[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "7"]
[White "Faroppa, Martin"]
[Black "Rivero, Matias"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "41"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. d3 Nf6 4. Nc3 Bg4 5. Nf3 Nc6 6. h3 Bxf3 7. gxf3 Nd4 8. fxe5 dxe5 9. Bg5 Bc5 10. Nd5 h6 11. Bh4 c6 12. Nxf6+ gxf6 13. c3 Nb5 14. Be2 Qb6 15. b4 Nxc3 16. bxc5 Nxd1 17. cxb6 axb6 18. Bxd1 Rg8 19. Bxf6 Rg2 20. Bb3 Kd7 21. Bxe5 1-0

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "6"]
[White "Ferrario, Jorge"]
[Black "Rivero, Matias"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "25"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Be2 Bc5 4. 0-0 Nf6 5. Nc3 d6 6. Na4 Bb6 7. Nxb6 axb6 8. Re1 0-0 9. d3 Bd7 10. Qd2 Qe7 11. Qg5 Ng4 12. Qxe7 Nxe7 13. Rd1 0-1

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "5"]
[White "Rivero, Matias"]
[Black "Feijoo, Francisco"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "25"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. d3 d6 6. 0-0 d5 7. exd5 Nxd5 8. Nxd5 Be6 9. Ng5 Bxd5 10. Bxd5 Qxd5 11. Re1 0-0 12. Qh5 Qd4 13. Qxh7# 1-0

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "1"]
[White "Driz, Ivan"]
[Black "Rivero, Matias"]
[Result "1-0"]
[ECO "C84"]
[PlyCount "69"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Bd7 5. 0-0 Nf6 6. d3 Be7 7. Re1 0-0 8. Nbd2 a6 9. Ba4 d5 10. Bxc6 Bxc6 11. Nxe5 dxe4 12. Nxc6 bxc6 13. Nxe4 Nxe4 14. Rxe4 Bg5 15. Bxg5 Qxg5 16. Rg4 Qe7 17. Qd2 Qf6 18. Qf4 Qxf4 19. Rxf4 Rfe8 20. Rc4 Re7 21. Rxc6 Rae8 22. Kf1 Re2 23. Rxa6 Rxb2 24. Re1 Rxe1+ 25. Kxe1 Rb8 26. a4 Kf8 27. a5 Rb3 28. Rc6 Ke8 29. Rxc7 Rb5 30. a6 Kd8 31. Rxf7 Rb6 32. a7 Ra6 33. Rf8+ Kc7 34. a8Q Rxa8 35. Rxa8 1-0

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "3"]
[White "Martin, Diego"]
[Black "Rivero, Matias"]
[Result "0-1"]
[ECO "C20"]
[PlyCount "18"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Qf3 Nf6 3. Qb3 Nxe4 4. Nh3 Nc5 5. Qf3 d5 6. d3 Bd6 7. Ng5 0-0 8. Qh5 h6 9. Qf3 hxg5 0-1

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "2"]
[White "Rivero, Matias"]
[Black "Deledon, Federico"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "34"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 Ng4 6. Ng5 Nxf2 7. Qe2 Nxh1 8. Nxf7 Qh4+ 9. g3 Nxg3 10. hxg3 Qxg3+ 11. Qf2 Qxf2+ 12. Kd1 Rf8 13. Ng5 Qf1+ 14. Kd2 Rf2+ 15. Ne2 Rxe2+ 16. Kc3 Qe1+ 17. Kb3 Qb4# 0-1

[Event "Buenos Aires Najdorf U08/10"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "4"]
[White "Rivero, Matias"]
[Black "Freixas, Pablo"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "13"]
[EventDate "2004.10.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d3 e6 5. Be3 Nc6 6. Be2 Be7 7. 0-0 1-0

