Sudoku Scoring

Scores for sudokus are calculated using the following rules:

• Your score is recalculated and displayed each time (and only when) the Check button is pressed.
• Points are added to or deducted from your score for each correct or incorrect cell respectively.
• Each cell you enter is worth 1 point in an Easy sudoku, 2 points in a Medium sudoku and 3 points in a Hard sudoku. For example, if you enter a 7 into a cell, then you would score 1 point for getting it correct in an Easy sudoku, but you would lose 2 points for getting it wrong in a Medium sudoku.
• Once you correctly complete and score points for a cell, you can never score nor lose points for that cell again, even if you were to restart the sudoku.