Did You Know?

There are 6,670,903,752,021,072,936,960 valid completed Sudoku grids — that's 6.7 sextillion.

Did You Know?
✓ Completed! 👍
6
8
3
7
9
4
9
7
3
2
1
6
1
8
4
6
7
9
1
8
4
1
3
9
7
Pro Tip

Start fresh if you've been staring at the same cells too long. Distance creates clarity.

Pro Tip