1000+ Author Pictures Download Free Images on Unsplash Tricky Drawer 4 Piece Burr Puzzle In A Box. Contains four burr pieces locked inside a drawer frame; the pieces are rods with notches. Creates interior gaps that add extreme complexity compared with standard burr puzzles. Requires an intricately specific sequence of moves to unlock and remove the four pieces. Handcrafted from high quality rubberwood with fine attention to detail. Ideal challenge for experienced puzzlers or anyone with an engineer's mindset. Doubles as a striking tabletop art piece after solving, suitable for desks or coffee tables.