anchor.diff:            sprints << {sprint_id => cards}
           end
           sprints = sprints.sort_by { |sprint| sprint.keys.first }
  +        max_sprints_length = [options.sprints + options.offset.to_i, sprints.length].min
  +
  +        pre_sprint_count = 0
  +        sprints.each do |sprint|
  +          pre_sprint_count += 1 if sprint.keys.first.first > 9999990
  +        end
  +
           if options.offset
             sprints = sprints.last(options.sprints + options.offset).first(options.sprints)
           else
  
positive.code: 
            unless sprint_end
              sprint_end = trello.sprint_card.due.to_date
              (sprints.length - 3).times do
                trello.sprint_length_in_weeks.times{sprint_end = sprint_end.previous(trello.sprint_end_day.to_sym)}
              end
            end
  
negative.code: <%
          sprint_begin = nil
          sprint_end = nil
  
          sprints.each do |sprint|
            sprint_id = sprint.keys.first
            while sprint_id.last == 0
  