PlaySudoku.us
Hard · Puzzle #955
9
7
8
3
6
9
8
9
7
4
5
9
2
8
7
4
6
3
2
8
4
4
1
8
2
7
8
9
6
1
"The book of nature is written in the language of mathematics." — Galileo Galilei
"The book of nature is written in the language of mathematics." — Galileo Galilei
Sudoku is a constraint satisfaction problem — the same class of problems used in scheduling, circuit design, and AI planning.
Sudoku is a constraint satisfaction problem — the same class of problems used in scheduling, circuit design, and AI planning.