[Event "Rossetto Memorial"]
[Site "Buenos Aires"]
[Date "2004.12.23"]
[Round "9"]
[White "De las Heras, Juan Carlos"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2247"]
[BlackElo "2344"]
[PlyCount "53"]
[EventDate "2004.12.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Bd3 cxd4 7. cxd4 Be7 8. Nc3 Qd8 9. 0-0 0-0 10. a3 b6 11. Qe2 Bb7 12. Bf4 Nbd7 13. Ng5 g6 14. Nf3 a6 15. Bh6 Re8 16. Rad1 b5 17. Rfe1 Nb6 18. Ne5 Qd6 19. Bb1 Nbd5 20. Ne4 Nxe4 21. Bxe4 Bf8 22. Qd2 Bxh6 23. Qxh6 Qf8 24. Qd2 Qe7 25. Qh6 Qf8 26. Qd2 Qe7 27. Qh6 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.13"]
[Round "9"]
[White "De las Heras, Juan Carlos"]
[Black "Michalowski, Basilio"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "2247"]
[PlyCount "50"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 Bg4 7. Qd2 e5 8. Nxc6 bxc6 9. Bg2 Qc8 10. h3 Be6 11. b3 Be7 12. Bb2 0-0 13. 0-0-0 a5 14. f4 a4 15. f5 axb3 16. cxb3 Bd7 17. g4 d5 18. Kb1 d4 19. Na4 c5 20. g5 Bxa4 21. gxf6 Bxf6 22. bxa4 Rxa4 23. Qe2 Qc6 24. Rd3 c4 25. Ra3 Rb4 0-1

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.12"]
[Round "8"]
[White "Acosta, Pablo Ismael"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C51"]
[WhiteElo "2129"]
[BlackElo "2247"]
[PlyCount "31"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bd6 6. a4 Nf6 7. d3 0-0 8. 0-0 Be7 9. Ne1 d5 10. exd5 Nxd5 11. f4 exf4 12. Bxf4 Be6 13. Bg3 Ne3 14. Qe2 Nxf1 15. Bxe6 Nxg3 16. hxg3 0-1

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.11"]
[Round "7"]
[White "De las Heras, Juan Carlos"]
[Black "Gil, Juan Manuel"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "2247"]
[PlyCount "52"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Qe2 Bc5 5. Nf3 d5 6. Bb3 0-0 7. 0-0 Bg4 8. h3 Bh5 9. g4 Nxg4 10. hxg4 Bxg4 11. Kg2 Qd6 12. Rg1 Nd7 13. Kf1 f5 14. exd5 Kh8 15. Be3 Rae8 16. Nbd2 cxd5 17. Bxc5 Nxc5 18. Qe3 f4 19. Qe2 Nxb3 20. axb3 Qg6 21. Ke1 h5 22. Ra5 Qc6 23. c3 a6 24. Kd1 b6 25. Rxa6 e4 26. dxe4 dxe4 0-1

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.10"]
[Round "6"]
[White "Gomez Baillo, Jorge H"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2438"]
[BlackElo "2247"]
[PlyCount "101"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nge7 7. Re1 d6 8. c3 0-0 9. Be3 Bd7 10. Qd2 Rc8 11. Bh6 Ne5 12. Nxe5 dxe5 13. Bxg7 Kxg7 14. Na3 Nc6 15. Rad1 Qe7 16. Nc4 b5 17. Ne3 h5 18. f4 f6 19. Qf2 Qd6 20. f5 g5 21. fxe6 Bxe6 22. Qf3 g4 23. Nf5+ Bxf5 24. Qxf5 Kh6 25. Rf1 Rc7 26. Rd2 Ne7 27. Qf2 Nc6 28. Qf5 Ne7 29. Qf2 Nc6 30. h3 Rg7 31. Qe3+ Kg6 32. Rff2 Ne7 33. Rd1 Rd8 34. Bf1 Rh8 35. Rh2 Kf7 36. h4 Kg6 37. Rf2 Rf7 38. Be2 Kg7 39. Rdf1 Rh6 40. Bd1 Rf8 41. a4 a6 42. axb5 axb5 43. Bb3 Rg6 44. Ra1 Qb6 45. Kh2 Rb8 46. Raf1 Rf8 47. Rd2 Rd8 48. Rdf2 Rf8 49. Ba2 Qd6 50. Bb3 Rd8 51. Rd1 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.08"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Julia, Ernesto"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2247"]
[BlackElo "2387"]
[PlyCount "40"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. c3 0-0 6. Bb3 d5 7. Qe2 dxe4 8. dxe4 Nd7 9. Bd5 Bf6 10. Be3 Nb6 11. Bxb6 axb6 12. Nbd2 Ne7 13. Bb3 Ng6 14. g3 c6 15. Nf1 b5 16. Ne3 Bh3 17. Ng1 Bd7 18. Nf3 Bh3 19. Ng1 Bd7 20. Nf3 Bh3 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.07"]
[Round "4"]
[White "Ruiz, Carlos"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C27"]
[BlackElo "2247"]
[PlyCount "71"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 4. d3 d6 5. Nf3 c6 6. h3 h6 7. a3 b5 8. Bb3 Na6 9. Ne2 Bb6 10. Ng3 Nc5 11. Ba2 Qe7 12. Qe2 Na4 13. Nh4 g6 14. c3 Be6 15. Bb1 Nc5 16. Bc2 Nb3 17. Bxb3 Bxb3 18. Be3 Nd7 19. Nf3 Be6 20. d4 Bc4 21. Qc2 Kf8 22. Nd2 Be6 23. 0-0 Kg7 24. Rfe1 f6 25. Kh2 h5 26. f4 h4 27. Nh1 c5 28. dxe5 dxe5 29. f5 Bf7 30. c4 b4 31. Nf3 bxa3 32. bxa3 g5 33. Nf2 Kh7 34. Ra2 Rad8 35. Ng4 Rhg8 36. Qa4 0-1

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.06"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Cuevas, Alex"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2247"]
[PlyCount "61"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 g6 3. Nf3 Bg7 4. Bf4 d6 5. e3 b6 6. Nbd2 Nh5 7. Bg5 h6 8. Bh4 d5 9. Ne5 Bb7 10. Bd3 Bxe5 11. dxe5 c5 12. f4 Qc7 13. Qg4 Rg8 14. 0-0 Nc6 15. e6 Nf6 16. exf7+ Kxf7 17. Qe2 Bc8 18. e4 dxe4 19. Nxe4 Nxe4 20. Bxe4 e6 21. Rad1 Bb7 22. f5 exf5 23. Bd5+ Kg7 24. Bxg8 Rxg8 25. Qe6 Bc8 26. Qf6+ Kh7 27. Bg3 Qb7 28. Rfe1 Rg7 29. Re8 Bd7 30. Rf8 Bc8 31. Rd6 1-0

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.05"]
[Round "2"]
[White "Ricardi, Pablo"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2540"]
[BlackElo "2247"]
[PlyCount "65"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. d4 c6 4. Nf3 Nbd7 5. g3 e5 6. Bg2 Be7 7. 0-0 0-0 8. Qc2 Re8 9. e4 Qc7 10. h3 a6 11. Be3 b5 12. cxb5 cxb5 13. Rac1 Bb7 14. Qb3 Qb8 15. dxe5 Nxe5 16. Nxe5 dxe5 17. a4 b4 18. Nd5 Nxd5 19. exd5 a5 20. Rfd1 Bd6 21. Bf1 Ba6 22. Bxa6 Rxa6 23. Rc6 Ra8 24. Qc4 e4 25. Kg2 Qd8 26. Bc5 Bxc5 27. Qxc5 Qd7 28. d6 Rad8 29. Rc7 Qxa4 30. Qd5 Rf8 31. Re1 Qe8 32. Rxe4 Rxd6 33. Rxe8 1-0

[Event "Buenos Aires Intercoop 29th"]
[Site "Buenos Aires"]
[Date "2003.09.13"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Morgado, Juan Sebastian"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "2247"]
[BlackElo "2278"]
[PlyCount "44"]
[EventDate "2003.08.23"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Be2 e6 8. 0-0 Ngf6 9. Nh4 Qc7 10. Nxg6 hxg6 11. c4 Bd6 12. f4 0-0-0 13. Qb3 c5 14. dxc5 Bxc5+ 15. Kh1 Rxh2+ 16. Kxh2 Rh8+ 17. Nh5 Nxh5 18. Bxh5 Rxh5+ 19. Kg3 Rg5+ 20. Kh2 Nf6 21. Qa4 Qd6 22. b4 Qd3 0-1

[Event "Buenos Aires Intercoop 29th"]
[Site "Buenos Aires"]
[Date "2003.??.??"]
[Round "6"]
[White "Anelli, Antonio"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2330"]
[BlackElo "2247"]
[PlyCount "82"]
[EventDate "2003.08.23"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. d4 c6 4. e4 e5 5. d5 Be7 6. h3 h5 7. Be3 Na6 8. Nf3 c5 9. Qd2 h4 10. Be2 Nh5 11. 0-0-0 Bf6 12. Kb1 Nc7 13. Nh2 a6 14. Ng4 Rb8 15. Nxf6+ Qxf6 16. Bg5 Qg6 17. Bxh4 Nf4 18. Bg3 Nxe2 19. Qxe2 b5 20. Ka1 bxc4 21. Qxc4 Rb4 22. Qe2 Nb5 23. Nxb5 axb5 24. a3 Qxe4 25. Rhe1 Qxe2 26. Rxe2 Rb3 27. Ka2 c4 28. f3 Bf5 29. Be1 Ke7 30. Rc1 Bd3 31. Rd2 Ra8 32. Rdd1 b4 33. Rxd3 Rxd3 34. Bxb4 Rc8 35. Kb1 Rxd5 36. Kc2 Rd3 37. Bc3 f6 38. Ra1 d5 39. b4 d4 40. Bd2 Rb3 41. Bc1 Ra8 0-1

[Event "Buenos Aires Intercoop 29th"]
[Site "Buenos Aires"]
[Date "2003.??.??"]
[Round "2"]
[White "Jarmoluk, Jorge E"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2114"]
[BlackElo "2247"]
[PlyCount "73"]
[EventDate "2003.08.23"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nf3 f6 6. g3 Nc6 7. Bg2 Nb4 8. Na3 c6 9. Bd2 Kc7 10. 0-0 Bg4 11. h3 Bh5 12. g4 Bf7 13. Rfc1 h5 14. g5 h4 15. Nc2 a5 16. a3 Nxc2 17. Rxc2 a4 18. Rd1 Ne7 19. Bb4 Ng6 20. Rcd2 Be6 21. e3 Kb6 22. Bf1 Bc5 23. Kg2 Bf5 24. Be2 Raf8 25. Ne1 fxg5 26. Bxc5+ Kxc5 27. Nd3+ Kb6 28. b4 e4 29. Nc5 Ne5 30. Nxa4+ Ka7 31. b5 g4 32. b6+ Kb8 33. hxg4 Nxg4 34. Nc5 Ne5 35. a4 Kc8 36. a5 h3+ 37. Kg3 1-0

