PlaySudoku.us
Easy · Puzzle #359
4
3
6
7
2
8
2
1
3
7
3
7
8
1
6
9
4
5
2
3
7
1
3
4
2
7
8
4
9
1
3
8
5
3
4
2
1
9
7
5
7
5
4
9
"Every chess master was once a beginner." — Irving Chernev
"Every chess master was once a beginner." — Irving Chernev
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.