Mate in three vs Black to move

Start Analysis Engine to see Solution #4440 Chess: 5334 Problems, Combination | Cleanchess.com | 1 Jul 2017

1014419

[Event "Start Analysis Engine to see Solution #4440 Chess: 5334 Problems, Combination"] [Site "Cleanchess.com"] [Date "2017.07.01"] [Round "0"] [White "Mate in three"] [Black "Black to move"] [FEN "5r1k/3R1rpp/5q2/8/P6n/1Q6/6BP/3R3K b - - 0 1"] 1... Qf1+ 2. Rxf1 Rxf1+ 3. Bxf1 Rxf1# *

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