[Event "Olympiad-10 Preliminaries B"]
[Site "Helsinki"]
[Date "1952.08.14"]
[Round "4"]
[White "Johansson, Inge Valfrid"]
[Black "Cala, Ugo"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Ne2 d5 7. O-O dxc4 8. Bxc4 Nc6 9. a3 cxd4 10. exd4 Be7 11. h3 b6 12. Qd3 Bb7 13. Rd1 Qd7 14. Be3 Rfd8 15. Rac1 Na5 16. Ba2 Rac8 17. b4 Nc6 18. Bb1 g6 19. Ng3 Nd5 20. Nxd5 Qxd5 21. Qf1 Nb8 22. Be4 Qd7 23. Rxc8 Rxc8 24. Rc1 Rxc1 25. Qxc1 Bxe4 26. Nxe4 Qc6 27. f3 Qxc1+ 28. Bxc1 Nc6 29. Bb2 f5 30. Nd2 Kf7 31. Kf2 Bf6 32. Ke3 Ne7 33. Nc4 Nd5+ 34. Kf2 Ke7 35. b5 Kd7 36. Ke2 Nf4+ 37. Kf2 Nd5 38. Ne3 Bh4+ 39. Ke2 Nf4+ 40. Kf1 Bf6 41. Bc3 Be7 42. Nc4 Bd6 43. Bd2 Nd5 44. Ke2 Bf4 45. Be1 Bd6 46. Bd2 Bf4 1/2-1/2