Struct shakmaty_syzygy::Tablebase

pub struct Tablebase<S: Position + Clone + Syzygy> { /* fields omitted */ }

A collection of tables.

Methods

impl<S: Position + Clone + Syzygy> Tablebase<S>

pub fn new() -> Tablebase<S>

Create an empty collection of tables.

pub fn add_directory<P: AsRef<Path>>(&mut self, path: P) -> Result<()>

Add all relevant tables from a directory.

Tables are selected by filename, e.g. KQvKP.rtbz. The files are not actually opened. This happens lazily when probing.

Errors

Returns an error result when:

• The path does not exist.
• path is not a directory.
• The process lacks permissions to list the directory.

pub fn probe_wdl(&self, pos: &S) -> Result<Wdl, SyzygyError>

Probe tables for the Wdl value of a position.

This indicates if the position is winning, lost or drawn with or without the 50-move rule.

Errors

See SyzygyError for possible error conditions.

pub fn probe_dtz(&self, pos: &S) -> Result<Dtz, SyzygyError>

Probe tables for the Dtz value of a position.

Min-maxing the DTZ of the available moves guarantees achieving the optimal outcome under the 50-move rule.

Errors

See SyzygyError for possible error conditions.

pub fn best_move(&self, pos: &S) -> Result<Option<(Move, Dtz)>, SyzygyError>

Select a DTZ-optimal move.

Errors

See SyzygyError for possible error conditions.

Trait Implementations

impl<S: Debug + Position + Clone + Syzygy> Debug for Tablebase<S>

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

Formats the value using the given formatter.

impl<S: Position + Clone + Syzygy> Default for Tablebase<S>

fn default() -> Tablebase<S>

Returns the "default value" for a type.