We've been waiting for sudoku to come up here locally. Libraries elsewhere have been fretting about should they buy sudoku books, but despite it being the rage on the subways of Tokyo and for all we know Paris and Chicago, so far not one single person had mentioned it, nor played it anywhere we could see.
Well, we saw someone playing online, at websudoku. Tried it. Yup, addictive. Just testing the link we nearly got caught up again.
But a book? Wouldn't people check it out and work the puzzles? Is there sudoku theory?
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