[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.07.03"]
[Round "9"]
[White "Orrego, David"]
[Black "Rojas Castillo, Leibnitz Edison"]
[Result "1/2-1/2"]
[ECO "C50"]
[BlackElo "1900"]
[PlyCount "56"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[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. Nc3 Nf6 5. d3 0-0 6. Bg5 d6 7. h3 Be6 8. Bxe6 fxe6 9. 0-0 Qd7 10. Be3 Bb6 11. Bxb6 axb6 12. a3 d5 13. Re1 Rfe8 14. d4 exd4 15. Nxd4 Nxd4 16. Qxd4 Rad8 17. e5 Ne4 18. Nxe4 dxe4 19. Qxd7 Rxd7 20. Rxe4 Rd2 21. Rc1 Rf8 22. f3 Rfd8 23. Ree1 Kf7 24. Kh2 Kg6 25. Kg3 Kg5 26. f4+ Kf5 27. Rf1 R2d4 28. h4 h5 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.07.02"]
[Round "8"]
[White "Rojas Ruiz, Andres Esteban"]
[Black "Orrego, David"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "7"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[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. Ng5 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.07.01"]
[Round "6"]
[White "Duque, Victor Manuel"]
[Black "Orrego, David"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "34"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[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 Nf6 4. Bc4 Bc5 5. 0-0 d6 6. d3 h6 7. Be3 Bxe3 8. fxe3 Bg4 9. h3 Bh5 10. d4 0-0 11. Qd2 a6 12. Be2 Bg6 13. d5 Nb4 14. a3 Nxe4 15. Nxe4 Bxe4 16. axb4 c6 17. dxc6 bxc6 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.06.30"]
[Round "4"]
[White "Orrego, David"]
[Black "Bustos Ledezma, Sebastian"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "75"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nxc6 bxc6 7. Bc4 d6 8. 0-0 Nf6 9. Bg5 0-0 10. Qd2 Bb7 11. Rad1 Nd7 12. Bh6 Ne5 13. Be2 Qd7 14. Bxg7 Kxg7 15. h3 c5 16. a3 a5 17. Nd5 Bxd5 18. exd5 Rfd8 19. Qc3 Kg8 20. Qg3 Qf5 21. c3 Rab8 22. Bg4 Nxg4 23. hxg4 Qe5 24. Qxe5 dxe5 25. Rfe1 Rd7 26. g5 e6 27. c4 exd5 28. Rxd5 Rxd5 29. cxd5 Rxb2 30. Rd1 Kf8 31. d6 Ke8 32. d7+ Kd8 33. Kf1 Rb7 34. Re1 Rxd7 35. Rxe5 Rc7 36. Ke2 c4 37. f4 c3 38. g4 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.06.29"]
[Round "2"]
[White "Orrego, David"]
[Black "Torres Acosta, Luis Daniel"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "90"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. g3 Nf6 7. Nc3 d6 8. Bg2 Bd7 9. 0-0 Ng4 10. a3 Nxe3 11. fxe3 Ne5 12. Nd5 0-0 13. Rb1 e6 14. Nc3 Qb6 15. b4 Nc4 16. Qd3 Nxe3 17. Rf3 Bxd4 18. Ne2 Nxc2+ 19. Nxd4 Nxd4 20. Rf6 Bb5 21. Qd1 Be2 22. Qa4 Nb5+ 23. Kh1 Nc3 24. Qc2 Nxb1 25. Qxe2 Qd4 26. Rf3 Rac8 27. Rd3 Rc1+ 28. Bf1 Nc3 29. Qf3 Qxe4 30. Qxe4 Nxe4 31. Kg1 Rfc8 32. Kg2 R8c2+ 33. Kf3 Nd2+ 34. Ke2 Nxf1+ 35. Kf3 Rc3 36. Rxc3 Rxc3+ 37. Kf2 Nd2 38. Ke2 Nc4 39. Kd1 Nxa3 40. Ke2 d5 41. Kf2 d4 42. Kg2 d3 43. Kh3 d2 44. Kh4 d1Q 45. h3 Qh5# 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2015.06.29"]
[Round "3"]
[White "Tobar Beltran, Carlos Andres"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1316"]
[PlyCount "41"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 h6 3. Bh4 Nc6 4. Nc3 Nf6 5. e3 e6 6. Nf3 Be7 7. Bb5 Ne4 8. Bxe7 Qxe7 9. Qd3 0-0 10. a3 a6 11. Bxc6 bxc6 12. Nxe4 dxe4 13. Qxe4 Bb7 14. 0-0 Rab8 15. Rfe1 Rfd8 16. c4 c5 17. d5 Qf6 18. Rab1 a5 19. Ne5 Qf5 20. Qxf5 exf5 21. f4 1-0

