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The tenth board is a dense pixel-art castle with a brown foundation, green side trees, white door details, orange accents, red lower walls, pink towers, and dark-purple roofs. Large block values and hidden boxes make it a planning challenge: open the bottom and sides before sending ants toward the tall structures.
Brown and green are the access colors. Their job is to create the lower and outer lanes used by every taller part of the castle. The objective is to keep those lanes active while reserving space for hidden-box reveals.
Start brown and let it open the broad base of the castle. Do not add a group of high-count tower blocks yet; the foundation route is the space that makes later choices safe.
Use green once the lower edge is working. The trees create side lanes that eventually let ants reach the towers and roof without relying on the center alone.
As brown and green open the tray, inspect hidden boxes before committing a new color. White doors and orange details should enter a slot only when their matching lower-castle areas are exposed.
Move into red after the foundation and door paths have made a visible opening. Red clears the next major layer and prepares the central towers for their larger pink blocks.
Load pink in a controlled rhythm after red has thinned the walls. Wait for an active pink block to make progress before adding another, so a hidden-box reveal never finds the entire queue occupied.
Use newly revealed green, white, or orange blocks for areas that are already open. This is the cleanup phase for the castle body before the roof colors become the only difficult targets.
Use dark purple for the highest roof points after side lanes and towers are open. At this point the castle should have several open approaches, so the last roof blocks can complete without a traffic bottleneck.
This level combines the key lessons from the first set: clear the outer shell, expose information before reacting to it, and do not fill every slot with slow blocks. The tall roof becomes straightforward when the lower foundation and side lanes are already empty.
The main failure is loading several pink tower blocks before the red walls have opened. If pink numbers are not falling, reset to the brown foundation and green-tree opening. Keep one slot clear before revealing or using a hidden-box color.
Stagger them. Pink has a broad target after the red walls clear, but loading too many long-running blocks removes the room needed for a reveal.
The roof points are far from the nest and depend on clear sides and towers. Opening the lower castle first gives dark-purple ants reliable paths upward.
Return to the all Colony Flow levels directory or compare hidden-box timing in the Level 9 avocado walkthrough.