The New Sudoku Players' Forum

by **giant** » Sun Dec 11, 2005 11:32 am

Some times ago I stated the following question:
Is there any information about sudoku with the maximal number of clues
such that removal of anyone of those makes the sudoku
unsolvable??
Dukuso was kind enough to make an extensive searech and found an example with 32 clues. Does someone found another, larger example?
Best regards to all community, G

by **Red Ed** » Sun Dec 11, 2005 1:02 pm

by **giant** » Sun Dec 11, 2005 1:06 pm

Red Ed: You say "35 is definitely doable."
Any arguments for your statement? For example a grid with this property?

by **Red Ed** » Sun Dec 11, 2005 1:25 pm

giant wrote:Any arguments for your statement? For example a grid with this property?

Oops, no, sorry. Got confused with the maximal atomic hitting set question (for which the biggest example I've seen has size 35).

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Max number of clues

Max number of clues

Re: Max number of clues