- Liferay Portal 6.1 CE GA2+
- Liferay Portal 6.1 EE GA2+
Sudoku is a logic-based,combinatorial 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 sub-grids that compose the grid contains all of the digits from 1 to 9.
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