[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.10"]
[Round "8"]
[White "Kostov, Alex"]
[Black "Pedraza Aldana, Alexandra"]
[Result "0-1"]
[ECO "C61"]
[WhiteElo "1850"]
[BlackElo "1236"]
[PlyCount "74"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 c6 6. Bc4 Nf6 7. 0-0 Bc5 8. Nd2 b5 9. Bb3 d5 10. exd5 cxd5 11. Re1+ Be6 12. Nf3 h6 13. Bf4 Kf8 14. Be5 Bg4 15. h3 h5 16. Bxf6 Qxf6 17. Bxd5 Rd8 18. Qe2 Bd6 19. Qe4 Bf4 20. Nxd4 Bd7 21. c4 Re8 22. Qf3 Qxd4 23. g3 g5 24. gxf4 gxf4 25. Rxe8+ Bxe8 26. Re1 Rg8+ 27. Kh2 Bd7 28. Re4 Qg7 29. Re1 Qg5 30. Bc6 Be6 31. Bxb5 Rg6 32. d4 Qh4 33. Rf1 Bg4 34. Qa3+ Kg7 35. Rg1 f3 36. Rg3 Bxh3 37. Qd6 Bg2+ 0-1

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.10"]
[Round "9"]
[White "Sanabria Calderon, Santiago"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C98"]
[WhiteElo "1451"]
[BlackElo "1850"]
[PlyCount "69"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. d5 Nd8 14. Nf1 Ne8 15. Ng3 g6 16. Bh6 Ng7 17. Qd2 f6 18. a4 Rb8 19. Reb1 Nf7 20. Be3 Bd7 21. b4 c4 22. a5 Qc8 23. Nh2 f5 24. exf5 gxf5 25. f4 Bf6 26. Rf1 e4 27. Ne2 Qb7 28. Rf2 Rbe8 29. Kh1 Kh8 30. Rg1 Rg8 31. g4 Bd8 32. Qd4 Nh6 33. Rfg2 Ref8 34. g5 Nf7 35. g6 1-0

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.07"]
[Round "3"]
[White "Kostov, Alex"]
[Black "Sarmiento, Juan Diego"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1850"]
[BlackElo "1533"]
[PlyCount "110"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. Nf3 Bg4 6. Be2 e5 7. 0-0 Nf6 8. cxd4 exd4 9. Nxd4 Bxe2 10. Qxe2+ Be7 11. Nb5 Qc6 12. Bf4 Nd5 13. Nd6+ Kf8 14. Nf5 Qe6 15. Qg4 Qg6 16. Qxg6 hxg6 17. Bxb8 gxf5 18. Be5 f6 19. Bd4 Bd6 20. h3 Kf7 21. Nc3 Nf4 22. Rfd1 Bb4 23. Kf1 Ne6 24. Ne2 Rhd8 25. a3 Nxd4 26. Nxd4 Bd6 27. Nxf5 Be5 28. Rxd8 Rxd8 29. Rb1 Rd2 30. b4 b6 31. Rb3 b5 32. Ke1 Ra2 33. Rd3 g6 34. Ne3 Ke6 35. Nd5 a6 36. Kf1 Bb2 37. Nc7+ Ke5 38. Rd5+ Ke4 39. Rd6 Be5 40. Re6 Kd3 41. f4 Bxc7 42. Rxa6 Bxf4 43. Rxf6 g5 44. h4 Rxa3 45. hxg5 Ra1+ 46. Kf2 Bxg5 47. Rf5 Be3+ 48. Kg3 Kc4 49. Re5 Bd2 50. Re4+ Kb3 51. Kf3 Bxb4 52. g4 Rg1 53. Kf4 Bd2+ 54. Kf5 b4 55. Rd4 Kc2 0-1

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.06"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Zuluaga Mancilla, Cesar"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1850"]
[BlackElo "2246"]
[PlyCount "62"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. d4 cxd4 6. Nxd4 a6 7. Bd3 d6 8. Qe2 dxe5 9. Qxe5 Nd7 10. Qg3 N7f6 11. 0-0 h5 12. Nd2 Bd6 13. Qf3 Ng4 14. g3 Ne5 15. Qe2 Nxd3 16. Qxd3 h4 17. Ne4 Be7 18. Qe2 Bd7 19. c4 Nf6 20. Ng5 hxg3 21. hxg3 Qb6 22. Be3 e5 23. Nf5 Qc6 24. Nh4 Ng4 25. b3 f6 26. Ngf3 Nxe3 27. Qxe3 Bc5 28. Qe2 0-0-0 29. Nd2 g5 30. Ng2 Bh3 31. Nf3 Bxg2 0-1

[Event "Medellin Flores op 30th"]
[Site "Medellin"]
[Date "2023.08.05"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Perez Tangarife, Simon"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "1877"]
[BlackElo "1524"]
[PlyCount "92"]
[EventDate "2023.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. b3 0-0 9. Rc1 e5 10. dxe5 dxe5 11. Be2 Nc6 12. Nf3 Nd4 13. Bxd4 exd4 14. Nb5 Qf6 15. Qxd4 Qe7 16. Qd6 Qe4 17. Qd3 Qg4 18. 0-0 Bf5 19. Qd6 Rad8 20. Qg3 Qe4 21. Rfe1 Bh6 22. Nc3 Qc6 23. Rcd1 Qf6 24. Nb5 Bc2 25. Rxd8 Rxd8 26. Qc7 a6 27. Na3 Be4 28. c5 Nd5 29. Qxb7 Qc3 30. Nb1 Bxb1 31. Rxb1 Bc1 32. Bc4 Qc2 33. g3 Qxb1 34. Bxd5 Ba3+ 35. Kg2 Qf5 36. Bc4 Bxc5 37. Qxa6 Qc2 38. Qf6 Qxf2+ 39. Kh3 Rd7 40. Qc6 Re7 41. Qf6 Qxa2 42. Ne5 Qa7 43. Ng4 Qd7 44. Kh4 Re4 45. h3 Be7 46. Bxf7+ Kf8 0-1

[Event "Medellin Flores op 30th"]
[Site "Medellin"]
[Date "2023.08.04"]
[Round "3"]
[White "Castillo Miranda, Mario Anel"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1415"]
[BlackElo "1877"]
[PlyCount "56"]
[EventDate "2023.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 d3 6. Qxd3 d6 7. Bg5 Nf6 8. 0-0 0-0 9. b4 Bb6 10. a4 a6 11. Nbd2 Re8 12. h3 h6 13. Bh4 Qe7 14. Rfe1 Be6 15. e5 dxe5 16. Nxe5 Nxe5 17. Rxe5 Bxc4 18. Nxc4 Qd7 19. Qxd7 Nxd7 20. Rd5 Re4 21. Rxd7 Rxc4 22. Bg3 Rxc3 23. a5 Ba7 24. Kh2 Rc8 25. Re1 b6 26. Ree7 bxa5 27. Rxf7 Bd4 28. bxa5 c5 0-1

[Event "Medellin Flores op 30th"]
[Site "Medellin"]
[Date "2023.08.04"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Garces Suaza, Carlos Daniel"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1877"]
[BlackElo "1519"]
[PlyCount "53"]
[EventDate "2023.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Nf5 Ne6 10. Re1 Bg5 11. Nd2 g6 12. Ng3 0-0 13. Nf3 Bxc1 14. Rxc1 b5 15. Bb3 Na5 16. Ne4 Nxb3 17. axb3 Bb7 18. Nf6+ Kg7 19. Qxd7 Qxd7 20. Nxd7 Rfd8 21. Rcd1 Bc6 22. Nf6 Bxf3 23. gxf3 Nd4 24. Kg2 Nxc2 25. Rxd8 Nxe1+ 26. Kf1 Rxd8 27. Kxe1 0-1

[Event "Medellin Flores op 30th"]
[Site "Medellin"]
[Date "2023.08.03"]
[Round "1"]
[White "Estevez Hernandez, Jose Daniel"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1320"]
[BlackElo "1877"]
[PlyCount "22"]
[EventDate "2023.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 Bh5 7. g4 Bg6 8. d3 Bd6 9. Kg2 h6 10. Rh1 Qd7 11. Nh4 Bh7 0-1

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.23"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Melgarejo Suarez, Aritna Valentina"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1989"]
[BlackElo "1563"]
[PlyCount "112"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. Bc4 Nb6 6. Bb3 d6 7. exd6 Bxd6 8. d4 N8d7 9. 0-0 0-0 10. Nbd2 Nf6 11. Re1 cxd4 12. Nxd4 Bd7 13. N2f3 h6 14. Qe2 Qc7 15. Nb5 Bxb5 16. Qxb5 Nbd7 17. h3 e5 18. Be3 Rae8 19. Rad1 a6 20. Qe2 e4 21. Nd4 Nc5 22. Bc2 Nd5 23. Nb5 axb5 24. Rxd5 Re5 25. Rxe5 Bxe5 26. Qxb5 b6 27. Qc4 Re8 28. Rd1 Bh2+ 29. Kf1 Bf4 30. Qe2 Qe5 31. Qd2 g5 32. Qd5 Bxe3 33. Qxe5 Rxe5 34. fxe3 f5 35. Rd6 Kg7 36. Rxb6 f4 37. Ke2 Ne6 38. a4 h5 39. b4 g4 40. hxg4 hxg4 41. Bb3 f3+ 42. Kf2 g3+ 43. Kxg3 Rg5+ 44. Kf2 Rxg2+ 45. Kf1 Ng5 46. Be6 Re2 47. Bf5 Kf7 48. Rg6 Nh3 49. Rg3 Rf2+ 50. Ke1 Re2+ 51. Kd1 Nf2+ 52. Kc1 Nd3+ 53. Kb1 f2 54. Bh3 Re1+ 55. Kc2 Rh1 56. Bg2 Ne1+ 0-1

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.23"]
[Round "7"]
[White "Tipiani Martinez, Paula Sofia"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1403"]
[BlackElo "1989"]
[PlyCount "83"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. Nc3 Nf6 6. h3 0-0 7. Be3 a6 8. d5 Nb8 9. g4 Nbd7 10. Nh4 Nxe4 11. Nxe4 Bxh4 12. g5 f5 13. Qh5 f4 14. Bd2 Nb6 15. Bd3 Bxf2+ 16. Kxf2 g6 17. Qh6 Nxd5 18. Bc4 Be6 19. h4 Qe7 20. h5 Qg7 21. Qxg7+ Kxg7 22. hxg6 hxg6 23. Rh6 Rh8 24. Rah1 Rxh6 25. gxh6+ Kf7 26. Ng5+ Kf6 27. Nxe6 Kxe6 28. Kf3 b5 29. Bxd5+ Kxd5 30. Kg4 Ke6 31. Kg5 Kf7 32. Ba5 c6 33. Bc7 Ke6 34. Kxg6 f3 35. Bb6 d5 36. Bf2 d4 37. h7 c5 38. h8Q Rxh8 39. Rxh8 e4 40. Re8+ Kd5 41. Kf5 e3 42. Bxe3 1-0

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.22"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Agudelo Silva, Juan Andres"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1989"]
[BlackElo "1112"]
[PlyCount "35"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. Re1 0-0 7. Bf1 Nc6 8. d4 cxd4 9. cxd4 Bg4 10. Nc3 Bxf3 11. gxf3 Qb6 12. Ne2 Nd7 13. Be3 Qc7 14. Rc1 Qd8 15. f4 Nf6 16. f3 e5 17. fxe5 dxe5 18. d5 1-0

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.22"]
[Round "5"]
[White "Largo Chaparro, Sofia Alejandra"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1395"]
[BlackElo "1989"]
[PlyCount "60"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 e6 4. e3 Bb7 5. Nbd2 h6 6. Bh4 d6 7. Bd3 Nbd7 8. 0-0 Be7 9. c3 0-0 10. e4 e5 11. Re1 Re8 12. Qb3 exd4 13. cxd4 c5 14. Bc4 Rf8 15. e5 Nh7 16. Bxe7 Qxe7 17. Bxf7+ Qxf7 18. e6 Qf6 19. exd7+ Qf7 20. Qxf7+ Rxf7 21. Re8+ Rf8 22. Rae1 Nf6 23. Rxa8 Bxa8 24. Re7 Rd8 25. dxc5 bxc5 26. Nc4 Kf8 27. Re3 Rxd7 28. Nh4 Bd5 29. b3 Bf7 30. Rd3 d5 0-1

