PlaySudoku.us
Hard · Puzzle #471
2
6
8
6
1
2
5
4
3
8
4
9
3
1
4
9
6
5
9
4
6
2
1
3
6
7
8
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.