[Event "San Vicente op 8th"]
[Site "San Vicente"]
[Date "2024.03.28"]
[Round "2"]
[White "Colijn, Stefan"]
[Black "Ceres, Dragos"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2230"]
[BlackElo "2482"]
[PlyCount "90"]
[EventDate "2024.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. h4 Bg7 5. e3 h5 6. Nf3 Bg4 7. Qd2 c6 8. Ne5 Nbd7 9. f3 Bf5 10. 0-0-0 Nxe5 11. Bxe5 b5 12. Kb1 a5 13. Bd3 Qb6 14. Bxf5 gxf5 15. Qd3 e6 16. e4 b4 17. Na4 Qb5 18. Nc5 fxe4 19. fxe4 Qxd3 20. Rxd3 Rg8 21. Rf1 Ng4 22. Bd6 Nh6 23. e5 Nf5 24. Rxf5 exf5 25. Rg3 0-0-0 26. Rg5 f4 27. a3 bxa3 28. bxa3 Bh8 29. Rxh5 Rxg2 30. Rf5 Rxd6 31. exd6 Bxd4 32. Nb3 Bc3 33. Rxf4 Kd7 34. Rf3 Be5 35. Rxf7+ Kxd6 36. Nxa5 c5 37. c4 Bc3 38. Nb7+ Ke6 39. Rf3 Bd4 40. Na5 dxc4 41. Nxc4 Kd7 42. Rh3 Kc6 43. h5 Kb5 44. Nd6+ Kc6 45. Nc4 Kb5 1/2-1/2

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.12"]
[Round "9"]
[White "Colijn, Stefan"]
[Black "Tsarsitalidis, Konstantinos"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2251"]
[BlackElo "2172"]
[PlyCount "61"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nc3 Nbd7 4. e4 e5 5. Be3 Be7 6. g4 h5 7. gxh5 Rxh5 8. Be2 Rh8 9. Qd2 c6 10. a4 Qc7 11. Nf3 Nf8 12. a5 Ng4 13. Bg5 Ne6 14. Bxe7 Qxe7 15. a6 Nf4 16. Bf1 bxa6 17. dxe5 dxe5 18. 0-0-0 f6 19. Bc4 Rh3 20. Ng1 Rxc3 21. Qxc3 Nxf2 22. Ne2 Nxh1 23. Nxf4 Nf2 24. Bb3 Bd7 25. Ng6 Nxd1 26. Qc4 Be6 27. Qxc6+ Qd7 28. Qxa8+ Kf7 29. Nf8 Qd4 30. Bxe6+ Ke7 31. Qb7+ 1-0

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.11"]
[Round "8"]
[White "Triantos, Konstantinos"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2176"]
[BlackElo "2251"]
[PlyCount "131"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bg5 Bd6 6. Bb5+ c6 7. Qe2+ Be6 8. Bd3 0-0 9. 0-0 Nbd7 10. Ne5 Qb6 11. c3 Rae8 12. Be3 Ne4 13. Nd2 f5 14. f4 Ndf6 15. Ndf3 Qc7 16. Rae1 a5 17. a4 Bf7 18. Nxf7 Rxf7 19. Ne5 Rfe7 20. c4 Bb4 21. Rc1 dxc4 22. Bxc4+ Kh8 23. Qf3 g6 24. d5 Bd2 25. Rcd1 Bxe3+ 26. Qxe3 cxd5 27. Bxd5 Qc5 28. Qxc5 Nxc5 29. Bc4 Rc8 30. b3 Nfe4 31. Rfe1 Kg7 32. Bd5 Nc3 33. Rd2 Rd8 34. Rc2 N5xa4 35. bxa4 Nxd5 36. Rd2 Kf6 37. Red1 Ke6 38. Nf3 Red7 39. Ng5+ Ke7 40. Re2+ Kf6 41. Re6+ Kg7 42. g3 h6 43. Nf3 Nc7 44. Rxg6+ Kxg6 45. Ne5+ Kg7 46. Rxd7+ Rxd7 47. Nxd7 b5 48. Nc5 bxa4 49. Nxa4 Kf6 50. Kf2 Ke6 51. Kf3 Nd5 52. h3 h5 53. g4 h4 54. Nc5+ Kf6 55. Nd7+ Ke7 56. Nc5 Kf6 57. Nd7+ Kg6 58. Ne5+ Kg7 59. gxf5 a4 60. Nc4 Nf6 61. Ke3 Ng8 62. Kd4 Kf6 63. Ne3 Ne7 64. Kc4 Nxf5 65. Ng2 Ke6 66. Kb4 1/2-1/2

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.10"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Tsarsitalidis, Christos"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2251"]
[BlackElo "2022"]
[PlyCount "87"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Bg6 6. 0-0 Nh6 7. a4 Be7 8. a5 a6 9. c3 0-0 10. b4 Nf5 11. Nbd2 Nd7 12. Nb3 h5 13. Ne1 h4 14. g4 hxg3 15. hxg3 f6 16. Nd3 fxe5 17. dxe5 Qc7 18. Nf4 Bf7 19. Bh5 Nxe5 20. Bxf7+ Rxf7 21. Nxe6 Qc8 22. Nf4 g5 23. Nd3 Nxd3 24. Qxd3 Qe6 25. Bd2 Raf8 26. Rae1 Qh6 27. Kg2 Qh5 28. Qe2 g4 29. Rh1 Qg6 30. Qe6 Qxe6 31. Rxe6 Bd6 32. Rg6+ Rg7 33. Rxg7+ Kxg7 34. Nd4 Kg6 35. Nxf5 Kxf5 36. Rh7 Ke4 37. Rxb7 Kd3 38. Bh6 Kxc3 39. Bxf8 Bxf8 40. Rb6 Bxb4 41. Rxc6+ Kb3 42. Rxa6 d4 43. Ra7 d3 44. Rd7 1-0

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.09"]
[Round "6"]
[White "Li, Guohao"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2042"]
[BlackElo "2251"]
[PlyCount "95"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c6 4. Nc3 dxc4 5. a4 Bb4 6. e4 b5 7. Bd2 Nf6 8. e5 Bxc3 9. bxc3 Nd5 10. Ng5 f5 11. exf6 gxf6 12. Qh5+ Kd7 13. Ne4 Qe8 14. Qf3 Qg6 15. g3 Kc7 16. Bf4+ e5 17. dxe5 Bg4 18. exf6+ Kd8 19. Qg2 Re8 20. f3 Nxf4 21. gxf4 Bxf3 22. Qxf3 Qxe4+ 23. Kf2 Nd7 24. f7 Qxf3+ 25. Kxf3 Rf8 26. Rg1 Ke7 27. Rg5 Rxf7 28. Re1+ Kd6 29. Rd1+ Kc7 30. axb5 h6 31. Rh5 Re8 32. Bxc4 Rf6 33. Rd4 Ne5+ 34. Kg2 Rg6+ 35. Kf1 Ng4 36. Bf7 Ne3+ 37. Ke2 Rg2+ 38. Kf3 Re7 39. Rxh6 Rg7 40. Rxc6+ Kb7 41. Re6 Rexf7 42. Rxe3 Rh7 43. Kg2 Kb6 44. Re5 Rh4 45. Kg3 Rfh7 46. Rd6+ Kc7 47. Rc6+ Kd8 48. Rd5+ 1-0

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.08"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Iskos, Alexandros"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2251"]
[BlackElo "2156"]
[PlyCount "86"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 Bd6 5. c3 0-0 6. Bxd6 Qxd6 7. f4 c5 8. Qf3 b5 9. Bd3 c4 10. Bc2 Bb7 11. Ne2 Qc6 12. Ng3 Nbd7 13. 0-0 a5 14. Rae1 Rab8 15. e4 dxe4 16. Ndxe4 Qc7 17. Qf2 Nxe4 18. Nxe4 Bxe4 19. Rxe4 g6 20. Re3 Rfc8 21. g4 Nf6 22. Qh4 Nd5 23. Re5 b4 24. f5 bxc3 25. bxc3 Rb2 26. fxe6 fxe6 27. Be4 Qd8 28. Qh6 Rb7 29. Rxe6 Rg7 30. Bxd5 Qxd5 31. Qe3 Qd7 32. Qe5 Rf8 33. Rxf8+ Kxf8 34. h3 h5 35. Ra6 Qb7 36. Qd6+ Kg8 37. Rb6 Qf3 38. Rb8+ Kh7 39. Qf8 Qg3+ 40. Kf1 Qxh3+ 41. Kf2 Qh4+ 42. Kf1 Qh3+ 43. Kf2 Qh4+ 1/2-1/2

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.07"]
[Round "4"]
[White "Androutsopoulos Agiotatos, Vasilios"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2101"]
[BlackElo "2251"]
[PlyCount "74"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Nb5 Bc7 8. f4 Bd7 9. Nxd4 Nc6 10. Ngf3 Nge7 11. Bd3 a5 12. Bd2 axb4 13. axb4 Nxd4 14. Nxd4 Bb6 15. c3 0-0 16. 0-0 Bxd4+ 17. cxd4 Qb6 18. Be3 Bb5 19. Qe2 Bxd3 20. Qxd3 Rxa1 21. Rxa1 Qxb4 22. Bd2 Qb6 23. Rb1 Qa6 24. Qxa6 bxa6 25. Rb6 Nf5 26. Rxa6 h5 27. Bc3 Rc8 28. Ra3 Rb8 29. Kf2 Rb1 30. g3 Rc1 31. h3 Rc2+ 32. Kf3 Rh2 33. Ba1 Kh7 34. Rd3 h4 35. Bc3 hxg3 36. Be1 g2 37. Kf2 Rh1 0-1

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.06"]
[Round "3"]
[White "Colijn, Stefan"]
[Black "Mohammad, Nubairshah Shaikh"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2251"]
[BlackElo "2430"]
[PlyCount "52"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Nc3 d5 6. exd5 exd5 7. 0-0 d4 8. Ne2 Be7 9. d3 h6 10. c3 0-0 11. Re1 Re8 12. cxd4 cxd4 13. a3 a5 14. Qa4 Bc5 15. b4 Bb6 16. b5 Ne5 17. Nxe5 Rxe5 18. Bd2 Bf5 19. Nf4 Rxe1+ 20. Rxe1 Qd7 21. Re5 Re8 22. Rxe8+ Qxe8 23. h4 g5 24. hxg5 hxg5 25. Nh3 Qe2 26. Bxa5 Bxa5 0-1

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.06"]
[Round "2"]
[White "Colijn, Stefan"]
[Black "Tsilidis, Christos"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2251"]
[BlackElo "1957"]
[PlyCount "96"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. dxc5 e5 6. Bg5 Bxc5 7. Bxf6 gxf6 8. Nd2 Be6 9. Ngf3 Qb6 10. b4 Be7 11. a3 Rc8 12. Be2 Rg8 13. g3 a6 14. 0-0 Bh3 15. Re1 f5 16. c4 e4 17. c5 Qc7 18. Nd4 Nxd4 19. exd4 f4 20. Qb3 Kf8 21. Bf1 Bxf1 22. Kxf1 Qd7 23. Nxe4 dxe4 24. Rxe4 fxg3 25. hxg3 Rg4 26. Rae1 Rxe4 27. Rxe4 Bf6 28. Rf4 Re8 29. Kg2 Bg5 30. Rf3 Re6 31. Rf5 h6 32. Qf3 f6 33. d5 Re1 34. c6 Qc7 35. Qc3 Re8 36. f4 Qc8 37. Qd3 Re2+ 38. Qxe2 Qxf5 39. cxb7 Qxd5+ 40. Qf3 Qd2+ 41. Kh3 Bxf4 42. Qxf4 Qd7+ 43. Kh4 Qxb7 44. Qxh6+ Ke8 45. Qh8+ Kd7 46. Qg7+ Kc6 47. Qxb7+ Kxb7 48. Kh5 Kc6 1-0

[Event "Thessaloniki op 3rd"]
[Site "Thessaloniki"]
[Date "2023.08.05"]
[Round "1"]
[White "Theoharidis, Georgios"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C26"]
[WhiteElo "1855"]
[BlackElo "2251"]
[PlyCount "100"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. d4 exd4 4. Qxd4 Nc6 5. Qd3 Bb4 6. Bd2 0-0 7. 0-0-0 Re8 8. Nge2 Bc5 9. Bg5 h6 10. Bxf6 Qxf6 11. Nd5 Qd8 12. f4 d6 13. f5 Ne5 14. Qg3 c6 15. f6 g6 16. Ne7+ Rxe7 17. fxe7 Qxe7 18. Nf4 Qg5 19. Qxg5 hxg5 20. Nd3 Be3+ 21. Kb1 Bg4 22. Nxe5 Bxd1 23. Bc4 Bxc2+ 24. Kxc2 dxe5 25. Rd1 b5 26. Bb3 c5 27. Bd5 Rc8 28. Rd3 Bd4 29. Rf3 Rc7 30. Rf6 Kg7 31. Rc6 Re7 32. g4 c4 33. Rc8 a5 34. Ra8 a4 35. Bc6 Rc7 36. Bxb5 Rb7 37. Ra5 f5 38. gxf5 gxf5 39. exf5 Kf6 40. Bxc4 Rxb2+ 41. Kd1 Rxh2 42. Bd3 g4 43. Ra6+ Kg5 44. f6 Rf2 45. f7 Rxf7 46. Rxa4 g3 47. Ra6 Rf2 48. Rg6+ Kf4 49. a4 g2 50. Ke1 Ra2 0-1

[Event "Kavala op 32nd"]
[Site "Kavala"]
[Date "2023.07.31"]
[Round "5"]
[White "Neelash, Saha"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2435"]
[BlackElo "2251"]
[PlyCount "67"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. Nc3 dxc4 5. a4 Nc6 6. e3 Na5 7. Nd2 c5 8. Nxc4 Nxc4 9. Bxc4 cxd4 10. exd4 Nf6 11. 0-0 Be7 12. d5 Qc7 13. b3 exd5 14. Nxd5 Nxd5 15. Bxd5 0-0 16. Bb2 Qf4 17. Re1 Bf6 18. g3 Qh6 19. Ra2 a5 20. Qf3 Ra6 21. Ba3 Rd8 22. Rae2 Be6 23. Bxe6 fxe6 24. Qxb7 Raa8 25. Rxe6 Qh5 26. Qe4 h6 27. Kg2 Rab8 28. Bd6 Rxb3 29. Qc4 Qf3+ 30. Kg1 Kh7 31. Rxf6 Qd3 32. Rxh6+ gxh6 33. Qf7+ Kh8 34. Be5# 1-0

[Event "Kavala op 32nd"]
[Site "Kavala"]
[Date "2023.07.30"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Richter, Michael"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2251"]
[BlackElo "2449"]
[PlyCount "61"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 0-0 8. Bd3 dxc4 9. bxc4 e5 10. 0-0 Re8 11. Ng5 Nf8 12. Nce4 Nxe4 13. Nxe4 Bc7 14. d5 cxd5 15. cxd5 Bf5 16. Rd1 Qxd5 17. Nf6+ gxf6 18. Bxf5 Qc6 19. Qe2 Rad8 20. Ba3 Qa4 21. Rxd8 Bxd8 22. Bxf8 Kxf8 23. Rd1 Qh4 24. Rd7 Be7 25. Rxb7 a5 26. g3 Qg5 27. Qc2 h6 28. h4 Qg8 29. Bd7 Rd8 30. Ba4 Bb4 31. Bb3 1-0

