Historu of Lichess

The main function of the site is to play chess online or by correspondence against other players using various time control options[6][7]. The site is completely free and does not contain any advertising. All games played by registered users are saved on the server, providing statistical information and the ability to search among them. Games can be either those that do not affect the player’s rating, or rating games (selected by the user),
the latter are used to calculate the player's rating broken down according to time control (bullet, blitz, rapid, classical chess, unlimited time). The Stockfish[8] chess engine can be used to analyze all played games. In addition to games with real people,
users can also play against the computer (including from position).

Lichess provides ample opportunities to improve the tactical component of the game (solving chess problems in finding checkmate, finding the best move), improving mastery of chess notation and training knowledge of openings[9][10]. In addition to various options for time control in standard chess, the site also supports the following options[11][12]:

Chess-960 (Fischer Chess),
King in the center (King of the Hill),
Chess giveaways (Anti-chess),
Atomic chess,
Three check chess
Horde chess (Horde chess, from the word “horde”) is a variant of Dunsany’s chess. At the same time, the variant offered by Lichess differs from standard horde chess.

Lichess allows you to conduct simultaneous game sessions, play blind, watch the games of other players using the LichessTV function (using the interface of Lichess itself or on the video channels of those players who broadcast and comment on their game on twitch or youtube), there is a forum, a video library, a board editor . On the site forum you can create teams based on interests.

Lichess provides features to help people who are blind or visually impaired play chess[13]. To register on the site, instead of the standard captcha (CAPTCHA), you need to solve simple chess problems[14][15]. On February 11, 2015, the official mobile application for Android devices was released[11]. The iOS application was released on March 4, 2015[16].

A special feature of Lichess is its policy of complete freedom from advertising (the prefix li in the name - from the English libre (free), live (live, live), light (light) [17]), along with the constantly ongoing development and implementation of new functions on the website on a monthly, weekly and even daily basis. Covering costs is provided through voluntary donations and from the salary of the creator of Lichess (three of the existing five servers are paid from donations, the remaining two from the own funds of the creator Thibaut Duplessis).

Development and support of Lichess is a hobby of a developer (who has a well-paid main job in the IT field), who categorically does not intend to monetize the resource, and considers monthly out-of-pocket expenses (about $170) to be a completely acceptable payment for pleasure[18].

As of March 2018, lichess.org is one of the 2000 most popular sites (Alexa ranking). The largest number of visits over the years has come from the United States[19]. As of the same month, Lichess is the second most popular (after chess.com) chess website in the world[20].

Important: all this information is taken from Wikipedia, it’s not mine!!!Значок "Проверено сообществом"