PlaySudoku.us
Medium · Puzzle #274
7
8
1
5
3
8
5
1
9
5
3
6
8
7
2
6
3
2
5
7
1
5
8
6
4
9
2
4
1
7
1
6
8
2
7
9
When a row, column, and box all intersect, the intersection cell is the most constrained — always check it first.
When a row, column, and box all intersect, the intersection cell is the most constrained — always check it first.
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.