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.21"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Bustos Acosta, Isauro"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1989"]
[BlackElo "1656"]
[PlyCount "73"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 d6 4. Nc3 c6 5. Qd2 Nf6 6. f3 Qa5 7. Bh6 Bxh6 8. Qxh6 b5 9. Bd3 b4 10. Nd1 b3+ 11. Nc3 bxc2 12. Bxc2 Qh5 13. Qe3 Be6 14. Nge2 0-0 15. 0-0 Nbd7 16. Nf4 Qh6 17. d5 Nh5 18. Nce2 cxd5 19. exd5 Bf5 20. Ba4 Nxf4 21. Nxf4 Ne5 22. Rfe1 Rab8 23. b3 Rfc8 24. Qd4 g5 25. Ne2 Rc7 26. Rac1 Rbc8 27. Rxc7 Rxc7 28. Ng3 Qf6 29. Qe3 Bg6 30. Rc1 Rxc1+ 31. Qxc1 Nd3 32. Qe3 Qa1+ 33. Nf1 Qxa2 34. Qxa7 Nf4 35. Qf2 Qb1 36. Bd7 Qxb3 37. Qe3 0-1

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.21"]
[Round "3"]
[White "Sanchez Riobo, Emily Dainne"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1388"]
[BlackElo "1989"]
[PlyCount "47"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 f5 2. c4 g6 3. Nf3 Bg7 4. g3 b6 5. Bg2 Bb7 6. 0-0 Nh6 7. Bf4 0-0 8. Nc3 Nf7 9. Nb5 d6 10. Qd2 Nd7 11. Rad1 a6 12. Nc3 Qc8 13. d5 Re8 14. e4 fxe4 15. Nxe4 e5 16. dxe6 Rxe6 17. Nfg5 Nxg5 18. Nxg5 Re7 19. Bd5+ Kf8 20. Nxh7+ Ke8 21. Bg5 Bc3 22. Qxc3 Rxh7 23. Rfe1+ Kf8 24. Qf3+ 1-0

[Event "Rivera Huila Hernandez Memorial-B"]
[Site "Rivera Huila"]
[Date "2023.07.20"]
[Round "1"]
[White "Parra Pino, Jesus David"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1365"]
[BlackElo "1989"]
[PlyCount "46"]
[EventDate "2023.07.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. c3 Nf6 5. d3 0-0 6. Nbd2 d5 7. exd5 Nxd5 8. 0-0 Bf5 9. Ne4 Re8 10. Neg5 Bg6 11. Re1 Bf6 12. b4 Nb6 13. Bb3 Qd7 14. a4 Rad8 15. a5 Nd5 16. b5 Nb8 17. Bb2 Nf4 18. Qb1 Qg4 19. g3 Bxg5 20. Nxe5 Qh3 21. gxf4 Bxf4 22. f3 Bxh2+ 23. Kf2 Bg3+ 0-1

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.07.03"]
[Round "9"]
[White "Gonzalez Zapata, Julian David"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C98"]
[WhiteElo "1767"]
[BlackElo "1989"]
[PlyCount "96"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. d5 Nd8 14. a4 Rb8 15. b3 Ne8 16. Qe2 g6 17. c4 Bd7 18. Nf1 Ng7 19. Ng3 f6 20. Nh2 Nf7 21. f4 exf4 22. Bxf4 Ne5 23. Rf1 bxa4 24. bxa4 Rb4 25. Bd2 Rb7 26. Rf2 Qc8 27. Bc3 Qe8 28. Nhf1 h5 29. Ne3 h4 30. Ngf1 Nh5 31. Ng4 g5 32. Bd2 Qg6 33. Bd1 Ng7 34. Bc2 Bd8 35. Nfe3 Nh5 36. Nf5 Bxf5 37. exf5 Qh7 38. Nxe5 fxe5 39. f6 Qh6 40. Bxg5 Qxg5 41. Rf5 Qg3 42. Qxh5 Bxf6 43. Raf1 Rg7 44. Qe2 Be7 45. R1f3 Bf6 46. Rf1 Rg6 47. R1f2 Rg7 48. Rf1 Rgf7 1-0

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.07.02"]
[Round "7"]
[White "Vallejo, Diego"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1757"]
[BlackElo "1989"]
[PlyCount "46"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. c3 Nxe4 8. cxd4 d5 9. Ne5 Bd7 10. Bb3 Nxe5 11. Bxd5 Bb5 12. Bxb7 Bxf1 13. Qxf1 Rb8 14. Bxe4 Qxd4 15. Nc3 0-0 16. Be3 Qc4 17. Qb1 h6 18. Bf4 Bd6 19. Nd5 Qd4 20. Be3 Qxb2 21. Qd1 Nc4 22. Bxh6 Qe5 23. f4 Qxe4 0-1

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.06.30"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Becker Newmark, Jeronimo"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "1989"]
[BlackElo "1550"]
[PlyCount "66"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[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. dxc5 Bxc5 6. Qe2 0-0 7. Ngf3 Nc6 8. c3 e5 9. exd5 Nxd5 10. Ne4 Be7 11. 0-0 f5 12. Ng3 e4 13. Bc4 exf3 14. Qxf3 Be6 15. Rd1 Ne5 16. Qe2 Bf6 17. Bf4 Nxf4 18. Bxe6+ Kh8 19. Qe3 Qb6 20. Bxf5 Qxe3 21. fxe3 Nfg6 22. Rd5 Rad8 23. Rad1 Rxd5 24. Rxd5 Rd8 25. e4 Nf4 26. Ra5 Rd1+ 27. Kf2 Nfd3+ 28. Ke2 Re1+ 29. Kd2 Nc4+ 30. Kxd3 Nxa5 31. b4 Nc6 32. Bc8 Rc1 33. Ne2 Nxb4+ 0-1

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.06.30"]
[Round "5"]
[White "Suaza Builes, Oscar A"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1405"]
[BlackElo "1989"]
[PlyCount "20"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nf3 g6 4. Nc3 Bg7 5. Qd2 Nbd7 6. e4 c5 7. Bh6 Bxh6 8. Qxh6 cxd4 9. Nxd4 Qb6 10. Nb3 Qxf2+ 0-1

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.06.29"]
[Round "3"]
[White "Carrillo Montes, Isabela"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1319"]
[BlackElo "1989"]
[PlyCount "28"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e3 0-0 5. Ne2 d6 6. Nbc3 e5 7. 0-0 Nc6 8. d4 Re8 9. Re1 Bd7 10. a3 a5 11. Bd2 Qc8 12. Qc2 Bf5 13. e4 Bh3 14. Bh1 Nxd4 0-1

[Event "Sabaneta op-B 2nd"]
[Site "Sabaneta Antioquia"]
[Date "2023.06.28"]
[Round "1"]
[White "Betancur Alvarez, Sara Maria"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1314"]
[BlackElo "1989"]
[PlyCount "52"]
[EventDate "2023.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 h6 6. h3 a6 7. a3 d6 8. Be3 Ba7 9. Qd2 Ne7 10. Bxa7 Rxa7 11. 0-0 0-0 12. Nh2 Ng6 13. Ne2 b5 14. Ba2 Nh5 15. d4 Nhf4 16. Nxf4 Nxf4 17. Nf3 Qf6 18. dxe5 dxe5 19. Qe3 Rb7 20. Kh2 Rb6 21. Qc5 Re8 22. Qxc7 Rc6 23. Qa5 Nxg2 24. Rg1 Qxf3 25. Rxg2 Qxh3+ 26. Kg1 Bg4 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.27"]
[Round "10"]
[White "Kostov, Alex"]
[Black "Rodriguez Munoz, Cesar Esteban"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2071"]
[BlackElo "1871"]
[PlyCount "114"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Nc3 Bd6 6. Bg5 c6 7. Nf3 Nbd7 8. Rc1 Qa5 9. a3 Ne4 10. c5 Nxg5 11. Nxg5 Be7 12. Nf3 0-0 13. Bd3 Bg4 14. h3 Bxf3 15. Qxf3 g6 16. 0-0 e5 17. Bb1 exd4 18. exd4 Bf6 19. Rcd1 Rfe8 20. h4 Bxh4 21. Qg4 Qd8 22. Rfe1 Bf6 23. Ne2 Nf8 24. Nf4 Qa5 25. Re3 Rxe3 26. fxe3 Re8 27. Qf3 Bg7 28. e4 dxe4 29. Bxe4 f5 30. Bc2 Re1+ 31. Kh2 Rxd1 32. Qxd1 Qc7 33. g3 Qd7 34. Ne2 Ne6 35. Bb3 Kh8 36. Bxe6 Qxe6 37. b4 h5 38. Nf4 Qa2+ 39. Kh3 Qf7 40. a4 g5 41. Ng2 g4+ 42. Kh2 Qd5 43. Nf4 Qxd4 44. Qe2 Qb2 45. b5 Qxe2+ 46. Nxe2 Bf8 47. bxc6 bxc6 48. Nd4 Bxc5 49. Nxc6 Kg7 50. Ne5 Bd6 51. Nc4 Bc7 52. Kg2 Kg6 53. Ne3 Kg5 54. Nd5 Bd6 55. a5 h4 56. gxh4+ Kxh4 57. Ne3 Kg5 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.27"]
[Round "9"]
[White "Pereira Vera, Henry Alberto"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1828"]
[BlackElo "2071"]
[PlyCount "135"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 b6 3. Nf3 Bb7 4. e3 g6 5. Be2 Bg7 6. 0-0 d6 7. c4 Nbd7 8. Qc2 0-0 9. d3 e5 10. Nbd2 Qe7 11. d4 exd4 12. exd4 Qxe2 13. Rae1 Bxf3 14. gxf3 Rfe8 15. Rxe2 Rxe2 16. Qd3 Rae8 17. Bc1 Nh5 18. Ne4 Rxa2 19. Nc3 Ra1 20. Be3 Rxf1+ 21. Kxf1 c6 22. Ne4 Bf8 23. Qd2 Ndf6 24. Nxf6+ Nxf6 25. Qa2 Re7 26. Bf4 d5 27. Qa4 c5 28. dxc5 bxc5 29. Bd6 Re6 30. Bxf8 Kxf8 31. Qxa7 dxc4 32. Qxc5+ Ke8 33. Qxc4 Nd7 34. f4 Rf6 35. Kg2 h5 36. Kg3 Rf5 37. Qc7 Nf6 38. b4 Nd5 39. Qb8+ Ke7 40. b5 Kf6 41. b6 Nxb6 42. Qxb6+ Kg7 43. Qc7 Kf6 44. Kg2 Kg7 45. Kf1 Rb5 46. Qc3+ Kg8 47. Ke2 Rf5 48. Ke3 Rb5 49. Ke4 Kh7 50. Qf6 Rb4+ 51. Kd5 Kg8 52. f5 Rf4 53. Qd8+ Kg7 54. fxg6 fxg6 55. Qe7+ Rf7 56. Qe5+ Kh7 57. Qe3 Kg7 58. f4 Rf5+ 59. Ke4 Rf7 60. Qg3 Rf5 61. Qd3 Rf7 62. Qd5 Re7+ 63. Kf3 Rf7 64. Kg3 Rf5 65. Qd4+ Kh7 66. Kh4 Kg8 67. Qe4 Rf6 68. Kg5 1-0

