Futoshiki

Order the square.

A small latin square with inequality signs between some neighbours. The daily board is 5×5; Library packs go up to 7×7.

How to play

Every row and column holds each number once: 1 to 5 on the daily board, more on bigger ones.
The open side of a sign always faces the larger number.
In Relaxed mode a wrong digit shows in clay; in Challenge mode nothing is marked. The puzzle finishes when every sign holds.

Tips and tricks

Ends of a sign. The small side of a sign can never hold the largest number, and the large side can never hold 1.
Follow chains. In a < b < c on a 5×5 board, a is at most 3 and c at least 3.
Squeezed squares. A square with a sign on each side pointing the same way can't be the smallest or the largest number.
Last place left. Like sudoku, look for the only square in a row or column where a number can still go.
Pencil, then prune. Write candidates, then cross out what each sign forbids. Chains often collapse to a single answer.

Where to find it

It takes its turn on the daily page alongside five other rotating games, and the Library always has Easy, Medium and Hard tracks of it. Stuck? A hint costs ink drops, and Inkbloom Plus makes hints unlimited.