*---*
  |   |
  |   |            2 matchings
  |   |
  *---*
  |   |
  |   |
  |   |
  *---*
  |   |
  |   |
  |   |
  *   *




      *---*
      |   |
      |   |
      |   |                3 matchings
  *---*   *---*
  |   |   |   |
  |   |   |   |
  |   |   |   |
  *   *---*   *
      |   |
      |   |
      |   |
      *---*
      |   |
      |   |
      |   |
      *---*
      |   |
      |   |
      |   |
      *   *




      *---*
      |   |
      |   |
      |   |
  *---*   *---*
  |   |   |   |
  |   |   |   |
  |   |   |   |
  *---*---*---*                   7 matchings
  |   |   |   |
  |   |   |   |
  |   |   |   |
  *---*   *---*
  |   |   |   |
  |   |   |   |
  |   |   |   |
  |   |   |   |
  *   *---*   *
      |   |
      |   |
      |   |
      *---*
      |   | 
      |   |
      |   |
      *---*
      |   |
      |   |
      |   |
      |   |
      *   *





          *---*
          |   |
          |   |
          |   |
      *---*---*---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
  *---*   *---*   *---*
  |   |   |   |   |   |   
  |   |   |   |   |   |   
  |   |   |   |   |   |   
  *   *---*   *---*   *
      |   |   |   |
      |   |   |   |
      |   |   |   |               23 matchings
      *---*---*---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
      *---*   *---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
      *   *---*   *
          |   |
          |   |
          |   |
          *---*
          |   |
          |   |
          |   |
          *---*
          |   |
          |   |
          |   |
          *   *





          *---*
          |   |   
          |   |    
          |   |    
      *---*   *---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
  *---*   *---*   *---*
  |   |   |   |   |   |
  |   |   |   |   |   |
  |   |   |   |   |   |
  *---*---*---*---*---*         59 matchings
  |   |   |   |   |   |
  |   |   |   |   |   |
  |   |   |   |   |   |
  *---*   *---*   *---*
  |   |   |   |   |   |
  |   |   |   |   |   |
  |   |   |   |   |   |
  *   *---*   *---*   *
      |   |   |   |
      |   |   |   |
      |   |   |   |
      *---*---*---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
      *---*   *---*
      |   |   |   |
      |   |   |   |
      |   |   |   |
      *   *---*   *
          |   |
          |   |
          |   |
          *---*
          |   |
          |   |
          |   |
          *---*
          |   |
          |   |
          |   |
          *   *