[Event "Olympiad-08 Preliminaries A"]
[Site "Buenos Aires"]
[Date "1939.08.24"]
[Round "1"]
[White "Opocensky, Karel"]
[Black "Diaz Perez, Juan Silvano"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Qc2 Nbd7 6. Bg2 Bd6 7. Nbd2 O-O 8. O-O Re8 9. b3 e5 10. dxe5 Nxe5 11. Bb2 Nxf3+ 12. Nxf3 dxc4 13. bxc4 Qe7 14. Rfd1 Bc7 15. Qc3 Bg4 16. h3 Bxf3 17. Qxf3 Qxe2 18. Bxf6 Qxf3 19. Bxf3 gxf6 20. Rd7 Be5 21. Rb1 b6 22. Bxc6 Red8 23. Rbd1 Rxd7 24. Rxd7 Rc8 25. Bd5 Rc7 26. Bxf7+ Kg7 27. Rxc7 Bxc7 28. Bd5 Bd6 29. Kg2 a5 30. f4 Bc5 31. g4 Bd4 32. Kf3 Bc5 33. Ke4 Bf2 34. Kf3 Bc5 35. h4 h6 1/2-1/2