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Solo · FREE PLAY

Shikaku

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Logic & numbers
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Game guide · LCHFY

The essentials of playing Shikaku

Try Shikaku at your own pace and keep its objective in view. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Check the relevant rule before repeating a move. Compare the starting position with the example in the Guide. Check the relevant rule before repeating a move.

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

Practice beyond the first move

Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Notice the feedback after each input.

What counts as success

Cover the board with non-overlapping rectangles, each containing one clue equal to its area. An attractive position is not enough unless the goal is met. Review the board or playing area as it changes.

Work through the instructions

  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.

Input guidance

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. On a smaller screen, keep the active part of the board within view. A new-round button replaces the current round.

See the idea in action

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. Look for the relevant detail.

A common point of confusion

No rectangle may contain two clues or overlap another. A different version of the game may use a different rule. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.

Common questions

While learning, what is the goal of Shikaku?

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

As a new player, how do I control Shikaku?

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

Before I begin, what example helps explain Shikaku?

A clue 6 may occupy a 2×3 rectangle when other clues allow it.

For a quick reminder, what should I watch out for in Shikaku?

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

For a quick reminder, what format does Shikaku offer?

Here is the relevant explanation: Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.

Before I begin, which play mode does Shikaku use?

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

On this playing page, where should I start with Shikaku?

For clarity: Choose a rectangle’s opposite corners.

As a new player, do I need an account or a payment for Shikaku?

The key detail is this: No player account or payment is needed. Game scores are recreational results, not cash prizes.

As a new player, how can I find Shikaku again?

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

As a new player, how do I report an issue with Shikaku?

The key detail is this: 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.

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