You get 5 minutes to identify as many country borders as you can from their satellite image. Upon clicking start, you will be given a pair of country names which share a border on top of the table of 25 images. Double-click on that border (which will be highlighted in red in the image) to choose it. If you guess correctly, it will add toward your total and that border will be removed and the borders will shift with a new one being added in the bottom right. If you guess incorrectly, you are penalized 5 seconds and the border you click on is still removed and the borders shift with a new one being added.’

You can mouseover the images to zoom in on them while playing.