Mate in 5 Exercise 56

White plays and wins in 5 moves https://lichess.org/mM4jJBrQ

1. Kf3 Qf6+ 2. Qf4 Qg6 3. Qbc7+ Qf7 4. Qcxf7+ Kh8 5. Qh4#

The analysis board does checkmate in 5 moves

1. Ke1 Qa1+ 2. Qxa1 Kg6 3. Qf8 Kh5 4. Qe5+ Kg6 5. Qfg7#

Source:

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