Brain Teasers Constantin | Schloss 250+ Lock – Wooden Puzzle Maze Brain Teaser-L900Ct

An Intriguing Wooden Lock That Needs No Key To Open.
There Are Four Sliders That Move Horizontally, But They Can’T Move Freely.
You’Ll Need To Move Them In A Sequential Order And, As The Name Suggests, You Need To Do A Minimum Of 250 Moves To Open The Lock. Invented By The Prolific Puzzle Designer Jean Claude Constantin.