time and causality, we need a point in time to check the offside rule - most likely
a goal - the king could be seen as kind of a goal
at least a 1d coord system to determine if a player is offside - check
a penalty zone - debatable
players in at least two teams - multiple
a ball, that is shot to a player behind the last line of enemy players - No.

No ball, no offside. Chess with a ball could be interesting, though. :)

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 1 day ago

what are you talking about it's always a ball when you're playing chess

[–] ripcord@lemmy.world 2 points 1 day ago (1 children)

That's the soccer definition not the chess offsides rule

[–] probable_possum@leminal.space 2 points 1 day ago

Oh yes. My bad.