So, this was another nice variant of your number puzzle games. However this one doesn't seem to check the solutions properly. I believe that this was due to you finding one answer and neglecting that there are actually several. However, that doesn't take much away from the core of the game, as it's more about figuring it out. People that need satisfaction from a button to tell them they're right, are missing the point. While you should've accounted for the multiple answers (potentially by having the check add the numbers together instead of having a set board that equals correct) I don't think the game is much much worse for it.