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Hard · Puzzle #523
4
1
5
7
9
6
5
4
6
2
4
8
7
1
4
4
8
2
3
1
9
2
7
1
6
2
7
5
4
"It's the possibility of having a dream come true that makes life interesting." — Paulo Coelho
"It's the possibility of having a dream come true that makes life interesting." — Paulo Coelho
"Taking it altogether I find it is the most beautiful and important discovery of Nature that ever has been made since the world's creation." — Newton, about calculus
"Taking it altogether I find it is the most beautiful and important discovery of Nature that ever has been made since the world's creation." — Newton, about calculus