Mate in 3 · No. 15 · HarderQueen and bishop
White to play and mate in three.
- 1. Kd5 Bd8 2. Kc6 Be7 3. Qb7#
Other defences
- 1. Kd5 Bd8 2. Kc6 Bc7 3. Qb7#
- 1. Kd5 Bd8 2. Kc6 Bf6 3. Qb7#
- 1. Kd5 Bd8 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Bd8 2. Kc6 Bg5 3. Bd4#
- 1. Kd5 Bd8 2. Kc6 Ba5 3. Qb7#
- 1. Kd5 Bd8 2. Kc6 Bh4 3. Bd4#
- 1. Kd5 Bc7 2. Kc6 Bd8 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Bb8 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Bd6 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Be5 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Ba5 3. Qb7#
- 1. Kd5 Bc7 2. Kc6 Bf4 3. Bd4#
- 1. Kd5 Bc7 2. Kc6 Bg3 3. Bd4#
- 1. Kd5 Bc7 2. Kc6 Bh2 3. Bd4#
- 1. Kd5 Bc5 2. Kc6 Bf8 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Be7 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Bd6 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Bd4 3. Bxd4#
- 1. Kd5 Bc5 2. Kc6 Bb4 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Be3 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Ba3 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Bf2 3. Qb7#
- 1. Kd5 Bc5 2. Kc6 Bg1 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bd8 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bc7 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bb4 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bc3 3. Qb7#
- 1. Kd5 Ba5 2. Kc6 Bd2 3. Bd4#
- 1. Kd5 Ba5 2. Kc6 Be1 3. Bd4#
- 1. Kd5 Bd4 2. Bxd4#
- 1. Kd5 Be3 2. Kc6 Bh6 3. Bd4#
- 1. Kd5 Be3 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Be3 2. Kc6 Bg5 3. Bd4#
- 1. Kd5 Be3 2. Kc6 Bc5 3. Qb7#
- 1. Kd5 Be3 2. Kc6 Bf4 3. Bd4#
- 1. Kd5 Be3 2. Kc6 Bd4 3. Bxd4#
- 1. Kd5 Be3 2. Kc6 Bf2 3. Qb7#
- 1. Kd5 Be3 2. Kc6 Bd2 3. Bd4#
- 1. Kd5 Be3 2. Kc6 Bg1 3. Qb7#
- 1. Kd5 Be3 2. Kc6 Bc1 3. Bd4#
- 1. Kd5 Bf2 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Bf2 2. Kc6 Bc5 3. Qb7#
- 1. Kd5 Bf2 2. Kc6 Bh4 3. Bd4#
- 1. Kd5 Bf2 2. Kc6 Bd4 3. Bxd4#
- 1. Kd5 Bf2 2. Kc6 Bg3 3. Bd4#
- 1. Kd5 Bf2 2. Kc6 Be3 3. Qb7#
- 1. Kd5 Bf2 2. Kc6 Bg1 3. Qb7#
- 1. Kd5 Bf2 2. Kc6 Be1 3. Bd4#
- 1. Kd5 Bg1 2. Kc6 Bb6 3. Qb7#
- 1. Kd5 Bg1 2. Kc6 Bc5 3. Qb7#
- 1. Kd5 Bg1 2. Kc6 Bd4 3. Bxd4#
- 1. Kd5 Bg1 2. Kc6 Be3 3. Qb7#
- 1. Kd5 Bg1 2. Kc6 Bh2 3. Bd4#
- 1. Kd5 Bg1 2. Kc6 Bf2 3. Qb7#
Position
- White
- king on e4, queen on c8, bishop on a1
- Black
- king on a7, bishop on b6