[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.06.03"]
[Round "7"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Naranjo Hernandez, Javier Orlando"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1330"]
[PlyCount "71"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Bd3 c5 8. Nf3 Nc6 9. Bb5 a6 10. Bxc6 bxc6 11. 0-0 Bb7 12. dxc5 Nxc5 13. b4 Nd7 14. a3 0-0 15. Ne2 c5 16. Re1 Rfc8 17. c3 cxb4 18. axb4 Bc6 19. Ned4 Bb7 20. Qc2 Rc7 21. b5 Qc5 22. bxa6 Bxa6 23. Rec1 Rcc8 24. Nb3 Qc7 25. Ng5 Nf8 26. f4 Ng6 27. h4 h6 28. Nh3 Nxh4 29. g3 Nf5 30. Nf2 Nxg3 31. Kg2 Nf5 32. Nd1 Bb7 33. Rxa8 d4+ 34. Kf1 Bxa8 35. c4 Be4 36. Qxe4 0-1

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.06.02"]
[Round "6"]
[White "Mendez Soto, Samuel Felipe"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1568"]
[BlackElo "1330"]
[PlyCount "73"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 d6 3. Nf3 Bg4 4. Be2 Nc6 5. d5 Bxf3 6. Bxf3 Nd4 7. Be3 Nxf3+ 8. Qxf3 Nf6 9. Nd2 Be7 10. Qe2 0-0 11. 0-0 c6 12. c4 Re8 13. Rad1 Bf8 14. dxc6 bxc6 15. c5 d5 16. exd5 cxd5 17. b4 Rb8 18. a3 h6 19. Qf3 d4 20. Nc4 e4 21. Qh3 Qd5 22. Rxd4 Qe6 23. Qxe6 Rxe6 24. h3 Ree8 25. Rfd1 g5 26. Nd6 Bxd6 27. Rxd6 Kg7 28. Bd4 Re6 29. Rxe6 fxe6 30. Be5 Rf8 31. Rd7+ Kg6 32. Bxf6 Rxf6 33. Rxa7 e5 34. Rd7 Kh5 35. Rd6 Rf7 36. g4+ Kh4 37. Rxh6# 1-0

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.06.02"]
[Round "5"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Quintero Rueda, Elizabeth"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1330"]
[BlackElo "1454"]
[PlyCount "39"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Bc5 5. c3 d5 6. exd5 Nxd5 7. Re1 Bg4 8. d4 Bb6 9. dxe5 0-0 10. Bxd5 Qd7 11. e6 Bxe6 12. Bxe6 Qxd1 13. Bxf7+ Rxf7 14. Rxd1 Re8 15. b4 Ne5 16. Nxe5 Bxf2+ 17. Kf1 Rxe5 18. Rd8+ Rf8 19. Rxf8+ Kxf8 20. Kxf2 1-0

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.06.01"]
[Round "4"]
[White "Contreras Acevedo, Andrea Julia"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1454"]
[BlackElo "1330"]
[PlyCount "59"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 6. 0-0 d5 7. d3 Bd6 8. Re1 0-0 9. Bg5 Bg4 10. Bxf6 Qxf6 11. exd5 cxd5 12. Nxd5 Qh6 13. Re4 Bxf3 14. Qxf3 f5 15. Ree1 e4 16. Qh3 Qxh3 17. gxh3 Rad8 18. dxe4 fxe4 19. Ne3 Be5 20. c3 Rf7 21. Rad1 Rdf8 22. Rd5 Re8 23. Nc4 Rf5 24. Rd7 g5 25. Nxe5 Rfxe5 26. Rxc7 e3 27. fxe3 Rxe3 28. Rxe3 Rxe3 29. Rc5 Rxh3 30. Rxg5+ 1-0

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.06.01"]
[Round "3"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Carreno Acevedo, Cristian Camil"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1330"]
[BlackElo "1385"]
[PlyCount "62"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nc6 4. 0-0 d6 5. c3 Bg4 6. d3 Be7 7. Bg5 0-0 8. Nbd2 Na5 9. Bb5 c6 10. Ba4 b5 11. Bc2 c5 12. b4 Nb7 13. bxc5 dxc5 14. Rb1 a6 15. c4 b4 16. a3 a5 17. h3 Bxf3 18. Nxf3 Nd7 19. Bxe7 Qxe7 20. axb4 axb4 21. Ba4 f6 22. Ra1 Rfc8 23. Bxd7 Qxd7 24. Rxa8 Rxa8 25. g4 g5 26. h4 h6 27. hxg5 hxg5 28. Qc2 Qxg4+ 29. Kh2 Qxf3 30. Rh1 Kf7 31. Kg1 Ra1+ 0-1

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.05.31"]
[Round "2"]
[White "Mendez Rivera, Anderson Heribert"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1982"]
[BlackElo "1330"]
[PlyCount "67"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Be7 6. e5 Ne4 7. Re1 Nc5 8. Nxd4 d5 9. exd6 cxd6 10. Bg5 Be6 11. Nxe6 Nxe6 12. Bxe6 fxe6 13. Rxe6 0-0 14. Bxe7 Nxe7 15. Qxd6 Qxd6 16. Rxd6 Rad8 17. Rxd8 Rxd8 18. Na3 a6 19. Kf1 b5 20. Ke1 b4 21. Nc4 Rc8 22. Ne3 Ng6 23. a3 a5 24. axb4 axb4 25. Ra4 Rb8 26. Nd5 b3 27. cxb3 Rxb3 28. Rb4 Rd3 29. Ne3 Rd8 30. Rb7 Re8 31. b4 Nf4 32. Kd2 Rd8+ 33. Kc3 Ne2+ 34. Kc4 1-0

[Event "Santander UDI Cup"]
[Site "Santander"]
[Date "2013.05.31"]
[Round "1"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Gutierrez, Juan Esteban"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1330"]
[PlyCount "32"]
[EventDate "2013.05.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 d5 6. exd5 exd4 7. dxc6 bxc6 8. cxd4 Bxd4 9. Nxd4 0-0 10. 0-0 Bg4 11. Be2 Bd7 12. Bg5 c5 13. Nb3 c6 14. Nxc5 Qc7 15. Bxf6 gxf6 16. Qxd7 Qa5 1-0

[Event "Central Region-ch U14"]
[Site "Bogota"]
[Date "2012.05.21"]
[Round "6.8"]
[White "Baron, Maria Camila"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1623"]
[BlackElo "1324"]
[PlyCount "92"]
[EventDate "2012.05.18"]
[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. c3 Nc6 3. Nf3 Nf6 4. e5 Ng4 5. d4 d6 6. Qa4 Bd7 7. exd6 Nxd4 8. Qd1 Nxf3+ 9. Qxf3 exd6 10. Bc4 Ne5 11. Qe3 Qe7 12. Nd2 Nxc4 13. Nxc4 Qxe3+ 14. Bxe3 Be7 15. Bf4 d5 16. Nd6+ Bxd6 17. Bxd6 Rd8 18. Bxc5 b6 19. Bd4 0-0 20. 0-0 Rfe8 21. a4 Re6 22. a5 bxa5 23. Rxa5 Rde8 24. Bxa7 Ra8 25. Bb6 Rxa5 26. Bxa5 Rg6 27. Rd1 Rg5 28. Bb4 h5 29. c4 Bc6 30. Bc3 dxc4 31. g3 f5 32. Rd4 Rg4 33. Rxg4 fxg4 34. Kf1 Kf7 35. Ke2 g6 36. Ke3 Ke6 37. Kf4 Be8 38. Ke4 Kd6 39. Kd4 Bf7 40. Bb4+ Kc6 41. Ke5 Kb5 42. Bc3 Kc6 43. Kd4 Kd7 44. Ke5 Kc6 45. Kd4 Kd7 46. Ke3 Ke7 1/2-1/2

[Event "Central Region-ch U14"]
[Site "Bogota"]
[Date "2012.05.21"]
[Round "7.10"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Arciniegas Castro, Santiago"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1324"]
[PlyCount "81"]
[EventDate "2012.05.18"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 Nbd7 10. 0-0-0 0-0 11. f3 Qc7 12. Nd5 Nxd5 13. exd5 Bf5 14. Bd3 Bxd3 15. Qxd3 Rac8 16. Rhe1 Qc4 17. Qxc4 Rxc4 18. Nd2 Ra4 19. Kb1 b5 20. b3 Rh4 21. Nf1 a5 22. g3 Rh3 23. f4 a4 24. fxe5 axb3 25. cxb3 Nxe5 26. Bd4 Rh5 27. g4 Rg5 28. h4 Rxg4 29. Bxe5 dxe5 30. d6 Bd8 31. Rxe5 f6 32. Rxb5 Rxh4 33. Rb8 Re4 34. Rc1 Ree8 35. Rcc8 Re1+ 36. Kb2 Rxf1 37. Rxd8 Rxd8 38. Rxd8+ Kf7 39. Rd7+ Ke6 40. Rxg7 Kxd6 41. Rxh7 1-0

[Event "Central Region-ch U14"]
[Site "Bogota"]
[Date "2012.05.20"]
[Round "4.9"]
[White "Diaz Herrera, Leider Andres"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1896"]
[BlackElo "1324"]
[PlyCount "61"]
[EventDate "2012.05.18"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 e5 7. Ndb5 a6 8. Na3 Be7 9. Be3 Be6 10. Nd5 Bxd5 11. exd5 Nb8 12. Qd2 0-0 13. Nc4 Nbd7 14. Na5 Rc8 15. c4 Qc7 16. b4 Bd8 17. Bd3 Re8 18. 0-0 e4 19. Bxe4 Nxe4 20. fxe4 Rxe4 21. Qd3 Nf6 22. Bd4 b6 23. Nc6 Be7 24. Bxf6 Bxf6 25. Rxf6 gxf6 26. Qxe4 Qd7 27. Ne7+ Kf8 28. Nf5 Re8 29. Qg4 Re5 30. Qg7+ Ke8 31. Qg8# 1-0

