That does not explain why my solution does not work. I checked it again, and I'm fairly certain it is a good solution.RunningWithScissors » 18 Aug 2022, 5:02 am » wrote: ↑ Sorry, that is incorrect. I have already revealed that you start with 4x4, and then 3x3, and then 1x1.
The hard part is creating a control group, and moving marbles around to create new control groups as you go.