Sudoku originally called Number Place, is a logic-based, combinatorial number-placement puzzle.
The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3?3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-
squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which has a unique solution.
There are 5 levels of difficulty. Each category contains 1,000 tasks.
Total 5000 puzzles !
The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3?3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-
squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which has a unique solution.
There are 5 levels of difficulty. Each category contains 1,000 tasks.
Total 5000 puzzles !
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