Abstract: An electronic device is provided. The electronic device includes a display screen and a computing hardware which is operable to execute a software product, wherein executing the software product results in generating and rendering a graphical user interface on the display screen. When rendered, the graphical user interface presents four or more user-selectable graphical objects. Selecting and moving a first graphical object towards a second graphical object is configured to result in exchanging spatial positions of the first and second graphical objects. The exchange of the spatial positions is configured to trigger starting a timer and enabling, during a time set by the timer, selecting and moving at least a third graphical object towards a fourth graphical object. The moving the third graphical object towards the fourth graphical object is configured to result in exchanging spatial positions of the third and fourth graphical objects.