[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.29"]
[Round "9"]
[White "Mesa, Juan Sebastian"]
[Black "Marquez, Gabriel"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "37"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Nf3 g6 5. Bg5 Bg7 6. h3 0-0 7. Bd3 b5 8. a3 Nbd7 9. 0-0 Qc7 10. Qd2 Re8 11. Rfe1 e5 12. Rab1 exd4 13. Nxd4 Nc5 14. Qf4 Nxd3 15. cxd3 Nd7 16. Ndxb5 cxb5 17. Nxb5 Qb6 18. Nxd6 Be5 19. Qf3 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "7"]
[White "Barrero, Johan Esleider"]
[Black "Mesa, Juan Sebastian"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "41"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. Nc3 Bb4 6. Bd2 a6 7. e4 d4 8. Ne2 Bxd2+ 9. Qxd2 Bg4 10. 0-0 0-0 11. a3 h6 12. Rfe1 Nd7 13. b4 b6 14. Red1 b5 15. Ra2 Be6 16. Rda1 Nb6 17. Rc1 a5 18. bxa5 Nxa5 19. Nxe5 c5 20. Rb1 Bd7 21. f3 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.27"]
[Round "6"]
[White "Mesa, Juan Sebastian"]
[Black "Perez, Maximiliano"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "65"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 0-0 8. 0-0 d6 9. Kh1 Bd7 10. Qd2 Ng4 11. Bxg4 Bxg4 12. f3 Bd7 13. Nde2 a6 14. Bh6 b5 15. Bxg7 Kxg7 16. a3 Rc8 17. Rad1 Ne5 18. b3 a5 19. Nd4 Rc5 20. Rfe1 Qc8 21. Nce2 a4 22. Rc1 Rd8 23. Nf4 Bc6 24. Nxc6 Qxc6 25. Ne2 Rc8 26. Nd4 Qc7 27. b4 Nc4 28. Qd3 Rh5 29. g4 Rh3 30. Kg2 Ne5 31. Qxb5 Rh6 32. Qxa4 d5 33. h3 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "5"]
[White "Moran, Daniel Stiven"]
[Black "Mesa, Juan Sebastian"]
[Result "1/2-1/2"]
[ECO "D80"]
[PlyCount "64"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qc2 c6 6. h3 Bf5 7. Bd3 Bxd3 8. Qxd3 Nbd7 9. cxd5 cxd5 10. Nxd5 Nxd5 11. Nf3 Qc7 12. Bd2 0-0 13. 0-0 Rfc8 14. Rac1 Qd8 15. Qb5 N7b6 16. Ba5 Qd7 17. Qxd7 Nxd7 18. Bb4 Bf8 19. Nd2 e6 20. Bxf8 Kxf8 21. Nb3 b6 22. Nd2 Ke7 23. Kh2 f6 24. g4 Nf8 25. h4 h6 26. f3 Kd7 27. Kg3 Rxc1 28. Rxc1 Rc8 29. Nb3 Rxc1 30. Nxc1 g5 31. h5 Kc6 32. Kf2 Kb5 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "2"]
[White "Mesa, Juan Sebastian"]
[Black "Jukemura, Leandro"]
[Result "0-1"]
[ECO "B28"]
[BlackElo "1965"]
[PlyCount "54"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd2 d6 8. f3 Nc6 9. a3 Bxc3 10. Bxc3 Be6 11. Nd2 d5 12. Bd3 d4 13. Bb4 a5 14. Bc5 b6 15. Bb5 Qc7 16. Bxd4 exd4 17. Nc4 Bxc4 18. Bxc4 0-0 19. 0-0 Ne5 20. Be2 Qc5 21. Kh1 Rfd8 22. f4 Nc4 23. Bxc4 Qxc4 24. Qd3 Qxd3 25. cxd3 Ng4 26. Rfc1 Rac8 27. Kg1 Ne3 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "4"]
[White "Mesa, Juan Sebastian"]
[Black "Osorio, Diego Felipe"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "48"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bc4 Qe7 7. 0-0 c6 8. a4 Qe5 9. Qxe5+ dxe5 10. Rd1 Nf6 11. f3 Bc5+ 12. Kf1 0-0 13. Bg5 Ne8 14. c3 Nc7 15. b4 h6 16. Bh4 Be3 17. Ke2 Bf4 18. g3 Bg5 19. Bxg5 hxg5 20. Nd2 Rd8 21. Nf1 Bd7 22. Ne3 Ne8 23. a5 Nf6 24. Bb3 g4 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "3"]
[White "Peralta Chable, Oscar David"]
[Black "Mesa, Juan Sebastian"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "49"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 h6 6. Bf4 e6 7. Nf3 Nf6 8. Nbd2 Bd6 9. Ne5 Qc7 10. Ndf3 Nd7 11. Qe2 Ndxe5 12. Nxe5 Nxe5 13. Bxe5 Bxe5 14. Qxe5 Qxe5+ 15. dxe5 Bd7 16. Kd2 Ke7 17. Rhe1 Rac8 18. Re3 Rc6 19. Rg3 g6 20. Rf3 Rf8 21. Rc1 Rb6 22. b3 f5 23. exf6+ Rxf6 24. Rxf6 Kxf6 25. Re1 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.24"]
[Round "1"]
[White "Arcos Facio, Mateo"]
[Black "Mesa, Juan Sebastian"]
[Result "1-0"]
[ECO "B18"]
[PlyCount "37"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Bc4 Nf6 7. N1e2 h6 8. c3 e6 9. 0-0 Bd6 10. f4 Qc7 11. f5 Bxf5 12. Nxf5 exf5 13. Rxf5 Bxh2+ 14. Kh1 Bg3 15. Nxg3 Qxg3 16. Qe2+ Kf8 17. Bf4 Qh4+ 18. Kg1 g6 19. Bd6+ 1-0

