TablebaseFallback Namespace Reference

Functions
std::optional< Move >	probeRoot (Board &root, IEvaluator &evalCtx, std::shared_ptr< SearchSharedData > &shared, const InfoCallback &infoCallback)
	Probes the tablebase at the root node.

Function Documentation

probeRoot()

std::optional< Move > TablebaseFallback::probeRoot	(	Board &	root,
		IEvaluator &	evalCtx,
		std::shared_ptr< SearchSharedData > &	shared,
		const InfoCallback &	infoCallback )

Probes the tablebase at the root node.

If a tablebase move is found and verified (including falling back to WDL if DTZ is missing), it prints info strings, optionally calls the infoCallback, sets shared->stop to true, and returns the best move.

Parameters

root	The root board position.
evalCtx	The active evaluator context.
shared	Shared data across search threads (for stop flags).
infoCallback	Callback to emit UCI info strings.

Returns

std::optional<Move> The best tablebase move, or std::nullopt if normal search should proceed.

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