Struct BoardGenerator 

pub struct BoardGenerator { /* private fields */ }

A builder for generating Sudoku puzzles with various constraints and properties.

BoardGenerator provides a unified interface for creating puzzles with specific clue counts, symmetry types, and difficulty levels.

Example

use rustoku_lib::{BoardGenerator, Symmetry};

let board = BoardGenerator::new()
    .clues(25)
    .symmetry(Symmetry::Rotational180)
    .generate();

assert!(board.is_ok());

Implementations

impl BoardGenerator

pub fn new() -> Self

Creates a new BoardGenerator with default settings (30 clues, no symmetry).

pub fn clues(self, num_clues: usize) -> Self

Sets the target number of clues for the generated puzzle.

pub fn symmetry(self, symmetry: Symmetry) -> Self

Sets the type of symmetry to apply to the generated puzzle.

pub fn difficulty(self, difficulty: Difficulty) -> Self

Sets the target difficulty for the generated puzzle.

If a difficulty is set, the generator will attempt to find a puzzle of that exact difficulty by repeatedly generating candidates.

pub fn max_attempts(self, max_attempts: usize) -> Self

Sets the maximum number of attempts when generating a puzzle with a specific difficulty.

pub fn generate(&self) -> Result<Board, RustokuError>

Generates a new Sudoku puzzle based on the current configuration.

Trait Implementations

impl Clone for BoardGenerator

fn clone(&self) -> BoardGenerator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BoardGenerator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BoardGenerator

fn default() -> Self

Returns the “default value” for a type.

impl Copy for BoardGenerator