Colony Flow! Level 2720 Hard Puzzle Solution and Clearing Order

To solve Level 2720 in Colony Flow!, clear the outermost ant lanes before routing congested central corridors. Tapping interior ants prematurely causes collisions across overlapping intersection nodes and locks border ants behind occupied lanes. Clearing exterior units first opens buffer space along the board edges, which you can then use as bypass routes to untangle the middle rows.

The Outside-In Clearing Order

Level 2720 concentrates choke points in the middle two rows, where crossing paths and adjacent destination nests block movement. Solve the grid in three phases from the edges inward:

1. Clear Outer Flanks First

Scan the top and bottom borders for ants that face outward or run parallel to the perimeter without crossing central junctions. Dispatch these units into their matching color nests immediately. As these ants exit, they vacate the outer border tiles, creating wide turning angles for ants trapped deeper in the grid.

2. Route Transition Corridors Into Border Space

Once edge tiles are clear, examine the intermediate lanes directly bordering the center. Identify units that are held up by only one blocking ant rather than multi-layered clusters. Route these intermediate runners out toward the newly opened perimeter bypasses instead of forcing them across the crowded middle.

3. Untangle the Center Cluster

Work through the high-density center lanes sequentially by color:

1. Trace each trapped ant backward from its target nest to locate its immediate blocker.
2. Release the single-blocker path out to the cleared perimeter tracks.
3. Flush one color track completely before starting an intersecting track to avoid crossing collisions.
4. Send the remaining core ants along the outer bypass loop rather than cutting straight through central intersections.

Common Collision Mistakes to Avoid

Most failed attempts on Level 2720 stem from improper timing at shared choke points. Watch for these failure triggers during your run:

• Tapping central ants first: Activating inward-facing units at the start of the level creates an immediate three-way gridlock across the central corridors.
• Simultaneous releases into shared lanes: Even small speed differences can cause trailing ants to collide if an ant pauses momentarily at a sharp 90-degree turn.
• Clipping proximate nest funnels: Releasing an ant into a nest while an adjacent entrance funnel is still processing another ant can cause the incoming unit to stop short in live traffic.
• Cutting through the center late: Always take the longer, open perimeter paths for final departures rather than taking short, crowded cuts across the core.