[Event "Olympiad-08 Preliminaries A"]
[Site "Buenos Aires"]
[Date "1939.08.30"]
[Round "7"]
[White "Castro de Mendoza, Rene"]
[Black "Opsahl, Haakon"]
[Result "0-1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Qe7 7. O-O Bxd2 8. Nbxd2 d6 9. Qc2 O-O 10. e4 e5 11. dxe5 dxe5 12. Nh4 c5 13. Nf5 Qc7 14. Ne3 Nc6 15. Nd5 Qd6 16. f4 Nd4 17. Qd3 Nd7 18. f5 f6 19. Nb1 a6 20. Nbc3 b5 21. b3 Bc6 22. Ne3 Nf3+ 0-1