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 largest known variogram (word square where repeated letters count
as one square)?
language/english/spelling/sets.of.words/variogram.s
o c c u p a t e s c h i n a m i n e c i g a r e t t e u n a ll o t t e d p a r o c h i n e a m e t h y s t a t i t t i s h e r e n t e n t e s t s e e d e a r t h
 
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