[Event "Debrecen"]
[Site "Debrecen"]
[Date "1956.??.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Hacsak, Istvan"]
[Result "1-0"]

1. e4 c5 2. Nf3 g6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. Qxd4 Nf6 7. Bc4 Qxd4 8. Nxd4 Bg7 9. Nb5 Na6 10. Be3 b6 11. h3 O-O 12. Nd2 Bb7 13. O-O Nc5 14. Rfe1 e6 15. a4 Nfe4 16. Nxe4 Nxe4 17. f3 Nc5 18. a5 Rfc8 19. Nd6 Rc7 20. axb6 axb6 21. Nxb7 Rxa1 22. Rxa1 Rxb7 23. Ra8+ Bf8 24. Bh6 Nd7 25. Bb5 Rb8 26. Rxb8 1-0