PlaySudoku.us
Medium · Puzzle #505
3
6
4
1
7
8
2
4
7
1
1
6
8
4
3
4
3
2
7
2
6
8
3
4
5
2
8
4
8
4
3
5
3
8
Set a personal best time today. Write it down. Tomorrow, try to beat it by one second.
Set a personal best time today. Write it down. Tomorrow, try to beat it by one second.
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.