Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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