anchor.diff:        </tr>
         <tr>
           <td>Weekday events</td>
  -        <td><%= @calculation.rules.weekday_events? %></td>
           <td>
             <% if @calculation.rules.weekday_events? %>
             Weekday events count
  
positive.code:       </tr>
        <tr>
          <td>Place by</td>
          <td><%= @calculation.rules.place_by %></td>
          <td>
            <% case @calculation.rules.place_by %>
            <% when "fewest_points" %>
  
negative.code:       </tr>
        <tr>
          <td>Team</td>
          <td>
            <% if @calculation.rules.team? %>
            Results are by team
  