Prof. Marbles – Solo puzzle boardgame Day and night, Prof Marbles is standing in his laboratory, experimenting on the theory of everything. With a steady hand and a sharp mind, the scientist carefully transfers balls from one test tube to another. Don't rush it – what matters in the end is the right combination! Contents: 7 test tubes, 15 balls, 1 counter disk, 1 pad with 60 challenges Rules: EN / DE / FR / NL / IT / ES Age: 7 till 99 Players: 1 Playing time: 10 minutes Publisher: HUCH! Prof. Marbles provides players with 60 challenges in 4 different levels of difficulty. Each challenge card shows the set-up and tht require outcome of the lab experiment: Thich test tubes do you have to use for this challenge? How many colored balls do you need? And in what order are the balls sitting in the test tubes? By cleverly transferring the balls from one tube to another, you can rearrange the order of the balls. The objective is to arrive at the stipulated color combination with as few ball transfers as possible. The challenges become increasingly difficult, and experimenting with the balls and tubes gets more and more demanding.