How to Checkmate with Bishop and Knight

Not easy. Very hard to play, even harder to teach. Oh, how they tried! I’ve seen this in books, WTF? What is this? Hello? This isn’t helping! Anybody there? ... Hello? ...

On the other hand, you will never need this.

Or will you? What if ...

Jerry does the impossible. A simple, comprehensive and accurate study of the old problem. This is top notch stuff:

Now go and impress a girl.