PlaySudoku.us
Easy · Puzzle #94
3
5
8
5
6
9
7
3
9
3
5
2
1
6
4
9
5
7
1
3
3
6
2
9
7
3
2
8
5
6
8
7
3
1
1
3
5
2
4
6
3
8
7
Sudoku is listed as a recommended mental exercise in several cognitive rehabilitation programs for TBI (traumatic brain injury) patients.
Sudoku is listed as a recommended mental exercise in several cognitive rehabilitation programs for TBI (traumatic brain injury) patients.
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.