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Hack doesn't work?
Description
Sudoku (数独 sūdoku) is a logic-based number-placement puzzle.
The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9. We provide a partially completed grid, which for a well-posed puzzle has a single solution.
• Easy, Normal, Hard, Extreme Sudokus.
• CELL FIRST or NUMBER FIRTS playing strategies
• Unlimited time, unlimited hints.
Hack doesn't work?
If the hack does not work let us know and we will solve the problem within one day