PlaySudoku.us
Expert · Puzzle #642
6
2
8
5
7
6
7
1
2
2
7
5
1
4
3
6
9
7
6
2
9
5
4
6
3
The 4×4 mini-Sudoku (with digits 1–4) is used in elementary schools worldwide as an introduction to logic puzzles.
The 4×4 mini-Sudoku (with digits 1–4) is used in elementary schools worldwide as an introduction to logic puzzles.
"I have not failed. I've just found 10,000 ways that won't work." — Thomas Edison
"I have not failed. I've just found 10,000 ways that won't work." — Thomas Edison