public:
void init(const Search::LimitsType& limits, int currentPly, Color us);
void pv_instability(double bestMoveChanges) { unstablePvFactor = 1 + bestMoveChanges; }
public:
void init(const Search::LimitsType& limits, int currentPly, Color us);
void pv_instability(double bestMoveChanges) { unstablePvFactor = 1 + bestMoveChanges; }