[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.02.21"]
[Round "5"]
[White "Birginia, Jaden"]
[Black "Rosendaal, Frits"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "35"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bf5 6. Qb3 Qd7 7. Nf3 a6 8. Nbd2 b5 9. a4 b4 10. cxb4 e6 11. b5 Nb4 12. Rc1 Rc8 13. Rxc8+ Qxc8 14. Qc3 Qxc3 15. bxc3 Nd3+ 16. Bxd3 Bxd3 17. b6 Ne7 18. Ne5 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2020.01.24"]
[Round "4"]
[White "Engelen, Niels"]
[Black "Birginia, Jaden"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "1633"]
[PlyCount "73"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 b6 2. d4 Bb7 3. g3 e6 4. Bg2 Nf6 5. c4 Be7 6. Nc3 0-0 7. 0-0 Ne4 8. Qc2 Nxc3 9. bxc3 Nc6 10. e4 Na5 11. Nd2 Ba6 12. e5 Rc8 13. Be4 g6 14. Re1 Bxc4 15. Nxc4 Nxc4 16. h4 h5 17. Bh6 Na3 18. Qd3 Kh7 19. Bxf8 Qxf8 20. f4 f5 21. exf6 Qxf6 22. Re2 c5 23. Qa6 Rc7 24. Qxa3 cxd4 25. Qc1 d5 26. Bg2 d3 27. Re5 Bd6 28. Rg5 Rxc3 29. Qd2 Qd4+ 30. Kh2 Rc2 31. Qe1 Re2 32. Qf1 Qe3 33. Re5 Bxe5 34. fxe5 d2 35. Qf7+ Kh6 36. Qf8+ Kh7 37. Qf7+ 1/2-1/2

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.12.20"]
[Round "3"]
[White "Qi, Zimo"]
[Black "Birginia, Jaden"]
[Result "1-0"]
[ECO "A50"]
[PlyCount "99"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 b6 2. c4 Bb7 3. Nc3 e6 4. e4 Nf6 5. Bd3 Bb4 6. Qe2 Nc6 7. Nf3 d5 8. exd5 Ne7 9. dxe6 fxe6 10. 0-0 Bxf3 11. Qxf3 Kf7 12. a3 Bxc3 13. bxc3 h6 14. Bf4 g5 15. Be5 Ng6 16. Rfe1 g4 17. Qxf6+ Qxf6 18. Bxf6 Kxf6 19. Bxg6 Kxg6 20. Rxe6+ Kf7 21. Rae1 Rac8 22. Re7+ Kf6 23. R1e6+ Kf5 24. d5 a5 25. f3 h5 26. Rf7+ Kg5 27. f4+ Kh4 28. g3+ Kh3 29. Rf5 Rh7 30. Rg5 a4 31. f5 h4 32. gxh4 Kxh4 33. Reg6 Re8 34. Rxg4+ Kh5 35. Rg3 Re4 36. Kf2 Rxc4 37. Rh3+ Rh4 38. Rxh4+ Kxh4 39. Kf3 Rd7 40. Ke4 Re7+ 41. Kf4 Kh5 42. f6 Re1 43. Rg7 Rf1+ 44. Ke5 Rf3 45. Rg3 Rf2 46. Ke6 Re2+ 47. Kf7 Rxh2 48. Kg7 Re2 49. f7 Re7 50. Kg8 1-0

[Event "Leiden SB-ch 1920"]
[Site "Leiden"]
[Date "2019.11.08"]
[Round "1"]
[White "Birginia, Jaden"]
[Black "Rosendaal, Tommie"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "48"]
[EventDate "2019.11.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 cxd4 4. exd4 e6 5. Nf3 Nc6 6. c3 d5 7. Nbd2 Bd6 8. Bg3 0-0 9. Bd3 Re8 10. Ne5 Bf8 11. h4 Nxe5 12. Bxe5 Nd7 13. h5 Nxe5 14. dxe5 Qg5 15. Kf1 Qxe5 16. Nf3 Qf6 17. g4 e5 18. g5 Qf4 19. Rh4 Bg4 20. Nxe5 Be2+ 21. Bxe2 Qxh4 22. Qxd5 Rxe5 23. Qf3 Rae8 24. Bc4 Qxc4+ 0-1

