17 and Sudoku Clues - Numberphile

17 is the minimum number of clues required to give a unique sudoku solution - but how did mathematicians prove this?
Featuring James Grime.
More links & stuff in full description below ↓↓↓

Dr James Grime discusses a recent paper which cracked the problem. The paper being discussed by McGuire and others is at http://arxiv.org/abs/1201.0749

James Grime's website is at http://singingbanana.com/

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Видео 17 and Sudoku Clues - Numberphile канала Numberphile