Yojic M5 lite

Ha! ha! ha! I have never heard about "YM5".What is it? Yojic Matrix is a kind of sliding puzzle. YM5 is one of yojic matrix puzzles. Seems classical nice on art phone a little like a Rubik's. It needs your imaginable and deep ideas. Ayway, would you try YM5lite. Details (Google Search: Yojic Matrix)