[Event "Sao Paulo CXSP op U18"]
[Site "Sao Paulo"]
[Date "2003.??.??"]
[Round "3"]
[White "Barbosa, Diego Fernando"]
[Black "Martinez, Jan"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "33"]
[EventDate "2003.01.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 h6 5. Nxe5 d5 6. exd5 Qe7 7. 0-0 0-0 8. Nd3 Bxc3 9. dxc3 Qd6 10. Bf4 Qd8 11. Qf3 Bg4 12. Qg3 Qd7 13. Ne5 Qf5 14. Nxg4 Nh5 15. Nxh6+ Kh7 16. Nxf5 Nxg3 17. Bxg3 1-0

[Event "Sao Paulo CXSP op U18"]
[Site "Sao Paulo"]
[Date "2003.??.??"]
[Round "2"]
[White "Martinez, Jan"]
[Black "De Lima, Diogo Nakasawa"]
[Result "0-1"]
[ECO "D13"]
[PlyCount "78"]
[EventDate "2003.01.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bg5 Ne4 7. Bf4 Qa5 8. Qb3 e6 9. a3 Be7 10. g3 0-0 11. Bg2 Nxc3 12. bxc3 Qd8 13. 0-0 Na5 14. Qc2 b6 15. e4 dxe4 16. Qxe4 Bb7 17. Qe2 Rc8 18. Bd2 Nb3 19. Ra2 Bd5 20. Ne5 Nxd4 21. cxd4 Bxa2 22. Bb4 Bxb4 23. Qxa2 Bc3 24. Nc6 Qd7 25. Qc4 Rxc6 26. Bxc6 Qxd4 27. Qa6 Qc5 28. Bf3 Qe7 29. Rc1 Bd4 30. Rd1 e5 31. Re1 Kh8 32. Qa4 Qc5 33. Rf1 b5 34. Qa5 Rb8 35. Be2 b4 36. axb4 Qxb4 37. Qc7 f5 38. Rc1 h6 39. Rc4 Qe1+ 0-1

[Event "Sao Paulo CXSP op U18"]
[Site "Sao Paulo"]
[Date "2003.??.??"]
[Round "5"]
[White "Oliveira, JS."]
[Black "Martinez, Jan"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "61"]
[EventDate "2003.01.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 cxd4 7. cxd4 Ne7 8. Bd3 Nbc6 9. c3 Qa5 10. Bd2 Qc7 11. Nh3 h6 12. Qg4 g6 13. 0-0 Bd7 14. Rab1 0-0-0 15. Rb2 Rde8 16. Rfb1 Nd8 17. Qe2 Bc6 18. c4 dxc4 19. Bxc4 Nd5 20. Bb5 Nb6 21. Ba5 g5 22. Bxb6 axb6 23. Bxc6 Nxc6 24. Rxb6 Nxd4 25. Qb2 Qxe5 26. Rc1+ Kb8 27. Rxb7+ Ka8 28. Qb6 Qa5 29. Qxa5+ Kxb7 30. Rc7+ Kb8 31. Qa7# 1-0

