[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.25"]
[Round "5.7"]
[White "Aguero, Joel"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "1472"]
[BlackElo "1594"]
[PlyCount "67"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. Nge2 c4 7. Bd2 Bd7 8. a4 a6 9. b3 cxb3 10. cxb3 Nc6 11. Na2 Bb6 12. Bc3 Nge7 13. Ng3 Rc8 14. Qg4 Ng6 15. Nh5 0-0 16. Bd3 Qh4 17. Qxh4 Nxh4 18. Rd1 Rc7 19. Nb4 Na5 20. Na2 Rfc8 21. Bxa5 Bxa5+ 22. Kf1 Bc3 23. Ke2 Ng6 24. Nxc3 Rxc3 25. Rb1 Ne7 26. Kd2 R3c7 27. Rhc1 Rxc1 28. Rxc1 Rxc1 29. Kxc1 Nc6 30. Kd2 Nxd4 31. Kc3 Nc6 32. f4 h6 33. h4 Kf8 34. g4 1/2-1/2

[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.25"]
[Round "6.7"]
[White "Costa, Nadia"]
[Black "Barrera, Ulises"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1594"]
[BlackElo "1574"]
[PlyCount "45"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nc6 4. d4 d5 5. e5 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. Nc3 Nf5 9. Be3 Bd7 10. Qd2 Bb4 11. 0-0 Rc8 12. Rfc1 Na5 13. Rab1 0-0 14. Bd3 Nc4 15. Qe2 Nfxe3 16. fxe3 f6 17. exf6 Rxf6 18. Bxc4 Rxc4 19. Ne5 Rc7 20. Qg4 Bd6 21. Nxd5 Rxc1+ 22. Rxc1 Qxb2 23. Nxf6+ 1-0

[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.25"]
[Round "4.5"]
[White "Costa, Nadia"]
[Black "Hase, Salim"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1594"]
[BlackElo "1601"]
[PlyCount "80"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Be7 5. d3 d6 6. h3 Na5 7. Bb3 Nxb3 8. axb3 0-0 9. 0-0 Ne8 10. d4 exd4 11. Nxd4 c5 12. Nf3 Nc7 13. Nd5 Nxd5 14. Qxd5 Qc7 15. Bf4 Be6 16. Qd2 f5 17. e5 d5 18. Rfe1 Kh8 19. Bg5 d4 20. Bxe7 Qxe7 21. Qg5 Qd7 22. Rad1 a5 23. Qf4 h6 24. Qd2 Qe7 25. Qd3 g5 26. Nd2 Rg8 27. Nc4 g4 28. Nd6 Raf8 29. hxg4 Rxg4 30. Qh3 Qg5 31. Rd3 Rh4 32. Qf3 Rg8 33. g3 Rg4 34. Kg2 Rf4 35. Qxb7 Rg4 36. Nf7+ Bxf7 37. Qxf7 Rg7 38. Qf8+ Kh7 39. e6 f4 40. Qa8 fxg3 0-1

[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.24"]
[Round "3.6"]
[White "Costa, Nadia"]
[Black "Nardi, Hector Fernando"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1594"]
[BlackElo "1537"]
[PlyCount "101"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3 Nf6 5. d3 0-0 6. 0-0 Nc6 7. Be3 Na5 8. Bb3 Bd7 9. Ba4 Bxa4 10. Qxa4 Nc6 11. Nbd2 d5 12. Rad1 h6 13. h3 Qd7 14. Nb3 a6 15. Nc5 Bxc5 16. Bxc5 Rfd8 17. Rfe1 b6 18. Ba3 b5 19. Qc2 Qe6 20. b3 d4 21. cxd4 exd4 22. Rc1 b4 23. Qxc6 bxa3 24. Qxe6 fxe6 25. Rxc7 Ne8 26. Rc4 Rac8 27. Rec1 Nd6 28. Rxc8 Rxc8 29. Rxc8+ Nxc8 30. Nxd4 Kf7 31. Nc2 Kf6 32. d4 Ne7 33. Nxa3 Nc6 34. Nc2 g5 35. Kf1 h5 36. Ke2 g4 37. hxg4 hxg4 38. Ke3 e5 39. d5 Nd8 40. f4 gxf3 41. gxf3 Nb7 42. Nb4 Nc5 43. Nd3 Nd7 44. f4 exf4+ 45. Kxf4 Nb6 46. e5+ Ke7 47. d6+ Ke8 48. e6 Nd5+ 49. Ke5 Nc3 50. Nb4 a5 51. Nc6 1-0

[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.24"]
[Round "1.9"]
[White "Donadio, Matias Nicolas"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C15"]
[BlackElo "1594"]
[PlyCount "54"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. d4 Bb4 4. Bd2 dxe4 5. Nxe4 Qxd4 6. c3 Qxe4+ 7. Be2 Bc5 8. Nf3 Nf6 9. 0-0 Nbd7 10. Ng5 Qe5 11. h3 0-0 12. g3 Qxg3+ 13. Kh1 Bxf2 14. Rxf2 Qxf2 15. Qf1 Qc5 16. b4 Qe5 17. Qg2 Rd8 18. Rd1 Nf8 19. h4 Bd7 20. Rf1 Bc6 21. Bf4 Bxg2+ 22. Kxg2 Qxe2+ 23. Kg1 Ng6 24. Bc1 Nxh4 25. Rf2 Rd1+ 26. Kh2 Qxf2+ 27. Kh3 Rh1# 0-1

[Event "Santa Fe de los Reyes Memorial 2nd"]
[Site "Santa Fe"]
[Date "2019.08.24"]
[Round "2.1"]
[White "Pigatto, Rodolfo Luis"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1911"]
[BlackElo "1594"]
[PlyCount "53"]
[EventDate "2019.08.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 Be7 5. Bg2 0-0 6. Ngf3 b6 7. e5 Nfd7 8. 0-0 c5 9. Re1 Nc6 10. Qe2 Bb7 11. Nf1 Rc8 12. h4 Re8 13. N1h2 b5 14. Bh3 Nb6 15. Ng5 Bxg5 16. Bxg5 Qc7 17. Ng4 Nd4 18. Qd1 Nd7 19. Rc1 Qc6 20. h5 Nf5 21. h6 d4 22. Re4 c4 23. hxg7 Nxg7 24. Nf6+ Nxf6 25. Bxf6 Nf5 26. Qh5 h6 27. Bxf5 1-0

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.10"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Knuttzen, Joaquin"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1596"]
[PlyCount "48"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Nf3 Bd6 6. 0-0 0-0 7. Bg5 Be6 8. Nbd2 Nbd7 9. c3 h6 10. Bh4 c5 11. dxc5 Bxc5 12. Nb3 Bb6 13. Re1 Bg4 14. h3 Bh5 15. Bf5 Nc5 16. Nxc5 Bxc5 17. Bxf6 Qxf6 18. Qxd5 Bxf3 19. Qxf3 Rfe8 20. Rad1 Rxe1+ 21. Rxe1 Rd8 22. Be4 Qxf3 23. Bxf3 Rd2 24. Re2 Rd7 1/2-1/2

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.10"]
[Round "6"]
[White "Monserrat, Marcelo"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1490"]
[BlackElo "1596"]
[PlyCount "72"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. Bb5 Bd7 6. 0-0 Nxe5 7. fxe5 Bxb5 8. c4 Bxc4 9. d3 Bb5 10. Nc3 Bc6 11. Ng5 Nh6 12. Qf3 Qe7 13. a4 g6 14. Nb5 Bxb5 15. axb5 Bg7 16. b4 0-0 17. bxc5 Qxc5+ 18. Be3 Qe7 19. d4 Nf5 20. Nh3 Nxe3 21. Qxe3 Qh4 22. b6 a6 23. Ra5 Rac8 24. Nf2 Rc4 25. g4 Bh6 26. Qe2 Rxd4 27. Rc5 Rb4 28. Rc7 Rxb6 29. Qf3 Qd8 30. g5 Bxg5 31. Ng4 Qxc7 32. Nf6+ Bxf6 33. exf6 Qe5 34. Qh3 h5 35. Qf3 Rb2 36. Qh3 Rc8 0-1

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.10"]
[Round "4"]
[White "Pigatto, Rodolfo Luis"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1938"]
[BlackElo "1596"]
[PlyCount "60"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. f4 e6 2. Nf3 d5 3. e3 c5 4. b3 Nc6 5. Bb2 Nf6 6. Bb5 Bd7 7. 0-0 Be7 8. Bxc6 Bxc6 9. Qe2 0-0 10. Ne5 Rc8 11. d3 Qb6 12. Nd2 Rfd8 13. Rf3 Qc7 14. Rh3 d4 15. e4 Be8 16. Rf1 h6 17. g4 Nh7 18. g5 f6 19. gxf6 Bxf6 20. Ng4 Qf7 21. Kh1 Kh8 22. Nc4 b5 23. Nce5 Bxe5 24. Nxe5 Qe7 25. Bc1 Nf6 26. Rg1 Rc7 27. Ng4 Bc6 28. Nxh6 gxh6 29. Rg6 Rg8 30. Rgxh6+ Kg7 1-0

