Sudoku Free HD is a free-to-play game with beautiful graphics that offers a unique way to challenge your mind and keep you focused. Try Sudoku by using a dual keypad. Use the one for entering numbers and the one for entering notes.

On the puzzle board, you will see a number and a letter for each blank square. You are free to enter values using the number keypad or using the one for entering notes. After you enter all the values on the board, select the option to check for errors.

On the puzzle board, you will see an arrow pointing up or down and the number of errors in the square where it is located. If the value is correct, then you will get the message “Correct”. If you get the message “Incorrect”, then the value is incorrect, and you must enter a new value. Enter the value to see if it is correct.