THE PLAYBOOK · XH0411
How to play Futoshiki
Play Futoshiki on XH0411, then compare your approach with the example below. Place 1–4 once in each row and column while obeying every inequality. The accompanying practice note focuses on read the feedback.
Twelve checked 4×4 puzzles with fixed starter values.
Read the feedback
Status messages explain the current state and rejected actions. Check them when an action does not behave as you expected.
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
What is included in this edition?
Twelve checked 4×4 puzzles with fixed starter values.
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.
