It's so ironic but life can be, and usually is, like the game Unblock Me. For when you first look at the puzzle the solution isn't obvious. But maybe, with trial and error, you see a possible first move and perhaps a second. And sometimes the puzzle stymies your progress and you have to stop, set it aside, reset and start over.
But there are those other times without knowing how, you solve it in record time. And you think, how did I do that?