THE PLAYBOOK · CDBRM
How to play Futoshiki
Futoshiki gives you a focused activity to play in your browser. Place 1–4 once in each row and column while obeying every inequality. Check the relevant rule before repeating a move. Compare the starting position with the example in the Guide. Look at what changes after your first action.
Twelve 4×4 puzzles with fixed starter values.
Read before acting
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Notice the feedback after each input.
Your goal
Place 1–4 once in each row and column while obeying every inequality. Use the instructions to see which actions move you towards it. The example below illustrates a decision.
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. On a smaller screen, keep the active part of the board within view. Make sure you are interacting with the game rather than the surrounding page.
A useful example
r1c2 < r1c3 means row 1 column 2 is smaller than row 1 column 3. Apply the same reasoning to the position in your own round. Keep the game’s format in mind.
Watch out for this
An inequality specifies order, not an exact difference. A different version of the game may use a different rule. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.
Common questions
Before I begin, what is the goal of Futoshiki?
Place 1–4 once in each row and column while obeying every inequality.
As a new player, how do I control Futoshiki?
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.
For a quick reminder, what example helps explain Futoshiki?
Here is the relevant explanation: r1c2 < r1c3 means row 1 column 2 is smaller than row 1 column 3.
When I return, what should I watch out for in Futoshiki?
The key detail is this: An inequality specifies order, not an exact difference.
Before I begin, what format does Futoshiki offer?
Twelve 4×4 puzzles with fixed starter values.
Which play mode does Futoshiki 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.