- 1. Bxc7+ Ka6 2. Ra8+ Kb5 3. bxa4#
Other defences
- 1. Bxc7+ Kb5 2. bxa4+ Ka6 3. Ra8#
Position
- White
- king on e1, rooks on f4 and f8, bishop on d8, knight on c1, pawns on a2 and b3
- Black
- king on a5, rook on c5, bishop on c7, knights on a3 and b7, pawns on a4, c3, c6, d3 and d7