[Event "Antioquia Region-ch U12"]
[Site "Medellin"]
[Date "2015.04.30"]
[Round "5.6"]
[White "Cabrera Novoa, Emanuel"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1430"]
[BlackElo "1318"]
[PlyCount "27"]
[EventDate "2015.04.28"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bg5 h6 7. Bh4 e6 8. Nf3 Be7 9. 0-0 0-0 10. Nbd2 Qd7 11. Re1 Rd8 12. Qc2 a6 13. Rad1 b5 14. Bxf6 1-0

[Event "Antioquia Region-ch U12"]
[Site "Medellin"]
[Date "2015.04.30"]
[Round "6.7"]
[White "Lopez Herrera, Tomas"]
[Black "Orrego, David"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1318"]
[PlyCount "63"]
[EventDate "2015.04.28"]
[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 Nc6 3. Bc4 Nf6 4. Nc3 Be7 5. 0-0 d6 6. d3 Bg4 7. Bg5 Nd4 8. h3 Bh5 9. Bxf6 Bxf6 10. Nd5 0-0 11. c3 Nxf3+ 12. gxf3 Bh4 13. Kh1 c6 14. Ne3 Qf6 15. Ng2 Bxf3 16. Qd2 Bxg2+ 17. Kxg2 Qg6+ 18. Kf3 d5 19. exd5 c5 20. d4 cxd4 21. cxd4 e4+ 22. Ke3 Bg5+ 23. f4 exf3+ 24. Kxf3 Qh5+ 25. Kg2 Bxd2 26. Rfd1 Qg5+ 27. Kf2 Qe3+ 28. Kg2 Qxd4 29. Be2 Qxd5+ 30. Bf3 Qg5+ 31. Kf2 Be3+ 32. Ke2 0-1

[Event "Antioquia Region-ch U12"]
[Site "Medellin"]
[Date "2015.04.29"]
[Round "3.4"]
[White "Arbelaez Velasquez, Jeronimo"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "1488"]
[BlackElo "1318"]
[PlyCount "26"]
[EventDate "2015.04.28"]
[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 c6 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qd6 5. Bc4 Be6 6. Bxe6 fxe6 7. 0-0 Nd7 8. d3 0-0-0 9. Ne4 Qc7 10. Nfg5 Ngf6 11. Nxe6 Qd6 12. Nxd8 Kxd8 13. Bg5 Ne5 1-0

[Event "Antioquia Region-ch U12"]
[Site "Medellin"]
[Date "2015.04.29"]
[Round "4.5"]
[White "Orrego, David"]
[Black "Ospina Castro, Santiago"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1318"]
[BlackElo "1563"]
[PlyCount "66"]
[EventDate "2015.04.28"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Be2 Nc6 6. Be3 Qxb2 7. Nd2 Qxc3 8. Rc1 Qa5 9. Rc2 cxd4 10. Bf4 Bb4 11. Ngf3 Nge7 12. 0-0 0-0 13. Nb3 Qb6 14. Nbxd4 Nxd4 15. Nxd4 Bc5 16. Nf3 Bd7 17. Qd3 Ng6 18. Rc3 Nxf4 19. Qc2 Nxe2+ 20. Qxe2 Bb5 21. Qc2 Bxf1 22. Ng5 g6 23. Rxc5 Bc4 24. Rxc4 dxc4 25. Qxc4 Qb1+ 26. Qf1 Qxf1+ 27. Kxf1 Rfd8 28. Ke2 Rac8 29. Kf3 Rd3+ 30. Kg4 Rc4+ 31. f4 h5+ 32. Kh4 Rxf4+ 33. g4 Rxg4# 0-1

