PlaySudoku.us
Hard · Puzzle #78
5
2
7
3
9
1
4
5
2
1
5
8
4
5
2
9
8
4
6
5
5
4
2
8
3
7
6
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein