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Internet Chess Club
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The Internet Chess Club (ICC) is a commercial Internet chess server devoted to the play and discussion of chess and chess variants. ICC had over 30,000 subscribing members in 2005.[1] It was the first Internet chess server and was the largest pay to play chess server in 2005.[2][3][4]
Key Information
History
[edit]The first Internet chess server (ICS), programmed by Michael Moore and Richard Nash, was launched on 15 January 1992.[5] Players logged in by telnet, and the board was displayed as ASCII text. Bugs in the server software allowed illegal moves, false checkmates etc. Over time more and more features were added to ICS, such as Elo ratings and a choice of graphical interfaces. The playing pool grew steadily, many of the server bugs were fixed, and players began to have higher expectations for stability.
Later on in 1992, Daniel Sleator (darooha) volunteered to take over as head programmer, and began a large overhaul of the server code. He addressed, among other issues, the frequent complaint that players would lose blitz games on time due to Internet lag. In 1994, he copyrighted the code, and began receiving purchase offers from companies wanting to commercialize the server. On 1 March 1995, Sleator announced his intentions to commercialize ICS, renaming it the Internet Chess Club, or ICC, and charging a yearly membership fee. The membership is free for players with a Grandmaster or International Master title.
Some programmers who had worked on the original ICS became unhappy with what they saw as the commoditization of their project. Led by Chris Petroff, they formed the Free Internet Chess Server (FICS), which to this day continues to allow everyone to access all features for free.[6]
On 29 May 2007, the World Chess Network was bought by the Internet Chess Club. It was then merged with Chess Live, another Internet chess server acquired by Internet Chess Club from GamesParlor. The result of the acquisition and merger was the formation of World Chess Live, a new Internet chess server that merged features of both services.[7] World Chess Live merged into, and become part of, the Internet Chess Club on 19 March 2012.[8] For some years, the Spanish on-line chess portal JaqueMate.org had technological support provided by ICC. The portal closed on 30 April 2013 with members transferred to ICC.[9]
Services available
[edit]ICC's core service is the facility to play chess games (and a number of chess variants) against other members and computers coupled with a rating system. ICC also offers many different types of tournaments. ICC recently partnered[when?] with the United States Chess Federation (USCF) to provide USCF rated online quick and blitz tournaments (these online ratings are separate from the USCF over-the-board quick and blitz rating systems apart from the initial seeding of the online quick and blitz ratings for unrated players). Members can also watch live broadcasts of tournaments with grandmaster commentary on Chess.FM, watch games involving titled players being played on ICC and challenge grandmasters in simultaneous exhibitions. The site also offers access to libraries of games, recorded lectures and private lessons (at additional cost).[10]
Criticism
[edit]The commercialisation of ICC was extensively criticised by users, particularly that Daniel Sleator was charging a subscription to use a system that had been developed by others. Following complaints by students, they were offered a 50% discount.[6]
The security of the system was criticised in December 2005 with claims that communications between ICC and users could easily be read and that the timestamping could be defeated.[1]
Internet Computer Chess Tournament
[edit]The Internet Computer Chess Tournament (CCT) was a chess tournament for computer chess programs held from 2000 to 2011. It was organised annually by the Internet Chess Club. The format was a Swiss system varying between 7 and 9 game rounds, with time controls (from CCT7 onwards) of 50 minutes and 3 second increments. The tournament was set to be completed in one weekend. [11]
| Edition | Year | Winner |
|---|---|---|
| 1 | 2000 | Crafty |
| 2 | 2000 | Shredder |
| 3 | 2001 | Fritz, Ferret |
| 4 | 2002 | Junior |
| 5 | 2003 | Ruffian |
| 6 | 2004 | Crafty |
| 7 | 2005 | Zappa |
| 8 | 2006 | Rybka |
| 9 | 2007 | Rybka |
| 10 | 2008 | Rybka, Naum |
| 11 | 2009 | Rybka |
| 12 | 2010 | Sjeng |
| 13 | 2011 | Sjeng |
See also
[edit]References
[edit]- ^ a b Black, J.; Cochran, M.; Gardner, M.R. (2005). "Lessons Learned: A Security Analysis of the Internet Chess Club". 21st Annual Computer Security Applications Conference (ACSAC'05). pp. 245–253. doi:10.1109/CSAC.2005.36. ISBN 0-7695-2461-3. S2CID 33101.
