From lichess's Fair Play page:
> In correspondence games only, you may use the Lichess opening explorer, plus any other chess books or opening databases.
I've been thinking about trying to get into correspondence chess, and wanted to understand this better. What kinds of databases can I use in Correspondence? For example, could I use a chessbase masters game database? Could I use ChessDB.cn? Could I use a database of pre-played Leela training games? Could I use game or opening databases with annotations?
It seems clear to me that I definitely can't use software that evaluates a position that was not previously evaluated, but other than that, just wanted to check on the above. Thanks!
> In correspondence games only, you may use the Lichess opening explorer, plus any other chess books or opening databases.
I've been thinking about trying to get into correspondence chess, and wanted to understand this better. What kinds of databases can I use in Correspondence? For example, could I use a chessbase masters game database? Could I use ChessDB.cn? Could I use a database of pre-played Leela training games? Could I use game or opening databases with annotations?
It seems clear to me that I definitely can't use software that evaluates a position that was not previously evaluated, but other than that, just wanted to check on the above. Thanks!