[math-fun] Five-field Kono...

Marc Bourzutschky reports that: "Even counting stalemates as wins, Five Field Kono is rather drawish. More than 95% of the possible positions are draws, and the longest winning sequence is only 12 moves. The a-e symmetry can be applied to both the "even" and "odd" boards separately, reducing the number of combinations by a factor of four. I wrote a simple program with two bitvectors for win/loss/draw only, without taking into account the a-e symmetry. Even with more than 1 billion positions this only took a few minutes on a 2Ghz machine." Guy