Oscar is here to check your chess skills in the newest Duolingo course since the app began offering math and music lessons. "Hola, ajedrez" means "Hello, chess" in Spanish. You've always been able to ...

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 ...

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 ...