[Event "Brasschaat op"]
[Site "Brasschaat"]
[Date "2023.08.27"]
[Round "9"]
[White "Beukema, Constantijn"]
[Black "Metzdorf, Matteo"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2005"]
[BlackElo "1985"]
[PlyCount "70"]
[EventDate "2023.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. 0-0 e6 7. d3 Nge7 8. Be3 Nd4 9. Qd2 0-0 10. f4 Rb8 11. Nd1 b5 12. c3 Nxe2+ 13. Qxe2 b4 14. d4 bxc3 15. bxc3 cxd4 16. cxd4 Qb6 17. Qf2 Ba6 18. Re1 d5 19. Nc3 dxe4 20. Nxe4 Nf5 21. Nc5 Rfd8 22. Red1 Bc4 23. Be4 Nxe3 24. Qxe3 Qb2 25. d5 exd5 26. Rab1 Qxa2 27. Rxb8 Rxb8 28. Bf3 d4 29. Qe7 Qa3 30. Qc7 Qe3+ 31. Kg2 Rb2+ 32. Kh3 Qxf3 33. Qd8+ Bf8 34. Nd7 Be6+ 35. Kh4 Qh5# 0-1

[Event "Brasschaat op"]
[Site "Brasschaat"]
[Date "2023.08.25"]
[Round "7"]
[White "Van Mechelen, Jan"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2144"]
[BlackElo "2005"]
[PlyCount "74"]
[EventDate "2023.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bf4 e6 4. e3 Nc6 5. a3 h6 6. d5 exd5 7. Nxd5 d6 8. Bc4 g5 9. Bg3 h5 10. h4 g4 11. Ne2 Bg7 12. c3 Ne5 13. Ba2 Ne4 14. Ndf4 c6 15. Be6 Bxe6 16. Nxe6 Qd7 17. Nxg7+ Qxg7 18. Bf4 0-0-0 19. Ng3 Nxg3 20. Bxg3 Rhe8 21. Qc2 Qf7 22. 0-0-0 d5 23. Qa4 a6 24. Qd4 Ng6 25. Rhe1 b5 26. f3 Kb7 27. Bf2 Ne5 28. f4 Nd7 29. e4 fxe4 30. Qa7+ Kc8 31. g3 Qf5 32. Qxa6+ Kc7 33. Qa5+ Kd6 34. Be3 Ke6 35. Qa6 Rc8 36. a4 bxa4 37. Rd4 Nc5 0-1

[Event "Brasschaat op"]
[Site "Brasschaat"]
[Date "2023.08.24"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Godde, Matthias"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2005"]
[BlackElo "2065"]
[PlyCount "47"]
[EventDate "2023.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. d3 e5 7. Be3 Nge7 8. 0-0 0-0 9. Qd2 Nd4 10. f4 exf4 11. Nxf4 Ne6 12. Nfd5 Nxd5 13. exd5 Nd4 14. Bg5 Qb6 15. Rab1 Bf5 16. Ne4 c4 17. Be3 Bxe4 18. dxe4 Bh6 19. Rf4 Bxf4 20. gxf4 c3 21. Qxd4 Qxd4 22. Bxd4 cxb2 23. Rxb2 b6 24. e5 1-0

[Event "Brasschaat op"]
[Site "Brasschaat"]
[Date "2023.08.23"]
[Round "5"]
[White "Michiels, Lode"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "A85"]
[BlackElo "2005"]
[PlyCount "216"]
[EventDate "2023.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 f5 2. Bf4 Nf6 3. e3 g6 4. c4 Bg7 5. Nf3 0-0 6. Nc3 d6 7. Be2 c6 8. 0-0 Nh5 9. Bg3 Nxg3 10. hxg3 Na6 11. Qb3 Nc7 12. Rfd1 Qe8 13. c5+ d5 14. a4 Bf6 15. a5 Kg7 16. Qa2 g5 17. b4 g4 18. Ne1 a6 19. Nd3 h5 20. f4 Rh8 21. Kf2 h4 22. Rh1 Rh5 23. gxh4 Bxh4+ 24. g3 Bf6 25. Kg2 Bd7 26. Rxh5 Qxh5 27. Rh1 Qf7 28. Qb1 Qe6 29. Ne5 Bxe5 30. fxe5 Qg6 31. Rh4 Ne6 32. Nd1 Rh8 33. Rxh8 Kxh8 34. Nf2 Kg7 35. Nd3 Qh6 36. Qg1 Qh3+ 37. Kf2 Ng5 38. Bf1 Ne4+ 39. Ke1 Qxg3+ 40. Qxg3 Nxg3 41. Bg2 Kh6 42. Kf2 Nh5 43. Nf4 Ng7 44. Kg3 Kg5 45. Bh1 Ne8 46. Bg2 e6 47. Bf1 Ng7 48. Bg2 Be8 49. Bf1 Bf7 50. Be2 Ne8 51. Bd1 Nc7 52. Be2 Be8 53. Bf1 Bh5 54. Be2 Bf7 55. Bf1 Bg8 56. Be2 Ne8 57. Bf1 Ng7 58. Be2 Ne8 59. Bf1 Nc7 60. Be2 Bf7 61. Bf1 Be8 62. Be2 Bd7 63. Bf1 Nb5 64. Bxb5 axb5 65. Ne2 f4+ 66. Nxf4 Kf5 67. Ng2 Bc8 68. Kh4 Ke4 69. Kxg4 Kd3 70. Kg5 Kc3 71. Ne1 Kxb4 72. Nd3+ Kc3 73. Nc1 Kb2 74. Nd3+ Kc2 75. Nb4+ Kb3 76. Nd3 Kc4 77. Nc1 Kb4 78. Kf6 Kxa5 79. Ke7 b6 80. Kd8 Ba6 81. Kd7 bxc5 82. dxc5 Kb4 83. Kxc6 Kc4 84. Kb6 Bc8 85. c6 b4 86. Kc7 Ba6 87. Kb6 Bb5 88. Kb7 d4 89. c7 Bd7 90. c8Q+ Bxc8+ 91. Kxc8 d3 92. Nxd3 Kxd3 93. Kd7 b3 94. Kxe6 b2 95. Kf7 b1Q 96. e6 Kxe3 97. e7 Qf5+ 98. Kg7 Qe6 99. Kf8 Qf6+ 100. Ke8 Ke4 101. Kd7 Qd4+ 102. Kc7 Qe5+ 103. Kd7 Qd5+ 104. Kc7 Qe6 105. Kd8 Qd6+ 106. Ke8 Kf5 107. Kf7 Qf6+ 108. Ke8 Ke6 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.10"]
[White "Godzwon, Iwo"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2386"]
[BlackElo "1652"]
[PlyCount "95"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Kennemer Combinatie"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Nc3 Be7 8. Rxe5 0-0 9. Bd3 Bf6 10. Re3 g6 11. Nd5 Bd4 12. Ne7+ Kg7 13. Re2 b5 14. Nxc8 Rxc8 15. c3 Bb6 16. Bc2 c5 17. d3 Qf6 18. g3 Rfe8 19. Bf4 Nf5 20. Qd2 Rxe2 21. Qxe2 Qe6 22. Qxe6 fxe6 23. a4 b4 24. a5 Bc7 25. Bd2 Bd6 26. Ba4 Rc7 27. a6 Kf7 28. Rc1 bxc3 29. bxc3 Ne7 30. Rb1 Nc6 31. Kf1 Ke8 32. Be3 Kd8 33. Ke2 Kc8 34. h4 Nb8 35. Bb5 Be5 36. d4 cxd4 37. cxd4 Bd6 38. Bd3 Nc6 39. h5 gxh5 40. Rh1 Nb4 41. Bxh7 Nxa6 42. Rxh5 Nb4 43. Be4 Nd5 44. Bxd5 exd5 45. g4 Bb4 46. g5 d6 47. g6 Rg7 48. Rh8+ 1-0

[Event "BEL-chT 2122"]
[Site "Belgium"]
[Date "2022.05.01"]
[Round "5.7"]
[White "Hainke, Guntram"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2300"]
[BlackElo "1775"]
[PlyCount "35"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "KSK Rochade"]
[BlackTeam "Brasschaat"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. Nf3 Nc6 5. e4 Nf6 6. Nc3 e6 7. Bb5 Bd7 8. 0-0 Bb4 9. Bd3 Bxc3 10. bxc3 Qe7 11. a4 0-0-0 12. Ba3 Qe8 13. Qb3 Na5 14. Qb4 b6 15. Rfb1 Bxa4 16. Qxa5 bxa5 17. Ba6+ Kd7 18. Ne5# 1-0

[Event "BEL-chT 2122"]
[Site "Belgium"]
[Date "2021.10.24"]
[Round "1.8"]
[White "Beukema, Constantijn"]
[Black "Tarassiouk, Andrei"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "1882"]
[BlackElo "2005"]
[PlyCount "106"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Brasschaat"]
[BlackTeam "KGSRL"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. Be2 0-0 8. f4 d6 9. 0-0 Bd7 10. Nxc6 Bxc6 11. e5 dxe5 12. fxe5 Nd5 13. Bd4 e6 14. Nxd5 Bxd5 15. Bc5 Qg5 16. Bf3 Rfd8 17. Qe2 Qxe5 18. Qxe5 Bxe5 19. c3 b6 20. Be3 Kg7 21. Rae1 f6 22. Bxd5 Rxd5 23. Bf4 Bxf4 24. Rxf4 e5 25. Rfe4 Rd2 26. R1e2 Rxe2 27. Rxe2 Rd8 28. Kf2 Kf7 29. g4 Ke6 30. Ke3 f5 31. h3 e4 32. gxf5+ gxf5 33. Rg2 Rd3+ 34. Ke2 Rxh3 35. Rg7 Ke5 36. Rxa7 Rh2+ 37. Ke1 Rxb2 38. Rxh7 Rxa2 39. Rb7 Kf4 40. Rxb6 Ke3 41. Kf1 Rc2 42. Rb3 Kf3 43. c4+ e3 44. Kg1 Rxc4 45. Ra3 f4 46. Rb3 Rd4 47. Ra3 Ke2 48. Ra2+ Rd2 49. Ra8 f3 50. Rf8 f2+ 51. Kh1 Rd1+ 52. Kh2 f1Q 53. Rf3 Qg1+ 0-1

[Event "Basel op"]
[Site "Basel"]
[Date "2020.01.03"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Lornye, Pylyp"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "1826"]
[BlackElo "2267"]
[PlyCount "46"]
[EventDate "2020.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 0-0 6. e5 dxe5 7. dxe5 Qxd1+ 8. Nxd1 Ng4 9. Bf4 Nc6 10. e6 Bxe6 11. Bxe6 fxe6 12. Bg3 Nge5 13. Nxe5 Bxe5 14. Bxe5 Nxe5 15. Ne3 Rad8 16. Ke2 Rd7 17. Rad1 Rfd8 18. Rxd7 Rxd7 19. Rd1 Kf7 20. Rc1 h5 21. b4 Nc6 22. c3 b5 23. a4 Kf6 1/2-1/2

[Event "Wch U14"]
[Site "Mumbai"]
[Date "2019.10.02"]
[Round "1"]
[White "Petkov, Momchil"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2333"]
[BlackElo "1864"]
[PlyCount "73"]
[EventDate "2019.10.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bg5 d6 6. e3 c5 7. d5 h6 8. Bh4 g5 9. Bg3 Nh5 10. Nd2 Nxg3 11. hxg3 Nd7 12. Be2 Nf6 13. Qc2 Ng4 14. Nf1 f5 15. f3 Ne5 16. f4 Ng6 17. 0-0-0 Qa5 18. fxg5 hxg5 19. Rh5 g4 20. Bxg4 Ne5 21. Be2 Bd7 22. g4 Be8 23. Rg5 fxg4 24. Ng3 Rf6 25. Nf5 Bg6 26. Nxe7+ Kf7 27. Nxg6 Nxg6 28. Bxg4 Bh6 29. Rxg6 Rxg6 30. Bh5 Bxe3+ 31. Kb1 Rag8 32. Qf5+ Kg7 33. Qxg6+ Kh8 34. Qf6+ Kh7 35. Qe7+ Kh6 36. Qxe3+ Kxh5 37. Rh1+ 1-0

