Colony Flow Level 51 Answer Key, Walkthrough & Solution
Level 51 Video Walkthrough
Watch the full clear first, then use the written checkpoints below for each move. Want to practice first? Play Colony Flow free in your browser ↗
Level-specific solution
Colony Flow Level 51: sunrise over green hills with a yellow key
Opening move: Clear the initial grass and outer sky edges. Final move: Mop up the final scattered picture tiles.
Board identity
sunrise over green hills with a yellow key
The recorded palette is green, light blue, yellow, black. Use the screenshot to confirm the placement of these colors before starting the first move.
Step-by-step solution
Ordered moves for the sunrise over green hills with a yellow key
Clear the initial grass and outer sky edges
Push deep into the left hill to grab the yellow key
Strip away the newly unlocked light blue sky sections
Dismantle the heavy black outlines
Send the connected yellow boxes from the tray
Clear the remaining thick green hill sections
Mop up the final scattered picture tiles
Second-source check
Opening and finish confirmed separately
Opening: Clear the initial grass and outer sky edges. Finish: Mop up the final scattered picture tiles. Its 7board-specific moves are listed above; the picture name and palette come from the other reference page.
Sources reviewed: primary level guide and independent cross-check.

📋 Written practice guide (web version)board preview, color breakdown & loading order for the playable web level
Board Preview
What You're Up Against
Level 51 paints Rainbow with 318 tiles across 5 colors, split into 14 cubes in the tray. You have 5 waiting slots and two nest holes.
- Coral: 80 tiles → cubes of 28, 26, 20, 6
- Yellow: 72 tiles → cubes of 31, 29, 12
- Violet: 62 tiles → cubes of 39, 16, 7
- Forest: 56 tiles → cubes of 29, 27
- Blue: 48 tiles → cubes of 31, 17
⚠️ 2 hidden “?” cubes in the tray.
Spoiler: what they hide
Blue 31, Blue 17
🔒 1 locked cube — free the cube above them before they can be picked.
Step-by-Step Solution
This loading order was computed from the web level layout with a reachability-first strategy: always feed the ants colors they can actually reach, and never let all 5 slots fill with blocked colors. Tap hidden “?” cubes only when you have slot room to absorb a surprise color.
Load the cubes in this order, letting the ants work between picks. Unless noted, a cube's tiles are fully reachable when you send it.
- Send the Blue 17 cube.
- Send the Violet 7 cube.
- Send the Coral 6 cube.
- Send the Forest 27 cube. Only ~24 of its 27 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Forest 29 cube. Only ~20 of its 29 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Violet 16 cube.
- Send the Violet 39 cube. Only ~25 of its 39 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Coral 28 cube.
- Send the Coral 26 cube.
- Send the Yellow 12 cube.
- Send the Yellow 29 cube. Only ~23 of its 29 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Yellow 31 cube. Only ~26 of its 31 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Blue 31 cube.
- Send the Coral 20 cube.
Finish without boosters for 3 stars and bonus coins. If the board jams anyway, a Shuffle or Vacuum booster is the cheapest way out.