On Tue, Mar 10, 2009 at 12:37:08PM -0400, karlvonl@xxxxxxx wrote: >Ambiguity is not unique to the null koan. Consider "AKHTBN if all of >its blue pyramids are upright". A koan without any blue pieces is just >as ambiguous. But the rules of the game should prevent this from being a real problem anyway. Consider: the Master has set the rule above (considering it with the boolean interpretation) and the table has: red blue upright blue flat Y Y N A player (using the non-boolean formulation) proposes the rule "AKHTBN if it has no blue pyramids, or if all its blue pyramids are upright". The Master is not going to be able to produce a koan that distinguishes his rule from the guessed rule, so it's a successful guess. Roger