Options

Option	Type	Description
position	string	Initial FEN (default: starting position).
orientation	'white' | 'black'	Board orientation.
draggable	boolean	Allow dragging pieces.
clickable	boolean	Allow square selection/clicks.
viewOnly	boolean	No drag or selection.
coordinates	boolean	Show file/rank labels.
animationDuration	number	Move animation ms.
pieceTheme	PieceTheme	Function (piece) => SVG string.
boardTheme	BoardTheme	{ lightSquare, darkSquare } colors.
onMove	(from, to) => boolean | void	Called on drop; return false to cancel.
onSelect	(square | null) => void	Called when selection changes.
onArrowDrawn	(from, to) => void	Called when user draws arrow (right-drag).