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What is the least number of givens for a valid sudoku puzzle?

Question asked by: mrquestion

Asked on: 11 Jan 2010

The lowest number that has been found to the best of my knowledge is 17.

I am not certain if this has been proved beyond doubt - I have just seen links to some posts on other sites that suggest that this is indeed the theoretical minimum, but certainly if there is a sudoku with less givens than this it has not been found yet.

By: knowitall
Replied at: 11 Jan 2010
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Question Keywords

valid  sudoku  puzzle  givens  least  

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