[Event "Medellin Cuartas Memorial B"]
[Site "Medellin"]
[Date "2011.08.06"]
[Round "6.53"]
[White "Sanchez, Sebastian1"]
[Black "Contreras, Carlos"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1495"]
[BlackElo "1600"]
[PlyCount "63"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Nxd4 Ne7 6. Bb5+ Bd7 7. Qd3 Bxb5 8. Qxb5+ Nbc6 9. 0-0 a6 10. Qxb7 Nxd4 11. Nc3 Nec6 12. Be3 Bb4 13. Na4 0-0 14. Nb6 Ne2+ 15. Kh1 Ncd4 16. c3 Bc5 17. Nd7 Be7 18. Nxf8 Rb8 19. Qxa6 Nf5 20. Qxe2 Kxf8 21. b4 Bg5 22. Bc5+ Kg8 23. a4 f6 24. a5 fxe5 25. Qxe5 Bf6 26. Qxe6+ Kh8 27. Bb6 Rxb6 28. axb6 Ne7 29. b7 Bxc3 30. Ra8 Bxb4 31. Rxd8+ Ng8 32. Qxg8# 1-0

[Event "Medellin Cuartas Memorial B"]
[Site "Medellin"]
[Date "2011.08.05"]
[Round "3.33"]
[White "Contreras, Carlos"]
[Black "Charris Zabaleta, Rafael Julio"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1600"]
[BlackElo "1684"]
[PlyCount "66"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nge7 7. Nd5 h5 8. h3 Be6 9. Qa4 0-0 10. Nec3 a6 11. d3 Bf5 12. e4 Bd7 13. Bg5 f6 14. Be3 Nd4 15. Qd1 Nxd5 16. Nxd5 c6 17. Nb4 Qb6 18. a3 a5 19. Nc2 Qxb2 20. Bxd4 exd4 21. Rb1 Qc3+ 22. Qd2 Qxd2+ 23. Kxd2 Rab8 24. f4 h4 25. Nxd4 hxg3 26. Ke3 b5 27. Ne2 b4 28. axb4 axb4 29. Rb3 c5 30. h4 Ra8 31. Rhb1 Bh6 32. e5 fxe5 33. Bd5+ Kh7 0-1

[Event "Medellin Cuartas Memorial B"]
[Site "Medellin"]
[Date "2011.08.03"]
[Round "1.19"]
[White "Contreras, Carlos"]
[Black "Uribe Roman, Alejandro"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "1600"]
[BlackElo "1729"]
[PlyCount "111"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. g3 Nf6 5. Bg2 Be7 6. e3 0-0 7. Nge2 Re8 8. 0-0 c6 9. h3 Nbd7 10. d4 Nb6 11. b3 Bf5 12. Nf4 g5 13. Nd3 Qc7 14. Ne5 Nbd7 15. f4 Bb4 16. Bb2 Bxc3 17. Bxc3 Be4 18. Rc1 Bxg2 19. Kxg2 Ne4 20. fxg5 Nxe5 21. dxe5 Nxc3 22. Rxc3 Qxe5 23. Rd3 Qxg5 24. Qf3 Re7 25. Rd4 f5 26. Rd3 Rae8 27. Kf2 Kg7 28. Rg1 Re4 29. Rg2 h5 30. Rg1 R8e7 31. a3 Kg6 32. b4 Qf6 33. Re1 d4 34. Rxd4 Rxd4 35. exd4 Qxd4+ 36. Kf1 Rxe1+ 37. Kxe1 a5 38. bxa5 Qe5+ 39. Kf2 Qxa5 40. Qb3 Qd2+ 41. Kf1 Qd7 42. Qg8+ Kf6 43. Qh8+ Qg7 44. Qd8+ Kg6 45. Qe8+ Qf7 46. Qe3 Qc4+ 47. Kf2 Qc2+ 48. Kf3 Qd1+ 49. Kf4 Qd6+ 50. Kf3 Qd7 51. h4 Qd5+ 52. Kf4 b5 53. Qe8+ Qf7 54. Qxc6+ Kg7 55. Qxb5 Qc7+ 56. Qe5+ 1-0

