PlaySudoku.us
Medium · Puzzle #650
4
5
2
8
1
7
3
4
3
7
1
7
6
4
5
7
4
8
2
9
1
5
3
1
4
8
3
6
7
2
1
8
9
"Count what is countable, measure what is measurable, and what is not measurable, make measurable." — Galileo Galilei
"Count what is countable, measure what is measurable, and what is not measurable, make measurable." — Galileo Galilei
For hard puzzles, do a full pencil-mark pass before making any moves. Incomplete marks are worse than no marks.
For hard puzzles, do a full pencil-mark pass before making any moves. Incomplete marks are worse than no marks.