** A mathematical problem which will almost always
require
the use of a simple computer program to solve. **

** You will
need at least a rudimentary knowledge of maths to solve it, and
occasionally more. You can use this skill to understand the
problem, derive a formula to resolve it if necessary, and define the
range
within which the answer should fall. **

** At this
stage, you will usually be unable to derive an
exact answer, and will have to resort to a simple computer program
to go further. You'll have to develop an algorithm, write the
code, debug it, and get it to run. **

** Finally, you need to
test your answer for accuracy
and completeness. Many Puzzlets have several answers,
and part of the challenge is to be sure you've found them all.
That, then, is the complete Puzzlet experience! **