[Event "Brasschaat op 19th"]
[Site "Brasschaat"]
[Date "2019.08.24"]
[Round "8"]
[White "Beukema, Constantijn"]
[Black "De Weerd, Jan"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1879"]
[BlackElo "2085"]
[PlyCount "122"]
[EventDate "2019.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bd3 Bg4 6. h3 Bxf3 7. Qxf3 Nbd7 8. Be3 c6 9. 0-0-0 Qa5 10. h4 h5 11. Bc4 e5 12. Bg5 0-0 13. d5 c5 14. Bb5 Qb6 15. Qd3 a6 16. Bxd7 Nxd7 17. Nb1 c4 18. Qe2 f5 19. f3 Rac8 20. Be3 Qa5 21. a3 fxe4 22. fxe4 Nf6 23. Bd2 Qc5 24. Bb4 Qc7 25. Nd2 a5 26. Bc3 Bh6 27. Kb1 Ng4 28. Nf3 b5 29. Bd2 Bxd2 30. Qxd2 Rf4 31. Qe2 c3 32. g3 Rf6 33. Ng5 Rf2 34. Qd3 cxb2 35. Rd2 Rxd2 36. Qxd2 Qc3 37. Qxc3 Rxc3 38. Kxb2 Rxg3 39. Rf1 Rg2 40. Rf7 Ne3 41. Rf6 Rxc2+ 42. Kb1 Rh2 43. Rxd6 Rxh4 44. Rxg6+ Kf8 45. d6 Rh1+ 46. Ka2 Rd1 47. Rh6 Nc4 48. d7 Rxd7 49. Rh8+ Ke7 50. Rh7+ Kd6 51. Rh6+ Kc5 52. Ne6+ Kb6 53. Rxh5 Rd2+ 54. Kb3 Rd3+ 55. Kc2 Rxa3 56. Rh6 a4 57. Nd8+ Kc5 58. Nc6 Re3 59. Ne7 Re2+ 60. Kc3 b4+ 61. Kd3 Rd2# 0-1

[Event "Brasschaat op 19th"]
[Site "Brasschaat"]
[Date "2019.08.18"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Docx, Stefan"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1879"]
[BlackElo "2433"]
[PlyCount "40"]
[EventDate "2019.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. 0-0 Nf6 8. Qe2 Bg4 9. e5 dxe5 10. Rd1 Qc7 11. Ng5 e6 12. f3 Bh5 13. Bxe6 Bc5+ 14. Kh1 Nd4 15. Rxd4 Bxd4 16. Bf4 0-0 17. Nd5 Nxd5 18. Bxd5 h6 19. Rc1 Qb6 20. Bxe5 hxg5 0-1

[Event "Wch U14"]
[Site "Porto Carras"]
[Date "2018.10.20"]
[Round "1"]
[White "Beukema, Constantijn"]
[Black "Boyer, Mahel"]
[Result "0-1"]
[ECO "C09"]
[WhiteElo "1820"]
[BlackElo "2227"]
[PlyCount "106"]
[EventDate "2018.10.20"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GRE"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Qe7+ 7. Be2 Qc7 8. 0-0 Nf6 9. Re1 Be6 10. dxc5 Bxc5 11. Nb3 Bb6 12. c4 dxc4 13. Bxc4 0-0 14. Bxe6 fxe6 15. Be3 e5 16. Qe2 Rae8 17. Rad1 Bxe3 18. Qxe3 e4 19. Nfd4 Ne5 20. Rc1 Qb8 21. h3 Nd3 22. Nc5 Nxe1 23. Rxe1 Qe5 24. Qb3+ Qd5 25. Qxd5+ Nxd5 26. Nce6 Rf6 27. Rxe4 Nc7 28. Nc5 Rxe4 29. Nxe4 Rb6 30. Nb3 Nd5 31. f3 Nb4 32. Nc1 Rc6 33. Nc3 Nd5 34. N1e2 Nxc3 35. Nxc3 Rb6 36. b3 Rc6 37. Nb5 Rc2 38. a4 Rb2 39. Nd4 Rd2 40. Ne6 b6 41. Nc7 Rd3 42. b4 Ra3 43. Kf2 Rxa4 44. b5 Rc4 45. Na6 Rc2+ 46. Kg3 Rd2 47. Nb8 Rb2 48. Nc6 Rxb5 49. Nxa7 Rc5 50. Kf4 Kf7 51. Ke4 Ke6 52. f4 Kd7 53. g4 Ra5 0-1

[Event "Brasschaat op 18th"]
[Site "Brasschaat"]
[Date "2018.08.26"]
[Round "9"]
[White "Engelaer, Maurice"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "C25"]
[WhiteElo "1915"]
[BlackElo "1758"]
[PlyCount "76"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nc3 Bc5 4. Qg4 g6 5. Qf3 Nf6 6. Nd5 Nxd5 7. Bxd5 Qe7 8. Ne2 Nd4 9. Nxd4 Bxd4 10. 0-0 d6 11. c3 Bb6 12. a4 c6 13. a5 cxd5 14. axb6 dxe4 15. Qxe4 a6 16. d4 0-0 17. Re1 f5 18. Qc2 Qf6 19. Qb3+ Be6 20. d5 Bd7 21. Qb4 f4 22. f3 Rfc8 23. b3 Rc5 24. c4 a5 25. Qd2 a4 26. Ba3 Rcc8 27. Qa2 axb3 28. Qxb3 Ra4 29. Bb4 Rxa1 30. Rxa1 e4 31. Bc3 Qf5 32. fxe4 Qxe4 33. Re1 Qd3 34. Qb2 Re8 35. Rxe8+ Bxe8 36. Bh8 Qe3+ 37. Kf1 Qd3+ 38. Kg1 Qe3+ 1/2-1/2

[Event "BEL-chT 1718"]
[Site "Belgium"]
[Date "2018.04.29"]
[Round "11.8"]
[White "Hautot, Stephane"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2359"]
[BlackElo "1871"]
[PlyCount "46"]
[EventDate "2017.09.24"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Wirtzfeld"]
[BlackTeam "Brasschaat"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Be3 0-0 9. Nxc6 bxc6 10. Bxc5 Nxc5 11. Bxc6 Rb8 12. Qxd5 Qe7 13. 0-0 Rd8 14. Qf3 Qxe5 15. Nc3 Rxb2 16. Nd5 Rxc2 17. Rfe1 Qd6 18. Ne7+ Kf8 19. Nxc8 Rxc8 20. Qf5 Rd8 21. Qxh7 Re2 22. Rxe2 Qd1+ 23. Re1 Qxa1 1-0

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.30"]
[Round "9"]
[White "Vandeputte, Samuel"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1576"]
[BlackElo "1811"]
[PlyCount "44"]
[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. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. h3 0-0 6. e3 a6 7. Be2 b6 8. 0-0 c5 9. Qd2 Bb7 10. Rad1 e6 11. Ne5 Nc6 12. Bf3 Nd7 13. Nxd7 Qxd7 14. Ne2 Qe7 15. c3 Rac8 16. Rfe1 Rfd8 17. e4 dxe4 18. Bxe4 cxd4 19. cxd4 Bxd4 20. Nxd4 Rxd4 21. Qe3 Rxd1 22. Rxd1 b5 1/2-1/2

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.29"]
[Round "8"]
[White "Beukema, Constantijn"]
[Black "Schleipfenbauer, Bent"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1811"]
[BlackElo "1968"]
[PlyCount "86"]
[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. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 e6 6. Nc3 Nxc3 7. bxc3 d6 8. Nf3 Nc6 9. Bb5 Qa5 10. Qb3 Bd7 11. Bd2 Qc7 12. exd6 Bxd6 13. 0-0 a6 14. Bxc6 Bxc6 15. Ne5 Bxe5 16. dxe5 Qxe5 17. Rae1 Qd5 18. Qxd5 Bxd5 19. f4 Bxa2 20. f5 0-0 21. f6 Rfd8 22. Be3 Rac8 23. Bd4 g6 24. Rf3 Rd5 25. Rh3 h5 26. Re4 Bb1 27. Re1 Bf5 28. Rhe3 Rcd8 29. Kf2 g5 30. Kg3 Rxd4 31. cxd4 Rxd4 32. Rb3 Rf4 33. h3 h4+ 34. Kh2 Be4 35. Re2 Bd5 36. Rb6 Kh7 37. g3 hxg3+ 38. Kxg3 Kg6 39. Rd2 Rf3+ 40. Kg4 Rb3 41. Rd6 Be4 42. Rf2 Bf5+ 43. Rxf5 exf5# 0-1

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.28"]
[Round "7"]
[White "Jacobse, Justin"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1907"]
[BlackElo "1811"]
[PlyCount "64"]
[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 d5 2. Nf3 Nf6 3. e3 c5 4. Be2 Nc6 5. b3 e6 6. d3 Be7 7. 0-0 0-0 8. Ne5 Qc7 9. Bb2 Nd7 10. d4 f6 11. Ng4 cxd4 12. exd4 f5 13. Ne5 Nf6 14. Nd2 Nxe5 15. fxe5 Ne4 16. Nxe4 dxe4 17. c4 Bd7 18. a4 Rad8 19. Qd2 Bc6 20. Rad1 Qb6 21. Qc2 f4 22. Bg4 f3 23. Bxe6+ Kh8 24. c5 Qa5 25. gxf3 exf3 26. Bc3 Qc7 27. Be1 Bd5 28. Bxd5 Rxd5 29. Bf2 Qd7 30. Kh1 Qh3 31. Bg3 Rxd4 32. Rxf3 Rxf3 0-1

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.27"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Oord, Raymon"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1811"]
[BlackElo "1873"]
[PlyCount "91"]
[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 e5 2. Nf3 Nf6 3. Nc3 d6 4. Bc4 Be7 5. d4 Nc6 6. dxe5 Nxe5 7. Nxe5 dxe5 8. 0-0 c6 9. f4 Qd4+ 10. Qxd4 exd4 11. e5 dxc3 12. exf6 Bxf6 13. Re1+ Kd8 14. b3 Be6 15. Bxe6 fxe6 16. Rxe6 Re8 17. Rxe8+ Kxe8 18. Ba3 Rd8 19. Re1+ Kf7 20. Kf2 Rd2+ 21. Re2 Rd1 22. Bc5 b6 23. Be3 Rd5 24. a4 c5 25. Kf3 c4 26. Ke4 Rd1 27. bxc4 Ra1 28. Bd4 Rxa4 29. Bxf6 Kxf6 30. Kd3 Ra3 31. g4 h6 32. h4 Ra1 33. g5+ Kf5 34. Re7 hxg5 35. fxg5 g6 36. Kxc3 Ra5 37. Rg7 Ra1 38. Kb2 Ra4 39. Kb3 Ra1 40. Kc3 Ra5 41. Kd4 Ra4 42. Kd5 Ra5+ 43. Kd4 Ra4 44. Kd5 Ra5+ 45. Kd4 Ra4 46. Kd5 1/2-1/2

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.26"]
[Round "5"]
[White "Johnson, Matthew"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2055"]
[BlackElo "1811"]
[PlyCount "48"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb3 Ne4 8. cxd4 Bb4+ 9. Bd2 Nxd2 10. Nbxd2 Bg4 11. Ba4 0-0 12. Bxc6 bxc6 13. a3 Bxd2+ 14. Qxd2 f6 15. Qe3 Bxf3 16. gxf3 fxe5 17. dxe5 Qe7 18. Rg1 Rf5 19. f4 Raf8 20. 0-0-0 Rxf4 21. Rd4 Qc5+ 22. Kb1 Qxd4 23. Qc1 Rxf2 24. e6 Rxb2+ 0-1

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.24"]
[Round "4"]
[White "Beukema, Constantijn"]
[Black "Cheng, Di"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "1811"]
[BlackElo "1240"]
[PlyCount "45"]
[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 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Nxd4 Bd7 7. Bxc6 bxc6 8. Qf3 Bg4 9. Qd3 Qd7 10. Qa6 c5 11. Nc6 Be7 12. Nxe7 Kxe7 13. Bg5 Rhe8 14. f3 Be6 15. e5 Kf8 16. 0-0-0 Ng8 17. exd6 Reb8 18. dxc7 Qxc7 19. Qd6+ Qxd6 20. Rxd6 Rb6 21. Rhd1 f6 22. Be3 Rab8 23. Bxc5 1-0

