[Event "Leiden Noteboom op 83rd"]
[Site "Leiden"]
[Date "2024.02.17"]
[Round "2"]
[White "Van Roon, Sjoerd"]
[Black "Dekker, Jasper"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2240"]
[BlackElo "1884"]
[PlyCount "53"]
[EventDate "2024.02.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CB08_2024"]
[SourceDate "2024.02.21"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. a4 bxa4 14. Rxa4 a5 15. Bc4 Rb8 16. b3 Kh8 17. h4 Bh6 18. Nce3 Bxe3 19. Nxe3 Be6 20. 0-0 Bxc4 21. Nxc4 f5 22. Nxd6 f4 23. Qd5 Qxh4 24. Nf7+ Rxf7 25. Qxf7 g5 26. Rc4 Qh6 27. Qc7 1-0

[Event "Hilversum op"]
[Site "Hilversum"]
[Date "2022.06.17"]
[Round "2"]
[White "Dekker, Jasper"]
[Black "Tabak, Stefan"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1860"]
[BlackElo "2164"]
[PlyCount "144"]
[EventDate "2022.06.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 e5 3. Nf3 Nf6 4. Nxe5 Qe7 5. d4 Nc6 6. Bd3 cxd4 7. Nxc6 dxc6 8. cxd4 Qb4+ 9. Bd2 Qxd4 10. Bc3 Bb4 11. 0-0 Bxc3 12. Nxc3 Bg4 13. Qc2 Rd8 14. e5 Qxd3 15. Qxd3 Rxd3 16. exf6 gxf6 17. Ne4 Ke7 18. Rae1 Be6 19. f4 f5 20. Nc3 Rhd8 21. Rf2 Kf6 22. a3 a5 23. g3 b5 24. Rc1 Rd2 25. Rc2 Rxf2 26. Kxf2 Bb3 27. Re2 b4 28. axb4 axb4 29. Nb1 c5 30. Ke3 c4 31. Rd2 Re8+ 32. Kf2 Ba2 33. Rd1 Rc8 34. Ke3 Re8+ 35. Kf2 Ra8 36. Ke3 Bb3 37. Rd6+ Ke7 38. Rb6 Ba2 39. Nd2 c3 40. bxc3 bxc3 41. Nb3 c2 42. Kd2 Rc8 43. Kc1 Rc4 44. Na5 Rc3 45. Nc6+ Kf8 46. Nd4 Bb1 47. Nxf5 Ke8 48. Nd6+ Ke7 49. Nf5+ Kd7 50. Rd6+ Kc7 51. Rd2 Rf3 52. Rxc2+ Bxc2 53. Kxc2 Rf2+ 54. Kd3 Rxh2 55. Ke4 Kd7 56. Kf3 Ke6 57. Kg4 Ra2 58. Ng7+ Kf6 59. Nh5+ Kg6 60. f5+ Kh6 61. Nf4 Ra4 62. f6 Rb4 63. Kf5 Rb5+ 64. Ke4 Kg5 65. Nd5 h6 66. Nc3 Ra5 67. Nd5 Ra3 68. Ne3 Kxf6 69. Kf4 Ra4+ 70. Kf3 Kg5 71. Kg2 Ra3 72. Nc2 Ra2 0-1

[Event "Utrecht Keres Memorial"]
[Site "Utrecht"]
[Date "2022.05.27"]
[Round "3"]
[White "Nitrauw, Peter"]
[Black "Dekker, Jasper"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "1697"]
[BlackElo "1860"]
[PlyCount "79"]
[EventDate "2022.05.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 e5 6. Nf3 d4 7. Nb1 Nc6 8. e3 Bb4+ 9. Bd2 dxe3 10. fxe3 Bg4 11. Be2 Bxf3 12. Bxf3 Qh4+ 13. g3 Qxc4 14. Be2 Qe4 15. 0-0 Rd8 16. Qb3 Rxd2 17. Nxd2 Bxd2 18. Qxf7+ Kd8 19. Rad1 Qxe3+ 20. Rf2 Nge7 21. Bg4 Kc7 22. Rdxd2 h5 23. Rd7+ Kb8 24. Bf3 e4 25. Bg2 h4 26. Rxe7 Nxe7 27. Qxe7 h3 28. Bxe4 Qe1+ 29. Rf1 Qe3+ 30. Kh1 Qb6 31. Rf8+ Rxf8 32. Qxf8+ Kc7 33. Qxg7+ Kd8 34. Qxb7 Qe3 35. Qd5+ Ke7 36. Qe5+ Kd8 37. Qd6+ Kc8 38. Bf5+ Kb7 39. Qb4+ Ka6 40. Bc8# 1-0

[Event "Basel Special op"]
[Site "Basel"]
[Date "2021.07.18"]
[Round "2"]
[White "Dekker, Jasper"]
[Black "Wuethrich, Lorenz"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1823"]
[BlackElo "2135"]
[PlyCount "84"]
[EventDate "2021.07.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 d6 6. Nf3 Nc6 7. Bc4 Nb6 8. Bb3 d5 9. 0-0 Bg4 10. Be3 e6 11. a3 Be7 12. Nbd2 Rc8 13. Rc1 0-0 14. Ba2 Qd7 15. h3 Bf5 16. Re1 Na5 17. Qe2 Na4 18. Nf1 Nc4 19. g4 Bg6 20. Bxc4 dxc4 21. Ng3 Qb5 22. b4 Bd3 23. Qa2 c3 24. Qa1 Qd5 25. Nh2 f6 26. Ne2 Bxe2 27. Rxe2 fxe5 28. dxe5 Qxe5 29. Qa2 Bd6 30. f4 Qd5 31. Qxd5 exd5 32. Rf2 Rfe8 33. Rf3 Re4 34. Nf1 d4 35. Bxd4 Rxd4 36. f5 Bf4 37. Rc2 Re8 38. Kg2 Re1 39. Ng3 Rd2+ 40. Rf2 Rxf2+ 41. Kxf2 Bxg3+ 42. Kxg3 Re3+ 0-1

[Event "Davos op 20th"]
[Site "Davos"]
[Date "2021.06.13"]
[Round "5"]
[White "Dekker, Jasper"]
[Black "Mazenauer, Christian"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1825"]
[BlackElo "1455"]
[PlyCount "43"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bb4 7. 0-0 Nge7 8. Qe2 0-0 9. Rd1 Qc7 10. Nb5 Qd8 11. Bf4 d5 12. Nc7 Bd6 13. Bxd6 Qxd6 14. Nxa8 Qb8 15. exd5 exd5 16. Nb6 dxc4 17. Nxc4 Be6 18. Rac1 b5 19. Nfe5 Nxe5 20. Nxe5 Rd8 21. Rxd8+ Qxd8 22. Rd1 1-0

[Event "Davos op 20th"]
[Site "Davos"]
[Date "2021.06.13"]
[Round "4"]
[White "Dekker, Jasper"]
[Black "Raimondi, Francesco"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1825"]
[BlackElo "1581"]
[PlyCount "85"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. 0-0 Nxd4 9. Nbd2 Nh6 10. Nxd4 Qxd4 11. Nf3 Qb6 12. Be3 Qd8 13. Qd2 Bc6 14. b4 a6 15. a4 a5 16. b5 Bd7 17. Rac1 Bb4 18. Qc2 Rc8 19. Qb1 Ng8 20. Bd4 h5 21. h3 Nh6 22. Rxc8 Bxc8 23. Be3 Nf5 24. Bxf5 exf5 25. Bg5 Qb6 26. Qd3 Be6 27. Nd4 0-0 28. Rc1 Bc5 29. Be3 f4 30. Nxe6 Bxe3 31. Nxf8 Bxc1 32. Nd7 Qe6 33. Nc5 Qxe5 34. Nxb7 Qe1+ 35. Qf1 Qb4 36. Qxc1 Qxa4 37. Nd6 Qb4 38. Qc8+ Kh7 39. Qf5+ g6 40. Qxf7+ Kh6 41. Qf8+ Kh7 42. Qe7+ Kh6 43. Nf7+ 1-0

