THE PLAYBOOK · SHENGJIQJ
Shikaku: rules and examples
Open Shikaku, check the instructions and begin a round. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Look at what changes after your first action. Compare the starting position with the example in the Guide. Keep the game area visible while you use its controls.
Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.
One thing to notice as you play
When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Refer to the controls when needed.
The challenge in front of you
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 playing sequence
- 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.
Using the playing area
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. Return to the rules if the result is unexpected.
Try this example
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. Consider the next action carefully.
An important reminder
No rectangle may contain two clues or overlap another. Take a moment to reassess the position before continuing. Read one step at a time and try it on the playing area. Match the instruction to the control you use.
Common questions
When I return, 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.
As a new player, 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?
Here is the relevant explanation: A clue 6 may occupy a 2×3 rectangle when other clues allow it.
For this browser game, what should I watch out for in Shikaku?
No rectangle may contain two clues or overlap another.
While reading the Guide, what format does Shikaku offer?
Keep this in mind: Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.
For my first round, 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.
