diff --git a/src/Controllers/ConsoleController/ConsoleController.cpp b/src/Controllers/ConsoleController/ConsoleController.cpp
index d91e807..479b25d 100644
--- a/src/Controllers/ConsoleController/ConsoleController.cpp
+++ b/src/Controllers/ConsoleController/ConsoleController.cpp
@@ -33,10 +33,11 @@ void ConsoleController::run()
 		keyPress=this->waitArrowKeyPress();
 
 		//Apply move
-		m_game.swipe(keyPress);
+		bool moveDone=m_game.swipe(keyPress);
 
 		//Pop a random number on the grid
-		m_game.popRandomNumber();
+		if(moveDone)
+			m_game.popRandomNumber();
 
 		//Cout grid
 		m_game.coutGrid();
@@ -95,3 +96,10 @@ kbdh::Direction ConsoleController::waitArrowKeyPress()
 
 	return keyPress;
 }
+
+
+void ConsoleController::clearScreen(){
+	for(int i;i<100;i++){
+		std::cout << std::endl;
+	}
+}
diff --git a/src/Controllers/ConsoleController/ConsoleController.hpp b/src/Controllers/ConsoleController/ConsoleController.hpp
index 8d73f79..f2c19b8 100644
--- a/src/Controllers/ConsoleController/ConsoleController.hpp
+++ b/src/Controllers/ConsoleController/ConsoleController.hpp
@@ -21,6 +21,7 @@ class ConsoleController
 		ConsoleController();
 		~ConsoleController();
 		void run();
+		void clearScreen();
 };
 
 #endif
diff --git a/src/Model/Game.cpp b/src/Model/Game.cpp
index 6039bc9..5be88d9 100644
--- a/src/Model/Game.cpp
+++ b/src/Model/Game.cpp
@@ -12,23 +12,25 @@ Game::~Game(){
 
 bool Game::swipe(kbdh::Direction direction){
 
+	bool moveDone;
+
 	switch(direction){
 
 		case kbdh::Left:
-			m_grid.swipeLeft();
+			moveDone=m_grid.swipeLeft();
 			break;
 		case kbdh::Right:
-			m_grid.swipeRight();
+			moveDone=m_grid.swipeRight();
 			break;
 		case kbdh::Up:
-			m_grid.swipeUp();
+			moveDone=m_grid.swipeUp();
 			break;
 		case kbdh::Down:
-			m_grid.swipeDown();
+			moveDone=m_grid.swipeDown();
 			break;
 	}
 
-	return true;
+	return moveDone;
 }
 
 
diff --git a/src/Model/Grid.cpp b/src/Model/Grid.cpp
index 30193dd..666f228 100644
--- a/src/Model/Grid.cpp
+++ b/src/Model/Grid.cpp
@@ -9,7 +9,9 @@ Grid::Grid(): m_size(4), m_grid(4){
 			m_grid.at(i).push_back(0);
 		}
 	}
-
+	m_grid.at(0).at(0)=2;
+	m_grid.at(1).at(0)=2;
+	m_grid.at(2).at(0)=2;
 }
 
 //Destructor
@@ -27,20 +29,23 @@ std::string Grid::description(){
 
 	//Start to write description
 	std::stringstream gridBorder;
-	for(int i=0;i<(maxStrLen+2)*4+1;i++){
+	for(int i=0;i<(maxStrLen+1)*4+1;i++){
 		gridBorder<<"-";
 	}
 	description << std::endl << gridBorder.str() << std::endl;
 	for(int i=0;i<m_size;i++){
 		for(int j=0;j<m_size;j++){
 			std::stringstream spaceCol;
-			for(int k=0;k<maxStrLen-std::to_string(m_grid.at(i).at(j)).size();k++){
+			//Get number of space needed in cell
+			int nbSpace=maxStrLen-std::to_string(m_grid.at(i).at(j)).size();
+
+			for(int k=0;k<nbSpace;k++){
 				spaceCol << " ";
 			}
 			if(m_grid.at(i).at(j) == 0)
-				description << "| " << " " << spaceCol.str();
+				description <<  "|" << spaceCol.str() <<  " ";
 			else
-				description << "| " << m_grid.at(i).at(j) << spaceCol.str();
+				description << "|"<< spaceCol.str()  << m_grid.at(i).at(j) ;
 		}
 		description << "|";
 		description << std::endl;
@@ -119,7 +124,7 @@ bool Grid::setCell(int i, int j, int value){
 }
 
 
-std::vector<int> Grid::defragmentLine(std::vector<int> line){
+std::vector<int> Grid::rightDefragment(std::vector<int> line){
 	for(int j=0; j<m_size-1;j++){
 		for(int i=0; i<m_size-1;i++){
 			int val1=line.at(i);
@@ -134,7 +139,21 @@ std::vector<int> Grid::defragmentLine(std::vector<int> line){
 	return line;
 }
 
-std::vector<int> Grid::mergeLine(std::vector<int> line){
+std::vector<int> Grid::leftDefragment(std::vector<int> line){
+	for(int j=0; j<m_size-1;j++){
+		for(int i=m_size-1; i>0;i--){
+			int val1=line.at(i);
+			int val2=line.at(i-1);
+
+			if(val1 != 0 && val2 == 0){
+				line.at(i)=0;
+				line.at(i-1)=val1;
+			}
+		}
+	}
+	return line;
+}
+std::vector<int> Grid::rightMerge(std::vector<int> line){
 	for(int i=0; i< m_size-1;i++){
 		int val1=line.at(i);
 		int val2=line.at(i+1);
@@ -148,15 +167,28 @@ std::vector<int> Grid::mergeLine(std::vector<int> line){
 	return line;
 }
 
