PlaySudoku.us
Hard · Puzzle #28
2
5
8
6
1
2
8
4
7
1
2
5
6
9
4
9
3
8
8
5
6
5
4
8
9
8
2
5
Sudoku appeared as a puzzle category on Jeopardy! during the height of its US popularity in 2005–2006.
Sudoku appeared as a puzzle category on Jeopardy! during the height of its US popularity in 2005–2006.
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.