Name: Shikaku by Moadly
Rating: 4.5 (75 reviews)
Author: Moadly

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Shikaku Game - Moadly: 60 Free Brain Training Games

Shikaku

Each number must cover exactly that many squares.

How to play Shikaku?

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Shikaku is a free brain web game that challenges your spatial logic. The goal is to divide a 6x6 grid into rectangles and squares so that each block contains exactly one number. The catch? The area of that rectangle must match the value of the number inside it. It’s a puzzle of geometry and deduction where every move limits your options for the rest of the board.

I designed this as a planning exercise based on the traditional Shikaku logic puzzle. You can’t just draw boxes at random; you have to visualize how the rectangles will fit together without overlapping or leaving empty cells. It’s a great way to test your problem-solving skills and see if you can find the single logical path to clearing the entire grid.

Why Play Shikaku?

It develops spatial reasoning and logical deduction.
New boards are generated automatically for endless variety.
It rewards efficiency and accuracy rather than just speed.
It runs instantly in your browser with no downloads or setup.

"Shikaku is perfect for training logic. Each grid is a new challenge and I love improving my efficiency."

- LogicLover88

"A great puzzle for focus. I enjoy solving each grid and seeing my score improve."

- GridMaster23

The interface is clean so you can focus entirely on the grid layout. Success depends on your ability to look ahead and spot which numbers have the most restricted placement. Shikaku is available anytime in your browser for a calm but challenging mental workout.

Brain Games

Memory

Focus & Clarity

All Ages

Disclaimer: We cannot guarantee that the games will improve brain function, prevent or cure memory loss, or any other condition. Nothing in app is medical advice and reflects personal, subjective experiences only. Treat the app as a game.