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Opening Encyclopaedia 2023
(dbree.org)
This is a group which aggregates, posts, and comments on chess-related resources.
Muchas Gracias por el material. Solo una pregunta, en 3 archivos pone 2022, ¿son necesarios para la OE 2023?
The 3 2022 files are for the older version and are not needed for the 2023 file.