[Event "Sevilla-ch U18"]
[Site "Utrera"]
[Date "2012.03.04"]
[Round "6"]
[White "Sanchez Sierra, Juan Carlos"]
[Black "Casado Gutierrez, Ruben"]
[Result "1-0"]
[ECO "A04"]
[PlyCount "16"]
[EventDate "2012.01.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. g3 e5 2. Nf3 Nc6 3. Bg2 Qf6 4. 0-0 b5 5. a4 Ba6 6. axb5 0-0-0 7. bxc6 dxc6 8. Rxa6 Be7 1-0

[Event "Sevilla-ch U18"]
[Site "Utrera"]
[Date "2012.02.26"]
[Round "5"]
[White "Ramirez Castro, Manuel Jesus"]
[Black "Sanchez Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D74"]
[PlyCount "43"]
[EventDate "2012.01.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Nf6 3. g3 Bg7 4. Bg2 0-0 5. c4 d5 6. Nbd2 Ng4 7. 0-0 Nc6 8. h3 Nh6 9. Ng5 e5 10. h4 f6 11. Bxd5+ Nf7 12. Nxf7 Rxf7 13. Bxf7+ Kxf7 14. dxe5 Bh3 15. Re1 Nxe5 16. Nf3 Nxc4 17. Qb3 Qd5 18. Rd1 Qc5 19. Be3 Qc6 20. Rac1 f5 21. Rxc4 Qa6 22. Rc6+ 1-0

[Event "Sevilla-ch U18"]
[Site "Utrera"]
[Date "2012.02.12"]
[Round "3"]
[White "Sanchez Sierra, Juan Carlos"]
[Black "Leon Casero, David"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "52"]
[EventDate "2012.01.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Bc5 3. Nf3 Nc6 4. 0-0 d6 5. d3 Bd7 6. Bg5 Qc8 7. Nc3 Bh3 8. Ne4 b6 9. Qd2 Nce7 10. Nh4 Bxg2 11. Nxg2 Nf5 12. Nh4 Nxh4 13. Bxh4 Nf6 14. Nxf6+ gxf6 15. Bxf6 Rg8 16. Qh6 Rg6 17. Qh4 Qf5 18. Be7 d5 19. Qxh7 Kxe7 20. Rad1 Rf6 21. Qg7 Bxf2+ 22. Kg2 e4 23. dxe4 dxe4 24. e3 Qf3+ 25. Kh3 Rf5 26. Rxf2 Rh5# 0-1

[Event "Sevilla-ch U18"]
[Site "Utrera"]
[Date "2012.01.29"]
[Round "1"]
[White "Barrera Garcia, Rocio"]
[Black "Sanchez Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D23"]
[PlyCount "50"]
[EventDate "2012.01.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nf3 dxc4 4. Qa4+ Bd7 5. Qxc4 b5 6. Qd3 Nc6 7. g3 Nb4 8. Qb3 Nfd5 9. Bg2 Be6 10. 0-0 Qd6 11. Bf4 Nxf4 12. Qe3 Nxg2 13. Kxg2 Nc2 14. Qe4 Bd5 15. Qxc2 c5 16. Nc3 Bc4 17. dxc5 Qh6 18. b3 Be6 19. Nxb5 Qh3+ 20. Kg1 g6 21. Nc7+ Kd7 22. Nxa8 Bg7 23. Ng5 Bf5 24. Qd2+ Ke8 25. Nxh3 Bxh3 1-0

