[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.26"]
[Round "9"]
[White "Guzman, Oswaldo"]
[Black "Valdez, Alvaro"]
[Result "1/2-1/2"]
[ECO "B40"]
[PlyCount "43"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. Be2 a6 5. 0-0 Be7 6. a4 d6 7. d4 cxd4 8. cxd4 e5 9. Nc3 Nf6 10. h3 0-0 11. Be3 Re8 12. Qb3 h6 13. d5 Nb8 14. Qa3 b6 15. b4 Nbd7 16. Rfc1 Bb7 17. Rc2 Rc8 18. Nd2 Rf8 19. Qc1 Nh7 20. Kh1 Bg5 21. Bxg5 Nxg5 22. Nc4 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.25"]
[Round "8"]
[White "Valdez, Alvaro"]
[Black "Chavarro, Jeffry"]
[Result "1-0"]
[ECO "A46"]
[BlackElo "2035"]
[PlyCount "63"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 c5 2. e3 cxd4 3. exd4 g6 4. Nf3 Bg7 5. c3 Nf6 6. Bd3 0-0 7. 0-0 d6 8. Re1 Nc6 9. Bg5 Re8 10. Qc2 Bd7 11. a3 Rc8 12. Nbd2 h6 13. Bh4 Nd5 14. Bc4 Nb6 15. Ba2 Bf5 16. Qb3 d5 17. Bb1 Be6 18. Bxg6 Qd7 19. Bd3 Kh8 20. Bg3 Rg8 21. Qd1 Rcf8 22. Bb5 Bg4 23. Qc2 Nc4 24. Nxc4 Bxf3 25. gxf3 dxc4 26. Bxc4 h5 27. Kh1 e6 28. Qd1 Na5 29. f4 Qc6+ 30. d5 exd5 31. Qxh5+ Bh6 32. Bxd5 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.24"]
[Round "7"]
[White "Zuleta, Juan Esteban"]
[Black "Valdez, Alvaro"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1916"]
[PlyCount "86"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bg5 Bb4 7. Nxc6 Bxc3+ 8. bxc3 bxc6 9. e5 Qa5 10. Qd4 Ne4 11. Be3 Qxc3+ 12. Qxc3 Nxc3 13. Kd2 Nd5 14. Bc5 f6 15. Bd6 fxe5 16. Bxe5 Nf6 17. f3 Ke7 18. Re1 d6 19. Ba1 a5 20. g4 Bd7 21. Bd3 h6 22. f4 Rhb8 23. Bc3 c5 24. a4 g5 25. fxg5 hxg5 26. Rhf1 e5 27. h3 Be6 28. Rb1 c4 29. Bf5 Bxf5 30. Rxb8 Rxb8 31. Bxe5 dxe5 32. Rxf5 Ke6 33. Kc3 Rh8 34. Kxc4 Rxh3 35. Rxg5 Rg3 36. Kb5 Rxg4 37. Rxg4 Nxg4 38. c4 e4 39. c5 e3 40. c6 e2 41. Kxa5 e1Q+ 42. Kb6 Kd6 43. a5 Qb4+ 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.23"]
[Round "5"]
[White "Valdez, Alvaro"]
[Black "Duque, Juan Camilo"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "1972"]
[PlyCount "78"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. e3 g6 5. Nbd2 Bg7 6. Be2 0-0 7. 0-0 c5 8. c3 b6 9. Qc2 Bb7 10. Rad1 Qc7 11. Rfe1 Rac8 12. Qb1 Rfe8 13. h3 a6 14. a4 Qc6 15. Qc2 cxd4 16. exd4 h6 17. Bh4 g5 18. Bg3 Nh5 19. Nf1 Ndf6 20. Bh2 Nd5 21. Ne3 Ndf4 22. d5 Qc5 23. Bd3 Bxd5 24. Bxa6 Bxf3 25. Bxc8 Bxd1 26. Rxd1 Qxc8 27. Nf5 Bf8 28. Re1 e6 29. Nd4 Bg7 30. Nb5 Be5 31. f3 Qc4 32. Re4 Qc5+ 33. Kh1 f5 34. Re1 Ng6 35. g4 Ng3+ 36. Bxg3 Bxg3 37. Rd1 Qe3 38. Kg2 Bf4 39. Rd3 Qe1 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.23"]
[Round "6"]
[White "Valdez, Alvaro"]
[Black "Parra Meza, Brayan"]
[Result "1-0"]
[ECO "D02"]
[BlackElo "1807"]