- ^ "The New Age of Internet Chess", Susan Polgar, ChessCafe.com, 1 February 2005.
- ^ "Meek or Masterly, A Challenger Awaits", Lisa Scheer, The New York Times, 26 July 2001.
- ^ "Children and chess: a guide for educators", Alexey W. Root and John D., p.110.
- ^ "Internet Chess Anniversary – History", Free Internet Chess Server, Retrieved 14 September 2009.
- ^ a b "Pawns Call King a Rook", Brad Stone, Retrieved 14 September 2009.
- ^ Joel M. Berez and Martin Grund (29 May 2007). "WCL – Press release". World Chess Live. Archived from the original on 10 August 2011. Retrieved 6 September 2011.
- ^ "Welcome to World Chess Live". World Chess Live. Archived from the original on 17 June 2012. Retrieved 2 July 2012.
- ^ "JaqueMate cierra. ICC te abre sus puertas". JaqueMate.org. 30 April 2013. Archived from the original on 30 September 2013. Retrieved 30 April 2013.
- ^ "Benefits of ICC Membership". Internet Chess Club. Retrieved 2 July 2012.
- ^ "ICGA - Computer Chess Tournaments Overview 1993-2004".
Further reading
[edit]- Burgess, Graham (2009), The Mammoth Book of Chess (3rd ed.), Running Press, p. 417, ISBN 978-0-7624-3726-9
External links
[edit]Internet Chess Club
View on Grokipediafrom Grokipedia
The Internet Chess Club (ICC) is a commercial online chess server that enables players worldwide to participate in real-time chess games, variants, and discussions via the internet.[1] Founded in 1995, it is widely regarded as the original home of online chess and the birthplace of fast-paced formats like bullet chess.[1]
ICC traces its roots to the Internet Chess Server (ICS), an academic project launched in 1992, which was subsequently moved to Carnegie Mellon University and provided the foundational technology for live online play.[2] In 1992, computer scientist Daniel Sleator took over as lead programmer and overhauled the ICS code. In 1994, he copyrighted it, leading to its commercialization as ICC the following year with a paid membership model charging $49 annually for full access.[1][2] Key features include Elo-based ratings for player matchmaking, graphical user interfaces, premove functionality to accelerate gameplay, and complimentary memberships for international titled players such as grandmasters and international masters.[2][3]
As a trailblazing platform, ICC quickly became the first global online chess community, attracting tens of thousands of users and influencing the development of subsequent servers like the Free Internet Chess Server (FICS).[1][2] It has hosted numerous tournaments, including cash-prize events, and maintains an extensive database of titled players' games used to generate educational puzzles.[4] In 2024, ICC underwent a significant relaunch at chessclub.com, introducing modern web-based interfaces, mobile apps, and enhanced content like videos and analysis tools to broaden accessibility and engagement for both novice and expert players.[1] Today, it continues to operate as a subscription service with free basic play, blending its historical legacy with contemporary online gaming innovations.[5][3]
The membership model evolved from a strict paywall introduced in 1995, when ICC transitioned from the free Internet Chess Server (ICS) and charged annual fees starting around $49, to a freemium hybrid post-2020 amid growing competition from ad-supported platforms. This shift made basic play accessible to all while monetizing premium educational and customization tools.[2][46]
History
Founding and Early Development
The Internet Chess Server (ICS) originated in early 1992 as a non-commercial, text-based platform for real-time online chess gameplay, initially developed by undergraduate students at Carnegie Mellon University (CMU).[6] In July 1992, Daniel Sleator, a professor of computer science at CMU, took over as chief programmer, overhauling the code to enhance stability and introducing innovations like move timestamping to compensate for network latency during games.[7] These improvements enabled synchronized real-time play between remote users via telnet connections, marking ICS as a pioneering system for internet-based chess. By January 1995, ICS had grown to approximately 10,000 registered accounts, supported by volunteer administrators and hosted on university servers before relocating to a dedicated machine in Pittsburgh at a cost of $300 per month, personally funded by Sleator.[6] Faced with escalating operational costs and offers from commercial interests, Sleator transitioned ICS to a paid model, announcing on March 1, 1995, its rebranding as the Internet Chess Club (ICC) under the newly formed Internet Chess Club, Inc.[8] The launch introduced an initial annual membership fee of $49, while retaining limited free access for guests and top-rated players, with the goal of funding server enhancements, grandmaster events, and reduced lag.