Object of game

	The object of the game is to join the different pipe pieces to a path for the water flow  to follow.  The bottom pipe piece on the right is the next pipe which will be placed where the player selects with the mouse.

Scoring

20   	Points are added for each pipe piece in which  the water flow starts.

30 	Points are added for  each unidirectional pipe piece in which the water flow starts.
 
 40  	Points are added for each intersectin pipe piece in which the water flow  has started in both axes.
 
 10  	Points are subtracted for each unused pipe piece at the end of each level.
 
End of level

The level ends when it is no longer possible for the water flow to continue.
 
End of game

The game ends when the water flow cannot continue anymore and the number of remaining pieces is greater than zero.