Purble Place is a suite of computer games, developed by Oberon Games and included in Windows Vista and Windows 7 that offers an environment for children to practice pattern recognition, represented by the schoolhouse at the left of Purble Place. The object is to clear the tableau in the fewest number of turns. A sneak peek bonus allows the player to expose all remaining cards for a couple of seconds, but every card exposed in this way is counted as a turn. As the skill level progresses, the game becomes timed, the grid size increases, and more similar pictures are used. The Beginner level has one 5x5 grid, Intermediate has two 6x6 grids, and Advanced has four 8x8 grids to solve per game. In addition to a joker that automatically finds another match of an exposed card, numerous special pairs are present in the higher levels: such as a card of the icing machine in Comfy Cakes that shuffles the board when paired, a clock that adds more time to the timer, and a Master Chef that automatical