Thank you so much for the constructive feedback. Going to take all of this on board. All equations should have been attainable - will double check my math.
I also think you misunderstood the powers - they needed to be activated by putting a matching dice IN the power slot (not activated by simply using that number in an equation). You are not the first to not twig this is what is required so still some UI work to do. I had hoped that since power slots and equation slots shared the same art that this would clue players in. Oh well.