Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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