PlaySudoku.us
Easy · Puzzle #326
6
3
5
7
2
8
2
9
7
3
8
6
8
2
3
7
7
9
3
5
8
6
3
8
9
7
4
9
2
3
8
1
3
6
9
5
7
4
2
6
5
3
9
1
5
8
4
3
6
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.
The Swordfish technique extends X-Wing to three rows and three columns — rare but decisive on expert grids.
The Swordfish technique extends X-Wing to three rows and three columns — rare but decisive on expert grids.