Puzzle rules
Classic Sudoku
Complete the 9×9 Sudoku so the numbers 1–9 appear exactly once in every row, every column, and every 3×3 box.
How to solve
Complete rules
Goal: Complete the 9×9 Sudoku grid. Rules: - Each row must contain the numbers 1–9 exactly once. - Each column must contain the numbers 1–9 exactly once. - Each 3×3 box must contain the numbers 1–9 exactly once. - Given numbers are fixed.