What is the easiest way to make a sudoku task generator?

You need a tool to create sudoku problems, not to solve them.

Author: stanislav, 2010-10-15
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1 answers

  1. Take a deliberately correct sudoku.
  2. Shuffle columns within blocks.
  3. Shuffle the block columns.
  4. Shuffle the rows within the blocks.
  5. Shuffle the row-blocks.
  6. Renumber the numbers.

The resulting task will be the same as the original one, but it will look different from the outside.

 4
Author: stanislav, 2010-10-15 12:31:53