public bool SueDeCoq( )
{
if (pAnMan.GStage != GStageMemo)
{
GStageMemo = pAnMan.GStage;
fALS.Initialize();
fALS.PrepareALSLinkMan(+2); //Generate ALS(+1 & +2)
}
if (fALS.ALSLst.Count <= 3)
{
return(false);
}
foreach (var ISPB in fALS.ALSLst.Where(p => p.tfx >= 18 && p.Size >= 3)) //Selecte Block-type ALS
{
if (ISPB.rcbRow.BitCount() <= 1 || ISPB.rcbCol.BitCount() <= 1)
{
continue; //Block squares have multiple rows and columns
}
foreach (var ISPR in fALS.ALSLst.Where(p => p.tfx < 18 && p.Size >= 3))
{
//Selecte Row-type/Column-type ALS
if ((ISPR.rcbBlk & ISPB.rcbBlk) == 0)
{
continue; //Intersect with ISPB
}
if (ISPR.rcbBlk.BitCount() < 2)
{
continue; //ISPR has multiple blocks
}
//Are the cell configurations of the intersections the same?
if ((ISPB.B81 & HouseCells[ISPR.tfx]) != (ISPR.B81 & HouseCells[ISPB.tfx]))
{
continue;
}
// ***** the code follows HP -> http://csdenpe.web.fc2.com/page45.html *****
Bit81 IS = ISPB.B81 & ISPR.B81; //Intersection
if (IS.Count < 2)
{
continue;
}
//At least 2 cells at the intersection
if ((ISPR.B81 - IS).Count == 0)
{
continue; //There is a part other than the intersecting part in ISPR
}
Bit81 PB = ISPB.B81 - IS; //ISPB's outside IS
Bit81 PR = ISPR.B81 - IS; //ISPR's outside IS
int IS_FreeB = IS.AggregateFreeB(pBDL); //Intersection number
int PB_FreeB = PB.AggregateFreeB(pBDL); //ISPB's number outside the IS
int PR_FreeB = PR.AggregateFreeB(pBDL); //ISPR's number outside the IS
if ((IS_FreeB & PB_FreeB & PR_FreeB) > 0)
{
continue;
}
//A.DifSet(B)=A-B=A&(B^0x1FF)
int PB_FreeBn = PB_FreeB.DifSet(IS_FreeB); //Numbers not at the intersection of PB
int PR_FreeBn = PR_FreeB.DifSet(IS_FreeB); //Numbers not in the intersection of PR
int sdqNC = PB_FreeBn.BitCount() + PR_FreeBn.BitCount(); //Number of confirmed numbers outside the intersection
if ((IS_FreeB.BitCount() - IS.Count) != (PB.Count + PR.Count - sdqNC))
{
continue;
}
int elmB = PB_FreeB | IS_FreeB.DifSet(PR_FreeB); //Exclusion Number in PB
int elmR = PR_FreeB | IS_FreeB.DifSet(PB_FreeB); //Exclusion Number in PR
if (elmB == 0 && elmR == 0)
{
continue;
}
foreach (var P in _GetRestCells(ISPB, elmB))
{
P.CancelB |= P.FreeB & elmB; SolCode = 2;
}
foreach (var P in _GetRestCells(ISPR, elmR))
{
P.CancelB |= P.FreeB & elmR; SolCode = 2;
}
if (SolCode > 0) //--- SueDeCoq found -----
{
SolCode = 2;
SuDoQueEx_SolResult(ISPB, ISPR);
if (ISPB.Level >= 3 || ISPB.Level >= 3)
{
WriteLine("Level-3");
}
if (__SimpleAnalizerB__)
{
return(true);
}
if (!pAnMan.SnapSaveGP(true))
{
return(true);
}
}
}
}
return(false);
}
} //UVWXYZ-wing
private bool _UVWXYZwing(int wsz) //simple UVWXYZwing
{
if (pAnMan.GStage != GStageMemo)
{
GStageMemo = pAnMan.GStage;
FBCX = pBDL.FindAll(p => p.FreeBC == wsz);
}
if (FBCX.Count == 0)
{
return(false);
}
bool wingF = false;
foreach (var P0 in FBCX) //focused Cell
{
int b0 = P0.b; //focused Block
foreach (int no in P0.FreeB.IEGet_BtoNo()) //focused Digit
{
int noB = 1 << no;
Bit81 P0con = (new Bit81(pBDL, noB, FreeBC: 2)) & ConnectedCells[P0.rc];
Bit81 Pin = P0con & HouseCells[18 + P0.b];
Bit81 Pout = null, Pin2 = null;
for (int dir = 0; dir < 2; dir++) //dir 0:row 1:col
{
int rcDir = (dir == 0)? P0.r: (9 + P0.c);
Pin2 = Pin - HouseCells[rcDir];
if (Pin2.IsZero())
{
continue;
}
Pout = (P0con & HouseCells[rcDir]) - HouseCells[18 + P0.b];
if (Pin2.Count + Pout.Count != (wsz - 1))
{
continue;
}
int FreeBin = Pin2.AggregateFreeB(pBDL);
int FreeBout = Pout.AggregateFreeB(pBDL);
if ((FreeBin | FreeBout) != P0.FreeB)
{
continue;
}
Bit81 ELst = HouseCells[rcDir] & HouseCells[18 + P0.b];
ELst.BPReset(P0.rc);
string msg3 = "";
foreach (var E in ELst.IEGet_rc().Select(p => pBDL[p]))
{
if ((E.FreeB & noB) > 0)
{
E.CancelB = noB; wingF = true;
msg3 += " " + E.rc.ToRCString();
}
}
if (!wingF)
{
continue;
}
//--- ...wing found -------------
SolCode = 2;
string[] xyzWingName = { "XYZ-Wing", "WXYZ-Wing", "VWXYZ-Wing", "UVWXYZ-Wing" };
string SolMsg = xyzWingName[wsz - 3];
if (SolInfoB)
{
P0.SetNoBBgColor(P0.FreeB, AttCr, SolBkCr2);
foreach (var P in Pin2.IEGet_rc().Select(p => pBDL[p]))
{
P.SetNoBBgColor(P.FreeB, AttCr, SolBkCr);
}
foreach (var P in Pout.IEGet_rc().Select(p => pBDL[p]))
{
P.SetNoBBgColor(P.FreeB, AttCr, SolBkCr);
}
string msg0 = " Pivot: " + P0.rc.ToRCString();
string st = ""; foreach (var rc in Pin2.IEGet_rc())
{
st += " " + rc.ToRCString();
}
string msg1 = " in: " + st.ToString_SameHouseComp();
st = ""; foreach (var rc in Pout.IEGet_rc())
{
st += " " + rc.ToRCString();
}
string msg2 = " out: " + st.ToString_SameHouseComp();
st = ""; foreach (var rc in Pin2.IEGet_rc())
{
st += " " + rc.ToRCString();
}
ResultLong = SolMsg + "\r" + msg0 + "\r " + msg1 + "\r " + msg2 + "\r Eliminated: " + msg3.ToString_SameHouseComp();
Result = SolMsg + msg0 + msg1 + msg2;
}
if (__SimpleAnalizerB__)
{
return(true);
}
if (!pAnMan.SnapSaveGP(true))
{
return(true);
}
wingF = false;
}
}
}
return(false);
}