Just as the game of chess can become a lifelong passion, so can chess puzzles. Such puzzles are as old as chess itself and have evolved in a world of their own, often with rules that fly in the face of a normal chess game. Some even feature unorthodox pieces. While certain puzzles are valued for their difficulty or ability to teach competitive chess skills, others are admired for their beauty. Show us how much you know about the terminology and rules behind chess puzzles.