Why does the game annotation font contain strange symbols?
It should look like this:

If the game notation doesn't look like the image above, try using MS Internet Explorer. If that does not work, the easiest way to acquire the figurine font is to download and install the free software
Chessbase Light.
What's the point of replaying chess games, with a special focus on combinations?
The advice of the strongest players to someone who wants to improve is almost unanimous: study tactics. Our System of Chess Calisthenics is based on the premise that the easiest way to study tactics is to replay combinations.
Our Chess Calisthenics system gives you the opportunity to familiarize yourself with tactical themes that tend to repeat. This is a new system of training. You will not have access to this type of exercise anywhere else. At your disposal is a tool to facilitate your chess development.
The chess board appears appears to big and I can barely see the notations in the game windows. What do I do?
To view our annotated games online, we recommend, at a minimum, a 17 inch, high resolution monitor. To enlarge the screen area, use the F11 key.