interesting concept, but at the time i played it it seems like there is no instructions or description of the game really at all and it took me a minute to figure it out. there is also no feedback on when a piece is rotated correctly or progress is made in solving the puzzle, i found myself surprised when the completed screen popped up because i wasnt sure if that move would solve the puzzle or not. but definitely an interesting concept for a puzzle game and i could see it being a very satisfying thinking game if there was some more audio/visual feedback