Sudoku — Medium
seniorbraingames.orgInstructions: Fill the grid so every row, column, and 3×3 box contains the numbers 1–9.
Level: medium
8
7
4
9
5
3
4
4
8
7
9
6
1
4
5
3
9
6
7
3
6
5
1
5
6
8
3
8
5
7
Answer Key
8
2
7
1
5
4
3
9
6
9
6
5
3
2
7
1
4
8
3
4
1
6
8
9
7
5
2
5
9
3
4
6
8
2
7
1
4
7
2
5
1
3
6
8
9
6
1
8
9
7
2
4
3
5
7
8
6
2
3
5
9
1
4
1
5
4
7
9
6
8
2
3
2
3
9
8
4
1
5
6
7