Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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