Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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