4 Rxc8 18. Qa4+ Kf8 19. Bg5 h6 20. Bxf6 Bxf6 21.
Rd7 Qe6 22. Qxa7 Kg7 23. Na3 Rhd8 24. Rad1 Qxa2 25. h3 Qe6 26. Nb5 Rxd7 27.
Rxd7 Rd8 28. Rxd8 Bxd8 29. Qb7 Qb3 30. Qd7 Qxb2 31. Nd6 Qc1+ 32. Kh2 Qf4+ 33.
Kg1 Bg5 34. g3 Qf3 35. h4 Be3 36. fxe3 Qxg3+ 37. Kf1 Qf3+ 38. Kg1 Qxe3+ 39. Kg2
Qd2+ 40. Kf1 Qd1+ 41. Kg2 Qe2+ 42. Kg1 Qf3 43. Qe7 Qg3+ 44. Kf1 Qf4+ 45. Kg1 g5
46. Ne8+ Kg6 47. hxg5 Qxg5+ 48. Qxg5+ Kxg5 49. Nd6 Kf4 50. c4 h5 51. Kf2 f6 52.
Kg2 Kg4 53. Nc8 f5 54. exf5 Kxf5 55. Nxb6 Ke4 56. Nc8 Kd3 57. Nd6 e4 58. Kf2 h4
59. Ke1 h3 60. Nf5 h2 61. Ng3 Kxc4 62. Kd2 Kd4 63. Ne2+ Ke5 64. Ng3 Kf4 0-1

[Event "PK LeiSB 2022 groep A"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Roorda, Thijs"]
[Black "Albertus, Bram"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2163"]
[BlackElo "1904"]
[PlyCount "57"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. Nc3 d6 3. e4 g6 4. Be2 c6 5. h4 b5 6. a3 Nbd7 7. f4 e5 8. fxe5
dxe5 9. dxe5 Nxe5 10. Qxd8+ Kxd8 11. Bf4 Nfd7 12. Nf3 Bg7 13. O-O-O Ke7 14.
Rhf1 Bb7 15. Nxe5 Nxe5 16. Be3 Rhd8 17. Bc5+ Ke8 18. Bxb5 cxb5 19. Nxb5 Rac8
20. Rxd8+ Rxd8 21. Re1 Nc4 22. b3 Bh6+ 23. Kb1 Nd2+ 24. Ka2 Bxe4 25. Nd6+ Rxd6
26. Bxd6 f5 27. Bb4 Kf7 28. Rd1 Bxc2 29. Rxd2 1/2-1/2

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van der Maat, Niek"]
[Black "Cools, Frank"]
[Result "1-0"]
[WhiteElo "1878"]
[BlackElo "1518"]
[PlyCount "61"]
[EventDate "2022.??.??"]

1. d4 e6 2. Nf3 d5 3. e3 Nf6 4. Bd3 Nbd7 5. b3 Be7 6. O-O c5 7. Bb2 b6 8. Nbd2
Bb7 9. Ne5 O-O 10. f4 cxd4 11. exd4 Rc8 12. a3 Rc7 13. c4 Bd6 14. Qe2 Re8 15.
g4 Nf8 16. g5 N6d7 17. Rae1 f6 18. Qh5 Re7 19. Bxh7+ Nxh7 20. g6 Nhf8 21. Re3
Bxe5 22. fxe5 f5 23. Rh3 Nxg6 24. Qxg6 Nf8 25. Qh5 Bc6 26. Nf3 g6 27. Qh8+ Kf7
28. a4 Ke8 29. Ba3 Rf7 30. Ng5 Qd7 31. Rh7 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van Dijk, Ruud"]
[Black "Schenkelaars, Vincent"]
[Result "0-1"]
[WhiteElo "1363"]
[BlackElo "1808"]
[PlyCount "40"]
[EventDate "2022.??.??"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 O-O 6. h4 h5 7. Bg5 c6 8. Qd2 b5
9. Be2 b4 10. Bxf6 bxc3 11. Qxc3 exf6 12. Nh2 Qe7 13. f3 c5 14. g4 hxg4 15.
Nxg4 f5 16. Nf2 Bxd4 17. Qb3 Be6 18. Bc4 Nd7 19. Nd3 Rab8 20. Qa4 Nb6 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Wagemans, Ed"]
[Black "Bingen, Stanley"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1802"]
[BlackElo "1202"]
[PlyCount "85"]
[EventDate "2022.??.??"]

