How to get a hint
To get a hint just double-click the letter you want to see
disclosed. A window will pop up showing the solution.
Hints will be given by the program
whenever asked for, though beware, this is a tool of
last resort to be scarcely used, otherwise it can steal
the exhilaration you derive from solving puzzles, that
is, the feeling of accomplishment after hard reasoning to
"crack the code".