Game guide · RJCWPX
Shikaku: how a round works
Choose a round of Shikaku and settle into its rules. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Keep the game area visible while you use its controls. Compare the starting position with the example in the Guide. Look at what changes after your first action.
Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.
Take a closer look while playing
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Make the next step deliberately.
Understand the aim
Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Read that aim before choosing your first action. Try to explain the aim in your own words.
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.
How to use the 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. Contact us with the game and device if a control does not respond.
A useful example
A clue 6 may occupy a 2×3 rectangle when other clues allow it. Compare this with the rule that governs the move. Choose a deliberate next step.
A useful caution
No rectangle may contain two clues or overlap another. Take a moment to reassess the position before continuing. 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.
Questions about this game
While learning, 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?
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
While reading the Guide, what example helps explain Shikaku?
A clue 6 may occupy a 2×3 rectangle when other clues allow it.
On this playing page, what should I watch out for in Shikaku?
No rectangle may contain two clues or overlap another.
What format does Shikaku offer?
For clarity: 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.
For a quick reminder, where should I start with Shikaku?
The key detail is this: Choose a rectangle’s opposite corners.
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.
Before I begin, 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.
For my first round, how do I report an issue with Shikaku?
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.