How To Play Sudoku
- Sudoku is easy to learn, but sudoku puzzles can be very hard to solve.
- Enter digits from 1 to 9 in each empty cell. Every row, every column, and every 3 x 3 box should contain one of each digit.
- True sudoku puzzles should each have a unique solution that can be deduced purely by logic with no guessing involved. Sudoku can vary tremendously in difficulty and most puzzles are graded into categories depending on the type of logic that is required to solve them.