Problems are a great means to hang around while enjoyable and training your mind. There are several sorts of problems, and one of the most preferred among them is the so-called 'difference game '. This is a sort of problem in which players need to locate a particular number of differences between two otherwise similar photos. Such problems can be offered either in the kind of paper books or magazines, or in the kind of on-line games or mobile applications. The idea of this game is to identify tiny details in two similar photos and mark them on one of them. The faster and a lot more properly the player locates all the differences, the better the opportunity of winning.