[Event "URS-ch39 Final"]
[Site "Leningrad"]
[Date "1971.10.03"]
[Round "13"]
[White "Krogius, Nikolai V"]
[Black "Grigorian, Karen Ashotovich"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 d5 6. Bg2 e5 7. Nf3 e4 8. Nd4 Bb4+ 9. Nc3 O-O 10. cxd5 Nxd5 11. Bd2 Bxc3 12. bxc3 Qe7 13. O-O Na6 14. Qb3 Nb6 15. a4 Nc5 1/2-1/2