White may not capture black immediately after black capture, as this would produce the same whole board position as before black move. So white must play somewhere else. After this white may capture from A.
White may not capture black immediately after blacks capture, as this would produce the same whole board starting positionposition as before black move. So white must play somewhere else. After this white may capture from A.
scapture, as this would produce the same whole boardstarting positionposition as before black move. So white must play somewhere else. After this white may capture from A.