[Event "WchT Students 04th"]
[Site "Reykjavik"]
[Date "1957.07.14"]
[Round "4(1)"]
[White "Lahti, Jouko"]
[Black "Portisch, Lajos"]
[Result "0-1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. f4 Qa5 8. Bd2 Qa4 9. Qb1 c4 10. Kd1 Nbc6 11. Be2 O-O 12. Nf3 b5 13. Re1 Bd7 14. g3 f6 15. Bf1 f5 16. Ke2 Nc8 17. Kf2 Nb6 18. Be2 Qa5 19. Rg1 Na4 20. Qe1 Qb6 21. h3 a5 22. Be3 b4 23. Rb1 Rfb8 24. axb4 axb4 25. cxb4 c3 26. b5 Na7 27. g4 Bxb5 28. gxf5 exf5 29. Bd3 Qe6 30. Ng5 Qc8 31. Bxb5 Nxb5 32. Qe2 Qe8 33. Qf3 Nc7 34. Qg3 Rxb1 35. Rxb1 Rb8 36. Rg1 Qe7 37. Bc1 h6 38. Nf3 Rb6 39. Ba3 Qf7 40. Qh4 Ne6 41. Ke3 Nb2 42. Bd6 Nc4+ 43. Kd3 Nxd6 44. exd6 Rxd6 45. Kxc3 Qe8 0-1