Math Insight

Donald Knuth's "Algorithm X" with dancing links solves exact cover problems — of which Sudoku is a special case.

Math Insight

Donald Knuth's "Algorithm X" with dancing links solves exact cover problems — of which Sudoku is a special case.

PlaySudoku.us
Medium · Puzzle #705
✓ Completed! 👍
4
6
5
8
2
5
3
5
4
4
2
6
9
8
3
8
6
9
1
5
9
1
8
3
5
1
9
8
3
7
2
1
8
00:00
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Food for Thought

"The mind is not a vessel to be filled, but a fire to be kindled." — Plutarch

Food for Thought

"The mind is not a vessel to be filled, but a fire to be kindled." — Plutarch