[Event "Bogota op 02"]
[White "Bernal Posada, Diego"]
[Black "Vallejo Roman, Alberto"]
[Site "Bogota"]
[Round "6"]
[Result "0-1"]
[Date "2012.02.26"]
[ECO "B06"]
[WhiteElo "1593"]
[BlackElo "1600"]
[PlyCount "56"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Nf3 Bg7 4. Bc4 Nf6 5. Ng5 0-0 6. Nc3 c6 7. d5 b5 8. Bd3 b4 9. Ne2 c5 10. b3 h6 11. Nf3 Nxe4 12. Bxe4 Bxa1 13. Bxh6 Bg7 14. Bxg7 Kxg7 15. Ng5 Nd7 16. Nf4 Nf6 17. Qa1 Kh6 18. h4 Nxe4 19. Qc1 Nxg5 20. hxg5+ Kg7 21. Qe3 Rh8 22. Rf1 a5 23. Qc1 a4 24. Qb2+ Kg8 25. Kd1 a3 26. Qc1 Qf8 27. Qe3 Bd7 28. Re1 Re8 0-1

[Event "Bogota op 02"]
[White "Corpus Vanegas, Jair Samir"]
[Black "Vallejo Roman, Alberto"]
[Site "Bogota"]
[Round "7"]
[Result "1-0"]
[Date "2012.02.26"]
[ECO "B08"]
[WhiteElo "1679"]
[BlackElo "1600"]
[PlyCount "49"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Bc4 Bg7 4. Nf3 Nf6 5. Nc3 Bg4 6. e5 dxe5 7. Bxf7+ Kf8 8. Bb3 exd4 9. Qxd4 Nc6 10. Qc4 e6 11. Ng5 Qe7 12. f3 Na5 13. Qe2 Nxb3 14. axb3 Bf5 15. g4 Nxg4 16. fxg4 h6 17. Nh3 Re8 18. gxf5 Qh4+ 19. Nf2 exf5 20. Be3 Bd4 21. Ncd1 Bxe3 22. Nxe3 f4 23. 0-0-0 Rxe3 24. Qg4 Qxg4 25. Nxg4 1-0

[Event "Bogota op 02"]
[White "Morales Rivera, Luis Eduardo"]
[Black "Vallejo Roman, Alberto"]
[Site "Bogota"]
[Round "4"]
[Result "0-1"]
[Date "2012.02.25"]
[ECO "B06"]
[WhiteElo "1945"]
[BlackElo "1600"]
[PlyCount "86"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 g6 3. f4 Bg7 4. Nf3 d6 5. Bd3 Bd7 6. Be3 Nh6 7. h3 Nc6 8. a3 Qe7 9. Qd2 0-0-0 10. f5 Ng8 11. fxe6 fxe6 12. Nc3 h6 13. b4 e5 14. Nd5 Qe8 15. c3 Nce7 16. c4 c6 17. Nc3 exd4 18. Nxd4 g5 19. b5 c5 20. Nf3 Ng6 21. 0-0-0 Ne5 22. Be2 Nxf3 23. Bxf3 Qe5 24. Kc2 Ne7 25. Na4 Be6 26. Qd3 Ng6 27. Bd2 Nf4 28. Qf1 Qf6 29. Bc3 Qf7 30. Bxg7 Bxc4 31. Bxh8 Bxf1 32. Rhxf1 Rxh8 33. Nc3 Kc7 34. g3 Ne6 35. Kb2 Qg7 36. Bg4 Nd4 37. a4 Rf8 38. Bf5 Ne2 39. Rd3 Nxc3 40. Rxc3 Qd4 41. Rff3 Qxa4 42. Rb3 Qd4+ 43. Ka3 Qa1# 0-1

[Event "Bogota op 02"]
[White "Vallejo Roman, Alberto"]
[Black "Blanco, Juan Sebastian"]
[Site "Bogota"]
[Round "5"]
[Result "0-1"]
[Date "2012.02.25"]
[ECO "C23"]
[WhiteElo "1600"]
[BlackElo "1634"]
[PlyCount "41"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Bxf7+ Kxf7 4. Qh5+ Kf8 5. Qxe5 d6 6. Qg3 Nf6 7. c3 Nc6 8. d3 Kf7 9. Bg5 h6 10. Bd2 Rf8 11. d4 Bb6 12. f3 Kg8 13. Na3 Nh5 14. Qf2 d5 15. exd5 Qxd5 16. Ne2 Bd7 17. 0-0 Rae8 18. Kh1 Ne5 19. Qh4 Nxf3 20. Rxf3 Rxf3 21. Ng1 0-1