[Event "Central Region-ch U14"]
[Site "Bogota"]
[Date "2012.05.20"]
[Round "5.11"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Cedano, David Sebastian"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1324"]
[PlyCount "105"]
[EventDate "2012.05.18"]
[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. Bc4 Nf6 4. 0-0 Bc5 5. Re1 d6 6. h3 0-0 7. c3 Re8 8. d4 exd4 9. cxd4 Bb4 10. Bd2 Bxd2 11. Nbxd2 Nb4 12. Qb3 d5 13. exd5 Qd6 14. Rxe8+ Nxe8 15. Ne4 Qf4 16. Re1 Bf5 17. g3 Qh6 18. h4 Bxe4 19. Rxe4 Nd6 20. Re7 Nxc4 21. Qxb4 Qd6 22. Qxb7 Rd8 23. Qxc7 Qxc7 24. Rxc7 Nxb2 25. Rxa7 h6 26. Rb7 Na4 27. Rb4 Nc3 28. d6 Rxd6 29. a4 Ra6 30. Rb3 Nxa4 31. Ra3 Rf6 32. Rxa4 Rxf3 33. d5 Rd3 34. Ra5 f6 35. Kf1 Kf7 36. Ke2 Rd4 37. Ke3 Rd1 38. Ke4 Re1+ 39. Kf5 g6+ 40. Kf4 Re5 41. Ra7+ Re7 42. Rxe7+ Kxe7 43. Ke4 Kd6 44. h5 f5+ 45. Kf4 g5+ 46. Kxf5 Kxd5 47. Kg6 Ke4 48. Kxh6 g4 49. Kg5 Kf3 50. h6 Kxf2 51. Kxg4 Ke3 52. h7 Kd4 53. h8Q+ 1-0

[Event "Central Region-ch U14"]
[Site "Bogota"]
[Date "2012.05.19"]
[Round "2.11"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Sosa Florez, Luis Felipe"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1324"]
[BlackElo "1614"]
[PlyCount "30"]
[EventDate "2012.05.18"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. 0-0 Be7 9. Be3 Nbd7 10. Bg5 h6 11. Bxf6 Nxf6 12. Qd2 0-0 13. f3 Qc7 14. Kh1 b5 15. Rad1 Rfc8 0-1

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.04.02"]
[Round "9"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Carreno Acevedo, Cristian Camil"]
[Result "1-0"]
[ECO "C51"]
[WhiteElo "1331"]
[BlackElo "1475"]
[PlyCount "93"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 d6 7. 0-0 Nf6 8. Bg5 Nxe4 9. Bxe7 Qxe7 10. Re1 Nf6 11. Nbd2 0-0 12. Bb5 Bd7 13. Bxc6 Bxc6 14. dxe5 Bxf3 15. exf6 Qxf6 16. Qxf3 Qh6 17. Re2 Rfe8 18. Rxe8+ Rxe8 19. Nc4 Qe6 20. h3 Qxc4 21. Qxb7 Qxc3 22. Rb1 Kf8 23. Qxa7 Re1+ 24. Rxe1 Qxe1+ 25. Kh2 Qe5+ 26. g3 d5 27. Qc5+ Ke8 28. a4 Qd6 29. Qb5+ c6 30. Qb6 Kd7 31. a5 Qc7 32. Qc5 Qd6 33. Qd4 f6 34. a6 Kc8 35. Qg4+ Kb8 36. Qxg7 Qc7 37. Qxf6 Ka7 38. Qf4 Qxf4 39. gxf4 d4 40. Kg1 d3 41. Kf1 c5 42. f5 c4 43. Ke1 Kxa6 44. f6 Kb5 45. f7 Ka4 46. f8Q Kb3 47. Kd2 1-0

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.04.02"]
[Round "8"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Virviescas Sanchez, Gerson Steve"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1331"]
[BlackElo "1448"]
[PlyCount "122"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Nxe4 5. Re1 d5 6. Bb5 f6 7. d3 Nd6 8. Bxc6+ bxc6 9. d4 e4 10. Nc3 Be7 11. Nd2 Nf5 12. Nf1 0-0 13. Be3 Rb8 14. b3 Bb4 15. Qd2 c5 16. g4 cxd4 17. Bxd4 Nxd4 18. Qxd4 Bxc3 19. Qxc3 Bxg4 20. Ne3 Qd7 21. Nxg4 Qxg4+ 22. Kf1 Qd7 23. Rad1 f5 24. Qd4 c6 25. c4 Rfd8 26. cxd5 cxd5 27. Rd2 Rb6 28. Red1 Rd6 29. a4 g6 30. a5 Qb5+ 31. Kg2 Qxa5 32. Ra1 Qb6 33. Rxa7 Qxd4 34. Rxd4 Rb8 35. b4 Rdb6 36. Ra4 Kf7 37. Rxd5 Rxb4 38. Ra7+ R4b7 39. Rd7+ Rxd7 40. Rxd7+ Kg8 41. Kg3 g5 42. Rd5 Rb3+ 43. Kg2 Rf3 44. Rd8+ Kf7 45. Rd7+ Kg6 46. h3 h6 47. Rd6+ Kh5 48. h4 gxh4 49. Kf1 h3 50. Kg1 h2+ 51. Kxh2 Rxf2+ 52. Kg1 e3 53. Rd5 Kg4 54. Rd4+ f4 55. Rd6 Kf3 56. Rxh6 Rg2+ 57. Kf1 e2+ 58. Ke1 Rg1+ 59. Kd2 e1Q+ 60. Kd3 Qe3+ 61. Kc4 Qc1+ 0-1

