[Event "Olympiad-08 Preliminaries A"]
[Site "Buenos Aires"]
[Date "1939.08.28"]
[Round "5"]
[White "Souza Mendes, Joao"]
[Black "Opsahl, Haakon"]
[Result "1-0"]
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bf4 c6 6. e3 dxc4 7. Bxc4 Nd5 8. Nxd5 exd5 9. Bd3 Bb4+ 10. Nd2 Nf6 11. O-O O-O 12. Nf3 Bg4 13. Qb3 Qe7 14. Ne5 Bc8 15. Bg5 Bd6 16. f4 c5 17. Bxf6 gxf6 18. Qxd5 fxe5 19. fxe5 Bc7 20. Rf6 Rd8 21. Qe4 Kf8 22. Qxh7 Ke8 23. Raf1 Be6 24. Bb5+ Rd7 25. Qg8+ 1-0