This is an example of a completed Hashi (also known as Bridges) puzzle. The grid is made up
of a series of islands (the circles) connected by lines, or 'bridges'.
Each clue tells you how many bridges are connected to that islands.
A couple of additional rules:
- All the islands and bridges must be one connected whole.
- There can't be more than 2 bridges between two islands.
- Connecting bridges can't cross each other.
- Bridges can only be horizontal or vertical, not diagonally.