Giant Sudoku 16x16

16x16 giant sudoku is the largest and toughest form of classic sudoku. Digits 1 to 16, played across sixteen 4x4 boxes.

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Giant Sudoku 16x16 rules

  1. 1
    Rule 1

    The grid has 16 rows, 16 columns, and sixteen 4x4 boxes.

  2. 2
    Rule 2

    Every row and column contains the digits 1-16 exactly once.

  3. 3
    Rule 3

    Every 4x4 box also contains the digits 1-16 with no repeats.