Patches Unlimited – Free Shikaku Logic Puzzles | Infinite Puzzles
Cutting Patches...
Divide the grid into rectangles. Each clue must sit inside exactly one rectangle. Numbered clues fix the rectangle's area; unnumbered (smaller) clues are freeform — pick any size that fits. No overlaps, no gaps.
Shape types
Square
Equal width and height (e.g. 2×2, 3×3)
Tall
Taller than wide (e.g. 1×4, 2×3)
Wide
Wider than tall (e.g. 4×1, 3×2)
Freeform
Any rectangle works for this clue
Unnumbered
No number — could be square, tall, wide, or freeform
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Frequently Asked Questions about Patches
Common player questions, solvability guarantees, and deduction tips.
1What are the rules of Patches (Shikaku)?
Patches features classic Shikaku rectangle partition mechanics. You divide the grid into clean rectangles and squares, each containing exactly one number matching its total area. On Infinite Puzzles, you can practice unlimited boards across 5×5, 7×7, and 8×8 grids with zero daily wait times.
2Are all Patches puzzles solvable without guessing?
Yes! Every grid is guaranteed to have exactly one valid partition solution that can be deduced using area factorization and corner constraints.
3How do difficulty levels work in Patches?
Easy boards use 5×5 grids for quick casual solving, Medium expands to 7×7 with multi-cell deductions, and Hard features complex 8×8 grids with interlocking rectangles.