Provides puzzles with varying difficulty levels. Users can select grids, input numbers, and check for errors. Features include hint assistance, puzzle saving, and adjustable difficulty settings.
Allows users to fill 9×9 grids with numbers 1-9. Tap cells to input numbers. Take notes and use hints. Access unique levels. Track progress and train brain skills.
Play puzzles in a horizontal layout with large numbers for easier reading. Solve grids with varying difficulty levels. Track progress and revisit previous puzzles. Share completed puzzles with friends.