- 1. Qc4 Kb8 2. Qc7+ Ka8 3. Nb6#
Other defences
- 1. Qc4 Ka8 2. Qc7 e6 3. Nb6#
- 1. Qc4 Ka8 2. Qc7 e5 3. Nb6#
- 1. Qc4 Ka7 2. Qc7+ Ka8 3. Nb6#
- 1. Qc4 Ka7 2. Qc7+ Ka6 3. Qb6#
- 1. Qc4 e6 2. Qc7+ Ka8 3. Nb6#
- 1. Qc4 e6 2. Qc7+ Ka6 3. Qb6#
- 1. Qc4 e5 2. Qc7+ Ka8 3. Nb6#
- 1. Qc4 e5 2. Qc7+ Ka6 3. Qb6#
Position
- White
- king on g2, queen on a4, knight on d5, pawns on e4 and f3
- Black
- king on b7, pawn on e7