[Event "Kavala op 32nd"]
[Site "Kavala"]
[Date "2023.07.29"]
[Round "2"]
[White "Koelle, Tobias"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2438"]
[BlackElo "2251"]
[PlyCount "101"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. Bg5 Be7 5. Bxe7 Qxe7 6. Nbd2 Nf6 7. Rc1 0-0 8. g3 c6 9. Bg2 Nbd7 10. 0-0 e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. cxd5 cxd5 14. b3 Re8 15. Re1 Bf5 16. Nf3 Qb2 17. Qd2 Qxd2 18. Nxd2 Rac8 19. Nf3 Rxc1 20. Rxc1 Rc8 21. Rxc8+ Bxc8 22. Nd4 a5 23. f3 Kf8 24. Kf2 Ke7 25. Ke3 Kd6 26. Kd2 Bd7 27. Kc3 Kc5 28. a3 b6 29. e3 Ne8 30. Bf1 Nc7 31. Bd3 h6 32. h4 g6 33. g4 Ne6 34. h5 gxh5 35. b4+ axb4+ 36. axb4+ Kd6 37. Nf5+ Ke5 38. gxh5 d4+ 39. exd4+ Kf4 40. Nxh6 Ng7 41. Nxf7 Nxh5 42. Ne5 Be6 43. Bc4 Bf5 44. Bd5 Bb1 45. Nc4 b5 46. Na3 Bh7 47. Nxb5 Ke3 48. Nd6 Nf4 49. Kc4 Bd3+ 50. Kc5 Ne2 51. Nc4+ 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.22"]
[Round "9"]
[White "Colijn, Stefan"]
[Black "Szikszai, Bertalan"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2277"]
[BlackElo "2205"]
[PlyCount "200"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. c3 Nc6 5. e3 d5 6. Nbd2 h6 7. Bd3 Be7 8. Ne5 Nxe5 9. Bxe5 0-0 10. h4 Nd7 11. Bf4 Qb6 12. Rb1 Bd6 13. Qg4 Bxf4 14. Qxf4 cxd4 15. cxd4 Re8 16. Nf3 f6 17. Qg3 Qb4+ 18. Kf1 Re7 19. h5 e5 20. Bf5 Nf8 21. Qg4 Qc4+ 22. Kg1 Qd3 23. Bxd3 Bxg4 24. Nh4 e4 25. Bc2 Rc8 26. Bb3 Rd7 27. f3 exf3 28. Nxf3 Bf5 29. Re1 Be4 30. Nd2 f5 31. Nxe4 fxe4 32. Rh4 Kh8 33. Rf4 Nh7 34. Rf5 Nf6 35. Kh2 a6 36. Kh3 Rc6 37. g4 Kh7 38. g5 hxg5 39. Rxg5 Rcd6 40. Kh4 Ng8 41. Rf1 Rf6 42. Rff5 Ne7 43. Re5 Rf3 44. Bxd5 Nxd5 45. Rxd5 Rxd5 46. Rxd5 Rxe3 47. Rd7 Re2 48. Rxb7 Rd2 49. Kg4 e3 50. Kf3 e2 51. Kf2 Rxd4 52. Kxe2 Rh4 53. Ra7 Rh2+ 54. Kf3 Rxb2 55. Rxa6 Rb4 56. Kg3 Rb5 57. Kg4 Rb4+ 58. Kg3 Rb5 59. Ra4 Kh6 60. Rh4 Rb2 61. Rh2 Rb4 62. Kf3 g6 63. hxg6+ Kxg6 64. Ke3 Kf5 65. Kd3 Ke5 66. Kc3 Rb1 67. Rd2 Ke6 68. Kc4 Rc1+ 69. Kb5 Rb1+ 70. Ka6 Ra1 71. Ka5 Rb1 72. Rd8 Ke7 73. Rd4 Rb2 74. a4 Ke6 75. Ka6 Ke7 76. Rd5 Rb4 77. a5 Ke6 78. Rd1 Rb2 79. Ka7 Ke7 80. Rd3 Rb1 81. a6 Rb2 82. Rd1 Rb3 83. Rd4 Rb1 84. Rd5 Rb2 85. Rd3 Rb1 86. Rd2 Rb3 87. Rd5 Rb1 88. Ka8 Rb2 89. Rd1 Rb3 90. Rd2 Rb1 91. Rd4 Rb2 92. Rd1 Rb3 93. Rd2 Rb1 94. Rd3 Rb2 95. Rh3 Kd7 96. Rh7+ Kc8 97. Rb7 Ra2 98. a7 Rh2 99. Rb3 Rc2 100. Rc3+ Rxc3 1/2-1/2

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.21"]
[Round "8"]
[White "Konyves, Almos"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2300"]
[BlackElo "2277"]
[PlyCount "71"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Be7 8. Bd3 0-0 9. Nge2 Re8 10. Qc2 Nbd7 11. 0-0 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. d5 Nf6 15. Rac1 Qe5 16. Rfd1 Bg4 17. dxc6 bxc6 18. Rd4 c5 19. Rd2 Rad8 20. Rxd8 Rxd8 21. Ng3 Bf5 22. h3 c4 23. Rb1 Rd3 24. Nce2 Be6 25. Nd4 Bd5 26. Nge2 g5 27. b3 Qc7 28. Rc1 Qa5 29. bxc4 Ba8 30. Qb2 Nd7 31. c5 Rd2 32. Qb3 Rd3 33. Qb1 Kh7 34. c6 Nb6 35. Ng3 Qd2 36. Nxe4 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.20"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Saypuri, Srithan"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2277"]
[BlackElo "2175"]
[PlyCount "87"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. Bc4 Nf6 5. 0-0 Be7 6. e5 Ne4 7. Bd5 Nc5 8. Nxd4 0-0 9. Nf5 d6 10. Nxe7+ Nxe7 11. Be3 Nf5 12. Bxc5 dxc5 13. Nc3 c6 14. Be4 Qxd1 15. Rfxd1 Ne7 16. Rd6 Be6 17. f4 Rac8 18. Rad1 Nf5 19. Bxf5 Bxf5 20. R1d2 f6 21. exf6 Rxf6 22. Rxf6 gxf6 23. g4 Be6 24. f5 Bd5 25. Nxd5 cxd5 26. Rxd5 Rc7 27. Kf2 b6 28. a4 Re7 29. Kf3 Kg7 30. a5 h5 31. h3 hxg4+ 32. hxg4 Kh6 33. axb6 axb6 34. Rd6 Kg5 35. Rd8 Re1 36. Rg8+ Kh6 37. Rg6+ Kh7 38. Rxf6 Rf1+ 39. Kg3 Rc1 40. Rxb6 Rxc2 41. Kf4 Kg7 42. Kg5 Rd2 43. Rb7+ Kf8 44. Kg6 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.19"]
[Round "6"]
[White "Ngo, Bach"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2293"]
[BlackElo "2277"]
[PlyCount "53"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Nf3 Bb4 5. Qb3 c5 6. a3 Bxc3+ 7. Qxc3 Ne4 8. Qd3 Nc6 9. e3 Qa5+ 10. Nd2 b6 11. Be2 Ba6 12. 0-0 d5 13. Nxe4 fxe4 14. Qc2 cxd4 15. cxd5 Bxe2 16. Qxc6+ Ke7 17. Qxe6+ Kf8 18. b4 Qa4 19. exd4 Qe8 20. Re1 Bd3 21. f3 Rd8 22. Bg5 Qxe6 23. dxe6 Rxd4 24. Rac1 Rc4 25. Rxc4 Bxc4 26. Rxe4 b5 27. Rd4 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.18"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Doraszelski, Alexander"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2277"]
[BlackElo "2132"]
[PlyCount "130"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 Bd6 7. Nc3 Be7 8. Ne2 0-0 9. Ng3 d5 10. Be2 Ne8 11. d3 exd3 12. Qxd3 Bf6 13. Rd1 c6 14. 0-0 Bxd4 15. Qxd4 Be6 16. c4 Nf6 17. cxd5 Nxd5 18. Nh5 f6 19. Bd3 Qe7 20. Qe4 g6 21. Nf4 Nxf4 22. Qxf4 Rfd8 23. Bc4 Bxc4 24. Qxc4+ Kg7 25. h4 Rd7 26. Rd4 Rad8 27. Rfd1 Rxd4 28. Rxd4 Rxd4 29. Qxd4 c5 30. Qd5 Qc7 31. a4 a6 32. a5 Qxa5 33. Qxb7+ Kh6 34. g4 Qb4 35. Qc8 Kg7 36. Qd7+ Kg8 37. Qe6+ Kg7 38. Kg2 a5 39. Kg3 Qc3 40. Kf3 Qb4 41. Qe7+ Kg8 42. Qe8+ Kg7 43. Qd7+ Kg8 44. Qe6+ Kg7 45. Qd5 Qc3 46. Qb7+ Kg8 47. Qa8+ Kg7 48. Qa7+ Kg8 49. Qb7 h5 50. gxh5 gxh5 51. Qd5+ Kg7 52. Kf4 Kg6 53. Qg8+ Kh6 54. Qh8+ Kg6 55. Qg8+ Kh6 56. Qh8+ Kg6 57. Qe8+ Kh6 58. f3 Qxb3 59. Qf8+ Kg6 60. Qxc5 a4 61. Qf5+ Kg7 62. Qd7+ Kg6 63. Qe8+ Kg7 64. Qd7+ Kg6 65. Qe8+ Kg7 1/2-1/2

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.17"]
[Round "4"]
[White "To, Nhat Minh"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2355"]
[BlackElo "2277"]
[PlyCount "109"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. h3 Nf6 4. g4 b6 5. Rg1 Bb7 6. Bf4 g6 7. e3 d6 8. c4 Nbd7 9. Nc3 Ne4 10. Nxe4 fxe4 11. Nd2 Bg7 12. Qc2 0-0 13. Nxe4 Rxf4 14. exf4 Qf8 15. Nc3 Qxf4 16. Ne2 Qh2 17. Qd3 c5 18. Qg3 Qxg3 19. Rxg3 cxd4 20. Rd1 e5 21. g5 Rc8 22. b3 Nc5 23. Bg2 Bxg2 24. Rxg2 Rf8 25. Rg4 e4 26. Nxd4 Nd3+ 27. Rxd3 exd3 28. Re4 d2+ 29. Kxd2 Rxf2+ 30. Kd3 Rxa2 31. Re8+ Kf7 32. Ra8 Ra3 33. Nb5 Rxb3+ 34. Ke4 Be5 35. Rxa7+ Kg8 36. Rb7 Rxh3 37. Rxb6 Rg3 38. Rb8+ Kf7 39. Rb7+ Ke6 40. Nc7+ Kd7 41. Nb5+ Kc6 42. Rc7+ Kb6 43. Rxh7 Rxg5 44. Rd7 Kc5 45. Rc7+ Kb6 46. Rd7 Rg1 47. Kd5 Rd1+ 48. Ke6 g5 49. Kf5 Bf4 50. Nc3 Kc6 51. Nxd1 Kxd7 52. Nc3 Kc6 53. Ne4 Be3 54. Ke6 Bc1 55. Nxd6 1/2-1/2

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.16"]
[Round "3"]
[White "Colijn, Stefan"]
[Black "Szeberenyi, Adam"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2277"]
[BlackElo "2318"]
[PlyCount "49"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 c5 5. Nbd2 Nc6 6. c3 Bd6 7. Bg3 Qe7 8. Ne5 h5 9. h3 h4 10. Bh2 Bd7 11. Bd3 g5 12. Qf3 Bxe5 13. dxe5 Nh5 14. e4 0-0-0 15. 0-0-0 c4 16. Bc2 Qc5 17. exd5 exd5 18. Qxf7 Rdf8 19. Ne4 Rxf7 20. Nxc5 Rxf2 21. Nxd7 Kxd7 22. Rxd5+ Ke7 23. Rhd1 Rd8 24. Rxd8 Nxd8 25. Bg1 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.15"]
[Round "2"]
[White "Bhagat, Kush"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2186"]
[BlackElo "2277"]
[PlyCount "45"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 f6 6. Bd3 e5 7. Qh5+ g6 8. Bxg6+ hxg6 9. Qxh8 exf4 10. Qxg8 Qe7+ 11. Ne2 Bf5 12. Qxd5 Be4 13. Qc4 b5 14. Qxb5 Rb8 15. Qc4 f3 16. 0-0 fxe2 17. Qxe2 Bf5 18. Qc4 Kd7 19. Na3 Qh7 20. Nb5 Rc8 21. Qd5+ Ke8 22. Rae1+ Ne7 23. Nd6+ 1-0

[Event "Balatonlelle Rigo Memorial IM 2nd"]
[Site "Balatonlelle"]
[Date "2023.06.14"]
[Round "1"]
[White "Colijn, Stefan"]
[Black "Csonka, Attila Istvan"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2277"]
[BlackElo "2302"]
[PlyCount "104"]
[EventDate "2023.06.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[EventCategory "1"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. Nbd2 Bb7 5. e3 Be7 6. Bd3 c5 7. c3 d6 8. Qe2 0-0 9. a3 Nc6 10. Bg3 d5 11. Rd1 Re8 12. dxc5 bxc5 13. e4 Qb6 14. b4 cxb4 15. cxb4 a5 16. e5 Nd7 17. b5 Ncb8 18. h4 Nc5 19. Bxh7+ Kxh7 20. Ng5+ Bxg5 21. hxg5+ Kg8 22. Qh5 Kf8 23. g6 Qxb5 24. Rb1 Qd3 25. gxf7 Re7 26. Bh4 Nc6 27. Bxe7+ Kxe7 28. Rh3 Qd4 29. Rf3 Qxe5+ 30. Qxe5 Nxe5 31. Rc3 Ba6 32. Rb6 Kxf7 33. Nf3 Ned3+ 34. Kd1 Nxf2+ 35. Kc2 Nfe4 36. Ng5+ Nxg5 37. Rxc5 Bf1 38. g3 Ne4 39. Rc7+ Kf6 40. Rbb7 Nd6 41. Rb6 Rc8 42. Rxc8 Nxc8 43. Rb8 Nd6 44. Rf8+ Nf7 45. Ra8 d4 46. Rxa5 Nd6 47. Ra8 Ke5 48. a4 Bg2 49. Rg8 Be4+ 50. Kb3 Bd5+ 51. Kc2 Ke4 52. Rxg7 Ke3 0-1

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2023.04.16"]
[Round "10.3"]
[White "Colijn, Stefan"]
[Black "Vrolijk, Liam"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2264"]
[BlackElo "2479"]
[PlyCount "106"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Liege Crelel"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be6 7. Nc3 Nbd7 8. e3 h6 9. Bh4 g5 10. Bg3 Nh5 11. Bd3 Nxg3 12. hxg3 Bg7 13. Bf5 Qe7 14. g4 0-0-0 15. 0-0-0 Kb8 16. Kb1 Rhe8 17. Rhe1 Nb6 18. Ne2 Nc4 19. Ng3 Nd6 20. Bxe6 Qxe6 21. Nf5 Nxf5 22. gxf5 Qe4 23. Rh1 Qg4 24. Rh3 Rd6 25. Rg3 Qe4 26. Qxe4 dxe4 27. Nd2 c5 28. Rg4 cxd4 29. Rxe4 Rxe4 30. Nxe4 Rd5 31. f6 dxe3 32. Kc2 Rxd1 33. Kxd1 exf2 34. Ke2 Bf8 35. Kxf2 Kc7 36. Ke3 Kd7 37. a3 Ke6 38. g4 Bd6 39. b4 Kd5 40. Kd3 Be5 41. a4 b6 42. b5 Ke6 43. Nd2 Kd5 44. Ne4 Bh2 45. Nd2 Bf4 46. Nc4 Bc7 47. Ne3+ Ke5 48. Kc4 Bd8 49. Nf5 h5 50. Kd3 Bxf6 51. Nd4 h4 52. Ke3 Kd5 53. Nc6 a5 0-1

[Event "Paphos op 1st"]
[Site "Paphos"]
[Date "2023.04.10"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Ceres, Dragos"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2293"]
[BlackElo "2409"]
[PlyCount "82"]
[EventDate "2023.04.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CYP"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. 0-0 Bg4 5. c4 e6 6. Qb3 Qb6 7. d3 Na6 8. Be3 Bc5 9. d4 Be7 10. c5 Qxb3 11. axb3 Bxf3 12. exf3 0-0 13. Re1 Nb4 14. Re2 b6 15. f4 Ng4 16. cxb6 axb6 17. Na3 Nd3 18. Rd2 Nxb2 19. Rxb2 Rxa3 20. Rxa3 Bxa3 21. Ra2 Bb4 22. Ra6 Rb8 23. h3 Nh6 24. g4 f5 25. g5 Nf7 26. Ra7 Nd6 27. h4 Nb5 28. Ra4 Bd6 29. Bf1 Nc7 30. Ra7 Kf8 31. h5 Ke8 32. Be2 Kd8 33. Kg2 Kc8 34. Kg3 Ra8 35. Rxa8+ Nxa8 36. h6 gxh6 37. gxh6 Bf8 38. Bh5 Kd7 39. Bf7 Ke7 40. Bg8 Bxh6 41. Kh4 Nc7 0-1

