A particularly challenging game that requires the mind carries the promising name Mastermind. The game is about guessing a hidden color combination. This color combination consists of four fields, in which eight different colors are placed. You now have to find out what colors are behind what fields. For this, you can propose a solution with four colors. Simple place four colored balls in the first row of the field via the drag n drop feature and then simply click on OK. Whether or not your solution is correct then gets checked. Of course, it is unlikely that you have all the colors in the right places the first time around. But that is not bad but gives you information. Because Mastermind tells you how many of your colors are null and void as well as how many of your colors are already in the right place. That is signaled to you with white and black balls – white stands for the right color and black for the correct place. You cannot, however, recognize which of your colors is correct, otherwise it would be too easy. Now you must vary the color combinations. You have a total of ten trials. Try your best and see if you can bear the title of Mastermind.