My friend Debbie sent this along(thanks, Debbie!). I am not a mathematician so I cannot tell you how this works. If there is someone out there who can explain it to me, let me know. Will write more later. Am still trying to the stump the little rodent.
PS: I noticed that the symbols don't stay the same, changing from turn to turn.
I'm hopeful of an explanation from one of you brainiacs.