1
8
5
2
7
8
7
9
3
1
6
1
7
4
3
1
5
2
4
8
3
2
6
1
7
2
6
3
1
2
5
8
1
3
6
4
Newspaper Sudoku puzzles are graded by stars — one star for easy, five stars for fiendish — though standards vary by publication.
Newspaper Sudoku puzzles are graded by stars — one star for easy, five stars for fiendish — though standards vary by publication.
"Chess demands total concentration." — Bobby Fischer
"Chess demands total concentration." — Bobby Fischer