Un puzzle logico: unisci le isole in un'unica catena con ponti

The puzzle board consists of a square grid. On the grid are some islands, each containing a number. The goal is to join all the islands together into a single chain with horizontal and

vertical bridges, so that:

1) No bridge crosses an island or another bridge

2) The number of bridges reaching each island matches the number show on the island

3) Each island has at most 2 bridges in each direction

There is only one correct solution to the puzzle.

You can choose the size of the grid, starting at 10x10 and going up to 28x28.

Bridges Plus has a number of ways to help you solve the puzzle including giving you hints, showing what different chains of islands there are (remember you must end up with a single chain of islands), and showing you if you have made mistakes in your solution so far.