PlaySudoku.us
Hard · Puzzle #169
6
5
2
1
8
6
2
1
1
2
5
5
3
7
4
1
8
6
3
3
7
2
9
4
6
6
9
4
1
2
"The measure of intelligence is the ability to change." — Albert Einstein
"The measure of intelligence is the ability to change." — Albert Einstein
"The measure of intelligence is the ability to change." — Albert Einstein
"The measure of intelligence is the ability to change." — Albert Einstein