[Event "Brazilian Championship"]
[Site "Nova Friburgo BRA"]
[Date "1980.09.23"]
[EventDate "1980.09.20"]
[Round "4"]
[Result "1/2-1/2"]
[White "Alberto Mascarenhas"]
[Black "Cunha Pereira, Silvio"]
[ECO "A69"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "52"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2
exd5 9. cxd5 Re8 10. Nd2 c4 11. e5 dxe5 12. Nxc4 exf4 13. O-O g5 14. g3 Ne4
15. Bf3 Nxc3 16. bxc3 Qc7 17. Qd3 Bh3 18. Ba3 b5 19. d6 bxc4 20. dxc7 cxd3
21. Bxa8 Bxf1 22. Kxf1 Na6 23. Bc6 Rc8 24. Bb7 Rxc7 25. Bxa6 Rxc3 26. Bb4
1/2-1/2