1. e4 c5 2. Nf3 g6 3. Nc3 Bg7 4. Be2 Nc6 5. O-O Nf6 6. d3 O-O 7. Be3 d6 8. h3
Be6 9. Qd2 a6 10. a4 Qd7 11. Ng5 Nd4 12. f4 Nxe2+ 13. Nxe2 h6 14. Nxe6 fxe6 15.
Ng3 Nh7 16. c3 h5 17. d4 b6 18. dxc5 bxc5 19. Bxc5 Qc6 20. Be3 h4 21. Ne2 Qxe4
22. Nd4 Qd5 23. Rad1 Nf6 24. Qc2 Kf7 25. Nf3 Qh5 26. Ng5+ Kg8 27. Nxe6 Rfc8 28.
f5 g5 29. Bxg5 Bh6 30. Bxh6 Qxh6 31. Nf4 Rc4 32. Qb3 Rac8 33. Rd4 d5 34. Nxd5
Rxd4 35. Nxf6+ Kg7 36. cxd4 exf6 37. Qb7+ Rc7 38. Qxc7+ Kg8 39. Re1 Qf8 40. Qd7
Qf7 41. Re8+ Kg7 42. Re7 Qxe7 43. Qxe7+ 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Veldhuyzen, Ywein"]
[Black "Valstar, Jasper"]
[Result "0-1"]
[WhiteElo "1181"]
[BlackElo "1771"]
[PlyCount "78"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. c4 d5 3. Nf3 g6 4. Nc3 Bg7 5. Bf4 O-O 6. e3 c5 7. Rc1 Nc6 8. Be2
Bg4 9. Nxd5 Nxd5 10. cxd5 Qxd5 11. h3 Bxf3 12. Bxf3 Qxa2 13. Rxc5 e5 14. dxe5
Qxb2 15. O-O Nxe5 16. Be4 Rad8 17. Bxe5 Bxe5 18. Qf3 b6 19. Rb1 Qxb1+ 20. Bxb1
bxc5 21. Bc2 Rc8 22. h4 Rc7 23. h5 Kg7 24. hxg6 fxg6 25. Qg4 Rcf7 26. f4 Bc7
27. Bb3 Re7 28. e4 Rxf4 29. Qd1 Rfxe4 30. Qa1+ Be5 31. Qc1 Bd4+ 32. Kh2 R7e5
33. Qf1 Rh5+ 34. Kg3 Re3+ 35. Kg4 Rxb3 36. Qf4 Bf6 37. Qc7+ Kh6 38. Qf4+ Rg5+
39. Kh4 Rb4 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van den Berg, Dick"]
[Black "Vroom, Ton"]
[Result "1-0"]
[WhiteElo "1765"]
[BlackElo "1176"]
[PlyCount "47"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bg5 Bd7 8.
Bc4 a6 9. e5 h6 10. Bd2 b5 11. exf6 Qxf6 12. Bb3 Bc6 13. d5 Bd7 14. O-O O-O 15.
Re1 Re8 16. Rc1 c6 17. Ne4 Qe7 18. dxe6 Bxe6 19. Bxe6 Bxd2 20. Qxd2 Qxe6 21.
Nc5 Qc8 22. Rxe8+ Qxe8 23. Rd1 Kh7 24. Qd8 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Helfferich, Gert"]
[Black "Lafeber, Evert"]
[Result "0-1"]
[WhiteElo "1130"]
[BlackElo "1756"]
[PlyCount "58"]
[EventDate "2022.??.??"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Bb5+ Bd7 5. Bxd7+ Nxd7 6. O-O e6 7. d4 Bd6
8. Bg5 Qb6 9. b3 Rc8 10. Nbd2 h6 11. Be3 Ngf6 12. Ne1 O-O 13. Nd3 Ne4 14. Nxe4
dxe4 15. Nb2 Qc7 16. Rc1 Ba3 17. Nc4 Bxc1 18. Bxc1 b5 19. Qg4 f5 20. Qg3 Qxg3
21. fxg3 bxc4 22. bxc4 Rxc4 23. c3 Rfc8 24. Bd2 Nb6 25. h4 Nd5 26. Rc1 e3 27.
Be1 Nxc3 28. Bxc3 Rxc3 29. Rxc3 Rxc3 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Kuijper, Arne"]
[Black "Rudman, Lev"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1748"]
[BlackElo "923"]
[Annotator "van,Jan"]
[PlyCount "27"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. c4 Nc6 5. e3 e5 6. cxd5 Qxd5 7. Nc3 Qd6 8.
d5 Ne7 9. Qb3 b6 10. Rc1 c5 11. e4 f5 12. Nb5 Qh6 13. Nc7+ Kd8 14. Rd1 {
Rest niet te ontcijferen} 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.17"]
[Round "1"]
[White "Bezuch, Michal"]
[Black "Pancharajah, Abisan"]
[Result "0-1"]
[BlackElo "1721"]
[PlyCount "74"]
[EventDate "2022.??.??"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Bd3 Nc6 7. h3 e5 8. d5 Ne7
9. O-O Ne8 10. Ne2 f5 11. Ng3 f4 12. Ne2 h6 13. b4 g5 14. c5 Ng6 15. cxd6 cxd6
16. Ba3 h5 17. Nh2 Qd7 18. Nc3 Nf6 19. f3 h4 20. Rc1 Nh5 21. Ng4 Ng3 22. Rf2 a6
23. Rfc2 Qd8 24. Ne2 Bxg4 25. Nxg3 Bxf3 26. Qxf3 fxg3 27. Qh5 Nf4 28. Qd1 Qb6+
29. Kh1 Qe3 30. Rd2 Rac8 31. Rxc8 Rxc8 32. Bb2 g4 33. hxg4 h3 34. gxh3 g2+ 35.
Kh2 Qxh3+ 36. Kg1 Qh1+ 37. Kf2 Nh3+ 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van Amsterdam, Jan"]
[Black "Broekhuizen, Wieger"]
[Result "1-0"]
[WhiteElo "1684"]
[PlyCount "65"]
[EventDate "2022.??.??"]

