[Event "Boyaca Region-ch qual"]
[Site "Duitama"]
[Date "2010.05.17"]
[Round "6.1"]
[White "Otalora Pacheco, Carlos Eduardo"]
[Black "Sierra, Edwin Andres"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2072"]
[BlackElo "2136"]
[PlyCount "30"]
[EventDate "2010.05.15"]
[EventType "swiss"]
[EventRounds "6"]
[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. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 g6 9. f3 Bg7 10. Be3 0-0 11. 0-0 Rac8 12. b3 Rfd8 13. Qd2 e6 14. Rfd1 d5 15. exd5 exd5 1/2-1/2

[Event "Boyaca Region-ch qual"]
[Site "Duitama"]
[Date "2010.05.16"]
[Round "3.6"]
[White "Ruge Parada, Andres Felipe"]
[Black "Sierra, Edwin Andres"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1517"]
[BlackElo "2136"]
[PlyCount "92"]
[EventDate "2010.05.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nc6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 7. Bxe4 Bd6 8. d3 f5 9. Bg5 Qd7 10. Bxc6 Qxc6 11. 0-0 0-0 12. d4 e4 13. Ne5 Qb5 14. Bf4 Be6 15. b3 Rad8 16. a4 Qe8 17. c4 h6 18. c5 Bxc5 19. Rc1 Bb6 20. Be3 f4 21. b4 fxe3 22. fxe3 c6 23. Rxf8+ Qxf8 24. Qf1 Qxf1+ 25. Rxf1 Kh7 26. g4 Rxd4 27. exd4 Bxd4+ 28. Kg2 Bxe5 29. h3 e3 30. Kf3 e2 31. Re1 Bc4 32. Ke4 Bc3 33. Rxe2 Bxe2 34. Ke3 Bc4 35. h4 Kg6 36. Kf4 Bd4 37. h5+ Kf6 38. Kf3 Bd3 39. g5+ Ke5 40. gxh6 gxh6 41. Kg3 Kf5 42. Kh4 Kf4 43. Kh3 Kf3 44. Kh4 Be5 45. Kh3 Bf5+ 46. Kh4 Bf6# 0-1

[Event "Boyaca Region-ch qual"]
[Site "Duitama"]
[Date "2010.05.16"]
[Round "4.3"]
[White "Sierra, Edwin Andres"]
[Black "Torres, Carlos Andres"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2136"]
[BlackElo "1818"]
[PlyCount "45"]
[EventDate "2010.05.15"]
[EventType "swiss"]
[EventRounds "6"]
[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 e6 6. Be3 Bb4 7. Bd3 d5 8. Nxc6 bxc6 9. e5 d4 10. exf6 Qxf6 11. Be4 Bxc3+ 12. bxc3 dxe3 13. Bxc6+ Ke7 14. 0-0 Rb8 15. fxe3 Qxc3 16. Qf3 f6 17. Qg3 f5 18. Qxb8 Qxc6 19. Rab1 Rd8 20. Qxa7+ Rd7 21. Qb6 Qe4 22. Qc5+ Kd8 23. Rb8 1-0

