Sudoku & Sudoku-X
SudokuIQPlay Sudoku & Sudoku-X Online
Settle into classic Sudoku or add an extra challenge with the diagonal rules of Sudoku-X.
Play SudokuIQ on itch.ioFree to play in your browser.
About SudokuIQ
Choose classic Sudoku or Sudoku-X for an extra diagonal constraint. Both reward careful deduction. In classic Sudoku, each row, column, and 3-by-3 box contains the digits 1 through 9 without repetition. Sudoku-X adds the same requirement to both long diagonals.
How to play
- Choose Sudoku or Sudoku-X and a difficulty level.
- Fill empty cells with numbers while following the puzzle’s rules.
- Use the import/export feature to save your progress for another session, or reveal the completed puzzle.