Multitrack maze type 2

Multitrack maze type 2 (closed tracks, multiple stations) contains N (typically three) stations inside the maze. The stations are graphically represented by tokens such as stars, etc.. The solution consists of drawing N completely separate closed tracks through the valid paths of the maze, so that each track begins and ends in the same one of the N stations.

Here is an example of a Type 2 multitrack maze:

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Please comment. Your opinion and suggestions for improvement will be appreciated!