Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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