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Hard · Puzzle #177
1
4
7
8
6
2
9
5
1
8
1
3
7
3
5
6
4
9
8
3
6
9
8
1
6
7
7
4
"An investment in knowledge pays the best interest." — Benjamin Franklin
"An investment in knowledge pays the best interest." — Benjamin Franklin
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy