PlaySudoku.us
Medium · Puzzle #653
3
8
7
7
5
1
6
2
9
5
3
8
4
8
6
8
5
7
9
2
7
3
2
1
4
7
8
5
9
2
5
7
9
4
6
1
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.
Start with Naked Singles — cells where only one digit can possibly go. They're the easiest wins.
Start with Naked Singles — cells where only one digit can possibly go. They're the easiest wins.