This blog deals with grid-based puzzles and the various types of logic and ideas used to solve them. It also contains notices, information and results about various puzzle and sudoku championships across the globe.
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Rules of 'Windoku'
Place numbers in the grid such that every row, column and 3x3 box contain the numbers 1 to 9. Each of the four shaded 3x3 boxes must also contain the numbers 1 to 9.
1 comment:
This is a very popular version of the extra regions sudoku.
Its great fun solving these!
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