[Event "Buenos Aires Intercoop 29th"]
[Site "Buenos Aires"]
[Date "2003.??.??"]
[Round "3"]
[White "Salaberry, Gustavo"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "A55"]
[BlackElo "2247"]
[PlyCount "74"]
[EventDate "2003.08.23"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 c6 4. e4 e5 5. Be2 Be7 6. Nf3 Nbd7 7. 0-0 a6 8. Rb1 b5 9. b4 0-0 10. a4 Bb7 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Qc2 a5 14. bxa5 b4 15. a6 Bxa6 16. Na2 c5 17. Be3 Bc8 18. Nc1 Bd7 19. Ra1 Bc6 20. f3 Nd7 21. Rd1 Qc7 22. Rd5 Nb6 23. a5 Nxd5 24. cxd5 Bb7 25. Nb3 Ba6 26. Bxa6 Rxa6 27. Qc4 Rfa8 28. Rc1 Rxa5 29. Qxb4 cxb4 30. Rxc7 Ra3 31. Rxe7 Rxb3 32. Bb6 Rb2 33. h4 Rd2 34. Rb7 h5 35. Bc7 Raa2 36. Bxe5 Rxg2+ 37. Kf1 f6 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.29"]
[Round "8.28"]
[White "Duarte, Leonardo"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2130"]
[BlackElo "2247"]
[PlyCount "76"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 c6 4. Bg2 Bf5 5. 0-0 e6 6. Nbd2 Be7 7. a4 Nbd7 8. c3 0-0 9. a5 Qc7 10. Ne1 d5 11. f3 c5 12. g4 Bg6 13. e4 e5 14. c4 dxe4 15. d5 exf3 16. Qxf3 e4 17. Qe2 Qe5 18. Nb1 Bd6 19. Bf4 Qe7 20. Bg5 Rad8 21. Nc3 h6 22. Bh4 Qe5 23. Bg3 Qd4+ 24. Kh1 Bxg3 25. hxg3 Ne5 26. a6 bxa6 27. Nc2 Qxc4 28. Qxc4 Nxc4 29. b3 Nd2 30. Rxf6 gxf6 31. Ne3 Rb8 32. Rxa6 Rxb3 33. Ncd1 Rd3 34. Kg1 Nc4 35. Kf2 Nxe3 36. Nxe3 Rb8 37. Ra2 Rbb3 38. Nf5 Bxf5 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.28"]
[Round "6.29"]
[White "Bernal, Gustavo"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2161"]
[BlackElo "2247"]
[PlyCount "59"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 c6 4. Nc3 Bf5 5. Nh4 Bd7 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. h3 e5 10. dxe5 dxe5 11. Be3 Na6 12. Nf3 Re8 13. Ng5 Qc7 14. Rc1 Rad8 15. Qb3 h6 16. Nb5 cxb5 17. cxb5 hxg5 18. bxa6 Qa5 19. axb7 Be6 20. Qa3 Qxa3 21. bxa3 e4 22. Bxa7 Bd5 23. Rb1 Nd7 24. Rfd1 Bxa2 25. Rxd7 Rxd7 26. b8Q Rxb8 27. Rxb8+ Kh7 28. Be3 f5 29. Bxg5 Bd5 30. Bf1 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.28"]
[Round "7.22"]
[White "De las Heras, Juan Carlos"]
[Black "Manrique, Leonardo"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2247"]
[BlackElo "2067"]
[PlyCount "66"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 e5 6. d4 cxd4 7. cxd4 Nxd4 8. Nxd4 exd4 9. e5 Ne7 10. Qxd4 0-0 11. Bf4 Nc6 12. Qd6 Re8 13. Re1 Re6 14. Qd5 d6 15. Nc3 Qe8 16. Ne4 dxe5 17. Bg5 h6 18. Be3 a6 19. Ba4 Re7 20. Rac1 Be6 21. Qc5 b5 22. Bxh6 bxa4 23. Bxg7 Kxg7 24. Qxc6 Qxc6 25. Rxc6 Bxa2 26. Nc5 Bb3 27. f3 Bc4 28. Ra1 Bb5 29. Rd6 Rc7 30. Nxa4 Rc2 31. Nc3 Rb8 32. Rd5 Bc4 33. Rxe5 Rbxb2 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.27"]
[Round "5.20"]
[White "De las Heras, Juan Carlos"]
[Black "Benko, Francisco"]
[Result "0-1"]
[ECO "C80"]
[WhiteElo "2247"]
[BlackElo "2116"]
[PlyCount "63"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Ne6 9. d4 Be7 10. c3 0-0 11. f4 f5 12. Be3 Bd6 13. Qb3 Bxe5 14. dxe5 Qe7 15. Nd2 g6 16. Nf3 Kh8 17. Rad1 Bd7 18. Rd2 Rad8 19. Qa4 a5 20. Red1 Be8 21. Rxd8 Nxd8 22. Qd4 Ne6 23. Qd2 c5 24. Bf2 Bc6 25. Bh4 Qe8 26. Ng5 h6 27. Nxe6 Qxe6 28. Bd8 Rf7 29. Bxc7 Rd7 30. Bd6 Qxa2 31. Qe2 Qe6 32. Qa6 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.26"]
[Round "4.6"]
[White "Pierrot, Juan Facundo"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2423"]
[BlackElo "2247"]
[PlyCount "65"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 Nf6 7. h3 0-0 8. 0-0 Re8 9. c4 c6 10. Nc3 Nbd7 11. Re1 Nf8 12. Bf4 a6 13. b4 Ng6 14. Bh2 Bf8 15. Qd2 Rxe1+ 16. Rxe1 a5 17. b5 a4 18. a3 Bd7 19. bxc6 bxc6 20. Bc2 Be6 21. Qd3 Qa5 22. Rb1 Nd7 23. Rb4 d5 24. c5 Be7 25. Rxa4 Qd8 26. Na2 Rc8 27. Nb4 Bxc5 28. dxc5 Nxc5 29. Qd1 Nxa4 30. Bxa4 c5 31. Nc6 Qb6 32. Nfe5 Nxe5 33. Ne7+ 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.25"]
[Round "3.10"]
[White "De las Heras, Juan Carlos"]
[Black "Filgueira, Hernan"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "2247"]
[BlackElo "2371"]
[PlyCount "83"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be2 Qc7 6. 0-0 a6 7. Nc3 Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. f4 d5 11. e5 Nd7 12. Na4 Be7 13. Bd3 c5 14. c4 d4 15. Bd2 Bb7 16. b3 g5 17. Qh5 gxf4 18. Bxf4 Rg8 19. Rf2 0-0-0 20. Re1 Qc6 21. Be4 Qxe4 22. Rxe4 Bxe4 23. Qxf7 Bh4 24. Bg3 Bxg3 25. hxg3 Rde8 26. Qf4 Bc6 27. Nb2 Rg6 28. b4 Reg8 29. bxc5 Rxg3 30. Qxd4 Bxg2 31. Rf4 Bc6+ 32. Kf1 Rh3 33. Ke2 Rh2+ 34. Rf2 Bf3+ 35. Ke3 Rxf2 36. Kxf2 Bc6 37. Nd3 a5 38. Qd6 Rg2+ 39. Ke1 Kb7 40. Nf4 Rg4 41. Nxe6 Re4+ 42. Kd2 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.24"]
[Round "2.34"]
[White "Kaszdan, Ernesto"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C41"]
[BlackElo "2247"]
[PlyCount "104"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 c6 6. Be2 a5 7. 0-0 Na6 8. f4 Be7 9. Be3 0-0 10. g4 Nc5 11. Bf3 d5 12. e5 Nfe4 13. Nxe4 Nxe4 14. Qe2 f6 15. Bxe4 dxe4 16. Rad1 Qe8 17. Nf5 fxe5 18. Qc4+ Rf7 19. fxe5 Bf8 20. Rd8 Qxd8 21. Nh6+ gxh6 22. Qxf7+ Kh8 23. Qxf8+ Qxf8 24. Rxf8+ Kg7 25. Rd8 h5 26. g5 Kf7 27. Kf2 h4 28. Bd4 b6 29. Ke3 c5 30. Bc3 b5 31. b3 b4 32. Bb2 Ke6 33. Kf4 Bb7 34. Rd6+ Ke7 35. Rh6 Rf8+ 36. Ke3 Rf3+ 37. Kd2 Rf2+ 38. Kd1 Bd5 39. Rxh7+ Kf8 40. Bc1 Rf1+ 41. Kd2 e3+ 42. Kxe3 Rxc1 43. Rxh4 Rxc2 44. Rf4+ Ke7 45. h4 Rxa2 46. Rf6 Rh2 47. Rh6 Bxb3 48. Kf4 a4 49. Kg3 Re2 50. Rf6 Rxe5 51. Kf4 Rd5 52. Ke4 Rd7 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.23"]
[Round "1.33"]
[White "De las Heras, Juan Carlos"]
[Black "Loydoi, Bernardo"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2247"]
[PlyCount "65"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 g6 6. Nc3 Bg7 7. d4 cxd4 8. Nxd4 Nc6 9. Nde2 Nf6 10. f3 0-0 11. Rb1 Rab8 12. b3 a6 13. a4 Rfc8 14. Be3 b6 15. Qd2 Nb4 16. 0-0 Qd8 17. Rfd1 Nd7 18. Bd4 Ne5 19. f4 Bh6 20. h3 Qc7 21. Be3 Ned3 22. Na2 Nxa2 23. Qxd3 Nb4 24. Qd2 Nc6 25. Nc3 Nb4 26. Rbc1 Bg7 27. Ne2 Nc6 28. f5 Na5 29. Qd3 Nc6 30. Nf4 Nb4 31. Qd2 b5 32. Qxb4 bxc4 33. Qxc4 1-0

[Event "Club Argentino-Torre Blanca m"]
[Site "Buenos Aires"]
[Date "2001.12.27"]
[Round "1.15"]
[White "De las Heras, Juan Carlos"]
[Black "Lapicki, Raul"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2260"]
[BlackElo "2304"]
[PlyCount "51"]
[EventDate "2001.12.27"]
[EventType "team-match"]
[EventRounds "1"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. g3 c5 8. Bg2 Be7 9. 0-0 0-0 10. c4 Qb6 11. Qb3 Rd8 12. Qxb6 axb6 13. Rd1 cxd4 14. Bf4 Nd7 15. Bc7 Re8 16. Nxd4 Bf6 17. Nb5 Bxb2 18. Rab1 Ba3 19. Bd6 Bxd6 20. Nxd6 Re7 21. Nxb7 Bxb7 22. Bxb7 Rxa2 23. c5 bxc5 24. Rxd7 Rxd7 25. Bd5 g6 26. Bxa2 1-0

[Event "Buenos Aires Boca op"]
[Site "Buenos Aires"]
[Date "2001.09.26"]
[Round "7"]
[White "Dorin, Mauricio"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2410"]
[BlackElo "2260"]
[PlyCount "103"]
[EventDate "2001.09.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 084 Extra"]
[Source "ChessBase"]
[SourceDate "2001.10.26"]
[SourceVersion "1"]
[SourceVersionDate "2001.10.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Nc3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 c5 7. d3 Nc6 8. h3 Nd4 9. a4 Ne8 10. Nxd4 cxd4 11. Nd5 Nc7 12. Nxe7+ Qxe7 13. c3 Be6 14. f4 f6 15. Kh2 Rfc8 16. Bd2 a5 17. cxd4 exd4 18. e5 Bd5 19. exf6 Qxf6 20. Rc1 Bxg2 21. Kxg2 Nd5 22. Qf3 Ne3+ 23. Bxe3 dxe3 24. Qxb7 Re8 25. Qd5+ Kf8 26. Kf3 Rab8 27. Rfe1 Qe6 28. Qxe6 Rxe6 29. Rxe3 Rxe3+ 30. Kxe3 Rxb2 31. Rc7 Rg2 32. Kf3 Rd2 33. Ke4 Re2+ 34. Kd4 Rh2 35. Rd7 Rxh3 36. Rxd6 Rxg3 37. Rd5 Kf7 38. Rxa5 Kf6 39. Ke4 Rg1 40. Ra6+ Kf7 41. a5 Re1+ 42. Kf3 h5 43. Ra8 Rf1+ 44. Ke3 Re1+ 45. Kf2 Rd1 46. Ke2 Ra1 47. a6 Ra3 48. a7 h4 49. Kf2 h3 50. d4 Ra1 51. Kg3 Ra3+ 52. Kh2 1-0

[Event "Buenos Aires Boca op"]
[Site "Buenos Aires"]
[Date "2001.09.17"]
[Round "1"]
[White "Ricardi, Pablo"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2545"]
[BlackElo "2260"]
[PlyCount "119"]
[EventDate "2001.09.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 084 Extra"]
[Source "ChessBase"]
[SourceDate "2001.10.26"]
[SourceVersion "1"]
[SourceVersionDate "2001.10.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 c6 6. Bf4 Be7 7. Qd2 a5 8. 0-0-0 0-0 9. f3 d5 10. Bd3 dxe4 11. Bxe4 Nxe4 12. Nxe4 a4 13. Qf2 Qa5 14. Bd2 Qd5 15. Kb1 c5 16. Ne2 Be6 17. Nc1 Re8 18. Bg5 Qc6 19. Bxe7 Rxe7 20. Qxc5 Rd7 21. Qxc6 Nxc6 22. Nc5 Rxd1 23. Rxd1 Bc8 24. a3 Ra5 25. Ne4 Be6 26. Ne2 Kf8 27. Nd4 Nxd4 28. Rxd4 Bd5 29. Kc1 Bc6 30. Kd2 Ke7 31. Ke3 f5 32. Nc3 g5 33. g3 h5 34. h3 Re5+ 35. Kf2 Rc5 36. f4 g4 37. h4 Ra5 38. Ke3 Rc5 39. Kd3 Ra5 40. Kd2 Ra8 41. Nd1 Ra5 42. Ne3 Be4 43. Rb4 Ke6 44. Rc4 Bc6 45. Rd4 Ke7 46. Nc4 Rb5 47. Kc1 Rc5 48. Nb6 Ra5 49. Kd2 Ke6 50. Rd8 Be4 51. Ra8 Rc5 52. Rc8 Ra5 53. Re8+ Kf7 54. Ra8 Rc5 55. Rc8 Ra5 56. Kc3 Bc6 57. Nc4 Rd5 58. Ne5+ Ke7 59. Nxc6+ bxc6 60. Rxc6 1-0

[Event "Mar del Plata op 32nd"]
[Site "Mar del Plata"]
[Date "2001.04.11"]
[Round "5"]
[White "Garcia Palermo, Carlos H"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2470"]
[BlackElo "2288"]
[PlyCount "83"]
[EventDate "2001.04.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 081 Extra"]
[Source "ChessBase"]
[SourceDate "2001.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2001.05.06"]
[SourceQuality "1"]

1. g3 d5 2. Nf3 c6 3. Bg2 Bg4 4. d3 Nd7 5. Nbd2 e6 6. b3 Be7 7. Bb2 Bf6 8. c3 h5 9. h3 Bxf3 10. Nxf3 g5 11. Qd2 Ne5 12. Nxe5 Bxe5 13. d4 Bg7 14. c4 Bh6 15. e4 Nf6 16. e5 Nd7 17. 0-0 h4 18. Qe2 Nf8 19. Bf3 Qe7 20. Bg4 0-0-0 21. c5 Kb8 22. b4 Ka8 23. Rab1 Bg7 24. Bc3 f5 25. exf6 Bxf6 26. b5 Nd7 27. bxc6 bxc6 28. Qa6 Nb8 29. Qa4 Rd7 30. Rfe1 Rb7 31. Rxb7 Qxb7 32. Rxe6 Rf8 33. Qc2 Bd8 34. Kg2 Qf7 35. Qe2 Bf6 36. Bh5 Qh7 37. Re8 Rxe8 38. Bxe8 Qg7 39. gxh4 gxh4+ 40. Qg4 Qh6 41. Qc8 Qg5+ 42. Kf3 1-0

[Event "Buenos Aires mT"]
[Site "Buenos Aires"]
[Date "2001.??.??"]
[Round "1"]
[White "De las Heras, Juan Carlos"]
[Black "Scarella, Enrique Alejandro"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "2288"]
[BlackElo "2349"]
[PlyCount "87"]
[EventDate "2001.??.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Qc2 Nf6 5. Bg5 0-0 6. e3 h6 7. Bh4 b6 8. cxd5 exd5 9. Bd3 c5 10. Nge2 Nc6 11. a3 c4 12. Bxf6 Bxf6 13. Bh7+ Kh8 14. Bf5 b5 15. Bxc8 Rxc8 16. 0-0 Rb8 17. Qf5 Ne7 18. Qf3 Qd7 19. Nf4 Rfd8 20. Nh5 Rb6 21. Rfd1 Qf5 22. Qxf5 Nxf5 23. Nxf6 gxf6 24. g4 Ne7 25. f3 f5 26. h3 a5 27. Kf2 Kg7 28. Rd2 b4 29. Na4 Rb5 30. axb4 Rxb4 31. Nc3 fxg4 32. hxg4 Nc6 33. Kg3 Rb3 34. Rh1 Nb4 35. Rh5 a4 36. Nxa4 Rxe3 37. Rdh2 Nc6 38. Rd2 Rd3 39. Rxd3 cxd3 40. Kf4 d2 41. Nc3 Nxd4 42. Ke3 Nb3 43. Kd3 d4 44. Nd1 1/2-1/2

