ECO opening naming

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Chess Informant Inc developed the Encyclopaedia of Chess Openings which is a system of classification for chess openings into 5 main groups of openings, each of these groups has a 100 different categories of openings.

HIARCS Chess Explorer can classify openings into their ECO codes and further more name the actual openings. You can also access openings by name to practice those openings and also the Player Explorer can classify favourite openings of players and databases.

For reference here is an overview of the ECO codes and opening names: