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#' ECO
#'
#' A dataset containing 2014 ECO (Encyclopedia of Chess Openings) openings
#' \itemize{
#' \item ECO
#' \item Opening
#' \item Variation
#' \item Movetext: Standard algebraic notation
#' \item NMoves
#' \item LAN: Movetext converted into long algebraic notation
#' }
#'
#' @docType data
#' @keywords datasets
#' @name eco
#' @usage data(eco)
#' @format A data frame with ECO openings
"eco"
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