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.09"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Barrera, Ulises"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1596"]
[PlyCount "95"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 g6 4. d4 cxd4 5. cxd4 Bg7 6. Nc3 e6 7. Be2 Nf6 8. Bg5 h6 9. Be3 0-0 10. h3 Bd7 11. Qd2 Nc6 12. Bxh6 a6 13. 0-0 b5 14. Bd3 Qc7 15. Rac1 Qb7 16. Bxg7 Kxg7 17. Qf4 e5 18. dxe5 dxe5 19. Qg5 Rad8 20. Nd5 Nxd5 21. exd5 Nb4 22. Qxe5+ Kg8 23. Bb1 Rfe8 24. Qg5 Qxd5 25. Qxd5 Nxd5 26. Rfe1 Nf4 27. Rcd1 Rxe1+ 28. Rxe1 Bc6 29. Be4 Bxe4 30. Rxe4 Rd1+ 31. Re1 Rxe1+ 32. Nxe1 Ne2+ 33. Kf1 Nc1 34. a3 Kf8 35. f3 f5 36. g3 Ke7 37. Kf2 Kf6 38. Ke3 a5 39. Nd3 Nb3 40. f4 Ke6 41. g4 fxg4 42. hxg4 Kf6 43. Ke4 Kf7 44. Kd5 a4 45. Kc6 Ke6 46. Kxb5 Kd5 47. Kxa4 Kc4 48. Ne5+ 1-0

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.09"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Scharfspitz, Marcos"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1596"]
[PlyCount "32"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 Nf6 3. Nc3 d6 4. Nf3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5 Bb4 8. 0-0-0+ Ke7 9. Nd5+ Kf8 10. Nxf6 Be7 11. Nd5 f6 12. Be3 Be6 13. Nxc7 Kf7 14. Nxe6 Rad8 15. Nxd8+ Nxd8 16. Bc4+ Ke8 1-0

[Event "Santa Fe Laguna Paiva op"]
[Site "Santa Fe"]
[Date "2019.03.09"]
[Round "2"]
[White "Dib, Nadir"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "A23"]
[WhiteElo "1765"]
[BlackElo "1596"]
[PlyCount "84"]
[EventDate "2019.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nc3 Bc5 5. e3 d6 6. Nge2 Be6 7. d4 exd4 8. exd4 Bb6 9. Qd3 0-0 10. 0-0 d5 11. c5 Bc7 12. Nf4 Re8 13. Re1 Qd7 14. Nxe6 Rxe6 15. Bd2 Na6 16. Rxe6 Qxe6 17. Re1 Qd7 18. a3 h6 19. b4 Re8 20. Qb1 Rxe1+ 21. Qxe1 Qe6 22. b5 Qxe1+ 23. Bxe1 Nb8 24. a4 Ba5 25. Kf1 Bc7 26. Ke2 Nbd7 27. Kd3 Nf8 28. Na2 Ne6 29. Nb4 Ba5 30. Bd2 Bxb4 31. Bxb4 Ng4 32. f3 Nf6 33. Bd2 Kf8 34. Bh3 Ke7 35. Be3 Nd7 36. Kc3 Ng5 37. Bg2 Ne6 38. Kb4 Kd8 39. Bf1 Kc7 40. h4 Nf6 41. g4 Ng8 42. f4 Nf6 1-0

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.19"]
[Round "5"]
[White "Cena, Mario"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1293"]
[PlyCount "24"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bf4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. Ne5 Bf5 8. 0-0 Bd6 9. Nd2 0-0 10. a3 Nbd7 11. b3 Bxe5 12. dxe5 Nxe5 0-1

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.19"]
[Round "4"]
[White "Costa, Nadia"]
[Black "Hevia, Lautaro"]
[Result "1-0"]
[ECO "B27"]
[BlackElo "1575"]
[PlyCount "55"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 cxd4 5. cxd4 d5 6. e5 Nc6 7. Nc3 Bg4 8. Be2 Nh6 9. h3 Bxf3 10. Bxf3 e6 11. Be3 0-0 12. 0-0 f6 13. Qd2 Nf5 14. exf6 Qxf6 15. Rae1 Nfxd4 16. Bxd4 Nxd4 17. Bg4 Nf5 18. Qd3 Rad8 19. Re2 h5 20. Bxf5 Qxf5 21. Qb5 d4 22. Qxf5 gxf5 23. Nb5 d3 24. Rd2 Rd7 25. f4 a6 26. Na3 Bd4+ 27. Kh1 Be3 28. Rdd1 1-0

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.19"]
[Round "6"]
[White "Costa, Nadia"]
[Black "Hutt, Alejandro Gabriel"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "2031"]
[PlyCount "105"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 g6 5. Bc4 Bg7 6. c3 0-0 7. 0-0 Nb6 8. Bb3 a5 9. a4 Na6 10. Be3 Nd5 11. Bg5 h6 12. Bh4 Be6 13. Re1 Re8 14. Ne5 g5 15. Bg3 c5 16. Na3 cxd4 17. cxd4 Rc8 18. Nb5 Nab4 19. Qd2 Nf4 20. Bxe6 Nxe6 21. Rac1 Qd5 22. h3 Red8 23. Nf3 Rxc1 24. Rxc1 Nc6 25. Nc3 Qf5 26. d5 Bxc3 27. Qxc3 Rxd5 28. Qe3 Qd3 29. Qxd3 Rxd3 30. Ne5 Nxe5 31. Bxe5 f6 32. Bc3 Nf4 33. Re1 Nd5 34. Bxa5 Kf7 35. Rc1 b6 36. Bc3 Ke6 37. Kf1 Nxc3 38. bxc3 Kd5 39. Ke2 Kc4 40. Rb1 Rd6 41. Rc1 Kb3 42. c4 Kb4 43. Ke3 e5 44. Rc2 Kxa4 45. c5 bxc5 46. Rxc5 Kb4 47. Rc2 Kb3 48. Rc1 h5 49. Ke4 Rd4+ 50. Ke3 f5 51. Rc5 Re4+ 52. Kd3 Kb4 53. Rc1 0-1

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.18"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Avalos, Julio"]
[Result "0-1"]
[ECO "C40"]
[BlackElo "1661"]
[PlyCount "115"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. exf5 e4 4. Ne5 Nf6 5. d4 d6 6. Nc4 Bxf5 7. Nc3 Be7 8. Ne3 Qd7 9. Bc4 c6 10. d5 a6 11. 0-0 c5 12. a4 b6 13. Ne2 0-0 14. Nf4 Rd8 15. Nxf5 Qxf5 16. Ne6 Nbd7 17. Nxd8 Rxd8 18. Be3 Ne5 19. Be2 Rf8 20. f3 exf3 21. Bxf3 Nxf3+ 22. Rxf3 Qxd5 23. Qe2 Qb7 24. Re1 d5 25. Bg5 Ne4 26. Rxf8+ Bxf8 27. Bf4 b5 28. axb5 axb5 29. Qg4 Qe7 30. Rd1 c4 31. Qf3 Qa7+ 32. Be3 Bc5 33. Bxc5 Qxc5+ 34. Kf1 g6 35. Ke2 b4 36. Qe3 Qc6 37. Qd4 Qe6 38. Qe3 Qg4+ 39. Qf3 Qe6 40. Qe3 Qe5 41. Rd4 Qxh2 42. Qf3 Qe5 43. Rxe4 dxe4 44. Qe3 Qh5+ 45. Kd2 Qa5 46. Qxe4 c3+ 47. bxc3 bxc3+ 48. Kd3 g5 49. Qc4+ Kf8 50. Qxc3 Qf5+ 51. Kd4 Qd7+ 52. Ke3 Qa7+ 53. Kf3 h6 54. Qc4 Kg7 55. Qd5 Kg6 56. Qd6+ Kg7 57. Qe5+ Kf8 58. c4 0-1

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.18"]
[Round "3"]
[White "Dib, Nadir"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "1779"]
[PlyCount "58"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nf3 d6 5. Nc3 Be6 6. b3 Be7 7. Bb2 Nbd7 8. d4 exd4 9. Nxd4 0-0 10. Nxe6 fxe6 11. 0-0 e5 12. Qc2 Qe8 13. Rad1 Rd8 14. b4 Qh5 15. h3 Nb6 16. Qb3 Kh8 17. e4 h6 18. Rd3 Qf7 19. Nd1 Qxc4 20. Ne3 Qxb3 21. Rxb3 g6 22. f4 exf4 23. gxf4 Kh7 24. f5 Nh5 25. fxg6+ Kxg6 26. Nf5 Bf6 27. e5 Bxe5 28. Be4 Nf6 29. Bb1 Kh5 1-0

[Event "ARG-ch sf U1700/2200"]
[Site "Laguna Paiva"]
[Date "2018.08.18"]
[Round "2"]
[White "Vera, Hernan"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "61"]
[EventDate "2018.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. d4 cxd4 5. Nxd4 Bd7 6. Be3 Nc6 7. Nxc6 bxc6 8. Be2 Qc7 9. Bf4 Ne7 10. Bd3 c5 11. c4 dxc4 12. Bxc4 Ng6 13. Qf3 Qc6 14. Nd2 Qxf3 15. Nxf3 Nxf4 16. 0-0 Bc6 17. g3 Ng6 18. Rfe1 Bxf3 19. Re3 Bc6 20. Bd3 Ne7 21. a4 Nd5 22. Be4 Be7 23. Re2 0-0 24. b3 Rab8 25. Rb1 Rb4 26. Bxd5 Bxd5 27. Re3 Rfb8 28. h3 Rxb3 29. Rexb3 Rxb3 30. Kf1 c4 31. Ke1 0-1

