FEN4 Parameter

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BenPaquet

I've been experimenting with the FEN4 parameters recently and I found one that looks like this which I haven't been able to figure out what it does: 'royal8x8': ('','','','') does anyone have any idea? (I've tried setting royal pieces on an 8 by 8 board, that only changed the royal parameter)

JkCheeseChess

doesn't do anything

BenPaquet

did it used to be used for something?

JkCheeseChess

no idea