1. e4 Nc6 2. Nc3 e5 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d6 6. Nf3 Bg4 7. Bxf4 Bxf3+ 8.
Kxf3 g5 9. Bg3 g4+ 10. Ke3 Bh6+ 11. Ke2 Qg5 12. Qd3 O-O-O 13. a3 Re8 14. Bf2 f5
15. Be3 fxe4 16. Qd2 Qh5 17. g3 Rf8 18. Bg2 Bxe3 19. Qxe3 Nf6 20. Raf1 Na5 21.
b3 Nc6 22. Kd2 Qa5 23. b4 Qxa3 24. Ra1 Qxb4 25. Rhb1 Qxd4+ 26. Qxd4 Nxd4 27.
Rxa7 b6 28. Nxe4 Nxe4+ 29. Bxe4 Nf3+ 30. Kc3 Nxh2 31. Bc6 Kd8 32. Re1 Rf3+ 33.
Kb2 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "De Witte, Job"]
[Black "Heuff, Floris"]
[Result "0-1"]
[BlackElo "1672"]
[PlyCount "68"]
[EventDate "2022.??.??"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 a6 7. Bd3 dxc4 8.
Bxc4 b5 9. Bb3 g6 10. O-O Bg4 11. Be3 Bg7 12. h3 Bxf3 13. Qxf3 Rc8 14. Rfd1 O-O
15. Rac1 Na5 16. Bc2 Nc4 17. b3 Nb2 18. Rd2 Rxc3 19. Rb1 Nd5 20. Rxb2 Nxe3 21.
fxe3 Bh6 22. Re2 Bxe3+ 23. Kf1 Qxd4 24. Rb1 Qc5 25. Qe4 Bg5 26. Rd1 e6 27. Rd7
Rd8 28. b4 Qc8 29. Ra7 Rc4 30. Qe5 Rd5 31. Qb2 Rf5+ 32. Kg1 Bf6 33. Qb3 Bd4+
34. Kh2 Bxa7 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Agaian, Juri"]
[Black "De Witte, Sjoerd"]
[Result "0-1"]
[WhiteElo "1660"]
[PlyCount "92"]
[EventDate "2022.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be7 8. Bd3
h6 9. O-O O-O 10. Kh1 Nc6 11. f4 Nb4 12. f5 d5 13. Qf3 b6 14. Nd2 Bb7 15. b3
Rc8 16. Bb2 d4 17. Ne2 Nxc2 18. Rab1 Nb4 19. Ng3 Nd7 20. Bc4 Bg5 21. Rfd1 Nc5
22. Qg4 Ncd3 23. Qe2 Nf4 24. Qf3 Nc2 25. Ndf1 Qd7 26. Ne2 b5 27. axb5 axb5 28.
Nxf4 Bxf4 29. Bd3 Nb4 30. Ba3 Nxd3 31. Bxf8 Nf2+ 32. Qxf2 Kxf8 33. Qf3 Rc3 34.
Rd3 b4 35. Qe2 Ba6 36. Rxd4 exd4 37. Qxa6 d3 38. Qb6 Qe7 39. Ra1 Rc8 40. Ra7
Qxe4 41. Rd7 Kg8 42. Rd8+ Rxd8 43. Qxd8+ Kh7 44. f6 Qe2 45. Kg1 Be3+ 46. Nxe3
Qxe3+ 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Pancharajah, Akil"]
[Black "Noij, Fenno"]
[Result "1-0"]
[WhiteElo "1644"]
[PlyCount "57"]
[EventDate "2022.??.??"]