[Event "Paphos op 1st"]
[Site "Paphos"]
[Date "2023.04.08"]
[Round "3"]
[White "Colijn, Stefan"]
[Black "Mastrovasilis, Athanasios"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2293"]
[BlackElo "2497"]
[PlyCount "82"]
[EventDate "2023.04.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CYP"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. h3 Bg7 8. 0-0 0-0 9. Re1 b5 10. Bc2 Bb7 11. a4 h6 12. Nbd2 Re8 13. Nf1 Nb8 14. g4 d5 15. Ng3 c5 16. g5 hxg5 17. Bxg5 Nbd7 18. d4 cxd4 19. cxd4 Qb6 20. dxe5 Nxe5 21. Nxe5 Rxe5 22. Be3 Qc6 23. axb5 axb5 24. Rxa8+ Bxa8 25. Bd4 Rg5 26. h4 Rxg3+ 27. fxg3 dxe4 28. Re3 Qd6 29. Bxf6 Qxf6 30. Bxe4 Qb6 31. Qd3 Bxe4 32. Qxe4 Bd4 33. Kf2 Qf6+ 34. Ke2 Bxe3 35. Kxe3 Qxb2 36. g4 Qc3+ 37. Kf4 Qc4 38. Qxc4 bxc4 39. Ke4 g5 40. h5 f5+ 41. gxf5 c3 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.04.01"]
[Round "8.8"]
[White "Van Meegen, Ruud"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2282"]
[BlackElo "2275"]
[PlyCount "62"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. 0-0 g6 5. c4 d4 6. e3 Nc6 7. exd4 cxd4 8. d3 Bg7 9. Re1 0-0 10. Ne5 Nxe5 11. Rxe5 Nd7 12. Re1 a5 13. Nd2 h6 14. a3 a4 15. b4 axb3 16. Nxb3 Nb6 17. Bd2 Na4 18. Bb4 Re8 19. Qd2 Qb6 20. Rac1 Bd7 21. Na5 Bc6 22. Nxc6 bxc6 23. Bxe7 Ra7 24. Bd6 Rxe1+ 25. Qxe1 Qd8 26. c5 Nc3 27. Bxc6 Bf8 28. Qe5 Bg7 29. Qe1 Bf8 30. Qe5 Bg7 31. Qe1 Bf8 1/2-1/2

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2023.03.19"]
[Round "9.3"]
[White "Maerevoet, Sim"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2413"]
[BlackElo "2264"]
[PlyCount "40"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "KBSK Brugge"]
[BlackTeam "Mechelen"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Be7 8. Qc2 0-0 9. Bd3 Re8 10. Nf3 Ne4 11. Bxe7 Qxe7 12. Bxe4 dxe4 13. Ne5 Nd7 14. Nxd7 Bxd7 15. 0-0 Rad8 16. b4 Bg4 17. Rab1 Rd6 18. b5 Rg6 19. Kh1 Qh4 20. bxc6 Bf3 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.03.11"]
[Round "7.10"]
[White "Colijn, Stefan"]
[Black "Roos, Adrian"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2275"]
[BlackElo "2292"]
[PlyCount "121"]
[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 "Apeldoorn Amevo"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e3 cxd4 5. exd4 a6 6. Nf3 Nc6 7. Ne5 e6 8. Be2 Bd6 9. 0-0 Qc7 10. Re1 0-0 11. Bf1 Nd7 12. Nxd7 Bxd7 13. Bxd6 Qxd6 14. Na4 Rae8 15. Nb6 Nb8 16. Nxd7 Nxd7 17. c3 Rb8 18. Re3 b5 19. Bd3 Rfc8 20. Qh5 g6 21. Qe2 Rc6 22. a3 Rcb6 23. h4 a5 24. h5 b4 25. cxb4 axb4 26. a4 Qf4 27. a5 Ra8 28. Bb5 Nf6 29. Rf3 Qh4 30. Rc1 Qg5 31. axb6 Qxc1+ 32. Qf1 Qxf1+ 33. Kxf1 Ne4 34. Ke2 Rb8 35. hxg6 hxg6 36. Bd3 Nd6 37. Rh3 Rxb6 38. Rh1 Kg7 39. Rc1 Kf6 40. Rc7 g5 41. Ke3 Nb7 42. f4 gxf4+ 43. Kxf4 Na5 44. g4 Rb7 45. g5+ Kg7 46. Rc8 Nb3 47. Ke3 f6 48. gxf6+ Kxf6 49. Ra8 Rg7 50. Bc2 Rg2 51. Bxb3 Rg3+ 52. Kd2 Rxb3 53. Kc2 Re3 54. Rb8 Kf5 55. Rxb4 Ke4 56. Ra4 Re2+ 57. Kc3 Re3+ 58. Kc2 Re2+ 59. Kc3 Re3+ 60. Kc2 Re2+ 61. Kc3 1/2-1/2

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2023.03.05"]
[Round "8.2"]
[White "Colijn, Stefan"]
[Black "Milov, Leonid"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2264"]
[BlackElo "2423"]
[PlyCount "30"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Tal"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. e4 fxe4 5. Nxe4 d5 6. Nc3 Nh6 7. Qd2 Nf7 8. Be3 0-0 9. Nf3 c6 10. h4 Bg4 11. Nh2 Bc8 12. h5 gxh5 13. Qd1 Nd7 14. Qxh5 Nf6 15. Qh4 e5 1/2-1/2

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "8"]
[White "Avazkhonov, Alikhon"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "E50"]
[WhiteElo "1538"]
[BlackElo "2283"]
[PlyCount "74"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Bxc3+ 5. bxc3 d6 6. Bd3 0-0 7. Nf3 c5 8. 0-0 b6 9. e4 Nc6 10. Re1 e5 11. Nd2 cxd4 12. cxd4 Nxd4 13. Nf1 Be6 14. Ne3 Nd7 15. Bb2 Nc6 16. Rc1 Rc8 17. Bb1 Nc5 18. Nd5 Bd7 19. f4 Ne6 20. f5 Ned4 21. f6 Be6 22. Qd2 Kh8 23. Rf1 Rg8 24. Rc3 gxf6 25. Nxf6 Rg6 26. Nd5 Qg5 27. Qf2 Rcg8 28. Rg3 Qh4 29. Nf6 Rxg3 30. Nxg8 Nf3+ 31. Qxf3 Rxf3 32. Rxf3 Kxg8 33. Rg3+ Kf8 34. Ba3 Ke7 35. Bd3 Nd4 36. Re3 Qf4 37. Re1 Qd2 0-1

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "9"]
[White "Colijn, Stefan"]
[Black "Babikov, Ivan"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2283"]
[BlackElo "2239"]
[PlyCount "151"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. e3 a6 5. Qf3 c5 6. dxc5 Bxc5 7. Qg3 Nh5 8. Qf3 Nf6 9. Be2 Bb4 10. Qg3 Nh5 11. Bxh5 g6 12. Be2 Nc6 13. Nf3 Qa5 14. 0-0 Bxc3 15. bxc3 Qxc3 16. Be5 Nxe5 17. Qxe5 Qxe5 18. Nxe5 Ke7 19. c4 Rd8 20. Rfd1 f6 21. Nf3 Bd7 22. cxd5 Ba4 23. Rd4 b5 24. dxe6 Rxd4 25. Nxd4 Rc8 26. Bd1 Bxd1 27. Rxd1 b4 28. Kf1 a5 29. Ke2 a4 30. Kd2 Rc3 31. Rb1 Ra3 32. Rxb4 Rxa2+ 33. Nc2 Kxe6 34. Kc1 a3 35. Kb1 Rb2+ 36. Rxb2 axb2 37. Kxb2 Ke5 38. Kc3 f5 39. Kd3 g5 40. g3 h5 41. f4+ Kf6 42. Kd4 gxf4 43. exf4 Ke6 44. Ne3 Kf6 45. Kd5 h4 46. Kd6 hxg3 47. hxg3 Kg6 48. Ke5 Kh5 49. Kxf5 Kh6 50. g4 Kh7 51. g5 Kh8 52. Kg6 Kg8 53. f5 Kh8 54. f6 Kg8 55. Ng4 Kh8 56. Kf5 Kg8 57. g6 Kh8 58. Kg5 Kg8 59. Kh5 Kh8 60. Kh4 Kg8 61. Kg3 Kh8 62. Kf3 Kg8 63. Ke3 Kh8 64. Kd4 Kg8 65. Kd5 Kh8 66. Kd6 Kg8 67. Kd7 Kh8 68. Ke7 Kg8 69. Ke8 Kh8 70. Kd8 Kg8 71. Ke7 Kh8 72. f7 Kg7 73. f8Q+ Kxg6 74. Qf6+ Kh7 75. Qh6+ Kg8 76. Nf6# 1-0

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "10"]
[White "Colijn, Stefan"]
[Black "Balabayeva, Kseniya"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2283"]
[BlackElo "2185"]
[PlyCount "59"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d6 2. Nc3 d5 3. Bf4 c6 4. e3 Qb6 5. a3 Nf6 6. Bd3 g6 7. Nf3 Bg7 8. 0-0 h6 9. Ne5 Nbd7 10. b4 Nxe5 11. Bxe5 0-0 12. Ne2 Ne8 13. Bxg7 Nxg7 14. c4 dxc4 15. Bxc4 Bf5 16. Qb3 Rad8 17. Ng3 Be6 18. Rfd1 Bxc4 19. Qxc4 Ne6 20. Ne4 Kg7 21. a4 Nc7 22. Rdb1 Rd5 23. Nc5 Rfd8 24. a5 Qb5 25. Qxb5 Nxb5 26. Nxb7 e5 27. dxe5 Nc3 28. Re1 Rxe5 29. Rac1 Nd5 30. Nxd8 1-0

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Goncalves, Davi Sulzbacher"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2283"]
[BlackElo "2282"]
[PlyCount "132"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 4. f3 c6 5. g4 Bg6 6. h4 h6 7. e3 b5 8. Bd3 Bxd3 9. Qxd3 e6 10. Nge2 b4 11. Na4 Qa5 12. b3 Nbd7 13. e4 dxe4 14. fxe4 e5 15. dxe5 Nxg4 16. 0-0-0 Ngxe5 17. Qg3 g6 18. Nd4 Bg7 19. Nf5 Bf6 20. Nd6+ Ke7 21. h5 g5 22. Nf5+ Kf8 23. Be3 Kg8 24. Rd6 Kh7 25. Rhd1 Rad8 26. Bd4 Rhe8 27. Rxf6 Nxf6 28. Nc5 Qxa2 29. Bxe5 Rxd1+ 30. Kxd1 Qb1+ 31. Kd2 Nxh5 32. Qd3 Rxe5 33. Nd6 Nf4 34. Qd4 f6 35. Nd7 Re6 36. Nxf6+ Kg6 37. Nfe8 Qf1 38. Qg7+ Kh5 39. Nf5 Qf2+ 40. Kc1 Qe1+ 41. Kb2 Rxe4 42. Qxh6+ Kg4 43. Nfd6 Rxe8 44. Nxe8 Qxe8 45. Qf6 Qe6 46. Qd4 a5 47. Qc5 Qd5 48. Qg1+ Kf5 49. Qa7 g4 50. Qh7+ Ke5 51. Qe7+ Kf5 52. Qf8+ Kg5 53. Qe7+ Kh5 54. Qh7+ Kg5 55. Qe7+ Kg6 56. Qe8+ Qf7 57. Qe4+ Qf5 58. Qh1 g3 59. Ka2 g2 60. Qg1 Qxc2+ 61. Ka1 Qc3+ 62. Ka2 Qd2+ 63. Ka1 Kg5 64. Qc5+ Kg4 65. Qg1 Kg3 66. Qb1 Qc3+ 0-1

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Levine, David M"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2283"]
[BlackElo "2040"]
[PlyCount "91"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 4. e3 a6 5. a3 cxd4 6. exd4 Nc6 7. h3 Bf5 8. Nf3 e6 9. Be2 h6 10. 0-0 Bd6 11. Ne5 Rc8 12. Re1 0-0 13. Bf3 Qc7 14. Rc1 Nd7 15. Nxd7 Qxd7 16. Bxd6 Qxd6 17. Na4 b5 18. Nc5 Nxd4 19. b4 Nxc2 20. Rxc2 Bxc2 21. Qxc2 a5 22. Qd2 axb4 23. axb4 Ra8 24. Be2 Rfb8 25. Bf1 Ra3 26. Rc1 Qc6 27. Qd4 Qa8 28. Kh2 Ra2 29. Nd7 Rc8 30. Nb6 Rxc1 31. Nxa8 Rxa8 32. Bxb5 Ra2 33. Be2 Rcc2 34. Bf3 Rxf2 35. Kg3 Rfd2 36. Qb6 e5 37. Qd8+ Kh7 38. Bxd5 Ra3+ 39. Kh2 Rad3 40. Be4+ g6 41. Bxd3 Kg7 42. b5 e4 43. Qd4+ Kf8 44. Qxe4 Rb2 45. Qd4 Ke7 46. Qxb2 1-0

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Meera, Sai Ravi"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2283"]
[BlackElo "2064"]
[PlyCount "108"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 4. e3 Bg7 5. Nf3 0-0 6. Be2 c5 7. 0-0 Nc6 8. dxc5 Qa5 9. Nxd5 Nxd5 10. Qxd5 Be6 11. Qg5 Bxb2 12. Rab1 Bf6 13. Qh6 Bg7 14. Qh4 Qxc5 15. c4 Bxc4 16. Rfc1 b5 17. a4 a6 18. axb5 axb5 19. Nd2 Na5 20. Nxc4 Nxc4 21. Qg5 Qxg5 22. Bxg5 Na3 23. Rb3 Rfe8 24. Bxb5 Nxb5 25. Rxb5 h6 26. Bf4 Rac8 27. Rcb1 Rc2 28. h4 Rd8 29. Rb7 Rdd2 30. Bg3 Bf6 31. Rb8+ Kg7 32. Ra8 h5 33. Rbb8 Rd1+ 34. Kh2 Rc4 35. Bf4 Bxh4 36. Rg8+ Kf6 37. g3 Bg5 38. Ra6+ e6 39. Bb8 Rc2 40. Kg2 Rdd2 41. Kf3 Rxf2+ 42. Ke4 Rce2 43. Bf4 Bxf4 44. gxf4 Rh2 45. Ra7 Rh3 46. Ra3 h4 47. Rh8 Kg7 48. Re8 Rg3 49. Rc8 h3 50. Ke5 h2 51. e4 h1Q 52. f5 Qxe4+ 53. Kd6 Rd2+ 54. Ke7 exf5# 0-1

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "11"]
[White "Hajiyev, Kanan"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2183"]
[BlackElo "2283"]
[PlyCount "77"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 a5 5. a3 Bxd2+ 6. Qxd2 b6 7. g3 Bb7 8. Bg2 0-0 9. Nc3 Ne4 10. Qc2 f5 11. 0-0 d6 12. h4 Nxc3 13. Qxc3 Nd7 14. d5 e5 15. Ng5 Qf6 16. Ne6 Rfc8 17. e4 Nf8 18. exf5 Qxf5 19. Ng5 h6 20. Bh3 Qg6 21. Ne6 c6 22. Qb3 cxd5 23. cxd5 Nd7 24. Rac1 Rxc1 25. Rxc1 Rc8 26. Rxc8+ Bxc8 27. Qc3 Nc5 28. Nxc5 Bxh3 29. Kh2 Bg4 30. Ne6 Bxe6 31. dxe6 Qxe6 32. Qc6 Qf6 33. Kg1 Qe6 34. Qxb6 a4 35. Qb4 d5 36. Qxa4 e4 37. Qa8+ Kh7 38. a4 Qg4 39. Qxd5 1-0