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.23"]
[Round "3"]
[White "Beukema, Constantijn"]
[Black "Vermeulen, Frans"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1811"]
[BlackElo "1894"]
[PlyCount "66"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 11. a3 Bd6 12. Re1 h6 13. Bh4 Rb8 14. b3 Bg4 15. f3 Bh5 16. Bf2 Re8 17. Qd2 Qc7 18. h3 Bf4 19. Be3 Rxe3 20. Rxe3 Qb6 21. Rae1 Re8 22. Nd1 Ne4 23. Nf2 Bg6 24. Nxe4 dxe4 25. Bxe4 Bxe4 26. Qf2 Bxe3 27. Rxe3 Qd4 28. c3 Qd5 29. Qe1 Qc5 30. Qf2 f5 31. g4 Rf8 32. b4 Qd6 33. Qd2 Qf4 0-1

[Event "Groningen op-B 55th"]
[Site "Groningen"]
[Date "2017.12.23"]
[Round "2"]
[White "Jelic, Bruno"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2059"]
[BlackElo "1811"]
[PlyCount "128"]
[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. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nxd5 10. cxd5 c6 11. Bc4 cxd5 12. Bxd5 Nc6 13. Ng5 Rd7 14. 0-0 h6 15. Bxc6 bxc6 16. Nf3 Ba6 17. Re1 Rad8 18. Be3 f5 19. Rac1 fxe4 20. Nh4 Kh7 21. Rxc6 Rd1 22. Rc1 Rxe1+ 23. Rxe1 Bc8 24. g3 g5 25. Ng2 Bg4 26. h4 gxh4 27. Nxh4 Bf6 28. Ng2 Bf3 29. Bxa7 Ra8 30. Be3 Rxa2 31. Rb1 Ra5 32. b4 Rb5 33. Bc5 Bg5 34. Ne1 Be2 35. Nc2 Bd3 36. Rb2 Bc1 37. Ra2 Rb7 38. Ne1 Kg6 39. Ng2 Bg5 40. Rb2 Kf5 41. Be3 Ke6 42. Bxg5 hxg5 43. Ne3 Rb8 44. Kg2 Ba6 45. Rc2 Bb5 46. Rc5 Be2 47. Rc6+ Kd7 48. Rg6 Bf3+ 49. Kf1 Rxb4 50. Ke1 Rb1+ 51. Kd2 Rb2+ 52. Nc2 g4 53. Kc3 Rb8 54. Ne3 Ra8 55. Nxg4 Bxg4 56. Rxg4 Rf8 57. Kd2 Rxf2+ 58. Ke3 Rf1 59. Kxe4 Re1+ 60. Kd5 Ke7 61. Re4 Rxe4 62. Kxe4 Kf6 63. g4 Kg5 64. Kxe5 Kxg4 1/2-1/2

[Event "Brasschaat op 17th"]
[Site "Brasschaat"]
[Date "2017.08.22"]
[Round "4"]
[White "Verdonck, Peter"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C78"]
[BlackElo "1780"]
[PlyCount "39"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 Bc5 6. 0-0 d6 7. c3 0-0 8. Bg5 b5 9. Bc2 h6 10. Bh4 Bg4 11. h3 Bh5 12. g4 Bg6 13. Nbd2 h5 14. Nh2 b4 15. Qf3 bxc3 16. bxc3 d5 17. gxh5 dxe4 18. Nxe4 Bxh5 19. Nxf6+ Qxf6 20. Qxh5 1-0

[Event "Brasschaat op 17th"]
[Site "Brasschaat"]
[Date "2017.08.20"]
[Round "2"]
[White "Eerens, Pim"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2134"]
[BlackElo "1780"]
[PlyCount "65"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 0-0 6. Bd3 Nbd7 7. b4 e5 8. 0-0 Re8 9. Qb3 exd4 10. cxd4 c6 11. Re1 Nb6 12. a4 Be6 13. Qc2 d5 14. e5 Nfd7 15. Nb3 Nc4 16. Bxc4 dxc4 17. Na5 Qb6 18. Nxc4 Qxb4 19. Nd6 Reb8 20. Bd2 Qb6 21. a5 Qc7 22. Bb4 Bf8 23. Nb5 Qd8 24. Bxf8 Qxf8 25. Nc7 Bf5 26. Qd2 b6 27. Nxa8 Rxa8 28. d5 cxd5 29. Qxd5 Rd8 30. axb6 Nxb6 31. Qa5 Rd7 32. h3 Qa8 33. Qxb6 1-0

[Event "Vlissingen HZ op 21st"]
[Site "Vlissingen"]
[Date "2017.08.05"]
[Round "1"]
[White "Cordes, Hans Joerg"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "E80"]
[WhiteElo "2221"]
[BlackElo "1780"]
[PlyCount "41"]
[EventDate "2017.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. d5 0-0 7. Bg5 Nbd7 8. Bd3 h6 9. Be3 Nh5 10. Nge2 Nc5 11. Bc2 f5 12. exf5 Bxf5 13. 0-0 Qh4 14. g4 Bxc2 15. Qxc2 Nf6 16. Qxg6 e4 17. Ng3 exf3 18. Qxg7+ Kxg7 19. Nf5+ Kh7 20. Nxh4 Nxg4 21. Bxc5 1-0

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.09"]
[Round "9"]
[White "Beukema, Constantijn"]
[Black "Hajenius, Willem"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1695"]
[BlackElo "1934"]
[PlyCount "45"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Nc6 6. Bc4 Qc7 7. Qe2 Nf6 8. 0-0 Ng4 9. Nd5 exd5 10. exd5+ Ne7 11. Re1 d6 12. Bf4 Bd7 13. Nd4 Ne5 14. Nb5 Bxb5 15. Bxb5+ Kd8 16. Rac1 Qb6 17. Bxe5 dxe5 18. d6 Ng6 19. d7 Bc5 20. Red1 f5 21. Rd5 Nf4 22. Qxe5 Qxb5 23. Rdxc5 1-0

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.07"]
[Round "7"]
[White "Beukema, Constantijn"]
[Black "Gitu, Paula Alexandra"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1695"]
[BlackElo "1987"]
[PlyCount "54"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. 0-0 c6 7. Bg5 0-0 8. Qd2 b5 9. Bd3 a6 10. Rad1 Bb7 11. dxe5 Nxe5 12. Nxe5 dxe5 13. a4 Qc7 14. axb5 axb5 15. f4 b4 16. Ne2 Bc5+ 17. Kh1 Ng4 18. fxe5 Nf2+ 19. Rxf2 Bxf2 20. Nf4 Qxe5 21. Qxf2 Qxg5 22. g3 c5 23. b3 Qe5 24. Qe1 Rfe8 25. Kg1 Rad8 26. Kf2 Qd4+ 27. Kf3 Bxe4+ 0-1

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.06"]
[Round "6"]
[White "Boons, Bert"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1968"]
[BlackElo "1695"]
[PlyCount "91"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. Bb3 d6 7. Nbd2 Bb6 8. Nf1 Ng4 9. Be3 Nxe3 10. Nxe3 Be6 11. Bxe6 fxe6 12. Nc4 d5 13. Nxb6 axb6 14. Qe2 d4 15. 0-0 Qf6 16. Qd2 Qf4 17. Qxf4 Rxf4 18. Rfc1 Rd8 19. a3 Rf7 20. Kf1 Rfd7 21. cxd4 exd4 22. b4 Re7 23. Nd2 Kf7 24. Ke2 e5 25. Nc4 g5 26. Rab1 Ra8 27. Rb3 Ke6 28. Nd2 h6 29. Nf1 Rf8 30. Ng3 Rf4 31. Nf5 Rxf5 32. exf5+ Kxf5 33. Rb2 Ke6 34. f3 Kd6 35. h4 Rg7 36. hxg5 hxg5 37. Rbc2 Na7 38. a4 b5 39. a5 Nc6 40. a6 Nxb4 41. axb7 Rg8 42. Rxc7 Rb8 43. Rh7 Nc6 44. Rh6+ Kd5 45. Rcxc6 Rxb7 46. Rhd6# 1-0

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.05"]
[Round "5"]
[White "Mollekens, Roeland"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1977"]
[BlackElo "1695"]
[PlyCount "133"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 Re8 9. Re1 d6 10. Bf4 Bg4 11. f3 Bh5 12. a3 Bc5+ 13. Kh1 Bg6 14. Qd2 Qd7 15. Bc4 d5 16. exd5 Rxe1+ 17. Rxe1 Rd8 18. Ne4 Nxe4 19. fxe4 Bxe4 20. Rxe4 cxd5 21. Bxd5 Qxd5 22. Qxd5 Rxd5 23. Re8+ Bf8 24. Kg1 Rc5 25. c3 f6 26. Rc8 Rf5 27. Be3 c5 28. b4 cxb4 29. axb4 Kf7 30. Bxa7 Bd6 31. Bb8 Be7 32. g3 Ke6 33. Ba7 Rd5 34. Kg2 Rd2+ 35. Bf2 Rc2 36. b5 Kd5 37. Kf3 Bb4 38. b6 Bd6 39. b7 Rb2 40. c4+ Ke6 41. c5 Rb3+ 42. Kg2 Bxc5 43. b8Q Rxb8 44. Rxb8 Bxf2 45. Kxf2 h5 46. h3 g5 47. g4 Kf7 48. Rb5 Kg6 49. Rf5 hxg4 50. hxg4 Kf7 51. Ke3 Ke6 52. Kd4 Kf7 53. Kd5 Ke7 54. Rf1 Kf7 55. Kd6 Kg6 56. Ke6 f5 57. gxf5+ Kh5 58. Rh1+ Kg4 59. f6 Kg3 60. Kf5 Kg2 61. Ra1 Kf3 62. Ra3+ Kg2 63. Kg4 Kf2 64. f7 Ke2 65. f8R Kd2 66. Rf2+ Ke1 67. Rh2 1-0

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.04"]
[Round "4"]
[White "Beukema, Constantijn"]
[Black "Dauw, Sterre"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1695"]
[BlackElo "1846"]
[PlyCount "50"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 Nc6 6. Bc4 a6 7. 0-0 Nf6 8. Qe2 Bg4 9. Bf4 Bxf3 10. Qxf3 e6 11. Rfd1 Qa5 12. Rac1 Be7 13. Bb3 Ne5 14. Qg3 Nh5 15. Qe3 Nxf4 16. Qxf4 Bg5 17. Qg3 Bxc1 18. Qxg7 Ng6 19. Rxd6 Qe5 20. Ba4+ b5 21. Rxa6 Qxg7 22. Rxa8+ Ke7 23. Ra7+ Kf6 24. Bxb5 Nh4 25. Be2 Qxg2# 0-1

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.03"]
[Round "3"]
[White "Beukema, Constantijn"]
[Black "Smet, Louis"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1695"]
[BlackElo "1917"]
[PlyCount "91"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 Nc6 5. Nf3 d6 6. 0-0 g6 7. Re1 Bg7 8. Bf4 Nf6 9. Nbd2 0-0 10. Nb3 Ng4 11. h3 Nge5 12. Bc2 Nc4 13. Rb1 Kh8 14. Qe2 N6e5 15. Nxe5 Nxe5 16. Rbd1 Qc7 17. Bh2 f5 18. f4 Nc6 19. e5 dxe5 20. fxe5 Be6 21. Kh1 b6 22. Nd4 Nxd4 23. cxd4 Rac8 24. Bb1 Rfd8 25. Rd2 Bh6 26. Rc2 Qd7 27. Rd1 Qd5 28. b3 Qa5 29. b4 Qxb4 30. Rxc8 Bxc8 31. d5 Qc5 32. d6 Be6 33. Bg1 Qa3 34. Rd3 Qb4 35. a3 Qh4 36. Bf2 Qg5 37. Qb2 exd6 38. exd6+ Kg8 39. Ba2 Bxa2 40. Qxa2+ Kf8 41. Qe6 Re8 42. Qd5 Qf6 43. d7 Rd8 44. Bd4 Qe7 45. Be5 Bg5 46. Bd6 1-0