+std::vector<int> Grid::leftMerge(std::vector<int> line){
+	for(int i=m_size-1; i>0;i--){
+		int val1=line.at(i);
+		int val2=line.at(i-1);
+
+		if(val1==val2){
+			line.at(i)=0;
+			line.at(i-1)=val1*2;
+			i--;
+		}
+	}
+	return line;
+}
 std::vector<int> Grid::swipeLine(std::vector<int> line){
 
 	//Swipe line is :
 		//- A defragmentation
 		//- A merging
 		//- Another defragmentation
-	line=this->defragmentLine(line);
-	line=this->mergeLine(line);
-	line=this->defragmentLine(line);
+	line=this->rightDefragment(line);
+	line=this->rightMerge(line);
+	line=this->rightDefragment(line);
 
 	//Return swiped line
 	return line;
@@ -164,31 +196,60 @@ std::vector<int> Grid::swipeLine(std::vector<int> line){
 
 
 //Swipe to right
-void Grid::swipeRight(){
+bool Grid::swipeRight(){
+
+	bool moveDone=false;
 	for(int i=0; i<m_size;i++){
-		m_grid.at(i)=this->swipeLine(m_grid.at(i));
+		std::vector<int> swipedLine(this->rightDefragment(this->leftMerge(this->rightDefragment(m_grid.at(i)))));
+
+		if(!this->compareLines(m_grid.at(i), swipedLine)){
+			moveDone=true;
+			m_grid.at(i)=swipedLine;
+		}
 	}
+	return moveDone;
 }
 
 //Swipe to right
-void Grid::swipeLeft(){
+bool Grid::swipeLeft(){
+	bool moveDone=false;
 	for(int i=0; i<m_size;i++){
-		m_grid.at(i)=this->reverseLine(this->swipeLine(this->reverseLine(m_grid.at(i))));
+		std::vector<int> swipedLine(this->leftDefragment(this->rightMerge(this->leftDefragment(m_grid.at(i)))));
+		if(!this->compareLines(m_grid.at(i), swipedLine)){
+			moveDone=true;
+			m_grid.at(i)=swipedLine;
+		}
 	}
+	return moveDone;
 }
 
 
-void Grid::swipeUp(){
+bool Grid::swipeUp(){
+	bool moveDone=false;
 	for(int i=0; i<m_size;i++){
 		std::vector<int> colVect=this->getCol(i);
-		this->setCol(i,this->reverseLine(this->swipeLine(this->reverseLine(colVect))));
+
+		std::vector<int> swipedLine(this->leftDefragment(this->rightMerge(this->leftDefragment(colVect))));
+		if(!this->compareLines(colVect, swipedLine)){
+			moveDone=true;
+			this->setCol(i,swipedLine);
+		}
 	}
+	return moveDone;
 }
-void Grid::swipeDown(){
+bool Grid::swipeDown(){
+	bool moveDone=false;
 	for(int i=0; i<m_size;i++){
 		std::vector<int> colVect=this->getCol(i);
-		this->setCol(i,this->swipeLine(colVect));
+
+		std::vector<int> swipedLine(this->rightDefragment(this->leftMerge(this->rightDefragment(colVect))));
+
+		if(!this->compareLines(colVect, swipedLine)){
+			moveDone=true;
+			this->setCol(i,swipedLine);
+		}
 	}
+	return moveDone;
 }
 
 void Grid::setCol(int col, std::vector<int> colVect){
@@ -256,3 +317,13 @@ bool Grid::isOver(){
 
 
 }
+
+bool Grid::compareLines(std::vector<int> line1, std::vector<int> line2){
+
+	for(int i=0;i<m_size;i++){
+
+		if(line1.at(i) != line2.at(i))
+			return false;
+	}
+	return true;
+}
diff --git a/src/Model/Grid.hpp b/src/Model/Grid.hpp
index 2f5160e..09f3e5e 100644
--- a/src/Model/Grid.hpp
+++ b/src/Model/Grid.hpp
@@ -31,8 +31,10 @@ class Grid
 		bool setCell(int i, int j, int value);
 
 		std::vector<int> swipeLine(std::vector<int> line);
-		std::vector<int> defragmentLine(std::vector<int> line);
-		std::vector<int> mergeLine(std::vector<int> line);
+		std::vector<int> rightDefragment(std::vector<int> line);
+		std::vector<int> leftDefragment(std::vector<int> line);
+		std::vector<int> rightMerge(std::vector<int> line);
+		std::vector<int> leftMerge(std::vector<int> line);
 
 		std::vector<int> getCol(int col);
 
@@ -41,12 +43,13 @@ class Grid
 
 		void setCol(int col, std::vector<int> colVect);
 		std::vector<int> reverseLine(std::vector<int> line);
+		bool compareLines(std::vector<int> line1, std::vector<int> line2);
 
 		//Moves
-		void swipeRight();
-		void swipeLeft();
-		void swipeUp();
-		void swipeDown();
+		bool swipeRight();
+		bool swipeLeft();
+		bool swipeUp();
+		bool swipeDown();
 };