PlaySudoku.us
Hard · Puzzle #405
2
7
4
6
3
5
9
4
2
4
1
7
9
8
6
7
1
5
7
3
7
4
6
7
4
8
"Eureka!" — Archimedes (upon discovering the principle of water displacement)
"Eureka!" — Archimedes (upon discovering the principle of water displacement)
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein