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  Topic: Program doesn't solve it.

Replies: 25
Views: 147571

PostForum: Daily Sudoku puzzles   Posted: Tue Aug 09, 2005 8:25 am   Subject: lookahead
I have found that the very difficult sudokus cannot be solved determinatively. you must look ahead. Ive seen a couple where it was necessary to make two such decisions to get the solution.

It depends ...
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