[Event "Titled Tuesday intern op 14th Feb Early"]
[Site "Chess.com INT"]
[Date "2023.02.14"]
[Round "6"]
[White "Mazurkiewicz, Michal"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2145"]
[BlackElo "2283"]
[PlyCount "68"]
[EventDate "2023.02.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. g3 Bc5 5. Bg2 d6 6. 0-0 a6 7. c3 Ba7 8. b4 0-0 9. a4 Re8 10. Bb2 Ne7 11. Nbd2 Ng6 12. d4 c6 13. Re1 Be6 14. Qe2 h6 15. dxe5 dxe5 16. c4 a5 17. b5 Qc8 18. Nxe5 Nxe5 19. Bxe5 Ng4 20. Bb2 Nxf2 21. Kf1 Bg4 22. Bf3 Bh3+ 23. Bg2 Bxg2+ 24. Kxg2 Qh3+ 25. Kf3 Rad8 26. Ra3 Qg4+ 27. Kg2 Qh3+ 28. Kf3 f5 29. c5 fxe4+ 30. Kxf2 Bxc5+ 31. Re3 Qxh2+ 32. Kf1 Rf8+ 33. Nf3 Rxf3+ 34. Rxf3 Qg1# 0-1

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2023.02.12"]
[Round "7.5"]
[White "Colijn, Stefan"]
[Black "Schoppen, Casper"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2264"]
[BlackElo "2497"]
[PlyCount "128"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "KGSRL"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 4. e3 Bg7 5. Nf3 0-0 6. Be2 c5 7. 0-0 cxd4 8. exd4 Nc6 9. Ne5 Qb6 10. Nxc6 bxc6 11. Na4 Qa5 12. c3 Nd7 13. b4 Qd8 14. Qd2 a5 15. a3 Ba6 16. Bxa6 Rxa6 17. Nc5 Ra7 18. Nb3 a4 19. Na5 Qc8 20. c4 Nb6 21. c5 Nc4 22. Nxc4 dxc4 23. Rac1 Rd8 24. Rxc4 e5 25. Bg5 Rd5 26. Bh6 Bxh6 27. Qxh6 exd4 28. Qd2 Qd8 29. Qd3 Re7 30. Rcc1 Qe8 31. g3 h5 32. h4 Re4 33. b5 cxb5 34. c6 Re7 35. Rc2 Rc7 36. Rfc1 Qe6 37. Re2 Qd6 38. Rec2 Qf6 39. Kg2 Kg7 40. Qe4 Qd6 41. Rd2 Rxc6 42. Rxc6 Qxc6 43. Rxd4 Rc5 44. Qxc6 Rxc6 45. Rd5 Rb6 46. Kf3 Kf6 47. Ke3 Ke6 48. Rd8 Rd6 49. Rb8 Rd5 50. Rb7 f6 51. f3 Kf5 52. Rg7 Rd1 53. Rc7 Rb1 54. Rc5+ Ke6 55. Rc6+ Ke5 56. g4 Rb3+ 57. Kf2 hxg4 58. fxg4 Rxa3 59. h5 gxh5 60. gxh5 Kd5 61. Rxf6 Rh3 62. Rf5+ Kc4 63. Kg2 Re3 64. Rf4+ Kb3 0-1

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2023.01.29"]
[Round "6.5"]
[White "Michiels, Bart"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2571"]
[BlackElo "2264"]
[PlyCount "89"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Wachtebeke"]
[BlackTeam "Mechelen"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 c5 9. dxc5 bxc5 10. e4 d6 11. 0-0-0 Nc6 12. Bxf6 Qxf6 13. Qxf6 gxf6 14. Rxd6 Na5 15. Kc2 Rfc8 16. Kc3 Kf8 17. Ne2 Rd8 18. Rxd8+ Rxd8 19. Nc1 Rd1 20. Kc2 Rd4 21. b3 Ke7 22. Be2 Nc6 23. Nd3 Kd6 24. Kc3 a5 25. Rd1 Ba6 26. Nb2 e5 27. Rxd4+ Nxd4 28. Bd1 Bc8 29. Nd3 f5 30. b4 axb4+ 31. axb4 cxb4+ 32. Kxb4 Bb7 33. exf5 f6 34. Nc5 Bc6 35. Ne4+ Bxe4 36. fxe4 Nc6+ 37. Kb5 Na7+ 38. Kb6 Nc8+ 39. Kb7 Ne7 40. Kb6 Nc8+ 41. Kb7 Ne7 42. Bf3 h6 43. h4 Kd7 44. c5 Nc6 45. Be2 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.12.17"]
[Round "5.9"]
[White "Los, Sander"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2255"]
[BlackElo "2275"]
[PlyCount "83"]
[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 "Amstelveen Zukertort"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. c4 d4 3. b4 c5 4. e3 f6 5. exd4 cxd4 6. c5 Qd5 7. Qc2 Bf5 8. Bc4 Qxf3 9. Qa4+ Bd7 10. Qxd7+ Kxd7 11. gxf3 Nc6 12. Ba3 a5 13. b5 Nb4 14. Bxb4 axb4 15. Bd5 Kc7 16. Be6 g6 17. a4 bxa3 18. Nxa3 f5 19. 0-0 Nf6 20. Nc4 Bg7 21. Ne5 b6 22. Nc4 bxc5 23. Rfb1 Nd7 24. Rxa8 Rxa8 25. Bxd7 Kxd7 26. Nb6+ Kc7 27. Nxa8+ Kb7 28. Rc1 Kxa8 29. Rxc5 Kb7 30. Rc6 Bh6 31. d3 Bf4 32. h3 Bd6 33. Kf1 Bb4 34. Ke2 g5 35. Kd1 h5 36. Kc2 g4 37. fxg4 fxg4 38. hxg4 hxg4 39. Re6 Bd6 40. Kb3 Kc7 41. Kc4 Kb6 42. Rg6 1-0

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.12.04"]
[Round "5.6"]
[White "Baselmans, Sam"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2201"]
[BlackElo "2264"]
[PlyCount "202"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Brasschaat"]
[BlackTeam "Mechelen"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 d6 2. Nc3 g6 3. f4 Bg7 4. Nf3 c5 5. Bb5+ Bd7 6. Bc4 e6 7. 0-0 Ne7 8. d3 a6 9. a3 Nbc6 10. Ba2 Nd4 11. Nxd4 cxd4 12. Ne2 d5 13. Ng3 Qc7 14. Kh1 h5 15. Rf2 h4 16. Nf1 dxe4 17. dxe4 Bc6 18. Nd2 h3 19. g3 Nf5 20. Qf3 Nd6 21. Kg1 f5 22. Bxe6 fxe4 23. Qg4 e3 24. Re2 Qe7 25. Nb3 Bf3 26. Qxf3 Qxe6 27. Bxe3 0-0-0 28. Bxd4 Bxd4+ 29. Nxd4 Qc4 30. c3 Kb8 31. Rae1 Rd7 32. Qg4 Rhh7 33. Re5 Nf5 34. Nxf5 gxf5 35. Qxf5 Qc6 36. Qe4 Qb6+ 37. Qe3 Qc6 38. Re8+ Kc7 39. Qe5+ Rd6 40. Re7+ Kb8 41. Re8+ Kc7 42. Qe2 Rhd7 43. Re7 Kb8 44. Rxd7 Rxd7 45. Qf2 Rd3 46. Qe2 Re3 47. Kf2 Rxe2+ 48. Rxe2 Kc7 49. Rd2 Qe4 50. Re2 Qh1 51. Ke3 Qg1+ 52. Kd2 Kd6 53. Kc2 Qf1 54. Kd2 a5 55. Re1 Qb5 56. Kc1 a4 57. Kc2 Qc5 58. Kd2 Qb6 59. Kc1 Qf2 60. Rd1+ Kc5 61. Rd2 Qe1+ 62. Kc2 b5 63. Rd4 Qe2+ 64. Rd2 Qe4+ 65. Kc1 Kc6 66. Kd1 Kb6 67. Kc1 Kc5 68. Kd1 Qh1+ 69. Kc2 Qe1 70. Rd1 Qe4+ 71. Kc1 Qg6 72. Rd4 Qf5 73. Rd2 Kc4 74. Kd1 Kb3 75. Ke2 Qe4+ 76. Kf2 Ka2 77. Re2 Qd3 78. Re3 Qd5 79. Re2 Kb1 80. Ke3 Kc1 81. Kf2 Qg2+ 82. Ke3 Qg1+ 83. Ke4 Kd1 84. Kf3 Qh1+ 85. Ke3 Qd5 86. Rf2 Qc5+ 87. Kf3 Qc6+ 88. Ke3 Qe6+ 89. Kf3 Qd5+ 90. Ke3 Qc5+ 91. Kf3 Ke1 92. Re2+ Kf1 93. Rd2 Kg1 94. g4 Qc6+ 95. Ke3 Qe6+ 96. Kf3 Qe1 97. Re2 Qd1 98. Ke3 Qc1+ 99. Kf3 Qf1+ 100. Ke3 Qg2 101. g5 Kf1 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.26"]
[Round "4.3"]
[White "Grooten, Herman"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2258"]
[BlackElo "2275"]
[PlyCount "83"]
[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 "De Stukkenjagers"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Nc3 0-0 7. 0-0 dxc4 8. a4 a5 9. e4 Na6 10. Qe2 Nb4 11. Rd1 Nd3 12. Bg5 Ng4 13. Be3 Nxe3 14. fxe3 e5 15. d5 Qb6 16. Nd2 Qxb2 17. Nxc4 Qxc3 18. Qxd3 Qxd3 19. Rxd3 cxd5 20. Nb6 dxe4 21. Bxe4 Bf5 22. Bxf5 gxf5 23. Rf1 Rfd8 24. Rb3 Ra6 25. Rxf5 Rd6 26. Nc8 Rd7 27. Nb6 Rd6 28. Nc4 Rd1+ 29. Rf1 Rxf1+ 30. Kxf1 Rc6 31. Nxa5 Rc1+ 32. Kg2 Ra1 33. Rb4 b5 34. Rxb5 Rxa4 35. Nc6 f6 36. Kf3 h5 37. Ne7+ Kf7 38. Rb7 e4+ 39. Kg2 Bh6 40. Nf5+ Kg6 41. Nh4+ Kg5 42. Rb5+ 1-0

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.11.20"]
[Round "4.4"]
[White "Colijn, Stefan"]
[Black "Travadon, Loic"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2264"]
[BlackElo "2470"]
[PlyCount "57"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Wetteren"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 Bf5 5. f3 e6 6. g4 Bg6 7. h4 h6 8. Bd3 Bxd3 9. Qxd3 c5 10. Nge2 Nc6 11. 0-0-0 c4 12. Qd2 b5 13. g5 Nh5 14. e4 b4 15. Na4 c3 16. Qe3 cxb2+ 17. Kb1 Na5 18. Nxb2 Rc8 19. Be5 Nc6 20. Nf4 Nxe5 21. Nxh5 Rc3 22. Qe2 Nc4 23. Nxc4 dxc4 24. d5 e5 25. d6 Qb6 26. Qh2 Kd7 27. Qxe5 Qb5 28. Rd5 Qa4 29. Nf6+ 1-0

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.11.06"]
[Round "3.2"]
[White "Colijn, Stefan"]
[Black "Eugene, Floryan"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2264"]
[BlackElo "2397"]
[PlyCount "116"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Charleroi CREC"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. Qc2 b5 8. a4 b4 9. Bg5 Ba6 10. Nbd2 b3 11. Qc1 Nc6 12. Nxc4 Nb4 13. Bxf6 Bxf6 14. Qc3 Rb8 15. Qxb3 Nc6 16. Qc2 Nxd4 17. Nxd4 Qxd4 18. Rac1 Rb4 19. b3 Bxc4 20. bxc4 Rb2 21. e3 Rxc2 22. exd4 Rxc1 23. Rxc1 Bxd4 24. Rb1 Rd8 25. Rb7 Kf8 26. Kf1 Rc8 27. Ke2 Ke7 28. f4 Kd6 29. Rb3 Rd8 30. Bf1 h5 31. h3 g6 32. Kd3 Ke7 33. Ke2 Bc5 34. Rb5 Kd6 35. Rb3 Re8 36. Rd3+ Ke7 37. Rb3 a5 38. Kf3 Rd8 39. Be2 Rd2 40. Rd3 Ra2 41. g4 h4 42. f5 g5 43. f6+ Kxf6 44. Rd7 Rxa4 45. Rxc7 Ra3+ 46. Kg2 Rg3+ 47. Kh2 Bd6 48. Rc6 Bf4 49. Bf1 a4 50. Ra6 a3 51. Kh1 Rc3 52. c5 Be5 53. c6 Rc1 54. Kg1 Bd4+ 55. Kg2 Rc2+ 56. Kf3 a2 57. Bd3 Rf2+ 58. Ke4 Rf4# 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.05"]
[Round "3.7"]
[White "Colijn, Stefan"]
[Black "De Wit, Tex"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2275"]
[BlackElo "2275"]
[PlyCount "114"]
[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 "Apeldoorn Amevo"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. e3 Bb4 5. Qd3 c6 6. a3 Be7 7. Nf3 b6 8. Qd1 Ba6 9. Bxa6 Nxa6 10. Qe2 Nb8 11. Ne5 Nfd7 12. e4 Nxe5 13. Bxe5 Nd7 14. Bxg7 Rg8 15. Bh6 Rxg2 16. Bf4 Rg6 17. Bg3 Nf6 18. 0-0-0 Nxe4 19. Nxe4 dxe4 20. c4 b5 21. d5 cxd5 22. cxd5 exd5 23. Qxb5+ Kf8 24. Qxd5 Rc8+ 25. Kb1 Qb6 26. Qd4 Bxa3 27. Rd2 Qxd4 28. Rxd4 Rb6 29. Rd2 Rc4 30. Bh4 Be7 31. Bxe7+ Kxe7 32. Rhd1 Rcb4 33. Re2 f5 34. f3 Ke6 35. fxe4 Rxe4 36. Red2 Reb4 37. Re1+ Re4 38. Red1 Reb4 39. Re1+ Kf6 40. Kc1 a5 41. Ree2 h5 42. Rd5 R6b5 43. Rd8 h4 44. Rf8+ Kg7 45. Ra8 Rg4 46. Ra6 Rg6 47. Ra7+ Kh6 48. Ra8 Rg4 49. Rf2 a4 50. Rf8 Rc4+ 51. Kd1 Rd5+ 52. Rd2 Rxd2+ 53. Kxd2 Kg5 54. Ke3 Rb4 55. Rg8+ Kh5 56. Ra8 Kg4 57. Ra5 Rb3+ 0-1

[Event "Deizisau Autumn op 16th"]
[Site "Deizisau"]
[Date "2022.11.01"]
[Round "7"]
[White "Krassowizkij, Jaroslaw"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "C43"]
[WhiteElo "2439"]
[BlackElo "2267"]
[PlyCount "57"]
[EventDate "2022.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Nxc3 7. bxc3 Bd6 8. 0-0 0-0 9. Re1 c5 10. Qf3 c4 11. Bf5 Nb6 12. Qh3 Bxf5 13. Qxf5 Qc8 14. Qf3 f6 15. Ng4 Re8 16. Bf4 Bxf4 17. Qxf4 Qc6 18. h4 Rxe1+ 19. Rxe1 Re8 20. Rxe8+ Qxe8 21. h5 h6 22. Ne3 Na4 23. Nxd5 Qxh5 24. Ne3 Nxc3 25. Qb8+ Kh7 26. Qxb7 Qe2 27. g3 Nd1 28. Qe4+ Kh8 29. Qe8+ 1/2-1/2

[Event "Deizisau Autumn op 16th"]
[Site "Deizisau"]
[Date "2022.10.31"]
[Round "6"]
[White "Colijn, Stefan"]
[Black "Gheng, Josef"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2267"]
[BlackElo "2193"]
[PlyCount "53"]
[EventDate "2022.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 e6 5. Nf3 c5 6. Be2 b5 7. a3 Nc6 8. Ne5 Bb7 9. 0-0 Qb6 10. Nxc6 Bxc6 11. a4 b4 12. a5 Qb7 13. Na4 Nd7 14. c3 c4 15. b3 Bb5 16. bxc4 Bxc4 17. Bxc4 dxc4 18. cxb4 Qxb4 19. Qf3 Ra7 20. Rfb1 Qxa5 21. Nb6 Qf5 22. Nc8 e5 23. Nxa7 exf4 24. Qa8+ Ke7 25. e4 Qg4 26. f3 Qe6 27. Rxa6 1-0

