[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.27"]
[Round "6"]
[White "Contreras Rivera, Juan David"]
[Black "Jaimes Contreras, Renzon Alexis"]
[Result "0-1"]
[ECO "B23"]
[BlackElo "1567"]
[PlyCount "35"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7 4. Nf3 a6 5. Ba4 b5 6. Bb3 c4 7. 0-0 cxb3 8. cxb3 Nf6 9. d3 g6 10. b4 Bg7 11. d4 0-0 12. e5 dxe5 13. dxe5 Ng4 14. Bg5 Nxe5 15. Nd5 Nxf3+ 16. Qxf3 Nc6 17. a3 f6 18. Bf4 0-1

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.27"]
[Round "7"]
[White "Contreras Rivera, Juan David"]
[Black "Vilardy Diaz, Bryan"]
[Result "0-1"]
[ECO "B04"]
[PlyCount "54"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 Nf6 2. Nf3 Nxe4 3. Nc3 Nc5 4. Bb5 c6 5. Bd3 Nxd3+ 6. cxd3 d5 7. 0-0 Bf5 8. b3 Bxd3 9. Re1 Qd6 10. Re5 Nd7 11. Qe1 f6 12. Re3 Ba6 13. Re6 Qb4 14. Re3 e5 15. Ba3 Qxa3 16. Na4 Bb5 17. Rc3 Ba6 18. Rb1 Qxa2 19. Qe3 Qxb1+ 20. Qe1 Qa2 21. h3 d4 22. Rd3 Bb4 23. Qxe5+ Nxe5 24. Nxe5 Bd6 25. Rxd4 Bxe5 26. Rd8+ Rxd8 27. Nb6 Qa1# 0-1

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.26"]
[Round "5"]
[White "Arias Serrano, Luis Antonio"]
[Black "Contreras Rivera, Juan David"]
[Result "1-0"]
[ECO "C66"]
[WhiteElo "2144"]
[PlyCount "37"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 d6 4. Bb5 Bg4 5. 0-0 Nf6 6. h3 Bxf3 7. Qxf3 Be7 8. d3 0-0 9. Be3 b6 10. Bxc6 Rc8 11. Qg3 Kh8 12. d4 exd4 13. Bxd4 Rg8 14. Rad1 d5 15. e5 Ne4 16. Qg4 h6 17. e6 fxe6 18. Qxe6 Bb4 19. Qxh6# 1-0

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.26"]
[Round "4"]
[White "Contreras Rivera, Juan David"]
[Black "Tarazona Pita, Duvan Alfonso"]
[Result "0-1"]
[ECO "C20"]
[PlyCount "44"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. d3 c5 3. h4 d6 4. Bg5 Ne7 5. Nc3 h6 6. Bxe7 Bxe7 7. Be2 a6 8. Nf3 f5 9. 0-0 Bxh4 10. g3 Bg5 11. exf5 Bxf5 12. g4 Bxg4 13. Nxg5 Qxg5 14. Bxg4 h5 15. Ne2 Qxg4+ 16. Ng3 Qg5 17. Kh1 Nc6 18. Ne4 Qh4+ 19. Kg1 0-0-0 20. Nxd6+ Rxd6 21. Qd2 Rg6+ 22. Qg5 Rxg5# 0-1

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.26"]
[Round "3"]
[White "Rico Hernandez, Edgar"]
[Black "Contreras Rivera, Juan David"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1840"]
[PlyCount "81"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 e5 2. dxe5 Bc5 3. Bf4 Bb4+ 4. c3 Ba5 5. Nf3 Ne7 6. Nbd2 0-0 7. e3 d5 8. exd6 cxd6 9. Nc4 Nbc6 10. Nxa5 Nxa5 11. Bxd6 Re8 12. Be2 Bd7 13. 0-0 Qb6 14. Ba3 Qd6 15. Ne5 Qd5 16. Qxd5 Nxd5 17. Nxd7 Red8 18. Ne5 b5 19. Bxb5 f6 20. Nf3 f5 21. Rfd1 f4 22. exf4 a6 23. Ba4 Rac8 24. g3 Nc4 25. Bb3 Ncb6 26. Rd4 a5 27. Rad1 a4 28. Bxd5+ Nxd5 29. Rxd5 Rxd5 30. Rxd5 Kf7 31. Ne5+ Ke6 32. Rd4 Kf5 33. Rxa4 Rd8 34. Rd4 Ra8 35. c4 g6 36. c5 h6 37. c6 g5 38. g4+ Ke6 39. Rd6+ Ke7 40. Rxh6+ Ke8 41. Rh8# 1-0

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.25"]
[Round "2"]
[White "Contreras Rivera, Juan David"]
[Black "Pablo, Juan"]
[Result "1-0"]
[ECO "D00"]
[BlackElo "1883"]
[PlyCount "37"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Qd2 Nf6 3. Nc3 Nc6 4. Nf3 Bg4 5. Ne5 Ne4 6. Nxe4 dxe4 7. Nxg4 Nxd4 8. e3 Nc6 9. Qc3 e6 10. Bb5 Qd7 11. Ne5 Nxe5 12. Bxd7+ Nxd7 13. Bd2 Bd6 14. 0-0-0 Be5 15. Qb3 b6 16. Qb5 a6 17. Qc6 Rc8 18. Bb4 a5 19. Qxd7# 1-0

[Event "Ocana op 1st"]
[Site "Ocana"]
[Date "2015.09.25"]
[Round "1"]
[White "Sequeda Ramirez, Pablo"]
[Black "Contreras Rivera, Juan David"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2099"]
[PlyCount "31"]
[EventDate "2015.09.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. c3 d6 6. d4 exd4 7. cxd4 Bb6 8. h3 Nxd4 9. Nxd4 Nxe4 10. Re1 Bf5 11. Nc3 0-0 12. Nxe4 Re8 13. Nxf5 g6 14. Bg5 Qc8 15. Nf6+ Kf8 16. Bh6# 1-0

