SHIKAKU PUZZLE GUIDE
What is a Shikaku puzzle?
Shikaku is a Japanese logic puzzle where you divide a grid into rectangles. Every rectangle must contain exactly one number, and its area must match that number.
How does Shikaku work?
Start with the numbered clues on the grid. A clue tells you the exact number of cells its rectangle must cover. Draw horizontal or vertical rectangles until every cell belongs to one patch and every clue has its own rectangle.
Why is Shikaku a good logic puzzle?
Shikaku rewards deduction instead of guessing. You compare possible rectangle shapes, use the edges of the grid, and remove choices that collide with other clues. Small boards are approachable, while larger boards offer deep spatial reasoning.
Play Shikaku offline with Recto
Recto turns the classic rectangle division puzzle into a calm mobile game with more than 1,100 handcrafted levels. Choose from five difficulty tracks, use a hint when needed, and keep solving without an internet connection.
Frequently asked questions
Is Shikaku the same as a rectangle puzzle?
Yes. Shikaku is also known as a rectangle division puzzle because the goal is to divide the whole grid into numbered rectangles.
Is Recto free to play?
Yes. Recto is free to download and play on iOS and Android.
Can I play Shikaku without Wi-Fi?
Yes. Recto stores its puzzles on your device, so you can play offline.
Continue exploring
Ready to solve a Shikaku?
Download Recto and start with a calm, handcrafted puzzle.