[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.21"]
[Round "9"]
[White "Valencia, Oscar"]
[Black "Ariza, Luis"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1728"]
[PlyCount "71"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 Nc6 7. d5 Nb8 8. 0-0 Nbd7 9. Qc2 e5 10. dxe6 fxe6 11. Bg5 e5 12. Rad1 h6 13. Bxf6 Nxf6 14. Nxe5 Qe8 15. Nf3 g5 16. Nd4 Nh5 17. Ncb5 Qf7 18. Bxh5 Qxh5 19. Ne2 Bg4 20. f3 Be5 21. Ng3 Bxg3 22. hxg3 Bd7 23. Qd3 Rf7 24. Nxc7 Raf8 25. Qxd6 Bc6 26. g4 Qh4 27. Qg6+ Rg7 28. Qe6+ Rgf7 29. Rd6 Kg7 30. Qg6+ Kh8 31. Ne6 Bxe4 32. Qxe4 Rxf3 33. Rxf3 Rxf3 34. Qe5+ Rf6 35. Qxf6+ Kh7 36. Qg7# 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "8"]
[White "Ulloa, Ruben Guillermo"]
[Black "Valencia, Oscar"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2016"]
[BlackElo "1728"]
[PlyCount "51"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Qc2 e5 8. Rd1 exd4 9. Nxd4 a6 10. Nc3 Re8 11. Nb3 Qe7 12. Bg5 h6 13. Nd5 Qxe2 14. Rd2 Qe5 15. Bf4 Qh5 16. Nxc7 Rb8 17. Nxe8 Nxe8 18. Re1 Ndf6 19. c5 Bf5 20. Qd1 Rd8 21. Qxh5 Nxh5 22. Bxb7 Nxf4 23. gxf4 Nf6 24. c6 Ne4 25. Rxe4 Bxe4 26. c7 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "7"]
[White "Valencia, Oscar"]
[Black "Lemus, Hector"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "1728"]
[BlackElo "1616"]
[PlyCount "75"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 e6 4. Nc3 Nf6 5. Bf4 Bb4 6. Qc2 0-0 7. e3 Bd7 8. Bd3 Re8 9. 0-0 Be7 10. c5 Na6 11. Be5 Nb4 12. Qd2 Nxd3 13. Qxd3 b6 14. b4 a5 15. a3 Kh8 16. Ng5 Kg8 17. Bxf6 Bxf6 18. Qxh7+ Kf8 19. Nf3 Ke7 20. Qc2 Rh8 21. cxb6 Qxb6 22. Na4 Qb5 23. Rab1 axb4 24. Rxb4 Qa5 25. Rfb1 Rhg8 26. Nb6 Rad8 27. Ra4 Qxa4 28. Qxa4 Rb8 29. Qa7 Rbd8 30. Nxd7 Rxd7 31. Qc5+ Ke8 32. Qxc6 Ke7 33. Qc5+ Ke8 34. Rb8+ Rd8 35. Qc6+ Ke7 36. Qc7+ Rd7 37. Qc5+ Rd6 38. Rb7+ 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.19"]
[Round "6"]
[White "Echeverria, Carlos Enrique"]
[Black "Valencia, Oscar"]
[Result "0-1"]
[ECO "B51"]
[BlackElo "1728"]
[PlyCount "44"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. Bb5 Bd7 5. 0-0 a6 6. Bxc6 Bxc6 7. Re1 e6 8. d4 Be7 9. Nbd2 Nf6 10. b3 0-0 11. Bb2 b5 12. Rc1 Rc8 13. e5 Nd5 14. Rc2 cxd4 15. Nxd4 dxe5 16. Rxe5 Bf6 17. Nxc6 Rxc6 18. Re1 Nxc3 19. Bxc3 Rxc3 20. Rxc3 Bxc3 21. Re2 Qd6 22. h3 Rd8 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "4"]
[White "Giron, Jorge Ernesto"]
[Black "Valencia, Oscar"]
[Result "1-0"]
[ECO "B70"]
[WhiteElo "2223"]
[BlackElo "1728"]
