Puzzle rules
Sudoku X
Complete the 9×9 Sudoku so every row, column, 3×3 box, and both main diagonals contain the numbers 1–9 exactly once.
How to solve
Complete rules
Goal: Complete the Sudoku X grid. Rules: - Each row, column, and 3×3 box must contain the numbers 1–9 exactly once. - Each of the two main corner-to-corner diagonals must also contain the numbers 1–9 exactly once. - Given numbers are fixed.