[Event "URS, 1972"] [White "Vitaly Levchenkov"] [Black "Igor Sakovich"] [FEN "r5k1/2p2ppp/p1P2n2/8/1pP2bbQ/1B3PP1/PP1Pq2P/RNB3K1 b - - 0 1"] %Hidden=1 1... Qe1+ 2. Kg2 Bxf3+ 3. Kxf3 Qf1#