Is that Tressau's interpretation? And do we know how much info the original sourcs gives on the matter?
After all if the latter does specify, as this article does, that both pieces move four spaces each, the Kc/i–Rd/h interpretation would make sense both in terms of preserving usual castling and lining up with the frequent use of inclusive counting (see also paragraph 4 of the Comments in Cazaux' page on Grant Acedrex)
Is that Tressau's interpretation? And do we know how much info the original sourcs gives on the matter?
After all if the latter does specify, as this article does, that both pieces move four spaces each, the Kc/i–Rd/h interpretation would make sense both in terms of preserving usual castling and lining up with the frequent use of inclusive counting (see also paragraph 4 of the Comments in Cazaux' page on Grant Acedrex)