THE PLAYBOOK · PT-BUS
How to play Shikaku
For Shikaku, PT-BUS puts the actual rules alongside the playable board or activity. Cover the board with non-overlapping rectangles, each containing one clue equal to its area. The suggested practice focus is control confidence.
Ten unique 5×5 rectangle-partition puzzles.
Control confidence
Check the controls before starting. On a touch screen, keep the game area visible and use the labelled buttons where they are provided.
Your goal
Cover the board with non-overlapping rectangles, each containing one clue equal to its area.
Step by step
- 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.
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 useful example
A clue 6 may occupy a 2×3 rectangle when other clues allow it.
Watch out for this
No rectangle may contain two clues or overlap another.
Common questions
Which controls should I use?
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
Can you show a concrete example?
A clue 6 may occupy a 2×3 rectangle when other clues allow it.
What is included in this edition?
Ten unique 5×5 rectangle-partition puzzles.