CUPS FLIP - Must click the Flag to start. Change the value of n if you wish then Click (Reset) to reset the whole puzzle. A move turns n-1 of the n cUps upside down, so Click the cUp you don't want to flip, to flip all the others. Your aim is to flip (turn upside down) all the cUps in the minimum number of moves (cUp clicks) and find the values of n where this is actually possible!
Created by @gregatku, for my own interest mainly. I found the problem on the Internet, but I won't reveal the source because that source tells you the solution, and if you know the solution the puzzle is no fun at all! cUp costumes borrowed from my Gobblet project with appropriate modifications.
