How to Play Shikaku

THE PLAYBOOK · LINCANGCHU

Use a short break to learn the rhythm of Shikaku. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Look at what changes after your first action. Check the rule that explains your first action. Keep the game area visible while you use its controls.

Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.

Keep the aim in sight

Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules. Make the next step deliberately.

Your goal

Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Keep that objective in view throughout the round. Keep the controls in easy reach.

Step by step

Choose a rectangle’s opposite corners.
It must contain one clue and have the matching area.
Click an existing rectangle to remove it.
Cover every square to finish.

Controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Keep the playing area visible while using these controls. A new-round button replaces the current round.

A useful example

A clue 6 may occupy a 2×3 rectangle when other clues allow it. Use the example as a guide rather than a substitute for reading your board. Read the matching step again.

Watch out for this

No rectangle may contain two clues or overlap another. Check the rule before repeating the action. After a move, check what changed. Decide which rule explains the new state before acting again.

Common questions

For this browser game, what is the goal of Shikaku?

Cover the board with non-overlapping rectangles, each containing one clue equal to its area.

On this playing page, how do I control Shikaku?

The key detail is this: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

When I return, what example helps explain Shikaku?

Keep this in mind: A clue 6 may occupy a 2×3 rectangle when other clues allow it.

While learning, what should I watch out for in Shikaku?

The key detail is this: No rectangle may contain two clues or overlap another.

On this playing page, what format does Shikaku offer?

Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.

On this playing page, which play mode does Shikaku use?

Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.