[Event "URS-ch24 Semifinal"]
[Site "Leningrad"]
[Date "1956.11.??"]
[Round "?"]
[White "Zilber, Israel"]
[Black "Lisitsin, Georgy M"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 b6 3. Nc3 Bb7 4. d4 e6 5. e3 Bb4 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. Nd2 Nxc3 10. Rxc3 Nd7 11. e4 O-O 12. Be2 f5 13. exf5 exf5 1/2-1/2