@susankayequinn I love it and use it all the time in so many contexts. It's important to remember that, if you're clever and imaginative, that your adversary...even if they're better than you...will never live up to the one in your imagination. The imagined adversary never pays a cost for making a move; the real one does.
To hear it from a master engineer:
"Let's work the problem, people. Let's not make things worse by guessing." --Gene Kranz