Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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