I solved all of them except last 2 pieces, next 15-20 minutes made me sure that something has gone wrong. I decided to read more about these puzzles and knew th

I solved all of them except last 2 pieces, next 15-20 minutes made me sure that something has gone wrong. I decided to read more about these puzzles and knew that they're unsolvable in 50% cases. That was funny, thanks a lot!