[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.03.05"]
[Round "9"]
[White "Costa, Nelson"]
[Black "Simoes, Joao Linhas"]
[Result "0-1"]
[ECO "C21"]
[BlackElo "1820"]
[PlyCount "8"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 Qh4 3. dxe5 Bc5 4. Nf3 Qxf2# 0-1

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.03.04"]
[Round "8"]
[White "Gomes, Estevao Manuel Da"]
[Black "Costa, Nelson"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1961"]
[PlyCount "5"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 f6 2. d4 g5 3. Qh5# 1-0

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.03.03"]
[Round "7"]
[White "Costa, Nelson"]
[Black "Barbosa, Fabio Emanuel Olive"]
[Result "0-1"]
[ECO "C21"]
[BlackElo "2005"]
[PlyCount "8"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 Qh4 3. dxe5 Bc5 4. Nf3 Qxf2# 0-1

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.03.02"]
[Round "6"]
[White "Viela, Andre Filipe Folha"]
[Black "Costa, Nelson"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2103"]
[PlyCount "87"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 h6 5. 0-0 0-0 6. Nxe5 d5 7. exd5 Nxd5 8. d4 Bb6 9. c3 Be6 10. Na3 c6 11. Nc2 Nd7 12. Nxd7 Qxd7 13. Bxd5 Bxd5 14. Ne3 Qd6 15. Nxd5 cxd5 16. Re1 Qf6 17. Qe2 a6 18. g3 Rfe8 19. Qf1 Rxe1 20. Qxe1 Rf8 21. Bf4 Qe6 22. Qxe6 fxe6 23. Re1 Kf7 24. Kg2 Rc8 25. Be5 g6 26. Re3 Rf8 27. Rf3+ Ke8 28. b3 Rxf3 29. Kxf3 Kd7 30. Bg7 h5 31. Kf4 Bd8 32. h4 b5 33. Ke5 a5 34. a4 b4 35. cxb4 axb4 36. Bf8 Be7 37. Bxe7 Kxe7 38. a5 Kd7 39. a6 Kc6 40. Kxe6 Kb6 41. Kxd5 Kxa6 42. Kc6 Ka7 43. Kc7 Ka8 44. d5 1-0

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.03.01"]
[Round "5"]
[White "Costa, Nelson"]
[Black "Santos, Eduardo Antonio Sil"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "40"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 Bc5 6. a3 d6 7. h3 0-0 8. Be3 Bb6 9. Bxb6 axb6 10. 0-0 Be6 11. Ba2 Ne7 12. d4 Ng6 13. d5 Bd7 14. Qd3 Nf4 15. Qc4 Qc8 16. Ne2 N6h5 17. Nxf4 Nxf4 18. Kh2 Bxh3 19. gxh3 Qxh3+ 20. Kg1 Qg2# 0-1

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.02.28"]
[Round "4"]
[White "Machado, Manuel Antonio Ribe"]
[Black "Costa, Nelson"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "83"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 a6 5. Bxc6 dxc6 6. Nxe5 Qd4 7. Nd3 Nf6 8. Nxc5 Qxc5 9. d3 0-0 10. Bf4 Qd4 11. Bxc7 Ng4 12. Bg3 h5 13. h3 Nf6 14. Bh4 b5 15. a3 a5 16. Bxf6 Qxf6 17. Qxh5 Bd7 18. Qf3 Qxf3 19. gxf3 Rac8 20. Kd2 b4 21. axb4 axb4 22. Na4 Ra8 23. Nb6 Rxa1 24. Rxa1 Bc8 25. Nxc8 Rxc8 26. Ra6 Kh7 27. c3 b3 28. c4 Kh6 29. Ra5 c5 30. Ke3 Kh5 31. Kf4 Kh4 32. Rb5 g5+ 33. Ke3 Kxh3 34. Rxb3 Rf8 35. Rb5 f5 36. Rxc5 f4+ 37. Ke2 Rg8 38. b4 g4 39. Rh5+ Kg2 40. fxg4 Rxg4 41. Rf5 Rh4 42. b5 1-0