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.26"]
[Round "7"]
[White "Jimenez Mendez, William"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "1371"]
[BlackElo "2071"]
[PlyCount "84"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 g6 5. d4 Bg7 6. c4 0-0 7. Nc3 d6 8. Qc2 Nbd7 9. Re1 Re8 10. e4 e5 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Bg5 c6 14. Rad1 Qc7 15. Rd3 Rad8 16. Red1 Qe7 17. Qd2 Rxd3 18. Qxd3 Qb4 19. Rd2 h6 20. Bxf6 Bxf6 21. Qd7 Rd8 22. Qxd8+ Bxd8 23. Rxd8+ Kg7 24. Rd2 Qxc4 25. Bf1 Qb4 26. a3 Qe7 27. Bh3 Qg5 28. Rd1 a5 29. Bf1 b5 30. h4 Qe7 31. Bh3 b4 32. Rd7 bxc3 33. bxc3 Qxa3 34. Rxb7 Qxc3 35. Bd7 a4 36. Be6 Qf3 37. Ra7 a3 38. Ba2 h5 39. Kf1 c5 40. Bd5 c4 41. Bxc4 Qh1+ 42. Ke2 Qxe4+ 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.26"]
[Round "8"]
[White "Kostov, Alex"]
[Black "Ballesteros Diaz, Jefree Daniel"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2071"]
[BlackElo "1686"]
[PlyCount "70"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. Be3 Nf6 6. cxd4 e6 7. Nf3 Nc6 8. Bd3 Bb4+ 9. Nc3 0-0 10. 0-0 Bxc3 11. bxc3 b6 12. Re1 Bb7 13. Qe2 Rac8 14. c4 Qh5 15. h3 Rfd8 16. a4 Nb4 17. Ne5 Nxd3 18. Qxd3 Qxe5 19. dxe5 Rxd3 20. exf6 Rxc4 21. fxg7 Kxg7 22. a5 Rb3 23. axb6 axb6 24. Red1 Bd5 25. Ra7 b5 26. Rda1 Rd3 27. R1a5 b4 28. Rb5 b3 29. Ra6 Rc2 30. Rab6 h6 31. Rb4 h5 32. g4 h4 33. Rd4 Ra2 34. Kf1 Bf3 35. Kg1 Rc2 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.25"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Mena Ardila, Alexander"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2071"]
[BlackElo "1934"]
[PlyCount "67"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. d4 d6 5. Nf3 d5 6. Bd3 Bd6 7. 0-0 0-0 8. Re1 Re8 9. Nbd2 Bf5 10. Nf1 Nd7 11. c3 c6 12. Ng3 Bg6 13. Qc2 Ndf6 14. a4 Qc7 15. b4 Re7 16. Ba3 Rae8 17. Nh4 Nxg3 18. Rxe7 Qxe7 19. hxg3 Bxd3 20. Qxd3 g6 21. Nf3 a5 22. Qd2 Kg7 23. Qb2 Qe2 24. Qb3 Ng4 25. Qa2 Qd3 26. bxa5 Re2 27. Qb3 Bxa3 28. Qxa3 Rxf2 29. Qe7 Re2 30. Qg5 h5 31. Rf1 Rxg2+ 32. Kxg2 Ne3+ 33. Kf2 Nxf1 34. Qe5+ 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.25"]
[Round "5"]
[White "Mesa Baez, Samuel"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "1869"]
[BlackElo "2071"]
[PlyCount "100"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. 0-0 d6 8. c3 Bg4 9. h3 Bh5 10. Nbd2 0-0 11. Re1 Re8 12. Nf1 h6 13. Ng3 Bg6 14. Nh4 Nxe4 15. Nxe4 Qxh4 16. Nxc5 dxc5 17. Bd5 Qf6 18. Qf3 Qxf3 19. gxf3 Re6 20. Bxe6 fxe6 21. f4 Bxd3 22. fxe5 b4 23. Bd2 Rd8 24. h4 Kf7 25. Rac1 Bf5 26. Bf4 Kg6 27. Red1 bxc3 28. bxc3 Bd3 29. Bg3 c4 30. Rd2 Rb8 31. Re1 Ne7 32. Kg2 Nd5 33. Rc1 a5 34. f4 a4 35. Kf3 a3 36. Bf2 Rb2 37. Rg1+ Kf7 38. Be1 Bg6 39. Rdg2 Bh5+ 40. Ke4 g6 41. Rxb2 axb2 42. Bd2 Be2 43. a4 c5 44. a5 Bd3+ 45. Kf3 Nc7 46. Be3 Na6 47. f5 Bxf5 48. Bxh6 b1Q 49. Rxb1 Bxb1 50. Kg4 Be4 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.24"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Cuellar Canosa, Nicolas"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2071"]
[BlackElo "1811"]
[PlyCount "32"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 Bf5 5. Bc4 e6 6. 0-0 Be7 7. c3 0-0 8. Re1 Nc6 9. Nbd2 Qd7 10. Ne4 a6 11. Qe2 Rfe8 12. Ng3 Bg6 13. Ne5 Nxe5 14. Qxe5 Bf6 15. Qe2 e5 16. Qf3 Nb6 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.24"]
[Round "3"]
[White "Rangel, Carlos"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1992"]
[BlackElo "2071"]
[PlyCount "71"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 d6 7. Qe2 Be6 8. Be3 Nf6 9. f3 Qe7 10. 0-0-0 Ne5 11. g4 Nexg4 12. Bxb6 axb6 13. Nd4 Ne5 14. Nxe6 Qxe6 15. h4 0-0 16. Bh3 Qc4 17. Qe3 b5 18. Bf1 Qb4 19. Bxb5 Rxa2 20. Nxa2 Qxb5 21. b3 Ra8 22. Nc3 Qb4 23. Kd2 c5 24. Ra1 Rd8 25. Ra4 Qb6 26. Rha1 Nc6 27. Ra8 Nd4 28. Nd5 Nxd5 29. exd5 h6 30. Qe7 Rxa8 31. Rxa8+ Kh7 32. Qxf7 Qb4+ 33. Kd1 Qc3 34. Qg8+ Kg6 35. Qe8+ Kh7 36. Qe4+ 1-0

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.23"]
[Round "1"]
[White "Estrella Becerra, Fernando"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "1865"]
[BlackElo "2071"]
[PlyCount "52"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 b6 3. Nf3 Bb7 4. g3 g6 5. Bg2 Bg7 6. d4 d6 7. 0-0 0-0 8. b3 Nbd7 9. Bb2 e6 10. Re1 Qe7 11. e4 e5 12. Nd5 Nxd5 13. exd5 f6 14. Qc2 Rae8 15. dxe5 fxe5 16. Nd4 Nc5 17. b4 Qd8 18. bxc5 exd4 19. c6 Bc8 20. Qd2 Qf6 21. Rxe8 Rxe8 22. Rd1 Bg4 23. Bxd4 Qxd4 24. Qxd4 Bxd4 25. Rxd4 Re1+ 26. Bf1 Bh3 0-1

[Event "Bogota El Tablazo op-A"]
[Site "Bogota"]
[Date "2022.06.23"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Barrientos Chavarriaga, Sergio E"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2071"]
[BlackElo "2468"]
[PlyCount "44"]
[EventDate "2022.06.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. c3 e6 7. Bf4 Bd6 8. Bxd6 Qxd6 9. Nbd2 Nge7 10. Qe2 f6 11. Qe3 0-0 12. h3 Bh5 13. 0-0 e5 14. dxe5 fxe5 15. Bc2 e4 16. Nd4 Nxd4 17. Qxd4 Nf5 18. Qa4 Qf4 19. Nb3 Nh4 20. Nd4 Qg5 21. g3 Rxf2 22. Rxf2 Qxg3+ 0-1

[Event "Atlantico Region-ch Amateur"]
[Site "Baranoa"]
[Date "2017.02.12"]
[Round "4.2"]
[White "Kostov, Alex"]
[Black "Caballero, William"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "2071"]
[BlackElo "2038"]
[PlyCount "104"]
[EventDate "2017.02.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Be2 0-0 8. 0-0 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Bf3 Qa5 12. Nxc6 bxc6 13. Qc1 Rb8 14. c3 c5 15. Rd1 Be6 16. Bd5 Bf5 17. Bc4 Qa4 18. Bb3 Qb5 19. Rd5 Rfc8 20. Qd2 a5 21. Rd1 h5 22. Bf4 Ra8 23. Bh6 e6 24. Bxg7 Kxg7 25. Rd7 a4 26. Bc2 Qxb2 27. Bxf5 Qxd2 28. R1xd2 gxf5 29. Kf1 a3 30. Rb7 Rcb8 31. Rdd7 Rxb7 32. Rxb7 Ra5 33. Ke2 Kf6 34. Kd3 Ra4 35. Rb5 Rg4 36. g3 c4+ 37. Kd2 h4 38. Ra5 hxg3 39. hxg3 f4 40. gxf4 Rxf4 41. Ke3 e5 42. Rxa3 Kf5 43. Ra7 f6 44. Rf7 Kg5 45. a4 e4 46. Rg7+ Kf5 47. Rg3 Rh4 48. Kd4 Kf4 49. Re3 f5 50. a5 Rh2 51. Re2 Kf3 52. Ra2 e3 0-1

[Event "Atlantico Region-ch Amateur"]
[Site "Baranoa"]
[Date "2017.02.11"]
[Round "3.1"]
[White "Gonzalez Parejo, Ramon Junior"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2133"]
[BlackElo "2071"]
[PlyCount "35"]
[EventDate "2017.02.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. d4 cxd4 5. cxd4 Nf6 6. Nc3 g6 7. d5 Nb8 8. Nd4 Bg7 9. Be2 0-0 10. 0-0 a6 11. Be3 b5 12. Rc1 Bb7 13. f3 Nbd7 14. a4 b4 15. Nb1 Nc5 16. Nd2 Qd7 17. a5 Rfc8 18. Nc4 1-0

[Event "Maicao op 3rd"]
[Site "Maicao"]
[Date "2014.05.04"]
[Round "7"]
[White "Elias Alvarez, Alfonso Jose"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2040"]
[BlackElo "2068"]
[PlyCount "57"]
[EventDate "2014.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. a3 Bxc3+ 6. Qxc3 Bb7 7. Nf3 0-0 8. Bg5 h6 9. Bh4 d6 10. e3 Qe7 11. Be2 Nbd7 12. Rd1 Rfe8 13. 0-0 Ne4 14. Qc2 g5 15. Bg3 f5 16. Nd2 Ndf6 17. Nxe4 Bxe4 18. Qc3 e5 19. dxe5 dxe5 20. f3 f4 21. Be1 Bg6 22. e4 Bf7 23. c5 Rad8 24. Bf2 Nd7 25. Bb5 Kg7 26. cxb6 cxb6 27. Qc7 Be6 28. Qxa7 Ra8 29. Qc7 1-0

[Event "Maicao op 3rd"]
[Site "Maicao"]
[Date "2014.05.03"]
[Round "5"]
[White "De la Valle, Jose"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "1964"]
[BlackElo "2068"]
[PlyCount "72"]
[EventDate "2014.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Nc3 h6 4. Bh4 Bf5 5. Nf3 Nc6 6. e3 e6 7. a3 Bd6 8. Be2 0-0 9. Nb5 Be7 10. Bg3 Rc8 11. c4 a6 12. Nc3 dxc4 13. Bxc4 Na5 14. Ba2 c5 15. d5 exd5 16. Nxd5 Nxd5 17. Bxd5 Bf6 18. Ne5 Qe7 19. f4 Rcd8 20. 0-0 Be4 21. Bxf7+ Rxf7 22. Qa4 Bxe5 23. fxe5 Rxf1+ 24. Rxf1 Bd3 25. Rc1 Nc6 26. Qb3+ c4 27. Qb6 Rd5 28. a4 Qc5 29. Qxc5 Rxc5 30. e6 Rf5 31. Bd6 Rf6 32. e7 Kf7 33. Bc5 Nxe7 34. e4 Re6 35. Re1 Rxe4 36. Rxe4 Bxe4 0-1

