PlaySudoku.us
Hard · Puzzle #301
3
5
7
6
1
9
3
5
7
6
2
8
5
1
6
8
3
9
1
4
3
5
8
6
9
6
2
9
4
"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.