Did You Know?

The 4×4 mini-Sudoku (with digits 1–4) is used in elementary schools worldwide as an introduction to logic puzzles.

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

"I have not failed. I've just found 10,000 ways that won't work." — Thomas Edison

Food for Thought