[Event "Maicao op 3rd"]
[Site "Maicao"]
[Date "2014.05.02"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Barraza, Luis Alberto"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2068"]
[BlackElo "1810"]
[PlyCount "63"]
[EventDate "2014.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. Bc4 e6 6. 0-0 Be7 7. Re1 0-0 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Nb6 11. Bb3 d5 12. Bf4 Re8 13. Nd2 Nd7 14. Rad1 Bc5 15. Qd3 Nf8 16. Nf3 Qb6 17. Be3 Bd7 18. Bxc5 Qxc5 19. Nd4 b5 20. Nc2 a5 21. a3 Rec8 22. Re3 Rab8 23. Qe2 Be8 24. Rd4 Qe7 25. h4 Nd7 26. Rg3 Nc5 27. Ba2 Ne4 28. Rh3 Qa7 29. Qe3 Rc7 30. h5 b4 31. axb4 axb4 32. Rxb4 1-0

[Event "Maicao op 3rd"]
[Site "Maicao"]
[Date "2014.05.02"]
[Round "3"]
[White "Mendoza, Rafael Enrique"]
[Black "Kostov, Alex"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2328"]
[BlackElo "2068"]
[PlyCount "42"]
[EventDate "2014.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. a3 d6 8. 0-0 0-0 9. Nbd2 Na5 10. Ba2 c5 11. Re1 Qc7 12. Nf1 Nc6 13. Bg5 Ne8 14. Ne3 Bxg5 15. Nxg5 Nf6 16. c3 h6 17. Nf3 Re8 18. Nh4 Ne7 19. Qf3 Bd7 20. h3 Qc8 21. Rad1 Be6 1/2-1/2

[Event "Maicao op 3rd"]
[Site "Maicao"]
[Date "2014.05.01"]
[Round "1"]
[White "Ruiz Bolanos, Adrian Nicolas"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1539"]
[BlackElo "2068"]
[PlyCount "16"]
[EventDate "2014.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Bb6 8. 0-0 0-0 0-1

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.31"]
[Round "7"]
[White "Kostov, Alex"]
[Black "Hurtado, Felipe"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2068"]
[BlackElo "2132"]
[PlyCount "58"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 dxc4 8. Bxc4 b5 9. Be2 Bb7 10. 0-0 b4 11. Na4 0-0 12. e4 e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Be3 c5 16. Rfd1 Bxe4 17. Qxc5 Qb8 18. f4 Bxf4 19. Bxf4 Qxf4 20. g3 Qh6 21. Qxb4 Qe3+ 22. Kf1 Bf5 23. Qd4 Bh3+ 24. Ke1 Qe7 25. Kf2 Rab8 26. Rac1 Rfe8 27. Bd3 Rbd8 28. Qc5 Ne4+ 29. Bxe4 Qxe4 0-1

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.30"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Munoz, Farid"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2068"]
[BlackElo "2159"]
[PlyCount "34"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. c3 a6 5. Ba4 b5 6. Bc2 Bb7 7. 0-0 Rc8 8. Re1 e6 9. d4 cxd4 10. Nxd4 Nf6 11. Bg5 Be7 12. Nd2 Nc4 13. Rb1 Nxd2 14. Qxd2 Nxe4 15. Bxe4 Bxg5 16. Qe2 Bxe4 17. Qxe4 0-0 0-1

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.30"]
[Round "6"]
[White "Nieto, Manuel Valerio Wald"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1975"]
[BlackElo "2068"]
[PlyCount "60"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 d5 5. 0-0 dxc4 6. Qa4+ c6 7. Qxc4 0-0 8. d3 Nbd7 9. Bg5 Re8 10. Nbd2 Nb6 11. Qc2 Bd7 12. Nb3 Na4 13. Nc5 Nxc5 14. Qxc5 Qc8 15. Bxf6 Bxf6 16. d4 Bh3 17. e4 Bxg2 18. Kxg2 Qc7 19. Rfd1 e6 20. e5 Be7 21. Qc4 Red8 22. b4 Rd5 23. a4 a6 24. Rdb1 Qb6 25. Rb3 Rad8 26. Rab1 R8d7 27. b5 cxb5 28. axb5 a5 29. h4 h5 30. Rc1 Bd8 0-1

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.29"]
[Round "4"]
[White "Tangarife Garcia, Wilson"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "E16"]
[WhiteElo "1681"]
[BlackElo "2068"]
[PlyCount "62"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Qe7 7. 0-0 0-0 8. Nc3 d6 9. a3 Bxc3 10. Bxc3 Nbd7 11. b4 Rfe8 12. Rc1 Rad8 13. e3 e5 14. dxe5 Nxe5 15. Qe2 Ne4 16. Bb2 c5 17. Nxe5 dxe5 18. Bxe4 Bxe4 19. Rfd1 cxb4 20. Rxd8 Rxd8 21. axb4 f6 22. c5 bxc5 23. bxc5 Qb7 24. f4 exf4 25. exf4 Qc6 26. Qc4+ Bd5 27. Qd4 Qe6 28. Qf2 Qe4 29. Kf1 Re8 30. Bd4 Qd3+ 31. Kg1 Re2 0-1

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.28"]
[Round "3"]
[White "Kostov, Alex"]
[Black "Loaiza, Yurani"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2068"]
[BlackElo "1916"]
[PlyCount "43"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. c4 c6 5. Nc3 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 0-0 9. Bh4 Re8 10. Bd3 dxc4 11. Nxc4 Qh5 12. Bg3 b5 13. Ne5 Nxe5 14. Bxe5 Ng4 15. Bg3 e5 16. 0-0 exd4 17. exd4 Nf6 18. Ne4 Re6 19. a3 Bf8 20. Rfe1 Bd7 21. Nxf6+ Rxf6 22. Re5 1-0

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.28"]
[Round "2"]
[White "Lotero, Faiber"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "2177"]
[BlackElo "2068"]
[PlyCount "77"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Qxd4 Bd7 7. Bxc6 Bxc6 8. Bg5 Be7 9. 0-0-0 0-0 10. Kb1 Ng4 11. Bxe7 Qxe7 12. Nd5 Bxd5 13. exd5 Nf6 14. Rhe1 Qd7 15. Re3 b6 16. Nh4 Rfe8 17. Rde1 Rxe3 18. Rxe3 Re8 19. h3 Rxe3 20. fxe3 Qb5 21. c4 Qb4 22. Nf3 Qa4 23. b3 Qe8 24. Kc2 Ne4 25. Nd2 Nxd2 26. Kxd2 a5 27. Kd3 f6 28. Qg4 Qg6+ 29. Qxg6 hxg6 30. c5 dxc5 31. Kc4 Kf7 32. Kb5 Ke7 33. Kc6 Kd8 34. a4 Kc8 35. e4 Kb8 36. d6 cxd6 37. Kxb6 f5 38. exf5 gxf5 39. Kc6 1-0

[Event "Medellin Semana Santa op"]
[Site "Medellin"]
[Date "2013.03.27"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2068"]
[BlackElo "2228"]
[PlyCount "66"]
[EventDate "2013.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Bd7 5. d3 Bc6 6. Nbd2 Nbd7 7. 0-0 g6 8. Nc4 b5 9. Ne3 Rb8 10. Qc2 Bg7 11. h3 0-0 12. Nh2 c4 13. Nhg4 Nxg4 14. Nxg4 Nc5 15. Bh6 Qb6 16. Bxg7 Kxg7 17. Rad1 f6 18. Qd2 cxd3 19. Qh6+ Kh8 20. Bxd3 Nxe4 21. Rfe1 f5 22. Kh2 Rf7 23. f3 fxg4 24. fxe4 gxh3 25. Rf1 Rf2 26. Kxh3 Rbf8 27. Qxf8+ Rxf8 28. Rxf8+ Kg7 29. Rdf1 Qc5 30. g4 Qg5 31. Kg3 Qe5+ 32. Kh3 Bd7 33. R1f2 Qh5+ 0-1

[Event "La Candelaria Cup"]
[Site "Complejo de Raquetas"]
[Date "2013.02.03"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Pabon Sarmiento, David A"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2068"]
[BlackElo "1896"]
[PlyCount "61"]
[EventDate "2013.01.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 g6 7. Nc3 Bg7 8. 0-0 0-0 9. a3 a6 10. h3 Nd7 11. Be3 e5 12. Rc1 h6 13. b4 exd4 14. Nxd4 Nxd4 15. Bxd4 Ne5 16. Nd5 Nc6 17. Bxg7 Kxg7 18. Qb3 Be6 19. Qb2+ f6 20. Bc4 Ne5 21. Qd4 Bxh3 22. f4 Nxc4 23. gxh3 b5 24. Rc3 Qd7 25. Kh2 Qa7 26. Qd1 Rac8 27. Rg3 Kh7 28. Rfg1 g5 29. fxg5 fxg5 30. Rxg5 Rf2+ 31. Kh1 1-0

[Event "La Candelaria Cup"]
[Site "Complejo de Raquetas"]
[Date "2013.02.02"]
[Round "5"]
[White "Paba, Alvaro Jose"]
[Black "Kostov, Alex"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2135"]
[BlackElo "2068"]
[PlyCount "91"]
[EventDate "2013.01.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d6 6. d5 e5 7. e4 g6 8. Be2 Bg7 9. 0-0 0-0 10. Ne1 Nbd7 11. b4 a5 12. Rb1 Qe7 13. Be3 axb4 14. axb4 Ne8 15. Nd3 f5 16. f3 Nef6 17. c5 bxc5 18. bxc5 Ba6 19. c6 fxe4 20. fxe4 Bxd3 21. Qxd3 Nc5 22. Qc4 Rf7 23. Ra1 Rxa1 24. Rxa1 Bf8 25. Ra7 Ne8 26. Ra8 Kg7 27. Nd1 Nf6 28. Nf2 h5 29. Bg5 Kh7 30. Bf3 Bh6 31. Nh3 Rf8 32. Qa2 Bxg5 33. Nxg5+ Kg7 34. Qa7 Rxa8 35. Qxa8 Nxd5 36. h4 Nf4 37. Qc8 Nfe6 38. Nxe6+ Nxe6 39. Be2 Nf4 40. Bc4 Qxh4 41. Qxc7+ Kh6 42. Qxd6 Qe1+ 43. Kh2 Qh4+ 44. Kg1 Qe1+ 45. Kh2 Qh4+ 46. Kg1 1/2-1/2

[Event "La Candelaria Cup"]
[Site "Complejo de Raquetas"]
[Date "2013.02.01"]
[Round "3"]
[White "Rosado Perez, Maria Jose"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1890"]
[BlackElo "2068"]
[PlyCount "60"]
[EventDate "2013.01.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nf6 7. h3 h6 8. Qf3 d6 9. Be3 Be6 10. 0-0-0 0-0 11. g4 Nh7 12. Nd5 Ng5 13. Qe2 Bxe3+ 14. Qxe3 Bxd5 15. exd5 Re8 16. Qc3 Ne4 17. Qf3 Qg5+ 18. Kb1 Na5 19. Bb5 Nxb3 20. axb3 c6 21. dxc6 Qxb5 22. cxb7 Qxb7 23. Qf4 Qb4 24. Qe3 Qc5 25. Qxc5 dxc5 26. Rhf1 Rad8 27. Rxd8 Rxd8 28. Kc1 Kf8 29. f3 Ng5 30. h4 Ne6 0-1

[Event "La Candelaria Cup"]
[Site "Complejo de Raquetas"]
[Date "2013.01.30"]
[Round "1"]
[White "Chavez Quiroz, Gustavo Adolfo"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1618"]
[BlackElo "2068"]
[PlyCount "34"]
[EventDate "2013.01.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Nc3 dxc4 7. 0-0 Bg4 8. b3 cxb3 9. axb3 Bd6 10. Re1 0-0 11. d3 Nd4 12. Ne4 Bxf3 13. gxf3 Qh4 14. Ba3 Bxa3 15. Rxa3 Qh3 16. Re3 Nf5 17. Re1 Nh4 0-1

[Event "Cesar Cup 3rd"]
[Site "Valledupar"]
[Date "2012.10.21"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Chacon Cordoba, Edgardo"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2080"]
[BlackElo "1894"]
[PlyCount "29"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d4 d5 5. exd5 Qxd5 6. Be3 cxd4 7. Nxd4 Nf6 8. Nd2 Be7 9. Qf3 Nxd4 10. Bxd4 0-0 11. Bc4 Qxf3 12. Nxf3 Bd7 13. Ne5 Rfd8 14. Nxd7 Rxd7 15. 0-0-0 1/2-1/2

