PlaySudoku.us
Expert · Puzzle #913
6
2
7
8
6
5
8
4
7
5
2
1
3
9
5
7
3
2
5
4
6
4
1
6
9
2
"The only way to learn mathematics is to do mathematics." — Paul Halmos
"The only way to learn mathematics is to do mathematics." — Paul Halmos
In 2005, Sudoku mania was so intense in the UK that it was credited with boosting pencil sales nationwide.
In 2005, Sudoku mania was so intense in the UK that it was credited with boosting pencil sales nationwide.