9
8
2
1
6
4
1
5
3
3
5
2
9
7
3
2
4
7
8
9
4
6
6
7
4
5
9
1
7
4
3
2
Attempt a Hard puzzle on paper — no undo button, no highlights. That's how the classics were meant to be played.
Attempt a Hard puzzle on paper — no undo button, no highlights. That's how the classics were meant to be played.
"Those who cannot remember the past are condemned to repeat it." — George Santayana
"Those who cannot remember the past are condemned to repeat it." — George Santayana