I liked this level that is a good model to learn how ordering can be the main key to winning. Like said by hi19hi19, it could be improved visually. For example, why 3 empty rows right side, 1 left and 2 at the bottom? One on each side would re-inforce the symmetry.
(11 years ago) No idea how, but I got it 1st try ... lol ... GOOD level!
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EDIT 2022, 4th Oct., - rebeaten and adding the stars, today. :)