diff --git a/Source/functions/solve/puzzleExtension.cpp b/Source/functions/solve/puzzleExtension.cpp
index 5906441..e46999c 100644
--- a/Source/functions/solve/puzzleExtension.cpp
+++ b/Source/functions/solve/puzzleExtension.cpp
@@ -32,7 +32,7 @@ void Puzzle::putIntoBox()
         for(int j=0;j<this->getSizeAsCoor().row;j++)
         {
 
-            tmpPart.m_a1=this->a1.m_constraintMatrix[i][j];
+            tmpPart.m_a1=this->a1.m_constraintMatrix[i+1][j+1];
             //sets part id
             tmpPart.SetPartID(id++);
             // adds all 4 rotations to Box
diff --git a/Source/functions/solve/structure.cpp b/Source/functions/solve/structure.cpp
index 71e521e..8a21627 100755
--- a/Source/functions/solve/structure.cpp
+++ b/Source/functions/solve/structure.cpp
@@ -9,7 +9,8 @@ bool next(vector<LogEntry>& log,Puzzle& puzzleMat)
 {
     //last log element is set, create new log element or log not yet started
     if(!(log.size()) || log.back().isSet())
-    	if((puzzleMat.allSet())) return false; //puzzle solved
+    	if((puzzleMat.allSet()))
+            return false; //puzzle solved
     	else createNextLogElement(log,puzzleMat);
 
     //last log element is empty, backtrack
@@ -116,10 +117,12 @@ bool backtrack(vector<LogEntry>& log, Puzzle& puzzleMat)
         return false;
     }
     puzzleMat.combinedQualityVector.clear(); //remove all data from temp quality save
-    //if more pieces possible, take next piece
+    //if more pieces possible, tset piece as not logged
     if((log.back().PieceCollector.size())>1)
     {
-        puzzleMat.p_myBox.push_back(log.back().PieceCollector.begin()->second);
+        for(int i=0;i<puzzleMat.p_myBox.size();i++)
+            if(puzzleMat.p_myBox[i]->GetPartID()==log.back().PieceCollector.begin()->second->GetPartID())//sets all with partid
+                puzzleMat.p_myBox[i]->set=false;
         log.back().PieceCollector.erase(log.back().PieceCollector.begin());
 
         if(log.back().PieceCollector.size()==1)
diff --git a/Source/main.cpp b/Source/main.cpp
index 661a56a..3472ac5 100644
--- a/Source/main.cpp
+++ b/Source/main.cpp
@@ -5,7 +5,7 @@ int LogEntry::randomed(0);
 int main()
 {
 
-    unsigned int cols=6,rows=8;
+    unsigned int cols=9,rows=8;
 
     vector<LogEntry> log;
     Puzzle puzzleMat(cols, rows);