Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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