http://sudoku-game.herokuapp.com//
- play on-line
- print sudoku book
Solve sudoku from file:
sudoku.rb <filename>
sudoku.rb <filename> <timelimit (0==off, -1==inf)>
Generate new sudoku:
sudoku.rb <dimension> [level=<1..5>] [alphabet|numeric] [time limit]
Create new sudoku:
require 'sudoku'
level = 3
dimension = 9
type = :numeric
sudoku = Sudoku::Genearator.new level, dimension, type
sudoku.print_sudoku
Solve sudoku with time limit 60 secods:
require 'sudoku'
sudoku = Sudoku::Solver.new Sudoku::Grid.read_file(ARGV[0]), 60
sudoku.print_result
Solver firstly tries solve a grid with rules before brute force method. Brute force method can be limited with time.
Implemented rules:
- Only choice rule
- Single possibility rule
- Two out of three
- Only square rule
- Hidden single
- Naked Twins exclusion rule
- Hidden Twins exclusion rule
- Subgroup exclusion rule
- X-Wing exclusion rule
- Sword Fish rule