Bridges (Logic puzzle)

## Description

"Bridges" is one of pencil puzzle game.
The goal is to connect all of the islands into a single connected group by drawing a series of bridges between the islands.

The bridges must follow certain criteria.
・They must begin and end at distinct islands, travelling a straight line in between.
・They must not cross any other bridges or islands.
・They may only run orthogonally.
・At most two bridges connect a pair of islands
・The number of bridges connected to each island must match the number on that island.