[Event "URS-ch40 Semifinal"]
[Site "Odessa"]
[Date "1972.08.??"]
[Round "?"]
[White "Averbakh, Yuri L"]
[Black "Zaitsev, Igor A"]
[Result "1-0"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 Nf6 6. d3 O-O 7. b4 Re8 8. e4 Nd4 9. Nge2 c6 10. O-O Nxe2+ 11. Qxe2 d6 12. b5 Nd7 13. bxc6 bxc6 14. Qc2 Nc5 15. Be3 Qa5 16. Ne2 Ba6 17. Nc1 Ne6 18. Nb3 Qc7 19. f4 Rab8 20. Qf2 c5 21. f5 Nd4 22. f6 Nxb3 23. axb3 Bf8 24. g4 Rb6 25. Qh4 Reb8 26. Rf3 Bc8 1-0