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.02"]
[Round "2"]
[White "Engelaer, Maurice"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C30"]
[WhiteElo "1968"]
[BlackElo "1695"]
[PlyCount "66"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. f4 d6 5. Nf3 Nc6 6. d3 a6 7. f5 h6 8. Qe2 0-0 9. a3 b5 10. Ba2 Bb7 11. Nd5 Nd4 12. Nxf6+ Qxf6 13. Nxd4 Bxd4 14. c3 Ba7 15. h4 Kh7 16. Qh5 Qe7 17. Bg5 f6 18. Bd2 Rad8 19. Qf3 c6 20. g4 d5 21. g5 dxe4 22. dxe4 c5 23. gxh6 gxh6 24. Rg1 Rxd2 25. Kxd2 c4 26. Rg6 Rd8+ 27. Ke1 Rd3 28. Qh5 Re3+ 29. Kf1 Qf8 30. Rd1 Rd3 31. Rxd3 cxd3 32. Rxh6+ Qxh6 33. Bg8+ Kg7 0-1

[Event "BEL-ch op"]
[Site "Niel"]
[Date "2017.07.01"]
[Round "1"]
[White "Beukema, Constantijn"]
[Black "Mitran, Ovi"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1695"]
[BlackElo "1505"]
[PlyCount "51"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 b6 4. Nf3 Bb7 5. Bb5+ Nbd7 6. Nc3 Nxd5 7. Nxd5 Bxd5 8. Ne5 c6 9. Bxc6 Bxc6 10. Nxc6 Qc7 11. d5 g6 12. 0-0 Bg7 13. Re1 e6 14. dxe6 Ne5 15. exf7+ Kxf7 16. Nxe5+ Bxe5 17. Qd5+ Kf6 18. Bg5+ Kxg5 19. Rxe5+ Kh6 20. Rae1 Qxc2 21. R5e2 Rad8 22. Qe5 Qf5 23. Qc7 Rd7 24. Qc1+ Qg5 25. Qc3 Rf8 26. Qh3+ 1-0

[Event "Brasschaat op 15th"]
[Site "Brasschaat"]
[Date "2015.08.17"]
[Round "3"]
[White "Decleir, Walter"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1838"]
[BlackElo "1624"]
[PlyCount "73"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bg5 Bg7 5. e5 dxe5 6. dxe5 Qxd1+ 7. Rxd1 Ng4 8. h3 Nxe5 9. Nd5 Nbd7 10. Nxc7+ Kd8 11. Nxa8 b6 12. Be2 Bb7 13. Bf3 Nc6 14. Nxb6 axb6 15. c3 Kc7 16. Ne2 Nde5 17. Bxc6 Nxc6 18. 0-0 h6 19. Be3 Ra8 20. a3 Ba6 21. Rfe1 Bc4 22. Nd4 e5 23. Nxc6 Kxc6 24. f4 exf4 25. Bxf4 g5 26. Rd6+ Kc5 27. Bg3 f5 28. Rg6 Bf8 29. Bf2+ Kb5 30. a4+ Ka5 31. Bxb6+ Ka6 32. Bc5+ Kb7 33. Bxf8 Rxf8 34. Re7+ Kc8 35. Rxh6 g4 36. Reh7 Bd5 37. Rh8 1-0

[Event "Brasschaat op 15th"]
[Site "Brasschaat"]
[Date "2015.08.16"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Veldman, Pm"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "1624"]
[PlyCount "65"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 Bd6 4. Bc4 h6 5. dxe5 Bxe5 6. Qd5 Qf6 7. 0-0 d6 8. Bb5 Nge7 9. Qc4 Bd7 10. Nxe5 Nxe5 11. Bxd7+ Nxd7 12. Qxc7 Nc5 13. Nc3 Rc8 14. Qa5 Nc6 15. Qb5 0-0 16. Be3 a6 17. Qb6 Rfe8 18. Bxc5 dxc5 19. Qxc5 Nd4 20. Qd5 Nxc2 21. Qd2 Nxa1 22. Rxa1 Rcd8 23. Nd5 Qe5 24. f3 g5 25. Qb4 Rd7 26. Rb1 Re6 27. Qc5 Rc6 28. Qe3 h5 29. f4 gxf4 30. Nxf4 Rcd6 31. Qg3+ Kf8 32. Ng6+ Rxg6 33. Qxe5 1/2-1/2

[Event "Brasschaat op 15th"]
[Site "Brasschaat"]
[Date "2015.08.15"]
[Round "1"]
[White "Gorts, Sven"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1980"]
[BlackElo "1624"]
[PlyCount "87"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Bc4 Nf6 4. Nc3 Nc6 5. Nf3 Be7 6. 0-0 Bg4 7. h3 d5 8. exd5 Bc5+ 9. Kh2 Bxf3 10. Rxf3 Nd4 11. fxe5 Nxf3+ 12. Qxf3 Nd7 13. Qe4 0-0 14. d4 Be7 15. Qg4 f5 16. d6+ Kh8 17. dxe7 Qxe7 18. Qe2 Nb6 19. Bb3 Rad8 20. Be3 f4 21. Bf2 Qg5 22. Qf3 c6 23. Ne4 Qg6 24. Rf1 Nd5 25. c4 Nb6 26. a4 a5 27. Nd6 Qe6 28. Re1 h6 29. d5 cxd5 30. cxd5 Qe7 31. Bxb6 Rxd6 32. Bc5 Rfd8 33. Qe4 Qc7 34. Bc2 g6 35. Bxd6 Rxd6 36. exd6 Qxd6 37. Qe8+ Kg7 38. Re7+ Kf6 39. Re6+ Qxe6 40. Qxe6+ Kg7 41. Qe7+ Kh8 42. Bxg6 Kg8 43. Qf7+ Kh8 44. Qf8# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.16"]
[Round "8"]
[White "Beukema, Constantijn"]
[Black "De Haas, Tristan"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1553"]
[PlyCount "145"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bg5 0-0 7. Nxc6 bxc6 8. Bd3 d6 9. 0-0 Qe7 10. Qd2 Qe5 11. Bf4 Bxc3 12. bxc3 Qc5 13. Qe3 Qxc3 14. e5 Nd5 15. Qe4 f5 16. Qc4 Qxc4 17. Bxc4 Be6 18. Bd2 Kh8 19. Bb3 dxe5 20. Rfe1 e4 21. f3 e3 22. Bxe3 Nxe3 23. Rxe3 Bxb3 24. axb3 Rf6 25. Ra6 h6 26. Rc3 Rc8 27. Rcxc6 Rxc6 28. Rxc6 a5 29. Ra6 Rd8 30. Rxa5 Rd1+ 31. Kf2 Rd2+ 32. Kg3 Rxc2 33. Rxf5 c5 34. Rf4 Rc3 35. Rc4 Rxb3 36. Rxc5 Rb4 37. f4 Kh7 38. h3 g6 39. Rc7+ Kg8 40. h4 h5 41. Rc3 Kf7 42. Kf3 Kf6 43. Re3 Rb5 44. Rc3 Kf5 45. Ra3 Rc5 46. g3 Rb5 47. Ra6 Rb3+ 48. Kg2 Rb2+ 49. Kh3 Rb5 50. Ra8 Rb6 51. Rf8+ Rf6 52. Rxf6+ Kxf6 53. g4 Ke6 54. Kg3 Kf6 55. Kf3 Ke7 56. g5 Kf7 57. Ke3 Ke7 58. Ke4 Ke6 59. Kd4 Kd6 60. Kc4 Ke6 61. Kc5 Ke7 62. Kd5 Kd7 63. Ke5 Ke7 64. f5 gxf5 65. Kxf5 Kf7 66. g6+ Kg7 67. Kg5 Kg8 68. Kxh5 Kg7 69. Kg5 Kg8 70. Kf6 Kf8 71. g7+ Kg8 72. h5 Kh7 73. Kf7 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.16"]
[Round "7"]
[White "Bourgonjen, Thijmen"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "C26"]
[BlackElo "1553"]
[PlyCount "115"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. d3 d6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nf3 Be6 9. 0-0 0-0 10. Na4 Bb6 11. Nxb6 axb6 12. a3 Bg4 13. h3 Bxf3 14. Qxf3 Qxf3 15. Bxf3 Nd4 16. Bd1 c5 17. c3 Nc6 18. Bg4 Rfd8 19. b4 g6 20. Bf3 Ra7 21. Rfb1 Rda8 22. bxc5 bxc5 23. a4 Kg7 24. Bg4 Na5 25. Rb6 Ra6 26. Rab1 h5 27. Bd7 Kf8 28. Rxa6 Rxa6 29. Bc8 Ra7 30. g4 h4 31. g5 Ke7 32. Kg2 Ke8 33. Bg4 Ke7 34. Bd1 f6 35. gxf6+ Kxf6 36. Kf3 g5 37. Rb6 Ra6 38. Rxa6 bxa6 39. Ke3 c4 40. Be2 Nb3 41. dxc4 Nc5 42. a5 Nb3 43. c5 Nxc5 44. f3 Ke6 45. Kd2 Kf6 46. Kc2 Ke7 47. Kb2 Ke6 48. Bc4+ Ke7 49. Ka3 Kf8 50. Kb4 Kg7 51. Be2 Kf6 52. Bc4 Ke7 53. Be2 Kd7 54. Bc4 Kc7 55. Be2 Kd7 56. Bc4 Kc7 57. Be2 Kd7 58. Bc4 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.16"]
[Round "9"]
[White "Kanne, Kelvin"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "C28"]
[BlackElo "1553"]
[PlyCount "116"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Nc3 Bg4 5. h3 Bxf3 6. Qxf3 Nf6 7. Bc4 Be7 8. 0-0 0-0 9. d3 Nd4 10. Qf2 c6 11. Be3 c5 12. Bxd4 cxd4 13. Nd5 Nxd5 14. Bxd5 Qb6 15. c3 dxc3 16. Qxb6 axb6 17. bxc3 Rac8 18. c4 Rc7 19. Rab1 Ra8 20. Rxb6 Rxa2 21. fxe5 dxe5 22. Rxf7 Bc5+ 23. Kh2 Rxf7 24. Rxb7 Raf2 25. Rb8+ Bf8 26. Rb5 Bd6 27. Bxf7+ Kxf7 28. Rd5 Ke6 29. Kg3 Rc2 30. Ra5 Rc3 31. Rd5 g6 32. Kg4 h6 33. Kh4 Rc2 34. Kg3 h5 35. Kf3 g5 36. Kg3 Bb4 37. h4 g4 38. Rb5 Be1+ 39. Kh2 Rc1 40. Rb6+ Kd7 41. Rh6 Rc3 42. Rxh5 Rxd3 43. g3 Bxg3+ 44. Kg2 Bf4 45. Rh7+ Kc6 46. Rg7 Kc5 47. Rxg4 Kxc4 48. h5 Rd6 49. Rh4 Kd4 50. Kf3 Ra6 51. Rxf4 exf4 52. Kxf4 Re6 53. Kg5 Kxe4 54. h6 Ra6 55. h7 Ra8 56. Kg6 Ke5 57. Kg7 Ra7+ 58. Kg6 Ra8 1/2-1/2

