Bridges (also known as Hashi, or Hashiwokakero) is a type of logic puzzle published by Nikoli.

In Hashiwokakero you are the king of the islands, and your job is to link the islands according to their populations:
small islands need only one bridge (it says 1 in the island), and larger islands need more bridges (the number in the island).
Then remember that this is all one kingdom, yours, so you must make it possible for all the citizens to travel between all the islands.
In summary:
- Link islands (the circles with numbers) with as many bridges as the number in the island.
- There can be no more than two bridges between two islands.
- Bridges cannot go across islands or other bridges.
- The bridges will form a continuous link between all the islands.