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.04"]
[Round "6"]
[White "Sanseverino, Victoria"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "1877"]
[BlackElo "1894"]
[PlyCount "79"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bg5 Be7 7. Nxf6+ Nxf6 8. Bd3 0-0 9. 0-0 b6 10. Re1 Bb7 11. c3 Rc8 12. Qc2 h6 13. Bxf6 Bxf6 14. Ne5 c5 15. dxc5 Bxe5 16. Rxe5 Rxc5 17. Rxc5 bxc5 18. Rd1 Qb6 19. Re1 Rd8 20. h3 a5 21. Rd1 Rb8 22. Be2 Bd5 23. c4 Bb7 24. b3 Rd8 25. Rxd8+ Qxd8 26. Qd3 Qxd3 27. Bxd3 Kf8 28. h4 Ke7 29. g3 e5 30. f4 Ke6 31. Kf2 e4 32. Bc2 f5 33. Ke3 Bc6 34. Bd1 Kf6 35. Be2 g5 36. hxg5+ hxg5 37. fxg5+ Kxg5 38. Bd1 Bb7 39. Be2 Bc6 40. Bd1 1/2-1/2

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.03"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Romano, Leonela"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1894"]
[BlackElo "1869"]
[PlyCount "46"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 Nc6 7. 0-0 cxd4 8. cxd4 Be7 9. Nc3 Qd8 10. Be3 0-0 11. Rc1 Nd5 12. Qc2 Re8 13. Rfd1 Nxe3 14. fxe3 Bg5 15. Nxg5 Qxg5 16. Qe4 e5 17. Kf2 Bf5 18. Qf3 exd4 19. exd4 Rad8 20. d5 Nd4 21. Qg3 Qxg3+ 22. hxg3 Nxe2 23. Nxe2 h6 1/2-1/2

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.03"]
[Round "4"]
[White "Pacheco, Natalia"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1519"]
[BlackElo "1894"]
[PlyCount "45"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. e5 c5 4. c3 Nc6 5. Bb5 Bd7 6. Nf3 Nxe5 7. Bxd7+ Nxd7 8. 0-0 Ngf6 9. Bg5 Qc7 10. Bxf6 Nxf6 11. Ne5 Bd6 12. Re1 0-0 13. Nd2 Rac8 14. Ndf3 Ne4 15. Rc1 Rfd8 16. c4 Qb6 17. b3 cxd4 18. Qxd4 Bc5 19. Qd2 Nxd2 20. Nxd2 Bxf2+ 21. Kf1 Bxe1 22. Kxe1 Qe3+ 23. Kd1 0-1

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.02"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Lovece, Ruth"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1894"]
[BlackElo "2146"]
[PlyCount "136"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. f3 Bh5 8. Ne2 e6 9. 0-0 Be7 10. Nd2 a6 11. Re1 0-0 12. Bg3 Bg6 13. Nf4 b5 14. Nxg6 hxg6 15. a3 Qb6 16. Bf2 Na5 17. Qe2 Nc4 18. Nb3 Nd7 19. Rab1 Rfc8 20. Rec1 Rc6 21. Be3 Rac8 22. Bxc4 bxc4 23. Nd2 Qc7 24. Nf1 Rb8 25. Qd2 Bd6 26. Qc2 Rcb6 27. h3 Qb7 28. Qa4 Qc6 29. Qc2 R6b7 30. Nd2 Nb6 31. b4 cxb3 32. Rxb3 Nc4 33. Rxb7 Rxb7 34. Nxc4 Qxc4 35. a4 Rb3 36. Bd2 Qxa4 37. c4 dxc4 38. Qxc4 Qxc4 39. Rxc4 Bg3 40. Kf1 Rb2 41. Be3 Ra2 42. f4 Kf8 43. Rc6 Ke7 44. Rc7+ Kf6 45. Rc5 a5 46. Rb5 a4 47. Rc5 a3 48. Rc3 Ra1+ 49. Ke2 a2 50. Ra3 Re1+ 51. Kf3 a1Q 52. Rxa1 Rxa1 53. Kxg3 Rf1 54. Kg4 Ke7 55. Kg3 Kd6 56. Bf2 Kd5 57. Kf3 f6 58. Ke3 Ra1 59. Kf3 Ra3+ 60. Ke2 Ke4 61. g3 Ra2+ 62. Kf1 Kf3 63. Be1 Ra1 64. h4 Rd1 65. f5 gxf5 66. h5 Rxd4 67. Bf2 Rd1+ 68. Be1 e5 0-1

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.02"]
[Round "2"]
[White "Plazaola, Maria de los Angele"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2088"]
[BlackElo "1894"]
[PlyCount "90"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Be7 8. Bd3 0-0 9. 0-0 c5 10. dxc5 Qc7 11. Bf4 Qxc5 12. Qf3 Nd5 13. Bg3 f5 14. c4 Nf6 15. Bf4 Bd6 16. b4 Qxb4 17. Rab1 Qc5 18. Rb5 Qc7 19. Re1 a6 20. c5 axb5 21. cxd6 Qxd6 22. Ng6 Qb6 23. Nxf8 Kxf8 24. Qe2 Bd7 25. Be5 Ng4 26. Bc3 Qd6 27. g3 b4 28. Ba1 Re8 29. h3 Nf6 30. Be5 Qe7 31. Qd2 Kg8 32. Bb2 Qc5 33. Qg5 Qf8 34. Bc2 h6 35. Qd2 Bc6 36. Bb3 Nd5 37. Re5 Kh7 38. Qe2 Qd6 39. Qd3 Kh8 40. Qd4 Qd7 41. Qh4 Nf6 42. Re1 Qd2 43. Rb1 e5 44. Qc4 Be4 45. Rd1 Qxb2 0-1

[Event "ARG-ch U18 Girls"]
[Site "Villa Carlos Paz"]
[Date "2004.09.01"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Liendro, Constanza"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1894"]
[PlyCount "109"]
[EventDate "2004.09.01"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. c3 Bg4 5. d3 Be7 6. Be3 Nf6 7. Nbd2 a6 8. d4 d5 9. exd5 Nxd5 10. Qc2 exd4 11. cxd4 Ndb4 12. Qc3 Bf5 13. 0-0 0-0 14. a3 Nd5 15. Qc1 Bf6 16. Nb3 Nb6 17. Rd1 Re8 18. Be2 Qd5 19. Nc5 Rab8 20. Qc3 Na7 21. a4 Nd7 22. b4 Nc6 23. Bc4 Qd6 24. Rac1 Nb6 25. Bb3 Nd5 26. Bxd5 Qxd5 27. b5 axb5 28. axb5 Ne7 29. Ne5 Ng6 30. Nf3 Bg4 31. Qb3 Bxf3 32. gxf3 Qxf3 33. Bd2 Qg4+ 34. Qg3 Qxg3+ 35. hxg3 Bxd4 36. Bb4 Bxc5 37. Bxc5 Rbc8 38. Be3 h6 39. Rd7 Re7 40. Rcd1 Rxd7 41. Rxd7 Ne5 42. Re7 Nc4 43. Bf4 Na3 44. b6 cxb6 45. Rxb7 Nc4 46. Kf1 Re8 47. Bc7 Re6 48. Bf4 g5 49. Bb8 Kg7 50. Ba7 Kg6 51. Rc7 Na5 52. Rc2 h5 53. Ra2 Nc4 54. Rc2 b5 55. Bd4 1/2-1/2

[Event "ARG-ch sf U18 Girls"]
[Site "San Miguel del Monte"]
[Date "2004.03.03"]
[Round "2"]
[White "Costa, Nadia"]
[Black "Romano, Leonela"]
[Result "1/2-1/2"]
[ECO "B22"]
[BlackElo "1807"]
[PlyCount "52"]
[EventDate "2004.03.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 cxd4 6. Qxd4 Nc6 7. Qd1 h6 8. Be3 Nf6 9. Bd3 Ng4 10. Bf4 Bd6 11. Qe2+ Be6 12. Bg3 0-0 13. 0-0 Bxg3 14. hxg3 Qf6 15. Na3 a6 16. Nc2 Nce5 17. Nxe5 Nxe5 18. Nd4 Nxd3 19. Qxd3 Rfe8 20. Rfe1 Re7 21. Ne2 Qf5 22. Qd2 Rae8 23. Nf4 Qg5 24. Rad1 Bg4 25. f3 Bxf3 26. gxf3 Qxg3+ 1/2-1/2

[Event "ARG-ch sf U18 Girls"]
[Site "San Miguel del Monte"]
[Date "2004.03.03"]
[Round "1"]
[White "Parma, Pamela"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "42"]
[EventDate "2004.03.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. Bf4 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Be7 7. Nbd2 b6 8. Qe2 Bb7 9. Ne5 Rc8 10. Ndf3 Nxe5 11. Nxe5 c4 12. Bc2 b5 13. g4 Nd7 14. Nxd7 Qxd7 15. g5 Bd6 16. h4 Qe7 17. h5 e5 18. dxe5 Bxe5 19. Bxe5 Qxe5 20. f4 Qe7 21. Rg1 b4 1/2-1/2

