Show that a 6x6 square tiled with dominoes will always have at least one fault line.

(In reply to brute force by Charlie)

actually only 390 of the 3364 ways of arranging the dominoes made it through the limit on comment size, not 1/4 of them all. But it's still the case that ll 3364 had fault lines.

Posted by Charlie on 2007-03-22 22:07:09