[7] Key features from ICS, such as real-time gameplay and community discussion channels, were carried over at inception, positioning ICC as the first commercial global hub for online chess. The commercialization was driven by the need to sustain the platform beyond volunteer efforts, as Sleator had invested significant unpaid time and resources into its development.[6] The shift to a fee-based structure sparked backlash among users who favored a free model, leading to the rapid creation of the Free Internet Chess Server (FICS) on March 3, 1995, by developers including Henrik Gram from the University of Aarhus and Chris Petroff.[9] FICS adopted an open-source approach, hosting on volunteer-supported servers and emphasizing accessibility without charges, with its motto "We do it for the game, not the money" highlighting the ideological split from ICC's profit-oriented path.[9] Despite the competition, ICC experienced steady early growth through incentives like student discounts, and expanding to over 30,000 subscribing members worldwide by 2005, including numerous grandmasters and celebrities.[10]Growth, Mergers, and Challenges
In the mid-2000s, the Internet Chess Club expanded its user base through strategic acquisitions to enhance its offerings and consolidate the online chess landscape. In 2007, ICC acquired the World Chess Network and Chess Live, merging them to form World Chess Live (WCL), which integrated user bases from both platforms and combined features such as variant games and tournament scheduling to create a more robust service under ICC ownership.[11] By 2012, WCL was fully merged into ICC, consolidating advanced tools like real-time analysis and multi-language support to streamline operations and reduce redundancy.[12] This period also saw ICC deepen ties with the United States Chess Federation (USCF), building on an initial financial partnership established in 1997 that provided USCF with annual revenue of $25,000 plus membership commissions.[13] The collaboration evolved in the early 2000s to include support for online events, culminating in official USCF-rated quick and blitz tournaments on ICC starting around 2014, with weekly Swiss-system events in formats like 3-minute games with increments, open to USCF members for official rating adjustments.[14] These rated tournaments, such as 7-round events on Mondays and 5-round quick-rated sessions on Fridays, helped ICC attract competitive players seeking official recognition while boosting USCF's online presence. A notable expansion in 2013 involved the closure of the Spanish online chess portal JaqueMate.org on April 30, with its member base—primarily Spanish-speaking users—migrated directly to ICC to preserve continuity in gameplay and community features.[15] Despite these growth initiatives, ICC faced operational challenges, including server scalability strains from surging user numbers in the mid-2000s, which occasionally led to lag during peak hours despite upgrades to handle thousands of simultaneous games.[7] Additionally, rising competition from free platforms like the Free Internet Chess Server (FICS), established as a non-commercial alternative in 1995, and the launch of Chess.com in 2007 with its accessible free tiers, pressured ICC's subscription model by drawing casual players away from paid services.[16] In response, ICC emphasized premium features like grandmaster lectures and anti-cheating measures to differentiate itself and retain dedicated users.Revival and Recent Updates
The COVID-19 pandemic led to a significant surge in interest for online chess platforms in 2020, as lockdowns and social distancing measures drove millions of new players to digital gaming amid canceled over-the-board events.[17] This global boom in online chess participation, which saw platforms experience unprecedented user growth, prompted the Internet Chess Club (ICC) to host specialized tournaments to capitalize on the heightened engagement.[18] One notable example was the 1st Annual Susan E. Kantor Memorial Online Chess Tournament, organized by ICC on October 18, 2020, as a seven-round quick-rated event honoring a prominent chess organizer and drawing participants worldwide.[19] Additionally, ICC partnered with the Continental Chess Association to host the 48th Annual World Open online from August 7 to 9, 2020, adapting the traditional in-person event to a nine-round format with a G/60;d10 time control and a substantial prize fund.[20] Following a period of relative dormancy, ICC underwent a major revival in 2024, relaunched under the banner of renewed innovation to restore its position as a leading online chess hub.[1] The "Reborn in 2024" initiative featured a complete site redesign, emphasizing accessibility and community focus, while shifting exclusively to a modern web-based interface that rendered legacy client software, such as Blitzin and Dasher, obsolete.[1][21] This overhaul aimed to streamline user experience, eliminate compatibility issues with outdated downloads, and integrate contemporary features to attract both veteran players and newcomers in the post-pandemic era. To further enhance user retention and activity, ICC introduced improved daily and weekly missions on October 7, 2025, as an evolution of its engagement tools.[22] These missions offer structured challenges, such as puzzle-solving targets and gameplay achievements, designed to encourage consistent participation, skill development, and progression through stacking rewards, thereby fostering long-term community involvement.[22]Services and Features
