Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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