Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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