- 1. Ra8+ Kxa8 2. Qxb6 a5 3. Nc7#
Other defences
- 1. Ra8+ Kxa8 2. Qxb6 b3 3. Nc7#
- 1. Ra8+ Kb7 2. Rb8+ Ka7 3. Qxb6#
Position
- White
- king on d4, queen on d6, rook on g8, knight on e6, pawns on f2, f4, g3 and h3
- Black
- king on a7, rook on b6, pawns on a6 and b4