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cui bono

(19,926 posts) Fri Feb 14, 2014, 01:33 AM Feb 2014

I do them on this site:
http://www.logic-puzzles.org/index.php

and am amazed at how fast some of the times are. Seems impossible to me.

There's a jigsaw puzzle site too, same thing.
http://www.jigzone.com/