[Event "Deizisau Autumn op 16th"]
[Site "Deizisau"]
[Date "2022.10.31"]
[Round "5"]
[White "Dubansky, Marcel"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2017"]
[BlackElo "2267"]
[PlyCount "166"]
[EventDate "2022.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 Nf6 6. 0-0 Be7 7. c3 0-0 8. Bc2 Bg4 9. d4 c5 10. d5 Nbd7 11. h3 Bh5 12. c4 Re8 13. Nc3 Bf8 14. Bf4 a6 15. g4 Bg6 16. Bxg6 hxg6 17. Qd3 Qb6 18. b3 Re7 19. Nd2 Rae8 20. Qg3 Ne5 21. Rae1 Qa5 22. Re3 Ned7 23. Rxe7 Bxe7 24. Nde4 Nxe4 25. Nxe4 Qxa2 26. Bxd6 Qc2 27. Nxc5 Bxd6 28. Qxd6 Nxc5 29. Qxc5 Qxb3 30. Kh2 Qd3 31. Ra1 Re2 32. Rf1 Re4 33. Qc7 Kh7 34. Kg2 f6 35. Rc1 b5 36. d6 bxc4 37. d7 Rd4 38. d8Q Rxd8 39. Qxc4 Qxc4 40. Rxc4 a5 41. Ra4 Ra8 42. f4 Kg8 43. Kf3 Kf7 44. Ke4 Ke6 45. Kd4 Kd6 46. Kc4 Kc6 47. Kb3 Kd5 48. Kc3 Ra7 49. Kd3 Kc5 50. Kc3 Kb5 51. Re4 a4 52. Rb4+ Kc5 53. Rc4+ Kb5 54. Rb4+ Kc6 55. Rc4+ Kd5 56. Rd4+ Ke6 57. Re4+ Kf7 58. Kb2 a3+ 59. Ka2 f5 60. Rb4 Kf6 61. Rb6+ Kf7 62. Rb4 fxg4 63. hxg4 g5 64. fxg5 Kg6 65. Rb5 Ra4 66. Rc5 Rxg4 67. Kxa3 Rxg5 68. Rc8 Rb5 69. Ka4 Rb1 70. Rc5 Kh6 71. Ka3 g5 72. Rc6+ Kh5 73. Rc8 Kh4 74. Ka2 Rb7 75. Rg8 g4 76. Rh8+ Kg3 77. Rg8 Kh3 78. Rh8+ Kg2 79. Rg8 g3 80. Rg6 Kh2 81. Rh6+ Kg1 82. Rg6 g2 83. Rg8 Rh7 0-1

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.10.16"]
[Round "2.1"]
[White "Colijn, Stefan"]
[Black "Galyas, Miklos"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2264"]
[BlackElo "2452"]
[PlyCount "88"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Eupen Rochade"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 4. e3 cxd4 5. exd4 a6 6. Nf3 Nc6 7. Ne5 e6 8. a3 Bd7 9. Qd3 Rc8 10. Be2 Qb6 11. Nxc6 Rxc6 12. b4 Rc8 13. b5 Bd6 14. Bd2 0-0 15. bxa6 bxa6 16. Rb1 Qc7 17. Qxa6 Bf4 18. Bxf4 Qxf4 19. Qd3 e5 20. g3 Qxd4 21. Qxd4 exd4 22. Nb5 Rxc2 23. Nxd4 Ra2 24. 0-0 Rxa3 25. Ra1 Rfa8 26. Rxa3 Rxa3 27. f3 g6 28. Kf2 Ra2 29. Ke3 Ra3+ 30. Kf2 h5 31. h4 Nh7 32. Rb1 Nf8 33. Rb7 Kg7 34. Bb5 Ra2+ 35. Ke3 Bxb5 36. Rxb5 Rg2 37. Kf4 Ne6+ 38. Nxe6+ fxe6 39. g4 Kf6 40. g5+ Ke7 41. Ke5 Re2+ 42. Kd4 Kd6 43. Rb6+ Kc7 44. Ra6 Kb7 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.7"]
[White "Ondersteijn, Niels"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2382"]
[BlackElo "2275"]
[PlyCount "63"]
[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 "Paul Keres"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nf3 e4 5. Nd4 d5 6. d3 exd3 7. cxd5 cxd5 8. Qxd3 Nc6 9. Nc3 Bc5 10. Nxc6 bxc6 11. 0-0 0-0 12. Na4 Bd6 13. Be3 Re8 14. Rac1 Bd7 15. Nc5 Bxc5 16. Bxc5 Ne4 17. b4 a5 18. b5 Nxc5 19. Rxc5 Qe7 20. Rfc1 cxb5 21. Bxd5 Rad8 22. Rc7 Qf6 23. Bf3 Bg4 24. Qxb5 Bxf3 25. exf3 Qxf3 26. Qxa5 Re2 27. Qa7 Red2 28. Re1 h5 29. Qe3 Qxe3 30. Rxe3 Rxa2 31. Rf3 Rf8 32. Rfc3 1/2-1/2

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.09.25"]
[Round "1.2"]
[White "Colijn, Stefan"]
[Black "Defromont, Benjamin"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2264"]
[BlackElo "2359"]
[PlyCount "48"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Mechelen"]
[BlackTeam "Oostende"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d5 6. Nc3 0-0 7. e3 Qe7 8. cxd5 exd5 9. Bd3 Nbd7 10. 0-0 c6 11. Qc2 Re8 12. Rae1 Ne4 13. Nd2 Ndf6 14. f3 Nxd2 15. Qxd2 c5 16. e4 dxe4 17. Nxe4 Rd8 18. Qc2 cxd4 19. Ng5 Qd6 20. Bxh7+ Kf8 21. Qc4 Qd5 22. Qb4+ Qd6 23. Qc4 Qd5 24. Qb4+ Qd6 1/2-1/2

[Event "Leca da Palmeira op"]
[Site "Leca da Palmeira"]
[Date "2022.08.04"]
[Round "8"]
[White "Sismeiro, Miguel"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2162"]
[BlackElo "2336"]
[PlyCount "65"]
[EventDate "2022.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qb6 6. Nb3 d6 7. 0-0 Nf6 8. c4 Be7 9. Nc3 Qc7 10. Be3 Nbd7 11. f4 b6 12. Rc1 Bb7 13. Nd2 Rc8 14. a3 Qb8 15. b4 0-0 16. Qf3 g6 17. Qh3 Rfe8 18. Nf3 d5 19. cxd5 exd5 20. e5 Ne4 21. Nxd5 Bxd5 22. Qxd7 Nc3 23. Qh3 a5 24. Bd4 Be6 25. Qg3 Bf5 26. Rxc3 Rxc3 27. Bxf5 Rxa3 28. e6 Bxb4 29. Qh4 fxe6 30. Qf6 e5 31. Be6+ Rxe6 32. Qxe6+ Kf8 33. Nxe5 1-0

[Event "Leca da Palmeira op"]
[Site "Leca da Palmeira"]
[Date "2022.07.31"]
[Round "2"]
[White "Goncalves, Samuel Jesus P"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "1957"]
[BlackElo "2336"]
[PlyCount "113"]
[EventDate "2022.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 a5 11. Nc3 Bxf3 12. Bxf3 c6 13. Rfd1 Na6 14. e4 Nb4 15. Rac1 Rc8 16. h4 Rc7 17. Rd2 Ne8 18. Bf4 Bd6 19. e5 Be7 20. Qe2 Rd7 21. Rcd1 Nc7 22. Be4 Ncd5 23. Qh5 g6 24. Qh6 Re8 25. Kg2 Bf8 26. Qg5 Qxg5 27. hxg5 Nxf4+ 28. gxf4 Nd5 29. Bxd5 exd5 30. Rh1 Bb4 31. Rd3 Bxc3 32. Rxc3 Kg7 33. f5 gxf5 34. Kg3 Re6 35. Kf4 h6 36. Kxf5 hxg5 37. Rch3 Kf8 38. Rh8+ Ke7 39. Ra8 Rd8 40. Rxa5 Kd7 41. Rh7 Rf8 42. Kxg5 Kc7 43. Rc5 b6 44. Rc3 c5 45. f4 Rc6 46. f5 Kd7 47. Re3 Rg8+ 48. Kf4 cxd4 49. e6+ Kd8 50. exf7 Rf8 51. Rd3 Ke7 52. Rxd4 Rxf7 53. Rxf7+ Kxf7 54. Ke5 Rc2 55. b4 Ke7 56. Kxd5 Rf2 57. Kc6 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.02.05"]
[Round "6.7"]
[White "Beijer, Bart"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1717"]
[BlackElo "2323"]
[PlyCount "74"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. a4 g6 5. h3 Bg7 6. Be3 0-0 7. Be2 Qa5 8. Qd2 b5 9. b4 Qxb4 10. Rb1 Qa5 11. axb5 Bd7 12. Bf3 e5 13. dxe5 dxe5 14. Bc5 Bh6 15. Qd3 Re8 16. Bb4 Qc7 17. Bd6 Qc8 18. Nge2 cxb5 19. Nxb5 Na6 20. Nec3 Nc5 21. Bxc5 Qxc5 22. Qd6 Qxd6 23. Nxd6 Re6 24. Ndb5 Rc6 25. Nd5 Nxd5 26. exd5 Rxc2 27. Nc7 Rxc7 28. d6 Rcc8 29. Bxa8 Rxa8 30. Ke2 a5 31. Rhd1 a4 32. Rb7 Rd8 33. Rd3 Bf8 34. Rb6 f5 35. Kd2 Kf7 36. f3 Ke6 37. Kc3 Rc8+ 0-1

[Event "Titled Tuesday intern op 21st Dec"]
[Site "Chess.com INT"]
[Date "2021.12.21"]
[Round "3"]
[White "Colijn, Stefan"]
[Black "Eynullayev, Atilla Elshan"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2324"]
[BlackElo "2324"]
[PlyCount "40"]
[EventDate "2021.12.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 4. e3 a6 5. g4 c5 6. g5 Nfd7 7. h4 Nc6 8. Qd2 b5 9. a3 Qb6 10. Nf3 Bb7 11. h5 Rc8 12. Bh3 Na5 13. g6 hxg6 14. hxg6 f6 15. Ke2 Nc4 16. Qc1 b4 17. Na4 Qb5 18. b3 Nce5+ 19. c4 bxc3+ 20. Ke1 Nxf3+ 0-1

[Event "Titled Tuesday intern op 21st Dec"]
[Site "Chess.com INT"]
[Date "2021.12.21"]
[Round "2"]
[White "Grunberg, Mihai Lucian"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2401"]
[BlackElo "2324"]
[PlyCount "55"]
[EventDate "2021.12.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. 0-0 Be7 10. c3 0-0 11. d4 Nbd7 12. Re1 Re8 13. Bf4 Qb6 14. Bb3 c5 15. Rad1 cxd4 16. Rxd4 Nc5 17. Rb4 Qa6 18. Bc4 Qa5 19. Rb5 Qa4 20. Rxc5 Bxc5 21. Bb3 Qc6 22. Qe2 Rad8 23. Be5 Nd5 24. Qg4 Bf8 25. Nh5 g6 26. Bxd5 Rxd5 27. Nf6+ Kg7 28. Nxd5+ 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.11.27"]
[Round "4.7"]
[White "Lenaerts, Lennert"]
[Black "Colijn, Stefan"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2354"]
[BlackElo "2324"]
[PlyCount "85"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 0-0 5. Bg2 d6 6. Nf3 Nc6 7. Bd2 Bxc3 8. Bxc3 Ne4 9. Qc2 Nxc3 10. Qxc3 Qf6 11. 0-0 e5 12. d5 Ne7 13. Nd2 Qh6 14. f4 exf4 15. gxf4 Ng6 16. Qg3 Bd7 17. Rae1 Rae8 18. e3 Nh4 19. Nf3 Nxg2 20. Kxg2 Bf5 21. Nd2 Bd3 22. Rf2 f5 23. Qg5 Qxg5+ 24. fxg5 h6 25. gxh6 gxh6 26. Rf4 Rf6 27. Kf2 Rg6 28. b3 Re7 29. e4 fxe4 30. Nxe4 Bxe4 31. Rexe4 Reg7 32. Kf3 Rg2 33. Rg4 R2xg4 34. Rxg4 Kf7 35. Rf4+ Ke7 36. Re4+ Kf7 37. Rf4+ Ke7 38. Rh4 Rg6 39. b4 c6 40. Ke4 cxd5+ 41. Kxd5 Rg5+ 42. Kd4 h5 43. a4 1/2-1/2

[Event "Titled Tuesday intern op 09th Nov"]
[Site "Chess.com INT"]
[Date "2021.11.09"]
[Round "1"]
[White "Colijn, Stefan"]
[Black "Aditya, Mittal"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2323"]
[BlackElo "2459"]
[PlyCount "28"]
[EventDate "2021.11.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 h6 7. Bh4 Be7 8. e3 Ne4 9. Bxe7 Qxe7 10. Nc3 Nd7 11. Bd3 Ndf6 12. Nd2 Nxf2 13. Kxf2 Ng4+ 14. Kf1 Nxe3+ 0-1

[Event "Titled Tuesday intern op 28th Sept"]
[Site "Chess.com INT"]
[Date "2021.09.28"]
[Round "3"]
[White "Atabayev, Maksat"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2475"]
[BlackElo "2323"]
[PlyCount "93"]
[EventDate "2021.09.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 g6 4. Bg5 Bg7 5. Nbd2 0-0 6. e3 b6 7. Be2 Bb7 8. 0-0 d6 9. a4 a6 10. Bd3 Nbd7 11. Qe2 Ra7 12. h3 Qa8 13. e4 e5 14. dxe5 dxe5 15. Rfe1 Nh5 16. Bc4 h6 17. Be3 Nf4 18. Bxf4 exf4 19. e5 Re8 20. e6 fxe6 21. Bxe6+ Kh7 22. Qd3 Nf8 23. Bc4 Rd8 24. Qc2 Bc6 25. Ne4 b5 26. axb5 axb5 27. Rxa7 Qxa7 28. Neg5+ hxg5 29. Nxg5+ Kh6 30. Nf7+ Kh7 31. Nxd8 Ba8 32. Bf1 Bf6 33. Ne6 Nxe6 34. Rxe6 Qf7 35. Rb6 b4 36. cxb4 cxb4 37. Rxb4 f3 38. g3 Be5 39. Qb3 Qa7 40. Ra4 Qc5 41. Rxa8 Bxg3 42. Qxf3 Be5 43. Qf7+ Kh6 44. Ra4 Qc6 45. Rh4+ Kg5 46. Qe7+ Bf6 47. Qe4 1-0

[Event "Titled Tuesday intern op 28th Sept"]
[Site "Chess.com INT"]
[Date "2021.09.28"]
[Round "1"]
[White "Colijn, Stefan"]
[Black "Cunha, Lucas Aguiar"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2323"]
[BlackElo "2290"]
[PlyCount "73"]
[EventDate "2021.09.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 d5 4. Bf4 Nc6 5. Nbd2 Qb6 6. Qb3 c4 7. Qc2 Bf5 8. Qxf5 Qxb2 9. Rb1 Qxc3 10. g3 e6 11. Qh3 Qc2 12. Bg2 c3 13. 0-0 cxd2 14. Bxd2 b6 15. Rfc1 Qa4 16. e3 Be7 17. Ng5 0-0 18. Nxe6 Rfc8 19. Nf4 Qxa2 20. Be1 Bd6 21. Ra1 Qb3 22. Rcb1 Qc2 23. Nxd5 Nxd5 24. Bxd5 Qg6 25. Rc1 Bf8 26. Qd7 Ne7 27. Bxa8 Rxa8 28. Rxa7 Rxa7 29. Qxa7 h5 30. Bb4 Qe6 31. Bxe7 Bxe7 32. Qa8+ Kh7 33. Qc6 Qg4 34. Qxb6 h4 35. Qb1+ g6 36. Qb7 Kg7 37. Qxe7 1-0

