Tessera description

Tesserae is logic game. Simple yet colorful symbol graphics make for endless hours of gameplay... Gameplay consisted of "flapping" tessera, or tiles, from squares over adjacent squares. The result would either create a complex tile, or cancel out, resulting in the deletion of a tile. The goal was to clear the board entirely. Higher levels were designated by added tile complexity, and larger board grid sizes.
The game can be played either on one mosaic or as a tournament in which the object is to solve all nine boards with the lowest overall score.
Good luck and enjoy this game!