- 1. Ra1+ Na3 2. Rxa3+ Kb4 3. Ra4#
Other defences
- 1. Ra1+ Kb4 2. Ra4#
Position
- White
- king on f2, rook on c1, bishop on f1, knight on a7, pawns on b2, b3, c2 and h2
- Black
- king on a5, rook on c5, bishop on d7, knights on b5 and d8, pawns on b6, c6, d4 and d6