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The object of the game is to end in a configuration where the faces of one color are a connected group, and this must be true for each color.[more]
You can either slide a face all the way toward another face in the same column or row, or you can jump over an orthogonally adjacent face, landing on an empty position.[less]
Contributed by: Karl Scherer (May 2016)
Open content licensed under CC BY-NC-SA
In the default variant, the board shows 12 faces in four colors, with three of same color. You can either slide a face all the way toward another face in the same column or row, or you can jump over an orthogonally adjacent face, landing on an empty position.
You cannot slide a face toward a wall or toward the border.
Beginners You must end up in a configuration where the faces of one color are a connected group, and this must be true for each color.
The faces that have neighbors of the same color will smile. If there are three faces or fewer per color, then making all faces smile will win the game.
Experts Try to win with the least number of moves. The move counter on the border shows how many moves you have made.
"moves" Displays the number of clicks you needed to arrive at the current setup.
"target" Displays the minimum number of clicks needed to arrive at the current setup.
"save" Click to save the current setup.
"restore" Click to restore the saved setup.
"check win" Once you are convinced that each color is a connected group, click the "check win" toggle on the left border. The system will reply with a win or lose message.
Random variant 23 Every time you select challenge 23, a new setup will be displayed.
History This game was published in 2008 as the Zillions game "Groops" by the same author.
Wolfram Demonstrations Project
Published: May 3 2016