The solution method is not too hard. There are a lot of college math departments with explanations; google “Instant Insanity”. It involves finding suitable graph paths, pretty nifty. Rob Stegmann (Wikipedia ref 4) has a good discussion of II (and many other puzzles) on his web page. I believe his solution counts are, unfortunately, flawed. I did a big analysis of II, a variant called Devil’s Dice, and variants, last summer. My writeup is not quite suitable for prime time, but I’m happy to send it to anyone that wants it. It is computer analysis, not human useable graphic analysis. — Mike
On Jun 29, 2016, at 3:32 PM, James Propp <jamespropp@gmail.com> wrote:
Does anyone understand the solution presented at https://en.wikipedia.org/wiki/Instant_Insanity ?
(I don't.)
More broadly, does anyone know of SOME way of solving the puzzle that doesn't involve a goodly amount of trial-and-error?
Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun