- 1. Qxa7+ Kb4 2. Qb6+ Ka4 3. axb3#
Position
- White
- king on h3, queen on d7, rooks on d4 and d8, bishop on f5, pawns on a2, b2, c4, d3 and f3
- Black
- king on c5, queen on e2, rooks on c8 and e4, bishop on f2, knights on a7 and e8, pawns on a6, b3, c6 and e5