We invite you to the fun city Playground Differences, where only children live, and instead of streets and boring buildings playgrounds with various attractions are everywhere. Periodically, new sites are being built, but recently the townspeople began to notice that the same areas appeared. This was not liked by the small inhabitants of the game town. They ask you to compare pairs of identical pictures, if you find the differences, they will leave them. In total, you need to look at ten places and find a minimum of four differences. Time for searches is limited. The images are arranged in a mirror image.