Mate in 3 · No. 106 · HarderQueen and knight
White to play and mate in three.
- 1. Nb5 Kb8 2. Qxc7+ Ka8 3. Qc8#
Other defences
- 1. Nb5 Kc8 2. Qxc7#
- 1. Nb5 Ka8 2. Qxc7 a6 3. Qa7#
- 1. Nb5 Ka8 2. Qxc7 e5 3. Qc8#
- 1. Nb5 Ka8 2. Qxc7 b3 3. Qc8#
- 1. Nb5 Ka8 2. Qxc7 a3 3. Qc8#
- 1. Nb5 Ka8 2. Qxc7 a5 3. Qa7#
- 1. Nb5 Ka6 2. Qxc7 e5 3. Qxa7#
- 1. Nb5 Ka6 2. Qxc7 b3 3. Qxa7#
- 1. Nb5 Ka6 2. Qxc7 a3 3. Qxa7#
- 1. Nb5 a6 2. Qxc7+ Ka8 3. Qa7#
- 1. Nb5 e5 2. Qxc7+ Ka8 3. Qc8#
- 1. Nb5 e5 2. Qxc7+ Ka6 3. Qxa7#
- 1. Nb5 b3 2. Qxc7+ Ka8 3. Qc8#
- 1. Nb5 b3 2. Qxc7+ Ka6 3. Qxa7#
- 1. Nb5 a3 2. Qxc7+ Ka8 3. Qc8#
- 1. Nb5 a3 2. Qxc7+ Ka6 3. Qxa7#
- 1. Nb5 a5 2. Qxc7+ Ka8 3. Qa7#
- 1. Nb5 a5 2. Qxc7+ Ka6 3. Qa7#
Position
- White
- king on c5, queen on h7, knight on a3, pawns on d4, e3, f3, h3 and h4
- Black
- king on b7, knight on c7, pawns on a4, a7, b4 and e6