Dmitriy Ivanovich Mendeleev (1834-1907) is best known for devising the Periodic Table of Chemical Elements.
He loved to play chess, among other games, and correspondence chess too. A beautiful but hard chess problem follows from him from July 4, 1889, white mates in two:
It's easy to find opponents here by pairing. Players can request pairing for one game, or that the server should search for opponents until she plays less than the given number of games.
This last one is the automatic pairing.
By default those players will be paired, who's ratings are closer than 100 elo points, and has never, or more than 90 days ago they played.
These parameters can be customizes, if, for example, somebody wants rather stronger or weaker players.
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