[Event "ARG-ch U18 Girls"]
[Site "Esperanza"]
[Date "2003.09.18"]
[Round "2"]
[White "Costa, Nadia"]
[Black "Nejanky, Maisa"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1989"]
[PlyCount "81"]
[EventDate "2003.09.17"]
[EventType "tourn"]
[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 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. h3 0-0 7. d3 Nbd7 8. Be3 b6 9. Nbd2 Bb7 10. Rc1 Rc8 11. Bf4 e5 12. Bg3 Qe7 13. Nh2 d5 14. Bf3 d4 15. c4 Ne8 16. Re1 Bc6 17. Qe2 h5 18. Nhf1 Bh6 19. Rc2 Ng7 20. Nb1 Ne6 21. a3 Ba4 22. b3 Bxb3 23. Rb2 Ba4 24. Nbd2 Kg7 25. Nb3 Rh8 26. Nfd2 Rcg8 27. Bh2 Bf4 28. Nf1 Bxh2+ 29. Nxh2 Nf4 30. Qf1 Qe6 31. Nd2 g5 32. Be2 Kf8 33. g4 hxg4 34. Bxg4 Qh6 35. Ndf3 f6 36. Rd2 Nxh3+ 37. Bxh3 Qxh3 38. Qxh3 Rxh3 39. Kg2 Rgh8 40. Ng4 Ke7 41. Rg1 0-1

[Event "ARG-ch U18 Girls"]
[Site "Esperanza"]
[Date "2003.09.18"]
[Round "3"]
[White "Meza, Anahi Silvina"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2133"]
[PlyCount "45"]
[EventDate "2003.09.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 0-0 8. Bd3 Nbd7 9. Nf3 Re8 10. h3 h6 11. Bf4 Nf8 12. g4 Ne6 13. Be5 a6 14. 0-0-0 b5 15. Ne2 Bb7 16. Kb1 a5 17. Bf5 Qb6 18. Bxe6 fxe6 19. Qg6 c5 20. g5 hxg5 21. Nxg5 Bd8 22. Qf7+ Kh8 23. Nf4 1-0

[Event "ARG-ch U18 Girls"]
[Site "Esperanza"]
[Date "2003.09.17"]
[Round "1"]
[White "Plazaola, Maria de los Angele"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2047"]
[PlyCount "87"]
[EventDate "2003.09.17"]
[EventType "tourn"]
[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. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Nf6 6. Bg5 c6 7. h3 Nbd7 8. 0-0 Qc7 9. Nd2 b6 10. Re1 0-0 11. Bh4 c5 12. c3 Re8 13. Rc1 Bb7 14. Bb1 Ne4 15. Nxe4 dxe4 16. Qd2 Nf8 17. Qe3 Ng6 18. Bg3 f5 19. Bxd6 Qxd6 20. g3 Rad8 21. Rcd1 c4 22. Bc2 Bd5 23. Ra1 Re7 24. b3 Rf8 25. Nf4 Nxf4 26. gxf4 Rf6 27. Kh1 Qe6 28. b4 Rh6 29. Rg1 Rh4 30. Rg5 h6 31. Rg3 Qd6 32. Rag1 Qxf4 33. Bd1 Qxe3 34. fxe3 f4 35. exf4 Rxf4 36. Kh2 e3 37. Re1 e2 38. Bxe2 Rf2+ 39. Kg1 Rexe2 40. Rxe2 Rxe2 41. a4 Rd2 42. Re3 Rd3 43. Re5 Bf7 44. Re7 0-1

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.07"]
[Round "6"]
[White "Navarro, Gisele"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "72"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. d3 Nf6 4. Be2 Nbd7 5. Nf3 b6 6. a3 Bb7 7. 0-0 dxe4 8. dxe4 Nxe4 9. Nxe4 Bxe4 10. Be3 Bd6 11. g3 0-0 12. Qd4 Bxc2 13. Ng5 h6 14. Rac1 Bg6 15. Ne4 Be5 16. Qd2 Bxe4 17. f3 Bb7 18. Rc4 Nf6 19. Qc2 Nd5 20. Qe4 Nxe3 21. Qxe3 Bxb2 22. Rg4 Qf6 23. Qd3 Rad8 24. Qe3 Bd4 25. Qf2 Bxf2+ 26. Rxf2 Qa1+ 27. Rf1 Qxa3 28. Rc4 Rd2 29. Rf2 Ba6 30. Re4 Bxe2 31. Rexe2 Rxe2 32. Rxe2 Rd8 33. Re1 Qxf3 34. Rf1 Qe3+ 35. Kg2 Rd2+ 36. Kh1 Qe2 0-1

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.06"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Parma, Pamela"]
[Result "1/2-1/2"]
[ECO "C40"]
[PlyCount "78"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Nc3 Qg6 7. Ne3 Nf6 8. Be2 c6 9. f3 d5 10. fxe4 dxe4 11. d5 Bb4 12. Bd2 0-0 13. a3 Bd6 14. 0-0 Kh8 15. dxc6 Nxc6 16. Ncd5 Nxd5 17. Rxf8+ Bxf8 18. Nxd5 Bc5+ 19. Be3 Bh3 20. Bf1 Bxe3+ 21. Nxe3 Rd8 22. Qe1 Be6 23. Rd1 Rf8 24. Nc4 Bxc4 25. Bxc4 Ne5 26. Be2 Qb6+ 27. Kh1 Qxb2 28. Qb4 Qxb4 29. axb4 g6 30. Kg1 Re8 31. Kf2 e3+ 32. Kxe3 Nc6+ 33. Kf2 Nxb4 34. Rb1 Nxc2 35. Rxb7 Nd4 36. Bd3 a5 37. Ra7 Nc6 38. Rc7 Nb4 39. Bb5 Rb8 1/2-1/2

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.05"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Cepeda, Pamela"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "65"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 Nbd7 7. Re1 e5 8. Bg5 c6 9. a4 a5 10. Bf1 Qc7 11. h3 Kh8 12. Be3 Ne8 13. d5 c5 14. Nb5 Qb6 15. Nd2 Ndf6 16. Nc4 Qd8 17. Bd2 Ng8 18. Ra3 f6 19. f4 Ne7 20. fxe5 fxe5 21. Rf3 b6 22. Rxf8+ Bxf8 23. Qf3 Bg7 24. Bg5 Kg8 25. Be2 h6 26. Bxe7 Qxe7 27. Nxb6 Rb8 28. Nc4 Ra8 29. Rf1 Bd7 30. Nb6 Rd8 31. Qc3 Bxb5 32. Bxb5 Qa7 33. Nc4 1-0

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.05"]
[Round "4"]
[White "Pirozzi, Dana"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "77"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[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. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Na3 Nf5 7. Nc2 cxd4 8. cxd4 Qb6 9. Be2 Bd7 10. g4 Nfe7 11. Bd3 0-0-0 12. b3 h6 13. Ba3 Ng8 14. Bxf8 Rxf8 15. Qd2 f6 16. Qe3 Nge7 17. Rf1 fxe5 18. Nxe5 Nxe5 19. Qxe5 Rf6 20. 0-0-0 Nc6 21. Qe3 Rhf8 22. Be2 Qc7 23. Qg3 Qf4+ 24. Qxf4 Rxf4 25. f3 Be8 26. Rd2 Bg6 27. Rfd1 Kd7 28. Ne1 Rc8 29. Kb2 Kd6 30. Ng2 Rf7 31. Ne1 Rfc7 32. Bd3 Bxd3 33. Rxd3 Ne7 34. R3d2 Ng6 35. Ng2 Rf8 36. Rd3 Rcf7 37. Rf1 Nf4 38. Nxf4 Rxf4 39. h3 1/2-1/2

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.04"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Diaz, Carola"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "99"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 g6 4. d4 cxd4 5. cxd4 Bg7 6. Nc3 d6 7. h3 Nf6 8. Be3 b6 9. Bb5 Bd7 10. Rc1 a6 11. Be2 0-0 12. 0-0 b5 13. e5 Ne8 14. Bf4 Rc8 15. Re1 dxe5 16. dxe5 e6 17. Ne4 Nc7 18. Bg5 Ne7 19. Nd6 Ncd5 20. Nxc8 Bxc8 21. Qd2 Qb6 22. Bxe7 Nxe7 23. Qd6 Qxd6 24. exd6 Nd5 25. b3 Rd8 26. Nh2 Bb7 27. Bf3 Rxd6 28. Ng4 h5 29. Bxd5 Rxd5 30. Ne3 Rg5 31. Rc7 Be4 32. f4 Rg3 33. Kh2 h4 34. Rd7 Bh6 35. Rd4 Bxf4 36. Rxe4 Rxe3+ 37. Kg1 Rxe1+ 38. Rxe1 e5 39. Kf1 f5 40. Ke2 e4 41. Rd1 Bc7 42. Rd7 Bf4 43. Ra7 g5 44. Rxa6 Kf7 45. Rb6 g4 46. Rxb5 Kg6 47. a4 Bg5 48. a5 g3 49. a6 f4 50. a7 1-0

