PlaySudoku.us
Evil · Puzzle #385
3
9
5
3
1
8
4
2
2
5
7
9
1
6
4
6
2
5
3
5
4
6
1
7
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.
"To ask the right question is harder than to answer it." — Georg Cantor
"To ask the right question is harder than to answer it." — Georg Cantor