Comment by chrisshroba
4 days ago
I love riddles like this.
Has anyone found any good collections of these? Whenever I try to search for riddles online, I end up with mostly results containing wordplay riddles like "what has a mouth but doesn't eat, ..."
Teh Guardian used to (?) publish puzzles by Chris Maslanka which were like this, and, as i recall, pretty good. There are a couple of books collecting them:
https://www.worldofbooks.com/en-gb/products/the-pyrgic-puzzl...
https://www.worldofbooks.com/en-gb/products/pyrgic-puzzles-b...
This should be more of the same:
https://uk.bookshop.org/p/books/university-of-the-mind-fiend...
The GCHQ Christmas Challenges might be worth a look too.
I maintain my personal collection of pure logic riddles here: https://www.oliverhill.xyz/riddles
Before publishing I found this while trying to see if there was a already a riddle like it out there (closest I could find was the 1000 barrels of wine riddle mentioned at the beginning): https://puzzles.nigelcoldwell.co.uk/
You can also think of this riddle as a very symmetric version of Wordle, where instead of trying to solve for a permutation of letters you're solving for a permutation of years.
Raymond Smullyan had many logic puzzles, including the idol that always lies and the idol that always tells the truth. https://duckduckgo.com/?q=raymond+smullyan+puzzles&ia=web
https://www.explainxkcd.com/wiki/index.php/246:_Labyrinth_Pu...
There is a funny story about the idols. https://astralcodexten.substack.com/p/idol-words