Most of the questions on the main site are actual puzzles where the answers are guesses to those riddles, puzzles, rebus' etc.
I've become interested in certain puzzles, such as battleships, specifically in the uniqueness of solutions. From the linked site:
Each puzzle has exactly one solution, which can be found using logic alone and no guesses are ever required. If you think you've found another solution, then please double check the rules.
I would like to know if questions such as the below are on topic:
- How do we know that the solution is unique?
- Under what conditions are the solutions unique?