In this logic game, create a line or intersection containing at least 3 identical gems to remove these ones from the board. At each move new stones appear. The aim is to prevent the board to be filled.
To do this, click on the destination of the stone that appears under the mouse cursor.
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.