diff --git a/util/Grid.cpp b/util/Grid.cpp
index cdd07eb..7a4cbfb 100644
--- a/util/Grid.cpp
+++ b/util/Grid.cpp
@@ -89,43 +89,16 @@ cells Grid::getGridCells() {
 }
 
 bool Grid::isBlocked(coordinates p) {
-  return isWall(p); //|| isLockedDoor(p) || isKey(p);
+  return isWall(p);
 }
 
 bool Grid::isWall(coordinates p) {
   return std::find_if(walls.begin(), walls.end(),
       [p](cell cell) {
-        return cell.row == p.first && cell.column == p.second;
+        return cell.row == p.second && cell.column == p.first;
       }) != walls.end();
 }
 
-bool Grid::isLockedDoor(coordinates p) {
-  return std::find_if(lockedDoors.begin(), lockedDoors.end(),
-      [p](cell cell) {
-        return cell.row == p.first && cell.column == p.second;
-      }) != lockedDoors.end();
-}
-
-bool Grid::isUnlockedDoor(coordinates p) {
-  return std::find_if(unlockedDoors.begin(), unlockedDoors.end(),
-      [p](cell cell) {
-        return cell.row == p.first && cell.column == p.second;
-      }) != unlockedDoors.end();
-}
-
-bool Grid::isKey(coordinates p) {
-  return std::find_if(keys.begin(), keys.end(),
-      [p](cell cell) {
-        return cell.row == p.first && cell.column == p.second;
-      }) != keys.end();
-}
-
-bool Grid::isBox(coordinates p) {
-  return std::find_if(boxes.begin(), boxes.end(),
-      [p](cell cell) {
-        return cell.row == p.first && cell.column == p.second;
-      }) != boxes.end();
-}
 
 void Grid::applyOverwrites(std::string& str, std::vector<Configuration>& configuration) {
   for (auto& config : configuration) {
diff --git a/util/Grid.h b/util/Grid.h
index 80f5055..e33d34e 100644
--- a/util/Grid.h
+++ b/util/Grid.h
@@ -22,16 +22,12 @@ struct GridOptions {
 
 class Grid {
   public:
-    Grid(cells gridCells, cells background, const GridOptions &gridOptions, const std::map<coordinates, float> &stateRewards = {}, const double faultyProbability = 0);
+    Grid(cells gridCells, cells background, const GridOptions &gridOptions, const std::map<coordinates, float> &stateRewards = {}, const float faultyProbability = 0);
 
     cells getGridCells();
 
     bool isBlocked(coordinates p);
     bool isWall(coordinates p);
-    bool isLockedDoor(coordinates p);
-    bool isUnlockedDoor(coordinates p);
-    bool isKey(coordinates p);
-    bool isBox(coordinates p);
     void printToPrism(std::ostream &os, std::vector<Configuration>& configuration, const prism::ModelType& modelType);
     void applyOverwrites(std::string& str, std::vector<Configuration>& configuration);
 
@@ -69,5 +65,5 @@ class Grid {
     std::map<Color, cells> backgroundTiles;
 
     std::map<coordinates, float> stateRewards;
-    double faultyProbability;
+    float faultyProbability;
 };
diff --git a/util/cell.cpp b/util/cell.cpp
index df20997..c6a72a1 100644
--- a/util/cell.cpp
+++ b/util/cell.cpp
@@ -4,10 +4,14 @@
 
 std::ostream &operator<<(std::ostream &os, const cell &c) {
   os << static_cast<char>(c.type) << static_cast<char>(c.color);
-  os <<  " at (" << c.row << "," << c.column << ")";
+  os <<  " at (" << c.column << "," << c.row << ")";
   return os;
 }
 
+coordinates cell::getCoordinates() const {
+  return std::make_pair(column, row);
+}
+
 cell cell::getNorth(const std::vector<cell> &grid) const {
   auto north = std::find_if(grid.begin(), grid.end(), [this](const cell &c) {
         return this->row - 1 == c.row && this->column == c.column;
@@ -52,10 +56,6 @@ cell cell::getWest(const std::vector<cell> &grid) const {
   return *west;
 }
 
-coordinates cell::getCoordinates() const {
-  return std::make_pair(row, column);
-}
-
 std::string cell::getColor() const {
   switch(color) {
     case Color::Red:    return "red";
diff --git a/util/cell.h b/util/cell.h
index d1d1169..ca71559 100644
--- a/util/cell.h
+++ b/util/cell.h
@@ -40,10 +40,10 @@ std::string getColor(Color color);
 
 class cell {
   public:
-    coordinates getNorth() const { return std::make_pair(row - 1, column); }
-    coordinates getSouth() const { return std::make_pair(row + 1, column); }
-    coordinates getEast()  const { return std::make_pair(row, column + 1); }
-    coordinates getWest()  const { return std::make_pair(row, column - 1); }
+    coordinates getNorth() const { return std::make_pair(column, row - 1); }
+    coordinates getSouth() const { return std::make_pair(column, row + 1); }
+    coordinates getEast()  const { return std::make_pair(column + 1, row); }
+    coordinates getWest()  const { return std::make_pair(column - 1, row); }
 
     cell getNorth(const std::vector<cell> &grid) const;
     cell getEast(const std::vector<cell> &grid) const;