Attempting to Solve an Impossible Puzzle (5 Extra Pieces and No Edge!)
37:37
Is this genuinely the most difficult puzzle in the world?
26:47
Puzzles que parecem difíceis, mas na verdade são fáceis!
34:54
The hardest puzzle I've done yet
20:45
Doing a puzzle of a puzzle of a puzzle of a puzzle of a puzzle of a puzzle of a puzzle of a puzzle
30:48
I forced John Green to solve a jigsaw puzzle
24:14
Which Brands Did it Best?? // Ten 300 Piece Puzzles Compared!
15:57
The Impossible Titan Puzzle - Why it's so Incredibly Difficult and how to open it!!
33:46