Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

4
9
1
4
3
6
2
8
      3
       
7      
5
3
7
9
8
2
1
4
6
8
2
6
1
      3
   5   
       
7
1  2  3
4  5  6
7  8  9
      3
   5   
       
9
8
5
4
3
3
9
6
1
2
3
7
9
2
1
5
8
1  2  3
4  5  6
7  8  9
4
2
6
1
7
4
8
5
9
3
1
4
5
      3
       
7      
6
      3
       
7      
9
2
8
6
9
8
4
2
1
7
5
3
3
7
2
9
8
5
6
1
4

 

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