RE: wonderings
11-27-2016, 10:07 PM
(11-27-2016, 09:27 PM)a52 Wrote: »wouldn't making solvable sudoku puzzles be as hard or harder than solving them?
are sudoku puzzles np hard?
Well, in principle you just start with a full grid and remove a bunch of numbers. Of course, you need your remaining numbers to give a unique solution... but that's not necessarily as difficult as running through the puzzle to check. It would depend in part on how many numbers you take out on the grid.
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