[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.05.09"]
[Round "6"]
[White "Pineda Polanco, Adolfo"]
[Black "Valenzuela, Benjamin"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "2256"]
[PlyCount "47"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. cxd5 exd5 6. e3 Bf5 7. Qb3 Bc8 8. Bxf6 Bxf6 9. Nxd5 0-0 10. Nxf6+ Qxf6 11. Nf3 Qe6 12. Qxe6 Bxe6 13. Bd3 h6 14. 0-0 Nd7 15. Rfc1 c6 16. b4 Bd5 17. Nd2 Rfe8 18. a4 Nf6 19. h3 Kh8 20. b5 Rac8 21. Bc4 cxb5 22. Bxb5 Rxc1+ 23. Rxc1 Rb8 24. Rc7 0-1

[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.05.02"]
[Round "5"]
[White "Vargas Maliqueo, Ivan Patricio"]
[Black "Valenzuela, Benjamin"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "2266"]
[PlyCount "38"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. Nc3 d5 5. cxd5 Nxd5 6. e3 a6 7. Bd3 Nc6 8. 0-0 Be7 9. Ne4 cxd4 10. exd4 Ndb4 11. Bb1 0-0 12. a3 Nd5 13. Qd3 f5 14. Ng3 Qd6 15. Re1 Nf4 16. Bxf4 Qxf4 17. Ba2 Qd6 18. Nxf5 Rxf5 19. Qxf5 Kh8 1-0

[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.04.25"]
[Round "4"]
[White "Valenzuela, Benjamin"]
[Black "Norambuena Hernandez, Marco Antonio"]
[Result "0-1"]
[ECO "D30"]
[BlackElo "1823"]
[PlyCount "53"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. e3 Nbd7 5. Bd3 dxc4 6. Bxc4 Nb6 7. Bb3 Bd6 8. Nc3 a6 9. 0-0 0-0 10. e4 Bb4 11. Bc2 h6 12. e5 Nfd5 13. Qd3 f5 14. exf6 Nxf6 15. Qg6 Qe8 16. Qg3 Bd6 17. Ne5 Nh5 18. Qh4 Bxe5 19. Bh7+ Kxh7 20. Qe4+ Qg6 21. Qxg6+ Kxg6 22. dxe5 Nd5 23. Na4 b6 24. b3 Bb7 25. Ba3 Rf7 26. Rac1 Nhf4 27. g3 0-1

[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.04.17"]
[Round "3"]
[White "Nunez, Jose"]
[Black "Valenzuela, Benjamin"]
[Result "1-0"]
[ECO "D56"]
[WhiteElo "2072"]
[PlyCount "51"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. c4 0-0 5. Nc3 d5 6. e3 h6 7. Bh4 c5 8. Be2 Nc6 9. 0-0 Qd7 10. a3 b6 11. cxd5 exd5 12. Bb5 Qe6 13. Bxc6 Qxc6 14. Ne5 Qc7 15. Nb5 Qd8 16. Nc6 Qd7 17. Nxe7+ Qxe7 18. Qf3 Bg4 19. Qxg4 Nxg4 20. Bxe7 Rfc8 21. h3 a6 22. Nd6 Rc7 23. Bh4 Nf6 24. Bxf6 gxf6 25. Rac1 Rd8 26. Nf5 1-0

[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.04.04"]
[Round "2"]
[White "Valenzuela, Benjamin"]
[Black "Echeverria Ojeda, Eric"]
[Result "0-1"]
[ECO "E90"]
[PlyCount "62"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 0-0 5. e4 d6 6. Bd3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. Be3 Nd7 10. Ne2 e5 11. d5 Ne7 12. 0-0 f5 13. exf5 Nxf5 14. Ng3 Nxe3 15. Qxe3 Qh4 16. Ne2 Bh6 17. Qg3 Qf6 18. Rab1 Bf4 19. Qg4 Rf7 20. Qe6 Nc5 21. Qxf6 Rxf6 22. Nxf4 Rxf4 23. Be2 Raf8 24. f3 e4 25. b4 exf3 26. gxf3 Nd7 27. Rb3 Rh4 28. Kg2 Rff4 29. Rc1 Rd4 30. Kg3 g5 31. Rc2 a6 0-1

[Event "Santiago CC Puente Alto op"]
[Site "Santiago de Chile"]
[Date "2004.03.28"]
[Round "1"]
[White "Diaz, Robert"]
[Black "Valenzuela, Benjamin"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2245"]
[PlyCount "39"]
[EventDate "2004.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 b6 6. Bd3 Bb7 7. 0-0 g6 8. Na3 Bg7 9. Nb5 Bf8 10. Bg5 Qd7 11. dxc5 bxc5 12. c4 a6 13. cxd5 exd5 14. Nc3 Bg7 15. Na4 Rb8 16. Nxc5 Qc8 17. Qa4 Kf8 18. Rac1 Nge7 19. Bxe7+ Nxe7 20. Nd7+ 1-0