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.15"]
[Round "5"]
[White "Beukema, Constantijn"]
[Black "Salomons, Quinten"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1553"]
[PlyCount "120"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[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 Nxd4 9. Nxd4 Qxd4 10. Nc3 a6 11. Re1 Ne7 12. Qc2 Ng6 13. Be3 Qxe5 14. Bc5 Qg5 15. Bxf8 Nxf8 16. Qb3 Bc6 17. Rac1 Nd7 18. Na4 0-0 19. Nc5 Nxc5 20. Rxc5 Rfc8 21. a3 Rc7 22. Rec1 Qe7 23. Qb6 Qd6 24. b4 Rac8 25. b5 axb5 26. Bxb5 Qd7 27. a4 d4 28. Bxc6 bxc6 29. Rb1 d3 30. Rcc1 c5 31. a5 d2 32. Rd1 c4 33. Qb2 c3 34. Qc2 g6 35. h3 Qd5 36. Ra1 Qf5 37. Rxd2 cxd2 38. Qxd2 Qd5 39. Qb2 Rc2 40. Qa3 Qd2 41. Rf1 Rc1 42. Rxc1 Rxc1+ 43. Kh2 Qf4+ 44. Qg3 Qxg3+ 45. fxg3 Ra1 46. a6 Rxa6 47. h4 Kg7 48. g4 Ra3 49. g3 Kf6 50. g5+ Kf5 51. Kg2 Kg4 52. h5 gxh5 53. g6 hxg6 54. Kf2 Rxg3 55. Ke2 h4 56. Kd2 h3 57. Kc2 h2 58. Kd2 h1Q 59. Ke2 Qh2+ 60. Kf1 Rg1# 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.15"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Van Steenoven, Luuk"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1553"]
[PlyCount "53"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d5 2. e5 c5 3. Nf3 Nc6 4. c3 e6 5. d4 Qb6 6. Bd3 cxd4 7. cxd4 Nge7 8. Nc3 a6 9. 0-0 Nf5 10. Bxf5 exf5 11. Nxd5 Qd8 12. Nc3 Bb4 13. Re1 0-0 14. Bg5 Qd7 15. d5 Ne7 16. e6 fxe6 17. dxe6 Qe8 18. Bxe7 Bxe7 19. Nd5 Bd6 20. e7 Rf7 21. Ng5 Rxe7 22. Nxe7+ Bxe7 23. Qd5+ Kh8 24. Nf7+ Kg8 25. Rxe7 Qxe7 26. Nh6+ Kf8 27. Qg8# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.15"]
[Round "4"]
[White "Van Cleef, Matteo"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C51"]
[BlackElo "1553"]
[PlyCount "70"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. 0-0 dxc3 8. Bxf7+ Kxf7 9. Qd5+ Ke8 10. Qxc5 d6 11. Qxc3 Qf6 12. Re1 Be6 13. e5 dxe5 14. Nxe5 Nxe5 15. Rxe5 h6 16. Qxc7 Rd8 17. Re1 Qe7 18. Bf4 Nf6 19. Qe5 Kf7 20. Nc3 Rhe8 21. Nb5 Rd5 22. Qe2 Bg4 23. Qc4 Qxe1+ 24. Qf1 Qxf1+ 25. Kxf1 Be2+ 26. Kg1 Bxb5 27. h3 Be2 28. Kh2 Rd1 29. Rxd1 Bxd1 30. g3 Bf3 31. g4 Ne4 32. Kg1 Rd8 33. Bd2 Rxd2 34. Kh2 Rd1 35. h4 Rh1# 0-1

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.14"]
[Round "1"]
[White "Algra, Sake"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1514"]
[BlackElo "1553"]
[PlyCount "45"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Qe7 7. 0-0 Nxe5 8. Nxe5 Qxe5 9. Re1 Ne4 10. Bxf7+ Kxf7 11. Qf3+ Qf6 12. Qxe4 dxc3 13. Qc4+ d5 14. Qxd5+ Be6 15. Qxc5 cxb2 16. Qxc7+ Kg6 17. Bxb2 Qxb2 18. Rxe6+ Kf5 19. Qf7+ Kg5 20. f4+ Kg4 21. h3+ Kh4 22. Qe7+ Kg3 23. Qg5# 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.14"]
[Round "3"]
[White "Beukema, Constantijn"]
[Black "Haasbroek, Jason"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1553"]
[PlyCount "83"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 f6 4. Bc4 Nge7 5. 0-0 Ng6 6. Nc3 Bb4 7. Bb5 Nce7 8. a3 Bxc3 9. bxc3 0-0 10. Bc4+ Kh8 11. Bb3 exd4 12. cxd4 d6 13. Bb2 d5 14. exd5 Nxd5 15. Re1 Bg4 16. h3 Bxf3 17. Qxf3 c6 18. Re2 Nh4 19. Qe4 f5 20. Qe5 Qg5 21. Qg3 Qxg3 22. fxg3 Ng6 23. Rae1 Nc7 24. a4 h6 25. Kh2 f4 26. gxf4 Nxf4 27. Re7 Rac8 28. d5 cxd5 29. Rxg7 Nce6 30. Re7+ Kg8 31. R7xe6 Nxe6 32. Rxe6 Rf5 33. Rxh6 Rd8 34. Rh8+ Kf7 35. Rxd8 Ke6 36. g4 Rf2+ 37. Kg3 Rd2 38. Bc3 Rd1 39. Kf2 Rh1 40. Bxd5+ Ke7 41. Bf6+ Kxf6 42. Bxh1 1-0

[Event "NED-ch U13"]
[Site "Rijswijk"]
[Date "2015.05.14"]
[Round "2"]
[White "Tran, Tommy"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C45"]
[BlackElo "1553"]
[PlyCount "103"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 d6 7. Bc4 Nf6 8. Qe2 0-0 9. Be3 Re8 10. f3 Be6 11. Bxb6 axb6 12. 0-0 d5 13. Bb5 d4 14. Nd1 Bxb3 15. cxb3 Re5 16. Bxc6 bxc6 17. Nf2 c5 18. a3 c6 19. Rac1 Qe7 20. Rfd1 Nd5 21. Qd3 Ne3 22. Rd2 b5 23. Nd1 c4 24. Qxd4 Nxd1 25. Rdxd1 cxb3 26. Qc3 c5 27. Qxb3 Qa7 28. Kf1 c4 29. Qc3 Qe7 30. Rc2 h6 31. Rcd2 Re6 32. Rd5 Qe8 33. Rd6 Rxd6 34. Rxd6 Rd8 35. Qd4 Rxd6 36. Qxd6 Kh7 37. Ke2 f5 38. e5 Qc8 39. Kd2 Qe8 40. e6 Qg6 41. g3 Qf6 42. Kc2 Qg6 43. Kc3 Qf6+ 44. Kc2 Qg6 45. f4 Qf6 46. Qd7 Qg6 47. e7 Qh5 48. e8Q Qxh2+ 49. Kb1 Qh3 50. Qef7 Qxg3 51. Qdxf5+ Kh8 52. Qf8# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.04"]
[Round "7"]
[White "Beukema, Constantijn"]
[Black "Bleeker, Kasper"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1553"]
[PlyCount "120"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. 0-0 Qe5 9. Nxc6 Nxc6 10. Bxc5 Qxc5 11. Bb3 d6 12. Re1 Ne5 13. Qd4 Qxd4 14. cxd4 Nd3 15. Re2 c5 16. Rd2 Nf4 17. Nc3 Ne6 18. Bxe6 Bxe6 19. d5 Bd7 20. Re1 Rae8 21. Rde2 Re7 22. e5 dxe5 23. Rxe5 Rxe5 24. Rxe5 Re8 25. Rxe8+ Bxe8 26. Kf1 Kf8 27. Ke2 Ke7 28. Kd3 Kd6 29. Kc4 f5 30. f3 a6 31. b4 b5+ 32. Kb3 c4+ 33. Kc2 Bf7 34. a3 Bxd5 35. Nxd5 Kxd5 36. Kc3 Ke5 37. g3 h6 38. a4 f4 39. g4 Kf6 40. h4 Kg6 41. a5 Kf6 42. Kd4 h5 43. Ke4 g5 44. hxg5+ Kxg5 45. gxh5 Kxh5 46. Kxf4 Kh4 47. Ke4 Kh5 48. f4 Kg6 49. f5+ Kf6 50. Kf4 Kf7 51. Ke4 Kf6 52. Kf4 c3 53. Ke3 c2 54. Kd2 Kxf5 55. Kxc2 Ke5 56. Kd2 Kd5 57. Kd3 Ke5 58. Ke3 Kd5 59. Kd3 Ke5 60. Ke3 Kd5 1/2-1/2

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.04"]
[Round "9"]
[White "Beukema, Constantijn"]
[Black "Garceran Wang, Miguel Angel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1553"]
[PlyCount "73"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. d5 Be7 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 c6 8. Be3 Ng4 9. Qd2 Nxe3 10. Qxe3 a5 11. a4 Nc5 12. Rad1 Qc7 13. Rfe1 f5 14. Bd3 fxe4 15. Bxe4 Bg4 16. dxc6 bxc6 17. Nd5 cxd5 18. Bxd5+ Kh8 19. Bxa8 Rxa8 20. h3 Bh5 21. Ra1 Rf8 22. Nxe5 dxe5 23. Qxe5 Qxe5 24. Rxe5 Bh4 25. g3 Bf6 26. Rxc5 Bg6 27. Rxa5 Bxb2 28. Ra2 Bd4 29. c4 Bf7 30. Rc2 Be6 31. h4 Rc8 32. c5 Bf6 33. c6 Bd8 34. Re5 Bf7 35. Rf5 Rc7 36. a5 g6 37. Rb5 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.03"]
[Round "1"]
[White "Beukema, Constantijn"]
[Black "Kudlicka, Nathan"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1553"]
[PlyCount "101"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bc5 6. Be3 0-0 7. Nxc6 dxc6 8. Bxc5 Re8 9. Qxd8 Rxd8 10. Bd3 b6 11. Be3 c5 12. 0-0 c4 13. Bxc4 c6 14. f3 b5 15. Bd3 b4 16. Na4 Be6 17. Nc5 Bc8 18. a3 bxa3 19. Rxa3 Rb8 20. Nb3 Be6 21. Nc5 Bd7 22. Rxa7 Rxb2 23. Nxd7 Nxd7 24. Rfa1 Rbb8 25. Kf2 Ne5 26. Ke2 Nxd3 27. cxd3 Rb2+ 28. Ke1 h6 29. Ra8 Rxa8 30. Rxa8+ Kh7 31. Bd2 Rb1+ 32. Ke2 Kg6 33. Ra6 Kh5 34. Rxc6 Rh1 35. Rc5+ g5 36. g4+ Kh4 37. Be1+ Kh3 38. Bg3 Rg1 39. Kf2 Rg2+ 40. Ke3 f6 41. Rc6 Rxg3 42. hxg3 Kxg3 43. Rxf6 Kg2 44. d4 Kg3 45. d5 Kg2 46. d6 Kg3 47. d7 Kg2 48. d8Q Kg3 49. Qd2 Kh3 50. Rxh6+ Kg3 51. Qh2# 1-0

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.03"]
[Round "3"]
[White "Beukema, Constantijn"]
[Black "Kutchoukov, Daniel"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1553"]
[BlackElo "1471"]
[PlyCount "121"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Bc4 e6 9. Bxd5 exd5 10. 0-0 Be7 11. Re1 0-0 12. Re3 Bf6 13. Qa4 Bxf3 14. Rxf3 Nxd4 15. Rd3 Qe8 16. Qxe8 Rfxe8 17. Be3 Nc2 18. Rad1 d4 19. Bxd4 Nxd4 20. Nd5 Nc6 21. Nc7 Ne5 22. Nxe8 Nxd3 23. Nxf6+ gxf6 24. Rxd3 Rc8 25. g3 Rc2 26. Rb3 b6 27. a3 Kg7 28. Kg2 Kg6 29. Rb5 f5 30. h4 Kf6 31. b3 Ke6 32. a4 Rc5 33. Rb4 Ke5 34. Rf4 a5 35. b4 Rd5 36. bxa5 bxa5 37. Rc4 f6 38. Rc7 Rd4 39. Rxh7 Rxa4 40. Ra7 Rd4 41. h5 a4 42. h6 a3 43. h7 Rd8 44. Rxa3 Rh8 45. Ra7 f4 46. gxf4+ Kxf4 47. f3 Kg5 48. Kg3 Kg6 49. Kg4 Rxh7 50. Rxh7 Kxh7 51. Kf5 Kg7 52. Ke6 Kg6 53. f4 f5 54. Ke5 Kg7 55. Kxf5 Kf7 56. Ke5 Ke7 57. f5 Kf7 58. f6 Kf8 59. Ke6 Ke8 60. f7+ Kf8 61. Kf6 1/2-1/2

