Do you think your logic is good enough? How about checking that playing an interesting and absorbing puzzle game? Your goal here is to make sure all the balls end up in the glass. However, to do that, you must remove the obstacles that prevent them from falling there first. For that purpose, you need to cut the board located between the balls and the glass in the right place. Don’t be in a hurry, give it a good thought! Perhaps the solution isn’t as obvious as it seems at first glance!