{

public:

static const int Unknown;

static const int BucketSize;

TranspositionTable() = default;

TranspositionTable(int size);

void SetSize(int);

void Save(ZobristKey, Byte, Byte, int, Move, ScoreType);

void Clear();

std::pair<int, Move> Probe(ZobristKey, Byte, Byte, int, int);

Move GetPv(ZobristKey);

bool Concurrent = false;

private:

unsigned long long mask;

unsigned long entries;

unsigned long lock_entries;

HashEntry* table;

SpinLock* locks;

HashEntry* at(ZobristKey, int = 0) const;