[Event "Cesar Cup 3rd"]
[Site "Valledupar"]
[Date "2012.10.20"]
[Round "3"]
[White "Castaneda, Jorge Luis"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2182"]
[BlackElo "2080"]
[PlyCount "34"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 d6 5. 0-0 Nbd7 6. c3 g6 7. Re1 Bg7 8. e4 e5 9. Nbd2 0-0 10. Nf1 Re8 11. Ng3 Re7 12. d5 Qf8 13. Bg5 Bh6 14. b4 a5 15. a3 Bxg5 16. Nxg5 Qh6 17. Nf3 Nh5 0-1

[Event "Cesar Cup 3rd"]
[Site "Valledupar"]
[Date "2012.10.20"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Garay, Edwin"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2080"]
[BlackElo "1704"]
[PlyCount "33"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Bf4 g6 6. Nf3 Bg7 7. 0-0 0-0 8. Re1 Bg4 9. Nbd2 Nbd7 10. h3 Bxf3 11. Nxf3 a6 12. a4 Rc8 13. c3 e6 14. Qd2 Nh5 15. Bh6 Re8 16. Bxg7 Kxg7 17. a5 1-0

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.19"]
[Round "9"]
[White "Kostov, Alex"]
[Black "Echeverry, Maria Yesenia"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2080"]
[BlackElo "1872"]
[PlyCount "66"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 c5 5. dxc5 Bxc5 6. Qe2 0-0 7. Ngf3 Nc6 8. 0-0 a6 9. e5 Nd7 10. c4 Nb6 11. Rd1 h6 12. cxd5 Nxd5 13. Ne4 Be7 14. Ng3 Qe8 15. Qe4 f5 16. exf6 Nxf6 17. Qe2 Nb4 18. Bb1 Nbd5 19. Ne5 Bd6 20. Ng6 Rf7 21. Nh5 Bf8 22. Nxf6+ Nxf6 23. Qc2 e5 24. b3 Bg4 25. Re1 Rc8 26. Qd3 e4 27. Qe3 Bc5 28. Qg3 Nh5 29. Qxg4 Bxf2+ 30. Kf1 Qb5+ 31. Qe2 Bxe1+ 32. Kxe1 Rxc1+ 33. Kd2 Qg5+ 0-1

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.18"]
[Round "8"]
[White "Salcedo, Diana"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2014"]
[BlackElo "2080"]
[PlyCount "91"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. e4 d6 7. Be2 Bg7 8. Be3 Bd7 9. 0-0 0-0 10. Rc1 Rc8 11. f4 e5 12. Ndb5 exf4 13. Bxf4 Qb6+ 14. Kh1 Ne5 15. Bxe5 dxe5 16. Rxf6 Qxf6 17. Qxd7 Rcd8 18. Qxb7 a6 19. Nc7 Rd2 20. Bf3 Bh6 21. Rb1 Qh4 22. N7d5 Rd8 23. Qb6 Bg5 24. Rd1 Rf2 25. Qb3 Rd2 26. Ne2 f5 27. Rxd2 Bxd2 28. Qd1 Bg5 29. Nec3 Bf4 30. h3 Be3 31. Qe2 Bd4 32. b4 Rf8 33. Kh2 fxe4 34. Qxe4 Qg5 35. Ne2 Bf2 36. Nc7 Qf6 37. c5 a5 38. bxa5 Qe7 39. Nd5 Qxc5 40. Qxe5 Rf5 41. Qe6+ Kg7 42. a6 Bh4 43. Qd7+ Rf7 44. Qa4 Bd8 45. Qd4+ Qxd4 46. Nxd4 1-0

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.17"]
[Round "7"]
[White "Kostov, Alex"]
[Black "Munoz Galvez, Jhon Edison"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2080"]
[BlackElo "2236"]
[PlyCount "15"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Be2 Nbd7 5. d3 g6 6. 0-0 Bg7 7. Re1 0-0 8. Bd2 0-1

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.16"]
[Round "6"]
[White "Diaz Herrera, Leider Andres"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "1921"]
[BlackElo "2080"]
[PlyCount "68"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. 0-0 d6 8. c3 0-0 9. Re1 Na5 10. Bc2 c5 11. Nbd2 Qc7 12. Nf1 Nc6 13. Ng3 h6 14. Bb3 a5 15. d4 cxd4 16. cxd4 a4 17. dxe5 dxe5 18. Bc2 Bg4 19. Bd3 Nd4 20. Be3 Bc5 21. Rc1 Qb6 22. Kh1 Rfd8 23. Nf5 Bxf5 24. exf5 e4 25. Rxc5 Qxc5 26. Bxd4 Qd5 27. Be2 Rac8 28. Bc3 exf3 29. Qxd5 Nxd5 30. Bxf3 Nxc3 31. bxc3 Rxc3 32. h3 Kf8 33. Rb1 Rb8 34. Bd1 Ra3 0-1

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.15"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Martinez Paipa, Hernan"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2080"]
[BlackElo "1940"]
[PlyCount "39"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 e6 5. 0-0 Be7 6. d3 Nc6 7. Nbd2 0-0 8. Re1 Qc7 9. Nf1 d5 10. exd5 exd5 11. d4 b6 12. Ne3 c4 13. Qc2 g6 14. Bf1 Re8 15. g3 Be6 16. Bg2 Rad8 17. Nf1 Bf5 18. Qa4 Ne4 19. Ne3 Bf6 20. Nxf5 1-0

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.14"]
[Round "4"]
[White "Iafrancesco, Esteban"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1819"]
[BlackElo "2080"]
[PlyCount "48"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c5 3. Bg2 Nc6 4. e3 e5 5. Nc3 d6 6. Nge2 Be6 7. b3 Qd7 8. d4 Bh3 9. 0-0 h5 10. dxc5 h4 11. Nd5 hxg3 12. fxg3 Bxg2 13. Nxf6+ gxf6 14. Kxg2 Qh3+ 15. Kf2 Qxh2+ 16. Ke1 0-0-0 17. Rxf6 Qg2 18. Rf1 Rh1 19. Rxh1 Qxh1+ 20. Kd2 dxc5+ 21. Nd4 Rxd4+ 22. exd4 Bh6+ 23. Ke2 Nxd4+ 24. Qxd4 exd4 0-1

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.13"]
[Round "3"]
[White "Kostov, Alex"]
[Black "Benavides Moncayo, Olga"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2080"]
[BlackElo "1899"]
[PlyCount "37"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nf6 6. Bd3 Be7 7. 0-0 0-0 8. h3 Nc6 9. dxc5 Bxc5 10. Nbd2 Re8 11. Nb3 Bb6 12. Bg5 Qd6 13. Bc2 Ne4 14. Qd3 Bf5 15. Nbd4 Bg6 16. Qd1 Rac8 17. Be3 Nxd4 18. Bxd4 Bc7 19. Be3 0-1

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.12"]
[Round "2"]
[White "Zapata, Alonso"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2467"]
[BlackElo "2080"]
[PlyCount "37"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. Re1 0-0 8. e5 Ne8 9. Bf4 d6 10. Bxc6 bxc6 11. Nxd4 Qd7 12. Nc3 d5 13. Bg3 g6 14. Qf3 Ng7 15. Nxc6 Qxc6 16. Nxd5 Kh8 17. Nxe7 Qxf3 18. gxf3 Bb7 19. Bh4 1-0

[Event "Bogota op 10"]
[Site "Bogota"]
[Date "2012.10.11"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Aragon Aviles, Sandra"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2080"]
[BlackElo "1745"]
[PlyCount "43"]
[EventDate "2012.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Bc5 7. e5 Nd5 8. c3 0-0 9. cxd4 Bb6 10. Bc2 d6 11. Qd3 g6 12. Bg5 Ncb4 13. Qd2 Qd7 14. Bb3 Ba5 15. Bxd5 Nxd5 16. Qxa5 dxe5 17. dxe5 Qc6 18. Nc3 Nb6 19. Qb4 h5 20. Ne4 Bg4 21. Nf6+ Kh8 22. Qf4 1-0

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.09"]
[Round "9"]
[White "Nunez V, Daniel Fernando"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2211"]
[BlackElo "2080"]
[PlyCount "57"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. Nc3 d5 5. cxd5 Nxd5 6. Bg2 Nc7 7. 0-0 e5 8. d3 Be7 9. Nd2 0-0 10. Nc4 f6 11. f4 exf4 12. Bxf4 Ne6 13. Bd2 Re8 14. Nd5 Bd7 15. a4 b6 16. Bc3 Rc8 17. e3 Ng5 18. Nf4 Kh8 19. Qh5 Bf5 20. g4 Be6 21. Nxe6 Nxe6 22. Be4 Ng5 23. Bf5 Rg8 24. Bxc8 Qxc8 25. h4 Nh3+ 26. Kh2 g6 27. Qd5 Qxg4 28. Qxc6 Qxh4 29. Qxf6+ 1-0

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.08"]
[Round "8"]
[White "Kostov, Alex"]
[Black "Saladen Dulce, Rafael"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2080"]
[BlackElo "2212"]
[PlyCount "18"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nbd7 5. d3 c4 6. 0-0 cxd3 7. Bxd3 g6 8. Re1 Bg7 9. Bf4 0-0 1/2-1/2

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.07"]
[Round "6"]
[White "Sanchez, Victor Hugo"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2235"]
[BlackElo "2080"]
[PlyCount "39"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d4 exd4 7. Re1 0-0 8. e5 Nd5 9. Nxd4 Nxd4 10. Qxd4 Nb6 11. Bb3 c5 12. Qe4 d5 13. exd6 Bxd6 14. Bf4 Bxf4 15. Qxf4 Bd7 16. Nd2 Bc6 17. Rad1 Nd5 18. Qg3 Nf6 19. Nc4 Qb8 20. Ne5 1-0

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.06"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Ruiz Castillo, Joshua Daniel"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2080"]
[BlackElo "2315"]
[PlyCount "115"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. d3 0-0 7. Bg5 Nc6 8. Nbd2 Bd7 9. Nc4 Qc7 10. Qd2 b5 11. Ne3 e6 12. h3 Rab8 13. Nh2 Ne8 14. f4 f6 15. Bh4 Ne7 16. d4 cxd4 17. cxd4 d5 18. e5 Nc6 19. Nf3 Qb6 20. Bf2 f5 21. Nc2 b4 22. Nce1 Na5 23. b3 Nc7 24. Nd3 Rfc8 25. Nc5 Bb5 26. Rfc1 Bf8 27. Bxb5 Qxb5 28. Na4 Nc4 29. Qe2 Nb6 30. Qxb5 Nxb5 31. Nxb6 axb6 32. Be1 h6 33. Kf2 Ra8 34. Rxc8 Rxc8 35. Ke3 Rc2 36. Bd2 Rb2 37. Kd3 Be7 38. g4 fxg4 39. hxg4 Kf7 40. f5 exf5 41. gxf5 gxf5 42. Bxh6 Rf2 43. Ke3 Rg2 44. Bf4 Nc3 45. Rh1 Nxa2 46. Rh7+ Rg7 47. Rh6 Nc1 48. e6+ Kg8 49. Ne5 Rg2 50. Kf3 Rg1 51. Ng6 Kg7 52. Nxe7 Rf1+ 53. Kg3 Ne2+ 54. Kg2 Nxf4+ 55. Kxf1 Kxh6 56. Nxf5+ Kg6 57. Kf2 Nxe6 58. Ne7+ 1/2-1/2

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.06"]
[Round "4"]
[White "Morales, Jhon Alexander"]
[Black "Kostov, Alex"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2324"]
[BlackElo "2080"]
[PlyCount "39"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 g6 6. Nc3 Bg7 7. Qc2 d6 8. d4 Nbd7 9. e4 e5 10. d5 0-0 11. Nh4 Nh5 12. Bh3 Bc8 13. Ng2 Ndf6 14. Bxc8 Qxc8 15. f3 Ne8 16. g4 Nhf6 17. Bg5 h6 18. Bh4 Qd7 19. Qa4 Qxa4 20. Nxa4 1/2-1/2

