The History of Online Chess: From ICC to Chess.com

Online chess started in 1995, well before most of the internet did. The Internet Chess Club launched that year as a paid service that let players from anywhere in the world play real-time games against each other. Three decades later, the history of online chess spans five major platforms — ICC, FICS, Playchess, Chess.com, and Lichess — and a player base that grew from a few thousand subscribers to tens of millions of monthly active users. Here’s how it happened.

Before the web: ICS (1992)

The Internet Chess Server (ICS) was the original. It launched in January 1992, written by Michael Moore (no, not that one) and Richard Nash. ICS ran on university servers and was free. Users connected via telnet — there was no graphical interface, just text commands.

ICS introduced the model that every subsequent online chess service inherited: a central server matches players based on rating, runs the clock, records the game, and updates ratings. The chess engine logic ran server-side; clients were thin terminals. This architecture worked then and works now.

The community on ICS was small, technical, and chess-obsessed. By the mid-1990s, the server hosted thousands of games per day, and the rating list was a meaningful measure of online playing strength.

ICC (1995): the commercial split

In 1995, the operators of ICS split into two camps. One group, led by Daniel Sleator (the Carnegie Mellon professor who’d been maintaining the codebase), commercialized the service as the Internet Chess Club (ICC). ICC charged a yearly subscription and added features — graphical interface, lessons, broadcasts of top events, and titled-player play.

ICC quickly became the gathering place for serious online chess. Strong masters and grandmasters played there. Garry Kasparov and Anatoly Karpov both did simul events on ICC in the late 1990s. The platform’s commercial model attracted the audience willing to pay for stability and features.

FICS (1995): the free fork

The other camp from the ICS split kept the original spirit going. The Free Internet Chess Server (FICS) launched in 1995 as a no-cost alternative to ICC. The codebase was forked from ICS, and the server was run by volunteers.

FICS attracted players who didn’t want to pay or who preferred the original community. Its rating list and player base were smaller than ICC’s but not negligible. FICS is still online as of 2026, though its usage is a fraction of its peak.

The FICS/ICC split set a pattern that would repeat with Chess.com and Lichess two decades later — a free open community and a paid premium one, both serving distinct chess audiences.

Playchess (2000)

Playchess.com launched in 2000 as a project of ChessBase, the German chess software publisher behind Fritz and the eponymous database. Playchess was built into ChessBase’s desktop client and integrated tightly with the company’s engine and database tools.

The platform attracted serious analytical players — those using ChessBase software to study and review games. Playchess’s strength was its engine integration and its tight loop between live play and post-game analysis. Like ICC, it was paid, and it carved out a strong niche in the early 2000s.

Playchess never grew to mainstream-platform size, but it remained a respected venue for analytical chess players through the 2010s and into the 2020s.

Chess.com (2007)

Chess.com launched in 2007. Founded by Erik Allebest and Jay Severson, it was designed from day one as a web-based platform — no desktop client required, just a browser. This was the right bet. Browser performance had matured to the point that chess UIs could be smooth and feature-rich without a native installer.

Chess.com grew slowly through the late 2000s and accelerated through the 2010s. Key moments: the integration of engines and lessons (early 2010s), the launch of computer analysis tools, the addition of variant games (Chess960, 4-player chess, bughouse), and the partnership with major chess organizations for broadcast rights.

By 2020, Chess.com had become the largest commercial chess platform in the world. The boom triggered by The Queen’s Gambit (Netflix, October 2020) brought millions of new players to the platform, many of whom stayed. As of 2026, Chess.com reports more than 150 million registered accounts.

Lichess (2010)

Lichess launched in 2010, founded by Thibault Duplessis. The pitch was simple: free, ad-free, open-source chess for everyone. Lichess runs as a non-profit, supported by donations, with no premium tier and no advertising.

The open-source approach attracted developers, who contributed everything from analysis tools to studies (interactive lessons) to tournaments. The platform’s code is publicly hosted on GitHub, and anyone can audit how matches are run, how ratings work, and how anti-cheating measures are implemented.

Lichess grew steadily through the 2010s and then explosively from 2020 onward. As of 2026, Lichess and Chess.com are the two dominant chess platforms, with Lichess favored by many serious players and the strict-free crowd, and Chess.com favored by casual players and content consumers.

