[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.15"]
[Round "4"]
[White "Liberzon, Vladimir Mikhailovi"]
[Black "Sosonko, Gennadi"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2505"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2 b6 9. b3 Ba6 10. a4 Nbd7 1/2-1/2