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Fast and challenging mathematical game based on INCO.

Rules are fair simple:
★ Select a cell to reduce by one it's value and the value of all those in the same row and column.
★ Reset to zero all the cells to clear a level and move to the next.

Twenty levels of increasing difficulty to challenge even the most brilliant mind.
And you, on which level will you give up?


Permissions:
Internet access: Required by adv and Facebook share
Network status: Required by adv