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.04.01"]
[Round "7"]
[White "Aponte Martinez, Juan Camilo"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1941"]
[BlackElo "1331"]
[PlyCount "27"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bf4 Nc6 5. e3 Be7 6. Bd3 0-0 7. h3 b6 8. 0-0 Ba6 9. Nbd2 Nb4 10. Be2 c5 11. Ne5 Bd6 12. a3 Bxe5 13. dxe5 Nc6 14. exf6 1-0

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.04.01"]
[Round "6"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Joya Mesa, Andres Julian"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1331"]
[BlackElo "1419"]
[PlyCount "62"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nc6 4. Bb5 Bd7 5. Nf3 g6 6. 0-0 Bg7 7. Be3 0-0 8. h3 e5 9. dxe5 dxe5 10. Bg5 a6 11. Bxc6 Bxc6 12. Nxe5 Qxd1 13. Raxd1 Bxe4 14. Bxf6 Bxf6 15. Nd7 Bxc3 16. Nxf8 Kxf8 17. bxc3 b5 18. Rd7 c5 19. Rfd1 Kg7 20. Rd8 Rxd8 21. Rxd8 a5 22. Rc8 c4 23. Rc5 Bxc2 24. Rxb5 f5 25. Rxa5 g5 26. Rc5 Bd3 27. a4 Kf6 28. f3 h5 29. Kf2 f4 30. a5 Bf5 31. Rxf5+ Kxf5 1-0

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.03.31"]
[Round "5"]
[White "Duarte Meneses, Ferney Fabian"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "0-1"]
[ECO "D30"]
[BlackElo "1331"]
[PlyCount "100"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. c5 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 Bd7 7. Nc3 b6 8. Na4 b5 9. Nc3 b4 10. Na4 Nc6 11. b3 Ne4 12. Bd3 Bf6 13. 0-0 Ne7 14. Bxe4 dxe4 15. Ne5 Bxe5 16. Bxe5 Ng6 17. Qg4 Nxe5 18. dxe5 f6 19. Qxe4 fxe5 20. Rfd1 Qf6 21. f3 Bxa4 22. bxa4 Rab8 23. Rab1 Qf5 24. Rxb4 Qxe4 25. Rxe4 Rb2 26. Rxe5 Rxa2 27. Rd4 Ra1+ 28. Kf2 Rf6 29. f4 h6 30. h4 Rg6 31. Kf3 Rf1+ 32. Ke4 Rxg2 33. Rxe6 Rh1 34. Kf3 Rgh2 35. Ra6 Rh3+ 36. Ke4 Rxh4 37. Rxa7 Rg4 38. Rd8+ Kh7 39. Rxc7 h5 40. a5 Ra1 41. a6 Rxa6 42. Rdd7 h4 43. Kf5 Rag6 44. Rd6 h3 45. Rxg6 Rxg6 46. Ra7 h2 47. Ra1 Rg1 48. c6 Rxa1 49. Ke6 h1Q 50. c7 Qc6+ 0-1

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.03.31"]
[Round "4"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Quiroz Silva, Santiago"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1331"]
[BlackElo "1456"]
[PlyCount "118"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. 0-0 Nc6 9. Bg5 Be7 10. Bxf6 Bxf6 11. Qe1 Nb4 12. Rd1 Bg5 13. Na1 f5 14. exf5 Bxf5 15. Ne4 Nxc2 16. Nxc2 Bxe4 17. Bh5+ Bg6 18. Bxg6+ hxg6 19. f4 Bf6 20. fxe5 Bxe5 21. Nd4 Qb6 22. Rf2 Kd7 23. Rf7+ Kd8 24. Kf1 Rxh2 25. Ne6+ Ke8 26. Rf8+ Ke7 27. Qf2 Rh1+ 28. Ke2 Qxf2+ 29. Rxf2 Rxd1 30. Kxd1 Kxe6 31. Re2 Rf8 32. Kd2 Kd5 33. b3 Kd4 34. Kc2 Rc8+ 35. Kd2 Bf4+ 36. Ke1 Bg3+ 37. Kd1 Rc3 38. Rd2+ Rd3 39. Rxd3+ Kxd3 40. Kc1 g5 41. Kb2 Be5+ 42. Ka3 Bc3 43. b4 a5 44. b5 Bb4+ 45. Ka4 b6 46. a3 Be1 47. Kb3 g4 48. Ka4 Ke2 49. Kb3 Kf2 50. Kc4 Kxg2 51. Kd5 Kf3 52. Kc6 Bf2 53. Kxd6 g3 54. Kc6 g2 55. Kb7 g1Q 56. Ka6 Qg4 57. a4 Bg3 58. Kxb6 Qe6+ 59. Kxa5 Be1# 0-1

