PlaySudoku.us
Easy · Puzzle #704
8
9
5
7
3
7
9
8
1
2
6
1
3
2
7
8
2
8
6
5
4
7
3
9
3
5
8
7
4
4
6
7
1
9
2
8
5
5
4
6
7
4
1
3
2
2
1
8
7
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.