[Event "Antioquia Region-ch U12"]
[Site "Medellin"]
[Date "2015.04.28"]
[Round "1.3"]
[White "Duque Vasquez, David"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1517"]
[BlackElo "1318"]
[PlyCount "63"]
[EventDate "2015.04.28"]
[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 c6 2. Nc3 d5 3. exd5 cxd5 4. d4 Nc6 5. Nf3 a6 6. Be2 Nf6 7. 0-0 Bf5 8. Ne5 Qd6 9. f4 Ne4 10. Bf3 Nxe5 11. fxe5 Qg6 12. Nxd5 Rc8 13. Nf4 Qg5 14. c3 e6 15. Nxe6 Qg6 16. Nf4 Qh6 17. Bg4 g6 18. Nh5 Ng5 19. Nf6+ Ke7 20. Bxf5 gxf5 21. Rxf5 Qg6 22. Rxg5 Qh6 23. Rg4 Qg6 24. Rxg6 hxg6 25. Qg4 Rc7 26. Nd5+ Kd8 27. Bg5+ Be7 28. Nxc7 Bxg5 29. Qxg5+ Kxc7 30. Qe7+ Kc6 31. Qf6+ Kd7 32. Qxh8 1-0

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.24"]
[Round "6.11"]
[White "Orrego, David"]
[Black "Palacio, Daniel"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "41"]
[EventDate "2013.03.22"]
[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 Bb4 3. a3 Bc5 4. Nc3 Nc6 5. g3 Nf6 6. Bg2 0-0 7. 0-0 Qe8 8. Nxe5 Qxe5 9. Rb1 Qd4 10. b4 Re8 11. bxc5 Qxc5 12. Kh1 b6 13. f4 Ba6 14. e5 Nxe5 15. fxe5 Qc6 16. Bxc6 Bc4 17. Bxa8 Rxa8 18. d4 Bb5 19. Qf3 Bxf1 20. Qxa8+ Ne8 21. Qxe8# 1-0

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.24"]
[Round "5.8"]
[White "Tapiero Rodas, Jhon Estiven"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "29"]
[EventDate "2013.03.22"]
[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 Nc6 3. Bc4 b6 4. Nc3 Bb7 5. d3 Nf6 6. Ng5 Rg8 7. Bxf7+ Ke7 8. Bxg8 Nxg8 9. Qh5 g6 10. Qxh7+ Kd6 11. Nf7+ Ke7 12. Bg5+ Nf6 13. Nxd8+ Kxd8 14. Bxf6+ Be7 15. Qg8# 1-0

