PlaySudoku.us
Easy · Puzzle #967
6
4
5
2
8
5
7
8
2
3
4
1
6
5
3
2
7
6
4
7
6
4
9
5
1
3
2
8
4
7
9
2
6
5
2
8
7
3
6
1
4
2
8
In combinatorics, the pattern formed by Sudoku clue cells is studied as a problem in 'hitting sets' and transversals.
In combinatorics, the pattern formed by Sudoku clue cells is studied as a problem in 'hitting sets' and transversals.
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.