Sudoku Skills

Entering

Use the number pad or keyboard to enter values. Turn Notes on, or hold Shift while pressing a number, to add candidate marks. Press Enter to commit the current value while keeping focus on the same cell. Walkthrough mode locks the board for review.

Puzzle loader

Puzzle scan and import

Choose a Sudoku image. The app will detect the puzzle, recognize the givens, validate the result, and enable import when the scan is ready.