The Substitute Teacher
Center to Center
A Peg Solitaire Puzzle
This is the classic peg solitaire puzzle. The vertical line cell is empty at the start, but the one remaining peg must be in it at the end. The puzzle expert Henry Dudeney published a 19-move solution in 1908, but a few years later an 18-move solution was found.
Credits: Pieter Van Delft & Jack Botermans CREATIVE PUZZLES OF THE WORLD, page 172, Harry N. Abrams, Inc. Publishers, New York