Lesson 5 - Advanced And Special Rules: Exercises
Even though exercises are not required, I recommend working on them. They will help you grasp and practice the things you learn from the lessons more efficiently. You can certainly go back and sneak in the previous pages... but try first to answer the questions without going back. By doing so, you will make your memory work a bit and it is a pretty good thing to keep the memory working if you want to become a good chess player.
Do the exercises and compare your answers with the solution provided using the Solution link.