[Event "Las Piedras op"]
[Site "Las Piedras"]
[Date "1977.??.??"]
[Round "?"]
[White "Cao, JM."]
[Black "Moreira, Claudio"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "79"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 Nc6 5. Nf3 d6 6. h3 Nf6 7. 0-0 e6 8. c4 Be7 9. Nc3 a6 10. Be3 0-0 11. Rc1 Nd7 12. Qe2 Nc5 13. Bb1 Qc7 14. Rfd1 Bd7 15. Rd2 Na7 16. Bf4 Bc6 17. b4 e5 18. Bg3 Ne6 19. Nd5 Bxd5 20. exd5 Ng5 21. Nxe5 dxe5 22. Bxe5 Bd6 23. Bxd6 Qxd6 24. h4 Rae8 25. Qg4 Ne6 26. c5 Qf4 27. Qxf4 Nxf4 28. Kf1 Re5 29. d6 Nc6 30. a3 g6 31. g3 Nh5 32. Rb2 Nf6 33. a4 Rc8 34. Ba2 Nd8 35. Re2 Rxe2 36. Kxe2 b6 37. Bc4 bxc5 38. Bxa6 Ra8 39. b5 Nd7 40. Kd3 1-0

[Event "Las Piedras op"]
[Site "Las Piedras"]
[Date "1977.??.??"]
[Round "?"]
[White "Cao, JM."]
[Black "Nunes, Jose Laranjeiras"]
[Result "0-1"]
[ECO "B27"]
[PlyCount "42"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d4 g6 3. Nf3 Bg7 4. Bc4 Nf6 5. e5 Ne4 6. d5 0-0 7. Qe2 f5 8. 0-0 b6 9. Nbd2 Nxd2 10. Bxd2 Bb7 11. Bg5 Kh8 12. Nh4 b5 13. d6 Nc6 14. dxe7 Nxe7 15. Bxb5 Re8 16. Bxe7 Rxe7 17. f4 Qb6 18. Ba4 d6 19. Qf2 dxe5 20. c3 exf4 21. Qxf4 Re4 0-1

[Event "Las Piedras op"]
[Site "Las Piedras"]
[Date "1977.??.??"]
[Round "?"]
[White "Casas, Fernando"]
[Black "Cao, JM."]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "2300"]
[PlyCount "25"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 dxc4 6. e4 0-0 7. Bxc4 c5 8. d5 a6 9. e5 b5 10. d6 Ra7 11. dxe7 Rxe7 12. Be2 Rd7 13. Qc2 1-0

[Event "Las Piedras op"]
[Site "Las Piedras"]
[Date "1977.??.??"]
[Round "?"]
[White "Colombo, Camila"]
[Black "Cao, JM."]
[Result "0-1"]
[ECO "B84"]
[PlyCount "84"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 e6 6. Be2 Nf6 7. 0-0 Be7 8. Be3 a6 9. Nxc6 bxc6 10. Kh1 0-0 11. Qd2 Qc7 12. Rad1 d5 13. exd5 cxd5 14. Bg5 Bb7 15. a3 Rfd8 16. f3 Rac8 17. Bd3 h6 18. Bf4 e5 19. Bg3 Nh5 20. Bf5 Nxg3+ 21. hxg3 Rb8 22. Qe2 Bf6 23. Na2 a5 24. c3 Re8 25. Bb1 e4 26. f4 Qc6 27. Qe3 Ba6 28. Rf2 Bd8 29. f5 Bb6 30. Rd4 Qf6 31. Kh2 Bc4 32. Nc1 Bxd4 33. cxd4 Qg5 34. Qe1 e3 35. Rf4 Rxb2 36. Nd3 Bxd3 37. Bxd3 Rd2 38. Bb5 Re7 39. Bc6 Qh5+ 40. Rh4 Qxf5 41. Rf4 Qh5+ 42. Kg1 Rd1 0-1

