Mate in 3 · No. 266 · HarderQueen, two rooks and knight
White to play and mate in three.
- 1. Rb1 Rd7+ 2. Qxd7 Kh4 3. Rh1#
Other defences
- 1. Rb1 Rd8 2. Rh1#
- 1. Rb1 Rd7+ 2. Qxd7 h4 3. Qxg4#
- 1. Rb1 Rd6 2. Rh1#
- 1. Rb1 Rd5 2. Rh1#
- 1. Rb1 Rc4 2. Rh1#
- 1. Rb1 Rb4 2. Rh1#
- 1. Rb1 Rxa4 2. Rh1#
- 1. Rb1 Rd3 2. Rh1#
- 1. Rb1 Rd2 2. Rh1#
- 1. Rb1 Rd1 2. Rxd1 Kh4 3. Rh1#
- 1. Rb1 Rd1 2. Rxd1 h4 3. Qxg4#
- 1. Rb1 Kh4 2. Rh1#
- 1. Rb1 h4 2. Qxg4#
Position
- White
- king on h7, queen on c8, rooks on b2 and g2, knight on e3, pawns on a4 and c2
- Black
- king on h3, rook on d4, pawns on e4, g4, g5 and h5