[Event "Santander UDI University op U27"]
[Site "Santander"]
[Date "2012.03.30"]
[Round "2"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Becerra, Dianny Katerine"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1331"]
[PlyCount "79"]
[EventDate "2012.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bb4 4. c3 Be7 5. d4 Nf6 6. 0-0 0-0 7. Nxe5 d6 8. Nxc6 bxc6 9. e5 Ne4 10. Bd3 Nf6 11. exf6 Bxf6 12. Re1 a5 13. Qc2 Rb8 14. Bxh7+ Kh8 15. Bf4 Rb5 16. Nd2 Rh5 17. Bd3 Rh4 18. Bg3 Rh5 19. Be2 Rh6 20. Bf3 c5 21. dxc5 Ba6 22. cxd6 cxd6 23. Rad1 Bb5 24. Ne4 Be7 25. Bf4 Rh4 26. g3 Rh7 27. Nxd6 Bd7 28. Bg4 Bxg4 29. Nxf7+ Kg8 30. Nxd8 Bxd8 31. Rd3 Bf6 32. f3 Bh5 33. g4 Bf7 34. Rde3 Bxa2 35. Re8 Bf7 36. Rxf8+ Kxf8 37. Qxh7 a4 38. Bd6+ Be7 39. Rxe7 a3 40. Re1# 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.22"]
[Round "8"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Berbesi, Sarai"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1381"]
[BlackElo "1448"]
[PlyCount "64"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 Na5 9. e5 Ne4 10. Qe2 Nxd2 11. Nxd2 d5 12. Bb5+ Bd7 13. Bxd7+ Qxd7 14. 0-0 0-0 15. Rfe1 Rfe8 16. Nf3 Re7 17. Qd2 Nc6 18. Rac1 Re6 19. Ng5 Rg6 20. Re2 Qg4 21. Rc3 Qxg5 22. Qxg5 Rxg5 23. Ree3 Rc8 24. Rb3 b6 25. Rb5 Rd8 26. Rc3 Nxd4 27. Rxd5 Rxd5 28. Rxc7 h6 29. Kf1 Rgxe5 30. Rxa7 Nc6 31. Ra8+ Kh7 32. Rf8 Rd1# 0-1

