PlaySudoku.us
Expert · Puzzle #370
3
6
2
8
1
9
8
2
5
8
4
9
6
5
1
3
6
1
5
7
9
2
3
4
7
Wayne Gould gave his puzzle software to The Times for free, triggering the global Sudoku craze. He made his money from books.
Wayne Gould gave his puzzle software to The Times for free, triggering the global Sudoku craze. He made his money from books.
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.