PlaySudoku.us
Evil · Puzzle #691
5
7
3
4
3
1
5
8
4
7
6
2
6
8
9
4
3
8
4
9
6
5
2
1
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Triple
- Box-Line Reduction
- Forcing Chains
Solve five puzzles this week across all five difficulty levels. A complete player masters them all.
Solve five puzzles this week across all five difficulty levels. A complete player masters them all.
There are Sudoku variants with extra constraints: Killer Sudoku (cage sums), Diagonal Sudoku, and even 3D Sudoku.
There are Sudoku variants with extra constraints: Killer Sudoku (cage sums), Diagonal Sudoku, and even 3D Sudoku.