1. e4 d5 2. e5 c5 3. Nf3 Nc6 4. Bb5 Bd7 5. c3 a6 6. Bxc6 Bxc6 7. d4 e6 8. O-O
f6 9. Re1 Qd7 10. Be3 b6 11. a3 Nh6 12. Bxh6 gxh6 13. exf6 Rg8 14. Ne5 Rxg2+
15. Kxg2 Ba4 16. Qh5+ Kd8 17. Nxd7 Bxd7 18. Qf7 Ra7 19. Qxf8+ Kc7 20. dxc5 Bc6
21. cxb6+ Kxb6 22. f7 d4+ 23. f3 Rxf7 24. Qxf7 dxc3 25. Nxc3 h5 26. Rxe6 a5 27.
Qd7 a4 28. Rxc6+ Ka5 29. Qd8# 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Vijver, Jonathan"]
[Black "Scheele, Peter"]
[Result "1-0"]
[WhiteElo "1620"]
[PlyCount "51"]
[EventDate "2022.??.??"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 Nc6 7. Be3 e6 8. Bc4
Qc7 9. Bb3 Be7 10. Qd2 b5 11. g4 h6 12. h4 Ne5 13. O-O-O b4 14. Na4 Bb7 15. g5
Ng8 16. h5 d5 17. g6 Nf6 18. gxf7+ Kxf7 19. exd5 Bxd5 20. Bxd5 Nxd5 21. Nxe6
Kxe6 22. Qxd5+ Kf6 23. f4 Ng4 24. Bd4+ Ne5 25. Bxe5+ Qxe5 26. fxe5+ 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Sies, Fabian"]
[Black "In 't Veld, Roel"]
[Result "0-1"]
[BlackElo "1596"]
[PlyCount "60"]
[EventDate "2022.??.??"]

