[Event "HUN-ch12"]
[Site "Budapest"]
[Date "1957.03.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Gasztonyi, Endre"]
[Result "1-0"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. b3 Bg7 5. Bb2 O-O 6. Nf3 d6 7. d4 Ne4 8. O-O c5 9. Qc1 cxd4 10. Nxd4 Qb6 11. Nb5 a6 12. N5c3 Nc6 13. Nxe4 fxe4 14. Bxg7 Kxg7 15. Bxe4 Bh3 16. Bg2 Nd4 17. Nc3 Bg4 18. Qe3 e5 19. Rad1 Rae8 20. Qe4 Bc8 21. e3 Ne6 22. Qd5 Rd8 23. Ne4 Nc7 24. Qd2 d5 25. cxd5 Nxd5 26. Qb2 Qc7 27. Ng5 Qc3 28. Qa3 Qb4 29. Qxb4 Nxb4 30. Bxb7 Bxb7 31. Ne6+ Kf6 32. Rxd8 Rxd8 33. Nxd8 Bf3 34. Rc1 Nxa2 35. Rc7 Bd5 36. Nb7 Bxb3 37. Nc5 Bg8 38. Nxa6 e4 39. Nc5 Bd5 40. Rxh7 Nc3 41. h4 1-0