colonyflow Level 31

Overview

Level 31 is a Normal five-color stage whose target picture is a pixel-art watermelon slice: a cyan rind layer (about 35% of tiles), red flesh (about 34%), gray seeds (about 11%), blue inner rind (about 11%), and a green outer outline (about 9%), with tiny orange, yellow and pink trace accents. The goal is to clear every tile by tapping the number tiles at the bottom so ants carry each color away. Because the tiles are stacked, the gray seeds and green outline must leave first, then the cyan rind and red flesh, with the blue inner rind finishing as the bottom layer.

• Difficulty: Regular (Normal)
• Estimated moves: 20–35 taps

Step-by-Step Solution

1. Start by tapping the gray tile. Gray is the seeds on the watermelon flesh and sits on the outermost layer, so it is reachable immediately. Tap it and let the ants march to the seeds and begin carrying the gray squares away.
2. Next, tap the green tile. Green is the outer outline of the watermelon slice and sits on the same upper layer. Clear it in one push so the edge opens up.
3. While the green carry is running, clear the tiny orange, yellow and pink trace tiles opportunistically. They become reachable as the outline comes off; tapping them whenever a slot opens keeps the ants busy without blocking a slot.
4. When gray and green are mostly gone, tap the cyan tile. Cyan is the rind layer of the watermelon and was covered by the seeds and outline, so it only becomes reachable now. Keep the queue pointed at cyan in one continuous push and use the 2x speed-up button in the top-right corner to shorten the wait.
5. Next, tap the red tile. Red is the watermelon flesh and is exposed only after the cyan rind finishes. Sweep red in a moderate push, keeping spare slots free.
6. Finish with the blue tile. Blue is the inner rind layer — the bottom layer — so it is the last color to be exposed. Because it is final, the queue can safely be filled with blue to speed up the finish.
7. Keep the five-slot queue under active control: push one main color plus at most one small color at a time, finish a color before starting the next, and never jam all five slots with mixed colors.

Strategy & Reasoning

The level is built around the layered-stacking rule: a color that covers others must be carried away first, and the removal order measured in the solution video is gray, green, cyan, red, blue, which matches the geometry of the watermelon slice. Clearing the gray seeds and green outline before cyan matters because they sit on top; tapping cyan first would leave those small tiles buried. The queue is the bottleneck — five main colors plus trace accents share only five slots, and the worst mistake is pushing cyan and red at the same time, which leaves no room for the small traces and forces waiting. The efficient play is to alternate the large cyan rind carry with the small gray, green and trace colors so the ants are almost never idle. The 2x speed-up button should be active for the long cyan rind carry, since that single step accounts for most of the level's waiting time. If the queue jams, the Magnet tool pulls one whole color out of the line, while the Eraser is reserved for a single stuck tile.

Tips & Common Mistakes

• Tapping the red flesh before the gray seeds and green outline are gone is the classic mistake. The flesh tiles are still covered, so the ants have no path to them; always clear the seeds and outline first.
• Running cyan and red at the same time jams the five-slot queue and strands the small traces. Finish cyan completely before starting red.
• Ignoring the tiny orange, yellow and pink traces leaves slots blocked for no reason. Clear them opportunistically whenever a slot is free, instead of saving them all to the end.

Key Frames