protected Eval storeQXP(Eval mValue, EvalType et,
Move moveBest = Move.Undefined)
{
Trace.Assert(EvalUndefined < mValue, "storeQXP(EvalUndefined)");
traceVal("storeQXP", mValue, et); //[Conditional]
State.IncEvalType(et);
var mAdjusted = creditMate(mValue, SearchPly);
if (IsFinal())
{
Trace.Assert(!isDefined(moveBest), "moveBest defined in a Final position.");
moveBest = Move.EmptyMove;
}
#if DebugMoveColor
if (isDefinite(moveBest))
{
var bWTM = WTM();
var bWhiteMove = (moveBest & Move.WTM) != 0;
if (bWTM != bWhiteMove)
{
Debug.Assert(bWTM == bWhiteMove, "WTM != WhiteMove [storeQXP]");
DisplayCurrent("storeQXP()");
}
}
#endif
#if QXPHash128
var store = new QuietPosition(Hash, State.MovePly, HashPawn, mAdjusted, et, moveBest);
#else
var store = new QuietPosition(Hash, State.MovePly, mAdjusted, et, moveBest);
#endif
State.QXPTank.Save(store);
return(mValue);
}
protected Boolean probeQXP(Eval mAlpha, Eval mBeta,
out Move moveFound, out Eval mValue, out EvalType etFound)
{
#if QXPHash128
var match = new QuietPosition(Hash, State.MovePly, HashPawn);
#else
var match = new QuietPosition(Hash, State.MovePly);
#endif
var bValid = State.QXPTank.LoadFirst(ref match);
var moveBest = adjustEmptyMove(match.BestMove);
moveFound = isDefined(moveBest) ? moveBest | Move.Qxnt : moveBest; //[out]3
etFound = match.Type; //[out]2
//[Note]Mate values are suspect because quiet moves were not considered
var mValueFound = match.Value;
mValue = adjustValue(mAlpha, mBeta, mValueFound, etFound, SearchPly); //[out]1
traceVal("probeQXP", mValue, etFound); //[Conditional]
var bValueDefined = EvalUndefined < mValue;
return(bValid && bValueDefined);
}