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.06.21"]
[Round "9"]
[White "Birginia, Jaden"]
[Black "Tleis, Mohamed"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1365"]
[PlyCount "31"]
[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 e6 2. Bf4 d5 3. e3 Nf6 4. Nf3 Bd6 5. Bg3 Qe7 6. Nbd2 b6 7. c3 0-0 8. Bd3 Ba6 9. Qc2 c5 10. Bh4 Bxd3 11. Qxd3 c4 12. Qc2 h6 13. e4 g5 14. Nxg5 Nxe4 15. Ngxe4 Qc7 16. Nf6+ 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.05.24"]
[Round "8"]
[White "Eveleens, Ed"]
[Black "Birginia, Jaden"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1675"]
[BlackElo "1365"]
[PlyCount "123"]
[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. Bf4 Nf6 3. h3 h6 4. Nf3 Bf5 5. c3 c6 6. Qb3 Qb6 7. Nbd2 Nbd7 8. e3 e6 9. Be2 c5 10. Qxb6 Nxb6 11. dxc5 Bxc5 12. Nb3 Nbd7 13. Ne5 Bb6 14. Bb5 a6 15. Bxd7+ Nxd7 16. Nxd7 Kxd7 17. Nd4 Bg6 18. 0-0 f6 19. Nf3 Rhe8 20. Rfd1 Bf7 21. e4 e5 22. Be3 Bxe3 23. fxe3 Kc6 24. exd5+ Bxd5 25. Ne1 Rad8 26. Nd3 a5 27. Nf2 f5 28. b3 e4 29. c4 Be6 30. Kf1 h5 31. Ke1 g5 32. Rxd8 Rxd8 33. Rd1 Rg8 34. Rd4 g4 35. hxg4 hxg4 36. g3 Rh8 37. Kf1 Ra8 38. Nd1 a4 39. b4 b5 40. cxb5+ Kxb5 41. Nc3+ Kc6 42. a3 Rh8 43. Kg2 Rh7 44. b5+ Kc5 45. Rxa4 Rb7 46. Ra6 Bd7 47. a4 Kc4 48. Ne2 Kc5 49. Kf2 Rb6 50. Ra7 Be6 51. Rc7+ Kb4 52. Rc6 Rxc6 53. bxc6 Kxa4 54. Nd4 Bc8 55. Ke1 Kb4 56. Kd2 Kc4 57. Kc2 Kb4 58. Kb2 Kc4 59. Kc2 Kb4 60. Ne2 Kc5 61. Nd4 Kc4 62. Ne2 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.04.26"]
[Round "7"]
[White "Birginia, Jaden"]
[Black "Bingen, Stanley"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1365"]
[BlackElo "1262"]
[PlyCount "83"]
[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 b6 2. Bf4 Bb7 3. Nf3 e6 4. e3 Nf6 5. Nbd2 Nh5 6. Bg3 Nxg3 7. hxg3 c5 8. c3 cxd4 9. cxd4 Nc6 10. Rc1 Be7 11. a3 d5 12. Bb5 Rc8 13. Ne5 Qd6 14. Qc2 Kf8 15. Bxc6 Bxc6 16. Nxc6 Rxc6 17. Qxc6 Qd8 18. Qb7 Qd6 19. Rc8+ Bd8 20. Qxa7 g6 21. Nf3 Kg7 22. Ne5 Rf8 23. Rc6 Qe7 24. Qxe7 Bxe7 25. Rxb6 Rc8 26. 0-0 Rc2 27. Ra1 Bd8 28. Rb7 Bc7 29. a4 f6 30. Nd7 f5 31. Nc5 Kf6 32. Rxc7 Rxb2 33. a5 h5 34. a6 Rb8 35. Nd7+ Kg5 36. Nxb8 h4 37. a7 hxg3 38. a8Q Kg4 39. Qa6 gxf2+ 40. Kxf2 g5 41. Qe2+ Kh4 42. Rh7# 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.02.15"]
