Recently I posted about winning strategies for Rock-Paper Scissors. Here philosopher Daniel Dennett relates your ability to win at Rock Paper Scissors to the concept of Free Will.
In the discussions I've had, I notice that an individuals acceptance of "free will" depends almost entirely the definition of free will. So for example Dennett's book and Sam Harris' book essentially come to the opposite conclusion about free will. However more careful scrutiny shows that they are not talking about the same "free will".
But this analogy to playing RPS with god is an interesting method of probing at those definitions.