This is a Dashboard Widget for Mac OS X, a clone of Ishido which was released in 1989.
Ishido is a puzzle board game comprising of a set of 72 stones and a game board of 96 squares.
Every stone has two attributes: a color and a symbol. There are six colors and six symbols in each stone set, thus creating 36 unique stones. Since each stone comes in a pair, there are therefore 72 stones in each stone set.
