This seems like a really cool idea from the late Problemist
As far as admin is concerned, I assume it desirable to have a link to this as Kazan Chess (the original name), and to credit Grolman as the inventor? Since it looks like you've done a bit of filling in the details, it's at your discretion whether you wish to take coïnvention credit.
Since it originates as a problem theme, two further questions arise:
How does it actually play as a game? I imagine it's very different in flavour from Orthochess but I wonder whether it might tend to be a bit chaotic.
Would it be worth including a problem or two on this page? I don't know if there would be copyright issues with including the original 1995 Problemist composition, but your Mate in 2 is pleasantly illustrative
I imagine there are more interesting ways to resolve the Castling issue than simply disallowing it outright (other pieces either have to fill both vacated squares where possible, or just the king's one as Castling seems to be a K move by problem convention (see the discussion of Half‐Neutral pieces in the same Problemist issue), and we could consider a K or R unmoved if it has only moved involuntarily), but this solution works too
This seems like a really cool idea from the late Problemist
As far as admin is concerned, I assume it desirable to have a link to this as Kazan Chess (the original name), and to credit Grolman as the inventor? Since it looks like you've done a bit of filling in the details, it's at your discretion whether you wish to take coïnvention credit.
Since it originates as a problem theme, two further questions arise:
I imagine there are more interesting ways to resolve the Castling issue than simply disallowing it outright (other pieces either have to fill both vacated squares where possible, or just the king's one as Castling seems to be a
Kmove by problem convention (see the discussion of Half‐Neutral pieces in the same Problemist issue), and we could consider aKorRunmoved if it has only moved involuntarily), but this solution works too