Similar to the most recent question about "number of letters in top color spelling equals value of all pieces": I had a guy last night who's rule was "two pieces make the letter T." We eventually had to give, but that's probably more due to beer than difficulty or references to externals being dismissed. Bad rule or good? I was inclined to say it was outside reference (and did at the time); but I can imagine someone guessing "two pieces same-size touching, one of which exactly bisects the edge of the other one" and that would be so functionally equivalent to describing how to draw the letter T that the guy would have had to give the win. Thoughts? David Artman