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Some stories from the world of chess...
 
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Stories


Arpad Emrick Elo

ArpadElo The ELO system for rating chessplayers was named after its originator, Arpad Elo. Born in 1903, Elo emigrated to the USA when he was 10. Educated at Chicago University, he later became professor of physics at Marquette University, Milwaukee. He learned to play chess in his teens and played in a number of tournaments. He was champion or co-champion of Wisconsin 9 times between 1935 and 1961. He was active in the USCF (United States Chess Federation) from its founding in 1939. He spent 20 years developing and validating his chess rating system, which was adopted by FIDE in 1970 for international use.
His book 'The Rating of Chessplayers, Past and Present' was published in 1978 and is the definitive reference on the ELO rating system. Most chess organisations that perform ratings for players use the ELO system, or a variation of it.


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Time Controls

Players can use more different time controls in the club.
10/30 - This is the default time control. Club level tournaments and games by pairing use this one. Here 10 moves must be taken in 30 days. Clocks start with 30 days, the thinking time is always subtracted from them, but another 30 days are added at every 10th move. The maximum the clocks can show is 40 days.
10/40 - This is a bit slower time control. 10 moves must be taken in 40 days, the addition is 40 days, and the maximum is 50 days.
10/50 - More slower, 50 days for 10 moves, 50 days addition at every 10th move, the maximum is 65 days.
5+1 - This is a faster one. Here the clocks start with 5 days on them. The used up thinking time is subtracted also, and 1 day is added at each move. The maximum is 30 days here too.
The server manages the clocks, it calculates the thinking times, adds, subtracts, and does everything. Records everything in the game logs.
If a clock runs out of time, the player will be considered as being on an unannounced vacation. If it elapses also, he'll loose the game, the opponent can claim result.
 
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