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Evil · Puzzle #551
7
9
5
6
8
7
9
2
4
2
4
8
1
4
2
5
1
2
5
3
2
9
3
4
5
1
The longest Sudoku solving session in a competitive setting lasted over 8 hours — an endurance format.
The longest Sudoku solving session in a competitive setting lasted over 8 hours — an endurance format.
"The more you know, the more you know you don't know." — Aristotle
"The more you know, the more you know you don't know." — Aristotle