Just set up a physical board at home. The different looking kings, rooks, and queens here are guards, chancellors, and hawks. Anyone wants to play remotely?
How'd you set it up at home if its infinite?
Hahaha negative coords, no letters, that's fun.
Queens at the back remind me of Blind Box.
https://www.infinitechess.org/
lolol ur idea was already taken
https://www.chess.com/variants/custom