PlaySudoku.us
Expert · Puzzle #324
8
4
9
8
1
7
9
4
4
8
3
9
7
8
2
2
1
5
7
5
9
6
3
7
If pointing pairs aren't visible, try box-line reduction. They're inverses — if one fails, try the other.
If pointing pairs aren't visible, try box-line reduction. They're inverses — if one fails, try the other.
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein