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Enough is enough (Posted on 2010-01-29) Difficulty: 3 of 5
In a 9*9 SUDOKU game what is the minimal number of digits guaranteeing a unique solution?

No Solution Yet Submitted by Ady TZIDON    
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Proof Comment 4 of 4 |
In 2012, the minimum was proved to be 17, by doing an exhaustive search of all 16 digit sudokus.


Edited on May 23, 2017, 8:46 pm
  Posted by Steve Herman on 2017-05-23 20:45:29

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