[Event "Titled Tuesday intern op 28th Sept"]
[Site "Chess.com INT"]
[Date "2021.09.28"]
[Round "2"]
[White "Erdogdu, Mert"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2396"]
[BlackElo "2323"]
[PlyCount "67"]
[EventDate "2021.09.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Bg4 8. Nc3 f5 9. Re1 Bd6 10. h3 Bh5 11. Nxd5 0-0 12. c3 Kh8 13. Bf4 g5 14. Bxd6 Qxd6 15. Ne3 g4 16. hxg4 fxg4 17. Bxe4 gxf3 18. Bxf3 Rxf3 19. gxf3 Rg8+ 20. Ng4 Bf7 21. Kh1 Bd5 22. Rg1 Qf4 23. Nh2 Re8 24. Rg4 Qf5 25. Rg3 Re6 26. Qd2 Ne7 27. Rag1 Ng6 28. Qh6 Rf6 29. Rh3 Bg8 30. Qg5 Qe6 31. Ng4 Rf5 32. Qh6 Nf4 33. Ne5 Nxh3 34. Qg7# 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "3"]
[White "Amburgy, Ryan"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2030"]
[BlackElo "2323"]
[PlyCount "72"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. d4 Nbd7 6. Qc2 Bd6 7. Bd2 0-0 8. 0-0-0 dxc4 9. Bxc4 b5 10. Bd3 a6 11. Ng5 h6 12. h4 Qc7 13. Nge4 Be7 14. f3 c5 15. Nxf6+ Bxf6 16. d5 Nb6 17. d6 Qxd6 18. Ne4 Qe7 19. Nxf6+ Qxf6 20. Bc3 Qe7 21. Bh7+ Kh8 22. g4 Nd5 23. Be4 Bb7 24. g5 h5 25. Bxd5 exd5 26. Qf2 b4 27. Bd2 a5 28. Rhe1 a4 29. e4 a3 30. b3 Qe5 31. Bc3 Qxc3+ 32. Kb1 dxe4 33. fxe4 Rad8 34. Qe2 Rxd1+ 35. Rxd1 Bxe4+ 36. Rd3 Bxd3+ 0-1

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "5"]
[White "Assaubayeva, Bibissara"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2389"]
[BlackElo "2323"]
[PlyCount "55"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 Bg7 8. Qa4+ Bd7 9. Qb3 b5 10. Bxd6 Qb6 11. Be5 0-0 12. e3 c4 13. Qd1 b4 14. Ne2 Bb5 15. Ned4 Ba6 16. Rc1 Rc8 17. Be2 Nxd5 18. Bxg7 Kxg7 19. Nf5+ gxf5 20. Qxd5 Nc6 21. Qxf5 Ne7 22. Qg4+ Qg6 23. Qd4+ Kg8 24. 0-0 Nf5 25. Qf4 Rc5 26. Bxc4 Qc6 27. Bxf7+ Kxf7 28. Ne5+ 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "2"]
[White "Colijn, Stefan"]
[Black "Gusarov, Grigory"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2323"]
[BlackElo "2354"]
[PlyCount "62"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Nf3 c6 4. e3 Bg4 5. h3 Bh5 6. Bd3 e6 7. Nbd2 Nbd7 8. 0-0 Bg6 9. Qc2 Be7 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Nf6 13. Bxg6 hxg6 14. Bf4 Nd5 15. Bd2 0-0 16. Rfe1 Bf6 17. Ne5 Bxe5 18. Rxe5 Qd7 19. Rae1 Rad8 20. h4 c5 21. dxc5 Ne7 22. Bc1 Nf5 23. g3 Qc6 24. b4 Rd7 25. Qe4 Qa4 26. g4 Nxh4 27. Qh1 g5 28. Bxg5 f6 29. c6 bxc6 30. Ra5 Qd1 31. Qe4 Qxe1+ 0-1

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Kovalev, Egor"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2323"]
[BlackElo "2217"]
[PlyCount "74"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. 0-0 c5 7. c3 cxd4 8. exd4 Nc6 9. Nbd2 Nd5 10. Bg3 e5 11. c4 Nde7 12. d5 Nb8 13. Ne1 Nf5 14. Nd3 h5 15. h3 Nxg3 16. fxg3 Bf5 17. g4 hxg4 18. hxg4 Bxd3 19. Bxd3 Qb6+ 20. Kh2 Qxb2 21. Rb1 Qd4 22. Ne4 f5 23. Nxd6 e4 24. Bxe4 Qe5+ 25. Kh1 Qxd6 26. gxf5 gxf5 27. Bxf5 Nd7 28. Be6+ Kh7 29. Qh5+ Bh6 30. Rf7+ Rxf7 31. Qxf7+ Kh8 32. Qxd7 Qf4 33. Qf7 Qh4+ 34. Kg1 Rf8 35. Qxf8+ Bxf8 36. Rxb7 Bc5+ 37. Kf1 Qf2# 0-1

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Maiorov, Nikita"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2323"]
[BlackElo "2456"]
[PlyCount "105"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 b6 5. Be2 Be7 6. 0-0 cxd4 7. exd4 0-0 8. a4 Ba6 9. Nbd2 Bxe2 10. Qxe2 a6 11. c3 d6 12. Rfe1 Nbd7 13. Ng5 d5 14. Ndf3 h6 15. Nxe6 fxe6 16. Qxe6+ Rf7 17. Ne5 Nxe5 18. dxe5 Ne4 19. Rad1 Nc5 20. Qg4 h5 21. Qg3 h4 22. Qg4 Qf8 23. Be3 Rf5 24. Rxd5 Ne6 25. Rd7 Bc5 26. Qc4 Qe8 27. Rd3 h3 28. Bxc5 Qc6 29. Qg4 Rf4 30. Qxh3 Nxc5 31. Rd6 Qc8 32. Qg3 Qf5 33. b4 Rg4 34. Qh3 Ne4 35. f3 Qxe5 36. Qg3 Nxg3 37. Rxe5 Rc4 38. hxg3 Rxc3 39. Rg5 Ra7 40. Rxb6 Rd7 41. b5 Rc1+ 42. Kh2 axb5 43. a5 Rc2 44. a6 Rdd2 45. Rb7 Rxg2+ 46. Kh3 Rh2+ 47. Kg4 Rc4+ 48. f4 Kf8 49. a7 Ra4 50. Rb8+ Kf7 51. a8Q Rxa8 52. Rxa8 Kf6 53. Ra6+ 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "10"]
[White "Colijn, Stefan"]
[Black "Samarth, J Rao"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2323"]
[BlackElo "1664"]
[PlyCount "63"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Bd6 6. Qc2 Nbd7 7. Bd3 Qe7 8. 0-0 e5 9. cxd5 cxd5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. h3 0-0 13. b3 Bd7 14. Bb2 Rac8 15. Qd2 Rfd8 16. Rac1 Be6 17. Rfd1 Bb8 18. Bf1 h5 19. Nb5 a6 20. Nd4 Ne4 21. Qe2 Qd6 22. g3 h4 23. Nxe6 fxe6 24. Qg4 Rc7 25. Rxc7 Qxc7 26. Qxe6+ Kh8 27. Rxd5 Rxd5 28. Qe8+ Kh7 29. Qxe4+ Rf5 30. Qxf5+ g6 31. Qf6 hxg3 32. Qh8# 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "1"]
[White "Colijn, Stefan"]
[Black "Shyam, Nikil P"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2323"]
[BlackElo "2453"]
[PlyCount "123"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 c6 3. Nf3 g6 4. 0-0 Bg7 5. d3 e5 6. e4 dxe4 7. dxe4 Qxd1 8. Rxd1 Be6 9. Bd2 Ne7 10. Bc3 f6 11. Nbd2 Nd7 12. Nb3 b6 13. Rd6 Bf7 14. Rad1 0-0-0 15. Bh3 Be8 16. Be6 Kc7 17. a4 Nc8 18. R6d3 Bf8 19. a5 Nd6 20. Nfd2 Be7 21. f3 Nb7 22. a6 Nbc5 23. Nxc5 Nxc5 24. Rxd8 Bxd8 25. Bh3 Nxa6 26. Ra1 Kb7 27. Nc4 Be7 28. Rd1 Nb8 29. Nd6+ Kc7 30. Nxe8+ Rxe8 31. f4 Bd6 32. f5 g5 33. Bg4 Rd8 34. Kg2 Nd7 35. b4 Nb8 36. Ra1 Kb7 37. Rd1 Be7 38. Rh1 Na6 39. h4 h6 40. hxg5 hxg5 41. Rh7 Rd7 42. Be2 Nb8 43. Bc4 Bd6 44. Rh6 Be7 45. Be6 Rc7 46. Kf3 Na6 47. Kg4 Nb8 48. Kh5 b5 49. Kg6 c5 50. bxc5 Rxc5 51. Bb4 Rc7 52. Bxe7 Rxe7 53. Kxf6 Nc6 54. Bd5 Rc7 55. Kxg5 a5 56. f6 a4 57. f7 Rxf7 58. Bxf7 Nd4 59. Bd5+ Kc7 60. c3 Ne2 61. Rc6+ Kd7 62. g4 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "11"]
[White "Kadam, Om Manish"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2114"]
[BlackElo "2323"]
[PlyCount "41"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. c4 Bb4+ 8. Bd2 Nxd2 9. Nbxd2 0-0 10. 0-0 Bg4 11. h3 Bh5 12. Be2 Re8 13. Rc1 dxc4 14. Nxc4 Rxe2 15. Qxe2 Nxd4 16. Qe4 Nxf3+ 17. gxf3 Qf6 18. Ne5 Bd6 19. f4 Re8 20. Rfe1 Bb4 21. Qxb4 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "8"]
[White "Machidon, Cristi"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2264"]
[BlackElo "2323"]
[PlyCount "69"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. c3 Bb7 5. e4 Nxe4 6. Bxb5 g6 7. 0-0 Bg7 8. Re1 Nd6 9. Bf1 0-0 10. Bg5 Re8 11. Na3 Na6 12. Qa4 Nc7 13. c4 Nf5 14. Bd3 h6 15. Bxf5 hxg5 16. Bxd7 Rf8 17. Re2 g4 18. Bxg4 Rb8 19. Rae1 Bf6 20. Ne5 Bc8 21. Nc6 Qe8 22. Bxc8 Qxc8 23. Nxb8 Qxb8 24. b3 Ne8 25. Qc6 Nd6 26. Qxc5 Nf5 27. Nc2 Bc3 28. Rd1 Qf4 29. Ne3 Nh4 30. Qxe7 Bf6 31. Qc5 Re8 32. d6 Re5 33. Rd5 Rxe3 34. Qxe3 Qf5 35. Rxf5 1-0

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "9"]
[White "Rottenwohrer Suarez, Juan"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2230"]
[BlackElo "2323"]
[PlyCount "66"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 g6 7. Bxf6 Qxf6 8. Nxd5 Qd8 9. Nc3 Qxd4 10. Nf3 Qb6 11. e4 Bg7 12. Be2 0-0 13. 0-0 Nd7 14. Na4 Qa5 15. Rfd1 Nb6 16. Nc5 Re8 17. a3 Bxb2 18. Nxb7 Bxb7 19. Qxb2 Rxe4 20. Bd3 Re7 21. h3 Rae8 22. Qf6 Nd5 23. Qh4 Nc3 24. Rf1 c5 25. Ng5 h5 26. Qf4 Be4 27. Bc4 Bd5 28. Bd3 c4 29. Bxc4 Bxc4 30. Qxc4 Ne2+ 31. Kh1 Qxg5 32. Rfe1 Nf4 33. Rxe7 Qxg2# 0-1

[Event "Titled Tuesday intern op 10th Aug"]
[Site "Chess.com INT"]
[Date "2021.08.10"]
[Round "6"]
[White "Yaran, Siar"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "E80"]
[WhiteElo "2272"]
[BlackElo "2323"]
[PlyCount "102"]
[EventDate "2021.08.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. f3 g6 4. c4 Bg7 5. Nc3 c5 6. dxc5 0-0 7. cxd6 exd6 8. Bd3 a6 9. Nge2 b5 10. cxb5 d5 11. e5 Nh5 12. f4 f6 13. exf6 Nxf6 14. 0-0 Ng4 15. Qe1 Ra7 16. h3 Qb6+ 17. Kh1 Ne3 18. Rf3 Nf5 19. Nxd5 Qd6 20. Nec3 Rd7 21. Bc4 Qc5 22. Nf6+ Kh8 23. Nxd7 Nxd7 24. Qf1 Bb7 25. Bb3 Nf6 26. Bd2 Nh4 27. Rg3 Nh5 28. Rg4 Nf5 29. Kh2 Qc7 30. bxa6 Ba8 31. Re1 Nh6 32. Rh4 Nf5 33. Rxh5 gxh5 34. Bd5 h4 35. Bxa8 Rxa8 36. Qd3 Ng3 37. Nd5 Qc8 38. Nb6 Qxa6 39. Qxa6 Rxa6 40. Re8+ Bf8 41. Rxf8+ Kg7 42. Rb8 Ne4 43. Bc3+ Kg6 44. Nd5 Rxa2 45. Ne7+ Kf7 46. Nf5 Kg6 47. Nxh4+ Kh5 48. Nf3 Ra1 49. Rb6 Nf2 50. Bg7 Rh1+ 51. Kg3 Ne4# 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.18"]
[Round "9"]
[White "Colijn, Stefan"]
[Black "Fournier, Loic"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "2286"]
[BlackElo "2109"]
[PlyCount "104"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. h3 0-0 9. Bd3 Na6 10. 0-0 Nc7 11. a4 b6 12. Bf4 a6 13. Re1 Rb8 14. Rb1 b5 15. axb5 axb5 16. b4 Nd7 17. Qd2 c4 18. Bc2 Qf6 19. Ne2 Ne5 20. Nfd4 c3 21. Qxc3 Nc4 22. Qg3 h6 23. h4 Ra8 24. Nc6 Bd7 25. Bg5 hxg5 26. hxg5 Qe5 27. Nxe5 Bxe5 28. f4 Bg7 29. Qd3 Ra3 30. Rb3 Rfa8 31. Nd4 Ra2 32. Re2 Ra1+ 33. Kh2 Rf1 34. Nf3 Rfa1 35. Rb1 R1a3 36. Bb3 R8a4 37. Bxc4 Rxd3 38. Bxd3 Na6 39. Bc2 Ra2 40. Bd1 Ra3 41. e5 Rd3 42. e6 Be8 43. Rc2 Kf8 44. Rc8 Ke7 45. Rbc1 Bb2 46. R1c2 Ba3 47. Be2 Rxd5 48. exf7 Bxf7 49. Ra8 Nxb4 50. Rc7+ Ke6 51. Rxa3 Rf5 52. Nd4+ Kd5 1-0

