Line puzzle: Pipe art

The line puzzle says that pipes can match pairs of identical holes. The playing field should be filled with pipes. Represent your logic and creativity in the game. There are a number of holes with different colors on each level. The pipes are to be placed in the pairs of identical holes. You are going to think about your actions since pipes must not cross. If you need to, cancel your move and use clues. The game features bright graphics and a lot of exciting levels.