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.27"]
[Round "9"]
[White "Faig, Cristian"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2137"]
[BlackElo "2305"]
[PlyCount "55"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 c6 4. d4 d6 5. Bg2 Be7 6. Nge2 b5 7. 0-0 Qa5 8. Bd2 b4 9. Nb1 Ba6 10. c3 Qb5 11. Re1 c5 12. cxb4 cxb4 13. Qb3 d5 14. exd5 e4 15. Bf4 Qb6 16. Nd2 0-0 17. Nxe4 Nxe4 18. Bxe4 Bb7 19. Rac1 Na6 20. Rc6 Bxc6 21. dxc6 Nc7 22. d5 Bc5 23. Rd1 Rae8 24. Qc2 f5 25. Bf3 Bxf2+ 26. Kg2 Be3 27. Bxc7 Qxc7 28. d6 1-0

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.26"]
[Round "8"]
[White "De las Heras, Juan Carlos"]
[Black "Moreda, Lucas"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2305"]
[BlackElo "2309"]
[PlyCount "109"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 8. Bc4 e6 9. 0-0 Nbd7 10. Re1 Be7 11. c3 0-0 12. d4 b5 13. Bd3 b4 14. c4 c5 15. d5 Bd6 16. dxe6 fxe6 17. Bc2 Qc7 18. Rxe6 Ne5 19. Qe2 Rae8 20. Rxe8 Rxe8 21. Ne4 Nxe4 22. Qxe4 Nf3+ 23. gxf3 Rxe4 24. Bxe4 Be5 25. Be3 Bxb2 26. Rd1 a5 27. Rd5 Bd4 28. Bxd4 cxd4 29. Rxd4 a4 30. Rd5 b3 31. axb3 a3 32. Bb1 Qf4 33. Ra5 Qc1+ 34. Kg2 Qxb1 35. Rxa3 Qg6+ 36. Kf1 Qb6 37. Kg2 Kf7 38. Ra1 Qg6+ 39. Kf1 Qf6 40. Ra7+ Kg6 41. Kg2 Kg5 42. c5 Qg6 43. Ra4 h5 44. Rc4 Kh6+ 45. Kh2 Qd3 46. Kg2 Qxb3 47. Rc1 Qd5 48. Kf1 Qe5 49. Rc4 Qe6 50. Rc3 Qxh3+ 51. Kg1 Qe6 52. Kg2 Qe5 53. Rc4 Qg5+ 54. Kf1 h4 55. c6 0-1

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.25"]
[Round "7"]
[White "De las Heras, Juan Carlos"]
[Black "Cativelli, Gerardo"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2305"]
[BlackElo "2257"]
[PlyCount "111"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. a3 Nd7 7. d3 g6 8. Qe2 Bg7 9. g3 Ne7 10. Bg2 0-0 11. 0-0 Re8 12. Kh1 Qc7 13. Bd2 a5 14. f4 f5 15. e5 d4 16. Na2 Bf8 17. Qf2 Qb6 18. Rab1 Red8 19. Nc1 Nd5 20. Bxd5 cxd5 21. Ne2 Rdc8 22. Nxd4 Kf7 23. Be3 Bc5 24. b4 axb4 25. axb4 Bxd4 26. Bxd4 Qc6 27. Rb2 b5 28. g4 Kg8 29. c3 Nb6 30. Kh2 Na4 31. Rc2 Rc7 32. gxf5 exf5 33. Qh4 Qe6 34. Kg1 Rac8 35. Rfc1 Rc6 36. Kf1 Ra6 37. Qg5 Kg7 38. h4 Kf7 39. Ke1 Nb6 40. h5 Rg8 41. Rh2 Nd7 42. hxg6+ hxg6 43. Rh7+ Rg7 44. Rxg7+ Kxg7 45. Kd2 Ra2+ 46. Ke3 Ra8 47. Rh1 Rh8 48. Ra1 Rh3+ 49. Kf2 Rh2+ 50. Kg1 Rh5 51. Qd8 Rh8 52. Qc7 Rh7 53. Ra7 Kh6 54. Qd8 Rf7 55. Qg5+ Kh7 56. Qd8 1-0

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.24"]
[Round "6"]
[White "Rodi, Luis Ernesto"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2225"]
[BlackElo "2305"]
[PlyCount "96"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 c5 6. Bc4+ Be6 7. Bxe6+ Kxe6 8. 0-0 cxd4 9. Qxd4 Nc6 10. Qc4+ Kd7 11. Nc3 Qa5 12. Bf4 Re8 13. Rad1 Ne5 14. Qd4 Kc8 15. Be3 Nc6 16. Qd3 Kb8 17. a3 Ne5 18. Qd4 Rc8 19. b4 Qb6 20. Qxb6 axb6 21. Bd4 Be7 22. f3 Nc4 23. Nb5 Ne8 24. Rfe1 Nc7 25. a4 Nxb5 26. axb5 Bf6 27. Bxf6 gxf6 28. Rd5 Kc7 29. Rf5 Rhf8 30. Ra1 Ne3 31. Rh5 Rf7 32. c3 Kb8 33. Rc1 d5 34. exd5 Rd7 35. d6 Rxd6 36. Rxh7 Rd2 37. Rg7 Re2 38. h3 f5 39. Kh2 f4 40. Rg5 Rh8 41. c4 Nc2 42. c5 Nxb4 43. cxb6 Re6 44. Rc4 Nd3 45. Rd4 Nb2 46. Rxf4 Rxb6 47. h4 Nd1 48. h5 Nc3 1-0

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.23"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Guerrero, Alvaro"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2305"]
[BlackElo "2160"]
[PlyCount "73"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. c3 Be7 10. Be3 a6 11. Na3 0-0 12. Nc4 Nd7 13. a4 f5 14. f3 Qe8 15. Be2 Qg6 16. 0-0 f4 17. Bf2 Nf6 18. Kh1 Bf5 19. Qb3 Kh8 20. Qxb7 Rae8 21. Nd2 Qh5 22. Rfe1 g5 23. Bxa6 g4 24. Bb5 e4 25. Bxe8 Rxe8 26. Rxe4 g3 27. Bg1 Bxe4 28. fxe4 Qe2 29. Nf3 Ng4 30. Qb5 Qxe4 31. Qxe8+ Kg7 32. Bd4+ Kh6 33. hxg3 fxg3 34. Re1 Nf2+ 35. Kg1 Nh3+ 36. gxh3 Qxf3 37. Qxe7 1-0

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.22"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Mela, Benjamin"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2305"]
[BlackElo "2267"]
[PlyCount "71"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. Qe2 e5 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 d6 6. c3 Bg4 7. b4 Bb6 8. Na3 Nf6 9. Nc4 0-0 10. h3 Be6 11. a4 d5 12. Nxb6 axb6 13. d3 b5 14. Bb2 dxe4 15. dxe4 Bc4 16. Qe3 Rxa4 17. Rd1 Qe7 18. Nd2 Rd8 19. Nxc4 Rxd1+ 20. Kxd1 bxc4 21. Kc2 Ra8 22. Rd1 b5 23. f4 Rd8 24. Rxd8+ Qxd8 25. f5 Qd6 26. g4 h6 27. Bf3 Nh7 28. h4 Qf6 29. Qf2 Qd8 30. Be2 Qd6 31. Qe3 Qe7 32. Qf2 Nf6 33. Qe3 Nh7 34. Qf2 Qd6 35. Qe3 Qe7 36. Qf2 1/2-1/2

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.20"]
[Round "2"]
[White "De las Heras, Juan Carlos"]
[Black "Benedetto, Abel"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2305"]
[BlackElo "2175"]
[PlyCount "67"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. Re1 Bg4 9. c3 f5 10. Qb3 0-0 11. Qxb7 Rf6 12. Qb3 Bxf3 13. gxf3 Rb8 14. Qc2 Bd6 15. fxe4 Rg6+ 16. Kf1 fxe4 17. Bxe4 dxe4 18. Qxe4 Qd7 19. Re3 Bxh2 20. Nd2 Rf8 21. Nf3 Bf4 22. Rd3 Qh3+ 23. Ke2 Qh1 24. Rd1 Qh6 25. d5 Bxc1 26. Raxc1 Rgf6 27. Rh1 Qf4 28. Qxf4 Rxf4 29. Rh3 Ne7 30. Rd1 Re4+ 31. Kd3 Rff4 32. Rg3 Ng6 33. Ng5 Re8 34. Ne6 1-0

[Event "Buenos Aires Clas Abierto op"]
[Site "Buenos Aires"]
[Date "2000.08.19"]
[Round "1"]
[White "Hungaski, Robert Andrew"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "B33"]
[BlackElo "2305"]
[PlyCount "70"]
[EventDate "2000.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 b5 10. Nd5 f5 11. exf5 Bxf5 12. c3 Bg7 13. Qf3 Be6 14. 0-0-0 0-0 15. h4 f5 16. Nf4 Bh6 17. Kb1 Bxf4 18. Qxc6 e4 19. c4 Qb8 20. g3 Be5 21. f4 Rc8 22. Qxc8+ Qxc8 23. fxe5 dxe5 24. cxb5 axb5 25. Bxb5 f4 26. gxf4 exf4 27. Rc1 Qb8 28. Rc6 Rxa3 29. Rxe6 Qxb5 30. Rg1+ Rg3 31. Rd1 Kf7 32. Rxe4 Qf5 33. Rd7+ Qxd7 34. Rxf4+ Kg7 35. Rf1 Qd3+ 0-1

[Event "ARG-chT"]
[Site "Argentina"]
[Date "2000.??.??"]
[Round "2"]
[White "De las Heras, Juan Carlos"]
[Black "Alvarez, Roberto Gabriel"]
[Result "1-0"]
[ECO "B70"]
[WhiteElo "2312"]
[BlackElo "2301"]
[PlyCount "78"]
[EventDate "2000.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Nc6 7. Bg2 Nxd4 8. Qxd4 Bg7 9. a4 Qa5 10. Bd2 Qe5 11. Qxe5 dxe5 12. Nb5 Kf8 13. Bc3 Ne8 14. Bb4 Bd7 15. Rd1 Bc6 16. 0-0 Bf6 17. b3 Kg7 18. f3 a6 19. Nc3 e6 20. Ba5 Be7 21. Bb6 Rc8 22. Rd3 Nc7 23. f4 Na8 24. Be3 exf4 25. gxf4 Rhd8 26. Rfd1 Rxd3 27. cxd3 f5 28. Ne2 fxe4 29. dxe4 Rd8 30. Nd4 Kf7 31. Rc1 Bd7 32. e5 Bc8 33. Be4 Ba3 34. Rc2 Ke7 35. Bf2 Bb4 36. Bh4+ Kd7 37. Bxd8 Kxd8 38. Kg2 Nb6 39. Kf3 Nd5 1-0

[Event "Buenos Aires CAA Invierno op"]
[Site "Buenos Aires"]
[Date "2000.??.??"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "2305"]
[BlackElo "2368"]
[PlyCount "80"]
[EventDate "2000.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. 0-0 d6 7. Nc3 Bg4 8. h3 Bh5 9. Qd3 Qd7 10. a3 a6 11. Bc4 Bf7 12. Nd5 Nxd5 13. exd5 Nd8 14. Ng5 Bg6 15. Qe2 Be7 16. Ne4 Nf7 17. Bd3 0-0 18. c4 Rae8 19. Bd2 Qd8 20. Rac1 Bxe4 21. Qxe4 g6 22. c5 Bg5 23. Be3 Bxe3 24. fxe3 dxc5 25. Rxc5 Nd6 26. Rxf8+ Kxf8 27. Qf3+ Kg7 28. e4 Qe7 29. Rc1 Rf8 30. Qe3 Rf7 31. g3 a5 32. Kg2 b6 33. Be2 h5 34. h4 Kh7 35. Rc3 Qf8 36. Rc1 Qh6 37. Qxh6+ Kxh6 38. Bd3 g5 39. hxg5+ Kxg5 40. Re1 h4 0-1

[Event "ARG-chT"]
[Site "Argentina"]
[Date "2000.??.??"]
[Round "4"]
[White "Escobar, Telmo Carlos"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2280"]
[BlackElo "2312"]
[PlyCount "49"]
[EventDate "2000.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 Be7 5. e5 Nfd7 6. Ne2 c5 7. c3 Qb6 8. 0-0 0-0 9. Nf3 f6 10. exf6 Nxf6 11. b3 Nc6 12. Bg5 Bd6 13. c4 Nxd4 14. Nexd4 cxd4 15. Nxd4 dxc4 16. Bxc4 Be5 17. Nf5 Bxa1 18. Qxa1 Qc5 19. Bxf6 Rxf6 20. Ng3 Rf8 21. Ne4 Qh5 22. Re1 Bd7 23. Qd4 Bc6 24. Bxe6+ Kh8 25. f3 0-1

[Event "Mar del Plata op 30th"]
[Site "Mar del Plata"]
[Date "1999.04.04"]
[Round "9"]
[White "Hoffman, Alejandro"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2547"]
[BlackElo "2312"]
[PlyCount "89"]
[EventDate "1999.03.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. a3 Bd6 9. Bd3 Qe7 10. 0-0 0-0 11. Qc2 Rd8 12. Rfe1 dxc4 13. Bxc4 b5 14. Bd3 Bb7 15. Ne4 Bb8 16. Nfd2 f5 17. Ng3 a6 18. Nb3 a5 19. Nf1 a4 20. Nc1 Ba7 21. Na2 Rac8 22. Rac1 Nf6 23. Nc3 Bb6 24. Qe2 Kh8 25. Red1 Ra8 26. Na2 Rac8 27. Nd2 Bc7 28. Nf3 Nd7 29. e4 Qf6 30. Re1 Bf4 31. Rcd1 fxe4 32. Qxe4 Nf8 33. Nc3 Ba8 34. Qe2 Qe7 35. Ne4 Re8 36. Nc5 Bd6 37. Ne5 Bxe5 38. Qxe5 Rcd8 39. Bb1 Rd5 40. Qe4 Qf6 41. Rd3 Red8 42. Rf3 Rf5 43. Nxe6 Rxf3 44. Nxf8 Rf5 45. Nd7 1-0

