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Expert · Puzzle #618
9
6
8
1
5
7
9
1
6
4
7
3
8
6
4
2
3
2
5
3
8
5
8
3
1
Newspaper Sudoku puzzles are graded by stars — one star for easy, five stars for fiendish — though standards vary by publication.
Newspaper Sudoku puzzles are graded by stars — one star for easy, five stars for fiendish — though standards vary by publication.
"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