[Event "Bogota op 02"]
[White "Vallejo Roman, Alberto"]
[Black "Estrella Becerra, Fernando"]
[Site "Bogota"]
[Round "3"]
[Result "0-1"]
[Date "2012.02.25"]
[ECO "B23"]
[WhiteElo "1600"]
[BlackElo "2071"]
[PlyCount "116"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. Nc3 g6 4. d3 Bg7 5. f4 c5 6. Nf3 Nc6 7. a3 0-0 8. 0-0 Bg4 9. Be3 a6 10. Qe1 b5 11. Ba2 Rc8 12. Qh4 Bxf3 13. Rxf3 Nd4 14. Rf2 Qd7 15. h3 h6 16. Raf1 e6 17. Bb1 d5 18. Bxd4 cxd4 19. e5 Nh7 20. Ne2 g5 21. Qh5 f6 22. fxg5 fxg5 23. Nxd4 Rxf2 24. Rxf2 Qe8 25. Qxe8+ Rxe8 26. Nf3 Nf8 27. d4 Ng6 28. g3 Rf8 29. c3 Ne7 30. Nd2 Nc8 31. Rxf8+ Bxf8 32. Nb3 Kf7 33. Kf2 Nb6 34. Nc1 Nc4 35. Nd3 a5 36. Ke2 h5 37. Ba2 Nb6 38. Bb3 a4 39. Ba2 Be7 40. Kf3 Ke8 41. Ne1 Kf7 42. Ng2 Kg7 43. h4 Kf7 44. Ke3 Nc4+ 45. Bxc4 bxc4 46. Kf3 Kg6 47. g4 hxg4+ 48. Kxg4 gxh4 49. Nf4+ Kf7 50. Kh5 Bd8 51. Kg4 Be7 52. Ng2 h3 53. Kxh3 Bg5 54. Kg3 Bc1 55. Nf4 Bxb2 56. Ne2 Bxa3 57. Kf2 Bb2 58. Ke1 a3 0-1

[Event "Bogota op 02"]
[White "Cortes, Maria Angelica"]
[Black "Vallejo Roman, Alberto"]
[Site "Bogota"]
[Round "2"]
[Result "0-1"]
[Date "2012.02.24"]
[ECO "B08"]
[WhiteElo "1988"]
[BlackElo "1600"]
[PlyCount "32"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Nf3 Bg4 5. Be2 Nf6 6. h3 Bd7 7. Be3 Nc6 8. Qd2 h6 9. d5 Ne5 10. Nxe5 dxe5 11. f3 a6 12. a3 Rc8 13. Rd1 Nh5 14. Bf2 Nf4 15. 0-0 a5 16. Bg3 Bxh3 0-1

[Event "Bogota op 02"]
[White "Vallejo Roman, Alberto"]
[Black "Zamora, Lidia"]
[Site "Bogota"]
[Round "1"]
[Result "1/2-1/2"]
[Date "2012.02.23"]
[ECO "C24"]
[WhiteElo "1600"]
[BlackElo "2007"]
[PlyCount "105"]
[EventDate "2012.02.23"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 d5 4. exd5 Nxd5 5. Ne2 Nc6 6. 0-0 Bc5 7. Nbc3 Be6 8. a3 a5 9. Bd2 0-0 10. Qe1 Re8 11. Ng3 f6 12. Nce4 Bb6 13. Be3 Nxe3 14. Bxe6+ Rxe6 15. fxe3 Ne7 16. Rf3 Qd7 17. Nh5 f5 18. Qg3 Ng6 19. Rxf5 Qe7 20. Raf1 Rd8 21. Ng5 Nf4 22. Nxf4 exf4 23. Qg4 Bxe3+ 24. Kh1 Rg6 25. Qh5 Rh6 26. Qf7+ Qxf7 27. Nxf7 Rdd6 28. Nxh6+ Rxh6 29. Rxa5 Rc6 30. c3 h6 31. h3 Rb6 32. Rb1 Kf7 33. Ra4 Rd6 34. d4 Kf6 35. Ra5 g5 36. Rf1 Kg6 37. Rb5 b6 38. Kh2 h5 39. g3 c5 40. gxf4 gxf4 41. Kg2 Kf5 42. Kf3 Rg6 43. Rh1 Rg3+ 44. Ke2 Ke4 45. Rxb6 Rg2+ 46. Ke1 cxd4 47. cxd4 Rc2 48. Rf1 f3 49. Re6+ Kd3 50. Rxe3+ Kxe3 51. Kd1 Rxb2 52. Re1+ Kxd4 53. Re8 1/2-1/2