[Event "Mar del Plata op 30th"]
[Site "Mar del Plata"]
[Date "1999.04.03"]
[Round "8"]
[White "De las Heras, Juan Carlos"]
[Black "Caceres Vasquez, Sergio"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "2312"]
[BlackElo "2060"]
[PlyCount "99"]
[EventDate "1999.03.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Be3 a6 8. N5c3 Nf6 9. Nd5 Nxd5 10. exd5 Ne7 11. f3 g6 12. c4 Bg7 13. Nc3 Nf5 14. Qd2 Nxe3 15. Qxe3 0-0 16. Be2 Qh4+ 17. g3 Qd4 18. Qxd4 exd4 19. Ne4 Rd8 20. Bd3 f5 21. Nf2 Re8+ 22. Kd2 Bd7 23. Rae1 Re3 24. Nd1 Rxe1 25. Rxe1 Kf7 26. Nf2 b5 27. f4 bxc4 28. Bxc4 Bb5 29. Rc1 Rb8 30. Nd3 a5 31. Bxb5 Rxb5 32. Rc7+ Kf8 33. a4 Rb6 34. Ra7 Bf6 35. Rxa5 g5 36. Ra7 gxf4 37. gxf4 h5 38. b4 Bd8 39. Kc2 Rb8 40. Ra6 h4 41. a5 h3 42. Ra7 Kg8 43. a6 Bb6 44. Rb7 Rxb7 45. axb7 Ba7 46. b5 Kg7 47. b6 Bb8 48. Nf2 Kg6 49. Nxh3 Kh5 50. Nf2 1-0

[Event "Mar del Plata op 30th"]
[Site "Mar del Plata"]
[Date "1999.04.01"]
[Round "6"]
[White "De las Heras, Juan Carlos"]
[Black "Giardelli, Sergio Carlos"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2312"]
[BlackElo "2437"]
[PlyCount "60"]
[EventDate "1999.03.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. g3 b5 4. Bg2 d6 5. e4 Nbd7 6. f4 Nb6 7. Nd2 g6 8. Ngf3 Bg7 9. 0-0 0-0 10. Re1 a5 11. Nf1 b4 12. h3 Ne8 13. Ne3 Nc7 14. g4 Nb5 15. e5 a4 16. c4 bxc3 17. bxc3 c4 18. Qd2 Qc7 19. Rb1 Ra5 20. Rb4 Rd8 21. Rxb5 Rxb5 22. Nd4 Rb1 23. Qc2 dxe5 24. Nc6 Rb5 25. fxe5 Re8 26. Qe4 Bb7 27. e6 f6 28. Nb4 Qg3 29. Rf1 Rd8 30. Bd2 Nxd5 0-1

[Event "Mar del Plata op 30th"]
[Site "Mar del Plata"]
[Date "1999.03.30"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[ECO "C71"]
[WhiteElo "2312"]
[BlackElo "2432"]
[PlyCount "138"]
[EventDate "1999.03.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4 Nf6 6. Nc3 Bg4 7. h3 Bxf3 8. Qxf3 Nd7 9. Bxc6 bxc6 10. h4 Be7 11. g3 0-0 12. d3 Nc5 13. Qe2 Rb8 14. Be3 Rxb2 15. Qd1 Ne6 16. 0-0 Qb8 17. Qa4 Qb4 18. Qxb4 Rxb4 19. Rfb1 Rfb8 20. Rxb4 Rxb4 21. Rb1 Rxb1+ 22. Nxb1 g6 23. Nd2 Kf8 24. Nb3 Ke8 25. Kf1 Kd7 26. Ke2 h5 27. Kf3 c5 28. Ke2 f5 29. Bc1 f4 30. Bd2 g5 31. hxg5 Bxg5 32. Bc3 fxg3 33. fxg3 h4 34. gxh4 Nf4+ 35. Kd1 Bxh4 36. Kc2 Bf2 37. Nd2 Be1 38. Nb3 Bxc3 39. Kxc3 Kc6 40. Kd2 Kb6 41. Kc2 Ne2 42. Kb2 Nd4 43. Nd2 Ka5 44. Nb1 Ne2 45. Nc3 Nf4 46. Kc2 Kb4 47. Nb1 Ne2 48. Kb2 Nf4 49. Kc2 Ka4 50. Kd2 Ne6 51. Kc2 Nd4+ 52. Kb2 Ne2 53. Kc2 Ka5 54. Nc3 Nd4+ 55. Kb2 Ne6 56. a3 Nf4 57. Kc2 Kb6 58. Na4+ Kc6 59. Kd2 Kd7 60. Nc3 Ke6 61. Ke3 Kf6 62. Nb1 Kg5 63. Nd2 Kg4 64. Nb3 Kg3 65. Na5 Ne6 66. Nc6 Nd4 67. Ne7 Kg2 68. Nd5 Ne6 69. Ke2 Nf4+ 0-1

[Event "Mar del Plata op 30th"]
[Site "Mar del Plata"]
[Date "1999.03.29"]
[Round "3"]
[White "Pierrot, Juan Facundo"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2442"]
[BlackElo "2312"]
[PlyCount "84"]
[EventDate "1999.03.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nf6 5. Nc3 Be7 6. Bg5 0-0 7. 0-0-0 Nc6 8. Qd2 a6 9. Bd3 b5 10. Rhe1 Ne5 11. Nxe5 dxe5 12. Bf1 Qxd2+ 13. Rxd2 h6 14. Bh4 c6 15. f3 Be6 16. Red1 Rfd8 17. a3 Rxd2 18. Rxd2 Kf8 19. Nd1 Nd7 20. Bxe7+ Kxe7 21. Ne3 Nc5 22. b4 Nb7 23. c4 f6 24. Kb2 Nd6 25. Kc3 bxc4 26. Bxc4 a5 27. Bxe6 Kxe6 28. bxa5 Nb5+ 29. Kb4 Nd4 30. Nc4 c5+ 31. Ka4 Ra7 32. Rb2 Kd7 33. Rb6 Kc7 34. a6 Kd7 35. Rd6+ Kc7 36. Rb6 Kd7 37. Ka5 Kc7 38. Nd6 Nc6+ 39. Kb5 Nd4+ 40. Kxc5 Ne6+ 41. Kb5 Nd4+ 42. Ka5 Nc6+ 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "6"]
[White "Giaccio, Alfredo Gustavo"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2505"]
[BlackElo "2312"]
[PlyCount "83"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 Nf6 7. h3 0-0 8. 0-0 Re8 9. c4 Nbd7 10. Nc3 c6 11. Bf4 a6 12. b4 Nf8 13. d5 cxd5 14. cxd5 Ng6 15. Bh2 Ne5 16. Bc2 Bf8 17. Nd4 g6 18. Bb3 b5 19. a4 Bd7 20. axb5 axb5 21. Rxa8 Qxa8 22. Ndxb5 Qb7 23. f4 Neg4 24. hxg4 Bxb5 25. Nxb5 Qxb5 26. Ba4 Qb6+ 27. Kh1 Re7 28. Bg3 Qxb4 29. Bh4 Bg7 30. f5 Re4 31. fxg6 fxg6 32. Bc2 Rf4 33. Rxf4 Qxf4 34. Qf3 Qd4 35. Bxf6 Bxf6 36. Bd3 Be5 37. g3 Qa1+ 38. Kg2 Qc1 39. Bb5 Qd2+ 40. Kh3 Qh6+ 41. Kg2 Qd2+ 42. Kh3 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "9"]
[White "Sorin, Ariel"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2501"]
[BlackElo "2312"]
[PlyCount "80"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. Nh3 c6 7. f3 Nf6 8. Bg5 Qb6 9. Qd2 a6 10. fxe4 fxe4 11. Bxf6 Bxf6 12. 0-0-0 0-0 13. Nxe4 Be7 14. e3 Qd8 15. d5 Bxh3 16. gxh3 c5 17. Be2 Nd7 18. Rhf1 Rxf1 19. Rxf1 Ne5 20. Qc3 Qc7 21. Kb1 Rb8 22. Ng3 g6 23. Bg4 Rf8 24. Be6+ Kg7 25. Rf4 h5 26. h4 b5 27. cxb5 axb5 28. b4 c4 29. Bh3 Qa7 30. Ne2 Ra8 31. Qd2 Nd3 32. Be6 Bf6 33. Rf1 Qa3 34. Nc1 c3 35. Qg2 Nxb4 36. Rf2 Ra4 37. Bf5 g5 38. hxg5 Be5 39. Bd3 Nxd3 40. Nxd3 c2+ 0-1

[Event "Villa Martelli op"]
[Site "Villa Martelli"]
[Date "1998.11.08"]
[Round "4"]
[White "Hoffman, Alejandro"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2525"]
[BlackElo "2315"]
[PlyCount "79"]
[EventDate "1998.11.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 c6 2. e4 d6 3. d4 g6 4. Nc3 Bg7 5. Nf3 Nf6 6. Be2 0-0 7. 0-0 e5 8. Re1 Nh5 9. g3 Bg4 10. d5 c5 11. Bd2 Nf6 12. Nh4 Bc8 13. Qc2 Ne8 14. Bd3 Qd7 15. f3 f5 16. exf5 gxf5 17. g4 e4 18. fxe4 Bd4+ 19. Kh1 fxg4 20. Nf5 Be5 21. Bh6 Rf7 22. Qd2 Kh8 23. Rg1 Nf6 24. Bf4 Qd8 25. Bxe5 dxe5 26. Raf1 Bxf5 27. Rxf5 Nbd7 28. Ne2 Rg7 29. Ng3 Ne8 30. Nh5 Rg6 31. Qc3 Ng7 32. Nxg7 Rxg7 33. Bc2 a6 34. Ba4 Nb6 35. b3 Nc8 36. Qxe5 Nd6 37. Rf6 Nxe4 38. Rf7 Qg5 39. Qxg7+ Qxg7 40. Rxg7 1-0

[Event "Villa Martelli op"]
[Site "Villa Martelli"]
[Date "1998.11.07"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Giaccio, Alfredo Gustavo"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2315"]
[BlackElo "2460"]
[PlyCount "120"]
[EventDate "1998.11.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 b6 5. Bg2 Bb7 6. Ngf3 c5 7. e5 Nfd7 8. 0-0 Nc6 9. Re1 g5 10. c4 d4 11. h4 gxh4 12. Nxh4 Qc7 13. f4 0-0-0 14. a3 Kb8 15. Qh5 f6 16. Ndf3 Bg7 17. Qf7 Rhg8 18. Qxe6 Rde8 19. Qd6 Qxd6 20. exd6 Rxe1+ 21. Nxe1 Na5 22. b4 Bxg2 23. Nexg2 Nb7 24. Nf5 Bf8 25. b5 Bxd6 26. Bd2 Kc7 27. Kf2 Rf8 28. Rh1 Rf7 29. Nh6 Rf8 30. Nf5 Rf7 31. Rh5 Bf8 32. Ngh4 Nd6 33. Nxd6 Bxd6 34. Nf5 Nf8 35. Kf3 Ng6 36. g4 Kd7 37. a4 Bc7 38. Rh1 Bd8 39. Rh6 Bc7 40. Ng3 Bd6 41. Rh1 Bc7 42. Nf5 Bd8 43. Ng3 Bc7 44. Nh5 Rf8 45. a5 Rf7 46. axb6 axb6 47. Ra1 Bb8 48. Be1 Kc8 49. Bg3 Nf8 50. Re1 Kd8 51. Bh4 Nd7 52. Nxf6 Nxf6 53. Re6 Kd7 54. Rxf6 Re7 55. Bf2 Bd6 56. Rh6 Bc7 57. f5 Bd6 58. Rh1 Bc7 59. Ra1 h5 60. gxh5 Rf7 1-0

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.11.01"]
[Round "9"]
[White "Albarran, Gustavo Eduardo"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2105"]
[BlackElo "2315"]
[PlyCount "66"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. Ne5 e6 6. Bf4 Be7 7. e3 0-0 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. Qf3 Ra7 12. Qh3 c5 13. dxc5 Bxc5 14. 0-0 Nbd7 15. Rfd1 g6 16. Nxd7 Nxd7 17. Ne4 Be7 18. Qh6 Bxe4 19. Bxe4 Qb6 20. Rac1 Nf6 21. Be5 Qa5 22. Bb1 b4 23. f4 Rd8 24. Rxd8+ Qxd8 25. Bd4 Rc7 26. Rf1 Bc5 27. Bxc5 Rxc5 28. Qh4 Kg7 29. Qe1 a5 30. h3 Rb5 31. Bc2 h5 32. Qc1 Qe7 33. Bb3 Qe8 1-0

[Event "Villa Martelli op"]
[Site "Villa Martelli"]
[Date "1998.11.??"]
[Round "6"]
[White "Fiorito, Fabian"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2425"]
[BlackElo "2315"]
[PlyCount "84"]
[EventDate "1998.11.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 f5 5. Qc2 Nf6 6. Bg5 Nbd7 7. e3 Be7 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Bc4 0-0 11. 0-0 b6 12. e4 fxe4 13. Qxe4 N7f6 14. Qh4 Bd7 15. Rfe1 Rae8 16. Nxd5 Nxd5 17. Qxe7 Rxe7 18. Bxd5 cxd5 19. Rac1 Rc8 20. Rxc8+ Bxc8 21. Rc1 Bb7 22. Ne5 Kf8 23. f3 Ke8 24. Kf2 Kd8 25. Ke3 Rc7 26. Rxc7 Kxc7 27. Kf4 Ba6 28. h4 Bb5 29. h5 Be8 30. h6 gxh6 31. Ng4 Kd6 32. Nxh6 Bg6 33. Ng4 Bc2 34. Kg5 Ke7 35. Ne5 a5 36. a3 Bb1 37. g4 Bc2 38. f4 Be4 39. Kh6 Bc2 40. g5 Bf5 41. Kg7 a4 42. Nf7 Bg6 1-0

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.10.28"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Zapata, Alonso"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2315"]
[BlackElo "2470"]
[PlyCount "62"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 067 Extra"]
[Source "ChessBase"]
[SourceDate "1999.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.01.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 d6 7. Bg2 Nxd4 8. Qxd4 Nf6 9. 0-0 Bd7 10. h3 Be7 11. Be3 0-0 12. Rfd1 a6 13. a4 Rac8 14. Qb4 Rfe8 15. Bb6 Qb8 16. Qd4 Bc6 17. a5 Nd7 18. Kh1 Nxb6 19. axb6 Bd7 20. f4 Rc6 21. Rd2 Rec8 22. Ra4 Rxc3 23. bxc3 Bxa4 24. Qxa4 Rc6 25. c4 Rxb6 26. Qd7 Bf8 27. c5 Rb1+ 28. Kh2 Qa7 29. Rxd6 Bxd6 30. Qxd6 Qa8 31. e5 Qc8 0-1

