Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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