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.17"]
[Round "8"]
[White "Battesti, Marc Andria"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2060"]
[BlackElo "2286"]
[PlyCount "56"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. f3 Qb6 6. e4 dxe4 7. fxe4 e5 8. dxe5 Ng4 9. Nh3 Bb4 10. Be2 h5 11. Rf1 Nc6 12. Nf4 Be6 13. Nxe6 fxe6 14. Bg5 Qa5 15. Qd2 Ngxe5 16. a3 Nf7 17. Rd1 Bxc3 18. bxc3 0-0 19. Be3 Qe5 20. Bf3 Rad8 21. Qc2 Qxh2 22. Ke2 Rxd1 23. Qxd1 Qe5 24. Qb3 Nd6 25. Kd3 Nxe4 26. Bd4 Rd8 27. Bxe4 Nxd4 28. Qxb7 Nf5+ 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.16"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Mastrovasilis, Dimitrios"]
[Result "0-1"]
[ECO "D16"]
[WhiteElo "2286"]
[BlackElo "2609"]
[PlyCount "52"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 e6 6. e3 c5 7. Bxc4 Nc6 8. 0-0 Be7 9. Qe2 cxd4 10. Rd1 0-0 11. Nxd4 Nxd4 12. Rxd4 Qc7 13. b3 Bd7 14. Bb2 Rad8 15. Rad1 Bc6 16. Rxd8 Rxd8 17. Rxd8+ Qxd8 18. Bb5 Qd7 19. e4 Bxb5 20. axb5 Bb4 21. Na2 Bc5 22. g3 Nxe4 23. Qxe4 Qd2 24. Qf4 Qxb2 25. b4 e5 26. Qf3 Bd4 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.15"]
[Round "6"]
[White "Colijn, Stefan"]
[Black "Fedorchuk, Sergey A"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2286"]
[BlackElo "2598"]
[PlyCount "103"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 e5 6. 0-0 Be7 7. Nc3 d6 8. Nd5 0-0 9. c3 Re8 10. d3 h6 11. Nd2 Nxd5 12. exd5 Nb8 13. a4 Nd7 14. Nc4 Bf8 15. Qc2 b6 16. b4 cxb4 17. cxb4 Nf6 18. Qb3 Bb7 19. Ne3 g6 20. Bb2 h5 21. Nc2 Rc8 22. Rac1 Bh6 23. Ne3 Rxc1 24. Bxc1 Qa8 25. Bd2 Kg7 26. Rc1 Re7 27. Rc6 Bxc6 28. dxc6 Qd8 29. b5 Bxe3 30. Bxe3 d5 31. Bg5 d4 32. Qb4 Qc7 33. f4 Re8 34. fxe5 Qxe5 35. Bf4 Qe2 36. Qd2 Qxd2 37. Bxd2 Ng4 38. c7 Ne5 39. Bb7 Nxd3 40. c8Q Rxc8 41. Bxc8 Nb2 42. a5 Nc4 43. axb6 axb6 44. Bf4 Kf6 45. h4 Ke7 46. Bh3 Na3 47. Bf1 Ke6 48. Bc7 Kd5 49. Bxb6 Nc2 50. Kf2 Ne3 51. Be2 Nf5 52. Bc7 1-0

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.14"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Moroni, Luca Jr"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2286"]
[BlackElo "2565"]
[PlyCount "80"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. h4 h6 5. h5 g5 6. f4 gxf4 7. Bxf4 c6 8. Qd2 Qa5 9. Be2 Be6 10. a3 Nd7 11. Be3 Ngf6 12. Rh4 b5 13. Bf3 Nb6 14. b3 Rd8 15. Nge2 c5 16. Rd1 b4 17. axb4 cxb4 18. Nb1 d5 19. Nf4 Nxe4 20. Bxe4 dxe4 21. Nxe6 fxe6 22. Rxe4 Qxh5 23. Qe2 Qxe2+ 24. Kxe2 Rc8 25. Kd3 Kd7 26. c4 bxc3 27. Nxc3 Bf6 28. Ra1 Ra8 29. g4 Nd5 30. Na4 Rac8 31. Bd2 Rhd8 32. Rae1 Ke8 33. Rxe6 Bxd4 34. Ke2 Rc2 35. Rxh6 Bg7 36. Rh7 Rxd2+ 37. Kxd2 Nf6+ 38. Ke3 Nxh7 39. Kf4 Rd4+ 40. Kf5 Kf7 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.14"]
[Round "5"]
[White "Roux, Baptiste"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2174"]
[BlackElo "2286"]
[PlyCount "120"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[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. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c5 6. Ne2 Nc6 7. Be3 cxd4 8. Nxd4 Ne5 9. 0-0 a6 10. Nc3 Bd6 11. Qe2 Qc7 12. h3 Bd7 13. Rad1 Rc8 14. Rfe1 b5 15. Bg5 0-0 16. Bxf6 gxf6 17. Qd2 Be7 18. Qh6 Rfd8 19. Be4 f5 20. Bxf5 exf5 21. Nd5 Qd6 22. Nxe7+ Qxe7 23. f4 f6 24. fxe5 fxe5 25. Rd3 Kh8 26. Qxa6 Rg8 27. Qb7 Qg7 28. Rxe5 Qxe5 29. Qxd7 Qe1+ 30. Kh2 Qe4 31. Rg3 Rxg3 32. Kxg3 Rg8+ 33. Kf2 Qxg2+ 34. Ke3 Qxh3+ 35. Kd2 b4 36. Qd6 Qg2+ 37. Kc1 Qf1+ 38. Kd2 Qg2+ 39. Kc1 Qg5+ 40. Kd1 f4 41. Nf3 Rd8 42. Nxg5 Rxd6+ 43. Ke2 Ra6 44. a3 bxa3 45. bxa3 Rxa3 46. c4 Rc3 47. Nf7+ Kg7 48. Nd6 f3+ 49. Kf2 Kg6 50. Ne4 Rxc4 51. Kxf3 Ra4 52. Nf2 Kf5 53. Kg3 h5 54. Kh3 Kg5 55. Kh2 Ra3 56. Nh3+ Kg4 57. Nf2+ Kf3 58. Nh1 h4 59. Kh3 Ra1 60. Kh2 Rb1 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.13"]
[Round "2"]
[White "Colijn, Stefan"]
[Black "Berthaut, Alexandre"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2286"]
[BlackElo "1929"]
[PlyCount "69"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. Nf3 d6 6. 0-0 c6 7. d4 Qa5 8. h3 e5 9. d5 c5 10. a3 Qd8 11. Nd2 Ne8 12. Rb1 f5 13. e4 Nf6 14. b4 Na6 15. Kh2 Kh8 16. Nf3 h6 17. Nh4 Kh7 18. exf5 gxf5 19. Qc2 Nh5 20. Bf3 Nf4 21. Bg4 Qf6 22. Rb3 Kg8 23. Bxf5 Bxf5 24. Qxf5 Qxf5 25. Nxf5 Rxf5 26. gxf4 exf4 27. Ne4 Be5 28. Bb2 b6 29. Rg1+ Kh7 30. Nxd6 f3+ 31. Bxe5 Rxe5 32. Rxf3 Rg5 33. Rxg5 hxg5 34. b5 Rd8 35. Nf7 1-0

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.13"]
[Round "3"]
[White "Podvin, Antoine"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2085"]
[BlackElo "2286"]
[PlyCount "114"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. e3 Nbd7 5. Nf3 h6 6. Bh4 e6 7. Bd3 Bxd3 8. cxd3 Bd6 9. e4 Be7 10. e5 Ng8 11. Bg3 h5 12. Qd2 Nh6 13. Rc1 c6 14. Na4 Nf5 15. Bf4 Rc8 16. Nc5 Nxd4 17. Nxd4 Bxc5 18. Nb3 Be7 19. d4 b6 20. 0-0 c5 21. dxc5 bxc5 22. Qe2 Qb6 23. Rfd1 g6 24. Rc3 Rb8 25. Bc1 h4 26. Kh1 Rh5 27. f4 a5 28. Qc2 c4 29. Nd4 Nc5 30. b3 Ne4 31. Rf3 c3 32. Be3 Bc5 33. Qd3 Kf8 34. Rc1 Qb7 35. Ne2 Ba3 36. Rd1 Rc8 37. Qc2 a4 38. Bd4 axb3 39. axb3 Bb4 40. Nxc3 Bxc3 41. Bxc3 h3 42. Rc1 Kg7 43. Qb2 hxg2+ 44. Kxg2 g5 45. Bd4 g4 46. Rff1 Rch8 47. Rh1 Rh3 48. Qe2 Rf3 49. Rcf1 Rhh3 50. Qd1 Qa6 51. Rxf3 Rxf3 52. Re1 Qa2+ 53. Re2 Qxb3 54. Qe1 Rh3 55. Qf1 Rf3 56. Qe1 Rxf4 57. Qh4 Qf3+ 0-1

[Event "Bastia Summer op 1st"]
[Site "Bastia"]
[Date "2021.07.12"]
[Round "1"]
[White "Don Ignazi, Pierre Ange"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1596"]
[BlackElo "2286"]
[PlyCount "56"]
[EventDate "2021.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Nc3 Be7 7. Be2 0-0 8. 0-0 c5 9. d4 Nc6 10. dxc5 dxc5 11. Qxd8 Rxd8 12. Bf4 Bf5 13. Ne5 Nd4 14. Bc4 Ne6 15. Bg3 a6 16. a4 Bxc2 17. Nxf7 Kxf7 18. Rfe1 Bf5 19. Re5 Rd4 20. Bxe6+ Bxe6 21. Rae1 Rd6 22. f4 Bf8 23. f5 Bd7 24. Rxc5 Rc6 25. Rce5 Re8 26. Rxe8 Bxe8 27. Rd1 Bd7 28. Rf1 Rc5 0-1

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "8"]
[White "Bryakin, Mikhail"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2471"]
[BlackElo "2286"]
[PlyCount "129"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Na3 a6 7. Nc4 Qd8 8. dxc5 Qxd1+ 9. Kxd1 Bxc5 10. Be3 Bxe3 11. Nxe3 Nbd7 12. g3 b6 13. Bg2 Bb7 14. Ke2 Ke7 15. Rhd1 Rhd8 16. Nd4 Bxg2 17. Nxg2 Rac8 18. Ne3 g6 19. h4 h5 20. f3 Nc5 21. Nc4 b5 22. Ne5 Rd6 23. Rd2 Nfd7 24. Nxd7 Rxd7 25. Rad1 Rd5 26. Ke3 Kf6 27. f4 Rcd8 28. Nf3 Rxd2 29. Rxd2 Rxd2 30. Nxd2 Na4 31. Ne4+ Ke7 32. b3 Nb6 33. Kd4 Nd5 34. Kc5 f5 35. Ng5 Nxc3 36. Kb6 Nxa2 37. Kxa6 Nc3 38. Ka5 Kd6 39. Kb4 Ne2 40. Kxb5 Nxg3 41. b4 Ne2 42. Nh3 e5 43. fxe5+ Kxe5 44. Kc5 Nd4 45. Ng5 f4 46. Nf7+ Ke4 47. Nd6+ Kd3 48. Kd5 f3 49. Ne4 Ke3 50. Ng3 f2 51. Nf1+ Ke2 52. Ng3+ Kf3 53. Nf1 Ne2 54. Nd2+ Kg2 55. Kc4 f1Q 56. Nxf1 Kxf1 57. b5 Nf4 58. Kc5 Ne6+ 59. Kd6 Nd4 60. b6 Nb5+ 61. Kd5 g5 62. hxg5 h4 63. b7 h3 64. b8Q h2 65. Qxh2 1-0

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "2"]
[White "Colijn, Stefan"]
[Black "Fernandez Hernandez, Arturo Augusto"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2286"]
[BlackElo "2319"]
[PlyCount "80"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Qb6 5. Nbd2 d5 6. Qc1 Nc6 7. c3 Be7 8. h3 0-0 9. Bd3 Bd7 10. 0-0 Rac8 11. a3 Rfd8 12. Rb1 a5 13. Qd1 Be8 14. Qe2 Bd6 15. Bxd6 Rxd6 16. e4 dxe4 17. Nxe4 Nxe4 18. Qxe4 g6 19. Qh4 Kg7 20. Ng5 h6 21. Ne4 g5 22. Nxg5 Qd8 23. f4 cxd4 24. c4 f5 25. Rbe1 hxg5 26. fxg5 Bg6 27. g4 Qh8 28. Qg3 Rcd8 29. b4 axb4 30. axb4 Nxb4 31. gxf5 Nxd3 32. fxg6 Nxe1 33. Rf7+ Kg8 34. Qf4 Nd3 35. Qe4 Ne5 36. g7 Qh7 37. Qxe5 Kxf7 38. Qf6+ Kg8 39. g6 Qxg7 40. Qg5 d3 0-1

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "7"]
[White "Colijn, Stefan"]
[Black "Najdin, Danil"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2286"]
[BlackElo "2285"]
[PlyCount "130"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 c5 6. c3 d6 7. dxc5 dxc5 8. Qxd8 Rxd8 9. 0-0 Nc6 10. a4 Ne4 11. Na3 Be6 12. Nc4 Bxc4 13. Bxc4 e5 14. Bg5 Rd7 15. Rfd1 Rxd1+ 16. Rxd1 h6 17. Bh4 g5 18. Bg3 Nxg3 19. hxg3 e4 20. Nh2 Ne5 21. Bd5 Rd8 22. Kf1 Kf8 23. Ke2 f5 24. a5 Ke7 25. b3 b5 26. g4 Nd3 27. c4 bxc4 28. bxc4 Rb8 29. gxf5 Rb2+ 30. Rd2 Rxd2+ 31. Kxd2 Nxf2 32. Ke2 Nd3 33. Bxe4 Nb2 34. Bd5 h5 35. g4 h4 36. Nf3 Bc3 37. a6 Kf6 38. e4 Na4 39. Kd3 Be5 40. Ng1 Nb6 41. Nh3 Nc8 42. Kc2 Nd6 43. Kb3 Bd4 44. Ka4 Be5 45. Ka5 Bc3+ 46. Ka4 Be1 47. Kb3 Ba5 48. Kc2 Bb4 49. Kd3 Ba5 50. Bc6 Bb4 51. Ng1 Be1 52. Nf3 Bg3 53. Bd5 h3 54. e5+ Bxe5 55. Nxe5 Kxe5 56. Ke3 h2 57. Kf2 Nxc4 58. Kg2 Kxd5 59. Kxh2 Ke5 60. Kg3 Nd6 61. Kf3 Ne4 62. Ke3 Nf6 63. Kf3 c4 64. Ke3 Nxg4+ 65. Kd2 Kxf5 0-1

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Spata, German"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2286"]
[BlackElo "2290"]
[PlyCount "211"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. Bf4 b6 4. e3 Bb7 5. Bd3 Be7 6. Nbd2 0-0 7. 0-0 c5 8. c3 cxd4 9. exd4 d6 10. Re1 a6 11. a4 Nbd7 12. Rc1 Re8 13. h3 Qc7 14. b4 Rac8 15. c4 a5 16. bxa5 bxa5 17. c5 Qb8 18. Nc4 Qa8 19. Nxd6 Bxd6 20. Bxd6 Bxf3 21. Qxf3 Qxf3 22. gxf3 Nd5 23. Ba6 Rcd8 24. c6 N7b6 25. Bg3 Nxa4 26. c7 Nxc7 27. Bxc7 Rxd4 28. Re4 Rxe4 29. fxe4 Nb2 30. Bxa5 Ra8 31. Rc8+ Rxc8 32. Bxc8 Nc4 33. Bc3 Nd6 34. Ba6 Nxe4 35. Be1 h6 36. Bf1 Kf8 37. f3 Nf6 38. Kf2 Nh5 39. Ke3 f5 40. Bc3 Kf7 41. Bc4 Ng3 42. Kf2 Nh5 43. Be5 Ke7 44. Ke3 Kf7 45. Be2 g5 46. Bc4 Ke7 47. Kd4 Nf6 48. Bxf6+ Kxf6 49. Bb3 h5 50. Bd1 e5+ 51. Kd5 e4 52. fxe4 fxe4 53. Kxe4 g4 54. h4 g3 55. Kf3 g2 56. Kxg2 Kg6 57. Kg3 Kh6 58. Kf4 Kg6 59. Ke5 Kh6 60. Kf6 Kh7 61. Kf7 Kh8 62. Kf8 Kh7 63. Bc2+ Kh8 64. Bd1 Kh7 65. Ke7 Kh8 66. Kf6 Kh7 67. Kg5 Kh8 68. Kf4 Kh7 69. Kg3 Kh8 70. Bf3 Kh7 71. Bg2 Kh8 72. Bh3 Kh7 73. Bf5+ Kh8 74. Be6 Kh7 75. Bd7 Kh8 76. Bc8 Kh7 77. Bb7 Kh8 78. Ba6 Kh7 79. Bb5 Kh8 80. Ba4 Kh7 81. Bb3 Kh8 82. Ba2 Kh7 83. Bb1+ Kh8 84. Bc2 Kg7 85. Bb3 Kh8 86. Bc4 Kg7 87. Bd3 Kh8 88. Be2 Kg7 89. Bf1 Kh8 90. Bg2 Kg7 91. Bh3 Kh8 92. Bg2 Kg7 93. Bh1 Kh8 94. Bf3 Kg8 95. Be4 Kh8 96. Bd5 Kg7 97. Be6 Kh8 98. Kf4 Kg7 99. Bd5 Kh8 100. Bc4 Kg7 101. Bb3 Kh8 102. Ba2 Kg7 103. Bb1 Kh8 104. Bc2 Kg7 105. Bd1 Kh8 106. Be2 1/2-1/2

