Charming sudoku is one sudoku game.
The rule is simple: Fill in the board so that the numbers 1 through 9 occur exactly once in each row, column, and 3x3 box. Your initial game board will consist of several numbers that are already placed. Your goal is to fill in the empty squares following the simple rule above.
Charming Sudoku Features,
***4 difficulty settings; different difficulty, different experience;
***Smart notes;
***Error checking;
***Hints;
***Share it with your friends.