Stomachion 
The puzzle consists of the dissection of a square of 14 polygonal pieces: 11 triangles, 2 quadrilateral ones and a pentagon as the following figure indicates it:

STOMACHION  ARQUIMEDES'S SQUARE
With the pieces of the Stomachion there can be constructed triangles, squares, rhombuses, rectangles, romboides, trapezes, trapezoids, pentagons, hexagons ... alguas of them they are:
Since tanbien not properly geometric figures can be constructed simulating persons, animals and objects, for example:
Elephant
Bird in flight
Wreath

