Rankings, tournaments

How does the rating system work?

What does ≈ mean in front of the rating?

Rating calculator

How can I enter tournaments?

Game play

How can I disable ads?

Can I change the default graphics?

How to switch to full screen?

How can I save my games?

What is "PGN export"?

What is Chess Informant?

Pawn got promoted in the penultimate row. Why is this?


Can I purchase a gift subscription?

What are the benefits of subscribing?


How can I report abuse?


The game does not start after logging in!

System requirements