Оригинал: 1280×720, 82,9 КБ
Moving hole multi-sided puzzle.
My inspiration was Vladimir Krasnouhov and his series of puzzles called Identikit (Photorobot).
I also used the idea of Frank Potts from his Janus puzzle.
But in my puzzle I added one more - the third layer.
The task of the puzzle is clear from its name. You need to transform 2017 to 2018.