Mouse click on each of two identical flags, if a straight line connecting these two images are not more than three, and do not bump into other pictures, the two pictures can be eliminated, until the total elimination of the final picture. There are time limits.The "remind" button can be prompted to eliminate two pictures (limited number). The "bomb" button , you can blow up two identical pictures, score minus 10 points (limited number), there "refresh" button, you can re-layout of the remaining picture (limited number).If feel tired. You can pause a break. Of nine levels, from easy to difficult.