THE PLAYBOOK · PT-BUS
How to play Futoshiki
The PT-BUS guide to Futoshiki starts with control confidence. Your task is to place 1–4 once in each row and column while obeying every inequality. The controls and example below describe this exact implementation.
Twelve checked 4×4 puzzles with fixed starter values.
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
Place 1–4 once in each row and column while obeying every inequality.
Step by step
- Select an editable square.
- Read inequalities by their row/column coordinates below the board.
- Enter 1–4.
- Check puzzle verifies both Latin-square rules and inequalities.
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
r1c2 < r1c3 means row 1 column 2 is smaller than row 1 column 3.
Watch out for this
An inequality specifies order, not an exact difference.
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?
r1c2 < r1c3 means row 1 column 2 is smaller than row 1 column 3.
What is included in this edition?
Twelve checked 4×4 puzzles with fixed starter values.
