駒 and 札: Board Pieces and Name or Handling Labels
Compare a moved white piece and old pieces on a Japanese chessboard with labels on a door and a box. Read 札 as ふだ and track each object's location and displayed content.
A moved piece and old pieces on a board
駒 (こま) means a game piece. 「盤の中央へ白い駒を進めた。」 — “I moved the white piece to the center of the board.” The white piece was moved to the board's center. This sentence does not identify the game or the specific type of piece.
「祖父の将棋盤には古い駒が並んでいる。」 — “Old pieces sit on my grandfather's Japanese chessboard.” Old pieces sit on the grandfather's Japanese chessboard. This example identifies that board, without linking its pieces to the white piece in the other sentence.
Signs on a door and a box
札 (ふだ) means a tag or sign here. 「部屋の扉に名前を書いた札を掛けた。」 — “I hung a name tag on the door to the room.” The name tag was hung on the room's door. Both the content and its location matter.
「箱には取扱注意の札が付いていた。」 — “A handle-with-care label was attached to the box.” The box had a handling label attached. The reading for these signs is ふだ; do not replace these objects with banknotes or the reading さつ.
The locations and functions of the objects
The 駒 examples refer to a board's center and a Japanese chessboard. The 札 examples refer to a room door and a box. The pieces and the signs showing a name or handling notice serve different roles in their sentences.
The signs are not described as game cards or score sheets. Read the stated objects and labels without adding game arrangements to the piece's move or production and delivery procedures to the box's label.
Are the 札 bearing a name and a handling notice banknotes read さつ?
Show the answer and why
No. The reading here is ふだ, and the objects are signs or labels. Keep them separate from banknotes or game cards, and do not infer a specific game from the sentence about the white 駒.