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.22"]
[Round "9"]
[White "Suarez Pinto, Sergio Rafael"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1740"]
[BlackElo "1381"]
[PlyCount "135"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d3 Nc6 12. Nbd2 Bd7 13. Nf1 Re8 14. Ng3 h6 15. Nh2 Bf8 16. Bd2 Ne7 17. f4 exf4 18. Bxf4 Ng6 19. Bd2 Nh7 20. Rf1 Be7 21. Nf5 Bxf5 22. Rxf5 Rf8 23. Bb3 Qc8 24. Qf1 c4 25. dxc4 bxc4 26. Bxc4 Ne5 27. Bb3 Ng5 28. Bd5 Qc5+ 29. Kh1 Rab8 30. b3 Rbe8 31. Qxa6 Bf6 32. Qe2 Ng6 33. Bxf7+ Nxf7 34. Rxc5 dxc5 35. Rf1 Nd6 36. Qg4 Nxe4 37. Qxg6 Nxd2 38. Rd1 Bxc3 39. Ng4 Kh8 40. Qh5 Ne4 41. Qh4 Bf6 42. Nxf6 Rxf6 43. Kg1 Rf2 44. Re1 Ref8 45. Qxe4 Rxa2 46. Rc1 Rb2 47. Qd5 Rbf2 48. Qxc5 R8f5 49. Qxf2 Rxf2 50. Kxf2 Kh7 51. Ke3 g5 52. g4 Kg7 53. Ke4 Kf6 54. Rc6+ Ke7 55. Ke5 Kd7 56. Rxh6 Kc7 57. Kd5 Kb7 58. Kc5 Ka7 59. Kb5 Kb7 60. Rh7+ Kc8 61. Kc6 Kd8 62. Ra7 Ke8 63. Kd6 Kf8 64. Ke6 Kg8 65. Kf6 Kh8 66. Ra8+ Kh7 67. Rf8 Kh6 68. Rh8# 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.21"]
[Round "7"]
[White "Estevez Ramirez, Gloria Marcela"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "1520"]
[BlackElo "1381"]
[PlyCount "29"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d3 Bd7 12. Nbd2 Nc6 13. Nf1 Re8 14. Ng3 Rc8 15. Bg5 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.21"]
[Round "6"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Ramirez Reyes, Jaime Orlando"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1381"]
[BlackElo "1549"]
[PlyCount "141"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 a6 5. Nc3 Bg4 6. Be2 e6 7. h3 Bxf3 8. Bxf3 h6 9. Be3 Bb4 10. 0-0 Bxc3 11. bxc3 Nf6 12. c4 0-0 13. cxd5 exd5 14. Rb1 Qc7 15. Qd2 Nbd7 16. Bf4 Qc6 17. Rfe1 Rfe8 18. Rxe8+ Rxe8 19. Qc1 b5 20. Rb3 Ne4 21. Re3 Ndf6 22. Be5 Rc8 23. Bxf6 Nxf6 24. Re7 Qxc2 25. Qxc2 Rxc2 26. Ra7 Rxa2 27. Ra8+ Kh7 28. Ra7 Kg6 29. g4 a5 30. h4 Ne4 31. Bxe4+ dxe4 32. Ra6+ Kh7 33. h5 g6 34. hxg6+ fxg6 35. Ra7+ Kg8 36. d5 b4 37. d6 b3 38. d7 Rd2 39. Ra8+ Kf7 40. d8Q Rxd8 41. Rxd8 b2 42. Rb8 b1Q+ 43. Rxb1 Kf6 44. Ra1 Kg5 45. Rxa5+ Kxg4 46. Kg2 Kf4 47. Ra4 Ke5 48. f3 exf3+ 49. Kxf3 h5 50. Rh4 Kf5 51. Rf4+ Kg5 52. Kg3 Kh6 53. Re4 Kg5 54. Re8 Kh6 55. Kf4 g5+ 56. Kf5 g4 57. Kf6 Kh7 58. Rf8 g3 59. Rf7+ Kh6 60. Rg7 h4 61. Rg8 Kh7 62. Rg6 g2 63. Rxg2 Kh6 64. Kf5 h3 65. Rh2 Kg7 66. Rxh3 Kf7 67. Rh7+ Kg8 68. Ra7 Kf8 69. Ke6 Kg8 70. Kf6 Kh8 71. Kg6 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.20"]
[Round "5"]
[White "Acosta Cruz, Luis Ivan"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C51"]
[WhiteElo "1854"]
[BlackElo "1381"]
[PlyCount "83"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. 0-0 Nf6 7. d4 exd4 8. cxd4 Be7 9. e5 0-0 10. exf6 Bxf6 11. Nc3 d6 12. Rb1 Bd7 13. Nd5 Bf5 14. Rxb7 Na5 15. Nxf6+ gxf6 16. Rb4 c5 17. dxc5 dxc5 18. Qxd8 Raxd8 19. Ra4 Nxc4 20. Rxc4 Bd3 21. Rg4+ Kh8 22. Re1 Rfe8 23. Rxe8+ Rxe8 24. Bb2 Re6 25. h4 h5 26. Rf4 Kg8 27. Bc3 Re2 28. Rxf6 Rc2 29. Be5 Rc1+ 30. Kh2 Rc2 31. Kg3 Rxa2 32. Ng5 Re2 33. Nxf7 Rxe5 34. Nxe5 Kg7 35. Rf7+ Kg8 36. Rxa7 Be4 37. f3 Bd5 38. Kf4 c4 39. Rc7 Kf8 40. Kg5 Be6 41. Kf6 Bg8 42. Rc8# 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.20"]
[Round "4"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Navas, Gildardo"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1381"]
[BlackElo "1557"]
[PlyCount "64"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb6 7. e5 Ng8 8. Ng5 Nxd4 9. Nxf7 Qe7 10. 0-0 d6 11. Re1 Be6 12. Bxe6 Nxe6 13. Nxh8 0-0-0 14. exd6 Rxd6 15. Qg4 Qf6 16. Qe2 Kb8 17. Be3 Ne7 18. Bxb6 Rxb6 19. Nc3 Qf8 20. Na4 Rc6 21. Rac1 Rxc1 22. Rxc1 Nd4 23. Qe5 Nec6 24. Qe4 Qxh8 25. Re1 a6 26. Nc5 g6 27. Nd7+ Ka7 28. Qf4 Qd8 29. Qf7 Nb4 30. Re8 Qg5 31. Qf8 Qc1+ 32. Re1 Qxe1# 0-1

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.19"]
[Round "3"]
[White "Martinez, Juan Cristobal"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1867"]
[BlackElo "1381"]
[PlyCount "71"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bg5 g6 4. e3 a6 5. c4 dxc4 6. Bxc4 Bg7 7. Nc3 Bg4 8. Qb3 Be6 9. Bxe6 fxe6 10. Qxe6 Bf6 11. Ne4 Bxg5 12. Nfxg5 Nh6 13. Nf6+ Kf8 14. Ng4 Qd6 15. Qxd6 cxd6 16. Nxh6 Nb4 17. 0-0 Kg7 18. Ngf7 Rhf8 19. a3 Nd3 20. Rab1 Rac8 21. Rfd1 Nxf2 22. Kxf2 Rc2+ 23. Kg3 Re2 24. Re1 Rxe1 25. Rxe1 Rc8 26. Re2 Rc1 27. Kf2 Rh1 28. h3 Ra1 29. Rc2 Ra2 30. g4 g5 31. Kg3 Ra1 32. h4 gxh4+ 33. Kxh4 Rh1+ 34. Kg5 Rf1 35. Rc8 Rxf7 36. Rg8# 1-0

