New to Futoshiki? Learn the two rules on a 5×5, then get used to reading the signs: the point faces the smaller number, a sign rules numbers out on both sides, and signs pointing the same way make a chain. With those and some counting, you can finish every Easy level in the game. This page puts the guides in that order, with a six-row warm-up to check yourself before you move up a size.
Your path, in order
- Learn the rules. The Futoshiki rules page solves the game’s first level step by step. The one idea to take away: each number once in every row and column, and every sign holds.
- Solve your first 5×5 from the signs. Look for a square less than a 2 (it’s 1), and for the one square in a line that could take the 1 or the 5.
- Count every line. When a square’s row and column leave it only one number, or a number has only one place left in a line, fill it in.
- Learn the techniques one at a time. How to solve Futoshiki covers all six; the first three are all you need on Easy.
- Do the warm-up below. Six rows, each practising an idea from the guides above.
- Pick up speed. The Futoshiki tips page adds where to look after every move.
- When a puzzle goes wrong, read the six common mistakes. The big one is putting a number in before it’s certain.
- Move up a size when you’re ready (see below).
Warm-up: six rows
Each is a single row, so it needs each number once: 1 to 4 in a row of four, 1 to 5 in a row of five. Work out what you can be sure of, then open the answer. Every answer is everything that row can tell you on its own.
1. Less than 2
Show the answer
Square 2 is 1: it’s less than 2, and 1 is the only number that is. Squares 1 and 4 are 3 and 4, but either way round works.
2. A full chain
Show the answer
1, 2, 3, 4. Each square is bigger than the one before, and there are only four numbers to go round.
3. Smaller than both neighbours
Show the answer
Square 2 is 1. The first three squares share 1, 2 and 3, since the 4 is taken, and square 2 is smaller than both the others, so it gets the smallest. Squares 1 and 3 are 2 and 3, either way round.
4. A clue at the top of a chain
Show the answer
1, 2, 3, 4. Two numbers less than 3, in order: 1 then 2. That leaves 4 for the last square.
5. One clue, two signs
Show the answer
1, 2, 3, 4. Square 1 is less than 2, so it’s 1. That leaves 3 and 4 for the last two squares, and the sign puts the 3 first.
6. Where does the 1 go?
Show the answer
Square 2 is 1. Ask where the 1 can go: not square 1 or square 3, which are both bigger than square 2; not square 4, which is the 3; and not square 5, which is more than 3. That leaves square 2. The other squares can still go more than one way.
When to move up a size
You’re ready for Medium (6×6) when you can finish Easy levels without guessing, you read signs down columns as easily as across rows, and you look for the 1s and the top number without thinking about it.
The bigger sizes don’t just take longer; they ask for more. Every Easy level finishes with the signs and counting. On Medium, 20 of the 50 levels also need a pair or a hidden pair, so it’s time to start writing notes. On Hard (7×7), every level needs what-if, about 11 times each.