1.Kh7? threatening 2.Qb8 fails obviously to 1...Rb1! 1.Rhg5 threatens 2.Qxh2 and the only defence is 1...Rf2. 2.Kh7 threatens 3.Qb8, forcing 2...Rb2. With the bishop blocked in at a1 and the rook tied to b8 and h2, 3.Kg7 puts Black in zugzwang. Mate follows on the long diagonal or by KxR. A fine combination of a Roman decoy with the focal theme.