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.03"]
[Round "5"]
[White "Beukema, Constantijn"]
[Black "Zubair, Muhammad Saad"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1553"]
[PlyCount "140"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 f6 4. d5 Nb4 5. a3 Na6 6. Bxa6 bxa6 7. Nc3 Bc5 8. 0-0 Ne7 9. Be3 Bb6 10. Qd3 0-0 11. a4 Bb7 12. a5 Bxe3 13. fxe3 c6 14. b4 f5 15. Nxe5 fxe4 16. Rxf8+ Qxf8 17. Qxe4 cxd5 18. Qg4 Bc8 19. Rf1 Qe8 20. Qd4 d6 21. Nd3 Bb7 22. Nf4 Nf5 23. Qd3 Qxe3+ 24. Kh1 Qxd3 25. cxd3 d4 26. Ncd5 Ne3 27. Nxe3 dxe3 28. Re1 Re8 29. Kg1 g5 30. Nh5 Kf7 31. Kf1 Kg6 32. Ng3 h5 33. Ne4 Bxe4 34. dxe4 Rxe4 35. Ke2 Rxb4 36. Rd1 Rb2+ 37. Kxe3 Rxg2 38. Rxd6+ Kf5 39. Rxa6 Rxh2 40. Rxa7 Ra2 41. Ra8 h4 42. a6 h3 43. a7 h2 44. Rh8 Rxa7 45. Rxh2 Ra3+ 46. Kf2 Kf4 47. Kf1 Ra1+ 48. Kg2 Ra2+ 49. Kg1 Rxh2 50. Kxh2 Kf3 51. Kg1 Kg3 52. Kh1 Kf2 53. Kh2 g4 54. Kh1 Kf3 55. Kg1 Kg3 56. Kh1 Kf2 57. Kh2 g3+ 58. Kh3 g2 59. Kg4 g1Q+ 60. Kf5 Qg3 61. Ke4 Qe3+ 62. Kd5 Qf4 63. Ke6 Qg5 64. Kd6 Ke3 65. Ke6 Kd4 66. Kd6 Qg6+ 67. Ke7 Kd5 68. Kf8 Qh7 69. Ke8 Ke6 70. Kd8 Qd7# 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.03"]
[Round "2"]
[White "Molin, Charles"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1553"]
[PlyCount "98"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 0-0 6. Nc3 d6 7. h3 Be6 8. Nd5 Bxd5 9. exd5 Nd4 10. c3 Nxf3+ 11. Qxf3 Bb6 12. Bg5 Re8 13. Bxf6 Qxf6 14. Qxf6 gxf6 15. Rfe1 Kh8 16. Re2 Rg8 17. Rae1 Rg6 18. b4 Rag8 19. g4 Rh6 20. Kh2 Rxg4 21. Re4 Rxe4 22. Rxe4 Bxf2 23. Re2 Bb6 24. Rg2 Rg6 25. Rxg6 fxg6 26. Kg3 Kg7 27. a4 a5 28. b5 f5 29. Kf3 Kf6 30. h4 h6 31. Bb3 g5 32. hxg5+ hxg5 33. Bd1 g4+ 34. Kg3 Kg5 35. c4 f4+ 36. Kg2 Kh4 37. Be2 f3+ 38. Bxf3 gxf3+ 39. Kxf3 Kg5 40. Kg3 Bd4 41. Kf3 Kh4 42. Ke4 Kg4 43. b6 Bxb6 44. d4 Bxd4 45. Kd3 Kf3 46. Kd2 Ke4 47. Ke2 Be3 48. Kf1 Kd4 49. Kg2 Kxc4 0-1

[Event "NED-ch U11"]
[Site "Waalwijk"]
[Date "2015.04.03"]
[Round "4"]
[White "Reina, Leon"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C48"]
[BlackElo "1553"]
[PlyCount "155"]
[EventDate "2015.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. d3 d6 6. Bg5 Be6 7. Nd5 a6 8. Bxc6+ bxc6 9. Nxf6+ gxf6 10. Bh4 Rb8 11. Qc1 Bg4 12. Nd2 Rg8 13. Nb3 Bb6 14. Qh6 Rg6 15. Qxh7 Ke7 16. h3 Be6 17. Qh5 Qg8 18. Qf3 Qg7 19. Rb1 Rg8 20. g3 Rh8 21. c3 Kd7 22. c4 c5 23. Rc1 a5 24. a4 Ke7 25. Na1 Qh6 26. Rb1 Qg7 27. Nc2 Rgh6 28. Ne3 Qg6 29. Nf5+ Bxf5 30. exf5 Qh7 31. Ra1 Rh5 32. Ra3 Rxf5 33. Qe4 Rh5 34. Qxh7 R8xh7 35. 0-0 Rg7 36. Kh2 Ke6 37. f4 Rg8 38. fxe5 fxe5 39. Rf6+ Kd7 40. Rxf7+ Kc6 41. Ra1 Rg6 42. Raf1 Rhh6 43. R7f6 Rxf6 44. Rxf6 Rh5 45. Rg6 Rf5 46. Rf6 Rh5 47. Kg2 e4 48. dxe4 Re5 49. Kf3 Kd7 50. Kf4 Re8 51. Rf7+ Ke6 52. Rf6+ Kd7 53. g4 c6 54. g5 Bd8 55. Rg6 Rf8+ 56. Kg4 Be7 57. Rg7 Ke6 58. Bg3 d5 59. exd5+ cxd5 60. cxd5+ Kd7 61. d6 Re8 62. dxe7 Ke6 63. Bc7 Ra8 64. Bd8 Kd7 65. Rg8 Rb8 66. e8Q+ Kd6 67. Qe7+ Kd5 68. Qd7+ Kc4 69. Qe6+ Kd3 70. Qd5+ Kc2 71. Re8 Rb4+ 72. Kh5 Kxb2 73. Re2+ Kc3 74. Re3+ Kc2 75. Qd3+ Kb2 76. Re2+ Ka1 77. Qc3+ Kb1 78. Qe1# 1-0

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.09"]
[Round "7"]
[White "Beukema, Constantijn"]
[Black "Dubbeldam, Mathijs"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1000"]
[BlackElo "1350"]
[PlyCount "80"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 b6 3. Nc3 Bb7 4. Nf3 Bb4 5. Bd3 Ne7 6. 0-0 0-0 7. Ne2 f5 8. Ng3 fxe4 9. Nxe4 Nf5 10. c3 Be7 11. Ng3 c5 12. dxc5 Bxc5 13. Nxf5 exf5 14. Bf4 Nc6 15. Bc4+ Kh8 16. Ng5 Qe8 17. Re1 Qg6 18. Qxd7 Na5 19. Nf7+ Rxf7 20. Re8+ Rxe8 21. Qxe8+ Rf8 22. Qxg6 hxg6 23. Bf1 Nc6 24. Re1 Be7 25. Bb5 g5 26. Bxc6 Bxc6 27. Rxe7 gxf4 28. Rxa7 Ra8 29. Rxa8+ Bxa8 30. g3 fxg3 31. fxg3 Bd5 32. a3 Bb3 33. Kf2 Kg8 34. Ke3 Kf7 35. Kf4 Kf6 36. h4 g6 37. g4 fxg4 38. Kxg4 Be6+ 39. Kf3 Bd5+ 40. Ke3 Ke5 0-1

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.09"]
[Round "6"]
[White "Van der Hoeven, Carsten"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1366"]
[BlackElo "1000"]
[PlyCount "47"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Be3 Bb6 6. Nc3 Nf6 7. Qd2 d6 8. h3 Be6 9. Bb5 a6 10. Ba4 Bxe3 11. fxe3 b5 12. Bb3 d5 13. exd5 Bxd5 14. Nxd5 Nxd5 15. e4 Nf6 16. Qc3 Qd6 17. 0-0-0 Nd4 18. Nxd4 exd4 19. Qd2 c5 20. e5 Qc6 21. exf6 c4 22. fxg7 Rg8 23. dxc4 bxc4 24. Rhe1+ 1-0

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.08"]
[Round "5"]
[White "Beukema, Constantijn"]
[Black "Reusink, Hans"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1000"]
[BlackElo "1553"]
[PlyCount "64"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nxc6 bxc6 6. Nc3 Bb4 7. Bd2 Nf6 8. f3 0-0 9. Bd3 d5 10. e5 Nd7 11. f4 c5 12. Qh5 g6 13. Qh6 c4 14. Be2 Re8 15. 0-0 Bf8 16. Qg5 Qb6+ 17. Kh1 Qxb2 18. Rfc1 Qa3 19. Nb5 Qc5 20. a4 a6 21. Nc3 Bb7 22. Rab1 Rab8 23. Nd1 d4 24. Bb4 Qc7 25. Bd6 Bxd6 26. exd6 Qxd6 27. Bxc4 Qc6 28. Bb3 Nf6 29. Nf2 Kg7 30. Nd3 h6 31. Qg3 Ne4 32. Ne5 Nxg3+ 0-1

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.08"]
[Round "4"]
[White "Nguyen, Sang"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1334"]
[BlackElo "1000"]
[PlyCount "39"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Nf6 4. e3 Bg4 5. Nbd2 g6 6. h3 Bxf3 7. Nxf3 Bg7 8. Bd3 0-0 9. c3 e6 10. Qc2 Qd7 11. g4 Rfe8 12. 0-0-0 a5 13. Ne5 Nxe5 14. dxe5 Nxg4 15. hxg4 c5 16. f3 b5 17. Qh2 h6 18. Bxh6 Bxh6 19. Qxh6 c4 20. Qh8# 1-0

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.07"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Loutragotis, Marios"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1000"]
[BlackElo "1000"]
[PlyCount "103"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Qf6 6. Qxf6 Nxf6 7. Nc3 Bc5 8. Bd3 0-0 9. 0-0 Bd4 10. Bd2 Bxc3 11. Bxc3 Ne8 12. Kh1 Nd6 13. e5 Ne8 14. f4 d6 15. f5 dxe5 16. Bxe5 f6 17. Bc3 Nd6 18. Bb4 a5 19. Bxd6 cxd6 20. Bc4+ Kh8 21. Be6 Bxe6 22. fxe6 Rfe8 23. Rfe1 Re7 24. Rad1 Rae8 25. Rxd6 Rc8 26. Rd7 Rxd7 27. exd7 Rg8 28. Re8 h5 29. d8Q Rxe8 30. Qxe8+ Kh7 31. Qe4+ g6 32. Qxb7+ Kg8 33. Qa8+ Kf7 34. Qxa5 f5 35. Kg1 Kf6 36. Kf2 g5 37. Kf3 g4+ 38. Kf4 h4 39. Qxf5+ Ke7 40. Kxg4 Kd6 41. Kxh4 Kc6 42. Qe5 Kd7 43. Qf6 Kc7 44. Qe6 Kb7 45. Qd6 Ka7 46. Qb4 Ka6 47. Kg5 Ka7 48. Kf6 Ka8 49. Ke7 Ka7 50. Kd7 Ka6 51. Kc7 Ka7 52. Qb7# 1-0

[Event "Maastricht Limburg op-C 8th"]
[Site "Maastricht"]
[Date "2014.06.06"]
[Round "1"]
[White "Loutragotis, Paraskevas Pantelei"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "1570"]
[BlackElo "1000"]
[PlyCount "71"]
[EventDate "2014.06.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Bb4 6. e3 0-0 7. Bd3 h6 8. Bh4 Nbd7 9. Ne5 Qa5 10. 0-0 Bxc3 11. bxc3 Qxc3 12. Rc1 Qa5 13. Bb1 Qc7 14. Qc2 Ne4 15. f3 Nxe5 16. dxe5 Qxe5 17. fxe4 dxe4 18. Bg3 Qc5 19. Qxe4 f5 20. Qd4 Qa5 21. Rcd1 b6 22. Be1 Qa6 23. Bc3 Qb7 24. e4 c5 25. Qe5 Qf7 26. exf5 exf5 27. Bxf5 Bxf5 28. Rxf5 Qg6 29. Rdf1 Rxf5 30. Rxf5 Rf8 31. Rxf8+ Kxf8 32. Qb8+ Kf7 33. Qxa7+ Kg8 34. h3 Qb1+ 35. Kh2 Qc2 36. Qxg7# 1-0

[Event "BEL-ch U10"]
[Site "Blankenberge"]
[Date "2014.04.19"]
[Round "9"]
[White "Dardha, Daniel"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "1617"]
[BlackElo "1150"]
[PlyCount "47"]
[EventDate "2014.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Bb4 6. e3 0-0 7. Qc2 h6 8. Bxf6 Qxf6 9. a3 Bxc3+ 10. Qxc3 b6 11. Rc1 Bb7 12. cxd5 exd5 13. Bb5 Qg6 14. Bxc6 Bxc6 15. Qxc6 Qxg2 16. Ke2 h5 17. Qxd5 h4 18. Rcg1 Qh3 19. Qg5 g6 20. Qh6 Qf5 21. Rg5 Qc2+ 22. Nd2 Qxb2 23. Rh5 Qb5+ 24. Rxb5 1-0

