Math Insight

The minimum number of clues (17) needed for a unique Sudoku was proved by exhaustive computer search in 2012.

Math Insight

The minimum number of clues (17) needed for a unique Sudoku was proved by exhaustive computer search in 2012.

1 4 3 7 9 8 9 2 1 6 4 1 7 5 2 8 2 9 7 4 5 3 8 2 4 9 8 3 9 2 4 5

PlaySudoku.us

Medium · Puzzle #326

✓ Completed! 👍

4

9

3

7

9

2

1

8

6

4

5

2

9

1

7

4

5

7

2

8

3

8

9

2

4

9

8

3

4

5

00:00

Food for Thought

"We shape our buildings; thereafter they shape us." — Winston Churchill

Food for Thought

"We shape our buildings; thereafter they shape us." — Winston Churchill