[Event "ARG-ch U16 Girls"]
[Site "Esperanza"]
[Date "2002.04.04"]
[Round "2"]
[White "Plazaola, Maria de los Angele"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "93"]
[EventDate "2002.04.05"]
[EventType "swiss"]
[EventRounds "7"]
[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. exd5 exd5 4. Bd3 Bd6 5. Ne2 Nf6 6. Nbc3 0-0 7. Bg5 c6 8. Ng3 Be6 9. Nce2 Re8 10. 0-0 h6 11. Bf4 Qc7 12. Qd2 Bxf4 13. Nxf4 Nbd7 14. Rfe1 Nf8 15. c3 Bd7 16. Bc2 Ne6 17. Nd3 Ng5 18. Ne5 Ng4 19. Nxd7 Rxe1+ 20. Rxe1 Qxd7 21. Bf5 Ne6 22. Bxg4 Rf8 23. Nh5 f5 24. Qe3 Ng5 25. Bd1 Qf7 26. Qe7 Ne4 27. Qxf7+ Kxf7 28. f3 Nd6 29. Nf4 Nc4 30. b3 Nd6 31. Nd3 Nb5 32. Ne5+ Kg8 33. Re3 g5 34. a4 Nd6 35. Bc2 Kg7 36. Nd3 Kf7 37. Re5 Re8 38. Nc5 b6 39. Nd7 Rd8 40. Bxf5 Nxf5 41. Rxf5+ Ke6 42. Rf6+ Kxd7 43. Rxh6 a5 44. Rg6 Kc7 45. Rxg5 Kd6 46. h4 c5 47. h5 1-0

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.06.05"]
[Round "8"]
[White "Barreno, Maria Fernanda"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "99"]
[EventDate "2001.05.29"]
[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 e6 2. Nf3 Nf6 3. Bf4 d5 4. e3 Be7 5. Bd3 0-0 6. 0-0 c5 7. c3 Nc6 8. h3 Bd7 9. Nbd2 Rc8 10. Ne5 Qb6 11. Qb1 h6 12. Ndf3 Nxe5 13. Nxe5 Bb5 14. Bxb5 Qxb5 15. Qc2 cxd4 16. exd4 Ne4 17. Rfe1 Rfd8 18. f3 Nd6 19. a4 Qb6 20. Qf2 Nf5 21. Qe2 a6 22. a5 Qb5 23. Qxb5 axb5 24. a6 bxa6 25. Rxa6 Bd6 26. Ra7 Ne7 27. Rb7 Rb8 28. Rxe7 Bxe7 29. Nc6 Rb7 30. Nxd8 Bxd8 31. Ra1 Bf6 32. Bd6 g5 33. Kf2 Kg7 34. Ra8 Kh7 35. Ke3 Bg7 36. Kd3 Rd7 37. Bc5 Rb7 38. Ra7 Rxa7 39. Bxa7 Kg6 40. Bb8 f6 41. Kc2 Bf8 42. Kb3 Kf7 43. Bc7 Ke8 44. Kc2 Kd7 45. Bg3 h5 46. Kd3 f5 47. Be5 Bd6 48. Bf6 Be7 49. Be5 Bd6 50. Bf6 1/2-1/2

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.06.04"]
[Round "7"]
[White "Costa, Nadia"]
[Black "Plazaola, Maria de los Angele"]
[Result "0-1"]
[ECO "D52"]
[PlyCount "128"]
[EventDate "2001.05.29"]
[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 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Qc2 Bb4 8. 0-0-0 Bxc3 9. bxc3 Ne4 10. Kb2 Nb6 11. Bd3 Na4+ 12. Ka1 Naxc3 13. Rc1 Bd7 14. Ne5 Nxa2 15. Qxa2 Qxa2+ 16. Kxa2 Nxg5 17. f3 f6 18. Ng4 dxc4 19. Bxc4 Nf7 20. Rhe1 b5 21. Bb3 a5 22. Nf2 0-0 23. Nd3 a4 24. Bd1 Rfb8 25. Nc5 Bc8 26. e4 Nd8 27. d5 Kf7 28. d6 Ra7 29. f4 e5 30. f5 g6 31. g4 Ke8 32. Rf1 Rf7 33. Rf2 Bd7 34. Na6 Rb7 35. Nc7+ Kf8 36. Rd2 Kg8 37. Rd3 Ra7 38. Ka3 Rf8 39. Rdc3 Nf7 40. Kb4 Nxd6 41. Ne6 Bxe6 42. fxe6 Nxe4 43. Rxc6 Nf2 44. Rc7 Rfa8 45. R1c6 Rxc7 46. Rxc7 Re8 47. Rd7 Nxd1 48. Rxd1 Rxe6 49. Kxb5 e4 50. Kxa4 f5 51. gxf5 gxf5 52. Kb3 f4 53. Re1 f3 54. Kc2 Kg7 55. Kd2 Kg6 56. Ke3 Kf5 57. h4 h6 58. h5 Ra6 59. Rb1 Ra3+ 60. Kf2 Kf4 61. Rb4 Ra5 62. Rc4 Rxh5 63. Rc3 e3+ 64. Kg1 f2+ 0-1

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.06.03"]
[Round "6"]
[White "Orsini, Romina P"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "119"]
[EventDate "2001.05.29"]
[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 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bd7 9. Ne5 Be7 10. Qf3 c6 11. g4 Qa5+ 12. Bd2 Qd5 13. Qxd5 exd5 14. g5 Ne4 15. Bxe4 dxe4 16. Nxd7 Kxd7 17. 0-0-0 Bd6 18. Rde1 Rae8 19. h3 Re6 20. Rhg1 Rhe8 21. Rg4 f5 22. Rh4 Rh8 23. Rg1 Rg6 24. Re1 Re6 25. c4 Be7 26. Rh5 g6 27. Rh4 h5 28. Bf4 Re8 29. Kc2 Bd8 30. Rd1 e3 31. Bxe3 Rxe3 32. fxe3 Bxg5 33. Rf4 Bxf4 34. exf4 Re4 35. Rg1 Rxf4 36. Rxg6 Rxd4 37. b3 Re4 38. Rg5 h4 39. Kd3 Ke6 40. Rh5 a5 41. Rh7 b5 42. Rh6+ Kd7 43. Rh7+ Kd6 44. Rh6+ Ke5 45. cxb5 cxb5 46. Rh5 Kd5 47. Rxf5+ Re5 48. Rf4 Rh5 49. a3 Kc5 50. b4+ axb4 51. axb4+ Kd5 52. Ke3 Ke5 53. Rg4 Kd5 54. Rd4+ Ke5 55. Re4+ Kd5 56. Kd3 Rh8 57. Rg4 Rh5 58. Ke3 Ke5 59. Kf3 Rf5+ 60. Ke3 1/2-1/2

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.06.01"]
[Round "4"]
[White "Hinojosa, Susana"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "130"]
[EventDate "2001.05.29"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. dxc5 Ng6 7. Bb5 Bxc5 8. b4 Bb6 9. 0-0 Bd7 10. Bxc6 Bxc6 11. Re1 0-0 12. Be3 Bc7 13. Bd4 a5 14. Qd2 Qd7 15. a3 Ra6 16. Qe3 Rfa8 17. Nbd2 Ne7 18. g4 axb4 19. cxb4 Bb5 20. Rec1 Nc6 21. Qc3 Nxd4 22. Nxd4 Bxe5 23. N2f3 Bd6 24. h3 h6 25. Kg2 Bf4 26. Re1 Rc8 27. Qb2 f6 28. Red1 Bc4 29. a4 Rxa4 30. Rxa4 Qxa4 31. Ra1 Qd7 32. b5 Bd3 33. Ra7 e5 34. Nc6 Bxb5 35. Qxb5 Qxc6 36. Qxc6 bxc6 37. Ne1 e4 38. Nc2 c5 39. Ra5 d4 40. Ra4 d3 41. Ne3 d2 42. Nd1 c4 43. Ra2 c3 44. Rc2 Be5 45. Kf1 g6 46. Ke2 f5 47. gxf5 gxf5 48. h4 Kg7 49. Ke3 Rc4 50. Ke2 f4 51. f3 e3 52. Kd3 Rb4 53. Ke2 Rc4 54. Kd3 Rc5 55. Ke2 Kg6 56. Kd3 Kh5 57. Ke2 Kxh4 58. Kf1 Kg3 59. Ke2 h5 60. Kd3 h4 61. Ke2 h3 62. Kd3 h2 63. Ke2 h1Q 64. Nxc3 Bxc3 65. Rxc3 Qe1+ 1-0

