[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.25"]
[Round "6"]
[White "Canchala Jimenez, Juan Manuel"]
[Black "Rojas Velasco, John Sebastian"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1658"]
[PlyCount "64"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 c5 5. exd5 Qxd5 6. Ngf3 cxd4 7. 0-0 Be7 8. Re1 Nc6 9. Nc4 b5 10. Nce5 Bb7 11. c4 dxc3 12. Nxf7 c2 13. Bxc2 Qxd1 14. Bxd1 Kxf7 15. Ng5+ Kg8 16. Nxe6 Bb4 17. Bb3 Bxe1 18. Bf4 Bb4 19. a3 Be7 20. Nc5+ Kf8 21. Ne6+ Kf7 22. Nc7+ Kg6 23. Bc2+ Kh5 24. Ne6 Rhg8 25. h4 h6 26. f3 g5 27. g3 Nd8 28. hxg5 Nxe6 29. Kg2 Bxf3+ 30. Kxf3 Nd4+ 31. Kg2 Nxc2 32. Rh1+ Kg6 0-1

[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.25"]
[Round "5"]
[White "Rojas Velasco, John Sebastian"]
[Black "Castro Ruiz, Julian"]
[Result "0-1"]
[ECO "D51"]
[BlackElo "1453"]
[PlyCount "54"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bg5 e6 6. e4 dxe4 7. Nxe4 Be7 8. Nc3 Qc7 9. Bd3 0-0 10. 0-0 b6 11. Rc1 c5 12. d5 exd5 13. cxd5 a6 14. Re1 Bd6 15. Ne4 Nxe4 16. Rxe4 Bb7 17. Rh4 g6 18. Qd2 f6 19. Bh6 Rf7 20. Re1 Ne5 21. Nxe5 Bxe5 22. Bc4 Qd6 23. f4 Bd4+ 24. Kh1 Bxd5 25. Bxa6 Re7 26. Rxe7 Qxe7 27. Bd3 Re8 0-1

[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.24"]
[Round "3"]
[White "Chipantiza Manyoma, Gustavo Adolfo"]
[Black "Rojas Velasco, John Sebastian"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1651"]
[PlyCount "47"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 Qb6 4. Na3 Qxb2 5. Nb5 Na6 6. a3 cxd4 7. Be5 Nb4 8. axb4 Qxb4+ 9. c3 dxc3 10. Bxc3 Qc5 11. Bd4 Qc6 12. Rc1 Qe4 13. Nc7+ Kd8 14. Nxa8 e5 15. Bxa7 Bb4+ 16. Ke2 b6 17. Bxb6+ Ke7 18. Nc7 d6 19. Qc2 Qb7 20. Qc6 Qb8 21. Qb5 Ba3 22. Rc3 Bd7 23. Qa5 Bc5 24. Rxc5 1-0

[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.24"]
[Round "4"]
[White "Rojas Velasco, John Sebastian"]
[Black "Perez Martinez, Jose Ricardo"]
[Result "1-0"]
[ECO "D94"]
[PlyCount "47"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 0-0 6. Bd3 Re8 7. 0-0 Nc6 8. cxd5 Nxd5 9. Bb5 a6 10. Bxc6 bxc6 11. Ne4 h6 12. h3 g5 13. Qa4 g4 14. hxg4 Bxg4 15. Ne5 Be2 16. Nxc6 Qd7 17. Nc5 Qg4 18. f3 Qh4 19. Nd7 Bxf1 20. Kxf1 e5 21. Qb3 Nb6 22. Ndxe5 Qh1+ 23. Kf2 Bf6 24. Qxf7+ 1-0

[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.23"]
[Round "2"]
[White "Rojas Velasco, John Sebastian"]
[Black "Ducuara Alape, Ronaldo"]
[Result "0-1"]
[ECO "E92"]
[BlackElo "1601"]
[PlyCount "58"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Nf3 Nc6 7. Be3 e5 8. d5 Ne7 9. Be2 Nd7 10. g4 f6 11. Qd2 g5 12. h4 h6 13. hxg5 fxg5 14. 0-0-0 Ng6 15. c5 Nf4 16. c6 Nb6 17. a4 Nxe2+ 18. Qxe2 Bxg4 19. a5 Bxf3 20. Qd3 bxc6 21. axb6 axb6 22. dxc6 Bxh1 23. Rxh1 Qe8 24. Qb5 Ra5 25. Qc4+ Qf7 26. Qb4 Ra1+ 27. Nb1 Rfa8 28. Re1 R8a4 29. Qb5 Qc4+ 0-1

