I have to admit that this is also what keeps me coming back to LinkedIn. My brain is dangerously easy to motivate by dangling a virtual leaderboard in front of it.

But there’s so many good games out there. Check out Zachtronics/Coincidence.games for some cool examples. Walk to a bookstore and get one of their many sudoku/puzzle books. Check out the App Store for some puzzle games. Write your own puzzle game!