A jammed Sudoku puzzle has one possible move (without using elimination techniques). See how fast you can do these 7.
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First article - SP Notation
   Cantaloupe 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |       
 |       
 |       
 |      9  |      5  |       
 |       
 |       
 |       
 |      
     2  |       
 |       
 |       
 |      3  |      6  |       
 |       
 |       
 |       
 |      
     3  |       
 |       
 |      3  |       
 |      1  |       
 |       
 |       
 |      4  |      
     4  |      6  |      9  |      8  |       
 |      3  |      5  |       
 |       
 |       
 |      
     5  |       
 |       
 |       
 |      6  |       
 |      9  |      8  |      5  |       
 |      
     6  |       
 |       
 |       
 |      1  |      8  |      7  |      3  |      6  |      9  |      
     7  |       
 |       
 |       
 |      8  |       
 |      3  |       
 |       
 |       
 |      
     8  |       
 |       
 |       
 |       
 |       
 |      6  |       
 |      9  |      5  |      
     9  |       
 |       
 |      7  |      5  |       
 |      1  |       
 |       
 |       
 |      
 
  |     
  
 
     000950000  |      
     000360000  |      
     003010004  |      
     698035000  |      
     000609850  |      
     000187369  |      
     000803000  |      
     000006095  |      
     007501000  |      
  |   
    
 Mangosteen 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |      6  |       
  |       
  |       
  |       
  |       
  |       
  |       
  |      1  |      
     2  |      1  |       
 |       
 |      3  |      6  |       
  |       
 |       
 |       
  |      
     3  |       
  |       
 |       
 |      8  |      1  |       
  |       
 |       
 |       
  |      
     4  |       
  |       
  |      5  |       
  |       
  |       
  |      1  |       
  |       
  |      
     5  |       
  |       
 |       
 |       
  |      7  |      1  |      8  |       
 |       
  |      
     6  |      2  |      1  |      8  |       
  |      5  |      9  |       
  |       
  |       
  |      
     7  |       
  |      2  |      7  |      5  |       
 |      6  |       
 |      1  |      9  |      
     8  |       
  |      6  |      1  |       
  |       
 |       
  |       
 |       
 |       
  |      
     9  |       
  |       
  |       
  |      1  |       
  |      4  |      7  |      6  |      2  |      
  
  
  |     
 
     600000001  |      
     100360000  |      
     000810000  |      
     005000100  |      
     000071800  |      
     218059000  |      
     027506019  |      
     061000000  |      
     000104762  |      
  
  
  |   
    
 Pomegranate 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |       
  |       
  |      3  |       
  |      4  |      2  |       
  |       
  |       
  |      
     2  |       
  |       
 |      4  |       
  |       
 |      9  |      6  |       
 |      3  |      
     3  |      1  |       
 |       
 |       
  |       
 |      3  |      4  |       
 |       
  |      
     4  |      4  |      3  |       
  |       
  |       
  |       
  |       
  |       
  |       
  |      
     5  |       
  |       
 |      8  |      4  |       
 |       
  |      3  |       
 |       
  |      
     6  |       
  |       
  |       
  |      9  |      3  |       
  |      7  |      4  |       
  |      
     7  |       
  |       
 |       
 |       
  |      9  |       
  |       
 |      3  |      4  |      
     8  |       
  |      4  |      1  |      3  |       
 |       
  |       
 |       
 |       
  |      
     9  |      3  |      6  |      7  |      5  |       
  |      4  |       
  |       
  |       
  |      
  
  
  |     
  
 
     003042000  |      
     004009603  |      
     100003400  |      
     430000000  |      
     008400300  |      
     000930740  |      
     000090034  |      
     041300000  |      
     367504000  |      
  |   
    
