PlaySudoku.us
Hard · Puzzle #529
3
2
8
7
6
2
1
6
7
4
5
3
7
9
4
8
1
9
7
2
5
4
1
2
8
5
Euler's "problème des 36 officiers" — an unsolvable 6×6 Latin square — is a direct mathematical precursor to Sudoku.
Euler's "problème des 36 officiers" — an unsolvable 6×6 Latin square — is a direct mathematical precursor to Sudoku.
"Tell me and I forget. Teach me and I remember. Involve me and I learn." — Benjamin Franklin
"Tell me and I forget. Teach me and I remember. Involve me and I learn." — Benjamin Franklin