Good Morning Puzzlers, Be sure to look at Paul's analysis for more details. The best move is: 1. Qe5+ or 1. Qf4 Principle: White notices the Black Queen and Rook align along a common diagonal. So moving to either e5 or f4 pins the rook. The e5 move also checks the King gaining time. 1. Qe5+ anything 2. Qxd6 Qxd6 3. c7 Qxc7 4. rxc7, and White should win easily with a Rook.