
White to move and mate in 2.
Answer:
Key: 1. Qb8
If 1. …Rxb2; 2. Qxb2 mate
If 1. …R moves elsewhere on file; 2. Nc4 mate
If 1. …R moves on rank; 2. Ra2 mate (Yes, 1. …Rc4 leads to 2 different mates: Ra2 and Nxc4
Note: 1. Qd6 stalemate

White to move and mate in 2.
Answer:
Key: 1. Qb8
If 1. …Rxb2; 2. Qxb2 mate
If 1. …R moves elsewhere on file; 2. Nc4 mate
If 1. …R moves on rank; 2. Ra2 mate (Yes, 1. …Rc4 leads to 2 different mates: Ra2 and Nxc4
Note: 1. Qd6 stalemate