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.02.27"]
[Round "3"]
[White "Soares, Hugo"]
[Black "Costa, Nelson"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "40"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. h3 h6 6. Nc3 Bb4 7. Nxe5 Qd4 8. Nf3 Qf6 9. a3 Bxc3 10. dxc3 g5 11. e5 Qf5 12. Qd3 g4 13. Qxf5 Bxf5 14. hxg4 Bxg4 15. Ng5 Bf5 16. Bf4 Be4 17. Nxe4 0-0-0 18. Ng5 Rd7 19. Bd2 f6 20. exf6 Nxf6 1-0

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.02.26"]
[Round "2"]
[White "Costa, Nelson"]
[Black "Juliao, Fabio"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "151"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. a3 Nf6 6. 0-0 0-0 7. Qe1 d6 8. h3 Nh5 9. Be3 Bb6 10. Nc3 Qe7 11. Nd5 Qd7 12. Bxb6 axb6 13. Bb5 Ra5 14. a4 Ra8 15. Qe2 Qd8 16. Nd2 Nd4 17. Qxh5 Nxc2 18. Rac1 c6 19. Rxc2 cxd5 20. exd5 Bd7 21. Qe2 Bxb5 22. axb5 Ra5 23. Rc4 Rxb5 24. Ne4 Rxd5 25. Rd1 b5 26. Rb4 Qb6 27. Nc3 Rc5 28. Qe3 Qa6 29. d4 Rcc8 30. dxe5 Rfe8 31. Nxb5 Rcd8 32. Nc7 Qa5 33. Rb5 Qa4 34. Rd4 Qc2 35. Nxe8 Rxe8 36. Rxd6 Re7 37. Qe1 Qc4 38. Rb4 Qc5 39. Re4 Qc2 40. Qa5 Qc1+ 41. Re1 Qc8 42. g4 Re8 43. f4 Rf8 44. e6 Qe8 45. exf7+ Qxf7 46. f5 Qc4 47. Qe5 Qc7 48. f6 gxf6 49. Rxf6 Qxe5 50. Rxe5 Rxf6 51. Re7 Rb6 52. Re2 Kg7 53. Kf2 Kg6 54. Kf3 Kg5 55. Kg3 Rb3+ 56. Kh2 Kh4 57. Kg2 Rg3+ 58. Kf2 Kxh3 59. Re7 Rg2+ 60. Kf3 Rxb2 61. Rh7 Rb3+ 62. Kf4 Rg3 63. Rxh6+ Kg2 64. g5 Rf3+ 65. Ke5 Kg3 66. g6 Kg4 67. g7 Rf5+ 68. Ke6 Rg5 69. Kf7 Rf5+ 70. Ke7 Rg5 71. Kf7 Kf5 72. Rf6+ Ke5 73. Rg6 Rf5+ 74. Ke7 Kf4 75. g8Q Re5+ 76. Re6 1-0

[Event "Porto district-ch U18"]
[Site "Porto"]
[Date "2006.02.25"]
[Round "1"]
[White "Pereira, Antonio Pedro Caram"]
[Black "Costa, Nelson"]
[Result "1-0"]
[ECO "C75"]
[WhiteElo "2002"]
[PlyCount "83"]
[EventDate "2006.02.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 d6 5. d4 Bd7 6. 0-0 a6 7. Ba4 h6 8. Re1 Ng6 9. Be3 Nce7 10. Bc2 Bb5 11. a4 Bd7 12. Nbd2 Nc6 13. Nf1 Qf6 14. h3 0-0-0 15. d5 Nb8 16. b4 Nf4 17. Bxf4 Qxf4 18. Qd2 Qf6 19. N1h2 Qg6 20. Qd3 Bxh3 21. Nh4 Qg5 22. Qxh3+ Nd7 23. b5 Qd2 24. Qd3 Qxd3 25. Bxd3 Be7 26. Nf5 Bf6 27. bxa6 bxa6 28. Bxa6+ Kb8 29. Ng4 g6 30. Nxf6 Nxf6 31. Ne7 Ka7 32. Bc4 Nd7 33. Nc6+ Ka8 34. Rab1 Nb6 35. Ba6 Rde8 36. a5 Rb8 37. Nxb8 Kxb8 38. axb6 cxb6 39. Rxb6+ Kc7 40. Rb7+ Kc8 41. Reb1 Rd8 42. Rxf7# 1-0

