diff --git a/Block.h b/Block.h
index d6d343a..cd4db12 100644
--- a/Block.h
+++ b/Block.h
@@ -21,6 +21,7 @@ class Block{
     vf2d pos;
     BlockColor col;
     bool markedForDeletion=false;
+    bool markedForRemoval=false;
     Block(vf2d pos,BlockColor col)
     :pos(pos),col(col){}
 };
diff --git a/BlockClump.cpp b/BlockClump.cpp
index eb1e662..d448142 100644
--- a/BlockClump.cpp
+++ b/BlockClump.cpp
@@ -16,6 +16,16 @@ void BlockClump::addBlock(vf2d offset,BlockColor color){
     blocks.push_back(Block(offset,color));
 }
 
+void BlockClump::addBlockOnTopOf(int col,BlockColor color){
+    int highestY=999999;
+    for (Block&b:blocks) {
+        if (b.pos.x/12==col&&b.pos.y<=highestY) {
+            highestY=b.pos.y;
+        }
+    }
+    addBlock(col,(highestY==999999)?0:highestY/12-1,color);
+}
+
 vf2d BlockClump::getBlockPosition(Block&b){
     return {b.pos.x,b.pos.y+y};
 }
\ No newline at end of file
diff --git a/BlockClump.h b/BlockClump.h
index 86ff460..96b19f1 100644
--- a/BlockClump.h
+++ b/BlockClump.h
@@ -16,6 +16,7 @@ class BlockClump{
     void addBlock(int col,BlockColor color);
     void addBlock(int col,int row,BlockColor color);
     void addBlock(vf2d offset,BlockColor color);
+    void addBlockOnTopOf(int col,BlockColor color);
     //Get a block's position relative to this block clump.
     vf2d getBlockPosition(Block&b);
 };
diff --git a/Board.cpp b/Board.cpp
index f304ef6..0637771 100644
--- a/Board.cpp
+++ b/Board.cpp
@@ -21,6 +21,10 @@ void Board::spawnBlock(int col){
     clumps.push_back(c);
 }
 
+void Board::addClump(BlockClump&c){
+    clumps.push_back(c);
+}
+
 std::vector<Block>&Board::getBlocks(int col){
     return cols[col];
 }
@@ -77,4 +81,8 @@ BlockColor ColorDistributor::getRandomColor(){
         }
     }
     return BlockColor::WHITE;
+}
+
+void Board::removeBlock(int col,int ind){
+    cols[col].erase(cols[col].begin()+ind);
 }
\ No newline at end of file
diff --git a/Board.h b/Board.h
index c1f9af6..3a245b8 100644
--- a/Board.h
+++ b/Board.h
@@ -44,9 +44,11 @@ class Board{
     Board();
     Board(vi2d boardSize,float gravity,float maxGravity,float launchSpd,float spawnRate,std::array<int,10> colorRates,Renderable&tileset);
     void spawnBlock(int col);
+    void addClump(BlockClump&c);
     std::vector<Block>&getBlocks(int col);
     std::vector<BlockClump>&getBlockClumps();
     void convertClump(int ind);
     void removeClump(int ind);
+    void removeBlock(int col,int ind);
 };
 #endif
\ No newline at end of file
diff --git a/C++ProjectTemplate b/C++ProjectTemplate
index 5c9ad01..51640d1 100755
Binary files a/C++ProjectTemplate and b/C++ProjectTemplate differ
diff --git a/main.cpp b/main.cpp
index f763355..e24c935 100644
--- a/main.cpp
+++ b/main.cpp
@@ -16,7 +16,7 @@ bool Meteos::OnUserCreate()
     randBlockPos=std::uniform_int_distribution<>(0, 9);
     coinFlip=std::uniform_int_distribution<>(0, 1);
 
