The unexpected hanging and other mathematical diversions

"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"--