If you could create a new chess piece or rule

OmegaChess Advanced features an interesting piece called The Fool It also features queen castling and additional options for the knight.

Originally posted by WanderingKing
Add a single piece for each player that can waste a move. When a player thinks they're in zugzwang, they can say they moved that piece. Once they lost the piece, they can't do it anymore.

Or give this possibility to, say, the queen's bishop.

For the piece that can only make the zero move, I think additional squares would have to be added, like e0 and e9. The pawn promotions on the e file would have to be clarified then. Or perhaps i4 and i5. Or you could boldly place them on e4 and e5. That would drastically change the opening theory since 1.e4 would be unavailable. And I imagine the correct way to play that would turn out to be one where the two pieces fall early.

I would create a rule that a pawn may captured if it advances two squares on its first move avoiding a potential capture from an already advanced enemy pawn..

Originally posted by cheshirecatstevens
I would create a rule that a pawn may captured if it advances two squares on its first move avoiding a potential capture from an already advanced enemy pawn..