This article is from the Puzzles FAQ, by Chris Cole chris@questrel.questrel.com and Matthew Daly mwdaly@pobox.com with numerous contributions by others.
What is the most number of letters that can be fit into a three by three grid
of words, such that no letter is repeated in any row, column or diagonal?
language/english/spelling/sets.of.words/nots.and.crosses.s
Games magazine ran a contest on this. The winner had 62:
proxying| buckwash | veldt ------------------------------------ stumbled| j | zincography ------------------------------------ whack | providently | bumfs
backsword |thumpingly | fez ---------------------------------- vexingly | q | throwbacks = 61 ---------------------------------- thump | beadworks | jingly backsword | thumpingly| vex ---------------------------------- vexingly | q | throwbacks = 60 ---------------------------------- thump | bedrocks | flying subjack |downrightly| fez ---------------------------------- novelwright| q | backups = 59 ---------------------------------- pyx | subface | downright krafts | exhuming | blowzy ----------+-----------+----------- phylum | j | transfixed = 56 ----------+-----------+----------- vexing | folkways | chump klutz | cymograph | fend ----------+-----------+----------- exscind | j | kymograph = 54 ----------+-----------+----------- myograph |flunked | vibs
 
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