[Event "Buenos Aires CC Argentino op"]
[Site "Buenos Aires"]
[Date "2014.05.05"]
[Round "3"]
[White "Natan, Isaac"]
[Black "Bustamante, Leonidas"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1641"]
[BlackElo "2125"]
[PlyCount "50"]
[EventDate "2014.04.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 f5 2. b3 Nf6 3. Bb2 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 d6 7. c4 e5 8. d3 Nc6 9. e3 f4 10. exf4 exf4 11. Qd2 Ng4 12. d4 Qe8 13. h3 Nh6 14. d5 Ne5 15. Bxe5 dxe5 16. Nc3 fxg3 17. fxg3 Qg6 18. Qe1 Bf5 19. Nxe5 Qd6 20. Qe3 Bf6 21. Ng4 Bxg4 22. Rxf6 Qxf6 23. hxg4 Rae8 24. Qd2 Nxg4 25. Rf1 Qb6+ 0-1

[Event "Paraguay Gran Prix U2300 08"]
[Site "Paraguay"]
[Date "2013.08.28"]
[Round "8.10"]
[White "Natan, Isaac"]
[Black "Carbone, Jose Maria"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1638"]
[BlackElo "1954"]
[PlyCount "74"]
[EventDate "2013.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 f5 3. g3 Nf6 4. Bg2 c6 5. Nc3 d5 6. cxd5 cxd5 7. 0-0 Nc6 8. d3 Bd6 9. a3 a6 10. b4 0-0 11. Bb2 Bd7 12. Rc1 b5 13. e3 Qe7 14. Nd2 Ne5 15. Nb3 Rac8 16. Ne2 Rxc1 17. Qxc1 Nxd3 18. Qd2 Nxb2 19. Qxb2 Rc8 20. Rc1 Ne4 21. Bxe4 fxe4 22. Rxc8+ Bxc8 23. Ned4 Qc7 24. Na5 Bd7 25. Nab3 Qc4 26. Kg2 e5 27. Ne2 Bg4 28. Ng1 Bd1 29. Na1 h6 30. Qd2 Ba4 31. Ne2 Qd3 32. Qb2 Bd1 33. Ng1 d4 34. exd4 exd4 35. Qa2+ Qc4 36. Qd2 Ba4 37. Ne2 Be5 0-1

[Event "Paraguay Gran Prix U2300 08"]
[Site "Paraguay"]
[Date "2013.08.12"]
[Round "2.8"]
[White "Natan, Isaac"]
[Black "Brukman, Sergio"]
[Result "0-1"]
[ECO "D34"]
[WhiteElo "1638"]
[BlackElo "2026"]
[PlyCount "36"]
[EventDate "2013.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. d4 Be7 6. g3 0-0 7. Bg2 c5 8. 0-0 Nc6 9. e3 Bg4 10. dxc5 Bxc5 11. Qb3 Qd7 12. Rd1 Qf5 13. Nh4 Bxd1 14. Qxd1 Qe6 15. a3 Rad8 16. b4 d4 17. exd4 Bxd4 18. Qc2 Qe1+ 0-1

