You should be able to see what it does. The yellow dots are the squares in question, the red are squares determined as not in the correct path. It records where it has been, and when down the wrong path, will mark red (back-tracking) back to the next fork in the path; then, tries a different path.

Sure, no problem. But, I do not REQUIRE (as in demand) credits. Do, at least, check out some of my other scenarios. BTW, for a thrill, before running, remove the top object and watch it actually create a maze.