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.05.31"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Valverde, Tatiana"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "168"]
[EventDate "2001.05.29"]
[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 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nf3 Nf6 6. 0-0 0-0 7. Bg5 h6 8. Bh4 Bg4 9. Nbd2 Nbd7 10. c3 c6 11. Qc2 Qc7 12. Rae1 Rae8 13. Bg3 Re6 14. Rxe6 Bxe6 15. Re1 Bxg3 16. hxg3 Re8 17. Ne5 Nf8 18. Ndf3 Qc8 19. Nh4 Ng4 20. Nf5 Nxe5 21. dxe5 Bxf5 22. Bxf5 Qc7 23. f4 Ne6 24. Qd2 Qb6+ 25. Kh2 g6 26. Bb1 Ng7 27. g4 Qd8 28. g3 Qd7 29. c4 d4 30. Qd3 Qxg4 31. Qxd4 Nh5 32. Rg1 a6 33. Bd3 Ng7 34. Qb6 Qc8 35. c5 Ne6 36. Rc1 Rd8 37. Qb3 Qd7 38. Be2 Qd4 39. Qc2 Qf2+ 40. Kh3 Nd4 41. Qd1 Qxe2 42. Qxe2 Nxe2 43. Rc2 Nd4 44. Rd2 Ne6 45. Rd6 Kf8 46. Kg4 Ke8 47. b4 Ng7 48. a4 Nf5 49. Rf6 Ke7 50. b5 axb5 51. axb5 cxb5 52. Rb6 Rd7 53. Rxb5 Rc7 54. Rb6 Nd4 55. Rb4 Ne6 56. f5 Nxc5 57. fxg6 fxg6 58. Rb6 Rc6 59. Rb1 b6 60. Kf3 Ke6 61. Rc1 Kxe5 62. Re1+ Kf6 63. Rf1 Re6 64. Kg4+ Kg7 65. Rb1 Nd7 66. Kf3 h5 67. Kf4 Kf6 68. Kf3 g5 69. Rb5 Re5 70. Rb1 Kf5 71. Kf2 g4 72. Rh1 Ke6 73. Rb1 b5 74. Kf1 Kd6 75. Rd1+ Kc6 76. Rc1+ Kb6 77. Rd1 Nc5 78. Rd6+ Ka5 79. Rd1 b4 80. Ra1+ Kb5 81. Rb1 b3 82. Kf2 Kb4 83. Kf1 Na4 84. Kf2 Nc3 0-1

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.05.30"]
[Round "2"]
[White "Ortiz, Nadya Karolina"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2050"]
[PlyCount "61"]
[EventDate "2001.05.29"]
[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 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nxf6+ Nxf6 7. Nf3 c5 8. 0-0 Bd7 9. c3 Be7 10. Re1 0-0 11. Bg5 Rc8 12. Qe2 Re8 13. Rad1 cxd4 14. Nxd4 a6 15. Nf3 Nd5 16. Bxe7 Qxe7 17. Bxh7+ Kf8 18. Be4 Bb5 19. Qd2 Nb6 20. Qf4 Na4 21. Ng5 Nxb2 22. Qh4 Qc7 23. Qh8+ Ke7 24. Qxg7 Qf4 25. Nxe6 Qf6 26. Bxb7 Nd3 27. Rxd3 Qxg7 28. Nxg7+ Kf8 29. Nxe8 Rxe8 30. Rxe8+ Kxe8 31. Rd6 1-0

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.05.29"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Meza, Anahi Silvina"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "50"]
[EventDate "2001.05.29"]
[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 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. Be3 cxd4 8. cxd4 Nf6 9. Nc3 Qd8 10. 0-0 Be7 11. Qa4 0-0 12. Rfd1 Nb4 13. Rac1 Nbd5 14. Bd2 Bd6 15. g3 a6 16. Qb3 Qe7 17. Bg5 Nxc3 18. Rxc3 h6 19. Bxf6 Qxf6 20. Qxb7 Rab8 21. Qxa6 Rxb2 22. Kg2 Qf5 23. Qxd6 Rxe2 24. a4 Ra2 25. Qc6 Ra8 1-0

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.28"]
[Round "7"]
[White "Rolles, Maria Julia"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "56"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. f4 d5 2. g3 Nf6 3. Bg2 Nc6 4. Nf3 e6 5. 0-0 Bd6 6. d3 Qe7 7. Nc3 e5 8. e4 dxe4 9. Nxe5 Nxe5 10. fxe5 Bxe5 11. Nxe4 c6 12. c3 Nxe4 13. Bxe4 Be6 14. Qf3 0-0-0 15. Be3 a6 16. d4 Bc7 17. b4 h5 18. h4 f6 19. a4 Bg4 20. Qg2 Rde8 21. Rfe1 Qxe4 22. Qf2 Qf3 23. Qxf3 Bxf3 24. Kf2 Bg4 25. b5 cxb5 26. axb5 axb5 27. Ra8+ Kd7 28. Ra7 Ra8 0-1

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.27"]
[Round "6"]
[White "Cepeda, Pamela"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "112"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d3 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. Nbd2 0-0 6. 0-0 c5 7. c4 Nc6 8. a3 Re8 9. Qc2 Bd7 10. Nb3 Qb6 11. Be3 Ng4 12. Bg5 Nf6 13. Rab1 Na5 14. Nxa5 Qxa5 15. Bd2 Qa6 16. cxd5 exd5 17. Rfe1 Bb5 18. Qc3 c4 19. dxc4 Bxc4 20. Qa5 Bxe2 21. Qxa6 Bxa6 22. Bc3 Bd3 23. Rbd1 Be4 24. Ng5 Bxg2 25. Kxg2 Rad8 26. Nf3 Kf8 27. Nd4 Ne4 28. Nb5 Nxc3 29. Nxc3 d4 30. Nb5 Bc5 31. Rxe8+ Kxe8 32. b4 Bb6 33. a4 a6 34. a5 axb5 35. axb6 Rd6 36. Kf3 Kd7 37. Rc1 d3 38. Ke3 d2 39. Rd1 Kc6 40. Rxd2 Rxd2 41. Kxd2 Kd5 42. Kd3 f5 43. f3 g5 44. h3 h5 45. h4 f4 46. g4 gxh4 47. g5 h3 48. g6 Ke6 49. g7 Kf7 50. Ke2 h2 51. g8Q+ Kxg8 52. Kf2 h1Q 53. Ke2 Kf7 54. Kd3 Qxf3+ 55. Kd4 Ke6 56. Kc5 Qd5# 0-1

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.26"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Plazaola, Maria de los Angele"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "100"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e3 Nf6 2. f4 d6 3. Nf3 Nc6 4. b3 e5 5. g3 Bf5 6. Bb2 e4 7. Nh4 Bg4 8. Be2 Bh3 9. d3 d5 10. d4 h6 11. Rg1 Qd7 12. g4 h5 13. gxh5 Rh7 14. Nc3 Be7 15. Kd2 Nxh5 16. Bxh5 Bxh4 17. Bg4 Bxg4 18. Qxg4 Qxg4 19. Rxg4 0-0-0 20. Rag1 Bf6 21. R4g2 Ne7 22. Ne2 Nf5 23. Rh1 Nh4 24. Rf2 Nf3+ 25. Kd1 Rdh8 26. Rg2 Nxh2 27. Kc1 Nf3 28. Rxh7 Rxh7 29. Kb1 Rh2 30. Rxh2 Nxh2 31. Ng3 g6 32. c4 c6 33. Kc2 Kd7 34. Kd2 Bh4 35. Nh1 Ng4 36. Ke2 Ke6 37. Ba3 Kf5 38. Bd6 g5 39. a4 f6 40. cxd5 cxd5 41. b4 Nh6 42. fxg5 fxg5 43. Be7 Kg4 44. Bd6 Nf5 45. Bc7 Kh3 46. Nf2+ Bxf2 47. Kxf2 g4 48. b5 g3+ 49. Bxg3 Nxg3 50. a5 Nf5 0-1

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.26"]
[Round "4"]
[White "Orsini, Romina P"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "85"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 4. 0-0 Nbd7 5. d3 e5 6. Nbd2 Bc5 7. Nh4 Be6 8. e4 c6 9. Kh1 Ng4 10. Qe2 Qb6 11. Kg1 h5 12. Nb3 Bf8 13. h3 Ngf6 14. Be3 d4 15. Bd2 g6 16. f4 exf4 17. Bxf4 c5 18. Nf3 Nh7 19. Ng5 Nxg5 20. Bxg5 Bd6 21. Bf4 0-0-0 22. e5 Be7 23. Bd2 Qc7 24. Na5 Nb6 25. Bxb7+ Kb8 26. Qg2 Bd5 27. Bxd5 Nxd5 28. Rxf7 Rhe8 29. Rb1 Ne3 30. Nc6+ Kc8 31. Bxe3 dxe3 32. Nxd8 Kxd8 33. Qd5+ Qd7 34. Qxd7+ Kxd7 35. Re1 Ke6 36. Rf3 Kxe5 37. Rfxe3+ Kd6 38. Re6+ Kd7 39. Rxg6 a5 40. Rh6 Bg5 41. Rxe8 Bxh6 42. Rh8 Bg7 43. Rxh5 1-0

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.25"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Carraro, Denise"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "97"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Nf3 Bd6 6. Bg5 0-0 7. 0-0 b6 8. Nbd2 c5 9. c3 c4 10. Bb1 Nbd7 11. Qc2 Qc7 12. Bh4 Bb7 13. Qf5 Rae8 14. Bg3 Bxg3 15. hxg3 Re2 16. Bc2 Bc8 17. Bd1 Re7 18. Qc2 Ne4 19. Re1 Rfe8 20. Rc1 f5 21. b3 b5 22. Nf1 f4 23. gxf4 Qxf4 24. Ra1 g5 25. a4 a6 26. axb5 axb5 27. Ra5 g4 28. g3 Qf6 29. Nh4 cxb3 30. Qb2 Nb6 31. Bxb3 Nxf2 32. Rxe7 Nh3+ 33. Kg2 Rxe7 34. Ra1 Rf7 35. Qc2 Qf2+ 36. Qxf2 Rxf2+ 37. Kh1 Bb7 38. Re1 Na4 39. Nh2 Nxc3 40. Nxg4 Rb2 41. Nh6+ Kf8 42. Rf1+ Ke8 43. Re1+ Kd7 44. N4f5 Rxb3 45. Re7+ Kc8 46. Nd6+ Kd8 47. Rxb7 Rb1+ 48. Kh2 Nf2 49. Nhf7# 1-0

