8
2
3
1
7
9
2
4
9
3
6
2
4
5
8
1
1
3
4
2
6
3
8
1
2
4
5
9
8
2
3
1
6
9
2
The hardest published Sudoku puzzle — graded by the number of search nodes a computer needs — was named 'Al Escargot' by its creator.
The hardest published Sudoku puzzle — graded by the number of search nodes a computer needs — was named 'Al Escargot' by its creator.
"An equation for me has no meaning unless it expresses a thought of God." — Srinivasa Ramanujan
"An equation for me has no meaning unless it expresses a thought of God." — Srinivasa Ramanujan