[Event "Natal Potiguar op 4th"]
[Site "Natal"]
[Date "2009.07.12"]
[Round "6"]
[White "Costa, Lais del Castillo"]
[Black "De Macedo, Luiz Soares"]
[Result "1/2-1/2"]
[ECO "C44"]
[BlackElo "1892"]
[PlyCount "75"]
[EventDate "2009.07.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. b3 Nf6 4. d3 d6 5. d4 Nxe4 6. Bb2 Bg4 7. h3 Bxf3 8. Qxf3 Nf6 9. d5 Nb4 10. Bd3 Qe7 11. a3 Nbxd5 12. c4 e4 13. Bxe4 Nb6 14. Nd2 Nxe4 15. Nxe4 0-0-0 16. 0-0 Nd7 17. Rfe1 Ne5 18. Bxe5 dxe5 19. b4 f6 20. Qg4+ Kb8 21. Qf3 Qf7 22. b5 Qxc4 23. Red1 Bc5 24. Rac1 Bxf2+ 25. Kxf2 Qxb5 26. Nc5 Rd4 27. Rb1 Qxb1 28. Rxb1 Rf4 29. Qxf4 exf4 30. Rxb7+ Ka8 31. Rxc7 Rg8 32. Rb7 h5 33. Rb5 Rb8 34. a4 Rxb5 35. axb5 Kb8 36. Na6+ Kb7 37. g4 fxg3+ 38. Kxg3 1/2-1/2

[Event "Natal Potiguar op 4th"]
[Site "Natal"]
[Date "2009.07.11"]
[Round "4"]
[White "Born, Ary"]
[Black "Costa, Lais del Castillo"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "57"]
[EventDate "2009.07.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 Nc6 2. e4 d6 3. Nf3 Nf6 4. d3 Bg4 5. Be3 e5 6. Be2 exf4 7. Bxf4 d5 8. 0-0 dxe4 9. dxe4 Nxe4 10. Qxd8+ Nxd8 11. Nbd2 Bxf3 12. Rxf3 Nxd2 13. Bxd2 Ne6 14. Kf1 Nd4 15. Re3+ Be7 16. Bb4 Nf5 17. Bxe7 Nxe7 18. Bd3 f6 19. Rae1 0-0-0 20. Rxe7 g6 21. Rf7 f5 22. Ree7 Rhf8 23. Rxc7+ Kb8 24. Rxb7+ Ka8 25. Rxa7+ Kb8 26. Rxh7 Rh8 27. Rhb7+ Kc8 28. Rg7 Rhg8 29. Ra8# 1-0

[Event "Natal Potiguar op 4th"]
[Site "Natal"]
[Date "2009.07.11"]
[Round "3"]
[White "Costa, Lais del Castillo"]
[Black "Bahia, Arthur Cavalcanti"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "46"]
[EventDate "2009.07.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 g6 4. Bb5+ Bd7 5. a3 Bg7 6. b4 Bxc3 7. dxc3 Bxb5 8. bxc5 dxc5 9. Rb1 Qxd1+ 10. Kxd1 Bc6 11. e5 Bxg2 12. Be3 b6 13. h4 Bxh1 14. a4 Nc6 15. Nh3 e6 16. Nf2 Bf3+ 17. Ke1 Nge7 18. Ra1 0-0 19. c4 Nf5 20. Nd1 Bxd1 21. Rxd1 Nxe3 22. Rd6 Nxc2+ 23. Kd1 N2b4 0-1

[Event "Natal Potiguar op 4th"]
[Site "Natal"]
[Date "2009.07.10"]
[Round "1"]
[White "Costa, Lais del Castillo"]
[Black "Bonifacio, Lucas Isaac Galdino"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1866"]
[PlyCount "26"]
[EventDate "2009.07.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. c3 Nc6 4. Nf3 d5 5. exd5 exd5 6. Be2 Nf6 7. c4 d4 8. 0-0 Bd6 9. h3 0-0 10. Qc2 Bc7 11. d3 Re8 12. Bg5 h6 13. Bd2 Rxe2 0-1

[Event "Natal Potiguar op 4th"]
[Site "Natal"]
[Date "2009.07.10"]
[Round "2"]
[White "Rocha, Vitor Firmo de Souz"]
[Black "Costa, Lais del Castillo"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1738"]
[PlyCount "59"]
[EventDate "2009.07.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 f5 3. d4 Nf6 4. e3 e6 5. c4 c6 6. Nc3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 c5 10. Ng3 Nbd7 11. 0-0 Nd5 12. Ne5 N7f6 13. Qf3 Ba6 14. Ba4+ Ke7 15. Nc6+ Kd7 16. Nxd8+ Kxd8 17. Rd1 g6 18. dxc5 Bxc5 19. Bc6 Bb7 20. Bxb7 Rb8 21. Bxd5 exd5 22. Rxd5+ Nxd5 23. Qxd5+ Ke8 24. Qxc5 Kd7 25. Bd2 Rbc8 26. Qd4+ Ke8 27. Bxb4 Rd8 28. Qe5+ Kd7 29. Qe7+ Kc8 30. Rc1+ 1-0

