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Meaning of opening book | Babel Free

Noun CEFR B2

Definitions

A book describing chess openings or giving general opening advice.
literally
A database of openings given to a chess engine to play, either to improve the strength of the engine, to make the engine more interesting to play against, or to create a diversity of games in a chess engine tournament.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

opening ceremony opening credits opening goal Opening Government opening gun opening hours