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Expert · Puzzle #683
3
9
9
7
5
8
2
7
5
4
4
8
1
5
9
6
4
6
5
3
1
8
2
6
7
1
"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