public void extract_pv_from_tt(cPosicion pos)
{
cPosInfo[] estate = new cPosInfo[cSearch.MAX_PLY_PLUS_6];
for (int i = 0; i < cSearch.MAX_PLY_PLUS_6; i++)
estate[i] = new cPosInfo();
cTablaHashStruct tte;
int st = 0;
int ply = 1;
mov m = m_PV[0];
val expectedScore = m_nVal;
m_PV.Clear();
do
{
m_PV.Add(m);
pos.DoMov(m_PV[ply++ - 1], estate[st++]);
tte = cMotor.m_TablaHash.Buscar(pos.ClaveHash());
expectedScore = -expectedScore;
} while (tte != null
&& expectedScore == cSearch.value_from_tt(tte.GetValue(), ply)
&& pos.IsPseudoLegalMov(m = tte.GetMove())
&& pos.IsLegalMov(m, pos.pinned_pieces(pos.ColorMueve()))
&& ply < cSearch.MAX_PLY
&& (!pos.IsTablas() || ply <= 2));
m_PV.Add(cMovType.MOV_NAN);
while (--ply != 0)
pos.DesMov(m_PV[ply - 1]);
}
