PlaySudoku.us
Hard · Puzzle #84
8
7
1
6
3
5
7
4
8
8
9
5
3
2
6
4
9
7
3
8
5
4
9
2
1
8
8
9
Retired people who solve puzzles daily have been shown in multiple studies to score higher on memory tests than non-puzzlers of the same age.
Retired people who solve puzzles daily have been shown in multiple studies to score higher on memory tests than non-puzzlers of the same age.
"If I have seen further, it is by standing on the shoulders of giants." — Isaac Newton
"If I have seen further, it is by standing on the shoulders of giants." — Isaac Newton