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.23"]
[Round "3.13"]
[White "Correa Gomez, Brayan"]
[Black "Orrego, David"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "104"]
[EventDate "2013.03.22"]
[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 Nc6 3. Bc4 Nf6 4. Nc3 b6 5. Ng5 Qe7 6. Bxf7+ Kd8 7. 0-0 Bb7 8. Bb3 h6 9. Nf7+ Kc8 10. Nxh8 Nd4 11. Ng6 Qe8 12. Nh4 Nxb3 13. axb3 Nxe4 14. Nxe4 Bxe4 15. f3 Bc5+ 16. Kh1 Bd5 17. c4 Be6 18. f4 Bd6 19. f5 g5 20. fxe6 gxh4 21. exd7+ Kxd7 22. d4 e4 23. Bf4 Bxf4 24. Rxf4 e3 25. Qd3 e2 26. Re1 a5 27. Rxe2 Qh5 28. Rf5 Qg6 29. Ree5 h3 30. g3 a4 31. Rh5 a3 32. Rxh3 a2 33. Re1 Qxd3 34. Rxh6 a1Q 35. Rxa1 Rxa1+ 36. Kg2 Qe2+ 37. Kh3 Qf1+ 38. Kg4 Ke7 39. Rh7+ Kf6 40. Rh5 Kg6 41. Rg5+ Kf6 42. d5 Qe1 43. Kf3 Qf1+ 44. Kg4 Re1 45. Kh5 Re5 46. Rxe5 Kxe5 47. g4 Qh3+ 48. Kg5 Qe3+ 49. Kh4 Qf3 50. Kh5 Kf6 51. c5 Qxd5+ 52. Kh4 bxc5 0-1

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.23"]
[Round "4.11"]
[White "Orrego, David"]
[Black "Ossa, Juan Esteban"]
[Result "1/2-1/2"]
[ECO "C47"]
[BlackElo "1300"]
[PlyCount "54"]
[EventDate "2013.03.22"]
[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 Nc6 3. Nc3 Nf6 4. g3 Bc5 5. Bg2 Ng4 6. 0-0 Nf6 7. Na4 Be7 8. Nc3 d6 9. d3 Bg4 10. Ne2 Bxf3 11. Bxf3 Nd4 12. Nxd4 exd4 13. c3 dxc3 14. bxc3 0-0 15. Rb1 Rb8 16. Qa4 Qd7 17. Qxa7 Qc6 18. Ba3 Ra8 19. Qd4 Rxa3 20. Bg2 Ra4 21. Qe3 Qxc3 22. Rbc1 Qb4 23. e5 dxe5 24. Rxc7 Qb5 25. Rxe7 Ra3 26. Bxb7 Qxd3 27. Qxd3 Rxd3 1/2-1/2

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.22"]
[Round "1.7"]
[White "Bohorquez Mahecha, Juan Pablo"]
[Black "Orrego, David"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1396"]
[PlyCount "65"]
[EventDate "2013.03.22"]
[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 Nc6 3. d4 Nf6 4. Nc3 Bb4 5. Nxe5 Nxe5 6. dxe5 Nxe4 7. Qd4 Qh4 8. g3 Qg4 9. Bg2 Qf5 10. Bxe4 c5 11. Bxf5 cxd4 12. a3 Bc5 13. Nd5 0-0 14. 0-0 b5 15. b4 d6 16. Ne7+ Kh8 17. Nxc8 g6 18. Bh3 f5 19. exf6 Bb6 20. Bb2 Rxf6 21. Nxb6 axb6 22. Bxd4 Kg7 23. Rfe1 Kf7 24. Bxf6 Kxf6 25. Re6+ Kf7 26. Rd1 Rd8 27. Rdxd6 Rc8 28. Rf6+ Ke7 29. Bxc8 g5 30. Rh6 g4 31. Rd7+ Ke8 32. Rhxh7 Kf8 33. Rh8# 1-0

[Event "Central Region-ch U14"]
[Site "Dosquebradas"]
[Date "2013.03.22"]
[Round "2.12"]
[White "Orrego, David"]
[Black "Rodriguez Valencia, Sebastian"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1300"]
[PlyCount "42"]
[EventDate "2013.03.22"]
[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 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Bg5 h6 6. Bh4 d6 7. h3 Be6 8. b3 Bxc4 9. bxc4 Qe7 10. Nc3 Bb4 11. Qd2 Nd4 12. 0-0 Nxf3+ 13. gxf3 0-0 14. a3 Bxc3 15. Qxc3 Qe6 16. Bxf6 Qxf6 17. Kg2 Rfe8 18. Rab1 Qg5+ 19. Kh2 Qf4+ 20. Kg2 b6 21. c5 dxc5 0-1

