[Event "Olympiad-10 Preliminaries A"]
[Site "Helsinki"]
[Date "1952.08.14"]
[Round "5"]
[White "Doerner, Charles"]
[Black "Penrose, Jonathan"]
[Result "0-1"]
1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 O-O 5. e4 d6 6. g3 Bg4 7. Bg2 Nfd7 8. h3 Bxf3 9. Bxf3 Nc6 10. Be3 e5 11. d5 Nd4 12. Bg2 c5 13. O-O f5 14. f4 exf4 15. gxf4 fxe4 16. Bxe4 Nf5 17. Bxf5 Rxf5 18. Qd3 Qh4 19. Kg2 Nf6 20. Rae1 Nh5 21. Ne2 Raf8 22. Qe4 Be5 23. Qf3 Nxf4+ 24. Nxf4 Bxf4 25. Qg4 Rg5 0-1