PlaySudoku.us
Expert · Puzzle #221
7
8
4
9
6
6
2
3
2
1
9
4
7
4
8
1
5
7
8
4
6
8
9
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
SAT solvers — used in chip design verification — can crack any Sudoku puzzle in milliseconds.
SAT solvers — used in chip design verification — can crack any Sudoku puzzle in milliseconds.