//----------------------------------------------------------------------------------------------------------
public static void Init(cPosicion pos, cEvalInfo evalInfo, color colr)
{
color colorVS = (colr == cColor.BLANCO ? cColor.NEGRO : cColor.BLANCO);
sq Down = (colr == cColor.BLANCO ? cCasilla.SUR : cCasilla.NORTE);
evalInfo.m_Clavadas[colr] = pos.pinned_pieces(colr);
bitbrd b = evalInfo.m_Ataques[colorVS][cPieza.REY] = pos.attacks_from_square_piecetype(pos.GetRey(colorVS), cPieza.REY);
evalInfo.m_Ataques[colr][cPieza.NAN] = evalInfo.m_Ataques[colr][cPieza.PEON] = evalInfo.m_Peones.GetPeonesAtaques(colr);
if (pos.GetNum(colr, cPieza.DAMA) != 0 && pos.MaterialPieza(colr) > cValoresJuego.DAMA_MJ + cValoresJuego.PEON_MJ)
{
evalInfo.m_ReyAcorralado[colorVS] = b | cBitBoard.Desplazamiento(b, Down);
b &= evalInfo.m_Ataques[colr][cPieza.PEON];
evalInfo.m_AtaquesAlRey[colr] = (b != 0) ? cBitBoard.CountMax15(b) : 0;
evalInfo.m_ZonaDelRey[colr] = evalInfo.m_PesoAtaquesAlRey[colr] = 0;
}
else
{
evalInfo.m_ReyAcorralado[colorVS] = 0;
evalInfo.m_AtaquesAlRey[colr] = 0;
}
}
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]);
}
//----------------------------------------------------------------------------------------
public static int JugadasLegales(cPosicion pos, cMov[] mlist, int mPos)
{
int end, cur = mPos;
bitbrd pinned = pos.pinned_pieces(pos.ColorMueve());
sq ksq = pos.GetRey(pos.ColorMueve());
end=pos.Jaques()!=0 ? Evasiones(pos, mlist, mPos)
: Generar(pos, mlist, mPos, cMovType.NON_EVASIONS);
while(cur!=end)
if((pinned!=0||cTypes.GetFromCasilla(mlist[cur].m)==ksq||cTypes.TipoMovimiento(mlist[cur].m)==cMovType.ENPASO)
&&!pos.IsLegalMov(mlist[cur].m, pinned))
mlist[cur].m=mlist[--end].m;
else
++cur;
return end;
}