A score may be associated with 5 possible indicators. The general goal of the indicator is to let people to be informed about their opponents. Some can safely ignore the indicators, though some may find them useful in making informed decision according to their taste.

N (new): indicates that the score is not stablized yet. The player is new, and the score has not been stablized. The indicator is temporary and is removed once the number of games reaches 20.

U (unreliable): indicates that the score may not tell the true strength. The person may chat via IM, or using a word processors, or web surfing for an extended period of time while playing, or doing some other tasks concurrently. You may have an easier time to beat a multi-tasking opponent, but you may also have to wait a longer time for the person to make moves. In rare cases, you may have a hard time beating an opponent armed with chess analyzing softwares. This indicator is temporary and is removed once the person is no longer distracted for some time.

S (senior): indicates that the person has played many games (1000+ games) and the score is stable. This is a permanent indicator.

M (master) and GM (grandmaster): indicate that the player is good. These are honorary indicators, as they do not provide additional information about the score. When a score is 2000+ it is labeled as M, and when it is more than 2250, it is labeled as GM.

May I know how should I check oppenent's indicator?
Thanks

Hi Kimshen,

When you play with your opponent, you will see your opponent's indicator by look at his/her nick.

Have fun!!!!