[Event "Bled 30th Anniversary"]
[Site "Bled"]
[Date "1961.09.30"]
[Round "18"]
[White "Portisch, Lajos"]
[Black "Tal, Mihail"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 c5 7. Nc3 Nc6 8. dxc5 dxc5 9. Bf4 Nh5 10. Be3 Qa5 11. Bd2 Qb4 12. Qb3 Be6 13. Nd5 Qxb3 14. axb3 Rad8 15. Be3 1/2-1/2