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.10.27"]
[Round "4"]
[White "Gomez Baillo, Jorge H"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2445"]
[BlackElo "2315"]
[PlyCount "45"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 067 Extra"]
[Source "ChessBase"]
[SourceDate "1999.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.01.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nf6 5. Bg5 Be7 6. Nc3 0-0 7. 0-0-0 Nc6 8. Qd2 a6 9. Kb1 Be6 10. h4 b5 11. Qe1 h6 12. e5 Ng4 13. exd6 cxd6 14. Bxe7 Qxe7 15. Bd3 d5 16. Ne2 Qf6 17. Rf1 Rac8 18. Ned4 Nce5 19. Nxe5 Nxe5 20. f3 Rfe8 21. Qf2 Nc4 22. Rfe1 Bd7 23. c3 1/2-1/2

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.10.25"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Zalazar, Jorge"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2315"]
[PlyCount "71"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qa5 5. Bb5 Bd7 6. d4 a6 7. Be2 Bg4 8. h3 Bf5 9. 0-0 0-0-0 10. Be3 Nf6 11. a3 e5 12. b4 Bxb4 13. axb4 Qxb4 14. Na2 Qb2 15. c3 Nd5 16. Bd3 e4 17. Qb1 Qxb1 18. Bxb1 Bg6 19. Nh4 f5 20. Bg5 Rd7 21. Bc2 Re8 22. Nxg6 hxg6 23. Rfe1 Na5 24. f3 e3 25. Nc1 Nc4 26. Bb3 Ndb6 27. Nd3 Nb2 28. Ba2 N2c4 29. Bxc4 Nxc4 30. Ra4 Nb6 31. Ra2 Nd5 32. Rc2 Rd6 33. c4 Nf6 34. Bxe3 Nh5 35. d5 c6 36. Kf2 1-0

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.10.25"]
[Round "2"]
[White "Malajovich, Sandra"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2120"]
[BlackElo "2315"]
[PlyCount "58"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 Na6 6. e3 0-0 7. Be2 c5 8. d5 h6 9. Bh4 g5 10. Bg3 Nh5 11. Nd2 Nxg3 12. hxg3 e6 13. a3 Nc7 14. g4 exd5 15. cxd5 f5 16. gxf5 Bxf5 17. e4 Bg6 18. g4 Qf6 19. f3 a6 20. Nc4 Nb5 21. Nxb5 axb5 22. Nb6 Rad8 23. Ra2 c4 24. a4 Bxe4 25. axb5 Bd3 26. Bxd3 Rde8+ 27. Be2 Qxf3 28. Nxc4 Qxh1+ 29. Kd2 Qxd5+ 0-1

[Event "Najdorf Festival op"]
[Site "Buenos Aires"]
[Date "1998.10.24"]
[Round "1"]
[White "De las Heras, Juan Carlos"]
[Black "Leanos, Cesar"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "2315"]
[PlyCount "94"]
[EventDate "1998.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. h4 Nc6 9. h5 Nxd4 10. Bxd4 e5 11. Be3 Be6 12. hxg6 fxg6 13. Bf3 Qd7 14. Qd2 Rfc8 15. Rd1 Rc6 16. Nd5 Rac8 17. c3 Bxd5 18. exd5 Ra6 19. a3 Ra5 20. Qc2 Qa4 21. Qxa4 Rxa4 22. Rd2 Nd7 23. Bd1 Ra5 24. Bg4 Rc7 25. Be6+ Kh8 26. Bxd7 Rxd7 27. Rh4 Bf6 28. Rc4 Kg7 29. Kd1 h5 30. Kc2 g5 31. f3 Kg6 32. Kb3 b5 33. Re4 Rb7 34. Ka2 Ra4 35. b4 a5 36. Kb3 axb4 37. axb4 Rb8 38. Ra2 Rxa2 39. Kxa2 Ra8+ 40. Kb3 Kf5 41. c4 g4 42. Bf2 bxc4+ 43. Rxc4 gxf3 44. gxf3 Rb8 45. Ka4 Ra8+ 46. Kb3 Rb8 47. Ka4 Ra8+ 1/2-1/2

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.16"]
[Round "9"]
[White "De las Heras, Juan Carlos"]
[Black "Rosito, Jorge"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2270"]
[BlackElo "2360"]
[PlyCount "89"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 4. Bh4 d6 5. Nbd2 g5 6. Bg3 Nh5 7. e3 Bg7 8. Ng1 Nxg3 9. hxg3 Nd7 10. Bd3 Qe7 11. c3 b6 12. Be4 d5 13. Bd3 e5 14. Qa4 Bb7 15. Ne2 0-0 16. Bf5 Nf6 17. Nf3 exd4 18. cxd4 Ne4 19. Rc1 c5 20. Nc3 Nxg3 21. fxg3 Qxe3+ 22. Kd1 cxd4 23. Re1 Qf2 24. Rc2 Qxg3 25. Nxd4 Qf4 26. Nce2 Qf2 27. g4 Rfe8 28. Rd2 Re5 29. Bd3 Rae8 30. Nf5 Bf8 31. Nfg3 d4 32. Rf1 Qg2 33. Rg1 Qh2 34. Rf1 Qg2 35. Rg1 Qf3 36. Rf1 Qxg4 37. Qxd4 Qxd4 38. Nxd4 Bb4 39. Re2 Bd5 40. Nh5 Rxe2 41. Nf6+ Kf8 42. Nxe2 Re3 43. Kc2 Be6 44. Ne4 Bh3 45. Rf6 1-0

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.15"]
[Round "8"]
[White "Szmetan, Jorge"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2420"]
[BlackElo "2270"]
[PlyCount "73"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. d4 e6 4. e3 f5 5. Bd3 Nf6 6. 0-0 Bd6 7. b3 Qe7 8. Ne5 0-0 9. Bb2 Bd7 10. f3 Be8 11. Nd2 Nfd7 12. Qe2 Nxe5 13. dxe5 Bc5 14. f4 Nd7 15. Bd4 Bb4 16. Nb1 dxc4 17. Bxc4 c5 18. Bb2 Nb6 19. a3 Ba5 20. Bc3 Nxc4 21. Qxc4 Bb6 22. a4 Bc6 23. a5 Bd5 24. Qb5 Bc7 25. b4 b6 26. Nd2 Rfd8 27. bxc5 Qxc5 28. Qxc5 bxc5 29. Kf2 Rab8 30. Rab1 Kf7 31. Rfc1 g6 32. Bb4 Rb5 33. Bxc5 Rxb1 34. Nxb1 Bxa5 35. Bxa7 Ra8 36. Bd4 Bb4 37. Rc2 1/2-1/2

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.14"]
[Round "7"]
[White "De las Heras, Juan Carlos"]
[Black "Scarella, Enrique Alejandro"]
[Result "1-0"]
[ECO "D22"]
[WhiteElo "2270"]
[BlackElo "2380"]
[PlyCount "87"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. Nc3 a6 7. h3 Bh5 8. Bb3 Nc6 9. 0-0 Bd6 10. Qe2 0-0 11. Rd1 Qe7 12. g4 Bg6 13. Nh4 e5 14. Nxg6 hxg6 15. Qf3 Rad8 16. a3 Rfe8 17. g5 Nh5 18. h4 exd4 19. exd4 Nxd4 20. Rxd4 Bh2+ 21. Kxh2 Rxd4 22. Be3 Rxh4+ 23. Kg2 Kh7 24. Rh1 Rxh1 25. Kxh1 f5 26. Nd5 Qe5 27. Nf4 Qe4 28. Kg2 c6 29. Qxe4 Rxe4 30. Ne6 a5 31. Nf8+ Kh8 32. Nxg6+ Kh7 33. Nf8+ Kh8 34. Kf3 b5 35. Ne6 a4 36. Ba2 b4 37. Nd4 bxa3 38. bxa3 g6 39. Nxc6 Rh4 40. Ne5 Kg7 41. Nd3 Rh1 42. Nf4 Nxf4 43. Bxf4 Rd1 44. Ke2 1-0

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.13"]
[Round "6"]
[White "Dickau, Daniel"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2120"]
[BlackElo "2270"]
[PlyCount "58"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. g3 c6 7. Bg2 a6 8. a4 a5 9. 0-0 Nfd7 10. Be3 Qb6 11. Qe2 Na6 12. d5 Nac5 13. Nd4 Ne5 14. f4 Ng4 15. Rae1 Nxe4 16. Nxc6 Nxe3 17. Nxe7+ Kh8 18. Nxe4 Nxf1+ 19. Kxf1 Bd7 20. f5 Qxb2 21. Qg4 Bd4 22. Qh4 Rae8 23. Re2 Qc1+ 24. Re1 Qxc4+ 25. Re2 Bxf5 26. Bf3 Bxe4 27. Bxe4 Qc3 28. Rc2 Bf6 29. Qh3 Qa1+ 0-1

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.11"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Mendez, Ernesto"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2270"]
[BlackElo "2400"]
[PlyCount "70"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. f4 0-0 9. 0-0 b5 10. a3 Bb7 11. Bf3 Nbd7 12. Kh1 Rc8 13. Be3 Ba8 14. Qe1 Nb6 15. Rd1 Qc7 16. Bxb6 Qxb6 17. Qg3 Rfe8 18. Rd3 Bf8 19. Nd2 a5 20. Bd1 b4 21. axb4 axb4 22. Na4 Qa6 23. fxe5 dxe5 24. c4 Nxe4 25. Nxe4 Bxe4 26. Rd7 Bg6 27. Bb3 e4 28. Qe3 Rcd8 29. Rfd1 Rxd7 30. Rxd7 Qf6 31. Kg1 Bd6 32. g3 Bf5 33. Rb7 Be5 34. Kg2 Bd4 35. Qf4 g5 0-1

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.10"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Sorokin, Maxim"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "2270"]
[BlackElo "2575"]
[PlyCount "48"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Kh1 d5 10. Nxc6 bxc6 11. e5 Ne4 12. Nxe4 dxe4 13. Qxd8 Rxd8 14. f4 exf3 15. Bxf3 Bxe5 16. Bxc6 Rb8 17. Rad1 Rxd1 18. Rxd1 Rxb2 19. Bd5 a5 20. Bb3 Bg4 21. Rc1 Be6 22. c4 Bd7 23. c5 Bc6 24. Rg1 Kg7 0-1

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.09"]
[Round "3"]
[White "Kanefsck, Gustavo"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2400"]
[BlackElo "2270"]
[PlyCount "80"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 c6 7. 0-0 a5 8. Kh1 0-0 9. f4 Re8 10. Bf3 Bf8 11. Re1 a4 12. a3 Qa5 13. Be3 Nbd7 14. Bf2 Nb6 15. Rb1 Nc4 16. Qd3 Qa6 17. Be2 b5 18. Bf3 Bd7 19. Bg3 c5 20. Nf5 Bxf5 21. exf5 Rxe1+ 22. Bxe1 Re8 23. Bh4 Re3 24. Qd1 Nxb2 25. Rxb2 Rxc3 26. Bxf6 gxf6 27. Bd5 Rxa3 28. h3 Re3 29. Qg4+ Bg7 30. Qh5 Re7 31. c4 b4 32. g4 Qa7 33. Rg2 a3 34. g5 a2 35. g6 a1Q+ 36. Kh2 Q1a2 37. Qxh7+ Kf8 38. h4 Qxg2+ 39. Bxg2 Qa2 40. gxf7 Rxf7 0-1

[Event "Boca Juniors op"]
[Site "Buenos Aires"]
[Date "1998.05.08"]
[Round "2"]
[White "De las Heras, Juan Carlos"]
[Black "Vasquez Schroder, Rodrigo Rafael"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2270"]
[BlackElo "2485"]
[PlyCount "75"]
[EventDate "1998.05.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 064 Extra"]
[Source "ChessBase"]
[SourceDate "1998.07.07"]
[SourceVersion "1"]
[SourceVersionDate "1998.07.07"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. Qe2 Bd6 8. N1f3 h6 9. Ne4 Nxe4 10. Qxe4 c5 11. 0-0 Qc7 12. b3 Nf6 13. Qh4 cxd4 14. Qxd4 b6 15. Bb5+ Ke7 16. Bb2 Bb7 17. Ne5 Rad8 18. Bd3 Bd5 19. Rfe1 Qb7 20. Qh4 Kf8 21. Ng6+ fxg6 22. Bxf6 Rc8 23. Be5 Bxe5 24. Rxe5 g5 25. Qh3 Qc7 26. Rae1 b5 27. Qg4 a6 28. Bg6 Qd7 29. h4 gxh4 30. Qxh4 a5 31. f4 Qd8 32. Qh5 Qb6+ 33. Kh2 Qf2 34. Qf5+ Ke7 35. Qf7+ Kd6 36. Rxe6+ Bxe6 37. Rxe6+ Kc5 38. Qa7+ 1-0

[Event "Buenos Aires FMDA-chT"]
[Site "Buenos Aires"]
[Date "1998.??.??"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Benedetto, Abel"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "2315"]
[PlyCount "65"]
[EventDate "1998.11.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. f4 0-0 9. 0-0 exf4 10. Bxf4 Be6 11. Qe1 a5 12. Bb5 Nb4 13. Qe2 Rc8 14. Kh1 Nc6 15. h3 Ne5 16. Nd4 Ng6 17. Bh2 d5 18. e5 Nd7 19. Nf5 Bxf5 20. Rxf5 Rc5 21. e6 Nf6 22. Rd1 d4 23. exf7+ Kh8 24. Rxc5 Bxc5 25. Bc4 Qb6 26. Na4 Qc6 27. Nxc5 Qxc5 28. Qd3 Rd8 29. a3 Ne5 30. Bxe5 Qxe5 31. Qxd4 Qxd4 32. Rxd4 Rf8 33. Rd6 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "1997.05.??"]
[Round "8"]
[White "Hoffman, Alejandro"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2480"]
[BlackElo "2265"]
[PlyCount "93"]
[EventDate "1997.05.19"]
[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 d5 2. c4 c6 3. Nf3 e6 4. Nbd2 f5 5. g3 Nd7 6. Bg2 Bd6 7. 0-0 Nh6 8. cxd5 exd5 9. Nb3 Nf7 10. Qc2 Qf6 11. Bf4 g5 12. Bxd6 Nxd6 13. Nc5 Nxc5 14. Qxc5 h6 15. Ne5 0-0 16. f4 gxf4 17. Rxf4 Nf7 18. Nxf7 Rxf7 19. Raf1 Qe7 20. Qc1 Rh7 21. Bh3 Qxe2 22. Bxf5 Bxf5 23. Rxf5 Re8 24. Qf4 Qe3+ 25. Qxe3 Rxe3 26. Rf8+ Kg7 27. R1f7+ Kg6 28. Rf6+ Kg7 29. Kf2 Re4 30. h4 h5 31. R6f7+ Kg6 32. Rf5 Rg4 33. R8f6+ Kg7 34. Rd6 Kg8 35. Rd8+ Kg7 36. Rd7+ Kg8 37. Rxh7 Kxh7 38. Rxh5+ Kg6 39. Rg5+ Rxg5 40. hxg5 a5 41. b3 b6 42. Kf3 Kxg5 43. a4 c5 44. Ke3 Kg4 45. Kf2 Kg5 46. Kf3 Kf5 47. Ke3 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1997.??.??"]
[Round "7"]
[White "Campitelli, Guillermo"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2185"]
[BlackElo "2265"]
[PlyCount "54"]
[EventDate "1997.11.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bf4 0-0 7. Qd2 Nc6 8. Nxc6 bxc6 9. 0-0-0 Nd7 10. Be3 Bf6 11. f4 Qe7 12. Bd3 Nb6 13. Rhg1 Be6 14. g4 c5 15. f5 Bc4 16. g5 Be5 17. f6 Qe6 18. Bf4 Bxc3 19. Qxc3 Bxd3 20. Rxd3 Qxa2 21. b3 c4 22. bxc4 Nxc4 23. Rd4 Rab8 24. Kd1 Rb1+ 25. Bc1 Ne5 26. Rg3 Qa6 27. Qe1 Rxc1+ 0-1