[Event "Davos op 20th"]
[Site "Davos"]
[Date "2021.06.12"]
[Round "2"]
[White "Dekker, Jasper"]
[Black "Pogan, Nikolas"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1825"]
[BlackElo "2248"]
[PlyCount "76"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. Re1 c6 8. a4 a5 9. h3 Nb6 10. Bf1 exd4 11. Nxd4 d5 12. e5 Ne8 13. Be3 c5 14. Ncb5 cxd4 15. Qxd4 Nc4 16. Bxc4 dxc4 17. Qxd8 Bxd8 18. Bc5 b6 19. Bxf8 Kxf8 20. Rad1 Be7 21. f4 h5 22. Kh2 h4 23. Nd4 g6 24. Rf1 Ng7 25. Nb5 Nf5 26. Rf3 Bb7 27. Rc3 Bb4 28. Rxc4 Ne3 29. Rxb4 axb4 30. Rd6 Rxa4 31. Rxb6 Bxg2 32. Rb8+ Ke7 33. Kg1 Ra8 34. Rxa8 Bxa8 35. c3 b3 36. c4 Nxc4 37. Kf2 Nxb2 38. Nd4 Nd3+ 0-1

[Event "Davos op 20th"]
[Site "Davos"]
[Date "2021.06.12"]
[Round "3"]
[White "Troesch, Alexander"]
[Black "Dekker, Jasper"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "1560"]
[BlackElo "1825"]
[PlyCount "82"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. Be3 d6 7. h3 0-0 8. Qd2 Nd4 9. Nge2 Ne8 10. 0-0 Rb8 11. Rab1 b5 12. b4 Bd7 13. Rfc1 Qc8 14. Nd5 Qd8 15. Nxd4 cxd4 16. Bh6 e6 17. Bxg7 Nxg7 18. Nf4 f5 19. Re1 g5 20. Ne2 f4 21. Nxd4 e5 22. Nf3 h5 23. Nh2 g4 24. h4 Ne6 25. c3 Qb6 26. Kh1 Rf7 27. Bf1 Rbf8 28. Re2 Bc6 29. Ra1 d5 30. gxf4 dxe4 31. dxe4 Rxf4 32. Bg2 Rxf2 33. Rxf2 Rxf2 34. Qh6 Ng7 35. Qg5 Qc7 36. Qe3 Rf4 37. Rf1 Qf7 38. Kg1 Qf6 39. Qxa7 Qxh4 40. Rxf4 exf4 41. Qb8+ Kh7 1/2-1/2

[Event "Davos op 20th"]
[Site "Davos"]
[Date "2021.06.11"]
[Round "1"]
[White "Madhavan, Kailash"]
[Black "Dekker, Jasper"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1433"]
[BlackElo "1825"]
[PlyCount "86"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Be2 d6 5. Nf3 0-0 6. 0-0 c5 7. c3 b6 8. h3 Bb7 9. Na3 a6 10. Qb3 Nbd7 11. c4 Rb8 12. Qd1 cxd4 13. exd4 Rc8 14. Rc1 Ne4 15. Bd3 e5 16. Bxe4 Bxe4 17. dxe5 dxe5 18. Bh2 Nc5 19. Nxe5 Bxe5 20. Bxe5 Nd3 21. Rc3 Nxe5 22. Qxd8 Rfxd8 23. Re1 Bxg2 24. Kxg2 Nd3 25. Rb1 Nf4+ 26. Kg3 Ne2+ 27. Kg2 Nxc3 28. bxc3 Rc6 29. Rb3 Rd2 30. Nb1 Rxa2 31. Ra3 Rb2 32. Ra1 Rxc4 33. Kf3 b5 34. Kg3 Ra4 35. Na3 Rb3 36. Nc2 Rxc3+ 37. f3 Rxc2 38. Rd1 Ra3 39. Kf4 Rcc3 40. Kg5 Kg7 41. f4 Rg3+ 42. Kh4 Rxh3+ 43. Kg5 Rag3# 0-1

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.30"]
[Round "9"]
[White "Dekker, Jasper"]
[Black "Hofstra, Tijmen"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1700"]
[BlackElo "1546"]
[PlyCount "54"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Ne7 7. Bf4 Bc7 8. Bxc7 Qxc7 9. Nb5 Qe5 10. Nd6+ Kf8 11. Qd3 Qxb2 12. Be2 b6 13. 0-0 Ba6 14. Qf3 Qf6 15. Qe3 Bxe2 16. Qxe2 Nbc6 17. Rad1 Ng6 18. g3 h5 19. f4 Qc3 20. Rd3 Qb2 21. Nc4 Qf6 22. Rxd7 h4 23. Ne5 hxg3 24. Rxf7+ Qxf7 25. Nxf7 Rxh2 26. Qg4 Nh4 27. Ne5 Rg2+ 1/2-1/2