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "6"]
[White "Goncharov, Vladimir"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2077"]
[BlackElo "2286"]
[PlyCount "69"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[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 Be7 9. Bxf6 Bxf6 10. Nc4 0-0 11. Qxd6 Qxd6 12. Nxd6 Be6 13. Bd3 b5 14. a4 b4 15. Nd1 Rfd8 16. Nb7 Rxd3 17. cxd3 Be7 18. Rc1 Nd4 19. Rc7 Bf8 20. Ne3 Bb3 21. Nc5 Ba2 22. Nd7 Bd6 23. Rc1 f6 24. Nb6 Rb8 25. Nbc4 Bf8 26. Ra1 Bb3 27. 0-0 g6 28. Nd2 Be6 29. Ndc4 h5 30. Nd5 Kf7 31. Nc7 Bc8 32. f3 Ke7 33. Kh1 Bh6 34. Nd5+ Ke6 35. f4 1-0

[Event "Titled Tuesday intern op 25th May"]
[Site "Chess.com INT"]
[Date "2021.05.25"]
[Round "1"]
[White "Schmakel, Sam A"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2435"]
[BlackElo "2286"]
[PlyCount "91"]
[EventDate "2021.05.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 Bg7 8. Qa4+ Bd7 9. Qb3 b5 10. Bxd6 Qb6 11. Be5 0-0 12. e3 c4 13. Qd1 b4 14. Nb1 Bb5 15. a4 Ba6 16. Nbd2 c3 17. bxc3 Nxd5 18. Bxg7 Kxg7 19. Bxa6 Qxa6 20. c4 Nc3 21. Qb3 Nc6 22. 0-0 Rad8 23. Nb1 Rd3 24. Nxc3 Rxc3 25. Qb2 Qxc4 26. Nd2 Qd3 27. Nb1 Rd8 28. Nxc3 bxc3 29. Qb5 Qe4 30. Qc5 c2 31. a5 Ne5 32. f3 Qf5 33. Qc3 Rc8 34. Qd4 Kg8 35. Rac1 Nd3 36. e4 Qb5 37. h4 Nf4 38. Kh2 Qe2 39. Qf2 Qc4 40. Qg3 Nd3 41. h5 Nxc1 42. Rxc1 Qd3 43. h6 Qd2 44. Qh4 Qxc1 45. f4 Qd2 46. Qf6 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "9"]
[White "Colijn, Stefan"]
[Black "Matveeva, Olga"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2286"]
[BlackElo "2171"]
[PlyCount "69"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Bg5 Bb4+ 5. Nbd2 h6 6. Bxf6 Qxf6 7. e4 Bb7 8. Bd3 d6 9. 0-0 Bxd2 10. Qxd2 0-0 11. Rfe1 e5 12. Qc3 Nd7 13. d5 a5 14. b3 Nc5 15. Bc2 Bc8 16. a3 Bg4 17. Nd2 Qg6 18. b4 axb4 19. axb4 Nd7 20. Nf1 f5 21. h3 Bh5 22. exf5 Qg5 23. Ng3 Nf6 24. c5 bxc5 25. bxc5 Nxd5 26. Bb3 Bf7 27. Bxd5 Bxd5 28. Rad1 c6 29. cxd6 Rxf5 30. d7 Rff8 31. Rxe5 Qf4 32. Qe3 Qc4 33. Re8 Bf7 34. Rxa8 Rxa8 35. d8Q+ 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Pischal, Yulia"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2286"]
[BlackElo "1963"]
[PlyCount "56"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. h4 Bg7 4. h5 Nf6 5. h6 Bf8 6. Nc3 c6 7. d5 d6 8. Nf3 e5 9. dxe6 Bxe6 10. e4 Be7 11. Nd4 Bc8 12. exf5 Qb6 13. fxg6 hxg6 14. Bd3 0-0 15. Bxg6 Qxb2 16. Bd2 Qb6 17. Rh4 Qc5 18. Qe2 Bd8 19. Ne6 Bxe6 20. Qxe6+ Kh8 21. 0-0-0 Nbd7 22. Kb1 Ba5 23. Qe7 Rg8 24. Bd3 Rae8 25. Qf7 Bxc3 26. Bxc3 Qxc3 27. Rf4 Re1 28. Rxf6 Rxd1# 0-1

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "8"]
[White "Colijn, Stefan"]
[Black "Reprintsev, Alexander"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "2286"]
[BlackElo "2353"]
[PlyCount "37"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 e5 4. cxd5 Qxd5 5. Nc3 Bb4 6. e3 exd4 7. a3 Bxc3+ 8. bxc3 d3 9. Bxd3 Bg4 10. Qe2 Ne5 11. Bb5+ c6 12. c4 Qe4 13. Nd2 Qxg2 14. Qf1 Nd3+ 15. Qxd3 Qxh1+ 16. Nf1 cxb5 17. Bb2 Nf6 18. Bxf6 gxf6 19. Kd2 0-1

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "5"]
[White "Colijn, Stefan"]
[Black "Schrik, Rachid"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2286"]
[BlackElo "2198"]
[PlyCount "75"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Bg5 h6 5. Bxf6 Qxf6 6. Nc3 Bb7 7. e4 g6 8. Bd3 Bg7 9. 0-0 0-0 10. Qe2 d6 11. Rac1 a6 12. b4 Nd7 13. Rfd1 Qe7 14. d5 exd5 15. Nxd5 Qd8 16. Bc2 Re8 17. Bb3 a5 18. a3 axb4 19. axb4 Ra3 20. Qc2 c5 21. Ba4 Qc8 22. Bxd7 Qxd7 23. Nxb6 Qc7 24. Nd5 Bxd5 25. cxd5 Rc3 26. Qa4 Rb8 27. Rxc3 Bxc3 28. bxc5 Qxc5 29. Rc1 Qb6 30. h3 Be5 31. Qc6 Qb2 32. Nxe5 dxe5 33. Qc3 Qe2 34. Qxe5 Ra8 35. Rc7 Qe1+ 36. Kh2 Qxf2 37. d6 Rd8 38. d7 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "11"]
[White "Colijn, Stefan"]
[Black "Vifleemskaia, Svetlana"]
[Result "0-1"]
[ECO "D24"]
[WhiteElo "2286"]
[BlackElo "1926"]
[PlyCount "80"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. Nc3 a6 5. a4 e6 6. e4 c5 7. d5 exd5 8. exd5 Bg4 9. Bxc4 Bd6 10. h3 Bh5 11. g4 Bg6 12. 0-0 0-0 13. Nh4 Ne4 14. Nxg6 Nxc3 15. bxc3 hxg6 16. Rb1 b6 17. Qf3 Nd7 18. Bf4 Ne5 19. Bxe5 Bxe5 20. d6 Qxd6 21. Rfd1 Qc7 22. Qe4 Kh7 23. Rd3 Rae8 24. Qf3 a5 25. Kg2 Bf6 26. Rbd1 Re7 27. Bb5 Qe5 28. Re3 Qc7 29. Rxe7 Qxe7 30. Rd7 Qe5 31. c4 Kg8 32. Bc6 g5 33. Bd5 g6 34. Qd3 Kg7 35. Qf3 Qf4 36. Qxf4 gxf4 37. Rb7 Bc3 38. Rxb6 Bb4 39. Rb7 g5 40. Kf3 Kf6 0-1

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "10"]
[White "Jovic, Stanoje"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2206"]
[BlackElo "2286"]
[PlyCount "55"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nf3 e4 5. Ng5 d5 6. cxd5 Qxd5 7. d3 Bb4+ 8. Nc3 Bf5 9. 0-0 Bxc3 10. bxc3 0-0-0 11. Qa4 Rhe8 12. Be3 h6 13. dxe4 Nxe4 14. Nxe4 Bxe4 15. Rfd1 Qf5 16. Rxd8+ Kxd8 17. Bxa7 Bxg2 18. Kxg2 Rxe2 19. Be3 Qd5+ 20. Kg1 Ne5 21. Rd1 Nd3 22. c4 Qe4 23. Qa7 Ke7 24. a4 Ne5 25. Qc5+ Kf6 26. Qxc7 Nf3+ 27. Kf1 Ra2 28. Rd6+ 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "7"]
[White "Nastore, Pavel Alexandru"]
[Black "Colijn, Stefan"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2234"]
[BlackElo "2286"]
[PlyCount "40"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bd3 Nd7 8. Be3 Nf6 9. Qd2 0-0 10. 0-0-0 c5 11. h3 b5 12. Bxb5 Be6 13. a3 Rb8 14. Bd3 c4 15. Be2 Qa5 16. Nd4 Rxb2 17. Kxb2 Rb8+ 18. Ka2 Ne4 19. Qc1 Nxc3+ 20. Ka1 Rb1+ 0-1

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "1"]
[White "Rustemov, Alexander"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2525"]
[BlackElo "2286"]
[PlyCount "91"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb5 d5 6. cxd5 a6 7. N5c3 Bc5 8. h3 0-0 9. g4 e4 10. Bg2 e3 11. Bxe3 Bxe3 12. fxe3 Re8 13. Qd4 Nbd7 14. Nd2 Ne5 15. 0-0 Ng6 16. Nf3 Bd7 17. Rad1 Qe7 18. Rd3 Rad8 19. d6 Qf8 20. Nd5 Nxd5 21. Qxd5 Bc6 22. Qd4 Re4 23. Qc5 Rde8 24. Nd2 R4e5 25. Qd4 Bxg2 26. Kxg2 R5e6 27. Nc4 Re4 28. Qd5 h5 29. Kg3 h4+ 30. Kg2 b5 31. d7 bxc4 32. dxe8Q Qxe8 33. Rc3 Rxe3 34. Rxe3 Qxe3 35. Qxf7+ Kh7 36. Qf3 Qe5 37. Qc3 Qxe2+ 38. Rf2 Nf4+ 39. Kg1 Qd1+ 40. Kh2 Ne2 41. Rxe2 Qxe2+ 42. Kg1 Qd1+ 43. Kf2 Qb1 44. a3 Qe4 45. Qe3 Qc2+ 46. Qe2 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "3"]
[White "Salimova, Nurgyul"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2397"]
[BlackElo "2286"]
[PlyCount "63"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. b3 Bg4 5. Bb2 Nbd7 6. Be2 e6 7. h3 Bxf3 8. Bxf3 Bd6 9. 0-0 0-0 10. d4 Qe7 11. Nc3 dxc4 12. bxc4 e5 13. Qc2 Rfe8 14. Rab1 Rad8 15. Ba1 Nf8 16. Qa4 Bb8 17. Ne2 Ng6 18. Ng3 e4 19. Be2 Nh4 20. Qb4 Qxb4 21. Rxb4 b6 22. a4 Bc7 23. a5 c5 24. dxc5 bxc5 25. Rb7 Bxa5 26. Bxf6 gxf6 27. Bh5 Ng6 28. Nf5 Kf8 29. Rxa7 Bc3 30. Rb1 Re5 31. g4 Ne7 32. Rbb7 1-0

[Event "Titled Tuesday intern op 16th Mar"]
[Site "Chess.com INT"]
[Date "2021.03.16"]
[Round "6"]
[White "Samunenkov, Igor"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2209"]
[BlackElo "2286"]
[PlyCount "43"]
[EventDate "2021.03.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 c5 3. d5 e6 4. Nc3 exd5 5. Nxd5 Nxd5 6. Qxd5 d6 7. Bg2 Nc6 8. c3 Be6 9. Qd1 Be7 10. Nh3 Qd7 11. Nf4 0-0 12. 0-0 Rad8 13. e4 Bf6 14. Qc2 b5 15. Rd1 Bg4 16. f3 Be6 17. Be3 Ne5 18. Bxc5 Qc6 19. Bf2 d5 20. exd5 Bxd5 21. Nxd5 Rxd5 22. f4 1-0

[Event "Titled Tuesday intern op 26th Jan"]
[Site "Chess.com INT"]
[Date "2021.01.26"]
[Round "4"]
[White "Colijn, Stefan"]
[Black "Christensen, Thomas1111"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2286"]
[BlackElo "2154"]
[PlyCount "78"]
[EventDate "2021.01.26"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nc6 2. Nf3 d6 3. Nc3 g6 4. e4 Bg7 5. h3 e5 6. Bg5 f6 7. Be3 exd4 8. Nxd4 Nxd4 9. Bxd4 Be6 10. Be2 Ne7 11. 0-0 0-0 12. f4 Nc6 13. Be3 f5 14. Bf3 Bxc3 15. bxc3 fxe4 16. Bxe4 d5 17. Bf3 Qf6 18. Bxd5 Rad8 19. c4 Rfe8 20. Qf3 Nb4 21. Rad1 Bxd5 22. cxd5 Nxc2 23. Bxa7 b6 24. d6 Ne3 25. dxc7 Rxd1 26. Rxd1 Nxd1 27. Qd5+ Qf7 28. Qxd1 Qxc7 29. Qb3+ Qf7 30. Bxb6 Qxb3 31. axb3 Rb8 32. Bc7 Rxb3 33. Be5 Kf7 34. Kf2 h5 35. g3 Ke6 36. Kg2 Kf5 37. Kf2 Ke4 38. g4 h4 39. Kg2 Ra3 0-1

[Event "Titled Tuesday intern op 26th Jan"]
[Site "Chess.com INT"]
[Date "2021.01.26"]
[Round "3"]
[White "Colijn, Stefan"]
[Black "Palchuk, Andrii"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2286"]
[BlackElo "2177"]
[PlyCount "82"]
[EventDate "2021.01.26"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. cxd5 exd5 5. Nc3 Bd6 6. Bg5 f6 7. Bh4 Ne7 8. Bg3 Bf5 9. e3 Bg6 10. Bd3 0-0 11. 0-0 Bxg3 12. hxg3 Nd7 13. b4 f5 14. b5 Nf6 15. Ne5 Ne4 16. Rc1 Rf6 17. Ne2 Be8 18. Bxe4 fxe4 19. Qb3 Kh8 20. f4 cxb5 21. g4 a6 22. g5 Rf8 23. g4 Qd6 24. Kg2 Kg8 25. Ng3 Bc6 26. Nxe4 Qe6 27. Ng3 Nc8 28. Rh1 Nd6 29. Qd3 g6 30. Rh6 Nc4 31. Rch1 Nxe5 32. dxe5 d4+ 33. Kg1 Rf7 34. R1h2 Qxg4 35. Kf2 dxe3+ 36. Qxe3 Rxf4+ 37. Ke1 Rf3 38. Qd2 Qxg3+ 39. Rf2 Qxf2+ 40. Qxf2 Rxf2 41. Kxf2 Re8 0-1

[Event "Titled Tuesday intern op 26th Jan"]
[Site "Chess.com INT"]
[Date "2021.01.26"]
[Round "2"]
[White "Golubka, Petr"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2471"]
[BlackElo "2286"]
[PlyCount "67"]
[EventDate "2021.01.26"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. g3 Nf6 4. Bg2 d5 5. e3 h5 6. h3 a5 7. a3 Bc5 8. Ne2 Bf5 9. d3 Qd7 10. Nd2 d4 11. e4 Be6 12. f4 g6 13. Nf3 exf4 14. gxf4 0-0-0 15. Qd2 h4 16. b4 Bb6 17. b5 Na7 18. a4 c5 19. c3 c4 20. Nexd4 cxd3 21. Qxd3 Rhe8 22. 0-0-0 Bb3 23. Ne5 Qc7 24. c4 Bxd1 25. Rxd1 Bc5 26. Qc3 Nh5 27. Qf3 Qb6 28. Qg4+ Kc7 29. Nc2 Be3+ 30. Kb1 Rxd1+ 31. Qxd1 Nxf4 32. Qd7+ Kb8 33. Qxe8+ Nc8 34. Nd7+ 1-0

