Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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