A couple of interesting features:

• The selection of letters is random, so, the number of words - solutions is also random. However the user can configure the range of the number of words - solutions, editing the ~/.config/spelion/spelion.config file. That means that the puzzle can have e.g. between 10 and 30 solutions, or between 50 and 100 etc.
• The user can avoid the frustration of not ever knowing the right answers when no other solutions come to mind: with the W option the user can browse the list of all possible solutions to the puzzle.

Thank you for your feedback, any other suggestion/correction/input is most welcome.