Module bind 

High-level helpers intended for language bindings (rustoku-wasm, rustoku-py, …).

Rust consumers of rustoku-lib should use the core crate::Rustoku API directly. This module deliberately sits at rustoku_lib::bind and is not re-exported at the crate root so it stays out of the way.

These functions wrap the core Rustoku primitives and return simple, fully-owned Rust types so that binding crates (rustoku-wasm, rustoku-py, …) contain no solving logic of their own – they only marshal results into the target language’s type system.

Structs

CandidateChange

SolveOutput

Structured output from a solve-with-steps operation.

SolveStepInfo

Flat, serialisable representation of a single solve step.

Functions

candidates_grid

Returns the candidate digits for every cell as a 9×9 grid.

generate_complex_str

Advanced generation with specific clues and symmetry.

generate_str

Generates a puzzle for the given difficulty string and returns it as an 81-char string.

is_valid_solution

Returns true if puzzle is a fully-solved, valid Sudoku board.

solve_all_str

Solves puzzle and returns all solutions as 81-char strings.

solve_any_str

Solves puzzle and returns the first solution as an 81-char string, or None if unsolvable.

solve_with_steps

Solves puzzle using human techniques for the given difficulty and returns a full step trace, or None if unsolvable.