#chess_game__chessgame__chess__ches  a game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king
  supertype:  #board_game__boardgame  a game played on a specially designed board
  subtype:  #shogi  (Japanese) a form of chess played on a board of 81 squares; each player has 20 pieces
  part:  #chess_move__chessmove  the act of moving a chess piece
  part:  #checkerboard  a board having 64 squares of two alternating colors
     part:  #square.artifact  any artifact having a shape similar to a plane geometric figure with four equal sides and four right angles; "a checkerboard has 64 squares"
     part:  #diagonal.line  an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"

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