{{Short description|Volunteer-run Internet chess server}}
{{Use dmy dates|date=DecemberJanuary 20242025}}
{{Infobox website
|name=Free Internet Chess Server (FICS)
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=== Relay ===
FICS relays major live chess events. A bot takes the moves in ongoing games and relays them to special demo accounts bearing the names of players in the event. Users watch and comment on the games in progress. The relay has covered several [[World Chess Championship|World Chess Championships]] as well as [[Tata Steel Chess Tournament|Wijk aan Zee]], [[Morelia-Linares]] and [[Amber Melody]].<ref name="Hurst-1999" /><ref>{{Cite web |title=Free Internet Chess Server Relays |url=https://www.freechess.org/Events/Relay/index.html |access-date=2025-01-16 January 2025 |website=Free Internet Chess Server}}</ref> The web-based [[Lichess]] platform obtains its tournament relays via FICS.
=== Archive ===
All games played by registered users are recorded and made publicly available for free. The FICS game archive has been used in [[chess opening]] studies,<ref>{{Cite web |last=Kennedy |first=Rick |date=20 December 2015-12-20 |title=The Jerome Gambit: Lots of Practice, Some Theory |url=https://jeromegambit.blogspot.com/2015/12/lots-of-practice-some-theory.html |access-date=2025-01-16 January 2025 |website=The Jerome Gambit}}</ref> academic studies on memory,<ref>{{Cite journal |last1=Nagy |first1=David G. |last2=Török |first2=Balázs |last3=Orbán |first3=Gergő |date=15 October 2020 |title=Optimal forgetting: Semantic compression of episodic memories |journal=PLOS Computational Biology |language=en |volume=16 |issue=10 |pages=e1008367 |doi=10.1371/journal.pcbi.1008367 |doi-access=free |issn=1553-7358 |pmc=7591090 |pmid=33057380|bibcode=2020PLSCB..16E8367N }}</ref> decision-making,<ref>{{Cite journal |last1=Slezak |first1=Diego Fernandez |last2=Sigman |first2=Mariano |last3=Cecchi |first3=Guillermo A. |date=2 March 2018 |title=An entropic barriers diffusion theory of decision-making in multiple alternative tasks |journal=PLOS Computational Biology |language=en |volume=14 |issue=3 |pages=e1005961 |doi=10.1371/journal.pcbi.1005961 |doi-access=free |issn=1553-7358 |pmc=5851639 |pmid=29499036|bibcode=2018PLSCB..14E5961F }}</ref><ref name="Fernández Slezak-2010" /> and user interface design.<ref>{{Cite book |last1=Picussa |first1=Juliano |last2=Garcia |first2=Laura S. |last3=Bueno |first3=Juliana |last4=Ferreira |first4=Marica V. R. |last5=Direne |first5=Alexandre I. |last6=de Bona |first6=Luis C. E. |last7=Silva |first7=Fabiano |last8=Castilho |first8=Marcos A. |last9=Sunye |first9=Marcos S. |chapter=A user-interface environment solution for an online educational Chess server |date=June 2008 |title=2008 Second International Conference on Research Challenges in Information Science |chapter-url=http://dx.doi.org/10.1109/rcis.2008.4632106 |publisher=IEEE |pages=179–186 |doi=10.1109/rcis.2008.4632106|isbn=978-1-4244-1677-6 }}</ref> The server and its archive have been used to train [[Chess engine|chess engines]] and chess-related [[machine learning]] projects,<ref>{{Cite journal |last1=Cheng |first1=Isaac |last2= |date=2023 |title=Machine Learning to Study Patterns in Chess Games [thesis] |url=https://doi.org/10.13140/RG.2.2.30894.52807 |journal=[[University of Exeter]] |language=en |doi=10.13140/RG.2.2.30894.52807}}</ref> while the FICS code has been used to launch similar regional or thematic chess servers as well as influencing the design of other chess projects.<ref name="Bouman-2012">{{Cite web |last=Bouman |first=Egbert |date=2012 |title=Tribler-G: A Decentralized Social Network for Playing Chess [Master's Thesis] |url=https://egbertbouman.github.io/tribler-g/publications/Tribler-G%20A%20Decentralized%20Social%20Network%20for%20Playing%20Chess%20Online%20(MSc%20thesis).pdf |website=Delft University of Technology}}</ref>
