difficulty level online chess
Your ranking won't be as precised as you start playing. The system is trying to give you challanges to overcome to see if you are able to beat 2200 rated player, if you would beat him it will give you the rank closer to person you have beaten. Therefore you should simple play games. After enough games the system will stop giving you challanges. You will gain +8/-8 and you will be kind of sure that you are playing against people that are on your ranking.