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.19"]
[Round "2"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Villamizar Pereira, Andrea Camil"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1381"]
[BlackElo "1611"]
[PlyCount "51"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[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. d4 cxd4 4. Nxd4 a6 5. Be3 Nf6 6. Nc3 Qc7 7. Qd2 Bb4 8. Nde2 Nxe4 9. Qd4 Bxc3+ 10. Nxc3 Nf6 11. Bg5 Nc6 12. Qc4 d5 13. Qh4 Nd7 14. Be2 f6 15. Bh5+ Kd8 16. 0-0-0 Qa5 17. Rhe1 d4 18. Rxe6 fxg5 19. Qe4 Nf6 20. Rd6+ Kc7 21. Rxc6+ bxc6 22. Qxd4 Nxh5 23. Qd6+ Kb7 24. Qe7+ Qc7 25. Qb4+ Ka7 26. Qc5+ 0-1

[Event "Bucaramanga Santander"]
[Site "Bucaramanga"]
[Date "2012.01.18"]
[Round "1"]
[White "Rico Hernandez, Edgar"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1897"]
[BlackElo "1381"]
[PlyCount "41"]
[EventDate "2012.01.18"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. e3 Nf6 4. Nc3 e6 5. Nf3 dxc4 6. Bxc4 Na5 7. Bd3 Bd6 8. 0-0 0-0 9. Qc2 g6 10. e4 Be7 11. e5 Ng4 12. h3 Nxe5 13. dxe5 Bd7 14. Bh6 Re8 15. Rfd1 Bf8 16. Bxf8 Rxf8 17. Ne4 Kg7 18. Nf6 Qe7 19. Qxc7 Qd8 20. Qxd7 Qxd7 21. Nxd7 1-0

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.22"]
[Round "9"]
[White "Quintero Rueda, Elizabeth"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1492"]
[BlackElo "1265"]
[PlyCount "68"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bc4 Bc5 4. 0-0 Nf6 5. Nc3 0-0 6. d3 h6 7. Re1 d6 8. h3 Re8 9. Be3 Bxe3 10. Rxe3 Nd4 11. Nb5 Nxb5 12. Bxb5 Bd7 13. Bc4 Be6 14. Bxe6 Rxe6 15. c3 Qd7 16. Qe2 Rae8 17. Rd1 d5 18. Nh4 d4 19. Rg3 Rd6 20. c4 g5 21. Nf5 Kh7 22. Nxd6 Qxd6 23. Qf3 Qe6 24. b4 Rg8 25. Qf5+ Qxf5 26. exf5 e4 27. dxe4 Nxe4 28. Rgd3 g4 29. hxg4 Rxg4 30. Rxd4 Nc3 31. Rxg4 Nxd1 32. Rd4 Nc3 33. a3 Ne2+ 34. Kf1 Nxd4 0-1

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.22"]
[Round "8"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Salazar Arias, Martin"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1265"]
[BlackElo "1564"]
[PlyCount "72"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. c3 Nf6 7. f3 0-0 8. Na3 a6 9. Qd2 d5 10. Bg5 dxe4 11. Bxf6 Bxf6 12. fxe4 Nxd4 13. cxd4 Qxd4 14. Qxd4 Bxd4 15. Nc4 b5 16. Rd1 Bg7 17. Nb6 Rb8 18. Nd5 e6 19. Ne7+ Kh8 20. Nc6 Rb6 21. Nd8 Bf6 22. Nxf7+ Rxf7 23. e5 Be7 24. Rc1 Bb7 25. a3 Rc6 26. Rxc6 Bxc6 27. Rg1 Bc5 28. Rh1 Bd4 29. b4 Rf2 30. Rg1 Bd5 31. g4 Rxh2 32. Rg3 Bf2+ 33. Ke2 Bxg3+ 34. Ke3 Bf2+ 35. Kf4 h6 36. g5 Rh4# 0-1

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.21"]
[Round "7"]
[White "Contreras Acevedo, Andrea Julia"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1611"]
[BlackElo "1265"]
[PlyCount "64"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bxc6 dxc6 5. Nxe5 Qe7 6. d4 Nf6 7. Qd3 c5 8. c3 cxd4 9. cxd4 c5 10. d5 Qxe5 11. 0-0 Qxe4 12. Qc3 Nxd5 13. Re1 Nxc3 14. Rxe4+ Nxe4 15. Be3 Be7 16. Na3 0-0 17. Re1 Rd8 18. Bf4 Bf5 19. f3 Bh4 20. g3 Bf6 21. fxe4 Bd4+ 22. Kh1 Bg4 23. Kg2 Bxb2 24. Nc4 Bc3 25. Rc1 Rd3 26. Bc7 Bf3+ 27. Kh3 Bxe4 28. Nb6 Bf5+ 29. Kg2 Rd2+ 30. Kf1 Bh3+ 31. Ke1 Re8+ 32. Be5 Rxe5# 0-1

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.19"]
[Round "5"]
[White "Estevez Ramirez, Gloria Marcela"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "0-1"]
[ECO "C96"]
[WhiteElo "1600"]
[BlackElo "1265"]
[PlyCount "64"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[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 0-0 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d3 Bd7 12. Nbd2 Rc8 13. Nf1 c4 14. b3 cxb3 15. axb3 Rxc3 16. b4 Nc6 17. Rxa6 Nxb4 18. Ra3 Rxc2 19. Be3 Qc7 20. Ng3 Na2 21. Ng5 Nc3 22. Qxc2 Rc8 23. Qb3 d5 24. exd5 Ncxd5 25. Bd2 Bxa3 26. Qxa3 h6 27. Nf3 Nf4 28. Bc1 Qc2 29. Nxe5 Re8 30. d4 Bxh3 31. Bxf4 Ng4 32. Nd7 Rxe1+ 0-1

