On Wed, Jul 11, 2007 at 01:38:11PM -0400, Chiao-Lun Cheng wrote:
I've pasted a brute force solution that uses Peter Norvig's tree-search function at
Cool. I took the liberty of posting it to the xkcd forum. Hope that's okay. http://forums.xkcd.com/viewtopic.php?t=7532
-- Larry