PathFolding is an abstract strategy game. The aim is to fold the longest path around the red circles by connecting the blue/yellow ones. Path crosses are forbidden. Every connection to one circle brings one score point.
The allowed connections are vertical and horizontal, not diagonal. A connection fails if it starts from a blue circle and there are red circles in between. The connection through the red circles can be formed if it starts from a yellow circle. Use yellow circles as jokers to eliminate the red circles and to get a proper position.
A new game starts with 8/15(iPhone/iPad) red circles and 3/5(iPhone/iPad) yellow ones. At the end of current level the red circles that are adjoined by at least one of the blue/yellow circles (right, left, up or down) will appear at next level together with new red circles. Otherwise, only new red circles will be placed. Prior to a next level the number of new red and yellow circles can be set by user. The game is over when the next level is not possible because of the high number of red circles.