Some chess lessons don’t come from books or engines—they come from losses that linger. This particular lesson only became clear after repeating the same mistake across multiple games. For experienced ...

In Dan Starbuck Pelletier’s program, the only kings and pawns in the room move on a black-and-white checkerboard. The playing field that exists outside the room is leveled to make way for the world’s ...

This blog post originally appeared in the New America Foundation’s Weekly Wonk. I was panicked: I had been stuck at sevens for two weeks and the rest of the class knew it. Each week, all of us third ...