By clicking the "Flux" button, the game "changer fever" opens.
You can close this window with the red X at the top right in the corner. The context aid is obtained by clicking on the blue question mark.
With the tool configuration you can insert or hide the tools in the toolbar.
The goal of the game is to make the color sequence of the upper and lower row identical. By moving the stones (clicking on a stone next to the free field), you can change the image. As soon as it is possible to reconcile the colors of the upper and lower rows, a new color combination appears and you try to shift the stones in such a way that the upper and lower rows are identical. After seven games, a game is over. The goal is to end the game with as few moves as possible.