Puzzles SUDOKU easy level, medium and hard
Very easy, with the following functions:
- Undo: Delete last number entered
- Validate: Checks if the numbers entered are correct
- Hint: Enter a number, useful if we stay locked
- Solve: Solve the puzzle automatically
- Reset: Returns to the beginning, erasing all entered numbers
- Pencil: You can write draft numbers
- Eraser: Clean the number of the active cell