DOUBLE SUDOKU

In each part write one digit into each blank square so that every horizontal row, every vertical column, and every 3×3 block contains the digits 1 to 9 exactly once each. Each square in Part A must contain a different digit from the corresponding square in Part B.


Part A Part B
69        1  3
    8  3  4    
  2      6    9
      3    5  6
      8    7    
  5      1      
      278      
5            4  
  62  9        
          8  91
  8    2      7
6      7        
8    7          
      4    16  
2  6            
  5  19        
7        53    
            8  4