The 2020 boom

The biggest single event in online chess history is the 2020 surge. The Queen’s Gambit, released by Netflix in October 2020, became a global phenomenon and drove millions of viewers to try chess. Twitch and YouTube content from streamers like Hikaru Nakamura and Levy Rozman (GothamChess) channeled that interest into actual play.

Both Chess.com and Lichess saw user counts spike. Chess.com reported daily new accounts jumping by an order of magnitude. Lichess saw similar growth proportionally. By 2021, online chess was bigger than at any point in its history — and the trajectory has continued.

The engine arms race

One thread runs through online chess from 1995 to today: cheating with engines. Computer chess programs surpassed human grandmasters in the late 1990s, and by the 2000s, players were using engines online to gain unfair advantages. Every platform has invested heavily in anti-cheat detection.

The arms race is asymmetric — detection is hard, evasion is easier, and high-profile bans (with public counter-claims of false positives) happen regularly. Both Chess.com and Lichess maintain large anti-cheat teams. The detection methods combine statistical analysis of move choices, timing patterns, and engine-correlation testing.

The most famous recent flare-up was the Hans Niemann controversy in 2022, which centered on alleged engine use both online and in-person. The controversy was unresolved but pushed both major platforms to strengthen their detection systems publicly.

Mobile and async chess

Chess apps for iOS and Android matured through the 2010s. Both Chess.com and Lichess have full-featured mobile apps that mirror their web platforms. Async (correspondence-style) chess, where each player has days to make a move, became feasible at scale through these apps.

Async fits the rhythm of modern life. Many chess players today play primarily async games — a few moves at lunch, a few more before bed. The format has been around since postal chess, but apps made it convenient enough to scale.

Bullet and blitz dominance

Time controls have shifted dramatically online. In 1995, most online chess was played at five-minute or longer time controls. By 2026, the dominant time control is bullet (1 minute or less per side) and blitz (3-5 minutes per side). Streamers playing rapid bullet content drove this shift.

The rise of fast chess online has changed how the game is played. Opening theory matters less; pattern recognition and intuition matter more. Some traditional chess voices have criticized this; others have embraced it as a natural evolution.

Where we are in 2026

Chess.com and Lichess dominate. ICC and FICS are still online but as legacy platforms. Playchess remains a niche for ChessBase users. New platforms have emerged (Chess24, integrated into Chess.com after 2022) and faded.

The total online chess user base sits in the hundreds of millions of registered accounts across all platforms. Daily active users are in the low tens of millions. Online chess is one of the largest gaming categories on the internet, even though most chess players don’t think of it as a “video game.”

For broader context, the Internet Chess Server Wikipedia article covers the historical chronology and the major platforms. For new players looking for the starting blocks, see our how to win at chess beginner guide. For games in the broader strategy genre, our games like chess roundup has options.

Frequently asked questions

What was the first online chess platform?

The Internet Chess Server (ICS) launched in January 1992 as a free telnet-based service. It was the predecessor to both ICC (commercial, 1995) and FICS (free, 1995), which both emerged from a split in the ICS development team.

When did Chess.com launch?

Chess.com launched in 2007, founded by Erik Allebest and Jay Severson. It was designed as a web-first platform and grew through the 2010s to become the largest commercial chess site, with massive growth after 2020.

When did Lichess launch?

Lichess launched in 2010, founded by Thibault Duplessis. It’s a free, ad-free, open-source non-profit chess platform. It grew alongside Chess.com through the 2010s and saw rapid expansion during the 2020 chess boom.

What caused the 2020 online chess boom?

The release of Netflix’s The Queen’s Gambit in October 2020 drove millions of viewers to try chess. Combined with chess content on Twitch and YouTube from streamers like Hikaru Nakamura and Levy Rozman, the interest translated into massive growth on both Chess.com and Lichess.

Is online chess dominated by Chess.com or Lichess?

Both are dominant, with different audiences. Chess.com is the largest commercial platform with more total accounts and features. Lichess has a strong following among serious and free-software-oriented players. Both have tens of millions of active users.

The takeaway

Online chess started in 1992 as a text-based server experiment, split into commercial (ICC) and free (FICS) communities in 1995, gained competitors through the 2000s, and consolidated by the 2010s into the Chess.com and Lichess duopoly. The 2020 boom brought millions of new players, and online chess is now one of the largest gaming categories on the internet. For a one-button alternative to the 8×8 board, the Chrome Dino game swaps strategy for reflex.