[PlyCount "113"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bg5 Bg7 7. Bb5+ Bd7 8. Qe2 a6 9. Bxd7+ Nbxd7 10. 0-0-0 0-0 11. f4 Qc7 12. Rhe1 h6 13. Bh4 e5 14. fxe5 dxe5 15. Nb3 b5 16. Kb1 Rfb8 17. Nd5 Nxd5 18. Rxd5 Nb6 19. Rc5 Qa7 20. Bf2 Qe7 21. Rd1 Rd8 22. Rxd8+ Qxd8 23. Qd3 Qf6 24. Qf3 Rd8 25. Kc1 Qe6 26. Rc7 Bf6 27. Rc3 Nc4 28. h4 Be7 29. Rd3 Rxd3 30. cxd3 Nb6 31. Qe3 Na4 32. Qxh6 Qc8+ 33. Kb1 Qg4 34. Qe3 Qd1+ 35. Nc1 Bc5 36. Qe1 Qg4 37. Qg1 Be7 38. g3 Qc8 39. Qe1 Qc7 40. Qd2 Bc5 41. Nb3 Qd6 42. Be3 Bb4 43. Qc2 Be1 44. d4 Bxg3 45. d5 Bxh4 46. Qc8+ Kg7 47. Qh3 Be7 48. Bh6+ Kg8 49. Qc8+ Qd8 50. Qxa6 Qd7 51. Bc1 Nc5 52. Nxc5 Bxc5 53. Qf6 Qe7 54. Bg5 Qc7 55. Bh6 Bf8 56. Bxf8 Kxf8 57. d6 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "5"]
[White "Valencia, Oscar"]
[Black "Hernandez, Diego"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1728"]
[BlackElo "1950"]
[PlyCount "68"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Bxc3+ 6. bxc3 f5 7. Bd3 fxe4 8. Bxe4 Nf6 9. Bd3 Nbd7 10. Nf3 Qa5 11. Qc2 Nb6 12. 0-0 Bg4 13. Ng5 Qa4 14. Qb3 Bf5 15. Bxf5 gxf5 16. Rb1 Rb8 17. Qxa4+ Nxa4 18. Ne6 Rg8 19. Nc7+ Kd7 20. Nb5 a6 21. Na3 Nxc3 22. Rb2 b5 23. Be3 bxc4 24. Rxb8 Rxb8 25. Nxc4 Nfxd5 26. Re1 Nxe3 27. Nxe3 e6 28. h3 Rb1 29. Rxb1 Nxb1 30. g4 fxg4 31. hxg4 Nc3 32. a3 d5 33. f4 Ne2+ 34. Kf2 Nxf4 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "2"]
[White "Santiago Vilca, Christian Amilca"]
[Black "Valencia, Oscar"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1922"]
[BlackElo "1728"]
[PlyCount "70"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nc6 7. d5 Nb8 8. 0-0 c6 9. h3 Nbd7 10. Be3 a5 11. Qd2 a4 12. Nd4 Nc5 13. dxc6 Nfxe4 14. Nxe4 Nxe4 15. Qc2 Nc5 16. Bf3 e5 17. cxb7 Bxb7 18. Bxb7 Nxb7 19. Nb5 d5 20. cxd5 Qxd5 21. Nc7 Rfc8 22. Qxa4 Qxg2+ 23. Kxg2 Rxa4 24. Nd5 Rc2 25. Rfc1 Rac4 26. Rxc2 Rxc2 27. a4 Nc5 28. b4 e4 29. Ra3 Nd3 30. a5 Rb2 31. a6 Be5 32. a7 Ne1+ 33. Kf1 Nf3 34. a8Q+ Kg7 35. Nc3 Re2 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "3"]
[White "Valencia, Oscar"]
[Black "Solano Cuya, Bryan"]
[Result "0-1"]
[ECO "D88"]
[WhiteElo "1728"]
[BlackElo "2149"]
[PlyCount "58"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Be3 Nc6 9. Ne2 0-0 10. 0-0 Na5 11. Bd3 cxd4 12. cxd4 b6 13. Rc1 Bb7 14. f3 e6 15. Qd2 Qd7 16. Rc3 Rac8 17. Rfc1 Rxc3 18. Rxc3 Nc6 19. Bb1 Rd8 20. Rd3 Ba6 21. Ra3 Bxe2 22. Qxe2 Bxd4 23. Rd3 Bxe3+ 24. Qxe3 Nd4 25. Qd2 Qb5 26. Bc2 Qc5 27. Kf1 Qc4 28. Kg1 Qxa2 29. Qc3 Ne2+ 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.16"]
[Round "1"]
[White "Valencia, Oscar"]
[Black "Husbands, Orlando"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1728"]
[BlackElo "2234"]
[PlyCount "83"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 a6 5. Bf4 dxc4 6. a4 Nd5 7. Bg3 Qa5 8. e4 Nxc3 9. Qd2 e6 10. bxc3 b5 11. Ne5 Be7 12. Be2 0-0 13. 0-0 Qd8 14. Rfd1 Bb7 15. Qb2 Qc8 16. Rdb1 Ra7 17. Bxc4 Nd7 18. Nxd7 Qxd7 19. axb5 c5 20. Rd1 cxd4 21. Rxd4 Qc8 22. bxa6 Ba8 23. Be2 Bc5 24. Rc4 Qc6 25. Ra5 Qb6 26. Rb5 Qxa6 27. Rcxc5 Bxe4 28. h3 h6 29. Rb4 Bd3 30. Bxd3 Qxd3 31. Rd4 Qg6 32. Qb6 Ra1+ 33. Kh2 Kh7 34. Qb7 Rc1 35. Qe4 f5 36. Qe3 Rc2 37. Rc6 Rf6 38. Be5 Rf7 39. Rdd6 f4 40. Bxf4 Qf5 41. Bg3 Rf6 42. Qd3 1-0