[Event "Clarin GP1 Boca Juniors"]
[Site "Boca"]
[Date "1997.??.??"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Ricardi, Pablo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2265"]
[BlackElo "2575"]
[PlyCount "62"]
[EventDate "1997.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. g3 Nf6 5. h3 g6 6. Bg2 Bg7 7. Nge2 0-0 8. 0-0 c5 9. d3 Nc6 10. Bd2 Qc7 11. Qc1 b6 12. Bh6 Bb7 13. Bxg7 Kxg7 14. Qe3 Rfd8 15. Ne4 Rac8 16. Rac1 Qd7 17. Rfe1 Nd5 18. Qd2 h6 19. N4c3 Nf6 20. Ne4 Nxe4 21. Bxe4 Qxh3 22. Nf4 Qd7 23. Re3 Nd4 24. c3 Bxe4 25. cxd4 Ba8 26. dxc5 Rxc5 27. Rxc5 bxc5 28. Qc3+ Kg8 29. Qxc5 Rc8 30. Qb4 Rc1+ 31. Re1 Qb7 0-1

[Event "Clarin GP1 Boca Juniors"]
[Site "Boca"]
[Date "1997.??.??"]
[Round "6"]
[White "De las Heras, Juan Carlos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2265"]
[BlackElo "2395"]
[PlyCount "47"]
[EventDate "1997.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. d4 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qa4 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Nbd2 Nbd7 11. b3 c5 12. Bb2 Rc8 13. Qd3 Qb6 14. dxc5 Nxc5 15. Qe3 Bd5 16. Bd4 Qb7 17. Rfc1 Ncd7 18. Bh3 Rxc1+ 19. Rxc1 Rc8 20. Rxc8+ Qxc8 21. Qc3 Qxc3 22. Bxc3 Ne4 23. Nxe4 Bxe4 24. Nd2 1/2-1/2

[Event "Clarin GP1 Boca Juniors"]
[Site "Boca"]
[Date "1997.??.??"]
[Round "7"]
[White "Garcia, Raimundo"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "2380"]
[BlackElo "2265"]
[PlyCount "97"]
[EventDate "1997.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Bf5 3. c4 e6 4. Bg5 f6 5. Bf4 g5 6. Bd2 Nc6 7. Nc3 Nge7 8. Qa4 Bg7 9. e3 0-0 10. Be2 Kh8 11. 0-0 h6 12. cxd5 exd5 13. Rfc1 Nc8 14. Qd1 Nb6 15. Na4 Nxa4 16. Qxa4 Qd7 17. Qd1 Ne7 18. Ba5 c6 19. Ne1 Rfe8 20. Nd3 Nc8 21. Nc5 Qf7 22. Bd2 Nd6 23. a4 Bf8 24. b3 Bg6 25. Ba5 h5 26. Bd3 Bxd3 27. Nxd3 Ne4 28. Ra2 Qh7 29. Re2 h4 30. f3 Nd6 31. Nf2 f5 32. Qd2 Re6 33. Rce1 Bh6 34. Bb4 Nf7 35. Qd3 Rae8 36. e4 fxe4 37. fxe4 g4 38. e5 g3 39. Qxh7+ Kxh7 40. Ng4 Bg5 41. Rf1 Nh6 42. Nxh6 Kxh6 43. Rf3 gxh2+ 44. Kxh2 b6 45. Rf8 Rxf8 46. Bxf8+ Kg6 47. Bb4 a5 48. Be1 Be7 49. Kg1 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1997.??.??"]
[Round "2"]
[White "Giardelli, Sergio Carlos"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2460"]
[BlackElo "2265"]
[PlyCount "95"]
[EventDate "1997.11.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. Qc2 Nf6 4. b3 g6 5. Bb2 Bg7 6. g3 0-0 7. Bg2 Bf5 8. d3 Qc8 9. h3 Na6 10. Nbd2 Rd8 11. a3 Nc7 12. Rc1 Nce8 13. Qb1 dxc4 14. Nxc4 Nd6 15. Ncd2 Nfe8 16. e4 Be6 17. Bxg7 Nxg7 18. Qb2 Nb5 19. a4 Nc7 20. Qc3 Qd7 21. d4 Nce8 22. Qe3 f6 23. Rd1 Nd6 24. g4 Nf7 25. Nf1 Qd6 26. N1d2 Qb4 27. 0-0 h5 28. e5 hxg4 29. hxg4 fxe5 30. Qe4 Kh7 31. Nh4 Nh8 32. Ndf3 Bd5 33. Qxe5 Qd6 34. Qe3 Nf7 35. Rfe1 Ne6 36. Ne5 Nxe5 37. dxe5 Qb4 38. Qg3 Nf4 39. Be4 Rf8 40. Bc2 Rad8 41. Re3 Qc5 42. Bf5 Qb4 43. Nxg6 Nxg6 44. Qh4+ Kg7 45. Bxg6 Rh8 46. Bh5 Rh7 47. e6 Kh8 48. Qg5 1-0

[Event "Clarin GP1 Boca Juniors"]
[Site "Boca"]
[Date "1997.??.??"]
[Round "2"]
[White "Giardelli, Sergio Carlos"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "E54"]
[WhiteElo "2460"]
[BlackElo "2265"]
[PlyCount "107"]
[EventDate "1997.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. cxd5 cxd5 4. exd5 Qxd5 5. Nc3 Qd8 6. d4 e6 7. Nf3 Nf6 8. Bc4 Be7 9. 0-0 0-0 10. Qd3 a6 11. Bg5 Nbd7 12. Rad1 b5 13. Bb3 Bb7 14. Rfe1 b4 15. Ne2 Qa5 16. Bh4 Rad8 17. Qe3 Ng4 18. Qf4 Bxh4 19. Qxg4 Be7 20. Nf4 Nf6 21. Qh3 Bd5 22. Ne5 Qc7 23. Rc1 Qb7 24. Bxd5 Nxd5 25. Nxe6 fxe6 26. Qxe6+ Kh8 27. Nf7+ Rxf7 28. Qxf7 h6 29. Re5 Qd7 30. Rce1 Bf8 31. Qxd7 Rxd7 32. Re8 Kg8 33. Ra8 Nf6 34. Rd1 Kf7 35. Rxa6 Bc5 36. Kf1 Rxd4 37. Rxd4 Bxd4 38. a3 b3 39. a4 Bxb2 40. Rb6 Ne4 41. a5 Bd4 42. Rb7+ Ke6 43. a6 b2 44. Rxb2 Nd6 45. Rb4 Bc5 46. Rg4 Kf6 47. h4 g6 48. f3 h5 49. Ra4 Ba7 50. g4 Nf7 51. Ke2 Ne5 52. Rb4 Bg1 53. gxh5 gxh5 54. Rb7 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1997.??.??"]
[Round "5"]
[White "Perez Pietronave, Carlos"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2255"]
[BlackElo "2265"]
[PlyCount "49"]
[EventDate "1997.11.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 0-0 7. 0-0 Nc6 8. Be3 Nxd4 9. Bxd4 Be6 10. f4 c5 11. Bf2 Qb6 12. Qd3 Rad8 13. Qg3 Kh8 14. b3 Rfe8 15. Rae1 Qb4 16. Bb5 Rf8 17. a3 Qa5 18. f5 Bc8 19. b4 Qxa3 20. bxc5 dxc5 21. Ra1 Qb4 22. e5 Nd5 23. Nxd5 Rxd5 24. c4 Rd4 25. Bxd4 1-0

[Event "Mar del Plata op"]
[Site "Mar del Plata"]
[Date "1996.??.??"]
[Round "3"]
[White "Corsi Ferrari, Alejandro"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "A11"]
[BlackElo "2205"]
[PlyCount "63"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. e3 e6 4. Nf3 Nd7 5. Be2 Bd6 6. Rb1 a5 7. d4 f5 8. Qc2 Nh6 9. a3 Qf6 10. b4 axb4 11. axb4 Nf7 12. b5 0-0 13. bxc6 bxc6 14. cxd5 exd5 15. 0-0 g5 16. Na4 g4 17. Ne1 Ng5 18. Kh1 Qh6 19. g3 Ba6 20. Bxa6 Rxa6 21. Nc5 Bxc5 22. dxc5 Ne5 23. f4 gxf3 24. Bb2 Qh3 25. Kg1 Nc4 26. Nxf3 Ne4 27. Bd4 Rfa8 28. Nh4 Na3 29. Qe2 Nxb1 30. Nxf5 R8a7 31. Qg4+ Qxg4 32. Nh6# 1-0

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "8"]
[White "De las Heras, Juan Carlos"]
[Black "Fernandez, Ja"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2275"]
[PlyCount "122"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. g4 Bg6 7. Qe2 Nf6 8. d3 Qc7 9. Nxf6+ gxf6 10. Nh4 Nd7 11. f4 h6 12. f5 Bh7 13. Bd2 0-0-0 14. 0-0-0 Qe5 15. Qf3 Qd5 16. Qxd5 cxd5 17. d4 e6 18. c4 Nb6 19. c5 Nd7 20. Bd3 e5 21. Bb5 exd4 22. Bxd7+ Rxd7 23. b4 b6 24. c6 Rc7 25. b5 Ba3+ 26. Kc2 Re8 27. Kb3 Bc5 28. Bxh6 Rce7 29. Rh2 Re4 30. Rhd2 Kc7 31. Nf3 Bxf5 32. gxf5 Rh8 33. Nxd4 Rxh6 34. Nc2 Rxh3+ 35. Kb2 Re5 36. Rxd5 Rxd5 37. Rxd5 Bd6 38. a4 Rf3 39. Nd4 Re3 40. Kc2 Ra3 41. Ne2 Rxa4 42. Nc3 Rg4 43. Rd2 Rc4 44. Kb3 Rb4+ 45. Kc2 Rc4 46. Kb3 Rb4+ 47. Kc2 Rh4 48. Nd5+ Kb8 49. Nxf6 Rh2 50. Rxh2 Bxh2 51. Nd5 Bd6 52. Kb3 Kc8 53. Kc4 Be5 54. Kd3 Kd8 55. Ke4 Bg3 56. Kf3 Be5 57. Kg4 Ke8 58. Kg5 Kd8 59. Kh6 Ke8 60. Kh7 Kd8 61. Kg8 Ke8 1-0

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Figueirido, Mario"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2275"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f3 e5 7. Nb3 Be6 8. Bg5 Be7 9. Qd2 a6 10. Rd1 Qc7 11. Nd5 Bxd5 12. exd5 Nb8 13. c4 Nbd7 14. Be3 b6 15. Be2 0-0 16. 0-0 Rfc8 17. Rb1 Qd8 18. Na1 Nh5 19. Rfc1 Nf4 20. Bf1 f5 21. Nc2 a5 22. Na3 Nh5 23. Nb5 Nc5 24. b3 Qf8 25. Qc2 Qf6 26. a3 g6 27. b4 axb4 28. axb4 Nd7 29. Qb3 Qf7 30. Ra1 Ng7 31. Na7 f4 32. Nxc8 Rxc8 33. Bf2 g5 34. Ra7 Nf6 35. c5 1-0

[Event "Buenos Aires FMDA-chT"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Garcia, Manuel"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2275"]
[BlackElo "2130"]
[PlyCount "49"]
[EventDate "1996.??.??"]
[EventType "team"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 d6 5. Be2 Nf6 6. Nf3 0-0 7. Nd2 Bd7 8. 0-0 Na6 9. f4 Nc7 10. a4 b6 11. Nc4 Bc8 12. Bd2 e6 13. Be1 exd5 14. exd5 Bb7 15. Bh4 Qd7 16. Bf3 Rfe8 17. h3 Ba6 18. b3 Bxc4 19. bxc4 Re3 20. Qd2 Rae8 21. Rab1 Rxc3 22. Qxc3 Nfxd5 23. Qd2 Nc3 24. Rb3 Nxa4 25. f5 0-1

[Event "Bissell op"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Llanos, Guillermo"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2275"]
[BlackElo "2410"]
[PlyCount "53"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 a6 7. f3 b5 8. g4 h6 9. Qd2 Bb7 10. 0-0-0 Nbd7 11. Rg1 b4 12. Nce2 d5 13. exd5 Nxd5 14. f4 Nc5 15. Bg2 Qa5 16. Kb1 0-0-0 17. Nc1 Na4 18. Ncb3 Qc7 19. Qf2 Be7 20. f5 e5 21. Ne2 Bh4 22. Ng3 Rd7 23. Nc5 Nxc5 24. Bxc5 e4 25. Bxe4 Qa5 26. Bd3 Rhd8 27. Ba7 1-0

