[Event "Cartago Region-ch 1st (Women)"]
[Site "Buga"]
[Date "2011.09.23"]
[Round "3.2"]
[White "Quintero Sanclemente, Nikol Vanessa"]
[Black "Sierra, Mayerly"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1400"]
[BlackElo "1505"]
[PlyCount "96"]
[EventDate "2011.09.22"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Ginebra"]
[BlackTeam "El Cerrito"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. Bc4 Nc6 5. a3 Bg4 6. h3 Bxf3 7. Qxf3 Nd4 8. Qd1 c6 9. d3 b5 10. Ba2 Be7 11. Be3 Ne6 12. Qd2 a6 13. 0-0-0 d5 14. Rde1 d4 15. Ne2 dxe3 16. Qxe3 0-0 17. Ng3 Ne8 18. Kb1 Bc5 19. Qf3 b4 20. Qg4 Nf6 21. Qf5 Qd6 22. Qf3 bxa3 23. Nf5 Qd7 24. Qg3 g6 25. Nh6+ Kg7 26. Ng4 Nxg4 27. Qxg4 Rab8 28. b3 Qd4 29. Kc1 Qb2+ 30. Kd2 Bb4+ 31. Ke3 Bxe1 32. Rxe1 Qxa2 33. Re2 Qb2 34. Kf3 Nd4+ 35. Ke3 Nxe2 36. Kxe2 Qxc2+ 37. Ke3 a2 38. Kf3 a1Q 39. Kg3 Qxd3+ 40. Kh4 Qad4 41. g3 Qd8+ 42. Qg5 Qxe4+ 43. g4 Qxg5+ 44. Kxg5 h6+ 45. Kh4 Qf4 46. f3 g5+ 47. Kh5 Qg3 48. b4 Qh4# 0-1

[Event "Cartago Region-ch 1st (Women)"]
[Site "Buga"]
[Date "2011.09.23"]
[Round "4.2"]
[White "Valencia, Maria Jose"]
[Black "Sierra, Mayerly"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1323"]
[BlackElo "1505"]
[PlyCount "66"]
[EventDate "2011.09.22"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Buga"]
[BlackTeam "El Cerrito"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 c5 6. Nc3 dxc4 7. 0-0 Nc6 8. Qa4 Bd7 9. Qxc4 Be7 10. Bf4 0-0 11. dxc5 e5 12. Nxe5 Nxe5 13. Bxe5 Bc6 14. Rfd1 Qa5 15. Bd6 Bxg2 16. Bxe7 Rfe8 17. Bxf6 gxf6 18. Kxg2 Qc7 19. Nd5 Qe5 20. f4 Qxb2 21. Nc7 Rxe2+ 22. Kf3 Rf2+ 23. Kg4 Rf8 24. Rab1 Qa3 25. Rd3 Qa5 26. Rxb7 h5+ 27. Kxh5 Rxh2+ 28. Kg4 Kh8 29. Kf5 Rg8 30. g4 Qe1 31. Qxf7 Qh4 32. Qxf6+ Qxf6+ 33. Kxf6 Rg7 1-0

[Event "COL-ch School U13 Girls"]
[Site "Yumbo"]
[Date "2010.04.27"]
[Round "2.1"]
[White "Sierra, Mayerly"]
[Black "Penagos, Angelica"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "41"]
[EventDate "2010.04.27"]
[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. c3 Nf6 4. d3 d6 5. Nbd2 Bg4 6. Be2 Be7 7. d4 exd4 8. Nxd4 Nxd4 9. cxd4 Bxe2 10. Qxe2 0-0 11. 0-0 Qd7 12. Nf3 d5 13. Ne5 Qd6 14. Bf4 dxe4 15. Ng6 Qd8 16. Nxf8 Bxf8 17. Be5 Nd7 18. Qxe4 Nxe5 19. dxe5 a6 20. Rad1 Qe7 21. Rfe1 1-0

[Event "COL-ch School U13 Girls"]
[Site "Yumbo"]
[Date "2010.04.27"]
[Round "4.1"]
[White "Sierra, Mayerly"]
[Black "Perez Velazco, Daniela"]
[Result "1-0"]
[ECO "C20"]
[PlyCount "7"]
[EventDate "2010.04.27"]
[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. Qh5 Nc6 3. Bc4 b5 4. Qxf7# 1-0

[Event "COL-ch School U13 Girls"]
[Site "Yumbo"]
[Date "2010.04.27"]
[Round "6.1"]
[White "Sierra, Mayerly"]
[Black "Viveros Torres, Erica Johana"]
[Result "1-0"]
[ECO "C47"]
[BlackElo "1468"]
[PlyCount "31"]
[EventDate "2010.04.27"]
[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. Nc3 Nf6 4. d3 d6 5. Bd2 Bd7 6. Be2 Be7 7. Nd5 Nxd5 8. exd5 Nd4 9. Bc3 Bf6 10. Qd2 Qe7 11. 0-0 0-0 12. Rfe1 c6 13. Nxd4 exd4 14. Bf3 dxc3 15. bxc3 Qd8 16. Rab1 1-0

