Futoshiki.
1 2 3 4
Use each number once in every row and column.
1 3
See a worked example The narrow end points to the smaller number.
Select a square, then a number.
Puzzle solved.
Every row, column and sign is complete.
Arrows move. 1–4 enter a number. Backspace erases. Underlined numbers are given.
A new daily puzzle is ready. You can finish this one first.
Futoshiki rules
Futoshiki is a number puzzle with two kinds of clues: given numbers and comparison signs. Fill the empty squares with 1–4. Numbers cannot repeat in a row or column, and every sign must be true.
Start by following a chain of signs, or find the number missing from a nearly full row. Reveal a cell corrects an incorrect entry first. Daily and practice progress are kept separately in this browser.
Learn the rules and a first strategy →