PlaySudoku.us
Easy · Puzzle #182
8
2
9
5
4
4
5
1
8
9
2
6
5
6
9
1
2
4
9
1
3
4
5
6
7
4
7
1
6
2
5
9
9
3
2
8
5
7
1
8
5
3
7
5
4
3
1
8
Graph coloring and Sudoku are equivalent problems. Each cell is a node; edges connect cells that share a house. Solving Sudoku = coloring the graph with 9 colors.
Graph coloring and Sudoku are equivalent problems. Each cell is a node; edges connect cells that share a house. Solving Sudoku = coloring the graph with 9 colors.
Graph coloring and Sudoku are equivalent problems. Each cell is a node; edges connect cells that share a house. Solving Sudoku = coloring the graph with 9 colors.
Graph coloring and Sudoku are equivalent problems. Each cell is a node; edges connect cells that share a house. Solving Sudoku = coloring the graph with 9 colors.