PlaySudoku.us
Easy · Puzzle #408
2
3
1
4
5
8
7
6
8
6
3
2
1
4
8
5
3
1
7
6
2
5
6
3
9
7
6
9
4
2
8
1
5
9
1
8
7
6
4
7
6
5
2
9
1
1
2
8
6
9
4
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.