mattflow / sudoku-solver

Simple, lightweight sudoku solver.

Sudoku Solver

Simple, fast sudoku solver.

See it in action here: mattflow.github.io/sudoku-solver

Installation

npm install --save @mattflow/sudoku-solver

or

yarn add @mattflow/sudoku-solver

Simple Usage

Accepts a string or array of 81 elements with 0 representing an empty box.

Returns a string containing the solved puzzle.

var solve = require('@mattflow/sudoku-solver');
var puzzle = '000001200100700045000430700090006300050807020006200090003019000970004006002500000';
var solution = solve(puzzle);
console.log(solution);
// 745981263138762945629435718297156384354897621816243597583619472971324856462578139

solve(puzzle, options)

puzzle: A string or array of 81 elements with 0 representing an empty box.

options: An optional object containing configurations.

• emptyValue: Value representing an empty box. Default: '0'
• hintCheck: Boolean determining if a hint check is performed. Default: true
• outputArray: Boolean determining if an array is returned instead of a string. Default: false
• maxIterations: Value determining the maximum number of iterations before exiting. 0 to disable. Default: 1000000

Running Tests

npm test