Quadrille.chessKeys

The reverse of Quadrille.chessSymbols: a new Map from the drawn value back to its FEN letter, so a cell can be asked what piece it holds without knowing the skin. Rebuilt on every read, from the current map — a custom symbol appears here as soon as it is assigned.

Example

Note

Click the sketch to see the reverse map follow the forward one: 👸 appears where ♛ was, because the getter rebuilds from the current symbols. A cell drawn with a custom symbol is read back with Quadrille.chessKeys.get(value).