[Event "Olympiad-10 Final B"]
[Site "Helsinki"]
[Date "1952.08.23"]
[Round "3"]
[White "Porreca, Giorgio"]
[Black "Lokvenc, Josef"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 b5 8. Bb3 Bb7 9. Nc3 Nbd7 10. Rd1 Qb6 11. d5 c4 12. dxe6 fxe6 13. Bc2 Be7 14. e4 Nc5 15. Bg5 Qc7 16. e5 Nd5 17. Ne4 Nxe4 18. Bxe4 Bc5 19. Nd4 Qf7 20. Qg4 Bxd4 21. Rxd4 O-O 22. Rf1 Rae8 23. Qh3 g6 24. Bh6 Qe7 25. Bxd5 Bxd5 26. Bxf8 Rxf8 27. Qg3 Qb4 28. Qc3 Qc5 29. a3 a5 30. b4 axb4 31. axb4 Qc7 32. Rd2 Qe7 33. Ra2 Rf5 34. f3 Qh4 35. Qe3 Qe7 36. Qc3 Qc7 37. Re1 h5 38. Qd4 Qe7 39. Qc3 h4 40. h3 Qg5 41. Kh1 Qg3 42. Re3 Kg7 43. Rd2 Bb7 44. Rd7+ Rf7 45. Rxf7+ Kxf7 46. Re1 Bd5 47. Ra1 Qf2 48. Qa3 g5 49. Qc1 Kg6 50. Qb1+ Kh6 51. Qg1 Qb2 52. Qb1 Qf2 53. Qe1 Qb2 54. Rc1 Qd4 55. Rd1 Qa7 56. f4 Qe7 57. f5 Qb7 58. Qf2 c3 59. Qe2 exf5 60. e6 Be4 61. Rc1 Qe7 62. Rxc3 Qxe6 63. Qxb5 Qa2 64. Rf3 Bxf3 65. gxf3 Qf2 66. Qc6+ Kh5 67. Qe8+ Kh6 68. Qc6+ Kg7 69. Qd7+ Kg6 70. Qd1 Qb2 71. Qd6+ Kh5 72. Qe7 Qc1+ 73. Kg2 Qd2+ 74. Kf1 Qd1+ 75. Kf2 Qd2+ 76. Qe2 Qd4+ 77. Kf1 Qxb4 78. f4+ Kg6 79. Qe6+ 1/2-1/2