Solve Maze Without Feedback
This question is just a puzzle, so clearly off-topic here, but still it's funny to find answer :-)

For this specific maze there exists sequence of moves that we end up in S.


   a) 12*D - and we can end up on top of any +:


 + + + + + + + + + + + + + + + + + + + + + + + + +
 + _ @ @ _ @ @ _ + _ @ @ _ @ @ _ + _ @ @ _ @ @ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + @ @ @ + _ + _ + @ @ @ + _ + _ + @ @ @ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ @ @ @ @ @ _ @ @ @ @ @ @ @ @ @ _ @ @ @ @ @ @ +
 + + + + + + + _ + + + + + + + + + _ + + + + + + +
 + _ @ @ _ @ @ _ @ _ @ @ _ @ @ _ @ _ @ @ _ @ @ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ S _ + _ +
 + _ + @ @ @ + _ + _ + @ @ @ + _ + _ + @ @ @ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ +
 + + + + + + + + + + + + + + + + + + + + + + + + +



   b) 22*L


 + + + + + + + + + + + + + + + + + + + + + + + + +
 + @ _ _ _ _ _ _ + @ _ _ _ _ _ _ + @ _ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + @ _ _ + _ + _ + @ _ _ + _ + _ + @ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + _ + + + + + + + + + _ + + + + + + +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ S _ + _ +
 + _ + @ _ _ + _ + _ + @ _ _ + _ + _ +@_ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + + + + + + + + + + + + + + + + + + +



   c) 1*R


 + + + + + + + + + + + + + + + + + + + + + + + + +
 + _ @ _ _ _ _ _ + _ @ _ _ _ _ _ + _ @ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + _ @ _ + _ + _ + _ @ _ + _ + _ + _ @ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + _ @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + _ + + + + + + + + + _ + + + + + + +
 + _ @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ S _ + _ +
 + _ + _ @ _ + _ + _ + _ @ _ + _ + _ + _ @ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + _ @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + + + + + + + + + + + + + + + + + + +



   d) 3*U


 + + + + + + + + + + + + + + + + + + + + + + + + +
 + _ @ _ @ _ _ _ + _ @ _ @ _ _ _ + _ @ _ @ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + _ @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + _ + + + + + + + + + _ + + + + + + +
 + _ @ _ @ _ _ _ _ _ _ _ @ _ _ _ _ _ _ _ @ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ S _ + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + _ @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + + + + + + + + + + + + + + + + + + +



   e) 19*L


 + + + + + + + + + + + + + + + + + + + + + + + + +
 + @ _ _ _ _ _ _ + _ _ _ _ _ _ _ + _ _ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + _ + + + + + + + + + _ + + + + + + +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + _ + + _ + + _ + _ + + _ + + _ + _ + + _ + + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ S _ + _ +
 + _ + _ _ _ + _ + _ + _ _ _ + _ + _ + _ _ _ + _ +
 + _ + + + + + _ + _ + + + + + _ + _ + + + + + _ +
 + @ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ +
 + + + + + + + + + + + + + + + + + + + + + + + + +



   Now it's simple: 5*D, 16*R, 7*D, 5*U, 3*R, 2*D and finish