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Evil · Puzzle #187
9
8
3
6
2
4
8
2
7
7
1
5
3
1
6
2
1
9
7
5
6
3
4
8
7
"Anyone who stops learning is old, whether at twenty or eighty." — Henry Ford
"Anyone who stops learning is old, whether at twenty or eighty." — Henry Ford
Always update pencil marks immediately after placing a digit — stale marks cause almost all solving errors.
Always update pencil marks immediately after placing a digit — stale marks cause almost all solving errors.