[Event "BEL-ch U10"]
[Site "Blankenberge"]
[Date "2014.04.17"]
[Round "7"]
[White "Torres Tejeda, Diego"]
[Black "Beukema, Constantijn"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "1598"]
[BlackElo "1150"]
[PlyCount "111"]
[EventDate "2014.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Bb4 5. e3 0-0 6. Nf3 c6 7. a3 Bxc3+ 8. bxc3 Nbd7 9. Bd3 h6 10. Bh4 b6 11. 0-0 Bb7 12. Ne5 Nxe5 13. dxe5 dxc4 14. exf6 Qxd3 15. fxg7 Kxg7 16. Qxd3 cxd3 17. Rfd1 Ba6 18. Rac1 e5 19. a4 e4 20. Rb1 Bc4 21. Rb4 b5 22. axb5 cxb5 23. Rbb1 a5 24. Be7 Rfe8 25. Ba3 f5 26. Rb2 Kg6 27. Rf1 Red8 28. Rd2 a4 29. f3 h5 30. fxe4 fxe4 31. Rf4 Re8 32. g3 Bb3 33. Kg2 Bc4 34. h3 Kg5 35. g4 hxg4 36. hxg4 Ra6 37. Kg3 Rf6 38. Rxf6 Kxf6 39. Kf2 Kg5 40. Ke1 Kxg4 41. Rf2 Kg3 42. Rf4 Rd8 43. Kd2 Re8 44. Bd6 Kh3 45. Bb4 Rg8 46. Rf2 Rg2 47. Rxg2 Kxg2 48. Ba3 Kf2 49. Bb4 Kf3 50. Ba3 Kg4 51. Bb4 Kf5 52. Ba3 Ke5 53. Bb4 Kd5 54. Ba3 Kc6 55. Bb4 Kb6 56. Ba3 1/2-1/2

[Event "BEL-ch U10"]
[Site "Blankenberge"]
[Date "2014.04.16"]
[Round "5"]
[White "Faybish, Benjamin"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1407"]
[BlackElo "1150"]
[PlyCount "81"]
[EventDate "2014.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 d5 3. Bb2 Nc6 4. e3 d4 5. Bb5 Bd7 6. Bxc6 Bxc6 7. exd4 cxd4 8. Bxd4 Bxf3 9. Qxf3 Qxd4 10. Qxb7 Qd8 11. Qc6+ Qd7 12. Qxa8+ Qd8 13. Qxd8+ Kxd8 14. 0-0 g6 15. Nc3 Bg7 16. Rae1 Nf6 17. Re5 e6 18. Ra5 Re8 19. Rxa7 Nd7 20. Ra8+ Ke7 21. Rxe8+ Kxe8 22. a4 Bf8 23. Ra1 Nb6 24. a5 Na8 25. Rb1 Nc7 26. b4 Na6 27. b5 Nb8 28. a6 Bc5 29. Ra1 Kd7 30. a7 Bxa7 31. Rxa7+ Kc8 32. Ra8 Kb7 33. Rxb8+ Kxb8 34. Kf1 Kb7 35. Ke2 Kb6 36. Ke3 f6 37. Ke4 Kc5 38. d4+ Kb6 39. d5 e5 40. d6 Kb7 41. Nb1 1-0

[Event "NED-ch U10"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "10"]
[White "Beukema, Constantijn"]
[Black "Neisingh, Nils"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "631"]
[BlackElo "716"]
[PlyCount "52"]
[EventDate "2013.04.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Nf6 6. Nc3 Bd6 7. e5 Qe7 8. f4 Bc5 9. Qd3 d6 10. Nd5 Nxd5 11. Qxd5 Be6 12. Qxb7 0-0 13. Qe4 d5 14. Qd3 f6 15. Bd2 fxe5 16. fxe5 Bf2+ 17. Kd1 Bg4+ 18. Be2 Bxe2+ 19. Qxe2 Bd4 20. Bc3 Bxc3 21. bxc3 Rfe8 22. Re1 Rad8 23. g3 d4 24. cxd4 Rxd4+ 25. Kc1 Qa3+ 26. Kb1 Rb8+ 0-1

[Event "NED-ch U10"]
[Site "Borne"]
[Date "2013.08.09"]
[Round "11"]
[White "Salomons, Matthijs"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "395"]
[BlackElo "631"]
[PlyCount "37"]
[EventDate "2013.04.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nf3 Nc6 4. Ng5 d5 5. exd5 Na5 6. b3 Nxc4 7. bxc4 Nxd5 8. cxd5 Qxg5 9. d4 Qxg2 10. Ke2 Qxd5 11. Nc3 Qxd4 12. Bg5 f6 13. Nb5 Qc4+ 14. Qd3 Qxd3+ 15. cxd3 fxg5 16. Nxc7+ Kd7 17. Nxa8 b6 18. Rac1 Bb7 19. Rc7+ 1-0

[Event "NED-ch U10"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "5"]
[White "Bertholee, Arjuna"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "681"]
[BlackElo "631"]
[PlyCount "40"]
[EventDate "2013.04.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. 0-0 0-0 6. d3 a6 7. Ba4 b5 8. Bb3 Bc5 9. Bg5 h6 10. Bh4 Be7 11. Nd5 Nxd5 12. exd5 Bxh4 13. Nxh4 Qxh4 14. dxc6 dxc6 15. c4 Qg5 16. Qf3 Bb7 17. cxb5 axb5 18. Bc2 Ra7 19. d4 c5 20. Qd3 Qxg2# 0-1

[Event "NED-ch U10"]
[Site "Borne"]
[Date "2013.08.07"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Faybish, Nathaniel"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "631"]
[BlackElo "1339"]
[PlyCount "22"]
[EventDate "2013.04.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. Nc3 Nf6 5. 0-0 Nc6 6. d3 Bg4 7. h3 Bh5 8. Bg5 Nd4 9. Re1 Qd7 10. Nxd4 Bxd1 11. Bb5 c6 0-1

[Event "NED-ch U10"]
[Site "Borne"]
[Date "2013.08.06"]
[Round "4"]
[White "Beukema, Constantijn"]
[Black "Nguyen, Lucas"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "631"]
[BlackElo "1127"]
[PlyCount "43"]
[EventDate "2013.04.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bc4 Bg7 5. 0-0 d6 6. d3 Nf6 7. Re1 Bg4 8. h3 Bd7 9. e5 dxe5 10. Nxe5 0-0 11. Nxc6 Bxc6 12. Qe2 Qb6 13. Qxe7 Rae8 14. Qxe8 Rxe8 15. Rd1 Nd7 16. Bb3 Bxc3 17. bxc3 Kg7 18. Bb2 a5 19. Rab1 Re2 20. Re1 Rxe1+ 21. Rxe1 a4 22. c4+ 0-1

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "5"]
[White "Beukema, Constantijn"]
[Black "Kutchoukov, Daniel"]
[Result "1-0"]
[ECO "C46"]
[PlyCount "65"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. d4 d6 5. d5 Nd4 6. Nxd4 exd4 7. Qxd4 Bxc3+ 8. Qxc3 Nf6 9. e5 dxe5 10. Qxe5+ Be6 11. dxe6 0-0 12. exf7+ Rxf7 13. Qe2 Re7 14. Be3 Qd5 15. Qd3 Qa5+ 16. Qd2 Qe5 17. 0-0-0 Rd7 18. Bd4 Qe6 19. Re1 Qg4 20. f3 Qg6 21. Bc4+ Kh8 22. Bd3 Qf7 23. Be4 c5 24. c3 cxd4 25. cxd4 Nxe4 26. Rxe4 Qxa2 27. Rhe1 Qa1+ 28. Kc2 Qa4+ 29. b3 Rc8+ 30. Kb2 Rxd4 31. Rxd4 Qc6 32. Rd8+ Qe8 33. Rexe8# 1-0

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Pham, Khoi"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "46"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. Bc4 0-0 8. 0-0 d5 9. exd5 cxd5 10. Bxd5 Rb8 11. Be3 Bg4 12. f3 Bxe3+ 13. Kh1 Bf5 14. Re1 Bb6 15. Be4 Qxd1 16. Rexd1 Nxe4 17. Nxe4 Rfe8 18. Re1 h6 19. Ng3 Bxc2 20. Rxe8+ Rxe8 21. Rc1 Bg6 22. Rc3 Re1+ 23. Nf1 Rxf1# 0-1

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Reina, Leon"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "76"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 d6 6. Bg5 h6 7. Be3 Bd4 8. Bxd4 Nxd4 9. 0-0 Bg4 10. Nd5 Nxd5 11. Bxd5 c6 12. Bc4 b5 13. Bb3 a5 14. c3 Bxf3 15. gxf3 Qg5+ 16. Kh1 Nxb3 17. axb3 0-0 18. c4 f5 19. Rg1 Qf4 20. Rg2 fxe4 21. fxe4 Qf3 22. Qxf3 Rxf3 23. b4 a4 24. Ra3 Raf8 25. Kg1 bxc4 26. dxc4 Rxa3 27. bxa3 Rf3 28. Rg3 Rf4 29. Re3 Kf7 30. Kg2 Kf6 31. Kg3 g5 32. b5 h5 33. Kg2 h4 34. bxc6 Ke6 35. h3 Rf8 36. Re2 Rb8 37. Rb2 d5 38. exd5+ Kf5 1-0

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "7"]
[White "Mooibroek, Willem"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "86"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. Bxd5 Nxd5 6. exd5 Qxg5 7. dxc6 bxc6 8. d3 Qd8 9. 0-0 Bd6 10. Nc3 Be6 11. b3 0-0 12. Bb2 Qg5 13. g3 Bd5 14. Nxd5 cxd5 15. Qf3 c6 16. c4 d4 17. Qxc6 Rfd8 18. Bc1 Qe7 19. Qa6 Rdb8 20. f4 Rb6 21. Qa5 Bb4 22. Qd5 exf4 23. Qxa8+ Qf8 24. Qxa7 Re6 25. Qxd4 Bc5 26. Qxc5 Qxc5+ 27. Rf2 Re2 28. Kg2 Qxf2+ 29. Kh3 Qxh2+ 30. Kg4 h5+ 31. Kxf4 Qf2+ 32. Kg5 Re5+ 33. Kh4 Qf6+ 34. Kh3 Qf1+ 35. Kh4 Qxd3 36. Bb2 Re2 37. Rb1 Qxb1 38. Bd4 Re4+ 39. Kxh5 Qh1+ 40. Kg5 Rxd4 41. Kf5 Qe4+ 42. Kg5 f6+ 43. Kh5 Qg4# 0-1

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "4"]
[White "Piersma, Wisse"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "33"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qe7 5. Nc3 Nxd4 6. Qxd4 Nf6 7. Bg5 c5 8. Qd3 g6 9. Qf3 Bg7 10. Bc4 0-0 11. 0-0 d6 12. Nd5 Qxe4 13. Bxf6 Qxc4 14. Bxg7 Kxg7 15. Rae1 Be6 16. Qf6+ Kg8 17. Ne7# 1-0

[Event "NED-ch U09"]
[Site "Roosendaal"]
[Date "2013.06.15"]
[Round "3"]
[White "Van Cleef, Matteo"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "100"]
[EventDate "2013.06.15"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. d4 Nc6 3. dxe5 Nxe5 4. f4 Nc6 5. Nf3 d6 6. Bb5 Bd7 7. 0-0 a6 8. Bxc6 Bxc6 9. Nc3 Nf6 10. Re1 Be7 11. e5 dxe5 12. Qxd8+ Rxd8 13. fxe5 Nd7 14. Nd4 0-0 15. Nf5 Rfe8 16. Rd1 Nxe5 17. Rxd8 Rxd8 18. Nxe7+ Kf8 19. Nxc6 Nxc6 20. Bf4 Rd7 21. Rd1 Re7 22. Kf2 h6 23. Nd5 Rd7 24. Ke2 g5 25. Bxc7 Ne7 26. Nxe7 Rxe7+ 27. Kd3 Rxc7 28. Re1 Kg7 29. c3 Rd7+ 30. Kc4 Rd2 31. Kb3 Rxg2 32. h3 Rh2 33. Re3 Kg6 34. Kc4 f5 35. Kd5 f4 36. Rd3 Rxb2 37. a3 Ra2 38. Ke5 Rxa3 39. Rd6+ Kh5 40. Rb6 Rxc3 41. Rxb7 Rxh3 42. Ra7 f3 43. Rxa6 f2 44. Ra1 Re3+ 45. Kd4 Re1 46. Ra3 f1Q 47. Rc3 Qf4+ 48. Kc5 Re5+ 49. Kb6 Qb4+ 50. Ka6 Ra5# 0-1

