PlaySudoku.us
Hard · Puzzle #437
6
4
2
8
7
5
4
9
6
4
7
1
9
2
4
1
5
9
2
6
5
8
4
3
8
1
9
4
"Patience is bitter, but its fruit is sweet." — Aristotle
"Patience is bitter, but its fruit is sweet." — Aristotle
"It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change." — Charles Darwin
"It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change." — Charles Darwin