[Event "Zagreb Peace"]
[Site "Zagreb"]
[Date "1965.05.06"]
[Round "18"]
[White "Portisch, Lajos"]
[Black "Filip, Miroslav"]
[Result "1/2-1/2"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. cxd5 exd5 8. Bb5 Be7 9. Nge2 O-O 10. O-O a6 11. Bxc6 bxc6 12. Rc1 Nh5 13. Bxe7 Qxe7 14. Qd2 Bg4 15. f3 Bd7 16. Na4 Rae8 17. Rfe1 Qd8 18. Nc5 Bc8 19. Nd3 Re6 20. Ne5 Bb7 21. g4 Nf6 22. Nf4 Rd6 23. Qb4 Ba8 24. Re2 Ne8 25. Rce1 Rf6 26. Nfd3 a5 27. Qc3 Bb7 28. Nc5 Bc8 29. Kh1 Rd6 30. Nb3 a4 31. Na5 Re6 32. Naxc6 Qh4 33. Qc5 Nd6 34. Nd3 Qh3 35. Rf2 Ne4 36. fxe4 Qxd3 37. e5 Rxc6 38. Qxc6 Qxd4 39. Rff1 Be6 40. Qc3 Qxg4 41. Rg1 Qf5 42. Rg3 1/2-1/2