Welcome to Monty Hall

The so-called Monty Hall Problem is an ancient net.chestnut which, every time it appears on the net ignites mega-flame wars and consumes enormous bandwidth as folks wrangle (once again) over the problem and its solution.

The following is an attempt to

1. supply an introduction to the problem (in case you haven't seen it before)
   and
2. provide a reasonable and clear explanation of the answer.