THE PLAYBOOK · XICHONGLT
Shikaku: rules and examples
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. Make your first input carefully and watch the result. Check the relevant rule before repeating a move.
Solve ten 5×5 rectangle puzzles. Each clue belongs to exactly one rectangle of the stated area.
Bring this focus to a round
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Keep the objective visible.
The challenge in front of you
Cover the board with non-overlapping rectangles, each containing one clue equal to its area. Use the instructions to see which actions move you towards it. Try to explain the aim in your own words.
The order of 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.
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. A careful first action helps you become familiar with the layout. Look at the feedback after the action.
See the idea in action
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.
Check this before moving on
No rectangle may contain two clues or overlap another. Compare the situation with the worked example. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Further help with the game
For my first round, 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.
How do I control Shikaku?
Keep this in mind: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
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?
Here is the relevant explanation: No rectangle may contain two clues or overlap another.
While learning, 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 key detail is this: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.