Good Morning Puzzlers, For those that have not read the posts by Chris, Paul and Dave for this problem, I strongly encourage you to read their problem solutions. Paul's analysis is particularly in-depth and you can learn a great deal by studying it carefully. The problem solution is revealed below. The best move is: 1. Qf8+ Principle: At first glance, the Knight fork of King and Queen is tempting, but Paul's analysis shows Black has a forced mate on that line. The keys to this problem appear to be the back rank mating position and the heavy pieces focused on the F-File. I encourage those that are interested in this tough problem, to read Paul's complete analysis, as I am unable to do it justice. The forced mate in two follows. 1. Qf8+ Rxf8 2. Rxf8#