PlaySudoku.us
Easy · Puzzle #326
6
3
5
7
2
8
2
9
7
3
8
6
8
2
3
7
7
9
3
5
8
6
3
8
9
7
4
9
2
3
8
1
3
6
9
5
7
4
2
6
5
3
9
1
5
8
4
3
6
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.