Description:
A binary logic puzzle with 120 unique-solution levels. Fill the grid with Os and Is so each row and column holds an equal number of both, never three of a kind in a line, and no two rows or columns match. Boards scale from 6x6 up to a brain-bending 10x10.
Instructions:
Tap a cell to cycle blank, O, then I. Balance every row and column, avoid three-in-a-line, and keep all rows and columns unique. 120 unique-solution levels.
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