Sudoku (数独) is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid so that each column, each row, and each of the nine 3×3 boxes contains the digits from 1 to 9 only one time each.
Before play, select dificulty: very easy, easy, med, hard or very hard.
Press ? for help.
23 hours ago
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Great! (obanshee)
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