Question 1

How is Futoshiki different from Sudoku?

Accepted Answer

Numbers obey row/column uniqueness and must also satisfy inequality symbols between adjacent cells.

Question 2

Is there a tutorial?

Accepted Answer

Use the Help button for rules and a quick start guide.

Question 3

Is this free and no download?

Accepted Answer

Yes—this inequality Sudoku runs in your browser with no downloads; ad-free and mobile-ready.