-	gameBoard=Board({10,14},20.f,100.f,-20.f,1.0f,{3,3,2,3,2,0,0,0,0,0},SPRITES["blocks_test.png"]);
+	gameBoard=Board({10,14},20.f,100.f,-20.f,1.0f,{3,0,0,0,0,0,0,0,0,0},SPRITES["blocks_test.png"]);
 
 	return true;
 }
@@ -185,8 +185,99 @@ bool Meteos::OnUserUpdate(float fElapsedTime)
 		}
 	}
 	for (int i=0;i<gameBoard.boardSize.x;i++){
+		for (Block&b:gameBoard.getBlocks(i)) {
+			float targetX=b.pos.x;
+			float targetY=b.pos.y;
+			bool found=false;
+			std::vector<Block*>matchedBlocksX;
+			std::vector<Block*>matchedBlocksY;
+			matchedBlocksX.push_back(&b);
+			matchedBlocksY.push_back(&b);
+			rightCheckGrounded:
+			float checkX=targetX+12;
+			float checkY=targetY;
+			do{
+				found=false;
+				for (Block&b2:gameBoard.getBlocks(i)){
+					if (b.pos.x==b2.pos.x&&b.pos.y==b2.pos.y)continue;
+					if (b.col==b2.col&&b2.col!=BlockColor::LAUNCHED&&b2.pos.x==checkX&&b2.pos.y==checkY) {
+						found=true;
+						checkX+=12;
+						matchedBlocksX.push_back(&b2);
+					}
+				}
+			}while(found);
+			leftCheckGrounded:
+			checkX=targetX-12;
+			checkY=targetY;
+			do{
+				found=false;
+				for (Block&b2:gameBoard.getBlocks(i)){
+					if (b.pos.x==b2.pos.x&&b.pos.y==b2.pos.y)continue;
+					if (b.col==b2.col&&b2.col!=BlockColor::LAUNCHED&&b2.pos.x==checkX&&b2.pos.y==checkY) {
+						found=true;
+						checkX-=12;
+						matchedBlocksX.push_back(&b2);
+					}
+				}
+			}while(found);
+			upCheckGrounded:
+			checkX=targetX;
+			checkY=targetY-12;
+			do{
+				found=false;
+				for (Block&b2:gameBoard.getBlocks(i)){
+					if (b.pos.x==b2.pos.x&&b.pos.y==b2.pos.y)continue;
+					if (b.col==b2.col&&b2.col!=BlockColor::LAUNCHED&&b2.pos.x==checkX&&b2.pos.y==checkY) {
+						found=true;
+						checkY-=12;
+						matchedBlocksY.push_back(&b2);
+					}
+				}
+			}while(found);
+			downCheckGrounded:
+			checkX=targetX;
+			checkY=targetY+12;
+			do{
+				found=false;
+				for (Block&b2:gameBoard.getBlocks(i)){
+					if (b.pos.x==b2.pos.x&&b.pos.y==b2.pos.y)continue;
+					if (b.col==b2.col&&b2.col!=BlockColor::LAUNCHED&&b2.pos.x==checkX&&b2.pos.y==checkY) {
+						found=true;
+						checkY+=12;
+						matchedBlocksY.push_back(&b2);
+					}
+				}
+			}while(found);
+			if (matchedBlocksX.size()>2||matchedBlocksY.size()>2) {
+				BlockClump c;
+				c.y=b.pos.y-1;
+				if (matchedBlocksX.size()>2) {
+					for (Block*b2:matchedBlocksX) {
+						b2->col=BlockColor::LAUNCHED;
+						c.addBlockOnTopOf(b2->pos.x/12,b2->col);
+						b2->markedForRemoval=true;
+					}
+					c.vspeed=gameBoard.launchSpd;
+				}
+				if (matchedBlocksY.size()>2) {
+					for (int i=0;i<matchedBlocksY.size();i++) {
+						Block*b2=matchedBlocksY[i];
+						b2->col=BlockColor::LAUNCHED;
+						c.addBlockOnTopOf(b2->pos.x/12,b2->col);
+						b2->markedForRemoval=true;
+					}
+					c.vspeed=gameBoard.launchSpd;
+				}
+				gameBoard.addClump(c);
+			}
+		}
 		for (int y=0;y<gameBoard.getBlocks(i).size();y++){
 			Block&b=gameBoard.getBlocks(i)[y];
+			if (b.markedForRemoval){
+				gameBoard.removeBlock(i,y--);
+				continue;
+			}
 			DrawPartialDecal(b.pos+gameBoard.drawOffset,gameBoard.tileset,{(float)(int)b.col*12,0},{12,12});
 		}
 	}