Mate in 5 Exercise 55

Black plays and wins in 2 moves https://lichess.org/ytjcOuXE/black

1... Rb4+ 2. Ka7 Qb6#

The analysis board does checkmate in 5 moves

1... Rb4+ 2. Kc8 Rc4+ 3. Qc6 Rxc6+ 4. Kb7 Rc7+ 5. Ka8 Qd8#

Source:

This publication is in my collection "500 chess puzzles. Mate in 5. Advanced & Expert Level."