6. The invention according to claim 1 wherein: portions of said puzzle piece means are of a particular color to describe a particular color sequence along a horizontal direction so as to indicate proper assembly of said puzzle pieces in said horizontal direction.
6. The invention according to claim 1 wherein: portions of said puzzle piece means are of a particular color to describe a particular color sequence along a horizontal direction so as to indicate proper assembly of said puzzle pieces in said horizontal direction. 7. The invention according to claim 6 wherein: said color means along said horizontal direction is distributed along each horizontal row containing initial information and said horizontal row containing resultant information to describe a color in said resultant information row which corresponds to the color combination of the colors contained in said initial information rows.