Hyper Sudoku

Hyper Sudoku. Four extra inner-region boxes also must contain digits 1 to 9 with no repeats.

How to play

Fill the 9×9 grid so every row, every column, and every 3×3 box contains the digits 1 to 9 with no repeats — the classic Sudoku rule. Hyper Sudoku adds one twist: Four extra inner-region boxes also must contain digits 1 to 9 with no repeats.

Every Hyper Sudoku puzzle is free to play in your browser — no ads, no sign-up, and it works offline.