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.20"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "Conte, Roberto"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "60"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Nc3 Bg4 4. Bc4 Nc6 5. h3 Bh5 6. 0-0 Qf6 7. Be2 Bxf3 8. Bxf3 Nge7 9. Nb5 0-0-0 10. d3 a6 11. Bg4+ Kb8 12. Nc3 g6 13. Nd5 Nxd5 14. exd5 Ne7 15. c4 h5 16. Bf3 g5 17. b4 Nf5 18. g4 Nd4 19. Be2 Nxe2+ 20. Qxe2 hxg4 21. Qxg4 Rh4 22. Qg3 Bh6 23. a4 e4 24. Bd2 g4 25. Bxh6 Qxh6 26. hxg4 Rg8 27. b5 Rgxg4 28. bxa6 Rxg3+ 29. fxg3 Rh1+ 30. Kf2 Qd2# 0-1

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.20"]
[Round "7"]
[White "Slangen Knuit, Dien"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "94"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. Nf3 Nc6 4. Bb5 Bd7 5. 0-0 e6 6. c4 Bd6 7. cxd5 Nxd5 8. e4 Nde7 9. e5 Bb4 10. a3 Ba5 11. Bxc6 Bxc6 12. b4 Bb6 13. Bb2 0-0 14. a4 a6 15. Ba3 Nf5 16. b5 Bxf3 17. Bxf8 Bxd1 18. Rxd1 Qxf8 19. bxa6 Bxd4 20. g4 Bxa1 21. gxf5 exf5 22. f4 Qd8 23. Rxd8+ Rxd8 24. axb7 Rd1+ 25. Kf2 Rxb1 26. a5 Rxb7 27. h4 Bxe5 28. fxe5 Rb5 29. Ke3 Rxa5 30. Kf4 f6 31. Kxf5 Rxe5+ 32. Kf4 Rg5 33. hxg5 fxg5+ 34. Kxg5 c5 35. Kf4 h5 36. Ke4 h4 37. Ke5 h3 38. Ke4 h2 39. Ke5 h1Q 40. Kf4 g5+ 41. Ke5 g4 42. Kd6 g3 43. Ke5 g2 44. Ke6 g1Q 45. Ke5 Qd4+ 46. Ke6 Qe1+ 47. Kf5 Qdf2+ 0-1

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.19"]
[Round "4"]
[White "Beukema, Constantijn"]
[Black "Oxener, Aldo"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1498"]
[PlyCount "50"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 a6 5. Bc4 b5 6. Bb3 Bb7 7. 0-0 Nf6 8. Ng5 e6 9. d3 Be7 10. Nge4 Qc6 11. Be3 0-0 12. f3 Nxe4 13. fxe4 Nd7 14. d4 Nf6 15. d5 exd5 16. Bxd5 Nxd5 17. exd5 Qg6 18. b4 Bxb4 19. Qd4 Bxc3 20. Qxc3 Bxd5 21. Qd2 Rfd8 22. Qf2 Rd6 23. Bf4 Rf6 24. g3 Qe4 25. Rae1 Qh1# 0-1

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.19"]
[Round "5"]
[White "Bosteels, Roald"]
[Black "Beukema, Constantijn"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "88"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. d3 0-0 6. Bg5 h6 7. Bh4 d6 8. Nd5 g5 9. Nxg5 hxg5 10. Bxg5 Bxf2+ 11. Kxf2 Ng4+ 12. Kf1 Qxg5 13. Qf3 Qh5 14. Qg3 Qg5 15. Kg1 Nd4 16. Kf1 Nxc2 17. h4 Nce3+ 18. Nxe3 Nxe3+ 19. Kf2 Qxg3+ 20. Kxg3 Nxc4 21. dxc4 Be6 22. Rac1 c6 23. h5 Kh7 24. c5 d5 25. Rce1 f6 26. Kh4 Rg8 27. exd5 Bxd5 28. Rhg1 Rg5 29. g4 Rag8 30. Kg3 Rxg4+ 31. Kf2 Rxg1 32. Rxg1 Rxg1 33. Kxg1 Bxa2 34. Kg2 b6 35. cxb6 axb6 36. Kg3 Kh6 37. Kg4 b5 38. Kf5 c5 39. Kxf6 e4 40. Ke7 e3 41. b4 e2 42. Ke8 e1Q+ 43. Kf8 Qe6 44. bxc5 Qf7# 0-1

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.18"]
[Round "3"]
[White "Giesen, Janneke"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "31"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Nxd4 Bd7 7. Bg5 Nxd4 8. Bxd7+ Qxd7 9. Qxd4 Be7 10. 0-0-0 0-0-0 11. Qxa7 c6 12. Rd4 Qg4 13. Bxf6 Bxf6 14. Rb4 Rd7 15. Qa8+ Kc7 16. Rxb7# 1-0

[Event "Maastricht Limburg op-C 7th"]
[Site "Maastricht"]
[Date "2013.05.17"]
[Round "1"]
[White "Beukema, Constantijn"]
[Black "Van Ginneken, Jos"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "62"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 e5 3. d4 Nd7 4. Be3 Ngf6 5. Nc3 Be7 6. Bd3 c6 7. 0-0 h6 8. Qd2 Qc7 9. d5 Nf8 10. dxc6 bxc6 11. b4 g5 12. b5 c5 13. h3 Ng6 14. Nd5 Nxd5 15. exd5 Nf4 16. Bxf4 gxf4 17. Rfe1 Rg8 18. Qc3 Bxh3 19. Rab1 Bxg2 20. b6 Bxf3+ 21. Kf1 axb6 22. Bb5+ Kf8 23. Qxf3 Rxa2 24. Bc4 Ra8 25. Qh5 Bg5 26. Ra1 Rxa1 27. Rxa1 Qb7 28. Ra6 b5 29. Bxb5 Qxb5+ 30. Qe2 Qxe2+ 31. Kxe2 Rg6 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.28"]
[Round "6"]
[White "Beukema, Constantijn"]
[Black "De Lange, Marieke"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "800"]
[BlackElo "1223"]
[PlyCount "44"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 d5 4. d4 Nf6 5. e5 Nfd7 6. Bb5 Be7 7. 0-0 0-0 8. Be3 a6 9. Bd3 f6 10. exf6 Rxf6 11. Bg5 Rf8 12. Bxe7 Qxe7 13. Bxh7+ Kxh7 14. h4 Nc6 15. Ng5+ Kg8 16. Qd3 Nf6 17. Ne2 e5 18. Ng3 e4 19. N3xe4 dxe4 20. Qc4+ Kh8 21. Qe2 Nxd4 22. f3 Nxe2+ 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.28"]
[Round "7"]
[White "Wilde, Christian"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1185"]
[BlackElo "800"]
[PlyCount "75"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. g3 Bc5 5. Nge2 0-0 6. Bg2 d6 7. Na4 b5 8. Nxc5 dxc5 9. Bxc6 Rb8 10. Bg2 bxc4 11. Qa4 Rb4 12. Qxa7 Bg4 13. f3 Bf5 14. e4 Be6 15. Qxc5 Qd6 16. Qxd6 cxd6 17. 0-0 d5 18. exd5 Bxd5 19. a4 e4 20. Nc3 exf3 21. Bxf3 Bxf3 22. Rxf3 Re8 23. Kf2 Rb6 24. Re3 Rxe3 25. dxe3 h6 26. a5 Ra6 27. h3 g5 28. e4 Nd7 29. Be3 Kg7 30. Bd4+ Kg6 31. g4 f6 32. Nd5 h5 33. Nb6 Nxb6 34. Bxb6 hxg4 35. hxg4 Kf7 36. Ke3 Ke6 37. Kd4 Kd6 38. Kxc4 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.27"]
[Round "5"]
[White "Beukema, Constantijn"]
[Black "Hoornstra, Ischa"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "800"]
[BlackElo "983"]
[PlyCount "90"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Bg4 5. Bd3 Nc6 6. 0-0 Ne5 7. h3 Nxf3+ 8. Kh1 Bxh3 9. Qxf3 Bg4 10. Qg3 e6 11. Bb5+ Ke7 12. e5 dxe5 13. Qxe5 Rc8 14. Ne4 Qc7 15. Qxc7+ Rxc7 16. Nxf6 Kxf6 17. d3 a6 18. f3 Bh5 19. Bc4 g5 20. Be3 Bg6 21. Bd2 Bd6 22. Bc3+ Be5 23. Rae1 Bxc3 24. bxc3 h5 25. Re2 b5 26. Bb3 a5 27. a4 b4 28. cxb4 cxb4 29. c4 bxc3 30. Rc1 Bxd3 31. Re3 Rd8 32. Rd1 c2 33. Bxc2 Rxc2 34. Rexd3 Rxd3 35. Rxd3 Rc4 36. Ra3 g4 37. fxg4 hxg4 38. Kh2 Ke5 39. Re3+ Re4 40. Rxe4+ Kxe4 41. Kg3 f5 42. Kh4 Kf4 43. Kh5 Kg3 44. Kg5 Kxg2 45. Kf4 Kf2 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.27"]
[Round "4"]
[White "Kaiser, Anton"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1192"]
[BlackElo "800"]
[PlyCount "37"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bg5 0-0 6. 0-0 h6 7. Bxf6 Qxf6 8. Nc3 d6 9. Nd5 Qe6 10. Nxc7 Qd7 11. Nxa8 b6 12. c3 Bb7 13. Nxb6 axb6 14. b4 Bxf2+ 15. Rxf2 Qc8 16. Qe1 Ba6 17. a4 Bxb5 18. axb5 Na7 19. Rxa7 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.26"]
[Round "2"]
[White "Beukema, Constantijn"]
[Black "Parren, Ashley"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "800"]
[BlackElo "1290"]
[PlyCount "36"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. Nc3 Qd8 8. 0-0 Bg4 9. h3 Bh5 10. Re1 Qf6 11. Nxe5 Bxd1 12. Nxc6+ Kd7 13. Ne5+ Kc8 14. Nxd1 Bd6 15. Ng4 Qg6 16. d3 b6 17. Ne5 Re8 18. Nxg6 Rxe1# 0-1

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.26"]
[Round "3"]
[White "Hoferichter, Michael"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1188"]
[BlackElo "800"]
[PlyCount "47"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Be6 4. Bg5 g6 5. Nf3 Bg7 6. e3 0-0 7. Bd3 Nc6 8. h3 h6 9. Bf4 Bf5 10. Bxf5 gxf5 11. Nh4 e6 12. g4 fxg4 13. hxg4 Ne4 14. a3 Nxc3 15. bxc3 dxc4 16. Qc2 Re8 17. 0-0-0 Bf6 18. Ng2 Qd5 19. Bxc7 Qxg2 20. Rxh6 Kg7 21. Qh7+ Kf8 22. Bd6+ Ne7 23. Rxf6 Qxg4 24. Qxf7# 1-0

[Event "Maastricht Limburg op-C 6th"]
[Site "Maastricht"]
[Date "2012.05.25"]
[Round "1"]
[White "Ousmane, Tijany"]
[Black "Beukema, Constantijn"]
[Result "1-0"]
[ECO "C57"]
[WhiteElo "1519"]
[BlackElo "800"]
[PlyCount "49"]
[EventDate "2012.05.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ncb4 9. 0-0 Bc5 10. a3 Rf8 11. Qg4+ Kd6 12. Qd1 c6 13. Ne4+ Kc7 14. Nxc5 b6 15. axb4 bxc5 16. bxc5 a6 17. Qe2 Nf4 18. Qxe5+ Kb7 19. Qxg7+ Bd7 20. d4 Nh5 21. Qxh7 Nf6 22. Qd3 Re8 23. Bxa6+ Kb8 24. Bf4+ Ka7 25. Bc8+ 1-0

