PlaySudoku.us
Easy · Puzzle #494
2
4
9
1
7
3
8
1
5
7
4
2
6
7
3
4
7
6
3
4
5
4
3
8
5
6
7
2
6
3
4
1
4
5
7
1
7
5
8
4
8
9
1
4
7
Studies suggest regular puzzle solving may help maintain cognitive function and build cognitive reserve as we age.
Studies suggest regular puzzle solving may help maintain cognitive function and build cognitive reserve as we age.
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.