[Event "USSR Championship"] [Site "Moscow URS"] [Date "1973.10.23"] [EventDate "1973.10.02"] [Round "15"] [Result "0-1"] [White "Mikhail Tal"] [Black "Tigran Vartanovich Petrosian"] [ECO "B17"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "54"] 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3 a5 9. a4 h6 10. N5f3 c5 11. Bf4 Bd6 12. Be5 O-O 13. O-O-O c4 14. Bxc4 Nxa4 15. Nh3 Nb6 16. g4 a4 17. g5 hxg5 18. Nhxg5 a3 19. b3 Bb4 20. Rdg1 a2 21. Kb2 Nxc4+ 22. Qxc4 Nd5 23. Ne4 f6 24. Bf4 Ba3+ 25. Ka1 Nxf4 26. h4 Rf7 27. Rg4 Qa5 0-1