The Mathematical Gardner

Games.- Anyone for Twopins?.- Pretzel Solitaire as a Pastime for the Lonely Mathematician.- Some Remarks about a Hex Problem.- A Kriegspiel Endgame.- Mental Poker.- Cheap, Middling, or Dear.- A Random Hopscotch Problem, or How to Make Johnny Read More.- Geometry.- Wreaths of Tangent Circles.- Bicycle Tubes Inside Out.- Flexing Surfaces.- Planting Trees.- Slicing It Thin.- How Did Pappus Do It?.- Two-Dimensional Tiling.- Fault-Free Tilings of Rectangles.- Disections Into Equilateral Triangles.- In Praise of Amateurs.- Some Problems on Plane Tiling.- Angels and Devils.- Three-Dimensional Tiling.- Packing Problems and Inequalities.- Can Cubes Avoid Meeting Face to Face?.- Packing Handed Pentacubes.- My Life Among the Polyominoes.- Fun and Problems.- Disappearances.- Noneuclidean Harmony.- Magic Cuboctahedrons.- Games, Graphs, and Galleries.- Probing the Rotating Table.- Numbers and Coding Theory.- Supernatural Numbers.- The Graph Theorists Who Count-and What They Count.- Error-Correcting Codes and Cryptography.