I know of a couple logic puzzles that I think would make good questions for this site. However, they are not original to me. I got them from this puzzle book. With proper source attribution, can I base challenges on them?
- Some of the puzzles in the book are evidently adapted from other sources already. For example, one is a generalized form of Sudoku.
- I've found several of the puzzle types from the book online already.
- I am not using any of the exact puzzles from the book (I don't actually have it anymore), just the puzzle rules. Together with the non-commercial nature of the site, I believe such a use falls under Fair Use guidelines.
- The book is, of course, copyrighted. Furthermore, using puzzles from a puzzle book seems to me (not that I'm a lawyer) like a larger borrowing than using names of Pokémons, e.g. On the other hand, apparently game mechanics are not copyrightable. Not sure how much that applies to puzzle mechanics.
What say ye?