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.25"]
[Round "2"]
[White "Costa, Nadia"]
[Black "Nejanky, Maisa"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "61"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[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. c3 Nf6 4. Be2 Nbd7 5. d3 g6 6. 0-0 Bg7 7. h3 b6 8. Be3 Bb7 9. Nbd2 0-0 10. Nh2 d5 11. f3 Qc7 12. Qe1 Rac8 13. Qh4 Rfd8 14. Ng4 d4 15. Bg5 dxc3 16. bxc3 Ne5 17. Bf4 Nh5 18. Bh2 Ba6 19. Qg5 f6 20. Qe3 Qd6 21. Rfd1 Qe6 22. Nb3 Nf7 23. f4 Bf8 24. Nf2 Ng7 25. Qg3 Qc6 26. f5 g5 27. h4 h6 28. Ng4 h5 29. hxg5 hxg4 30. g6 Ne5 31. Qh4 1-0

[Event "ARG-ch U16 Girls"]
[Site "Santa Fe"]
[Date "2001.01.24"]
[Round "1"]
[White "Meza, Anahi Silvina"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "D36"]
[PlyCount "76"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 c6 8. Qc2 h6 9. Bh4 Be6 10. Nge2 Nbd7 11. 0-0 Qc7 12. f3 Bd6 13. Bg3 Rac8 14. e4 Bxg3 15. Nxg3 c5 16. Qf2 dxe4 17. Ngxe4 Nxe4 18. Bxe4 cxd4 19. Nb5 Qb6 20. Nxd4 Nf6 21. Nxe6 Qxf2+ 22. Rxf2 Nxe4 23. fxe4 fxe6 24. Rd2 Rc4 25. Re1 Rfc8 26. Kf2 Rc2 27. Rxc2 Rxc2+ 28. Re2 Rxe2+ 29. Kxe2 Kf7 30. Kd3 Ke7 31. Kc4 Kd6 32. Kd4 e5+ 33. Kc4 Kc6 34. b4 b5+ 35. Kd3 Kd6 36. Ke3 Ke6 37. Kf3 Kf6 38. Kg4 Kg6 1/2-1/2

[Event "Pan American-ch U16 Girls"]
[Site "Guaymallen"]
[Date "2001.01.02"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Shitsuka, Rabbith"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "118"]
[EventDate "2001.05.29"]
[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 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be3 cxd4 7. Nxd4 Nf6 8. Nd2 Be7 9. N2f3 0-0 10. Be2 a6 11. a4 Ng4 12. Nxc6 Qxc6 13. Bf4 Qe4 14. Bg3 Rd8 15. Qc1 Bd7 16. Qf4 Qxf4 17. Bxf4 Bc5 18. 0-0 Bc6 19. a5 Rd7 20. h3 Bxf3 21. Bxf3 Nf6 22. Rad1 Rad8 23. c4 Bb4 24. Bc7 Rxd1 25. Rxd1 Rxd1+ 26. Bxd1 Ne4 27. Bf3 Nd2 28. Bxb7 Nxc4 29. Bxa6 Bxa5 30. Bxa5 Nxa5 31. Kf1 Kf8 32. Ke2 Ke7 33. Kd3 Kd6 34. b4 Nc6 35. b5 Nb8 36. Kd4 g6 37. g4 f6 38. Kc4 e5 39. Bb7 f5 40. g5 Nd7 41. Bc6 e4 42. Kd4 Ne5 43. Bxe4 fxe4 44. Kxe4 Nd7 45. f4 Ke6 46. h4 Nb6 47. h5 gxh5 48. f5+ Kf7 49. Ke5 Ke7 50. Kf4 Nc4 51. Kg3 Nd6 52. f6+ Kf7 53. b6 Kg6 54. Kh3 Kf7 55. Kh4 Kg6 56. Kh3 Kf7 57. Kg3 Kg6 58. Kh4 Nb7 59. Kg3 Nd6 1/2-1/2

[Event "ARG-ch U16 Girls"]
[Site "Argentina"]
[Date "2001.??.??"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Bergese, Melisa"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "88"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. 0-0 Nf6 8. Be3 cxd4 9. Nxd4 Bxe2 10. Qxe2 Qd7 11. Rd1 Qc8 12. Nd2 Be7 13. Nc4 Nxd4 14. Rxd4 0-0 15. Rad1 Bc5 16. Rh4 Bxe3 17. Nxe3 Rd8 18. Re1 Qc7 19. Qc2 h6 20. Qc1 Qc5 21. Ng4 Nxg4 22. Rxg4 Qh5 23. h3 Rd5 24. c4 Rd3 25. Qf4 Re8 26. Qc7 Qf5 27. Rf4 Qg6 28. Qxb7 Rxh3 29. Qxa7 Rh5 30. b4 Rg5 31. Qb7 Rd8 32. Qf3 Rd3 33. Qa8+ Kh7 34. Qe4 Qxe4 35. Rfxe4 Ra3 36. R1e2 Rc3 37. c5 Rc1+ 38. Re1 Rc2 39. a4 Rd5 40. a5 Ra2 41. Rc1 Ra4 42. c6 Rd8 43. c7 Rc8 44. Rd4 f6 1-0

[Event "ARG-ch U16 Girls"]
[Site "Argentina"]
[Date "2001.??.??"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Cadelago, Evelyn"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "55"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. c3 Be6 5. Bxe6 fxe6 6. d4 exd4 7. cxd4 d5 8. exd5 exd5 9. 0-0 Be7 10. Nc3 Nf6 11. Ng5 Qd7 12. Re1 0-0 13. a3 Bd6 14. Qd3 g6 15. Nf3 Rfe8 16. Bg5 Nh5 17. Qb5 b6 18. Qxd5+ Kg7 19. Ne5 Nxe5 20. dxe5 Qf5 21. exd6 cxd6 22. Qxf5 gxf5 23. Nb5 Rxe1+ 24. Rxe1 h6 25. Bh4 d5 26. Nc7 Rc8 27. Nxd5 Rc2 28. h3 1-0

[Event "ARG-ch U16 Girls"]
[Site "Argentina"]
[Date "2001.??.??"]
[Round "2"]
[White "Meza, Anahi Silvina"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "29"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 0-0 7. e3 c6 8. Bd3 h6 9. Bf4 Re8 10. Nf3 Nbd7 11. 0-0 Bf8 12. Rab1 Qa5 13. a3 b6 14. b4 Qxa3 15. Rb3 1-0

[Event "ARG-ch U16 Girls"]
[Site "Argentina"]
[Date "2001.??.??"]
[Round "4"]
[White "Rolles, Maria Julia"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "40"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "4"]
[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. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Be7 8. Bd3 0-0 9. 0-0 c5 10. dxc5 Bxc5 11. Bg5 Be7 12. Qe2 Nd5 13. Bd2 Bf6 14. Qe4 g6 15. a4 Ne7 16. Bc3 Bg7 17. Rad1 Qc7 18. Rfe1 Qb8 19. Bd2 b6 20. Re3 Nf5 1-0

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "4"]
[White "Barreno, Maria Fernanda"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "D46"]
[PlyCount "136"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 Be7 5. e3 0-0 6. Bd3 c6 7. 0-0 Nbd7 8. b3 Re8 9. Bb2 Bd6 10. cxd5 exd5 11. Qc2 Nf8 12. h3 Ng6 13. a3 Qe7 14. b4 Bd7 15. Nd2 Bc7 16. Nb3 Qd6 17. g3 Bxh3 18. Rfc1 Qe6 19. Nc5 Qg4 20. Qe2 Qg5 21. Rc2 Nh4 22. Kh2 Bg4 23. Qf1 Qh5 24. Qh1 Bf3 25. Qc1 Ng2+ 26. Kg1 Qh3 27. Be2 Bxe2 28. Nxe2 Ng4 29. Nf4 Nxf4 30. gxf4 Qh2+ 31. Kf1 Bxf4 32. Qd1 h5 33. Qf3 Bxe3 34. Re2 Bh6 35. Rae1 Rxe2 36. Rxe2 Qh4 37. Kg2 Qg5 38. Nxb7 Ne5+ 39. Qg3 Qxg3+ 40. fxg3 Nc4 41. Kf2 g6 42. Kf3 Kg7 43. a4 Rb8 44. Nc5 Rxb4 45. Bc3 Rb8 46. Re7 a6 47. Rc7 Re8 48. Kg2 Ne3+ 49. Kf3 Nd1 50. Ba5 Be3 51. Nb3 Re6 52. Nc5 Rf6+ 53. Ke2 Bxd4 54. Nd7 Nc3+ 55. Bxc3 Bxc3 56. Nxf6 Bxf6 57. Rxc6 a5 58. Rc5 Bd8 59. Rxd5 Bc7 60. Kf3 Kg8 61. Rc5 Bb6 62. Rc6 Bd4 63. Rc4 Bb6 64. Rc6 Bd4 65. Ke4 Bf2 66. Kf3 Bd4 67. Rc4 Bb6 68. Rc6 Bd4 1/2-1/2

