Description:
A number logic puzzle with 120 unique-solution levels. Fill the grid so each row and column uses every number once, while obeying the greater-than and less-than signs placed between cells. Boards run from a quick 4x4 to a demanding 6x6.
Instructions:
Tap a cell to raise its number; tap past the maximum to clear it. Each row and column must use every number once, and every arrow sign between two cells must be satisfied. 120 unique-solution levels.
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