PlaySudoku.us
Hard · Puzzle #414
3
7
5
1
5
6
8
4
4
3
7
6
5
8
9
3
7
1
6
3
9
9
8
6
3
6
1
7
The maximum number of givens in a Sudoku that still leaves the rest logically deducible (no trivial completion) can exceed 77.
The maximum number of givens in a Sudoku that still leaves the rest logically deducible (no trivial completion) can exceed 77.
"Knowledge is power." — Francis Bacon
"Knowledge is power." — Francis Bacon