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.05"]
[Round "3"]
[White "Kostov, Alex"]
[Black "Escobar Forero, Alder"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2080"]
[BlackElo "2460"]
[PlyCount "44"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Nxd4 Nc5 7. Bd3 g6 8. h3 Bg7 9. Be3 0-0 10. Qf3 Nxd3+ 11. cxd3 c5 12. Nde2 Rb8 13. a4 b6 14. 0-0 Bb7 15. d4 Qe7 16. Ng3 Nxe4 17. Ngxe4 f5 18. Rad1 Rbe8 19. Nf6+ Rxf6 20. Nd5 Bxd5 21. Qxd5+ Qe6 22. Qxe6+ Rfxe6 0-1

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.05"]
[Round "2"]
[White "Solano, William"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1887"]
[BlackElo "2080"]
[PlyCount "28"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 Nbd7 7. Nbd2 c5 8. Bb2 b6 9. c4 Bb7 10. Rc1 Bh6 11. dxc5 Nxc5 12. b4 Nce4 13. Nxe4 dxe4 14. Nd4 Bxc1 0-1

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.04"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Cespedes Galindo, Estefania"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2080"]
[BlackElo "1789"]
[PlyCount "37"]
[EventDate "2012.10.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nf6 6. Bd3 c4 7. Bc2 Bg4 8. Bg5 Be7 9. 0-0 0-0 10. Nbd2 Qc7 11. Re1 Nc6 12. Nf1 h6 13. Bh4 Rfe8 14. Ne3 Be6 15. b3 b5 16. a4 a6 17. Nf5 Bxf5 18. Bxf5 Nd7 19. axb5 1-0

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.07"]
[Round "8"]
[White "Kostov, Alex"]
[Black "Uribe Sanchez, Alejandro"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2084"]
[BlackElo "1780"]
[PlyCount "65"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 g6 5. Bb5+ Bd7 6. Qe2 Bg7 7. e5 dxe5 8. Nxe5 0-0 9. Nxd7 Nbxd7 10. 0-0 a6 11. Ba4 b5 12. Bb3 c4 13. Bc2 Nc5 14. a4 Qd7 15. Rd1 Rad8 16. Na3 Nh5 17. axb5 axb5 18. d4 cxd3 19. Qe3 Qd5 20. Nxb5 e5 21. Na3 Nf4 22. f3 Qc6 23. b4 Nce6 24. Bb3 Qxc3 25. Rb1 Nd4 26. Bd2 Qc8 27. Qe4 Nde2+ 28. Kh2 Rd4 29. Qe3 Qf5 30. Qf2 e4 31. Nc4 Be5 32. Nxe5 Qxe5 33. Be3 0-1

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.06"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Arango, Andres Mauricio"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2084"]
[BlackElo "2141"]
[PlyCount "103"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nc6 6. Be3 Qb6 7. Qb3 c4 8. Qc2 g6 9. b3 Bf5 10. Qd1 cxb3 11. axb3 Bg7 12. Be2 Nf6 13. Nbd2 Ne4 14. Nxe4 Bxe4 15. 0-0 h6 16. Bd3 f5 17. Be2 0-0 18. Nd2 f4 19. Nxe4 dxe4 20. Bc1 Kh7 21. Ba3 Rf5 22. f3 e3 23. Bd3 Rg5 24. Qc2 Rc8 25. Bc5 Qc7 26. Qb1 b6 27. Ba3 Qd7 28. Ra2 Ne7 29. Bxe7 Qxe7 30. Qe1 a5 31. Be4 Qe6 32. d5 Rxd5 33. Bxd5 Qxd5 34. c4 Qd3 35. Qb1 Rd8 36. Qxd3 Rxd3 37. Rb1 Bc3 38. Kf1 Bb4 39. Rc2 g5 40. Ke2 Rd6 41. Rd1 Rg6 42. Rd7+ Kg8 43. Rc1 Rc6 44. Rcd1 Bd2 45. g3 fxg3 46. hxg3 Kf8 47. Rh1 Ke8 48. Rh7 a4 49. bxa4 Rxc4 50. R1xh6 Rxa4 51. Rxb6 Rd4 52. Rb8+ 1-0

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.06"]
[Round "7"]
[White "Martinez Zuluaica, Julian"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2166"]
[BlackElo "2084"]
[PlyCount "61"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. b3 0-0 7. Bb2 d6 8. Nbd2 Nbd7 9. Re1 Ne4 10. c4 Bf6 11. Ne5 dxe5 12. Nxe4 Bxe4 13. Bxe4 Rc8 14. d5 Nc5 15. Bg2 exd5 16. cxd5 a5 17. a3 a4 18. b4 Nb3 19. Ra2 Qd6 20. Qd3 Rfd8 21. Qb5 Ra8 22. Bc3 g6 23. Rc2 Bg7 24. Bb2 f5 25. Rc6 Qd7 26. Qc4 Rac8 27. d6+ Kh8 28. dxc7 Re8 29. Bd5 b5 30. Be6 Qd2 31. Qc3 1-0

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.05"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Cifuentes, John Jairo"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2084"]
[BlackElo "2124"]
[PlyCount "80"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 Nc6 5. Bd3 e6 6. 0-0 Be7 7. Bc2 Bd7 8. Re1 a5 9. a3 Ne5 10. d4 Nxf3+ 11. Qxf3 cxd4 12. cxd4 e5 13. Be3 0-0 14. Nc3 Qb8 15. Rad1 b5 16. dxe5 dxe5 17. Bg5 Be6 18. Nd5 Nxd5 19. exd5 Bxg5 20. dxe6 fxe6 21. Qe4 g6 22. Qg4 Qb6 23. Bxg6 Rxf2 24. Kh1 h6 25. Be4 Raf8 26. Qh5 R2f6 27. Bf3 Qf2 28. Rxe5 Qg3 29. Ree1 Bf4 30. Qg4+ Qxg4 31. Bxg4 Bg3 32. Rg1 e5 33. Bf3 Bf2 34. Rgf1 Bd4 35. Bd5+ Kg7 36. Rxf6 Rxf6 37. b3 Rf2 38. a4 bxa4 39. bxa4 h5 40. Rb1 h4 0-1

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.05"]
[Round "4"]
[White "Lora, Joel Fernando"]
[Black "Kostov, Alex"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2147"]
[BlackElo "2084"]
[PlyCount "102"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Qe7 7. 0-0 0-0 8. a3 Bxd2 9. Nbxd2 d6 10. Qc2 Nbd7 11. Nh4 Bxg2 12. Kxg2 c5 13. Qd3 d5 14. Rfd1 Rfd8 15. cxd5 Nxd5 16. Nhf3 Rac8 17. Rac1 Qf6 18. Ne4 Qg6 19. Kh1 cxd4 20. Qxd4 N7f6 21. Nxf6+ Qxf6 22. Qxf6 Nxf6 23. Rxd8+ Rxd8 24. Rc7 a5 25. Ne5 h6 26. Nd3 e5 27. f3 e4 28. fxe4 Nxe4 29. Kg2 Rd6 30. b4 axb4 31. axb4 g6 32. h4 h5 33. Kf3 Nf6 34. Ne5 Nd5 35. Rc8+ Kg7 36. b5 Re6 37. Nd3 Re3+ 38. Kf2 Re6 39. Ne1 Nf6 40. Rc6 Ng4+ 41. Kf1 Nh2+ 42. Kg1 Ng4 43. Nf3 Ne3 44. Kf2 Nf5 45. e3 Nxe3 46. Nd4 Ng4+ 47. Kf3 Ne5+ 48. Ke4 Nxc6+ 49. Nxe6+ Kf6 50. Nc7 Na7 51. Kf4 Nc8 1/2-1/2

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.04"]
[Round "3"]
[White "Munoz Monroy, Cinthya Carolina"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1831"]
[BlackElo "2084"]
[PlyCount "54"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 d3 6. Qxd3 d6 7. 0-0 Qe7 8. Bf4 Nf6 9. Re1 Ng4 10. Bg3 Nge5 11. Nxe5 Nxe5 12. Bxe5 dxe5 13. Qg3 0-0 14. Nd2 Re8 15. Nf3 Qf6 16. Rad1 Be6 17. Qxe5 Bxf2+ 18. Kxf2 Bxc4 19. Qxc7 Bxa2 20. Qxb7 Reb8 21. Qc7 Rxb2+ 22. Kg1 h6 23. Rd6 Be6 24. Rf1 a5 25. Rf2 Rb1+ 26. Rf1 Rxf1+ 27. Kxf1 Bc4+ 0-1

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.18"]
[Round "8"]
[White "Pazos Gambarrotti, Plinio Efrain"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2248"]
[BlackElo "2080"]
[PlyCount "105"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. a3 Bb7 5. Nc3 d6 6. d5 e5 7. e4 g6 8. Bd3 Bg7 9. 0-0 0-0 10. b4 Nbd7 11. Rb1 a5 12. h3 Qe7 13. Be3 Nh5 14. Nd2 Nf4 15. Bc2 f5 16. Nb5 axb4 17. axb4 c6 18. dxc6 Bxc6 19. Bxf4 exf4 20. exf5 Ne5 21. Nd4 Bb7 22. Be4 Bxe4 23. Nxe4 Nxc4 24. f6 Bxf6 25. Nxf6+ Qxf6 26. Rb3 Ra2 27. Nf3 Ne5 28. b5 Rfa8 29. Rb1 Nxf3+ 30. Qxf3 Ra1 31. Qd5+ Kf8 32. Rbd1 R8a5 33. Qb7 Rxd1 34. Rxd1 Ra1 35. Rxa1 Qxa1+ 36. Kh2 Qd4 37. Qxh7 f3 38. Qxg6 fxg2 39. Qf5+ Ke7 40. Kxg2 Qg7+ 41. Kf3 Qc3+ 42. Kg4 Qc4+ 43. Kg5 d5 44. Qf6+ Kd7 45. Qxb6 Qc1+ 46. f4 Qc3 47. Qc6+ Qxc6 48. bxc6+ Kxc6 49. Kg4 Kc5 50. Kf3 Kd6 51. h4 Ke6 52. Ke3 Kf5 53. h5 1-0

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.17"]
[Round "7"]
[White "Kostov, Alex"]
[Black "Posada Zuluaga, Juan Manuel"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2080"]
[BlackElo "2012"]
[PlyCount "75"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. Bc4 Nb6 6. Bb3 d5 7. exd6 Qxd6 8. d4 cxd4 9. Qxd4 Nc6 10. Qxd6 Bxd6 11. Nbd2 0-0 12. Nc4 Nxc4 13. Bxc4 b6 14. Be3 Bb7 15. 0-0-0 Rfd8 16. Rd2 Na5 17. Be2 Kf8 18. Rhd1 Ke7 19. g3 Bd5 20. b4 Nc4 21. Bxc4 Bxf3 22. Re1 Rac8 23. Bg5+ Kd7 24. Bb5+ Kc7 25. Bxd8+ Rxd8 26. Re3 Bb7 27. Red3 Be4 28. Rd4 Bg6 29. f4 f6 30. Rc4+ Kb7 31. Rc6 Bc7 32. Rxd8 Bxd8 33. Rxe6 a6 34. Be2 Bf7 35. Rd6 Kc7 36. Rd2 b5 37. c4 bxc4 38. Bxc4 1-0

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.16"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Dominguez, Ramiro"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2080"]
[BlackElo "2204"]
[PlyCount "37"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nxd4 9. Qxd4 Nc5 10. Bf4 b5 11. Bb3 0-0 12. Nc3 Bb7 13. Rad1 Ne6 14. Qe3 Bc5 15. Qg3 b4 16. Nd5 Kh8 17. Qg4 Nxf4 18. Nxf4 f5 19. Ng6+ 1-0

