PlaySudoku.us
Easy · Puzzle #83
2
5
3
4
6
2
1
9
8
6
8
4
1
1
8
3
2
3
5
4
9
2
7
8
5
7
9
1
4
9
8
5
2
8
9
7
1
3
6
7
6
5
3
9
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.