> If I want to talk about a hypothetical evil rule, I use something > like "if ... the number of non-large pyramids is square and the > number of non-blue pips is fibonacci." For our little gang, we have prohibited compound rules. No "ands", "ors", or packed lists. The rule must be One. > As for me, the second rule I created led to having to recycle koans > and just about ran out of guessing stones (because by the end, > everyone was getting the Mondos correct): "if ... the numbers of each > size and color are even." That seems achievable. Maybe a little hard, but pretty and guessable. > And of course, word-count limits aren't always a guarantee of > simplicity: "if ... it's a monocolored tree". And, call me crazy, but that sounds trivially easy. I'll try it on my group.