[Event "URS-ch23 Semifinal"]
[Site "Leningrad"]
[Date "1955.11.12"]
[Round "2"]
[White "Estrin, Yakov Borisovich"]
[Black "Lisitsin, Georgy M"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3 Be6 9. f4 O-O 10. O-O Qc8 11. Qe1 Rd8 12. Rd1 Bg4 13. h3 Bxe2 14. Qxe2 Rb8 15. a4 b6 1/2-1/2