PlaySudoku.us
Easy · Puzzle #131
3
2
1
5
8
1
7
8
3
2
8
5
4
9
2
7
6
4
7
5
8
7
1
6
9
7
1
6
4
3
5
2
8
5
7
2
9
1
1
9
5
7
4
6
6
3
7
2
8
5
"Look deep into nature, and then you will understand everything better." — Albert Einstein
"Look deep into nature, and then you will understand everything better." — Albert Einstein
The first Sudoku software app appeared in 2005 and became one of the most-downloaded mobile apps of that year.
The first Sudoku software app appeared in 2005 and became one of the most-downloaded mobile apps of that year.