[Event "COL-ch Students"]
[Site "Santa Fe"]
[Date "2023.09.23"]
[Round "1"]
[White "Tobar Beltran, Carlos Andres"]
[Black "Rojas Velasco, John Sebastian"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1896"]
[PlyCount "45"]
[EventDate "2023.09.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Bg4 6. Nbd2 cxd4 7. exd4 Qb6 8. Qb3 Qxb3 9. axb3 Nh5 10. Be3 e6 11. b4 Bxf3 12. Nxf3 Bd6 13. b5 Ne7 14. Be2 Nf4 15. Bxf4 Bxf4 16. 0-0 Kd7 17. b3 Rhc8 18. c4 g5 19. g3 Bc7 20. Nxg5 f6 21. Nxh7 Ng8 22. cxd5 exd5 23. Bg4+ 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.08.01"]
[Round "6"]
[White "Melo Ramirez, Marlon Roman"]
[Black "Rojas Velasco, John Sebastian"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1894"]
[BlackElo "1600"]
[PlyCount "47"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 d6 4. Nf3 e6 5. Bc4 Nf6 6. d3 a6 7. a3 Be7 8. 0-0 0-0 9. Bb3 b5 10. Qe1 Qb6 11. Kh1 Rd8 12. f5 exf5 13. Bg5 fxe4 14. dxe4 c4 15. Bxf6 cxb3 16. Nd5 Qb7 17. Nxe7+ Nxe7 18. Qg3 g6 19. Qh4 h5 20. Bxe7 Re8 21. Bxd6 Rxe4 22. Qd8+ Kh7 23. Ng5+ Kh6 24. Bf8# 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.08.01"]
[Round "5"]
[White "Rojas Velasco, John Sebastian"]
[Black "Rey Diaz, Juan Felipe"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1600"]
[BlackElo "1548"]
[PlyCount "77"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. d5 Nbd7 8. 0-0 c6 9. Bg5 h6 10. Be3 Ng4 11. dxc6 Nxe3 12. fxe3 Nb6 13. cxb7 Bxb7 14. Nd5 Rc8 15. Rc1 Ba6 16. c5 Bxe2 17. Qxe2 Nxd5 18. exd5 e4 19. Nd4 dxc5 20. Nc6 Qd6 21. Qc2 Rxc6 22. dxc6 Qxc6 23. b4 c4 24. Qxc4 Qxc4 25. Rxc4 Re8 26. Rc7 f5 27. g4 f4 28. Rd1 fxe3 29. Kf1 Bf6 30. Ke2 Bg5 31. Rdd7 Rb8 32. Rg7+ Kf8 33. Rcf7+ Ke8 34. Rg8+ Kxf7 35. Rxb8 Ke7 36. Rc8 Kd7 37. Rc4 Bf4 38. a4 Bxh2 39. Kxe3 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.08.01"]
[Round "4"]
[White "Saray, Jaison"]
[Black "Rojas Velasco, John Sebastian"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1648"]
[BlackElo "1600"]
[PlyCount "36"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. Nf3 d6 4. h3 Nf6 5. d3 e5 6. Bg5 Be7 7. Be2 0-0 8. Nbd2 d5 9. 0-0 Be6 10. Nh2 dxe4 11. dxe4 Qb6 12. Qc2 Rfd8 13. Nc4 Qc7 14. f4 b5 15. Ne3 a6 16. f5 Bd7 17. Bxf6 Bxf6 18. Nd5 Qb8 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.07.31"]
[Round "2"]
[White "Moreno, Pablo Emilio"]
[Black "Rojas Velasco, John Sebastian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1766"]
[BlackElo "1600"]
[PlyCount "22"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. Nf3 c5 4. e3 Nc6 5. b3 e6 6. Bd3 Bd6 7. Nbd2 0-0 8. h4 Qc7 9. Bxd6 Qxd6 10. Qe2 e5 11. dxe5 Nxe5 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.07.31"]
[Round "3"]
[White "Rojas Velasco, John Sebastian"]
[Black "Delgado Abril, Clemente"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1600"]
[PlyCount "91"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bg5 0-0 6. e3 d6 7. Be2 c6 8. 0-0 b6 9. a4 a6 10. Qb3 e6 11. Bd3 Kh8 12. e4 Qc7 13. Rfe1 Bb7 14. exf5 exf5 15. Re6 c5 16. d5 Bc8 17. Re2 Nbd7 18. Rae1 Bb7 19. Re7 Rae8 20. Bxf6 Rxe7 21. Bxe7 Re8 22. Bg5 Ne5 23. Qd1 h6 24. Bd2 Qd7 25. Bf1 Bc8 26. h4 Rf8 27. Qc1 Kh7 28. Ne2 Nd3 29. Qb1 Nxe1 30. Nxe1 Qe7 31. Nf3 Qf6 32. Bc3 Qe7 33. Nf4 Be5 34. Qc1 Rg8 35. Nd3 Bxc3 36. bxc3 g5 37. hxg5 hxg5 38. Qe3 Qf6 39. Nh2 Kg6 40. f3 Rh8 41. Nf2 Qg7 42. Bd3 Qe5 43. Nhg4 Qg3 44. Qe7 Qf4 45. Qf6+ Kh7 46. Qf7# 1-0

[Event "Puerto Lopez op"]
[Site "Puerto Lopez"]
[Date "2021.07.31"]
[Round "1"]
[White "Rojas Velasco, John Sebastian"]
[Black "Hoyos, Jhon Richard"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "1600"]
[PlyCount "53"]
[EventDate "2021.07.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. Bg5 Be7 6. e4 0-0 7. Be2 d6 8. Qd2 Nbd7 9. h4 Nh5 10. g4 Ng7 11. h5 Nf6 12. hxg6 fxg6 13. 0-0-0 Nxg4 14. Bxe7 Qxe7 15. Rdf1 d5 16. Ng5 Nf6 17. e5 Ne4 18. Ncxe4 dxe4 19. Nxe4 Rf5 20. Bg4 b6 21. Bxf5 Nxf5 22. Nf6+ Kf7 23. Rxh7+ Ng7 24. Qf4 Qd8 25. Nd7+ Kg8 26. Rfh1 Nh5 27. Qf7# 1-0

