Knots and Borromean Rings, Rep-Tiles, and Eight Queens: Martin Gardner's Unexpected Hanging, Paperback/Martin Gardner

The hangman s paradox, cat s cradle, gambling, peg solitaire, pi and e. All these and more are back, in Martin Gardner s inimitable style, with updates on new developments and discoveries. Read about how knots and molecules are related, take a trip into the fourth dimension, try out new dissections of stars, crosses and polygons, and challenge yourself with new twists on classic games."