Shikaku Number Puzzle

Shikaku Number Puzzle is a clean and clever HTML5 logic puzzle game inspired by a classic Japanese brain teaser. Designed for fans of number-based puzzles, this free online game invites you to divide a grid into perfectly sized rectangles — but only if your logic is sharp enough.

How to Play Shikaku Number Puzzle
Each level presents a grid containing several numbers. Your task is to create rectangular zones where:

Each rectangle must contain exactly one number.

That number indicates the area of the rectangle (e.g., a 4 must be in a 2x2 or 4x1 space).

Rectangles cannot overlap.

As you move up through the levels, the puzzles require deeper analysis, more planning, and a better understanding of spatial layout.

Winning Tips and Logic Tactics
Start with obvious numbers: A 1 must be a 1x1 cell, while prime numbers can only form specific shapes.

Eliminate impossibilities: Use deduction to rule out placements that conflict with surrounding numbers.

Look for corner constraints: Corners and edges limit placement options and are often the best starting points.

Why Puzzle Fans Love Shikaku Number Puzzle
Minimalist design keeps your focus on solving.

Fully responsive — enjoy on mobile, tablet, or desktop.

Ideal for lovers of logic grid puzzles, Japanese number games, and free brain training challenges.

Whether you're a sudoku master or a casual logic enthusiast, Shikaku Number Puzzle delivers a clean, rewarding mental workout with every completed grid. Play now and sharpen your logic like never before.