Fun fact Chess was under constant revision for a long period after its creation. After though people started gate keeping it and preventing changes. So who knows, maybe a better storyline existed or should of existed?
A chess variant that provides a larger board (8x9) and adds another piece to the standard chess set: The Duke.
The Duke can move 1, 2 or 3 spaces in any direction but is unable to capture in any adjacent space but can capture in the subsequent 2 or 3 spaces beyond that. The Duke may also jump over pieces to bypass them.
The Duke starts at the King's side, opposite the Queen.
The king could take the queen though, unless there's something else going on we can't see.
There must have been a clergyman at 45 degrees over her shoulder watching through binoculars.
It looks like she's one sword length / space away.
If that was the case, the knight would be able to help.