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.29"]
[Round "8"]
[White "Husers, Yannic"]
[Black "Dekker, Jasper"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1848"]
[BlackElo "1700"]
[PlyCount "88"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. f4 c5 2. b3 d5 3. Nf3 Nc6 4. e3 Nf6 5. Bb2 g6 6. Bd3 Bg7 7. 0-0 0-0 8. a3 Qb6 9. Nc3 c4 10. Be2 cxb3 11. cxb3 Bf5 12. Ne5 Qd8 13. g4 d4 14. Nxc6 bxc6 15. Na4 d3 16. Bf3 Be4 17. Nc5 Qd5 18. Nxe4 Nxe4 19. Bxg7 Kxg7 20. Rc1 f5 21. Rc4 Rab8 22. Bxe4 fxe4 23. Qa1+ Kg8 24. Qc3 Rb6 25. Rc1 Rfb8 26. b4 a5 27. Rc5 Qe6 28. f5 axb4 29. axb4 Qf6 30. Qc4+ Qf7 31. fxg6 hxg6 32. Rxc6 Qxc4 33. R6xc4 Rxb4 34. Rxb4 Rxb4 35. Kf2 Kf7 36. Kg3 Rb2 37. Rd1 g5 38. Rf1+ Kg6 39. Rf2 Rb1 40. Rg2 Rf1 41. Rf2 Rg1+ 42. Kh3 Rd1 43. Kg3 Rg1+ 44. Rg2 Rf1 1/2-1/2

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.28"]
[Round "7"]
[White "Dekker, Jasper"]
[Black "Abma, Klaas"]
[Result "1/2-1/2"]
[ECO "C05"]
[WhiteElo "1700"]
[BlackElo "1945"]
[PlyCount "33"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. Ngf3 Nc6 7. Nb3 cxd4 8. Nfxd4 Nc5 9. c3 Qb6 10. Be3 Nxb3 11. Qxb3 Bc5 12. Qxb6 Bxb6 13. Bb5 Bd7 14. Nc2 Bxe3 15. Bxc6 Bxf4 16. Bxd7+ Kxd7 17. 0-0 1/2-1/2

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.24"]
[Round "4"]
[White "Dekker, Jasper"]
[Black "De Boer, Sake Jan"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1700"]
[BlackElo "1524"]
[PlyCount "55"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. 0-0 cxd4 8. cxd4 Nge7 9. Nc3 Nxd4 10. Nxd4 Qxd4 11. Nb5 Qxe5 12. Re1 Qb8 13. Qf3 e5 14. Rxe5 Qxe5 15. Bf4 Qxb2 16. Nd6+ Kd8 17. Nxf7+ Ke8 18. Nd6+ Kd8 19. Rb1 Qf6 20. Nxb7+ Ke8 21. Nd6+ Kd8 22. h4 h6 23. Nf7+ Ke8 24. Nxh8 g6 25. Re1 Qxh8 26. Qxd5 Rc8 27. Bxg6+ Kd8 28. Qa5+ 1-0

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.22"]
[Round "1"]
[White "Khudovekov, Stanislav"]
[Black "Dekker, Jasper"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2084"]
[BlackElo "1700"]
[PlyCount "77"]
[EventDate "2017.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 d6 6. Nge2 Nc6 7. 0-0 a6 8. d3 Rb8 9. a4 Bd7 10. h3 e5 11. Nd5 Nxd5 12. cxd5 Nb4 13. Qb3 c5 14. f4 b5 15. a5 Qe7 16. f5 Rfc8 17. Bd2 gxf5 18. exf5 f6 19. g4 Kh8 20. Ng3 Be8 21. Rac1 Bf7 22. Bxb4 cxb4 23. Qxb4 Bh6 24. Rc6 Rxc6 25. dxc6 Be3+ 26. Kh1 Bc5 27. Qc3 d5 28. Rc1 Bd6 29. Qb3 e4 30. d4 Bc7 31. Nf1 Qd6 32. Qc3 Re8 33. Qe3 Bxa5 34. Qg3 Qxg3 35. Nxg3 Bc7 36. Ne2 b4 37. Kg1 Kg7 38. Kf2 Rc8 39. Ke3 1/2-1/2

