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Hard · Puzzle #933
5
1
7
6
8
3
2
9
9
2
8
7
9
2
3
8
7
5
1
9
2
3
6
1
5
4
"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