[Round "5"]
[White "Molsbergen, Chris"]
[Black "Birginia, Jaden"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1455"]
[BlackElo "1365"]
[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. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. 0-0 0-0 6. c3 a6 7. Bxc6 dxc6 8. Nxe5 Re8 9. Nf3 Bg4 10. Bg5 h6 11. Bh4 Qd7 12. Bxf6 gxf6 13. d4 Rad8 14. Nbd2 Bb6 15. b4 a5 16. a3 f5 17. Re1 Qe6 18. exf5 Qxf5 19. Qb3 Rb8 20. Ne5 c5 21. bxc5 Bxc5 22. Nxg4 Qxg4 23. dxc5 Qg5 24. Ne4 Qe5 25. Qc4 Kg7 26. Qd4 Qxd4 27. cxd4 Rbd8 28. Ng3 Rg8 29. Re7 Rc8 30. Rae1 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2019.01.11"]
[Round "4"]
[White "Birginia, Jaden"]
[Black "Hoogeveen, Luuk"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1365"]
[BlackElo "1550"]
[PlyCount "156"]
[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 d6 2. Bf4 g6 3. Nf3 Nf6 4. e3 Bg7 5. Bd3 0-0 6. h3 Nbd7 7. Nbd2 b6 8. c3 Bb7 9. 0-0 Qe8 10. Bc4 e5 11. Bg3 Kh8 12. Qb3 h6 13. d5 Nc5 14. Qd1 Bxd5 15. Bxd5 Nxd5 16. Nc4 Ne7 17. b4 Na4 18. Qc2 Qc6 19. Nb2 Nxb2 20. Qxb2 Nf5 21. Bh2 Qd7 22. Rad1 Qe7 23. e4 Nh4 24. Rd3 f5 25. Re1 fxe4 26. Rxe4 Nxf3+ 27. Rxf3 Rxf3 28. gxf3 Rf8 29. f4 Rf5 30. Qd2 g5 31. fxg5 Qxg5+ 32. Qxg5 Rxg5+ 33. Kf1 Bf6 34. Rc4 c5 35. bxc5 bxc5 36. Ra4 Rg7 37. Ra6 Rd7 38. c4 Be7 39. f4 exf4 40. Bxf4 Kg7 41. Ke2 h5 42. Kf3 Kf6 43. Ke4 Ke6 44. Rc6 Rb7 45. Rc8 Rb4 46. Kd3 Ra4 47. Rh8 h4 48. Rh6+ Kd7 49. Rh7 Ke6 50. Rh6+ Kf5 51. Bxd6 Bxd6 52. Rxd6 Ra3+ 53. Kc2 Rxa2+ 54. Kb3 Rh2 55. Rd5+ Ke4 56. Rxc5 Rxh3+ 57. Kb4 Rh1 58. Rh5 Kf3 59. Kc3 h3 60. c5 Kg2 61. Kd2 Rf1 62. Rg5+ Kh1 63. c6 Rf7 64. Ke2 h2 65. Rg6 a5 66. Rd6 Kg2 67. Rg6+ Kh1 68. Rd6 Kg2 69. Rg6+ Kh3 70. Rh6+ Kg3 71. Rg6+ Kh4 72. Rh6+ Kg5 73. Rxh2 Rc7 74. Rh8 Rxc6 75. Ra8 Rc5 76. Ke3 Kf5 77. Kd4 Re5 78. Kc4 Re4+ 1/2-1/2

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.12.07"]
[Round "3"]
[White "Bax, Marton"]
[Black "Birginia, Jaden"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1363"]
[BlackElo "1365"]
[PlyCount "139"]
[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. Bc4 Nf6 4. d3 Bc5 5. Bg5 h6 6. Bh4 d6 7. Nc3 0-0 8. Nd5 g5 9. Bg3 Bg4 10. c3 Nxd5 11. Bxd5 Qf6 12. h4 Rab8 13. hxg5 hxg5 14. Qe2 Ne7 15. Bb3 Ng6 16. 0-0-0 Nh4 17. Bxh4 gxh4 18. Rh2 h3 19. Rdh1 Kg7 20. Bd1 Rh8 21. gxh3 Bh5 22. Kb1 Rbd8 23. Rg1+ Kf8 24. Rg3 d5 25. Rhg2 dxe4 26. Qxe4 Bg6 27. Qxe5 Bxd3+ 28. Bc2 Bxc2+ 29. Kxc2 Qxe5 30. Nxe5 Bd6 31. f4 Rh5 32. Re2 Bxe5 33. Rxe5 Rxe5 34. fxe5 Re8 35. Rg5 Re6 36. h4 Rh6 37. h5 Ke7 38. Kd3 Ke6 39. Ke4 c6 40. c4 a5 41. Rf5 Ke7 42. Kd4 b6 43. a3 Rh8 44. b4 Rd8+ 45. Ke4 a4 46. Rf6 Rh8 47. Rxc6 Rxh5 48. Rxb6 Rh4+ 49. Kd5 Rh3 50. c5 Rxa3 51. Rb7+ Kd8 52. Rxf7 Ra1 53. c6 a3 54. Ra7 a2 55. Ke6 Kc8 56. Ke7 Kb8 57. c7+ Kc8 58. b5 Re1 59. Rxa2 Rxe5+ 60. Kd6 Re6+ 61. Kxe6 Kxc7 62. Kd5 Kb6 63. Kc4 Kb7 64. Ra6 Kc7 65. Kc5 Kb7 66. Rc6 Ka7 67. b6+ Kb8 68. Rc7 Ka8 69. Kc6 Kb8 70. b7 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.11.09"]
[Round "2"]
[White "Schenkelaars, Vincent"]
[Black "Birginia, Jaden"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "1810"]
[BlackElo "1365"]
[PlyCount "51"]
[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. Nf3 Nc6 3. c4 Nf6 4. Nc3 e6 5. a3 b6 6. cxd5 Nxd5 7. e4 Nxc3 8. bxc3 Bb7 9. Bd3 g6 10. Bg5 Be7 11. Be3 0-0 12. 0-0 Bf6 13. Nd2 e5 14. d5 Ne7 15. Rc1 c6 16. c4 Ba6 17. Qa4 Bb7 18. Qb3 Bg7 19. a4 Ba6 20. Rfd1 f5 21. f3 f4 22. Bf2 Rb8 23. d6 Nc8 24. c5+ Rf7 25. Bxa6 Qe8 26. Bc4 1-0

[Event "Leiden SB-ch 1819"]
[Site "Leiden"]
[Date "2018.10.19"]
[Round "1"]
[White "Birginia, Jaden"]
[Black "Groenendijk, Patrick"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1365"]
[BlackElo "1715"]
[PlyCount "104"]
[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. Bf4 g6 3. Nf3 Bg7 4. e3 0-0 5. Nc3 d6 6. Bd3 Nfd7 7. Bb5 c6 8. Bc4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Qxd8 Rxd8 12. Bg3 Bf5 13. e4 Bc8 14. 0-0 b5 15. Rad1 Nd7 16. Be2 Bb7 17. Rd2 Nc5 18. Bd3 b4 19. Nb1 Rd4 20. Rfd1 Rad8 21. f3 Nxd3 22. Rxd3 Rxd3 23. cxd3 Ba6 24. a3 Rxd3 25. Rxd3 Bxd3 26. Nd2 bxa3 27. bxa3 f6 28. Bf2 a6 29. Nb3 Bf8 30. a4 Bb4 31. Nc1 Bc2 32. Bg3 Bxa4 33. f4 Bc5+ 34. Kh1 Be3 35. fxe5 Bxc1 36. exf6 Bb2 37. e5 Bb3 38. Bf4 a5 39. g4 a4 40. g5 a3 41. e6 Bxe6 42. h4 a2 43. h5 a1Q+ 44. Kh2 Be5 45. f7+ Kxf7 46. hxg6+ Kxg6 47. Kg2 Bxf4 48. Kf3 Qe5 49. Kg2 Qe3 50. Kf1 Bg3 51. Kg2 Qf2+ 52. Kh1 Bd5# 0-1

