How to Play Shikaku

THE PLAYBOOK · LAIDIANTUAN

Shikaku gives you a focused activity to play in your browser. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Use the example below to understand a decision. Keep the instructions close while learning this activity. Choose a clear next step rather than rushing through the instructions.

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

Review a difficult moment

When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Keep the objective visible.

Your goal

Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Read that aim before choosing your first action. Take a moment to understand the current position.

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. Use the control method described here for this activity. Avoid pressing the same control repeatedly while a move is being processed.

A useful example

A clue 6 may occupy a 2×3 rectangle when other clues allow it. Apply the same reasoning to the position in your own round. Consider the next action carefully.

Watch out for this

No rectangle may contain two clues or overlap another. Compare the situation with the worked example. 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.

Common questions

What is the goal of Shikaku?

Keep this in mind: Cover the board with non-overlapping rectangles, each containing one clue equal to its area.

Before I begin, how do I control Shikaku?

Here is the relevant explanation: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

While learning, what example helps explain Shikaku?

The key detail is this: A clue 6 may occupy a 2×3 rectangle when other clues allow it.

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

For clarity: No rectangle may contain two clues or overlap another.

What format does Shikaku offer?

Keep this in mind: Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.

As a new player, which play mode does Shikaku use?

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