Did You Know?

Despite its Japanese name, Sudoku was invented by an American and popularized in Japan before going global.

Did You Know?
✓ Completed! 👍
6
5
2
3
1
2
1
9
4
6
5
4
7
3
2
6
3
1
9
5
2
9
7
4
8
5
1
6
4
1
6
3
8
7
6
9
4
6
8
2
1
7
3
2
5
Did You Know?

Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.

Did You Know?