Request for Web page critique.

This is based on the classic 12 coin recreational math problem, which you may very well have seen before. Given 12 coins, one of which is either heavier or lighter than the others, use a balance to find the coin in 3 weighings. If you have never worked on this problem, I encourage you to see if you can solve it before looking at this particular solution.

As I explain on the Web page, I have lifted the really neat solution given by John Beasley in his book, The Mathematics of Games. I have searched the Web to see if I could find his method and did not find anything, so in this way I provide a small contribution.

Let me know if you have any difficulty following my explanation.