Online Gameplay and Variants
The Internet Chess Club (ICC) primarily facilitates online play of standard chess, adhering to FIDE rules, while also supporting a range of chess variants known as "wild" games. These variants include Crazyhouse, where captured pieces are added to the capturing player's reserve and can be dropped onto any empty square on subsequent turns as if they were pawns promoting; Suicide Chess (also called Losers or Giveaway), in which the objective is to lose all one's pieces or allow checkmate, with captures being compulsory; and Atomic Chess, where capturing a piece causes an "explosion" that removes all non-pawn pieces in the adjacent 3x3 area, including the kings if unprotected, resulting in a win for the opponent if their king survives.[23][24] Among these, Crazyhouse has gained notable popularity on ICC for its dynamic drop mechanics that encourage aggressive play and quick tactical shifts, often attracting players seeking alternatives to classical chess.[24] Real-time gameplay on ICC encompasses various time controls to suit different paces, including bullet games with 1 minute per player, blitz matches typically lasting 3 to 5 minutes, and longer rapid or standard games extending up to 30 minutes or more, alongside correspondence chess where players have days to respond per move.[25] Players can engage in chat during games via integrated messaging, allowing real-time discussion or trash talk, while observer mode enables spectators to watch live matches without participating, fostering a communal viewing experience.[26] These features support seamless user interaction, with options for simultaneous games (simuls) and time odds, where one player receives a time advantage to balance skill disparities.[27] For post-game review, ICC maintains personal game libraries where users can access and replay their match histories, including notations and outcomes. Engine analysis is integrated directly into the platform, allowing players to load games into an analysis board powered by Stockfish for move evaluation, blunder detection, and suggested improvements immediately after play.[28] Since its inception, ICC has provided free premium access to titled players, including Grandmasters (GMs), International Masters (IMs), and FIDE Masters (FMs), to encourage elite participation. Verification involves signing up on the ICC website and emailing support with the player's FIDE ID and official title confirmation, granting unrestricted access to all features without subscription fees.[29]Tournaments and Events
The Internet Chess Club (ICC) has hosted USCF-rated online tournaments since October 2014, enabling players to earn official United States Chess Federation ratings through structured online competitions.[30] These events typically employ the Swiss system format to pair players of similar strength across multiple rounds, with prize structures varying by event size and sponsorship, often including cash awards for top finishers in open and class sections.[31] For example, scholastic championships and invitational series have featured guaranteed prize funds exceeding $3,000, distributed based on performance in rated games.[32] From 2000 to 2009, ICC organized the annual Internet Computer Chess Tournament (CCT), an online competition exclusively for chess engines running on standard hardware.[33] The event used a round-robin or Swiss format with time controls suited to automated play, attracting top programs like Fritz (co-winner CCT3, 2001) and Shredder (CCT2, 2000) in early editions. Crafty won CCT1 (2000) and CCT5 (2003), Zappa won CCT7 (2005), and Rybka dominated later years, securing victories in CCT8 (2006), CCT9 (2007), CCT10 (2008, co-winner), and CCT11 (2009). The series continued on the Free Internet Chess Server (FICS) for CCT12 (2010, Deep Sjeng) and CCT13 (2011, Deep Sjeng), concluding after 2011 due to shifting focus in computer chess toward general AI advancements and declining participation in dedicated engine events.[33] ICC continues to partner with major organizers for high-profile online events, such as the 48th World Open in August 2020, which was fully hosted on the platform with a G/60 +10 second increment time control and a guaranteed prize fund of $20,000, with additional non-cash prizes.[34] Recent blitz showdowns highlight ongoing competitive offerings, including the October 2025 match where Faustino Oro defeated Oleksandr Bortnyk 9.5-2.5 in a 12-game format (3+0 time control), followed by a November rematch of 12 games on November 10, 2025.[35] These events emphasize rapid play and draw international grandmasters, fostering community engagement. Tournament ratings on ICC primarily utilize the Glicko-2 system, which accounts for rating deviation to assess player reliability, with provisional ratings assigned to newcomers based on their initial 20-26 games for more volatile adjustments until stabilization.[36] In USCF-rated tournaments, participants receive dual ratings—ICC's internal Glicko-2 alongside official USCF Elo-based scores—to track performance across formal competitions.[37]Educational and Community Resources
