Players can use more email addresses in the club.
They can use one on the afternoon at home, and another one in work hours in the office.
We can add new email addresses to our profile or can delete any of them from it.
If our email address is changing, first we will add the new one, then delete the old one. Simple isn't it?
Available from Oct 14, 2002.
The following list contains the most important features of the club.
Click on any of them to find more about them.
If you are interested in all the details, please check the Details page also.
Link to E4EC
Yes, we'd appreciate it if you want to link to e4ec.org from your own website.
You can use this graphic and link if you want to create a graphical link...
An ELO rating is the result of statistical calculations designed to measure the playing strength of players. These methods were developed by Arpad Elo and are named after him. The ELO system is in almost universal use and has been further refined by others, notably Glicko, but is still named after its creator.
In devising the ELO scale, some premises were used that are worthy of note. It was decided that a rating of 2000 would be the equivalent to scoring 50% in a US Open Championship. It was also decided that a player's rating would never be negative.
Importantly, the standard deviation was fixed at 200 points. This means that if a player's true strength is 1500, he will score around 68% of his results within the range of 1400 to 1600 (as measured by performance formulae).
Another result of fixing the standard deviation at 200 points is that it also defines playing categories. For example, most International Masters and Grandmasters are in the 2400 - 2600 category, most national masters in the 2200 - 2400 category. Those in the 2000 - 2200 category are called Experts, or Candidate Masters.
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