PlaySudoku.us
Hard · Puzzle #81
4
9
5
3
6
7
1
8
9
7
2
9
5
3
5
4
6
7
1
8
2
1
7
8
8
6
4
Sudoku can be expressed as an integer linear program — a branch of optimization mathematics used in logistics and finance.
Sudoku can be expressed as an integer linear program — a branch of optimization mathematics used in logistics and finance.
Sudoku can be expressed as an integer linear program — a branch of optimization mathematics used in logistics and finance.
Sudoku can be expressed as an integer linear program — a branch of optimization mathematics used in logistics and finance.