How do I know that a certain number has been placed in all the necessary cells? Follow Tap the gear icon in the top right corner. Tap Settings. Enable the Hide Used Numbers option. Numbers that have been placed in all 9 cells correctly will disappear from the bottom panel of the game screen. Related articles How points are calculated? How do I change the difficulty level? How do I delete a number entered by mistake? Comments 0 comments Article is closed for comments.
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