I now put an Interactive Diagram in the Grand Cavalier Chess article.
The piece values guessed by the Diagram were Cavalier = 239, Cannon = 275, Nightrider = 520, Queen = 1080. (This is not exactly reproducible, as the value guessing involves random sampling of positions). If I sneak in a Rook amongst the pieces, it gets a value very close to that of the Nightrider.
This seems to confirm the Xiangqi wisdom that a Cannon is slightly better than a Horse. (The Diagram uses a 25% filled board for determining piece values, and at that stage there would still be plenty of mounts.) And that each of those is only worth about half as much as a Rook.
Trading Cannon for Nightrider would then be equivalent to gaining a Cavalier.
I now put an Interactive Diagram in the Grand Cavalier Chess article.
The piece values guessed by the Diagram were Cavalier = 239, Cannon = 275, Nightrider = 520, Queen = 1080. (This is not exactly reproducible, as the value guessing involves random sampling of positions). If I sneak in a Rook amongst the pieces, it gets a value very close to that of the Nightrider.
This seems to confirm the Xiangqi wisdom that a Cannon is slightly better than a Horse. (The Diagram uses a 25% filled board for determining piece values, and at that stage there would still be plenty of mounts.) And that each of those is only worth about half as much as a Rook.
Trading Cannon for Nightrider would then be equivalent to gaining a Cavalier.