[Event "Naval CC 46th"]
[Site "Brazil"]
[Date "1997.??.??"]
[Round "2"]
[White "Borensztajn, David"]
[Black "Gerk, Antonio Corderio"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2000"]
[BlackElo "2000"]
[PlyCount "73"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Bd3 h6 5. Bxf6 Bxf6 6. e5 Be7 7. f4 Nc6 8. c3 d5 9. Qf3 a6 10. Ne2 b5 11. a3 Na5 12. Nd2 c5 13. b4 c4 14. Bc2 Nc6 15. 0-0 Bb7 16. f5 Kd7 17. fxe6+ fxe6 18. Nf4 Rf8 19. Qg4 Rxf4 20. Rxf4 Qg8 21. Raf1 Rf8 22. Rxf8 Bxf8 23. Bg6 Nd8 24. Qf4 Be7 25. Nf3 Bc8 26. a4 Kc6 27. axb5+ axb5 28. Nh4 Bd7 29. Nf3 Be8 30. Bxe8+ Qxe8 31. Qc1 Nb7 32. Qa1 Kb6 33. Rf2 Qc8 34. Ra2 Nd8 35. Ra8 Qb7 36. Qa5+ Kc6 37. Ra6+ 1-0

[Event "Naval CC 46th"]
[Site "Brazil"]
[Date "1997.??.??"]
[Round "1"]
[White "Gerk, Antonio Corderio"]
[Black "Fernandes, Jose Costa Jr"]
[Result "0-1"]
[ECO "B49"]
[WhiteElo "2000"]
[BlackElo "2310"]
[PlyCount "62"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 b5 8. a3 Bb7 9. Qd2 Nf6 10. f3 Be7 11. 0-0 0-0 12. Rad1 Rfd8 13. Nxc6 Bxc6 14. Bf2 d5 15. exd5 Nxd5 16. Nxd5 Bxd5 17. Bd3 Qe5 18. b4 Qh5 19. Bg3 Rac8 20. Qe2 Rc3 21. Be5 Rxa3 22. g4 Qh3 23. Ra1 Rxa1 24. Bxa1 Bxb4 25. c4 Bxc4 26. Bxc4 Rd2 27. Rd1 Bc5+ 28. Kh1 Rxe2 29. Rd8+ Bf8 30. Bxe2 Qh4 31. Rd1 Qf2 0-1

[Event "Naval CC 46th"]
[Site "Brazil"]
[Date "1997.??.??"]
[Round "3"]
[White "Gerk, Antonio Corderio"]
[Black "Machado, Wallace Fernandes"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "2000"]
[BlackElo "2000"]
[PlyCount "91"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 Ngf6 9. 0-0 e6 10. b3 Be7 11. Bb2 Qc7 12. c4 0-0 13. Rfe1 Rad8 14. Qe2 Rfe8 15. Rad1 Nf8 16. Ne5 Qa5 17. Ba1 Bb4 18. Rf1 Bc3 19. Rd3 Bxa1 20. Rxa1 Qb6 21. Rad1 N6d7 22. h4 f6 23. Nxd7 Nxd7 24. Qg4 Qa5 25. Nh5 g6 26. Nf4 Kf7 27. h5 g5 28. h6 Qc7 29. Qh5+ Kg8 30. Nh3 Nf8 31. Rf3 Qe7 32. Re3 Qf7 33. Qg4 Qg6 34. f4 Qxh6 35. fxg5 fxg5 36. Nxg5 Qg6 37. Qh4 Qc2 38. Rf1 Rd7 39. Ne4 Rg7 40. Nf6+ Kh8 41. Rg3 Ree7 42. Nh5 Rgf7 43. Nf6 Rg7 44. Nxh7 Qxh7 45. Rxf8+ Rg8 46. Rfxg8# 1-0