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "2"]
[White "De las Heras, Juan Carlos"]
[Black "Rodriguez Vila, Andres"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2275"]
[BlackElo "2575"]
[PlyCount "90"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 c6 8. Qc2 Na6 9. Bg5 Qe8 10. a3 e5 11. Bxf6 Rxf6 12. e3 Nc7 13. b4 Be6 14. Ne2 e4 15. Nd2 g5 16. f4 exf3 17. Rxf3 Bf7 18. Nf1 Qe6 19. Rc1 Bg6 20. Qd2 d5 21. c5 Re8 22. Rf2 Bh5 23. Nc3 Qf7 24. b5 Ne6 25. bxc6 bxc6 26. Bxd5 cxd5 27. Nxd5 Rh6 28. Nb4 g4 29. Qd3 Bg6 30. d5 Ng5 31. Rf4 Nf3+ 32. Kh1 Be5 33. d6 Bxf4 34. exf4 Re1 35. Rxe1 Nxe1 36. Qd1 Qe6 37. Qd5 Be8 38. Ne3 Nf3 39. h4 Qxd5 40. Nbxd5 Nd4 41. Ne7+ Kf7 42. N7xf5 Nxf5 43. Nxf5 Rh5 44. Ne3 Rxc5 45. Nxg4 Ke6 0-1

[Event "Bissell op"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Schweber, Samuel"]
[Result "0-1"]
[ECO "C09"]
[WhiteElo "2275"]
[BlackElo "2330"]
[PlyCount "112"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. 0-0 Nge7 9. Nb3 Bd6 10. Bg5 0-0 11. c3 Bg4 12. Be2 Re8 13. Bh4 Qb6 14. Bxe7 Rxe7 15. Nfd4 Bxe2 16. Nxe2 a5 17. a4 Rxe2 18. Qxe2 Qxb3 19. Rfd1 Be5 20. g3 Bf6 21. Ra3 Qc4 22. Qxc4 dxc4 23. Raa1 Ne5 24. Rd5 b6 25. Rb5 Rb8 26. Rd1 Nd3 27. Rd2 Kf8 28. Kf1 Ke7 29. Re2+ Kd6 30. Re4 Rc8 31. Rxb6+ Kd5 32. f3 Nc5 33. Rb5 Ra8 34. Ke2 Ra7 35. Kd1 Rb7 36. Rxb7 Nxb7 37. Re8 Nc5 38. Ra8 Nxa4 39. Rxa5+ Nc5 40. Ke2 h5 41. Ra7 Ke6 42. Ra5 Be7 43. Rb5 Bd6 44. Ra5 g5 45. Ra1 Be5 46. Rd1 h4 47. gxh4 gxh4 48. h3 Kf5 49. Rg1 Bg3 50. Rd1 Ne6 51. Rd7 f6 52. Rd5+ Be5 53. Kd2 Kf4 54. Ke2 Kg3 55. Ke3 Kxh3 56. Ra5 Kg2 0-1

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "9"]
[White "Dolezal, Cristian"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2355"]
[BlackElo "2275"]
[PlyCount "106"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. d3 Nd7 5. h3 Bh5 6. Nbd2 e6 7. b3 Bd6 8. Bb2 f6 9. e4 Ne7 10. Qe2 e5 11. d4 0-0 12. 0-0 Qc7 13. g4 Bf7 14. dxe5 Nxe5 15. Nd4 N7g6 16. Rfe1 Nf4 17. Qf1 Rae8 18. Ne2 Neg6 19. Nxf4 Nxf4 20. Bf3 Bb4 21. c3 Bc5 22. b4 Bd6 23. Nb3 Bg6 24. Nd2 Qc8 25. Re3 Bc7 26. c4 Bb6 27. c5 Bc7 28. Rae1 a6 29. exd5 cxd5 30. Bg2 h5 31. Bf3 Kh7 32. gxh5 Bd3 33. Rxd3 Rxe1 34. Qxe1 Nxd3 35. Qb1 Qf5 36. Bd4 Qg5+ 37. Bg4 Qxd2 38. Bf5+ Kh8 39. Qxd3 Qxd3 40. Bxd3 Be5 41. Be3 Bc3 42. a3 Re8 43. Kg2 d4 44. Bf4 Re1 45. Kf3 Ra1 46. Ke4 Rxa3 47. h4 Bxb4 48. Bd6 Ra5 49. Bc7 Ra3 50. Bb6 Be1 51. Kxd4 Bxf2+ 52. Kc4 Ra4+ 53. Kd5 Rd4+ 0-1

[Event "Bissell op"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "4"]
[White "Filgueira, Hernan"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2315"]
[BlackElo "2275"]
[PlyCount "111"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. c4 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. d4 Bxf3 9. Bxf3 d5 10. cxd5 Nxd5 11. Nd2 Nd7 12. e4 fxe4 13. Nxe4 Re8 14. Bg4 Bf8 15. Re1 Bb4 16. Re2 N7f6 17. Bf3 Nxe4 18. Bxe4 Qg5 19. Rc2 Bd6 20. h4 Qf6 21. Qf1 Rad8 22. Qg2 Kh8 23. Rd1 Qf7 24. Re2 Rf8 25. Kh1 Qh5 26. Red2 Rf6 27. Rd3 Rdf8 28. f4 Bxf4 29. Bf3 Qf7 30. Bxd5 exd5 31. gxf4 Rxf4 32. Ba3 Re8 33. Kg1 Qh5 34. Rf1 Qxh4 35. Rxf4 Qxf4 36. Qf2 Qg4+ 37. Kf1 h5 38. Rf3 Kh7 39. Bc1 Re4 40. Bf4 c5 41. Be5 cxd4 42. Bxg7 Re3 43. Rxe3 dxe3 44. Qf7 Qxg7 45. Qxh5+ Qh6 46. Qf7+ Kh8 47. Qe8+ Kg7 48. Qd7+ Kf6 49. Qd6+ Kg5 50. Qxd5+ Kg4 51. Ke2 Qh2+ 52. Kxe3 Qxa2 53. Qf3+ Kg5 54. Qd5+ Kf6 55. Qd6+ Kf7 56. Qd7+ 1/2-1/2

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "5"]
[White "Filgueira, Hernan"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2315"]
[BlackElo "2275"]
[PlyCount "92"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 Nf6 5. cxd5 exd5 6. Qc2 Na6 7. Bg5 Nc7 8. e3 Ne6 9. Bh4 Be7 10. Bd3 g6 11. 0-0 0-0 12. Rab1 a5 13. a3 Ng7 14. Rfc1 Bf5 15. Bxf6 Bxf6 16. Na4 Bxd3 17. Qxd3 Nf5 18. Nc5 Qe7 19. b4 axb4 20. Rxb4 Nd6 21. Rcb1 Ra7 22. a4 b5 23. axb5 Nxb5 24. Ra4 Rxa4 25. Nxa4 Qa7 26. Nc5 Ra8 27. Rc1 Qe7 28. Qb3 Ra3 29. Qb4 Qa7 30. g3 Ra2 31. Kg2 Na3 32. Qb3 Nc4 33. Rc2 Ra3 34. Qb1 Be7 35. Nb3 Ra4 36. Qe1 Bb4 37. Qe2 Qa6 38. h4 Ra3 39. Nc1 h5 40. e4 Bc3 41. exd5 cxd5 42. Qe8+ Kg7 43. Ne2 Ba1 44. Nf4 Qf6 45. Re2 Bxd4 46. Re7 Nd6 1-0

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "7"]
[White "Fucek, Claudio"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2265"]
[BlackElo "2275"]
[PlyCount "67"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nf6 5. Nc3 Be7 6. Bf4 0-0 7. 0-0-0 Nc6 8. Qd2 a6 9. Bd3 Nb4 10. Be2 b5 11. Rhe1 Be6 12. Kb1 d5 13. Ng5 c5 14. exd5 Nfxd5 15. Nxe6 fxe6 16. Nxd5 Nxd5 17. Bg3 Bg5 18. Qd3 Nf4 19. Qe4 Qf6 20. h4 Bh6 21. Bf3 Rad8 22. Qc6 Ng6 23. Rxd8 Rxd8 24. Qxa6 Bd2 25. Qxe6+ Qxe6 26. Rxe6 Kf7 27. Rd6 Rxd6 28. Bxd6 Ke6 29. Bxc5 Nxh4 30. Bb7 g5 31. c3 Ng6 32. Kc2 Bf4 33. Bc6 h5 34. Bxb5 1-0

[Event "Bissell op"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "2"]
[White "Ginzburg, Maximiliano"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C62"]
[WhiteElo "2405"]
[BlackElo "2275"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 Qf6 8. Nc3 Qxd4 9. Nxd4 Nf6 10. Nxc6 bxc6 11. 0-0 Be7 12. b3 Nd7 13. Bb2 Nc5 14. Rad1 Rb8 15. Rfe1 0-0 16. Ba3 Nb7 17. e5 Rfe8 18. exd6 Bxd6 19. Bb2 Nc5 20. Rxe8+ Rxe8 21. Kf1 a5 22. Ne2 Ne6 23. Bc3 Ra8 24. Nd4 Nxd4 25. Rxd4 c5 26. Rd3 a4 27. Ke2 f6 28. Bd2 axb3 29. axb3 Ra2 30. Kf3 Kf7 31. h4 h5 32. g3 Rb2 33. Bc1 Rb1 34. Be3 Ke6 35. Ke2 1/2-1/2

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "1"]
[White "Lugo, Raul"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C27"]
[BlackElo "2275"]
[PlyCount "54"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Be7 4. d4 exd4 5. Qxd4 Nc6 6. Qd1 0-0 7. Bf4 d6 8. Nge2 Ne5 9. Bb3 c6 10. Qd2 b5 11. Ng3 a5 12. a4 b4 13. Nce2 g6 14. 0-0-0 Nfd7 15. Nd4 Ra6 16. Bh6 Re8 17. h3 c5 18. f4 cxd4 19. fxe5 dxe5 20. Rhf1 Rf6 21. Rxf6 Bxf6 22. Kb1 Nc5 23. Bd5 Be6 24. Bxe6 Rxe6 25. b3 Bh4 26. Nf5 Nxe4 27. Qe1 Nc3+ 0-1

[Event "Bissell op"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "6"]
[White "Panelo Munoz, Marcelo A"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2220"]
[BlackElo "2275"]
[PlyCount "104"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bc4 0-0 7. Qe2 Nc6 8. Nxc6 bxc6 9. 0-0 Nd7 10. h3 Bf6 11. Be3 Re8 12. f4 Bxc3 13. bxc3 Rxe4 14. Bd3 Re8 15. Qf3 Bb7 16. Rad1 Nb6 17. Bd4 Qh4 18. Bf2 Qh6 19. c4 Rad8 20. g4 Ba8 21. g5 Qe6 22. Rde1 Qd7 23. c5 dxc5 24. Rd1 Qe7 25. c4 Bb7 26. Rde1 Qf8 27. Rxe8 Rxe8 28. f5 Nd7 29. f6 Ne5 30. Qe4 Nxd3 31. Qxd3 Bc8 32. Re1 Rxe1+ 33. Bxe1 Qd6 34. Qe3 Qd4 35. Bf2 Qxe3 36. Bxe3 Bxh3 37. Bxc5 gxf6 38. gxf6 a6 39. Be3 h5 40. c5 Be6 41. a3 Kh7 42. Kf2 Kg6 43. Bd4 h4 44. Kf3 Kf5 45. Kg2 Ke4 46. Bf2 h3+ 47. Kg3 Ke5 48. Be3 Kxf6 49. Bf4 Kf5 50. Bxc7 Ke4 51. Bd6 Kd4 52. a4 Kc4 0-1

[Event "Villa Ballester Siembra op"]
[Site "Villa Ballester"]
[Date "1996.??.??"]
[Round "3"]
[White "Romano, Fernando"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "2275"]
[PlyCount "68"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. Bg5 Bg4 4. Nbd2 Nd7 5. e3 Ngf6 6. Bd3 e6 7. c3 Bd6 8. e4 dxe4 9. Nxe4 Be7 10. Nxf6+ Nxf6 11. h3 Bh5 12. Qe2 Qd5 13. Bxf6 Bxf6 14. Be4 Qa5 15. 0-0 0-0 16. Rfe1 Rfd8 17. Qc2 Bg6 18. Ne5 Bxe4 19. Qxe4 Qd5 20. b3 Rac8 21. Qxd5 cxd5 22. Re3 Rc7 23. g3 Rdc8 24. Rc1 Bxe5 25. dxe5 d4 26. Rd3 dxc3 27. Rc2 Kf8 28. Kf1 Ke7 29. Ke2 b5 30. Rd4 f6 31. exf6+ gxf6 32. Kd1 e5 33. Re4 Rd8+ 34. Kc1 Rd4 0-1

[Event "Buenos Aires CABJ op 60'"]
[Site "Buenos Aires"]
[Date "1996.??.??"]
[Round "?"]
[White "Szmetan, Jorge"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "2405"]
[BlackElo "2275"]
[PlyCount "52"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. Nc3 a6 5. Qb3 e6 6. Bg5 Be7 7. e3 Nbd7 8. Bd3 0-0 9. Qc2 dxc4 10. Bxc4 c5 11. 0-0 b5 12. Bd3 c4 13. Be2 Bb7 14. e4 b4 15. e5 bxc3 16. exf6 Bxf6 17. Bxf6 Qxf6 18. bxc3 Bd5 19. Qa4 Rfd8 20. Rab1 h5 21. Qc2 e5 22. Qd2 e4 23. Ne1 Qg6 24. Nc2 h4 25. Ne3 h3 26. f3 Nb6 1-0

[Event "ARG-chT"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "2"]
[White "Campos, Jose Felix"]
[Black "De las Heras, Juan Carlos"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2275"]
[BlackElo "2205"]
[PlyCount "80"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c3 Bf5 4. Bf4 e6 5. Nbd2 Nd7 6. e3 Be7 7. Be2 Ngf6 8. h3 Ne4 9. Nxe4 Bxe4 10. Bh2 0-0 11. 0-0 Bxf3 12. Bxf3 f5 13. a4 a5 14. b3 Nf6 15. Be5 Bd6 16. Bxd6 Qxd6 17. Rb1 e5 18. g3 e4 19. Be2 g5 20. Qd2 Rf7 21. b4 h5 22. bxa5 h4 23. a6 bxa6 24. Kg2 Rg7 25. Rg1 f4 26. gxf4 gxf4+ 27. Kh1 f3 28. Rxg7+ Kxg7 29. Rg1+ Kf7 30. Bf1 Qa3 31. c4 Qxa4 32. Qb2 Rd8 33. Qb6 Rd7 34. cxd5 cxd5 35. Rg5 Qa3 36. Qb8 Qc1 37. Rg1 Qc2 38. Bxa6 Qc6 39. Bf1 Ke6 40. Bb5 Qb7 1-0

