Game guide · SYNTAXCODER
How to play Shikaku
Bring your attention to one round of Shikaku. 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. 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.
Practice beyond the first move
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Refer to the controls when needed.
What you need to achieve
Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Keep that objective in view throughout the round. The example below illustrates a decision.
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.
Choosing and moving on screen
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. Read the example below alongside these instructions.
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. Check the stated objective.
A common point of confusion
No rectangle may contain two clues or overlap another. Check the rule before repeating the action. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Helpful answers for players
For my first round, 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.
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.
While learning, what example helps explain Shikaku?
Keep this in mind: 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.
On this playing page, what format does Shikaku offer?
For clarity: 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?
Keep this in mind: 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?
Keep this in mind: Choose a rectangle’s opposite corners.
While reading the Guide, do I need an account or a payment for Shikaku?
For clarity: No player account or payment is needed. Game scores are recreational results, not cash prizes.
On this playing page, how can I find Shikaku again?
Keep this in mind: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
When I return, 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.
