The tangram, known to the Chinese as the Seven Clever Pieces, is a moving puzzle piece, where designs and figures are made using seven geometric shapes known as tans. The tans are traditionally cut from a square and there are two small, one medium, and two large triangles, one parallelogram, and one square. The most popular way of playing with tangrams is to recreate a shape seen only in silhouette. The rules are simple: Match your imagination against the inventiveness of centuries of experts to recreate the pictures in the book - or make up your designs. Solving a difficult puzzle by having the seven tans slide together to create a lively or evocative shape creates a sense of mystery and wonder. Inside this ingenious, durable pack are two complete tangrams in contrasting colors and a concise book that details the history and background of this fascinating art. There are 500 different tangram designs, including 50 original dazzling and complex doubleset designs to tease and tantalize. Full solutions are provided for each puzzle and there are also intructions for competitive play, so two people can duel in an artistic challenge., ISBN13:9780804832090 ISBN10:0804832099 Material Type:paperback