[mode80]

This is great. Suggest one additional bit to show black at the bottom. That way the player of black is not handicapped by playing from an upside down position.

Or just rip off the chess piece design of this other minimalist chess board simulator, which is never upside down:

https://mirrorchess.com/

(It's ok, I made it.)

[jmpavlec]

All pieces can move everywhere...? And no rules seem to be in effect. What's the purpose of this?