PlaySudoku.us
Easy · Puzzle #439
5
3
8
2
1
9
6
9
4
6
7
2
3
2
9
7
8
7
8
5
6
4
2
9
3
1
2
5
4
3
6
7
4
6
9
8
4
9
3
5
9
1
6
7
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.
"Associate yourself with people who are likely to improve you." — Seneca
"Associate yourself with people who are likely to improve you." — Seneca