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Find your footing in Shikaku

An idea for your next attempt

Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round. Refer to the controls when needed.

What you are aiming for

Cover the board with non-overlapping rectangles, each containing one clue equal to its area. The feedback beside the game helps you follow the round. Review the board or playing area as it changes.

The steps to play

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

Your inputs

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Read a button’s label before selecting it. A new-round button replaces the current round.

Learn from a sample situation

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. Check the stated objective.

Notice this detail

No rectangle may contain two clues or overlap another. Read the feedback to see why an action did not have the expected result. After a move, check what changed. Decide which rule explains the new state before acting again.

Questions that come up during play

For a quick reminder, what is the goal of Shikaku?

Here is the relevant explanation: Cover the board with non-overlapping rectangles, each containing one clue equal to its area.

Before I begin, how do I control Shikaku?

Keep this in mind: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

For this browser game, what example helps explain Shikaku?

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

What should I watch out for in Shikaku?

Here is the relevant explanation: No rectangle may contain two clues or overlap another.

For my first round, what format does Shikaku offer?

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

When I return, 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.

When I return, where should I start with Shikaku?

For clarity: Choose a rectangle’s opposite corners.

Before I begin, do I need an account or a payment for Shikaku?

Here is the relevant explanation: No player account or payment is needed. Game scores are recreational results, not cash prizes.

How can I find Shikaku again?

Here is the relevant explanation: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

While learning, how do I report an issue with Shikaku?

Keep this in mind: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.