[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.15"]
[Round "6"]
[White "Mayorquin Polanco, Nicolas"]
[Black "Sierra, Juan Daniel"]
[Result "1-0"]
[ECO "C75"]
[PlyCount "49"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 5. c3 d6 6. 0-0 h6 7. d4 Bd7 8. Re1 g5 9. h3 Rg8 10. Nbd2 g4 11. hxg4 Rxg4 12. Nf1 Ng6 13. N1h2 Rh4 14. Nxh4 Qxh4 15. d5 Na7 16. Bxd7+ Kxd7 17. Qg4+ Qxg4 18. Nxg4 Re8 19. Nf6+ Ke7 20. Nxe8 Kxe8 21. Be3 b6 22. a4 Ke7 23. a5 Nc8 24. axb6 cxb6 25. Rxa6 1-0

[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.15"]
[Round "7"]
[White "Sierra, Juan Daniel"]
[Black "Romero Charria, Juan Pablo"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "28"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c3 b5 6. Bd2 Bb7 7. f3 Nf6 8. Bg5 Bc5 9. e5 Nc6 10. Nxc6 Bxc6 11. exf6 gxf6 12. Bh6 Qc7 13. a3 Rg8 14. b4 Ba7 1-0

[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.14"]
[Round "4"]
[White "Hurtado, Wilson David"]
[Black "Sierra, Juan Daniel"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1765"]
[PlyCount "46"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. h3 Be6 7. Bb5 Qd7 8. Nbd2 a6 9. Ba4 d5 10. Nxe5 Qd6 11. Nxc6 bxc6 12. d4 Bb6 13. e5 Qd7 14. exf6 gxf6 15. Qf3 0-0-0 16. Qxf6 Rde8 17. 0-0 Rhg8 18. Kh2 Qd6+ 19. g3 Rg6 20. Qe5 Qd7 21. Qh5 Kb7 22. Qxh7 Qd6 23. Bc2 Rg5 1-0

[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.14"]
[Round "5"]
[White "Sierra, Juan Daniel"]
[Black "Gil, Narem Stiven"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "57"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Qf3 Nh6 4. d4 Qe7 5. Bg5 f6 6. Bxh6 gxh6 7. dxe5 Qxe5 8. c3 c6 9. Ne2 b5 10. Bd3 b4 11. Qf4 Qxf4 12. Nxf4 bxc3 13. Nxc3 Ba6 14. Bxa6 Nxa6 15. a3 0-0-0 16. b4 Bd6 17. Rc1 Nc7 18. b5 cxb5 19. Nxb5 Be5 20. Nd5 Kb8 21. Nbxc7 Rc8 22. Na6+ Kb7 23. Rxc8 Kxc8 24. 0-0 Kb7 25. Nc5+ Kc6 26. Rc1 Kb5 27. Nxd7 Rc8 28. Nxe5 fxe5 29. Rxc8 1-0

[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.14"]
[Round "3"]
[White "Sierra, Juan Daniel"]
[Black "Valencia, Julian David"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "39"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Qf3 Qxf3 4. Nxf3 Bf5 5. d3 Nc6 6. Be2 Nf6 7. Bg5 h6 8. Bxf6 gxf6 9. Nc3 0-0-0 10. a3 e6 11. b4 a6 12. Rd1 Rg8 13. g3 Bd6 14. b5 axb5 15. Nxb5 Bc5 16. d4 Bb6 17. c3 Ne7 18. 0-0 c6 19. a4 cxb5 20. axb5 0-1

[Event "Valle U16"]
[Site "Jamundi"]
[Date "2009.03.13"]
[Round "1"]
[White "Dominguez, Oscar Alberto"]
[Black "Sierra, Juan Daniel"]
[Result "1-0"]
[ECO "C61"]
[WhiteElo "1720"]
[PlyCount "49"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. c3 c6 6. Ba4 d3 7. Qf3 Nf6 8. Qxd3 d5 9. exd5 Qxd5 10. Qxd5 Nxd5 11. 0-0 Be6 12. d4 f6 13. Re1 Kd7 14. Nd2 Re8 15. Bb3 g5 16. Ne4 Bg7 17. Nc5+ Kd6 18. Nxb7+ Kc7 19. Nc5 Bf7 20. Bd2 Rxe1+ 21. Rxe1 Bf8 22. Ne6+ Bxe6 23. Rxe6 Bg7 24. Bxd5 cxd5 25. Re7+ 1-0