 Peach 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |       
  |       
  |      3  |      1  |       
  |      2  |       
  |       
  |       
  |      
     2  |       
  |       
 |      1  |       
  |       
 |       
  |       
 |       
 |       
  |      
     3  |      2  |       
 |       
 |      7  |      5  |       
  |       
 |      1  |      3  |      
     4  |      1  |      3  |      4  |       
  |       
  |       
  |      2  |      9  |      6  |      
     5  |       
  |       
 |       
 |       
  |       
 |       
  |      3  |       
 |      1  |      
     6  |      7  |      2  |      6  |      9  |      1  |      3  |       
  |       
  |       
  |      
     7  |       
  |      1  |       
 |       
  |       
 |       
  |       
 |       
 |      5  |      
     8  |      8  |       
 |       
 |       
  |       
 |      1  |       
 |       
 |       
  |      
     9  |       
  |       
  |      2  |       
  |       
  |      6  |      1  |       
  |       
  |      
  
  
  |     
  
 
     003102000  |      
     001000000  |      
     200750013  |      
     134000296  |      
     000000301  |      
     726913000  |      
     010000005  |      
     800001000  |      
     002006100  |      
  |   
    
 Tangerine 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |      8  |       
  |       
  |      6  |       
  |       
  |       
  |      5  |      3  |      
     2  |      6  |       
 |       
 |       
  |       
 |       
  |       
 |      9  |      8  |      
     3  |       
  |       
 |      7  |       
  |      4  |      8  |       
 |       
 |      6  |      
     4  |      9  |      8  |       
  |      5  |      6  |       
  |       
  |       
  |       
  |      
     5  |      7  |       
 |       
 |      8  |       
 |       
  |      6  |       
 |       
  |      
     6  |      1  |      6  |       
  |       
  |       
  |       
  |      8  |       
  |       
  |      
     7  |       
  |      7  |      8  |       
  |       
 |      6  |       
 |       
 |       
  |      
     8  |       
  |       
 |      6  |       
  |       
 |       
  |       
 |      8  |       
  |      
     9  |       
  |       
  |       
  |      3  |      8  |       
  |       
  |      6  |      1  |      
  
  
  |     
  
 
     800600053  |      
     600000098  |      
     007048006  |      
     980560000  |      
     700800600  |      
     160000800  |      
     078006000  |      
     006000080  |      
     000380061  |      
  |   
    
 Lychee 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |      8  |      6  |       
  |      5  |       
  |       
  |       
  |       
  |       
  |      
     2  |      1  |      7  |       
 |       
  |       
 |       
  |      6  |       
 |       
  |      
     3  |      5  |      3  |       
 |      1  |       
 |       
  |       
 |       
 |       
  |      
     4  |       
  |       
  |      1  |       
  |       
  |      7  |       
  |       
  |       
  |      
     5  |       
  |       
 |      3  |      8  |      1  |       
  |       
 |       
 |      9  |      
     6  |       
  |       
  |      6  |       
  |       
  |       
  |      1  |       
  |       
  |      
     7  |      9  |      1  |      5  |       
  |       
 |       
  |      4  |      8  |      3  |      
     8  |       
  |      2  |      8  |       
  |      5  |      4  |       
 |       
 |       
  |      
     9  |       
  |       
  |      7  |       
  |      8  |      1  |       
  |       
  |       
  |      
  
  
  |     
 
      
  
 860500000  |      
     170000600  |      
     530100000  |      
     001007000  |      
     003810009  |      
     006000100  |      
     915000483  |      
     028054000  |      
     007081000  |      
  
  
  |   
    
 Apricot 
      
 |      A  |      B  |      C  |      D  |      E  |      F  |      G  |      H  |      I  |      
     1  |      1  |       
  |       
  |      7  |      6  |       
  |       
  |       
  |       
  |      
     2  |      8  |       
 |       
 |       
  |       
 |       
  |      6  |      1  |       
  |      
     3  |      9  |      6  |       
 |      3  |      1  |       
  |       
 |       
 |       
  |      
     4  |      3  |       
  |      8  |       
  |       
  |       
  |       
  |      6  |      1  |      
     5  |      6  |       
 |      5  |       
  |       
 |       
  |       
 |       
 |       
  |      
     6  |      4  |       
  |      9  |       
  |       
  |      6  |      8  |       
  |       
  |      
     7  |       
  |       
 |      1  |      6  |      9  |       
  |       
 |       
 |      7  |      
     8  |       
  |      8  |      4  |       
  |       
 |       
  |       
 |       
 |      6  |      
     9  |       
  |      9  |      6  |       
  |       
  |      5  |       
  |       
  |       
  |      
  
  
  |     
  
 
     100760000  |      
     800000610  |      
     960310000  |      
     308000061  |      
     605000000  |      
     409006800  |      
     001690007  |      
     084000006  |      
     096005000  |      
  |   
 
 
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