SShikakuRectangle puzzle studio

Create a Challenge

Create a custom Shikaku challenge with a friend.

We will guide you through a few simple choices, then generate one or three candidate puzzles for you to try before you share.

Guided builder No puzzle selected yet

Step by Step

Tell us what kind of challenge you want to send.

You choose the board size, the difficulty, whether the puzzle should be timed, and whether we should prepare one puzzle or three close options. Then you try them and keep the one worth sharing.

Step 1

Choose a board size

Smaller boards are easier to read quickly. Larger boards feel more demanding and more dramatic to share.