Defense: smart protection

This lesson teaches you another super smart way of protection. This is sometimes called an X-ray defense.
An X-ray can be used to look right through somebody. Doctors use it see if a bone is broken.
An X-ray defense is quite the same. You protect a piece by looking right through another piece!

Do you want to know how this works? The example shows it.

This manner of defending is not easy. If you master it, you have added a another great tool to your chess toolbox!

What do you have to do?
Protect your piece with an X-ray defense.