I'm in the "main brain" puzzles and you are supposed to press the buttons on the middle keyboard in the correct order A-D based on what is missing from the surround keyboards. I tried that repeatedly and it didn't work, at this point days later I've tried every possible number combination and it still isn't working?!?! So, even if I were stupid, and couldn't figure out the correct order to use the numbers in the missing numbers are 1,3,5 &6 so what am I missing?
