Mate in 3 · No. 150 · HarderRook, bishop and two knights
White to play and mate in three.
- 1. Rxg1 Nc6+ 2. Ka8 Nd8 3. Ra1#
Other defences
- 1. Rxg1 Ne6 2. Ra1#
- 1. Rxg1 Nc6+ 2. Ka8 Nb8 3. Ra1#
- 1. Rxg1 Nc6+ 2. Ka8 Ne7 3. Ra1#
- 1. Rxg1 Nc6+ 2. Ka8 Na7 3. Ra1#
- 1. Rxg1 Nc6+ 2. Ka8 Ne5 3. Ra1#
- 1. Rxg1 Nc6+ 2. Ka8 Nd4 3. Ra1#
- 1. Rxg1 Nf5 2. Ra1#
- 1. Rxg1 Nb5+ 2. Nxb5 Kxb5 3. Rg5#
- 1. Rxg1 Nb5+ 2. Nxb5 axb5 3. Ra1#
- 1. Rxg1 Nxf3 2. Ra1#
- 1. Rxg1 Nxb3 2. Bc6 Nc5 3. Nc4#
- 1. Rxg1 Nxb3 2. Bc6 Nd4 3. Nb7#
- 1. Rxg1 Nxb3 2. Bc6 Nd2 3. Nb7#
- 1. Rxg1 Nxb3 2. Bc6 Nc1 3. Nb7#
- 1. Rxg1 Nxb3 2. Bc6 Na1 3. Nb7#
- 1. Rxg1 Ne2 2. Ra1#
- 1. Rxg1 Nxc2 2. Rg5#
Position
- White
- king on a7, rook on g7, bishop on f3, knights on d6 and d7, pawns on b3, c2, d3 and f4
- Black
- king on a5, rook on g1, knight on d4, pawns on a6 and b4