[Event "Valle Region-ch U12 Girls"]
[Site "Cali"]
[Date "2010.02.28"]
[Round "7.4"]
[White "Sierra, Mayerly"]
[Black "Andrade, Luisa Fernanda1"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1444"]
[BlackElo "1431"]
[PlyCount "48"]
[EventDate "2010.02.26"]
[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 Bc5 4. c3 Nf6 5. Qe2 d6 6. 0-0 Bg4 7. h3 Bh5 8. Qd3 0-0 9. b4 Bb6 10. b5 Na5 11. Ba3 Nxc4 12. Qxc4 Bxf3 13. gxf3 d5 14. Qe2 d4 15. Bxf8 Qxf8 16. d3 Ba5 17. cxd4 exd4 18. f4 Re8 19. Nd2 h6 20. Nb3 Bc3 21. Rab1 Nd5 22. Qf3 Nb4 23. a3 Nc2 24. a4 Na3 1-0

[Event "Valle Region-ch U12 Girls"]
[Site "Cali"]
[Date "2010.02.27"]
[Round "3.3"]
[White "Campo, Hilleary Andrea"]
[Black "Sierra, Mayerly"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1290"]
[BlackElo "1444"]
[PlyCount "20"]
[EventDate "2010.02.26"]
[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. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 0-0 6. Qe2 d6 7. Qd3 Nb4 8. Qe2 Nxc2 9. Rb1 Nd4 10. Nxd4 Bxd4 0-1

[Event "Valle Region-ch U12 Girls"]
[Site "Cali"]
[Date "2010.02.27"]
[Round "5.4"]
[White "Cardoso Cardoso, Jaidy Marcela"]
[Black "Sierra, Mayerly"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1355"]
[BlackElo "1444"]
[PlyCount "19"]
[EventDate "2010.02.26"]
[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. Bb5 Qe7 4. Nc3 Nd4 5. Nxd4 exd4 6. Ne2 Qxe4 7. f3 Qh4+ 8. g3 Qh5 9. Nxd4 Qe5+ 10. Qe2 1-0

[Event "Valle Region-ch U12 Girls"]
[Site "Cali"]
[Date "2010.02.26"]
[Round "2.1"]
[White "Sierra, Mayerly"]
[Black "Mesa, Brenda Sofia"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1444"]
[BlackElo "1824"]
[PlyCount "42"]
[EventDate "2010.02.26"]
[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. c3 Nf6 4. Qe2 Bc5 5. g3 0-0 6. Bg2 d6 7. 0-0 Bg4 8. Qd3 Qd7 9. Nh4 Rad8 10. Bf3 Bh3 11. Bg2 Bxg2 12. Nxg2 d5 13. exd5 Nxd5 14. Qc4 Bb6 15. Qe2 Rfe8 16. d3 Nf6 17. Rd1 e4 18. Nf4 exd3 19. Rxd3 Rxe2 20. Rxd7 Re1+ 21. Kg2 Rxd7 0-1

[Event "Valle Region-ch U12 Girls"]
[Site "Cali"]
[Date "2010.02.26"]
[Round "1.3"]
[White "Tafur, Daniela"]
[Black "Sierra, Mayerly"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1498"]
[BlackElo "1444"]
[PlyCount "77"]
[EventDate "2010.02.26"]
[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. d4 exd4 3. Bc4 Nc6 4. Nf3 d6 5. 0-0 Bd7 6. Nxd4 Nxd4 7. Qxd4 Qe7 8. Nc3 c6 9. Re1 Nf6 10. Bf4 Ng4 11. h3 Ne5 12. Rad1 Qf6 13. Bxe5 Qxe5 14. Qxe5+ dxe5 15. Rd2 Rd8 16. Red1 Be7 17. Bxf7+ Kxf7 18. Rxd7 Rxd7 19. Rxd7 Rb8 20. Ne2 g6 21. Nc3 Ke6 22. Rd3 a6 23. g3 Rf8 24. Kf1 Bc5 25. f3 h5 26. a3 Be7 27. Ke2 g5 28. h4 gxh4 29. f4 exf4 30. gxh4 Bxh4 31. Rh3 Bg3 32. Rxh5 f3+ 33. Kf1 f2 34. Nd1 Rf4 35. Rh3 Rf3 36. Nxf2 Rxf2+ 37. Kg1 Rxc2 38. Rxg3 Rxb2 39. Rg6+ 0-1

