A method and device for controlling a user interface displaying a game board, comprising, via at least one processor, displaying a game board arrangement having a plurality of game objects each having one or more characteristics, information on said game board arrangement and the game objects being stored in memory, determining an initial selection of a first game object based on user input and the stored information, determining a subsequent input selection of a second game object based on user input and the stored information determining the validity of the subsequent selection as being valid defined by said first and second game objects based on a first direction of the sequence with respect to the game board arrangement, the length of the sequence and if the first and second game object have at least one same characteristic, updating said game board arrangement information.