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
        149    
4    3        8
  1  69  7    
1  72  3      
  5            3
  4          6  
  8            6
3      71      
            39  
            31  
    8            
        719    
    2    51    
          8    9
5      1    24
41  5          
  7  8  9  4  
                5