Good Afternoon Puzzlers, Paul posted his analysis and solution for this problem last Sunday, but I am just getting around to sending out the "official" answer. Take a look at Paul's analysis and especially the Queen move on Black move 3 in an attempt to lure White off the mate. As usual my solution follows and even though I did not originally see the Queen move, I shamelessly included it here. The best move is: 1. Qxg7+ Principle: This problem is about recognizing the Bishop-Rook mating pattern in the corner. In fact many tactics revolve around recognizing tactticle patterns. But here, the Queen must first remove a Pawn and force the King to g7. 1. Qxg7+ Kxg7, forced. 2. Bf6+ and the Black King has four flight squares (f8, g8, h7 or h6) none of which will save him. 2... Kh6 is instant death with 3. Rh4# 2... Kh7 is only a bit slower with 3. Rh4+ followed by 4. Rh8# 2... Kg8 or Kf8 are also followed by 3. Rh4, remember it is still the same pattern. Now the Black King may cry out like Henry II "Will no-one rid me of this troublesome priest?" So the Black Queen may try with: 3... Qd8 in an attempt to distract the Rook from the mate 4. Rh8#