Chess References, ECO Opening Codes, and More

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Chrono (16) Glossary Articles (8) Directories (13) Internet History (6) FAQs @ Variants (12)

Articles & Resources

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ECO at a Glance
The acronym ECO (Encyclopedia of Chess Openings) refers to two different but related concepts: 1) A five volume reference (A-E) published by Chess Informant; and 2) A system of chess opening classification using codes A00-E99.

Chess pieces in different languages
Translations for 'chess', the six chess pieces, and 'check' in 72 languages.

Wolfram.com
Mathematicians look at chess : number of possible games, etc.

Chesmayne by Raymond Reid
Chess-poster.com. 'The best and the most complete history of chess available on the Internet.'

World Clock : time zones
Find current local time in different cities and countries, all time zones. Useful for calculating when online games in major tournaments will start in your local time.

Free-definition.com
Encyclopedia style entries with hyperlinks to related topics.

Wikipedia : the free encyclopedia
Chess rules, concepts, and history. Maintained by volunteers from the general public.

Chess Dictionary
Over 700 terms explained; from Chess Odyssey.

Chess Encyclopedia by Maurizio Mascheroni
'Who, When and Where' plus lots of links.

ECO/Nomenclature Archive
Openings classified by ECO code. From Chess Archaeology.