[Event "Buenos Aire Argentino CC"]
[Site "Buenos Aires"]
[Date "2013.06.17"]
[Round "2.4"]
[White "Natan, Isaac"]
[Black "Sammartino, Gabriel"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "1805"]
[BlackElo "1980"]
[PlyCount "59"]
[EventDate "2013.06.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. e3 Bb7 7. Ne2 d6 8. Ng3 Nbd7 9. Qc2 0-0 10. f3 c5 11. Bd3 Rc8 12. Qf2 Ba6 13. Qe2 Qc7 14. d5 exd5 15. cxd5 Bxd3 16. Qxd3 c4 17. Qd2 Nc5 18. 0-0 Nb3 19. Qd1 Nxa1 20. Nf5 Nb3 21. e4 Qd7 22. Bf4 Ne8 23. Qe1 f6 24. Qg3 Rd8 25. Bh6 Kh8 26. Bf4 Nc5 27. Nd4 Nd3 28. Ne6 Nc7 29. Nxd8 Qxd8 30. Bd2 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.22"]
[Round "9"]
[White "Nisental, Enrique Moises"]
[Black "Natan, Isaac"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1471"]
[BlackElo "1655"]
[PlyCount "79"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nf3 0-0 6. Be3 Bg4 7. Qd2 Nc6 8. h3 Bxf3 9. gxf3 Nd7 10. 0-0-0 Na5 11. Be2 b6 12. Bh6 c5 13. Bxg7 Kxg7 14. Rdg1 Rc8 15. h4 h5 16. b3 Qc7 17. Nb5 Qd8 18. Nxa7 Ra8 19. dxc5 Rxa7 20. cxd6 Kh7 21. Kb2 Re8 22. Qd4 exd6 23. f4 Qf6 24. Qxf6 Nxf6 25. f3 Rc7 26. Rg2 Nb7 27. Rhg1 Rg8 28. e5 dxe5 29. fxe5 Nd5 30. Rg5 Nf4 31. Bf1 Nc5 32. R5g3 Nce6 33. c3 Re8 34. Kc2 Nd4+ 35. Kd2 Nf5 36. Ke1 Nxg3 37. Rxg3 Rxc3 38. Bc4 Rc1+ 39. Kf2 Rc3 40. Bxf7 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.21"]
[Round "8"]
[White "Natan, Isaac"]
[Black "Chaparro Diaz, Valentina"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1655"]
[PlyCount "56"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. c4 Bc5 4. e3 Nf6 5. Nc3 d6 6. Na4 Bf5 7. Nxc5 dxc5 8. d3 Qe7 9. e4 Be6 10. a3 0-0 11. Nf3 Bg4 12. Qc2 Bxf3 13. gxf3 a6 14. h4 b5 15. 0-0-0 Nd4 16. Bxd4 cxd4 17. Kb2 c6 18. Be2 a5 19. Rdg1 a4 20. b4 c5 21. Qd2 Rab8 22. Ka2 bxc4 23. dxc4 cxb4 24. axb4 Rxb4 25. Rb1 Rb3 26. Rxb3 axb3+ 27. Kxb3 Rb8+ 28. Kc2 Qa3 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.20"]
[Round "7"]
[White "Natan, Isaac"]
[Black "Denon, Nicole"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "1655"]
[BlackElo "1726"]
[PlyCount "62"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 exd5 5. e3 c6 6. Be2 Bd6 7. 0-0 0-0 8. a3 a5 9. d4 Re8 10. Bd2 Ne4 11. g3 Bh3 12. Re1 Qf6 13. Bf1 Bg4 14. Be2 Bxf3 15. Bxf3 Nxd2 16. Bxd5 cxd5 17. Qxd2 Qg5 18. Rac1 Nc6 19. Nb5 Rad8 20. Rc2 Re6 21. Rec1 h5 22. h4 Qg4 23. Qe1 Rg6 24. Nxd6 Rdxd6 25. Kh2 Rde6 26. Qd2 Re4 27. Rf1 Qxh4+ 28. Kg2 Qg5 29. Rg1 h4 30. Kf1 Qf5 31. Ke2 Nxd4+ 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.18"]
[Round "6"]
[White "Torres, Fernando"]
[Black "Natan, Isaac"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2004"]
[BlackElo "1655"]
[PlyCount "44"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be7 8. Be2 0-0 9. 0-0 b6 10. f4 Bb7 11. Bf3 Qc7 12. Qe1 Nbd7 13. Be3 Rac8 14. Rd1 Bc6 15. f5 Qb7 16. Bg5 b5 17. axb5 Bxb5 18. Nxb5 Qxb5 19. Rf2 Qb6 20. Kh1 Rfe8 21. g4 Nxe4 22. Bxe4 Bxg5 1-0