[PlyCount "64"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 Nf6 4. e3 Be7 5. a3 Nbd7 6. Bd3 0-0 7. 0-0 b6 8. Re1 Bb7 9. Nbd2 c5 10. c3 Rc8 11. Rc1 Nh5 12. Bg3 Nhf6 13. Bb1 cxd4 14. exd4 Re8 15. Qc2 Nf8 16. Ne5 Bd6 17. Ndf3 Ne4 18. Qd1 Nxg3 19. hxg3 f6 20. Nd3 Ba6 21. Qd2 Qd7 22. Re3 Re7 23. Rce1 Rce8 24. Bc2 Qc7 25. Nb4 Bb7 26. R3e2 b5 27. Nd3 Kh8 28. b4 a5 29. Ra1 axb4 30. axb4 e5 31. Nc1 e4 32. Nh2 f5 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.22"]
[Round "4"]
[White "Ceron, Edgar Ivan"]
[Black "Valdez, Alvaro"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2019"]
[PlyCount "107"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. 0-0 0-0 8. Nc3 d5 9. Ne5 Nbd7 10. Bg5 Ne4 11. Bxe7 Qxe7 12. Qc2 Nxc3 13. Qxc3 Nxe5 14. dxe5 c5 15. e3 Rad8 16. Rad1 Rd7 17. cxd5 exd5 18. Bh3 Rc7 19. f4 Rd8 20. Rd2 b5 21. Qa5 a6 22. Rfd1 g6 23. Kf2 g5 24. Bf5 gxf4 25. gxf4 Qh4+ 26. Kg1 Rc6 27. Rg2+ Kh8 28. Rg4 Rg8 29. Rxg8+ Kxg8 30. Qe1 Qh5 31. Bc2 Rh6 32. Rd2 Kh8 33. Qg3 Qh4 34. Rg2 Qxg3 35. Rxg3 Re6 36. Rh3 h6 37. Bf5 Rb6 38. e6 fxe6 39. Rxh6+ Kg7 40. Rxe6 Rxe6 41. Bxe6 Kf6 42. Bg4 b4 43. Kf2 a5 44. Ke2 a4 45. Kd2 Bc6 46. Bf3 c4 47. a3 bxa3 48. bxa3 Kf5 49. h4 Kf6 50. Bg4 Be8 51. Kc3 Ke7 52. Kd4 Kd6 53. Bd1 Bd7 54. Kc3 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.21"]
[Round "3"]
[White "Valdez, Alvaro"]
[Black "Carlo, Daniel"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "2044"]
[PlyCount "116"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. e3 Bf5 5. a3 e6 6. c4 a6 7. c5 Nbd7 8. h3 b6 9. b4 Ne4 10. Bd3 bxc5 11. bxc5 Qa5+ 12. Nbd2 Nxf2 13. Kxf2 Bxd3 14. Qb3 Qb5 15. Qc3 Bg6 16. a4 Qb7 17. Nh4 Bh5 18. Rhb1 Qc8 19. Rb3 Be7 20. Nhf3 Bg6 21. Ra2 Bd8 22. Ne5 Nxe5 23. Bxe5 0-0 24. Rab2 Bc7 25. Nf3 f6 26. Bxc7 Qxc7 27. Rb7 Qd8 28. R7b6 Be8 29. Qd3 Qc8 30. R2b3 e5 31. Qb1 e4 32. Nh2 f5 33. Kg1 Bh5 34. Qf1 a5 35. Qf4 Bd1 36. Ra3 Rb8 37. Qf1 Rxb6 38. cxb6 Bc2 39. Qe1 Qa6 40. Qc3 Qd3 41. Qb2 Qd1+ 42. Nf1 Bxa4 43. b7 Bb5 44. Rxa5 Qxf1+ 45. Kh2 f4 46. Ra8 fxe3 47. b8Q Rxb8 48. Rxb8+ Kf7 49. Rb7+ Kg6 50. Qb4 Qf4+ 51. Kg1 e2 52. h4 Qf1+ 53. Kh2 e1Q 54. Rxg7+ Kxg7 55. Qe7+ Qf7 56. Qg5+ Qg6 57. Qe7+ Kh6 58. Qf8+ Kh5 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.20"]
[Round "1"]
[White "Duran Vega, Sergio"]
[Black "Valdez, Alvaro"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2082"]
[PlyCount "89"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 gxf6 12. Bd3 Be6 13. 0-0 f5 14. c4 bxc4 15. Nxe7 Qxe7 16. Nxc4 f4 17. Qa4 Bd7 18. Qa3 Rg8 19. Nxd6+ Kf8 20. Nf5 Qxa3 21. bxa3 Nd4 22. Rfd1 Nxf5 23. exf5 Bc6 24. g3 Rg5 25. f6 Bf3 26. Re1 Re8 27. Bxa6 Re6 28. Be2 Bxe2 29. Rxe2 Rxf6 30. Re4 h5 31. Rae1 Rff5 32. a4 h4 33. a5 fxg3 34. fxg3 hxg3 35. a6 gxh2+ 36. Kh1 Rf6 37. Ra4 Rgg6 38. a7 Ra6 39. a8Q+ Rxa8 40. Rxa8+ Kg7 41. Rxe5 Kf6 42. Rh5 Ke7 43. a4 Kd7 44. a5 Kc7 45. a6 1-0

