[Event "Olympiad-10 Preliminaries B"]
[Site "Helsinki"]
[Date "1952.08.10"]
[Round "1"]
[White "Pirc, Vasja"]
[Black "Rojahn, Ernst"]
[Result "1/2-1/2"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 c6 7. b3 Nbd7 8. cxd5 Nxd5 9. e4 N5b6 10. a4 a5 11. Nc3 e5 12. Bg5 f6 13. Be3 exd4 14. Nxd4 Ne5 15. Nxc6 bxc6 16. Qxd8 Rxd8 17. Bxb6 Rd3 18. Rac1 Be6 19. f4 Nd7 20. Bf2 Bxb3 21. Rfe1 Bf8 22. Bf1 Rd2 23. Be3 Rb2 24. Rb1 Rxb1 25. Rxb1 Be6 26. Ne2 Nc5 27. Nd4 Bf7 28. Nxc6 Nxa4 29. Rc1 Re8 30. e5 Bb4 31. Nxb4 axb4 32. Bb5 Ra8 33. Ra1 Nb6 34. Rxa8+ Nxa8 35. exf6 Nc7 36. Bd3 Be6 37. Bd4 Kf7 1/2-1/2