Hype Shikaku

Carve the grid into numbered rectangles.

Divide the whole grid into rectangles so each one holds a single number equal to how many squares it covers. Tap a number, then tap a far square to draw its box. Free hint, no timer, play-money Neons only.

Rectangles0/8

Banked0 Neons

BoardEasy

Tap a number to pick it up.

Easy

Medium

Hard

Shikaku: how to play, rules & tips

Play Shikaku free online. Divide the whole grid into rectangles so each one holds a single number equal to its area.

How to play Shikaku

Tap a numbered square to pick it up. It lights up gold. Then tap another square, and a rectangle is drawn from the number to that square.

Each rectangle must contain exactly one number, and its area must equal that number. A 6 can be a 1x6, 2x3, 3x2 or 6x1 box. Every square of the grid ends up in exactly one rectangle.

A rectangle that overlaps another or is the wrong size turns red. When the whole grid is covered with correct rectangles, the puzzle is solved.

Shikaku puzzles and sizes

There are 10 puzzles: four easy 5x5 grids, three medium 6x6 grids and three hard 7x7 grids. Use Next puzzle after a win or switch puzzles at any time.

Each board was checked by a solver to have exactly one solution. The free Hint always places or fixes one rectangle correctly. There is no timer, and Reset board clears your rectangles without taking back Neons you have banked.

Shikaku tips

A 1 is a rectangle on its own. Lock it in first.
Prime numbers like 5 and 7 can only be a straight line. Near an edge or between other numbers, that line often fits only one way.
Find squares that only one number can reach. That square must belong to that number's rectangle.
Big numbers in tight corners usually have the fewest shapes. Try them early.
A rectangle can never contain a second number, so other numbers act as walls.

Frequently asked questions

Is Shikaku free?

Yes. HypeGameRoom is free: no sign-up, no download and nothing to buy to play. Arcade games reward Neons, a play-only currency that can never be cashed out.

Do the rectangles have to be squares?

No. Any rectangle works as long as its area matches the number inside it. Squares are allowed too.

Does every square need to be covered?

Yes. The rectangles must cover the whole grid with no gaps and no overlaps.

Is there a hint?

Yes. Hint is free and always places or fixes one rectangle correctly.