Colony Flow Level 687 Answer Key, Walkthrough & Solution
Level 687 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 687: tall green cactus in a flowered desert
Opening move: Send the massive green block to tackle the giant cactus. Final move: Remove the final scattered patches.
Board identity
tall green cactus in a flowered desert
The recorded palette is green, orange, brown, white, blue. Use the screenshot to confirm the placement of these colors before starting the first move.
Step-by-step solution
Ordered moves for the tall green cactus in a flowered desert
Send the massive green block to tackle the giant cactus
Send out white ants to clear the scattered stones
Reveal hidden tray items and deploy new colors
Unleash the orange ants on the mountain rocks
Unlock the restricted tray blocks by collecting keys
Clear the light blue sky at the top of the board
Remove the final scattered patches
Second-source check
Opening and finish confirmed separately
Opening: Send the massive green block to tackle the giant cactus. Finish: Remove the final scattered patches. 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 687 paints Robot with 182 tiles across 4 colors, split into 6 cubes in the tray. You have 5 waiting slots and two nest holes.
- Cyan: 72 tiles → cubes of 52, 20
- Green: 70 tiles → cubes of 46, 24
- Purple: 22 tiles → cubes of 22
- Cream: 18 tiles → cubes of 18
⚠️ 1 hidden “?” cube in the tray.
Spoiler: what they hide
Cyan 20
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 Cyan 20 cube.
- Send the Cyan 52 cube. Only ~27 of its 52 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Green 24 cube.
- Send the Green 46 cube. Only ~22 of its 46 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Purple 22 cube. Only ~14 of its 22 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
- Send the Cream 18 cube. Only ~16 of its 18 tiles are open at this point — park it in a slot and let the surrounding colors clear the rest of the way.
Finish without boosters for 3 stars and bonus coins. If the board jams anyway, a Shuffle or Vacuum booster is the cheapest way out.