Game guide · YCBY120
Know the goal in Shikaku
Take a moment with Shikaku before moving to another game. 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. Use the example below to understand a decision.
Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.
Bring this focus to a round
Before your first action, say what you are trying to achieve. Then compare the result with the goal. Use the example to check your reasoning.
The purpose of your moves
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. Notice how the game responds to your input.
The steps to play
- 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.
The controls to know
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. Avoid pressing the same control repeatedly while a move is being processed.
One way to understand the rules
A clue 6 may occupy a 2×3 rectangle when other clues allow it. Focus on why the action is allowed, not only its outcome. Verify the rule before continuing.
A useful caution
No rectangle may contain two clues or overlap another. Read the feedback to see why an action did not have the expected result. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.
Read these answers for extra help
When I return, what is the goal of Shikaku?
The key detail is this: Cover the board with non-overlapping rectangles, each containing one clue equal to its area.
While reading the Guide, how do I control Shikaku?
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?
For clarity: A clue 6 may occupy a 2×3 rectangle when other clues allow it.
While reading the Guide, what should I watch out for in Shikaku?
For clarity: No rectangle may contain two clues or overlap another.
What format does Shikaku offer?
The key detail is this: 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?
The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
Before I begin, where should I start with Shikaku?
Here is the relevant explanation: Choose a rectangle’s opposite corners.
On this playing page, 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.
While learning, 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.
How do I report an issue with Shikaku?
For clarity: 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.
