PlaySudoku.us
Hard · Puzzle #860
8
3
1
6
6
9
4
7
8
5
2
6
3
4
2
8
7
2
5
9
2
6
7
6
1
8
2
"Try to be a rainbow in someone's cloud." — Maya Angelou
"Try to be a rainbow in someone's cloud." — Maya Angelou
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.