PlaySudoku.us
Easy · Puzzle #827
5
2
1
7
8
8
5
2
6
1
3
1
6
7
2
5
3
6
7
6
3
4
5
1
5
6
7
2
8
4
5
1
7
8
6
8
9
5
1
7
1
4
6
5
9
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.
"Chess demands total concentration." — Bobby Fischer
"Chess demands total concentration." — Bobby Fischer