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.16"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Duran Barraza, Mateo Andres"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2080"]
[BlackElo "1852"]
[PlyCount "79"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Nf3 Nc6 6. c3 e6 7. Bf4 Be7 8. Nbd2 0-0 9. h3 b6 10. 0-0 Bb7 11. Ne5 Rc8 12. Ndf3 Ne8 13. Re1 Nxe5 14. dxe5 g6 15. Qd2 Ng7 16. g4 Qd7 17. Bg5 Bxg5 18. Qxg5 Qd8 19. Qh6 f6 20. Re2 Ne8 21. exf6 Rxf6 22. Ng5 Qe7 23. Rae1 Nc7 24. Qh4 Re8 25. Nxh7 Rf7 26. Qxe7 Rexe7 27. Ng5 Rf6 28. Re3 Kg7 29. Bf1 Kh6 30. Nf3 Kg7 31. Nd4 Kf7 32. Kg2 g5 33. Kg3 Ne8 34. Re5 Nd6 35. Bd3 Nc4 36. Bxc4 dxc4 37. Rxg5 Ke8 38. Rge5 Kd7 39. f4 Bd5 40. f5 1-0

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.15"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Pina Vega, Sulennis"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2080"]
[BlackElo "2310"]
[PlyCount "41"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. Bd3 Qc7 5. h3 g6 6. Nf3 Nbd7 7. Be3 Bg7 8. 0-0 0-0 9. Re1 e5 10. dxe5 dxe5 11. Nbd2 h6 12. Qe2 b6 13. Nf1 Nh5 14. N3h2 Bb7 15. Rad1 Rad8 16. Bc2 Rfe8 17. Bc1 Nf4 18. Qf3 Nf8 19. Ne3 N4e6 20. h4 c4 21. Nd5 0-1

[Event "Cartagena IRT op 4th"]
[Site "Cartagena"]
[Date "2012.06.15"]
[Round "3"]
[White "Martinez, Cristian"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C98"]
[WhiteElo "2210"]
[BlackElo "2080"]
[PlyCount "67"]
[EventDate "2012.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nb7 13. Nbd2 Nd8 14. Nf1 Ne8 15. Ng3 g6 16. Bh6 Ng7 17. Nh2 f6 18. a4 Rb8 19. axb5 axb5 20. Ng4 Nf7 21. Be3 b4 22. c4 Bd7 23. Nh6+ Nxh6 24. Bxh6 Ra8 25. Qd2 Rxa1 26. Rxa1 Qb7 27. f4 Ra8 28. Rf1 Qa6 29. Bd3 Qa2 30. fxe5 fxe5 31. Bg5 Bxg5 32. Qxg5 Rf8 33. Rxf8+ Kxf8 34. Qf6+ 1-0

[Event "Barranquilla op 12"]
[Site "Barranquilla"]
[Date "2011.12.30"]
[Round "6"]
[White "Chavez Lazo, Jorge Leonidas"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "2118"]
[BlackElo "2059"]
[PlyCount "107"]
[EventDate "2011.12.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d3 Qc7 12. Nbd2 Nc6 13. a4 Rb8 14. axb5 axb5 15. Nf1 d5 16. exd5 Nxd5 17. d4 exd4 18. cxd4 c4 19. Ng3 g6 20. Bh6 Re8 21. Ng5 Ncb4 22. Bb1 Bb7 23. N5e4 Qc6 24. Qg4 Bf8 25. Bxf8 Kxf8 26. Qh4 Nf6 27. Qh6+ Kg8 28. Nf5 Nh5 29. Nfd6 Re7 30. Nxb7 Rexb7 31. g4 Nf6 32. g5 Nh5 33. Nc5 Rc7 34. Be4 Qd6 35. Rad1 Qf8 36. Qxf8+ Kxf8 37. Kh2 Re7 38. Bf3 Nf4 39. Kg3 Rxe1 40. Rxe1 Nfd3 41. Nd7+ Kg7 42. Re7 Rd8 43. Ne5 Nxe5 44. dxe5 Nd5 45. Rb7 c3 46. bxc3 Nxc3 47. e6 Rd6 48. e7 Re6 49. Kf4 Ne2+ 50. Kg4 Nc3 51. Bc6 f5+ 52. gxf6+ Kxf6 53. e8Q h5+ 54. Kf3 1-0

[Event "Barranquilla op 12"]
[Site "Barranquilla"]
[Date "2011.12.29"]
[Round "4"]
[White "Kostov, Alex"]
[Black "Barrios, Aldair"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2059"]
[BlackElo "1906"]
[PlyCount "65"]
[EventDate "2011.12.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Be3 g6 7. Nc3 Bg7 8. b3 0-0 9. Rc1 Qc7 10. Be2 Bd7 11. Nf3 a5 12. 0-0 f5 13. c5 Nc8 14. Qd2 Be6 15. Ng5 Bf7 16. Nxf7 Kxf7 17. Rfe1 Rd8 18. Nd5 Qc6 19. cxd6 Qxd6 20. Nc7 Nb6 21. Nxa8 Nxa8 22. Qxa5 Nc6 23. Qb5 Nxd4 24. Bc4+ Kf8 25. Qxb7 Nb6 26. Bxd4 Bxd4 27. Be6 Be5 28. Rxe5 Qxe5 29. Qxb6 Rd6 30. Qb8+ Kg7 31. Qg8+ Kh6 32. Bc4 Rd2 33. Qe6 1-0

[Event "Barranquilla op 12"]
[Site "Barranquilla"]
[Date "2011.12.29"]
[Round "5"]
[White "Manotas, S Franklin"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C98"]
[WhiteElo "1969"]
[BlackElo "2059"]
[PlyCount "106"]
[EventDate "2011.12.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. d5 Nd8 14. Nf1 Ne8 15. Ng3 g6 16. a4 Rb8 17. b3 Ng7 18. Be3 b4 19. c4 Kh8 20. Nh2 f5 21. exf5 gxf5 22. f4 Bh4 23. Nhf1 Qf7 24. Kh2 Rb7 25. Qf3 e4 26. Qe2 Rg8 27. Reb1 Qg6 28. Bd1 Ne8 29. Nh1 Rbg7 30. g3 Nf7 31. Bc1 Bf6 32. Bb2 Qh6 33. Ne3 Rg6 34. Qh5 Qg7 35. Bxf6 Nxf6 36. Nxf5 Nxh5 37. Nxg7 Nxg3 38. Nxg3 R8xg7 39. Bg4 Bxg4 40. hxg4 Rxg4 41. Rg1 Rh4+ 42. Kg2 Rxf4 43. Rae1 Ne5 44. Re3 Nf3 45. Rh1 Nd4 46. Kh3 Rf3 47. Rxf3 exf3 48. Re1 Rf7 49. Re8+ Kg7 50. Nh5+ Kg6 51. Ng3 Nxb3 52. Re6+ Rf6 53. Re8 Nd2 0-1

[Event "Cartagena Iderbol Cup"]
[Site "Cartagena"]
[Date "2011.12.27"]
[Round "4.5"]
[White "Dominguez, Ramiro"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "2174"]
[BlackElo "2059"]
[PlyCount "51"]
[EventDate "2011.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d3 Qc7 12. Nbd2 Nc6 13. Nf1 d5 14. Ng3 dxe4 15. dxe4 Be6 16. Bg5 Rad8 17. Qe2 h6 18. Bxf6 Bxf6 19. a4 Bc4 20. Qe3 Ne7 21. Nh5 Rd6 22. b3 Be6 23. Nxf6+ gxf6 24. Qxh6 Ng6 25. Nh4 Nf4 26. Re3 1-0

[Event "Cartagena Iderbol Cup"]
[Site "Cartagena"]
[Date "2011.12.27"]
[Round "3.9"]
[White "Maldonado Barrera, Lina Eulalia"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "1787"]
[BlackElo "2059"]
[PlyCount "68"]
[EventDate "2011.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 g6 5. d4 Bg7 6. c4 0-0 7. Nc3 d6 8. b3 Nbd7 9. Re1 Re8 10. Bb2 Ne4 11. Qc2 Nxc3 12. Bxc3 e5 13. e4 Qe7 14. Rad1 Qf8 15. Bh3 Rad8 16. d5 Bc8 17. Qe2 Nf6 18. Qf1 Nh5 19. Nh4 Bf6 20. Nf3 h6 21. Bd2 Kh7 22. Kh1 Qe7 23. Bxc8 Rxc8 24. Qg2 Qd7 25. h4 Bg7 26. Kh2 Rf8 27. Qh3 f5 28. Bc1 Rf7 29. Nd2 Rcf8 30. Re2 Nf6 31. Rf1 Ng4+ 32. Kg2 f4 33. gxf4 exf4 34. Qf3 Ne5 0-1

[Event "Cartagena Iderbol Cup"]
[Site "Cartagena"]
[Date "2011.12.26"]
[Round "1.13"]
[White "Kostov, Alex"]
[Black "Hernandez De la Hoz, Alvaro Jose"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2059"]
[BlackElo "1604"]
[PlyCount "53"]
[EventDate "2011.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 d6 5. a3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 8. d3 h6 9. Be3 Be7 10. 0-0 Nd4 11. Qd1 0-0 12. f4 Nd7 13. Nd5 exf4 14. Bxf4 Ne5 15. Ba2 Bg5 16. c3 Ne6 17. Bh2 Rc8 18. Qe2 b5 19. Rf5 g6 20. Rf2 c4 21. Bxe5 cxd3 22. Qxd3 dxe5 23. Qxb5 Rc5 24. Qe2 Nf4 25. Qf3 Bh4 26. Rff1 Qg5 27. Nxf4 1-0

[Event "Cartagena Iderbol Cup"]
[Site "Cartagena"]
[Date "2011.12.26"]
[Round "2.3"]
[White "Kostov, Alex"]
[Black "Panesso Rivera, Henry"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "2059"]
[BlackElo "2324"]
[PlyCount "54"]
[EventDate "2011.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nxd4 9. Qxd4 Nc5 10. Bf4 0-0 11. Nc3 Ne6 12. Qe4 Nxf4 13. Qxf4 d6 14. Rad1 dxe5 15. Qxe5 Bd6 16. Qh5 g6 17. Qf3 Qh4 18. h3 Bf5 19. Bb3 b5 20. Nd5 Be5 21. Rfe1 Rae8 22. c3 h5 23. a3 c6 24. Nb4 c5 25. Nc6 Bf6 26. Bd5 Kg7 27. Kf1 Bg4 0-1

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.14"]
[Round "7"]
[White "De Arco, Luis Carlos"]
[Black "Kostov, Alex"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2272"]
[BlackElo "2059"]
[PlyCount "129"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 8. Be3 Rd8 9. 0-0 Nf6 10. Nc3 Bg4 11. Rab1 Rxd4 12. Bxd4 Nd7 13. Bxg7 Bxg7 14. Rfe1 Be6 15. Nd5 cxd5 16. exd5 Nc5 17. dxe6 c6 18. exf7+ Kxf7 19. Red1 Ne4 20. Rd7+ Kg6 21. Re1 Nc5 22. Rd6+ Ne6 23. Rdxe6+ Bf6 24. R1e2 Kf5 25. R2e4 Rg8 26. g3 Kg6 27. h3 Kg5 28. h4+ Kf5 29. f4 Kg6 30. g4 Kf7 31. Rxf6+ Kxf6 32. g5+ Kf5 33. Re7 Kxf4 34. g6 hxg6 35. h5 gxh5+ 36. Kf2 Kf5 37. Rxb7 Rd8 38. Rb5+ cxb5 39. Kg3 Kg5 40. Kf3 Rd2 41. Kg3 Rxc2 42. Kh3 Rd2 43. Kg3 Rxb2 44. Kf3 Rxa2 45. Kg3 Rg2+ 46. Kf3 h4 47. Kxg2 h3+ 48. Kg3 Kf5 49. Kf2 h2 50. Kg2 h1Q+ 51. Kxh1 Kf4 52. Kg1 b4 53. Kh1 b3 54. Kg1 b2 55. Kf1 a5 56. Ke1 a4 57. Kd2 a3 58. Kc2 a2 59. Kxb2 a1B+ 60. Kxa1 Ke3 61. Ka2 Kd2 62. Ka1 Kc1 63. Ka2 Kc2 64. Ka1 Kb3 65. Kb1 1/2-1/2

