Question

4. Constraint Satisfaction Problem Consider the problem of solving a 2x2 Sudoku puzzle. It is played on a grid consisting of 4 × 4 cells subdivided into four 2 × 2 squares as shown in the figure below. Some of the cells are empty, some of them are filled with digits from 1 through 4. The aim is to fill in the empty cells such that every row, every column, and every 2 × 2 square contains the digits 1, 2, 3, 4. Well- formed Sudoku puzzles do not require any guessing of cell assignments for solving them. 3 4 2 3 3 2 1 3 a) Formulate the general problem of solving 2 × 2 Sudoku as a constraint satisfaction problem. Describe the structure of the constraint graph associated with the constraint satisfaction problem. b) Describe the backtracking algorithm with forward checking to solve constraint satisfaction problems.

          4. Constraint Satisfaction Problem
Consider the problem of solving a 2x2 Sudoku puzzle. It is played on a grid consisting of 4 × 4
cells subdivided into four 2 × 2 squares as shown in the figure below. Some of the cells are
empty, some of them are filled with digits from 1 through 4. The aim is to fill in the empty cells
such that every row, every column, and every 2 × 2 square contains the digits 1, 2, 3, 4. Well-
formed Sudoku puzzles do not require any guessing of cell assignments for solving them.
3
4
2
3
3
2
1
3
a) Formulate the general problem of solving 2 × 2 Sudoku as a constraint satisfaction problem.
Describe the structure of the constraint graph associated with the constraint satisfaction
problem.
b) Describe the backtracking algorithm with forward checking to solve constraint satisfaction
problems.

4. Constraint Satisfaction Problem
Consider the problem of solving a 2x2 Sudoku puzzle. It is played on a grid consisting of 4 × 4
cells subdivided into four 2 × 2 squares as shown in the figure below. Some of the cells are
empty, some of them are filled with digits from 1 through 4. The aim is to fill in the empty cells
such that every row, every column, and every 2 × 2 square contains the digits 1, 2, 3, 4. Well-
formed Sudoku puzzles do not require any guessing of cell assignments for solving them.
3
4
2
3
3
2
1
3
a) Formulate the general problem of solving 2 × 2 Sudoku as a constraint satisfaction problem.
Describe the structure of the constraint graph associated with the constraint satisfaction
problem.
b) Describe the backtracking algorithm with forward checking to solve constraint satisfaction
problems.

Added by Jonathan G.

Question

Please give Ace some feedback