A few weeks ago I managed to buy a copy of the album "Chess Pieces" which includes 12 tracks from the original double album. The back cover includes the following text under the heading "Authors Note" -
"The single album CHESS PIECES consists of selections from the RCA double album CHESS which was released worldwide in late 1984. CHESS is to be staged in London at the Prince Edward Theatre in Spring 1986 with productions on Broadway and elsewhere following. The original double album, still available, was produced by the authors Benny Andersson, Tim Rice and Bjorn Ulvaeus and has achieved gold and platinum all over the world. At the time of this note, the two most successful songs (included here) have been "One Night In Bangkok" by Murray Head and "I Know Him So Well" by Elaine Paige and Barbara Dickson."