THE PLAYBOOK · DJCFW
A practical guide to Shikaku
Read the aim of Shikaku, then make your first move. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Look at what changes after your first action. Keep the instructions close while learning this activity. 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.
A small practice goal
Before your first action, say what you are trying to achieve. Then compare the result with the goal. Make the next step deliberately.
Aim for this result
Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Keep that objective in view throughout the round. Try to explain the aim in your own words.
Follow these playing steps
- 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.
Getting comfortable with 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. Use the control method described here for this activity. Avoid pressing the same control repeatedly while a move is being processed.
Follow the example
A clue 6 may occupy a 2×3 rectangle when other clues allow it. Your next round may have a different position, so inspect it before acting. Verify the rule before continuing.
One detail worth checking
No rectangle may contain two clues or overlap another. Read the feedback to see why an action did not have the expected result. Before your first action, say what you are trying to achieve. Then compare the result with the goal.
Answers about the rules and controls
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.
For this browser game, how do I control Shikaku?
Here is the relevant explanation: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
For this browser game, what example helps explain Shikaku?
Here is the relevant explanation: 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?
The key detail is this: 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.
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.