UciOptions Struct Reference

Holds all configurable engine parameters. More...

#include <UciOptions.h>

Collaboration diagram for UciOptions:

Public Member Functions
void	printOptions () const
	Prints all standard options to standard output.
void	setOption (const std::string &name, const std::string &value, UciProtocol *uci)
	Parses a single option and applies it.

Public Attributes
std::string	modelPath
	Path to neural network weights.
std::string	tbPath
	Path to Syzygy tablebases.
std::string	bookPath
	Path to primary Polyglot opening book.
std::string	bookPath2
	Path to secondary Polyglot opening book.
size_t	hashSizeMB = 128
	Transposition table size in MB.
int	numThreads = 1
	Number of search threads (Lazy SMP).
int	evalThreads = 0
	Number of eval threads (0 = Auto).
bool	useMCTS = false
	True to use MCTS, false for Alpha-Beta.
bool	useSimpleEval = false
	True to fallback to non-neural evaluation.
bool	useBook = true
	True to use opening books.
bool	analyseMode = false
	True if analyzing (disables time management).
bool	chess960 = false
	True if playing Chess960 (Fischer Random).
float	aggression = 0.0f
	Playstyle aggression modifier.
int	lazyEvalMaxDepth = 6
	Maximum depth to use lazy eval.
int	lazyEvalBaseMargin = 500
	Static evaluation margin.
int	lazyEvalDepthMargin = 100
	Depth scaling margin.
bool	enableLazyEval = true
	True to enable lazy evaluation.
int	evalScaleBase = 750
	Base scale for centipawn conversion.
int	evalScaleWeight = 25
	Weight scalar for evaluation.
bool	enableEvalNormalization = true
	Normalizes scores.
int	nativeRebuildEveryNEvals = 0
	Incremental MoE rebuild interval.
SearchSharedData::SearchConfig	searchConfig
	Search-specific heuristics configuration.
bool	exportTree = false
	True to export the search tree (debug).
int	exportTreeDepth = 4
	Depth limit for tree export.
bool	autoSaveTTSnapshots = false
	True to automatically save TT.
std::string	ttSnapshotDir = "tt_snapshots"
	Directory for TT snapshots.

Detailed Description

Holds all configurable engine parameters.

Member Function Documentation

printOptions()

void UciOptions::printOptions

(

)

const

Prints all standard options to standard output.

setOption()

void UciOptions::setOption	(	const std::string &	name,
		const std::string &	value,
		UciProtocol *	uci )

Parses a single option and applies it.

Triggers side effects via the UciProtocol pointer if needed (e.g. resizing hash).

Parameters

name	The name of the option.
value	The value of the option.
uci	Pointer to the UCI controller.

Here is the call graph for this function:

Member Data Documentation

aggression

float UciOptions::aggression = 0.0f

Playstyle aggression modifier.

analyseMode

bool UciOptions::analyseMode = false

True if analyzing (disables time management).

autoSaveTTSnapshots

bool UciOptions::autoSaveTTSnapshots = false

True to automatically save TT.

bookPath

std::string UciOptions::bookPath

Path to primary Polyglot opening book.

bookPath2

std::string UciOptions::bookPath2

Path to secondary Polyglot opening book.

chess960

bool UciOptions::chess960 = false

True if playing Chess960 (Fischer Random).

enableEvalNormalization

bool UciOptions::enableEvalNormalization = true

Normalizes scores.

enableLazyEval

bool UciOptions::enableLazyEval = true

True to enable lazy evaluation.

evalScaleBase

int UciOptions::evalScaleBase = 750

Base scale for centipawn conversion.

evalScaleWeight

int UciOptions::evalScaleWeight = 25

Weight scalar for evaluation.

evalThreads

int UciOptions::evalThreads = 0

Number of eval threads (0 = Auto).

exportTree

bool UciOptions::exportTree = false

True to export the search tree (debug).

exportTreeDepth

int UciOptions::exportTreeDepth = 4

Depth limit for tree export.

hashSizeMB

size_t UciOptions::hashSizeMB = 128

Transposition table size in MB.

lazyEvalBaseMargin

int UciOptions::lazyEvalBaseMargin = 500

Static evaluation margin.

lazyEvalDepthMargin

int UciOptions::lazyEvalDepthMargin = 100

Depth scaling margin.

lazyEvalMaxDepth

int UciOptions::lazyEvalMaxDepth = 6

Maximum depth to use lazy eval.

modelPath

std::string UciOptions::modelPath

Path to neural network weights.

nativeRebuildEveryNEvals

int UciOptions::nativeRebuildEveryNEvals = 0

Incremental MoE rebuild interval.

numThreads

int UciOptions::numThreads = 1

Number of search threads (Lazy SMP).

searchConfig

SearchSharedData::SearchConfig UciOptions::searchConfig

Search-specific heuristics configuration.

tbPath

std::string UciOptions::tbPath

Path to Syzygy tablebases.

ttSnapshotDir

std::string UciOptions::ttSnapshotDir = "tt_snapshots"

Directory for TT snapshots.

useBook

bool UciOptions::useBook = true

True to use opening books.

useMCTS

bool UciOptions::useMCTS = false

True to use MCTS, false for Alpha-Beta.

useSimpleEval

bool UciOptions::useSimpleEval = false

True to fallback to non-neural evaluation.

---

The documentation for this struct was generated from the following files:

• engine/src/uci/UciOptions.h
• engine/src/uci/UciOptions.cpp