1. e4 b6 2. d4 e6 3. Nf3 Be7 4. Bd3 d6 5. O-O a6 6. Be3 Nd7 7. c4 g5 8. Qc1 h6
9. Nc3 c5 10. d5 e5 11. Ne2 Nf8 12. b3 Ng6 13. Ng3 Nf6 14. Nf5 Nf4 15. Bxf4
gxf4 16. N3h4 Nxe4 17. Ng7+ Kf8 18. Nhf5 Bxf5 19. Nxf5 Ng5 20. Kh1 Bf6 21. g4
e4 22. Bc2 h5 23. Qxf4 Be5 24. Qe3 hxg4 25. Kg2 Rxh2+ 26. Kg1 Nh3+ 27. Qxh3
Rxh3 28. Rad1 Rf3 29. Bxe4 Rxf5 30. Bxf5 Qh4 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van Dael, Dirk"]
[Black "Van der Ven, Joao"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "1533"]
[PlyCount "62"]
[EventDate "2022.??.??"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Qf3 Be7 9. Bxc6+ Nxc6 10. Qxc6+ Bd7 11. Qf3 O-O 12. O-O Rc8 13. Nc3 h6 14. Nge4
Nxe4 15. Qxe4 Bc6 16. Qe2 f5 17. d3 Bd6 18. a4 Qh4 19. Nb5 Bb8 20. c4 f4 21. f3
Rf5 22. Bd2 Rh5 23. h3 a6 24. Be1 Qg5 25. Nc3 Rxh3 26. Ne4 Bxe4 27. fxe4 Rc6
28. Rf3 Qg4 29. g3 Ba7+ 30. Bf2 Rxg3+ 31. Rxg3 Qxe2 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "De Leede, Tjeerd"]
[Black "Van Dijk, Jeroen"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1589"]
[PlyCount "87"]
[EventDate "2022.??.??"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 Nbd7 6. g5 Nh5 7. Be3 b6 8. Bxh5
gxh5 9. Qxh5 Bb7 10. f4 e6 11. Nge2 Qe7 12. Rf1 O-O-O 13. O-O-O h6 14. g6 fxg6
15. Qxg6 Rdf8 16. Qg1 Rhg8 17. Qf2 Rf7 18. Ng3 Rgf8 19. Qe2 a6 20. f5 e5 21. d5
Nc5 22. Nh5 Qh4 23. Nxg7 Rxg7 24. Bxc5 bxc5 25. Rg1 Rfg8 26. Rxg7 Rxg7 27. Rf1
Kd8 28. Qf2 Qxf2 29. Rxf2 Rf7 30. Rg2 Ke7 31. Nd1 Kf6 32. Rg6+ Ke7 33. Ne3 Rh7
34. Kd2 h5 35. Ke2 c6 36. c4 cxd5 37. cxd5 a5 38. Nc4 Ba6 39. Kd3 Kf7 40. Kc3
Bxc4 41. Kxc4 Rh8 42. Rxd6 Rc8 43. b3 h4 44. Kb5 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Van Efferen, Yannick"]
[Black "Engelen, Niels"]
[Result "1-0"]
[ECO "B02"]
[BlackElo "1553"]
[Annotator "van,Jan"]
[PlyCount "70"]
[EventDate "2022.??.??"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Nb6 5. Bb3 Nc6 6. d3 Nd4 7. Nf3 Nxb3 8.
axb3 Bg4 9. h3 Bh5 10. Ra5 Bg6 11. O-O e6 12. Bg5 Be7 13. Qe2 O-O 14. Rfa1 Bxg5
15. Nxg5 Nd5 16. Nf3 Nxc3 17. bxc3 a6 18. Ne5 c5 19. Qf3 Rb8 20. Nc4 h6 21. Ne3
Bh7 22. R5a4 Qc7 23. Rg4 Bg6 24. Rg3 Qe5 25. Nc4 Bh5 26. Qe4 Qd5 27. Qe3 Bg6
28. Ne5 Kh7 29. c4 Qd6 30. Nxg6 fxg6 31. Qe4 Rf6 32. h4 Qf4 33. Qxf4 Rxf4 34.
Re3 Re8 35. Rae1 Rf6 {Onleesbaar} 1-0

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Philippi, Lucas"]
[Black "Van Vleuten, Ronald"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1624"]
[PlyCount "55"]
[EventDate "2022.??.??"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 c6 6. Be3 Bf5 7. Bd3 Bxd3 8.
Qxd3 e6 9. Ne5 Nbd7 10. f4 Be7 11. O-O-O b5 12. Ne4 Nxe4 13. Qxe4 Qd5 14. Qxd5
cxd5 15. Rd3 Nxe5 16. dxe5 Kd7 17. Rhd1 Rhc8 18. Bd4 Rc6 19. Kd2 Rac8 20. c3 a5
21. Ke1 a4 22. a3 h5 23. Bf2 g6 24. Rd4 Rc4 25. R1d3 Bc5 26. Rxc4 bxc4 27. Bxc5
cxd3 28. Bb4 0-1

[Event "PK van de LeiSB 2022 groep B"]
[Site "Leiden, Netherlands"]
[Date "2022.05.16"]
[Round "1"]
[White "Konijnendijk, Arno"]
[Black "Schenkelaars, Robin"]
[Result "0-1"]
[ECO "D31"]
[BlackElo "1658"]
[PlyCount "58"]
[EventDate "2022.??.??"]
[SourceVersionDate "2022.05.17"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 Bd6 7. O-O O-O 8. g3
Re8 9. Qc2 e5 10. e4 exd4 11. Nxd4 dxe4 12. Bg5 Qc7 13. Nf5 Bf8 14. Bxf6 Nxf6
15. Rfe1 Bxf5 16. Bf1 Rad8 17. f3 Bg6 18. Bg2 exf3 19. Qf2 fxg2 20. Qxg2 Bc5+
21. Kh1 Bb4 22. Rxe8+ Rxe8 23. Ne2 Be4 24. Nf4 Bxg2+ 25. Nxg2 Qd7 26. Rf1 Qd2
27. a3 Re2 28. axb4 Rxg2 29. Rg1 Rxh2# 0-1



