Colony Flow Level 637 Walkthrough Solution & Guides | How to solve Colony Flow 637

Welcome to Colony Flow Level 637. This puzzle presents a bright pixel art painting of a large tree set against a colourful sky. You have a lot of ground to cover and many different colours to manage right from the start. I found this level requires a steady pace and careful attention to the special items waiting in your tray.

Colony Flow Level 637 Overview

What You Are Working With

The board features a massive tree with light green and dark green leaves. A light blue sky fills the top half of the picture. A thick brown trunk and ground area sit at the bottom. You will also see pink flowers and gray rocks on the left side of the tree. The tray at the bottom holds your numbered blocks. This level includes several special mechanics that will challenge you. You will deal with hidden boxes that display question marks. These boxes hide their true colour until you move them. You also have connected boxes. These are green blocks linked together by a thick line that move as a single group. Finally you face a lock and key system. Wooden locks block parts of your tray. You need to collect specific key blocks to open these locks and reach the pieces trapped underneath.

What It Takes to Clear Level 637 Board

You win the level when the ants eat every single pixel tile and clear the entire picture. The ants stream out of a nest hole near the bottom of the screen. They need an open path to reach the food tiles. You control the ants by pulling coloured blocks from the tray into your five waiting slots. If you pull a block and the ants cannot reach the matching food tiles that block will sit completely stuck in the waiting slot. If you fill all five slots with blocked colours you lose the game immediately. You must always maintain an open path for at least one active block. You will spend the entire level chipping away at the outer edges of the picture to expose the inner tiles while keeping your slots perfectly clear.

Colony Flow Level 637 Step by Step Solution

Step 1: Clear the outer edges of the light blue sky and the brown ground

You start the level with light blue and brown blocks available in your tray. Look at the board and notice that the light blue sky tiles are completely exposed on the left and right edges. The brown ground tiles are completely exposed along the very bottom edge. Pull the light blue blocks into your waiting slots. The ants will stream out of the hole and march up the sides of the board to eat the sky. Pull a brown block next. The ants will start eating the bottom row of the ground. Keeping these accessible colours in your slots ensures your ants are always moving. This simple opening strategy prevents your waiting slots from jamming early in the game.

Step 2: Bring out the gray blocks to clear the rock formation

As the ants clear the left side of the sky they expose a gray rock formation. You will see blocks with a gray or white colour in your tray. Pull these blocks into your waiting slots. The ants will take on this colour and march over to the left side of the tree to consume the rock tiles. You must clear this rock completely to open up the pink tiles located just above it. Do not pull any pink blocks until the gray rock is mostly gone. If you pull a pink block too early it will sit in your waiting slot and consume valuable space while the ants finish the rock.

Step 3: Use the pink blocks to clear the flowers on the left side

Once the gray rock is gone the pink tiles become fully accessible. Pull the pink blocks from your tray into the empty waiting slots. The ants will turn pink and swarm the left side of the picture to eat the flower tiles. This move carves out a massive empty space on the left side of the board. You now have a wide open path to the left side of the tree canopy. Your waiting slots remain perfectly safe during this phase because the pink ants have a direct and unobstructed route to their food.

Step 4: Manage the connected green boxes with extreme patience

You will notice green blocks in your tray that are joined together by a thick green line. These are the connected boxes. When you pull one you pull the entire connected group into your waiting slots. This means they will take up two or more of your five slots instantly. You must be extremely careful with these blocks. Wait until the dark green leaves in the center of the tree are fully exposed. Only pull the connected green boxes when you are absolutely sure the ants have a clear path to the dark green tiles. Send the connected green blocks up the middle. The ants will eat a huge chunk of the dark green leaves and free up your slots quickly.

Step 5: Collect the key blocks to unlock the remaining tray items

Look at the blocks waiting in your tray. You will see blocks marked with key icons. You need these keys to remove the wooden locks blocking the rest of your blocks. Wait until the colour of a key block matches an open path on the board. Pull the key block into your waiting slot. The ants will consume this block and collect the key. The moment you collect the required keys the wooden locks disappear from your tray. This action reveals fresh blocks and hidden boxes that you desperately need to win. Prioritize these key blocks the moment their path opens up so you do not stall your progress.

Step 6: Reveal the hidden boxes one at a time

With the wooden locks gone you can access the hidden boxes marked with question marks. These boxes will not show you their colour until you move them into a waiting slot. You must ensure you have plenty of different exposed colours on the board before you risk pulling a hidden box. Pull one hidden box at a time. The box will reveal its colour and the ants will go to work on the matching tiles. If you pull multiple hidden boxes at once you risk revealing colours that are still trapped behind other tiles. This mistake will jam your waiting slots and end your game.

Step 7: Clear the yellow leaves on the right side of the tree

The hidden boxes and the newly unlocked tray sections will give you the yellow blocks you need. The right side of the tree is made almost entirely of yellow tiles. Pull the yellow blocks into your waiting slots. The ants will travel up the right side of the trunk and consume the yellow leaves. Balance these yellow blocks with any remaining light blue blocks. This dual approach lets the ants clear the rest of the sky and the yellow leaves at the exact same time. Your board will start looking very empty and your paths will be incredibly wide.

Step 8: Eliminate the final sky and ground tiles

You are now in the late stages of the puzzle. The top right corner of the light blue sky is still hanging on. Pull the final light blue blocks to send the ants up the right edge of the screen. Bring up the last few brown blocks to finish the right side of the ground. By clearing the sky and the ground you remove the entire outer shell of the picture. Only the very core of the tree remains. Your waiting slots are completely safe now because every single remaining tile is exposed on all sides.

Step 9: Finish the last cluster of yellow and green leaves

The board is now mostly empty space. Only a small cluster of yellow and green leaf tiles sits in the very center. Pull the remaining yellow blocks into your empty waiting slots. The ants will march straight up the middle of the board and clear out the last yellow spots. Pull the final connected green boxes to send the ants after the remaining dark green and light green tiles. Watch the numbers on your blocks count down to zero. The ants will finish the last piece of food and clear the board entirely.

Final Thought

This level requires patience and a strict focus on keeping your waiting slots clear. You must handle the connected boxes and hidden boxes with extreme care to avoid a sudden loss. Watch the video above this article if any step is hard to follow in text. Seeing the ants move in real time will help you understand the exact timing for the key blocks and the hidden boxes.