[Event "Medellin Cuartas Memorial B"]
[Site "Medellin"]
[Date "2011.08.05"]
[Round "4.19"]
[White "Arias, Jorge Mario"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1629"]
[BlackElo "1722"]
[PlyCount "46"]
[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. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. 0-0 Ngf6 8. Re1 Bxe4 9. Bxe4 c6 10. Bd3 Qb6 11. c3 c5 12. Qc2 cxd4 13. Nxd4 Bc5 14. Be3 Nd5 15. Rad1 Rc8 16. Qb1 N7f6 17. Bb5+ Ke7 18. Ba4 Nxe3 19. Rxe3 Rhd8 20. Red3 Bxd4 21. Rxd4 Rxd4 22. cxd4 Rc4 23. Bb3 Rxd4 0-1

[Event "Medellin Cuartas Memorial B"]
[Site "Medellin"]
[Date "2011.08.03"]
[Round "1.21"]
[White "Encizo Mona, Orlando"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1600"]
[BlackElo "1722"]
[PlyCount "20"]
[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 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. d3 g6 7. Bg5 Bg7 8. Nc3 Qb6 9. Rb1 a6 10. Qd2 0-0 1/2-1/2

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.24"]
[Round "8.14"]
[White "Llano Buritica, Eduardo Alejandro"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1672"]
[BlackElo "1602"]
[PlyCount "59"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[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. c3 Nc6 5. Be3 cxd4 6. cxd4 Qb6 7. Bd3 Nge7 8. b3 Bd7 9. Nf3 Nb4 10. Nc3 Rc8 11. Rc1 Nxd3+ 12. Qxd3 Nf5 13. 0-0 Be7 14. Na4 Qd8 15. Rxc8 Bxc8 16. Rc1 0-0 17. Nc5 Qa5 18. Qd2 Qxd2 19. Bxd2 Bd8 20. Bb4 Re8 21. Nd3 Bd7 22. g4 Nh6 23. h3 f6 24. a4 b6 25. Kg2 Kf7 26. Kg3 Ng8 27. exf6 gxf6 28. Nde5+ fxe5 29. Nxe5+ Kg7 30. Nxd7 1-0

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.24"]
[Round "9.16"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Lopez, Jose Henry"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "1602"]
[BlackElo "1520"]
[PlyCount "47"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Qf6 8. 0-0 Kd7 9. Bg5 Qxd4 10. Nxd4 h6 11. Bh4 g5 12. Bg3 Bg7 13. Rad1 Bxd4 14. Rxd4 Kc8 15. e5 dxe5 16. Bxe5 f6 17. Rfd1 b6 18. Rd8+ Kb7 19. Rxa8 Kxa8 20. Rd8+ Kb7 21. Bxf6 Nxf6 22. Rxh8 h5 23. Rh6 Ne8 24. Rxh5 1-0

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.23"]
[Round "6.27"]
[White "Gamboa Giraldo, Juan Esteban"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "0-1"]
[ECO "C34"]
[WhiteElo "1467"]
[BlackElo "1602"]
[PlyCount "30"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 exf4 4. d4 d6 5. Bb5 Bd7 6. 0-0 a6 7. Bc4 Be7 8. Bxf4 Nf6 9. e5 dxe5 10. dxe5 Ng8 11. Ng5 Nh6 12. Qh5 0-0 13. Be3 Bg4 14. Nxf7 Rxf7 15. Bxf7+ Kh8 0-1

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.23"]
[Round "7.20"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Hinestroza Farfan, Juan C"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1602"]
[BlackElo "1600"]
[PlyCount "55"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[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 d6 5. Be3 Nf6 6. Nc3 e5 7. Nxc6 bxc6 8. Bc4 Be7 9. 0-0 0-0 10. Qd2 Be6 11. Bxe6 fxe6 12. Rad1 d5 13. exd5 exd5 14. Bg5 d4 15. Qe2 Qc7 16. Bxf6 Bd6 17. Bxg7 Qxg7 18. Ne4 Bc7 19. Rd3 Kh8 20. Rg3 Qf7 21. b3 Rg8 22. Rxg8+ Rxg8 23. Ng3 Bd6 24. Qe4 c5 25. Nf5 Qg6 26. Nxd6 Qxd6 27. Re1 Re8 28. f4 1-0

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.22"]
[Round "5.30"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Jaramillo, Gabriel"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1602"]
[BlackElo "1584"]
[PlyCount "55"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Qa5 7. Bxf6 gxf6 8. Qd2 h5 9. Nb3 Qc7 10. 0-0-0 Bh6 11. f4 Be6 12. Kb1 Nc6 13. g3 Rc8 14. Nd4 Nxd4 15. Qxd4 b5 16. Bd3 Qc5 17. Ne2 Bg4 18. Qxc5 Rxc5 19. Rde1 Bc8 20. Nc3 Bb7 21. Re2 f5 22. Rhe1 fxe4 23. Bxe4 Bxe4 24. Nxe4 Rc6 25. Nf6+ Kf8 26. Nxh5 e6 27. Nf6 Kg7 28. Ng4 1-0

[Event "Medellin Amateur op"]
[Site "Medellin"]
[Date "2011.04.20"]
[Round "1.4"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Arroyave, Jhon Jairo"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "1602"]
[BlackElo "1778"]
[PlyCount "77"]
[EventDate "2011.04.20"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 b5 8. 0-0-0 Bb7 9. f3 Be7 10. Kb1 0-0 11. Bd3 Nbd7 12. h4 Ne5 13. g4 b4 14. Nce2 d5 15. Bxf6 Bxf6 16. g5 Be7 17. exd5 Bxd5 18. Be4 Bxe4 19. fxe4 Qb6 20. h5 Rfd8 21. Qf4 Nc6 22. g6 Bf6 23. Nxc6 Qxc6 24. e5 Rxd1+ 25. Rxd1 Bxe5 26. Qxe5 f6 27. Qd6 Qe8 28. Qd7 e5 29. Qxe8+ Rxe8 30. Rd6 f5 31. Kc1 f4 32. Kd2 hxg6 33. hxg6 Kf8 34. Rxa6 f3 35. Ng3 Rd8+ 36. Ke3 f2 37. Kxf2 Rd2+ 38. Ke3 Rxc2 39. Nf5 1-0

[Event "Antioquia Region-ch C"]
[Site "Medellin"]
[Date "2011.??.??"]
[Round "3.13"]
[White "Castano Ochoa, Clemente"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "1691"]
[BlackElo "1602"]
[PlyCount "82"]
[EventDate "2011.03.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Bd2 b6 5. a3 Bxc3 6. bxc3 Bb7 7. e3 0-0 8. Nf3 Ne4 9. Bd3 h6 10. 0-0 Nxd2 11. Nxd2 d6 12. f4 c5 13. Be4 Bxe4 14. Nxe4 d5 15. cxd5 Qxd5 16. Qf3 cxd4 17. Rad1 f5 18. Nd2 Qxf3 19. Nxf3 dxc3 20. Rd6 Na6 21. Kf2 Nc5 22. Ke2 Rfd8 23. Rc6 Rac8 24. Rxc8 Rxc8 25. Nd4 Kf7 26. Rc1 Ne4 27. Rc2 a6 28. Kd3 b5 29. Nb3 Ke7 30. Nd4 Kd6 31. Nf3 Rc4 32. Nd4 Ra4 33. Ra2 b4 34. Kc2 Nd2 35. Ra1 Kc5 36. Kd3 Nc4 37. Nc2 Nb2+ 38. Ke2 b3 39. Nd4 Rxd4 40. exd4+ Kxd4 41. Rb1 c2 0-1

[Event "Antioquia Region-ch C"]
[Site "Medellin"]
[Date "2011.??.??"]
[Round "2.25"]
[White "Murillo Castro, Johan"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1630"]
[BlackElo "1602"]
[PlyCount "56"]
[EventDate "2011.03.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. c4 Bb4+ 5. Nd2 Ne4 6. Ngf3 0-0 7. Bd3 Nxd2 8. Nxd2 c5 9. 0-0 cxd4 10. Nf3 dxe3 11. fxe3 dxc4 12. Bxh7+ Kh8 13. Qc2 f5 14. Bg6 Qd3 15. Qxd3 cxd3 16. Ne5 Nc6 17. Nxd3 Bd7 18. a3 Be7 19. Rf3 Rf6 20. Bg5 Rxg6 21. Bxe7 e5 22. Rh3+ Kg8 23. Bb4 f4 24. Rf3 Bg4 25. Raf1 Bxf3 26. Rxf3 Rd8 27. exf4 e4 28. f5 exf3 0-1

[Event "Antioquia Region-ch C"]
[Site "Medellin"]
[Date "2011.??.??"]
[Round "5.10"]
[White "Ossa Ramirez, Jesus Antonio"]
[Black "Plaza Sibaja, Oscar Emilio"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1785"]
[BlackElo "1602"]
[PlyCount "42"]
[EventDate "2011.03.03"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 c4 7. Bc2 Be7 8. h4 b5 9. Ng5 Bxg5 10. hxg5 g6 11. g4 Qb6 12. a3 a5 13. Be3 Rb8 14. Qf3 b4 15. Bd2 bxc3 16. Bxc3 Nxd4 17. Bxd4 Qxd4 18. Qc3 Qxc3+ 19. bxc3 Ne7 20. Nd2 Nc6 21. f4 Na7 0-1

[Event "Antioquia Region-ch C"]
[Site "Medellin"]
[Date "2011.??.??"]
[Round "7.4"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Castano Hoyos, David"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "1602"]
[BlackElo "1725"]
[PlyCount "55"]
[EventDate "2011.03.03"]
[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 Nf6 4. 0-0 d6 5. d4 exd4 6. Nxd4 Bd7 7. Re1 Nxd4 8. Bxd7+ Nxd7 9. Qxd4 Qf6 10. Qa4 a6 11. Nc3 c6 12. Be3 Be7 13. Rad1 0-0 14. Qd4 Rfe8 15. Qxf6 Nxf6 16. Bg5 Rad8 17. f3 h6 18. Bh4 Nh5 19. Bxe7 Rxe7 20. Rd2 f5 21. Red1 fxe4 22. Nxe4 d5 23. c4 Re5 24. cxd5 Rdxd5 25. Rxd5 Rxd5 26. Rxd5 cxd5 27. Nc5 b6 28. Nxa6 1-0

[Event "Antioquia Region-ch C"]
[Site "Medellin"]
[Date "2011.??.??"]
[Round "6.6"]
[White "Plaza Sibaja, Oscar Emilio"]
[Black "Mora Rojas, Alfonso"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "1602"]
[BlackElo "1632"]
[PlyCount "23"]
[EventDate "2011.03.03"]
[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 d6 4. d4 Bd7 5. 0-0 Nxd4 6. Bxd7+ Qxd7 7. Nxd4 exd4 8. Qxd4 Nf6 9. Nc3 Be7 10. Be3 0-0 11. Rad1 Ng4 12. Bf4 1-0

