| 16 | 16 | [[2,4],[2,6],[2,7],[2,9],[2,11],[2,13],[2,15],[2,16],[2,17],[2,18],[2,19],[2,20]] | 
          
          
            | 17 | 17 | [[3,1],[3,2],[3,4],[3,5],[3,7],[3,8],[3,10],[3,12],[3,13],[3,19]] | 
          
        
        
          
            | 18 |   | [[4,2],[4,4],[4,6],[4,8],[4,13],[4,14],[4,17],[4,18],[4,20]] | 
          
          
            |   | 18 | [[4,2],[4,4],[4,6],[4,8],[4,13],[4,14],[4,16],[4,17],[4,18],[4,20]] | 
          
        
        
          
            | 20 |   | [[6,1],[6,2],[6,4]] | 
          
          
            | 21 |   | [[7,1],[7,2],[7,4],[7,8],[7,9],[7,11],[7,12],[7,15],[7,16],[7,18],[7,19]] | 
          
          
            | 22 |   | [[8,1],[8,2],[8,19],[8,20]] | 
          
          
            | 23 |   | [[9,1],[9,2],[9,9],[9,14],[9,19],[9,20]] | 
          
          
            | 24 |   | [[10,1],[10,2],[10,10],[10,11],[10,15],[10,16],[10,19]] | 
          
          
            |   | 20 | [[6,1],[6,2],[6,3],[6,4]] | 
          
          
            |   | 21 | [[7,1],[7,2],[7,3],[7,4],[7,8],[7,9],[7,11],[7,12],[7,15],[7,16],[7,18],[7,19]] | 
          
          
            |   | 22 | [[8,1],[8,2],[8,16],[8,19],[8,20]] | 
          
          
            |   | 23 | [[9,1],[9,2],[9,3],[9,9],[9,14],[9,16],[9,19],[9,20]] | 
          
          
            |   | 24 | [[10,1],[10,2],[10,3],[10,10],[10,11],[10,15],[10,16],[10,19]] | 
          
        
        
          
            | 26 |   | [[12,2],[12,10],[12,12]*,[12,14],[12,18]] | 
          
          
            | 27 |   | [[13,1],[13,2],[13,19]] | 
          
          
            | 28 |   | [[14,1],[14,2],[14,4],[14,11],[14,14],[14,19],[14,20]] | 
          
          
            |   | 26 | [[12,2],[12,3],[12,10],[12,12]*,[12,14],[12,18]] | 
          
          
            |   | 27 | [[13,1],[13,2],[13,3],[13,19]] | 
          
          
            |   | 28 | [[14,1],[14,2],[14,4],[14,11],[14,14],[14,18],[14,19],[14,20]] | 
          
        
        
          
            | 30 |   | [[16,4],[16,6],[16,7],[16,11],[16,19],[16,20]] | 
          
          
            | 31 |   | [[17,2],[17,3],[17,9],[17,12],[17,13],[17,19],[17,20]] | 
          
          
            |   | 30 | [[16,4],[16,6],[16,7],[16,11],[16,18],[16,19],[16,20]] | 
          
          
            |   | 31 | [[17,2],[17,3],[17,9],[17,12],[17,13],[17,15],[17,18],[17,19],[17,20]] | 
          
        
        
          
            | 32 | 32 | [[18,2],[18,5],[18,7],[18,9],[18,10],[18,11],[18,12],[18,13],[18,14],[18,15],[18,19],[18,20]] | 
          
          
            | 33 | 33 | [[19,1],[19,3]*,[19,5],[19,4],[19,9],[19,11],[19,12],[19,13],[19,14],[19,15],[19,17]] |