riddle site

June 23, 2005 12:46 PM

What are your favorite puzzle and riddle sites? Preferably challenging. For example, I know of greylabyrinth.com ,rec-puzzles.org, cut-the-knot.org, cs.cmu.edu/puzzle, ocf.berkeley.edu/~wwu/riddles. Also do you know of any good free cryptic crossword sites?
posted by blueyellow to Education (10 answers total)

How about this one: http://www.research.ibm.com/ponder/
posted by bricoleur at 1:10 PM on June 23, 2005

mathpuzzle.com
posted by vacapinta at 1:24 PM on June 23, 2005

If you like these, they are easy versions of the mostly-visual puzzles in The Stone. I found them wonderfully challenging (er, I always needed help. I'm not a puzzlemeister).
posted by frykitty at 1:26 PM on June 23, 2005

You may want to check out the MIT Mystery Hunt archives, which have puzzles from at least the last few years posted.
posted by ubersturm at 1:30 PM on June 23, 2005

Nick's Mathematical Puzzles is a good 'un.
posted by Johnny Assay at 1:53 PM on June 23, 2005

Crossword Puzzles, Puzzle Playground, perplexus.
posted by Gyan at 2:07 PM on June 23, 2005

Off-topic, but related ... I just finished reading this Wired article moments ago ...

Gunning for the Puzzle Title
"Low expectations and minimal preparation don't cut the mustard when you're trying to solve the brain teasers at the annual U.S. Puzzle Championship."
posted by ericb at 2:30 PM on June 23, 2005

The Sydney Morning Herald website publishes a cryptic crossword every day, if that helps.
posted by arha at 5:13 PM on June 23, 2005

www.puzzledonkey.com
posted by solotoro at 5:34 PM on June 23, 2005

http://www.heritagenews.com/puzzle/
btw, Sydney Morning Herald requires free registration.
posted by Cranberry at 10:14 PM on June 23, 2005