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "8"]
[White "De las Heras, Juan Carlos"]
[Black "Amil Meilan, Horacio"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2205"]
[BlackElo "2250"]
[PlyCount "71"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. h3 Nc6 5. Bb5 Qc7 6. 0-0 d6 7. d4 Bd7 8. Re1 a6 9. Bf1 e5 10. dxc5 dxc5 11. Be3 b6 12. b4 cxb4 13. cxb4 Nge7 14. Nc3 Be6 15. Rc1 b5 16. Ng5 0-0 17. Nxe6 fxe6 18. a4 bxa4 19. Nxa4 Qb7 20. Nc5 Qxb4 21. Nxe6 Rfb8 22. Bc5 Qb7 23. Bd6 Rc8 24. Rb1 Qd7 25. Bc4 Kh8 26. Ng5 h6 27. Be6 Qa7 28. Nf7+ Kh7 29. Bxc8 Rxc8 30. Qg4 Rf8 31. Qe6 Nd4 32. Ng5+ hxg5 33. Qxe7 Rf7 34. Qxa7 Rxa7 35. Rb6 Nb5 36. Bb8 1-0

[Event "Buenos Aires IVESS op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "8"]
[White "De las Heras, Juan Carlos"]
[Black "Bustos, Cristian"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2205"]
[BlackElo "2275"]
[PlyCount "86"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. g4 Bxg4 10. fxg4 Nxg4 11. Nb3 a5 12. a4 e6 13. 0-0-0 Nb4 14. Kb1 Nxe3 15. Qxe3 Rc8 16. Nd4 Qb6 17. Bb5 Qc5 18. Rhe1 Rfd8 19. Bf1 Qh5 20. Qh3 Qc5 21. Qe3 Qh5 22. Qe2 Qc5 23. Ndb5 d5 24. exd5 exd5 25. Bh3 f5 26. Bg2 d4 27. Qf2 d3 28. Rd2 dxc2+ 29. Rxc2 Nxc2 30. Qxc2 b6 31. Rd1 Qb4 32. Rxd8+ Rxd8 33. Qe2 Kh8 34. Bd5 Qf8 35. Qe6 Qf6 36. Qxf6 Bxf6 37. Kc2 Be5 38. h3 Kg7 39. Bf3 Bd4 40. Nd5 Bc5 41. Nbc7 Rc8 42. Kd3 Bg1 43. b3 h6 1/2-1/2

[Event "ARG-chT"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "1"]
[White "De las Heras, Juan Carlos"]
[Black "Campos, Jose Felix"]
[Result "1-0"]
[ECO "C63"]
[WhiteElo "2205"]
[BlackElo "2275"]
[PlyCount "83"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. 0-0 Bc5 7. Qd3 d6 8. Nc3 Bd7 9. Na4 Bb6 10. Nxb6 axb6 11. Bc4 Qe7 12. a3 Nb4 13. Qc3 Na6 14. Bxa6 bxa6 15. Qxc7 0-0 16. Rd1 Ne8 17. Qb7 Rc8 18. c3 b5 19. Bg5 Qf7 20. Bh4 Rc7 21. Qb6 Rc6 22. Qa7 Nc7 23. Bg3 Bc8 24. Rd3 Qc4 25. Qe3 Ne8 26. Rad1 h6 27. Nd2 Qa2 28. Rb1 Be6 29. Qe1 Bc4 30. Re3 Nf6 31. Qc1 Bf7 32. b3 Bxb3 33. Rxb3 Rfc8 34. f3 Nd7 35. Qb2 Qxb2 36. Rxb2 Rxc3 37. Rxc3 Rxc3 38. Ra2 Nc5 39. Nf1 a5 40. Be1 Rb3 41. Bxa5 Nd3 42. a4 1-0

[Event "Buenos Aires VII Najdorf op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Celis, Gustavo"]
[Result "1/2-1/2"]
[ECO "B57"]
[WhiteElo "2205"]
[BlackElo "2335"]
[PlyCount "57"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nde2 e6 8. Bb3 Be7 9. 0-0 a6 10. Kh1 0-0 11. Ng3 Qc7 12. f4 b5 13. f5 Kh8 14. Nh5 b4 15. Na4 Ne5 16. Nxf6 Bxf6 17. fxe6 Bxe6 18. Be3 Rab8 19. Bd4 Qc6 20. Qe2 Rfe8 21. c3 Nd7 22. Rae1 bxc3 23. Bxe6 Rxe6 24. Bxf6 Nxf6 25. Nxc3 Rbe8 26. Qf3 Qb7 27. h3 Kg8 28. Rd1 h6 29. b3 1/2-1/2

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "6"]
[White "De las Heras, Juan Carlos"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2205"]
[BlackElo "2385"]
[PlyCount "116"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Be3 Be6 8. N1c3 Nf6 9. Bg5 a6 10. Bxf6 gxf6 11. Na3 d5 12. Nxd5 Bxa3 13. bxa3 Qa5+ 14. Qd2 Qxd2+ 15. Kxd2 0-0-0 16. c4 f5 17. f3 fxe4 18. fxe4 f5 19. exf5 Bxf5 20. Bd3 Bxd3 21. Kxd3 Rhg8 22. g3 Rg4 23. Rac1 Kb8 24. Ke2 Nd4+ 25. Ke3 Nf5+ 26. Kf3 Rd4 27. Rhe1 Nd6 28. Rxe5 Nxc4 29. Rh5 Nd2+ 30. Ke2 R8xd5 31. Rxd5 Rxd5 32. Ke3 b5 33. g4 Nc4+ 34. Ke4 Rd2 35. h4 Rxa2 36. h5 Kc7 37. Kf5 Kd7 38. Re1 Rf2+ 39. Kg5 Nd6 40. Kh6 Rg2 41. Kg5 h6+ 42. Kf4 Rf2+ 43. Kg3 Rf6 44. a4 Re6 45. Rd1 Kc6 46. axb5+ axb5 47. Kf4 b4 48. Rf1 Nf7 49. Kf5 Rd6 50. Re1 b3 51. Rb1 Rd3 52. Kg6 Rf3 53. Kg7 Kd5 54. g5 hxg5 55. h6 Nxh6 56. Kxh6 g4 57. Kg5 g3 58. Kg4 Rd3 0-1

[Event "Buenos Aires VII Najdorf op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "6"]
[White "De las Heras, Juan Carlos"]
[Black "German, Gustavo"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2150"]
[BlackElo "2425"]
[PlyCount "79"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 a6 4. a4 e6 5. 0-0 d5 6. exd5 exd5 7. Re1+ Be7 8. Bf1 Nf6 9. d4 c4 10. b3 cxb3 11. cxb3 0-0 12. Ne5 Nb4 13. Nd3 Be6 14. Ba3 Qb6 15. Nxb4 Bxb4 16. Bxb4 Qxb4 17. Re3 Rac8 18. Qd2 Qd6 19. Nc3 Rc6 20. Be2 Rfc8 21. Bf3 Qb4 22. Ne4 Qxd2 23. Nxd2 Rc2 24. Nf1 Rb2 25. Rae1 Rcc2 26. R1e2 Rxe2 27. Bxe2 Ne4 28. Bf3 Kf8 29. Be2 Nd2 30. Nxd2 Rxd2 31. Kf1 Rxd4 32. Ke1 Ke7 33. Bd3 g6 34. Be2 Kf6 35. Rc3 Rh4 36. h3 Rb4 37. Kd2 h5 38. Bd1 d4 39. Rf3+ Bf5 40. Rg3 0-1

[Event "Buenos Aires IVESS op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "5"]
[White "De las Heras, Juan Carlos"]
[Black "Le Fort, Gaston"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2205"]
[PlyCount "77"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 Nge7 5. Bg2 d5 6. Nbd2 Ng6 7. 0-0 Be7 8. Re1 0-0 9. h4 Bf6 10. h5 Nge5 11. Nh2 Nd4 12. f4 Nec6 13. c3 Nb5 14. e5 Be7 15. h6 g6 16. Ng4 Nc7 17. Nf3 Ne8 18. Bh3 Rb8 19. d4 c4 20. b4 cxb3 21. axb3 b5 22. b4 a5 23. bxa5 Nxa5 24. Ba3 Nc4 25. Bxe7 Qxe7 26. Qb3 Qc7 27. Qb4 Nb6 28. Ng5 Bb7 29. Nxh7 Nd7 30. Nxf8 Nxf8 31. Bf1 Bc6 32. Bd3 Nh7 33. Ra6 Qd7 34. Rb1 Nc7 35. Ra7 Kh8 36. Qd6 Rc8 37. Rba1 Kg8 38. Ne3 Nf8 39. Qc5 1-0

[Event "Buenos Aires VII Najdorf op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "9"]
[White "De las Heras, Juan Carlos"]
[Black "Mahia, Gustavo"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2150"]
[BlackElo "2320"]
[PlyCount "74"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. c3 Nf6 6. a3 Be7 7. g3 b6 8. Bg2 dxe4 9. dxe4 Ba6 10. Qa4 Qc8 11. e5 Nd7 12. Qg4 0-0 13. Nc4 f5 14. exf6 Nxf6 15. Qh4 e5 16. Bh3 Qb7 17. Be6+ Kh8 18. Qh3 Nd8 19. Ncxe5 Qe4+ 20. Be3 Nxe6 21. Qxe6 Rae8 22. 0-0-0 Bc8 23. Qc4 Qxc4 24. Nxc4 Bb7 25. Ng5 Bxh1 26. Rxh1 Nd5 27. Ne6 Nxe3 28. fxe3 Rf2 29. Rd1 Rxh2 30. Rd7 Bf6 31. Rxa7 h5 32. Nf4 b5 33. Nd6 Rxe3 34. Ng6+ Kh7 35. Nf8+ Kg8 36. Kb1 Ree2 37. Ne6 Rxe6 1-0

[Event "Buenos Aires tt"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "4"]
[White "De las Heras, Juan Carlos"]
[Black "Montoro, Gustavo Ernesto"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2205"]
[PlyCount "69"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 d5 5. Nbd2 Bd6 6. Bg2 Nge7 7. 0-0 0-0 8. c3 b6 9. Re1 f6 10. a3 a5 11. d4 cxd4 12. Nxd4 Nxd4 13. cxd4 Ra7 14. Nf3 dxe4 15. Rxe4 Nd5 16. Bd2 Re7 17. Qb3 Bd7 18. Rae1 Qe8 19. Bh3 a4 20. Qd3 g5 21. Nxg5 fxg5 22. Bxg5 Nf6 23. Rh4 Qg6 24. Qd2 Ree8 25. Bf1 Rf7 26. Bd3 Qg7 27. Bh6 Qh8 28. Re5 Bxe5 29. dxe5 Rc8 30. Qg5+ Rg7 31. Qxf6 Rg6 32. Qe7 Rxh6 33. Rg4+ Rg6 34. Bxg6 Rc1+ 35. Kg2 1-0

[Event "Buenos Aires IVESS op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "3"]
[White "De las Heras, Juan Carlos"]
[Black "Naymark, Israel"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2205"]
[PlyCount "59"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Be7 6. Bg2 Bf6 7. 0-0 Nge7 8. Re1 g6 9. e5 Bg7 10. c3 0-0 11. Nf1 h6 12. h4 Qc7 13. N1h2 Kh7 14. Ng4 Ng8 15. Bf4 Qd8 16. Qd2 Nce7 17. d4 cxd4 18. cxd4 Bd7 19. Bf1 Nf5 20. Bd3 Re8 21. Kg2 a6 22. Rh1 h5 23. Bg5 Qc8 24. Nf6+ Bxf6 25. Bxf6 Nxf6 26. exf6 Rh8 27. Bxf5 exf5 28. Rhe1 Be6 29. Ng5+ Kg8 30. Rxe6 1-0

[Event "Buenos Aires op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "2"]
[White "De las Heras, Juan Carlos"]
[Black "Spangenberg, Hugo"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2205"]
[BlackElo "2500"]
[PlyCount "70"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 b6 7. Nc3 Nxc3 8. bxc3 Qc7 9. Bd2 Bb7 10. Bd3 d6 11. 0-0 Nd7 12. Re1 dxe5 13. Nxe5 Nxe5 14. Rxe5 Bd6 15. Rh5 g6 16. Rh3 h5 17. c4 0-0-0 18. Rb1 Bf4 19. Bc3 g5 20. d5 g4 21. Rh4 Bg5 22. Bxh8 Rxh8 23. g3 Bxh4 24. gxh4 Kb8 25. Qe1 exd5 26. c5 Rc8 27. cxb6 axb6 28. Qe2 d4 29. Re1 Ka7 30. Qd1 Qc3 31. Qb1 Rc7 32. Kf1 Qd2 33. Qb5 Rc5 34. Qa4+ Ra5 35. Qxd4 Ra3 0-1

[Event "Buenos Aires VII Najdorf op"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "3"]
[White "Langier, Daniel"]
[Black "De las Heras, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2360"]
[BlackElo "2205"]
[PlyCount "34"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 h6 6. Nf3 e4 7. Ne5 Bd6 8. d4 0-0 9. Bf4 a6 10. a3 Re8 11. Qd2 Nbd7 12. Nxd7 Qxd7 13. Nc3 b5 14. Bb3 Bb7 15. 0-0 Bxf4 16. Qxf4 Nxd5 17. Nxd5 Bxd5 1/2-1/2

[Event "Buenos Aires tt"]
[Site "Buenos Aires"]
[Date "1995.??.??"]
[Round "7"]
[White "Martino, Jorge"]
[Black "De las Heras, Juan Carlos"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "2205"]
[PlyCount "44"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nf6 4. Nc3 Be7 5. d4 exd4 6. Nxd4 0-0 7. 0-0 Nc6 8. f3 Nxd4 9. Qxd4 c6 10. a4 Nd7 11. Be3 Qa5 12. b4 Qc7 13. Rad1 Kh8 14. Ne2 Ne5 15. Bb3 c5 16. bxc5 dxc5 17. Qd2 Be6 18. Nc3 c4 19. Ba2 Bb4 20. Bd4 Nc6 21. Nb5 Nxd4 22. Qxd4 Bc5 0-1

