ai-sudoku-solver's Introduction

AI-Sudoku-Solver

Solving Sudoku puzzles with backtracking and local search algorithms
Contributers: Gearhartlove | LordThesus | MrVintage710

Simple Backtracking
Backtrackign with forward checking
Backtracking using arc consistency
Genetic Algorithm with a tournament and penalty function
Simulated Annealing using a minimum conflict heuristic

Input

9x9 grid filled with number or ? (empty space) as a .txt file

?,?,8,?,5,6,?,?,?
7,?,4,?,?,?,6,1,9
?,?,?,?,?,?,8,5,?
6,?,7,?,2,9,5,?,?
?,?,9,?,6,?,1,?,?
?,?,2,3,1,?,9,?,4
?,3,5,?,?,?,?,?,?
4,2,1,?,?,?,3,?,6
?,?,?,8,3,?,4,?,?

The Input for the project is stored at: AI-Sudoku-Solver/AI-Sudoku-Solver/puzzles
There are a total of 19 puzzle files similar to the example above. The program runs each algorithm for each puzzle, one at a time.

Output

Hard-P4.csv:
    (Simple Backtracking) - SOLVED (Checker) - PASSED | ms: 2 | backtracks: 44 | nodes visit: 98
    (Look Forward Backtracking) - SOLVED (Checker) - PASSED | ms: 5 | backtracks: 44 | nodes visit: 98
    (MAC Backtracking) - SOLVED (Checker) - PASSED | ms: 312 | backtracks: 9534 | nodes visit: 9588
    (Genetic Local Search) - UNSOLVED (Checker) - FAILED | 
        (Constraints violated by the population)
        START worst: 161 best: 123 mean: 141.48 median: 142
        END   worst: 56 best: 24 mean: 24.65 median: 24
    (Simmulated Annealing Local Search) - UNSOLVED (Checker) - FAILED | ms: 122
Starting Puzzle Violation Score: 87 | Final Puzzle Violation Score: 22

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