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "7"]
[White "Berrios Jimenez, Delenis"]
[Black "Costa, Nadia"]
[Result "0-1"]
[ECO "A25"]
[PlyCount "126"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 d6 5. e3 Be7 6. Nge2 Be6 7. b3 0-0 8. Bb2 Qd7 9. 0-0 Bh3 10. d4 exd4 11. exd4 Bxg2 12. Kxg2 d5 13. cxd5 Nxd5 14. Re1 Bf6 15. Ba3 Rfe8 16. Bb2 Rad8 17. Qd2 h6 18. Nf4 Nxc3 19. Bxc3 Rxe1 20. Rxe1 Nxd4 21. Re4 Qc6 22. f3 Nxb3 23. Qe3 Bxc3 24. axb3 Bd2 25. Qxa7 Bxf4 26. gxf4 Qc2+ 27. Kg3 Qxb3 28. Qc5 Qb6 29. Qxb6 cxb6 30. Re7 Rb8 31. Rd7 b5 32. Rd5 b4 33. Rb5 b3 34. Rxb3 b5 35. h4 f5 36. h5 b4 37. Kf2 Kf7 38. Ke3 g6 39. hxg6+ Kxg6 40. Kf2 Kf6 41. Ke2 h5 42. Kf2 Ke6 43. Kg3 Kd5 44. Kh4 Kc4 45. Rb1 b3 46. Kxh5 b2 47. Kg5 Kc3 48. Kxf5 Kc2 49. Rxb2+ Kxb2 50. Kg4 Kc3 51. f5 Rf8 52. Kg5 Kd4 53. f6 Ke5 54. f4+ Ke6 55. f5+ Kf7 56. Kf4 Kxf6 57. Ke4 Re8+ 58. Kf4 Re5 59. Kg4 Rxf5 60. Kg3 Kg5 61. Kg2 Kg4 62. Kg1 Kg3 63. Kh1 Rf1# 0-1

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "5"]
[White "Costa, Nadia"]
[Black "Linzmayer, Katherine"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "87"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nc6 4. Bb5 Nf6 5. d3 Qc7 6. Bg5 Be7 7. Nbd2 d6 8. 0-0 Bd7 9. d4 cxd4 10. cxd4 h6 11. Be3 0-0 12. Rc1 Qb8 13. Qe2 a6 14. Bd3 Rc8 15. h3 Nb4 16. Rxc8+ Qxc8 17. Nc4 Qc7 18. b3 b5 19. Na3 Nxd3 20. Qxd3 d5 21. e5 Ne4 22. Nc2 Qa5 23. Ra1 f6 24. exf6 Bxf6 25. Ne5 Qd8 26. f3 Ng3 27. Bf2 Nf5 28. Ne3 Qc7 29. Nxf5 exf5 30. f4 Be6 31. Be1 Qd6 32. a4 b4 33. Bd2 a5 34. Rc1 Ra7 35. Rc6 Qb8 36. Rxe6 Qc8 37. Rc6 Qf8 38. Qxf5 Ra8 39. Qe6+ Kh7 40. Qxd5 Rd8 41. Qe4+ Kg8 42. Rc5 Ra8 43. Nd7 Qf7 44. Qxa8+ 1-0

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "1"]
[White "Costa, Nadia"]
[Black "Pirozzi, Dana"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "124"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 c5 3. c3 d5 4. e5 Nc6 5. Nf3 Nge7 6. Na3 cxd4 7. cxd4 a6 8. Bd3 Nf5 9. Nc2 Be7 10. 0-0 Qb6 11. Be2 Nh4 12. Nxh4 Bxh4 13. Rb1 Bd7 14. Be3 Be7 15. f4 Rc8 16. Rf3 Na5 17. b3 Bb5 18. f5 exf5 19. Rxf5 Qg6 20. Bxb5+ axb5 21. Qd3 0-0 22. Rbf1 b4 23. Bd2 Nc6 24. Qf3 Qe6 25. Qg3 Ra8 26. Rf6 Qc8 27. Bh6 Bxf6 28. exf6 g6 29. Bxf8 Qxf8 30. Ra1 Qh6 31. Qe3 Qxe3+ 32. Nxe3 Nxd4 33. Nxd5 Nc6 34. Rd1 Kf8 35. Ra1 Ra5 36. Rd1 Ke8 37. Nc7+ Kf8 38. Nd5 Ke8 39. Nc7+ Kf8 40. Re1 Re5 41. Rxe5 Nxe5 42. Nd5 Nc6 43. Kf2 Ke8 44. Ke3 Kd7 45. Kd3 b5 46. Ke4 Kd6 47. g3 Kc5 48. Ne7 Nd4 49. Kd3 Nf5 50. g4 Nd6 51. g5 Nb7 52. h3 Nd8 53. Ke4 Kd6 54. Nd5 Ne6 55. h4 Kc5 56. Ke5 Nd8 57. Nf4 Nc6+ 58. Ke4 Kd6 59. h5 Ne5 60. hxg6 hxg6 61. Ne2 Nd7 62. Nd4 Kc5 1/2-1/2

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "3"]
[White "Costa, Nadia"]
[Black "Plazaola, Maria de los Angele"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "74"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d6 4. d3 g6 5. Be2 Bg7 6. 0-0 Nf6 7. Bg5 0-0 8. Nbd2 b6 9. Nc4 b5 10. Ne3 Bb7 11. Nd2 a6 12. f4 Re8 13. f5 d5 14. Ng4 Nxg4 15. Bxg4 Ne5 16. Be2 Rc8 17. b3 dxe4 18. Nxe4 c4 19. f6 Bxe4 20. dxe4 Qb6+ 21. Qd4 Qxd4+ 22. cxd4 exf6 23. Bxf6 Bxf6 24. Rxf6 Nc6 25. d5 Nd4 26. Bd1 c3 27. Rc1 Rxe4 28. Rxa6 c2 29. Bf3 Nxf3+ 30. gxf3 Rd4 31. d6 Rd1+ 32. Kf2 Rxc1 33. d7 Rf1+ 34. Kxf1 c1Q+ 35. Ke2 Rc2+ 36. Kd3 Qd2+ 37. Ke4 Qxd7 0-1

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "6"]
[White "Morales Mendoza, Luciana"]
[Black "Costa, Nadia"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "121"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 Qxd5 5. Qg4 g6 6. Bd2 Qd8 7. d5 Qe7 8. 0-0-0 Nf6 9. Qh4 Bd7 10. Nf3 exd5 11. Nxd5 Bxd2+ 12. Rxd2 Nxd5 13. Rxd5 Qxh4 14. Nxh4 0-0 15. Nf3 Bc6 16. Rd3 Nd7 17. Nd4 Be4 18. Re3 Nf6 19. f3 Bd5 20. c4 Bc6 21. Nxc6 bxc6 22. Bd3 Rfe8 23. Rhe1 Kf8 24. Kd2 Rab8 25. Rxe8+ Rxe8 26. Rxe8+ Kxe8 27. Ke3 h5 28. Kd4 Nd7 29. Be4 Nb8 30. h4 Kd7 31. g4 Ke6 32. Kc5 Kd7 33. gxh5 gxh5 34. f4 Na6+ 35. Kd4 Kd6 36. Bf3 Nc5 37. Bxh5 f6 38. Bg4 Nb7 39. Ke4 Nd8 40. Kf5 Ke7 41. h5 Ne6 42. h6 Nf8 43. Bh5 c5 44. Bg6 a5 45. h7 Nxh7 46. Bxh7 Kf7 47. Bg6+ Ke7 48. b3 c6 49. a3 Kf8 50. Kxf6 Kg8 51. Ke7 Kg7 52. f5 Kg8 53. f6 Kh8 54. f7 Kg7 55. f8Q+ Kxg6 56. Qf6+ Kh5 57. Qg7 Kh4 58. Kf6 Kh3 59. Qg1 Kh4 60. Qg2 Kh5 61. Qg5# 1-0

[Event "Pan American-ch U14 Girls"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "2"]
[White "Rojas Solano, Jessenia"]
[Black "Costa, Nadia"]
[Result "1/2-1/2"]
[ECO "D11"]
[PlyCount "77"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. e3 Bg4 5. Nc3 Nbd7 6. cxd5 cxd5 7. Be2 e6 8. 0-0 Bd6 9. Bd2 0-0 10. Rc1 Rc8 11. Qb3 Nb6 12. h3 Bh5 13. Nb5 Ne4 14. Ba5 Bb8 15. g4 Bg6 16. Rxc8 Qxc8 17. Nxa7 Bxa7 18. Bxb6 Bb8 19. Rd1 f5 20. Re1 fxg4 21. hxg4 Rf6 22. Bc5 Qd7 23. Qb6 e5 24. Qa5 Qxg4+ 25. Kf1 Ng3+ 26. fxg3 Rxf3+ 27. Bxf3 Qxf3+ 28. Kg1 Qxg3+ 29. Kf1 Bd3+ 30. Re2 Qf3+ 31. Kg1 Qxe2 32. Qd8+ Kf7 33. Qd7+ Kg6 34. Qe6+ Kh5 35. Qh3+ Kg6 36. Qe6+ Kh5 37. Qh3+ Kg6 38. Qe6+ Kh5 39. Qh3+ 1/2-1/2

