Same rule as basic chess with one extra rule, pieces can't move back except under certain exceptions:
1) If moving back is the only option for the king to avoid checkmate.
2) Pieces can only move back if it results in the capture of an opponent's piece.
3) Pieces can only move back to deliver a check.
If we have this rule in mind, we can even play it in a regular chess setting (like standard chess in lichess). Any volunteers to try this out.
1) If moving back is the only option for the king to avoid checkmate.
2) Pieces can only move back if it results in the capture of an opponent's piece.
3) Pieces can only move back to deliver a check.
If we have this rule in mind, we can even play it in a regular chess setting (like standard chess in lichess). Any volunteers to try this out.