[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.06.21"]
[Round "9"]
[White "Sannen, Stijn"]
[Black "Wittert, Arnout"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1211"]
[PlyCount "59"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 e6 6. a3 Be7 7. Nf3 h6 8. Be2 0-0 9. 0-0 b6 10. Bf4 Bb7 11. Qd3 c5 12. dxc5 Bxc5 13. Rfd1 Nbd7 14. Nd4 e5 15. Be3 exd4 16. Bxd4 Qe7 17. Be3 Nxe4 18. Nxe4 Rad8 19. Nxc5 Nxc5 20. Qc2 Rc8 21. b4 Ne4 22. Qb2 Rc3 23. Bd4 Rfc8 24. Bxc3 Nxc3 25. Bg4 Qg5 26. Bh3 Nxd1 27. Rxd1 Rd8 28. Rxd8+ Qxd8 29. Qe2 Qg5 30. Qc2 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.03.22"]
[Round "6"]
[White "Versteegen, Ischa"]
[Black "Sannen, Stijn"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "1477"]
[BlackElo "1211"]
[PlyCount "57"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d3 Bd6 6. h3 Nf6 7. Bg5 h6 8. Bh4 g5 9. Bg3 Qe7 10. 0-0 c5 11. Nc3 Bd7 12. Qd2 0-0-0 13. Rfe1 Rhe8 14. a3 Nh7 15. Nd5 Qe6 16. b4 cxb4 17. axb4 c6 18. Nb6+ Kc7 19. Nxd7 Rxd7 20. c4 f5 21. exf5 Qxf5 22. b5 cxb5 23. cxb5 e4 24. dxe4 Rxe4 25. Qc2+ Kb8 26. Qxe4 Qxb5 27. Qe8+ Ka7 28. Bxd6 Rxd6 29. Qxb5 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.02.15"]
[Round "5"]
[White "Sannen, Stijn"]
[Black "Arnold, Frieda"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1211"]
[BlackElo "1754"]
[PlyCount "52"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. b3 g6 5. Nd2 Bg7 6. Bb2 0-0 7. e4 bxc4 8. bxc4 Qa5 9. Qc2 Na6 10. Bc3 Nb4 11. Qb3 Qc7 12. Ngf3 Rb8 13. Qa4 d6 14. a3 Bd7 15. Qd1 Na6 16. Be2 Nh5 17. Bxg7 Kxg7 18. 0-0 Nf4 19. Ra2 Qa5 20. Qa1+ Kg8 21. Bd1 Rb7 22. g3 Nh5 23. Be2 Rfb8 24. Rb1 Bg4 25. Rxb7 Rxb7 26. Rb2 Qc3 0-1

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.01.11"]
[Round "4"]
[White "Van Vleuten, Ronald"]
[Black "Sannen, Stijn"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1744"]
[BlackElo "1211"]
[PlyCount "33"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nc6 2. b3 e5 3. Bb2 d6 4. e3 a6 5. c4 Nf6 6. d3 Be7 7. Nc3 0-0 8. Be2 Re8 9. 0-0 b6 10. a3 Bb7 11. Nd2 d5 12. cxd5 Nxd5 13. Qc2 a5 14. Rfc1 Ba6 15. Nxd5 Qxd5 16. Qxc6 Qxb3 17. Nxb3 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.12.07"]
[Round "3"]
[White "Sannen, Stijn"]
[Black "Vroom, Ton"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1211"]
[BlackElo "1211"]
[PlyCount "101"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qf5 5. Nf3 Nc6 6. e3 e6 7. a3 Bd6 8. Bd3 Qa5 9. Bd2 0-0 10. d5 exd5 11. Na4 Nb4 12. axb4 Bxb4 13. Nc3 Qb6 14. 0-0 Qd6 15. Qb3 Bxc3 16. Bxc3 Be6 17. Qxb7 Nd7 18. Bc2 Nc5 19. Qb5 Rfb8 20. Qe2 Bg4 21. h3 Ne4 22. hxg4 Nc5 23. Be5 Qe7 24. Rfd1 f6 25. Bc3 Ne4 26. Rxd5 Qe6 27. Bxe4 Qxe4 28. Rd4 Qe6 29. Rad1 h6 30. Qc4 Qxc4 31. Rxc4 Rc8 32. Rd7 c6 33. Rd6 c5 34. Rd5 Rd8 35. Rcxc5 Rxd5 36. Rxd5 Kh7 37. Rd7 Kg6 38. Nh2 a5 39. Rd3 a4 40. Bb4 Rb8 41. Ba3 Rc8 42. Rc3 Rd8 43. Kf1 Rd1+ 44. Ke2 Rd7 45. Rc4 Rb7 46. f4 h5 47. gxh5+ Kxh5 48. Nf3 Kg4 49. Kf2 g5 50. fxg5+ Kf5 51. Rf4+ 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.11.09"]
[Round "2"]
[White "Uittenbogaard, Rob"]
[Black "Sannen, Stijn"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "1556"]
[BlackElo "1211"]
[PlyCount "121"]
[EventDate "2018.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Bf5 4. Nc3 Nf6 5. e3 e6 6. cxd5 cxd5 7. Bb5+ Nbd7 8. Qa4 a6 9. Bxd7+ Qxd7 10. Ne5 Qxa4 11. Nxa4 Ne4 12. 0-0 b5 13. Nc3 Nxc3 14. bxc3 Bd6 15. f3 0-0 16. Rf2 Rac8 17. g4 Bg6 18. Nxg6 hxg6 19. a4 Rxc3 20. axb5 axb5 21. Rb2 Ba3 22. Rbb1 Bxc1 23. Rxc1 Rxc1+ 24. Rxc1 Rb8 25. Rb1 Kf8 26. Kf2 Ke8 27. Ke2 Kd7 28. Kd3 f5 29. gxf5 gxf5 30. f4 Kd6 31. Ra1 Kc7 32. Ra6 Rb6 33. Ra7+ Rb7 34. Ra6 Kd7 35. Kc3 b4+ 36. Kb3 Ke7 37. Ra4 Kf6 38. Rxb4 Rxb4+ 39. Kxb4 g5 40. Kc5 g4 41. Kd6 Kf7 42. Kd7 Kf6 43. Ke8 Kg6 44. Ke7 Kh5 45. Kxe6 Kh4 46. Kxf5 Kh3 47. Kg5 g3 48. hxg3 Kxg3 49. f5 Kf3 50. f6 Kxe3 51. f7 Kxd4 52. f8Q Ke4 53. Qe7+ Kd4 54. Kf4 Kc4 55. Qd6 d4 56. Ke4 Kb3 57. Qxd4 Ka2 58. Qb4 Ka1 59. Kd3 Ka2 60. Kc2 Ka1 61. Qb2# 1-0