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.17"]
[Round "5"]
[White "Natan, Isaac"]
[Black "Sammartino, Gabriel"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "1655"]
[BlackElo "1908"]
[PlyCount "65"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 e6 6. 0-0 Nge7 7. e3 0-0 8. d4 cxd4 9. exd4 d5 10. cxd5 Nxd5 11. a3 h6 12. Be3 Nxe3 13. fxe3 Ne7 14. Rc1 Nf5 15. Re1 a6 16. Qb3 Rb8 17. Ne2 b5 18. Nf4 Bb7 19. Kh1 Be4 20. Nd3 Qd6 21. Nc5 Bd5 22. Qd1 Ba8 23. b4 Rfd8 24. Nd3 Rbc8 25. Nfe5 Bxg2+ 26. Kxg2 Rxc1 27. Qxc1 Rf8 28. Qc5 Qb8 29. Nd7 Qa8+ 30. Kf2 Rc8 31. Qb6 Rc2+ 32. Re2 Rxe2+ 33. Kxe2 1/2-1/2

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.15"]
[Round "4"]
[White "Segarra Marinetti, Melany"]
[Black "Natan, Isaac"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "1655"]
[PlyCount "59"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 0-0 5. e4 d6 6. Be2 h6 7. Bf4 Nbd7 8. 0-0 Nh5 9. Be3 e5 10. c3 b6 11. Ne1 Ndf6 12. Nd3 Ba6 13. Nb4 Bxe2 14. Qxe2 c5 15. Nc6 Qe8 16. d5 Nf4 17. Qd1 b5 18. a4 bxa4 19. f3 Qd7 20. Nc4 Kh7 21. Rxa4 Ng8 22. Qc2 Ne7 23. N4a5 f5 24. b4 cxb4 25. Rxb4 Rfc8 26. Rfb1 fxe4 27. fxe4 Nxc6 28. dxc6 Rxc6 29. Nxc6 Qxc6 30. Rb7 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.13"]
[Round "2"]
[White "Natan, Isaac"]
[Black "Benedetti, Antonella"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1655"]
[BlackElo "2028"]
[PlyCount "48"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 d6 3. g3 f5 4. d3 Nf6 5. Bg2 Be7 6. e3 0-0 7. Nge2 c6 8. 0-0 Qe8 9. f4 Ng4 10. h3 Nh6 11. e4 Qh5 12. fxe5 dxe5 13. Bxh6 Qxh6 14. Kh2 f4 15. Qc1 Bg5 16. gxf4 exf4 17. Rf3 Bg4 18. Qf1 Nd7 19. Kg1 Bxf3 20. Bxf3 Rf6 21. Nd4 Qg6 22. Nf5 Qe8 23. Rd1 Rd8 24. d4 g6 0-1

[Event "Buenos Aires Duchamp op 1st"]
[Site "Buenos Aires"]
[Date "2011.09.12"]
[Round "1"]
[White "Cativelli, Gerardo"]
[Black "Natan, Isaac"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2178"]
[BlackElo "1655"]
[PlyCount "63"]
[EventDate "2011.09.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. Be2 0-0 7. 0-0 c5 8. c3 a6 9. a4 b6 10. Qb3 Bb7 11. Nbd2 Rc8 12. Rfc1 h6 13. Qd1 d5 14. Qf1 c4 15. Qd1 Ne4 16. Nxe4 dxe4 17. Nd2 Bd5 18. Qc2 f5 19. f3 Kh7 20. fxe4 fxe4 21. Nxe4 Nf6 22. Nd2 Bf7 23. e4 b5 24. axb5 axb5 25. Rf1 Ra8 26. Bh2 Qb6 27. Kh1 Ra6 28. Rae1 Kg8 29. Bg1 Qc7 30. e5 Nd5 31. Ne4 g5 32. Nc5 1-0

