Creating "optimal" puzzles

Everything about Sudoku that doesn't fit in one of the other sections

Creating "optimal" puzzles

Postby Guest » Wed May 18, 2005 2:00 pm

What is the lowest number of clues (given numbers) you can put on a sudoku board, and have a unique solution?

How many different such boards are there, not counting mirrored, shifted, and/or rotated versions?

Postby RFB » Wed May 18, 2005 7:07 pm

See the long running and lengthy thread
on Sudoku Maths

I haven't attempted to follow the arguments
Posts: 43
Joined: 03 April 2005

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