The Internet Chess Club provides extensive educational resources through its Chess.FM platform, which offers a comprehensive library of video lessons and broadcasts featuring grandmaster instructors. These include structured series on tactics, endgames, pawn structures, and checkmate patterns, delivered by experts such as GM Miguel Illescas, GM Davorin Kuljasevic, and GM Alex Yermolinsky.[38] Users have access to an archive of these videos, with content spanning from mid-2024 to mid-2025, allowing asynchronous learning at no additional cost beyond membership.[38] Live commentary schedules for major events are also integrated, enabling real-time analysis during broadcasts to enhance viewer understanding of professional play.[38] Puzzle-solving features form a core part of ICC's learning tools, with daily challenges designed to sharpen tactical skills through unique positions requiring calculation and creativity. Introduced in 2025 as part of the platform's mission system, these puzzles tie into gamified challenges such as solving 25 puzzles in a day for the "Daily Solver" achievement or 100 in a week for "Weekly Puzzle Solver," encouraging consistent practice.[22] The Puzzle Quest mode further integrates motifs and crowns for progression, making it accessible for players of varying levels.[22] Community engagement is facilitated through news articles and social features that foster interaction among users. ICC's news section covers major chess events, such as the 2025 Wijk aan Zee tournament, with previews highlighting top contenders like Gukesh Dommaraju.[39] Articles also spotlight individual performances, including a June 2025 piece on Vasyl Ivanchuk's remarkable unbeaten streak and rating surge.[40] Social tools include friend lists for connecting with other players, enabling private chats and game invitations, with ongoing updates to enhance these features.[41] While dedicated forums are not hosted on the platform, community discussions occur via in-app channels and external integrations.[5] For beginners, ICC offers free tutorials on chess etiquette, basic strategy, and rules, integrated into its video library and accessible without premium membership. These resources emphasize sportsmanship, opening principles, and common pitfalls, helping new users navigate online play effectively.[38]Operations and Technology
Membership and Access Models
The Internet Chess Club (ICC) operates a hybrid membership model that provides free basic access to core gameplay features while offering paid premium subscriptions for enhanced functionality. This structure allows users to play chess online without cost, contrasting with the club's original pay-only approach established in 1995.[5][2] Free accounts enable 24/7 online chess gameplay, game analysis tools, access to personal game history, and viewing of live broadcasts from around the world. These accounts also include limited creation of custom chess boards and puzzles, supporting casual and introductory play without financial commitment. However, free users face restrictions on advanced content, such as full video libraries and unlimited customization options.[42] Paid premium memberships expand on free access with unlimited custom boards and puzzles, exclusive video lessons from grandmasters, news and articles, special deals, and features like Puzzle Quest, daily missions, and achievement tracking. These subscriptions are available in monthly and yearly options, priced at $9.95 per month or $69.95 per year as of 2024, with no announced changes.[42][43] ICC provides complimentary premium access to titled players, including Grandmasters (GMs), International Masters (IMs), and FIDE Masters (FMs), upon verification of their credentials via support. This policy, in place since the club's early commercialization, encourages participation from elite competitors without subscription fees.[2][44] New users can register for a one-month free trial of premium features to evaluate the full platform before committing to a paid plan. This trial requires account creation and is designed to facilitate onboarding.[45]| Feature | Free Access | Premium Access |
|---|---|---|
| 24/7 Gameplay | Yes | Yes |
| Game Analysis | Yes | Yes |
| Game History | Yes | Yes |
| Live Games | Yes | Yes |
| Custom Boards/Puzzles | Limited | Unlimited |
| Grandmaster Videos | No | Yes |
| News/Articles | No | Yes |
| Exclusive Deals | No | Yes |
| Puzzle Quest/Missions | No | Yes |
| Achievements | No | Yes |