Your objective is to free a small metal ball from the maze through the exit hole. This is accomplished by maneuvering the wooden sliders around the fixed metal pegs until the opening is clear of obstruction.

The shaped tracks in the puzzle display like an "N", "5" or a "2", hence the name of this series of puzzles that is available in different sized grids. This particular version of the series features a 3x3 grid of pegs and channels.

• See at Puzzle Master