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.13"]
[Round "5"]
[White "Kostov, Alex"]
[Black "Martinez, Jorge Alexander"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2059"]
[BlackElo "2200"]
[PlyCount "80"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 d5 8. exd6 Bxd6 9. d3 cxd3 10. Qxd3 Nc6 11. 0-0 Qc7 12. Nbd2 Bd7 13. Ne4 Be7 14. Rd1 Nd5 15. a3 f5 16. Ng3 0-0-0 17. c4 Nf4 18. Qe3 g5 19. Ne2 e5 20. Nc3 g4 21. Nxe5 Nxg2 22. Kxg2 Qxe5 23. Nd5 Bd6 24. Qxe5 Nxe5 25. b3 Rhf8 26. Bf4 Nf7 27. Bg3 Bxg3 28. hxg3 Ng5 29. Ne7+ Kc7 30. Nd5+ Kb8 31. Nf4 Bc6+ 32. Kf1 Rde8 33. b4 Nf3 34. Nd5 b5 35. cxb5 Bxb5+ 36. Kg2 Be2 37. Rdc1 Nd4 38. Bd1 Bf3+ 39. Bxf3 gxf3+ 40. Kf1 Nb3 0-1

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.13"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Petro, Manuel"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2059"]
[BlackElo "1633"]
[PlyCount "48"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. c3 Be7 7. Nf3 b6 8. 0-0 Bb7 9. Neg5 Bxf3 10. Qxf3 h6 11. Qh3 Nf8 12. Re1 Qd7 13. Qf3 c6 14. Qh3 N8h7 15. f4 hxg5 16. fxg5 0-0-0 17. gxf6 Nxf6 18. Ba6+ Kb8 19. Qf3 Qd5 20. Be2 Bd6 21. h3 Qxf3 22. Bxf3 Kc7 23. Bg5 Be7 24. a4 a5 1/2-1/2

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.13"]
[Round "4"]
[White "Ruge, Edison"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2264"]
[BlackElo "2059"]
[PlyCount "74"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Bc5 6. 0-0 0-0 7. d3 b5 8. Bb3 d6 9. h3 Ne7 10. Nh4 h6 11. Be3 g5 12. Bxc5 dxc5 13. Qf3 Qd6 14. Nf5 Bxf5 15. exf5 e4 16. Qd1 Nxf5 17. dxe4 Nxe4 18. Qf3 Qe5 19. c3 Nh4 20. Qh5 Qf6 21. Qg4 Rae8 22. Na3 Qc6 23. f4 Nf6 24. Qg3 Re3 25. Qf2 Rfe8 26. Bd1 Rd3 27. fxg5 hxg5 28. Nc2 Qd5 29. Nd4 Ne4 30. Qe1 Nd6 31. Qf2 cxd4 32. Bb3 Nc4 33. Rad1 Rxd1 34. Rxd1 d3 35. Qg3 d2 36. Kf1 c5 37. Qf2 Ne3+ 0-1

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.12"]
[Round "1"]
[White "Kostov, Alex"]
[Black "Meza Galvan, Luis A"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2059"]
[BlackElo "1708"]
[PlyCount "61"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 Nf6 4. exd5 exd5 5. d4 Be7 6. Bd3 Bg4 7. Bf4 a6 8. h3 Bh5 9. g4 Bg6 10. Ne5 0-0 11. Nxg6 fxg6 12. Qd2 c5 13. dxc5 Nbd7 14. Nxd5 Nxd5 15. Bc4 N7f6 16. Bd6 Bxd6 17. Bxd5+ Kh8 18. cxd6 Re8+ 19. Kf1 Qxd6 20. Rd1 Rad8 21. c4 Nxd5 22. cxd5 Re5 23. Qa5 Rxd5 24. Rxd5 Qxd5 25. Qxd5 Rxd5 26. Ke2 Kg8 27. Rc1 Rd7 28. Rc2 Kf7 29. a3 g5 30. b4 Kf6 31. Ke3 1-0

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.12"]
[Round "3"]
[White "Kostov, Alex"]
[Black "Rios Parra, Alejandro"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2059"]
[BlackElo "2355"]
[PlyCount "62"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bh5 7. g4 Bg6 8. Ne5 c6 9. Bg2 Nbd7 10. Nc4 Qc7 11. Qe2 0-0-0 12. Bg5 Nb6 13. 0-0-0 Nbd5 14. Nxd5 Nxd5 15. Qf3 f6 16. Bd2 Bf7 17. Qa3 Kb8 18. Qf3 e6 19. Rhe1 Bb4 20. a3 Bxd2+ 21. Nxd2 Nf4 22. Nb3 Rhe8 23. Bf1 b6 24. Bc4 g5 25. c3 e5 26. Bxf7 Qxf7 27. Kc2 Qd5 28. Qxd5 cxd5 29. Re3 e4 30. f3 Ng2 31. Re2 exf3 0-1

[Event "Monteria op"]
[Site "Monteria"]
[Date "2011.11.12"]
[Round "2"]
[White "Lopez Hernandez, Carlos Manuel"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2314"]
[BlackElo "2059"]
[PlyCount "69"]
[EventDate "2011.11.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. d4 d6 7. Nc3 0-0 8. d5 e5 9. Nxe5 dxe5 10. d6 Bxg2 11. dxe7 Qxe7 12. Kxg2 Rd8 13. Qa4 h6 14. Be3 c5 15. Rad1 Qb7+ 16. Nd5 Nxd5 17. cxd5 Rxd5 18. Qe4 Rd7 19. Qxb7 Rxb7 20. Rd8+ Kh7 21. Rfd1 a6 22. Re8 Raa7 23. Rxe5 Nc6 24. Re8 Rd7 25. Rxd7 Rxd7 26. Ra8 a5 27. Ra6 Rb7 28. a3 Ne5 29. Bc1 Kg6 30. f4 Nc6 31. e4 f5 32. e5 Nd4 33. Be3 Ne6 34. Kf3 Nc7 35. b3 0-1

[Event "Valledupar op 2nd"]
[Site "Valledupar"]
[Date "2011.10.02"]
[Round "5"]
[White "Garay, Edwin"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C98"]
[BlackElo "2059"]
[PlyCount "70"]
[EventDate "2011.09.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. Nf1 Nd8 14. Ng3 Be6 15. d5 Bd7 16. a4 Rb8 17. axb5 axb5 18. Bd2 Ne8 19. b4 c4 20. Be3 g6 21. Ra7 Qc8 22. Qd2 Ng7 23. Rea1 f6 24. R1a6 Nf7 25. Qc1 f5 26. Bb6 f4 27. Ne2 g5 28. Ba5 g4 29. hxg4 Bxg4 30. Kf1 Bxf3 31. gxf3 Qh3+ 32. Ke1 Bh4 33. Bb6 Rxb6 34. Rxb6 Qxf3 35. Kd1 Bxf2 0-1

[Event "Valledupar op 2nd"]
[Site "Valledupar"]
[Date "2011.10.02"]
[Round "6"]
[White "Kostov, Alex"]
[Black "Anillo Castro, Alfonso"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2059"]
[BlackElo "1843"]
[PlyCount "67"]
[EventDate "2011.09.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Nf5 Ne6 10. Re1 g6 11. Nxe7 Nxe7 12. Nc3 b5 13. Bb3 Bb7 14. Nd5 Bxd5 15. Bxd5 Nxd5 16. Qxd5 c6 17. Qd3 0-0 18. f4 Ng7 19. Be3 Qe7 20. Rad1 Nf5 21. Qxd7 Qb4 22. e6 Nxe3 23. Rxe3 Qc5 24. Rd4 Ra7 25. Qd6 Qxd6 26. Rxd6 fxe6 27. g3 Rc7 28. Rexe6 Rfc8 29. Kf2 Kf7 30. Kf3 a5 31. g4 c5 32. Re5 Rb8 33. Ke4 Re7 34. Ra6 1-0

[Event "Valledupar op 2nd"]
[Site "Valledupar"]
[Date "2011.10.01"]
[Round "3"]
[White "Chacon Cordoba, Edgardo"]
[Black "Kostov, Alex"]
[Result "1-0"]
[ECO "E16"]
[BlackElo "2059"]
[PlyCount "85"]
[EventDate "2011.09.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Qe7 7. 0-0 0-0 8. Qb3 Bxd2 9. Nbxd2 d6 10. Rae1 Nbd7 11. e4 e5 12. Qc2 c5 13. d5 Nh5 14. Nh4 g6 15. Bh3 Kh8 16. Qc3 Kg8 17. Qe3 Bc8 18. f3 a6 19. Qf2 b5 20. f4 Nb6 21. f5 Qf6 22. b3 Bd7 23. Bg4 Ng7 24. Qe3 g5 25. Ng2 a5 26. Qe2 b4 27. Ne3 Ne8 28. h4 gxh4 29. gxh4 Qxh4 30. Rf2 Kh8 31. Rh2 Qg5 32. Kh1 Nf6 33. Rg1 a4 34. Qf3 axb3 35. axb3 Ra2 36. Rhg2 Rg8 37. Qh3 Qf4 38. Rf1 Qg5 39. Bd1 Qxg2+ 40. Nxg2 Rxd2 41. Bf3 Be8 42. Qh6 Nbd7 43. Qxd2 1-0

[Event "Valledupar op 2nd"]
[Site "Valledupar"]
[Date "2011.10.01"]
[Round "2"]
[White "Kostov, Alex"]
[Black "Larrada Roa, Hassid"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2059"]
[PlyCount "93"]
[EventDate "2011.09.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Nf3 Nc6 6. c3 Bg4 7. 0-0 e6 8. Bf4 Bd6 9. Bxd6 Qxd6 10. Nbd2 Rb8 11. Re1 0-0 12. Nf1 e5 13. dxe5 Nxe5 14. Be2 Nxf3+ 15. Bxf3 Bxf3 16. Qxf3 Qc5 17. Rad1 b5 18. Ne3 Rfd8 19. Nc2 Ne4 20. Rd4 Rd6 21. Qe3 a5 22. Rxe4 Qxe3 23. R4xe3 g6 24. Re8+ Rxe8 25. Rxe8+ Kg7 26. Rb8 b4 27. Rc8 Rb6 28. cxb4 axb4 29. b3 Kf6 30. Kf1 Kf5 31. Ke2 Ke5 32. Kd3 h5 33. Re8+ Kf4 34. Ra8 h4 35. h3 Rc6 36. Nxb4 Rc1 37. Nxd5+ Kg5 38. Ne3 f5 39. Ra4 f4 40. Ng4 Kh5 41. Rc4 Ra1 42. Rc2 f3 43. Rc5+ g5 44. Rc6 Rd1+ 45. Ke3 Re1+ 46. Kxf3 Re3+ 47. Nxe3 1-0

[Event "Valledupar op 2nd"]
[Site "Valledupar"]
[Date "2011.09.30"]
[Round "1"]
[White "Serrano Florez, Carlos David"]
[Black "Kostov, Alex"]
[Result "0-1"]
[ECO "C34"]
[BlackElo "2059"]
[PlyCount "60"]
[EventDate "2011.09.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Ne7 4. d4 d5 5. Nc3 dxe4 6. Nxe4 Ng6 7. Bc4 Be7 8. 0-0 0-0 9. g3 Bh3 10. Rf2 fxg3 11. hxg3 Bg4 12. Qf1 Bxf3 13. Rxf3 Qxd4+ 14. Nf2 Ne5 15. Rf4 Qc5 16. Qe2 Nbc6 17. Be3 Qd6 18. Ne4 Qg6 19. Raf1 Kh8 20. Bb3 f5 21. Nc3 Qxg3+ 22. Kh1 Ng4 23. Bg1 Bd6 24. R4f3 Qh4+ 25. Kg2 Nh2 26. Rh3 Qg5+ 27. Kh1 Nxf1 28. Qxf1 Rf6 29. Bd5 Rh6 30. Be3 Qxe3 0-1

