Bridges puzzle电脑版

Puzzle also known as Hashiwokakero or Ai-Ki-Ai.Unlimited numbers of free levels.Two grid type: square, honeycomb.Any size from 3x3 to 15x15.Rules: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:1) They must begin and end at distinct islands, travelling a straight line in between.2) They must not cross any other bridges or islands.3) They may only run orthogonally(orthogonally to the side of cell for honeycomb grid).4) At most two bridges connect a pair of islands.5) The number of bridges connected to each island must match the number on that island.