Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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