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.18"]
[Round "3"]
[White "Morales Guerrero, Alfonso Javier"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "2091"]
[BlackElo "1265"]
[PlyCount "31"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 c6 3. Nc3 Nf6 4. Nf3 Bd6 5. Ne2 b5 6. Bb3 a5 7. d4 Bb4+ 8. c3 Be7 9. Nxe5 d5 10. exd5 cxd5 11. a4 b4 12. 0-0 Bd6 13. Bg5 0-0 14. Bxd5 h6 15. Bxf6 Qxf6 16. Bxa8 1-0

[Event "Santander op"]
[Site "Santander"]
[Date "2011.12.18"]
[Round "4"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Rincon R, Javier Duvan"]
[Result "0-1"]
[ECO "B54"]
[WhiteElo "1265"]
[BlackElo "1578"]
[PlyCount "56"]
[EventDate "2011.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 146 Extra"]
[Source "ChessBase"]
[SourceDate "2012.02.29"]
[SourceVersion "1"]
[SourceVersionDate "2012.02.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Nf5 Bxf5 6. exf5 a6 7. Nc3 Qc7 8. Be3 Nf6 9. Qd2 Nbd7 10. Be2 Be7 11. 0-0-0 0-0 12. f3 Rac8 13. Kb1 b5 14. g4 Nc5 15. h4 d5 16. b3 Rfd8 17. Rhg1 d4 18. Bg5 dxc3 19. Qc1 Rxd1 20. Rxd1 Rd8 21. Rxd8+ Bxd8 22. Bxf6 gxf6 23. g5 fxg5 24. hxg5 f6 25. gxf6 Bxf6 26. Qa3 a5 27. Bxb5 Qd6 28. Qxa5 Qd1# 0-1

[Event "Bucaramanga UDI-ch"]
[Site "Bucaramanga"]
[Date "2011.04.15"]
[Round "2.31"]
[White "Alvarez, Javier Alejandro"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C87"]
[PlyCount "42"]
[EventDate "2011.04.15"]
[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 0-0 7. c3 d6 8. d4 exd4 9. cxd4 Bg4 10. h3 Bh5 11. d5 b5 12. Bb3 Na5 13. Nbd2 Qd7 14. a4 b4 15. Bc4 Rab8 16. Be2 b3 17. Nd4 Rb7 18. N4xb3 Nxb3 19. Nxb3 Rfb8 20. Ra3 Nxe4 21. Bxh5 Rb4 1-0

[Event "Bucaramanga UDI-ch"]
[Site "Bucaramanga"]
[Date "2011.04.15"]
[Round "5.29"]
[White "Carreno Acevedo, Cristian Camil"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "47"]
[EventDate "2011.04.15"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qd4 4. Nf3 Qd8 5. d4 Bg4 6. Be2 e6 7. 0-0 Bd6 8. h3 Bh5 9. a3 Nf6 10. d5 e5 11. Re1 e4 12. Bb5+ c6 13. dxc6 bxc6 14. Ba4 e3 15. Rxe3+ Kd7 16. Ne5+ Kc7 17. Qd2 Re8 18. Nf3 Rxe3 19. Qxe3 Nd5 20. Nxd5+ cxd5 21. Qc3+ Kb6 22. Be3+ Ka6 23. Qd3+ Ka5 24. Qb5# 1-0

[Event "Bucaramanga UDI-ch"]
[Site "Bucaramanga"]
[Date "2011.04.15"]
[Round "7.32"]
[White "Fernandez Mendoza, Daniela"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C20"]
[PlyCount "15"]
[EventDate "2011.04.15"]
[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. Bb5 Bc5 3. Nf3 Nf6 4. 0-0 0-0 5. d3 d6 6. a3 a6 7. Ba4 b5 8. Bb3 1-0

[Event "Bucaramanga UDI-ch"]
[Site "Bucaramanga"]
[Date "2011.04.15"]
[Round "8.32"]
[White "Pelaez Martinez, Blanca Ines"]
[Black "Sanchez Vega, Sergio Antonio"]
[Result "1-0"]
[ECO "C70"]
[PlyCount "10"]
[EventDate "2011.04.15"]
[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 Be7 5. Nc3 Nf6 1-0

[Event "Bucaramanga UDI-ch"]
[Site "Bucaramanga"]
[Date "2011.04.15"]
[Round "3.33"]
[White "Sanchez Vega, Sergio Antonio"]
[Black "Ramirez, Orlando"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "18"]
[EventDate "2011.04.15"]
[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 d5 2. e5 Bf5 3. Nf3 e6 4. Bb5+ c6 5. Be2 Nd7 6. 0-0 Ne7 7. d3 a6 8. Bf4 c5 9. c3 c4 0-1

