PlaySudoku.us
Evil · Puzzle #740
2
4
8
9
3
6
1
3
6
4
7
9
6
8
3
3
2
7
6
4
2
7
3
5
1
In 2013, researchers proved computationally that every valid 16-clue Sudoku puzzle has a non-unique solution — 17 is truly the minimum.
In 2013, researchers proved computationally that every valid 16-clue Sudoku puzzle has a non-unique solution — 17 is truly the minimum.
In competitive Sudoku, top solvers can complete an expert-level puzzle in under 3 minutes.
In competitive Sudoku, top solvers can complete an expert-level puzzle in under 3 minutes.