4
6
1
7
8
1
3
6
1
5
3
6
1
2
4
6
8
9
1
4
2
6
7
1
8
5
2
4
6
3
3
2
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.
"Education is not the filling of a pail, but the lighting of a fire." — W. B. Yeats
"Education is not the filling of a pail, but the lighting of a fire." — W. B. Yeats