What is Hashi?
Hashi, short for Hashiwokakero and also known as Bridges, is a logic puzzle of islands and connections. Each numbered island says how many bridges it needs. Your job is to draw them, one or two between neighbors, until the whole map is linked together.
The puzzles look calm but reward careful counting. Play hashi online free here, with fresh maps from small warm-ups to large 15×15 archipelagos.
How to play Hashi
- Each circle is an island. Its number is how many bridges must connect to it.
- Bridges run straight, horizontally or vertically, between two islands.
- Two islands can be joined by one or two bridges, never more.
- Bridges may not cross each other or pass over an island.
- When you finish, all islands must form a single connected group.
Hashi tips
Corners and edges first
An island in a corner has only two neighbors. If it shows 4, it needs two bridges to each of them; if it shows 3, it needs at least one bridge to each.
Count what is left
Compare an island's number with the bridges it can still receive. When the only possible bridges equal what is needed, draw them all.
Avoid closed groups
Two 1-islands must never link only to each other, and two 2-islands never with a double bridge, because that group could never join the rest.
Frequently asked questions
What does Hashiwokakero mean?
It is Japanese for build bridges. The puzzle is also called Bridges, Hashi, or Chopsticks in some books.
Can bridges cross diagonally?
No. All bridges are straight horizontal or vertical lines, and they can never cross one another.
How many solutions does a hashi puzzle have?
One. Each puzzle has a unique solution you can reach by logic alone.
