White plays and wins in 2 moves https://lichess.org/rMckXsRi
- Rb3+ Qg3 2. Qxg3#
The analysis board does checkmate in 5 moves
- Rb3+ Kg2 2. Qf3+ Kh2 3. Rb2+ Qf2 4. Rxf2+ Kg1 5. Qg2#
Source:
This publication is in my collection "500 chess puzzles. Mate in 5. Advanced & Expert Level."