How do I delete a number entered by mistake? Select a cell whose number you want to change and tap the Erase icon in the bottom panel. Related articles How are points calculated? How do I know that a certain number has been placed in all the necessary cells? How do I know that the sudoku is solved correctly and complete? How do I remove ads? I think some of the sudoku cannot be solved. The numbers can't fit in correctly. Comments 0 comments Article is closed for comments.

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