A GOOGLE search of Newsgroup: rec.arts.drwho produced an Oct. 23 1995 post,
which confirms Fergus Duniho's list of pieces. Here is a quote for the
Black army:
KING = the Master
QUEEN = the Rani
BISHOP = Draconian and Cyberman
KNIGHT = Sea Devil and Ice Warrior
ROOK = Sontarons
PAWNS = the Daleks