Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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