Colony Flow! Level 200 Board Clearing and Pathing Guide

To clear Level 200 in Colony Flow!, build your initial paths along the outer edges of the grid, lock down the colors with the most restricted options first, and keep central tiles open for flexible crossover lines. Success requires maintaining continuous access to every open square so no single tile becomes walled off before all paths are complete.

Route Outer Edges and Corners First

Starting your paths along the perimeter prevents your lines from boxing in open grid space early in the puzzle. Corners are naturally constrained points, so addressing corner colors right away establishes a outer boundary that narrows the remaining play area cleanly.

Anchor corner positions: Connect segments that touch the outer boundary first so central pathways remain open for subsequent colors.
Keep outer corridors clean: Avoid cutting directly across the grid from a corner unless no outer edge route exists.
Shrink the playable grid systematically: Working inward from the perimeter helps keep remaining open spaces contiguous.

Sequence Paths by Route Flexibility

Not all color paths on Level 200 have equal movement options. Some colors have only one or two viable connections across the grid, while others can bend through multiple open tiles. Draw the most constrained paths first to establish fixed boundaries for flexible colors.

Priority Level	Path Constraint Type	Recommended Action
High	Restricted options (1–2 routes)	Connect immediately to set grid boundaries.
Medium	Central converging paths	Snake paths tightly around established lines.
Low	Open, multi-route colors	Use leftover tiles to finish final connections.

Reserve the Center for Complex Intersections

The central tiles on Level 200 act as a natural bottleneck where multiple distinct colors must cross without overlapping. Running straight paths directly through the middle limits room for maneuvering later in the puzzle.

To maintain central grid flow:

Bypass straight runs: Route straight lines around the outer edges whenever possible.
Curve congested lines: Add gentle curves or bends to your central paths to free up adjacent tiles.
Leave exit corridors: Ensure every path entering the center has a clear tile reserved for its exit route.

Avoid Trapped and Isolated Tiles

A primary failure condition on Level 200 is isolating an empty tile so that no color line can reach it. Every step should preserve an open route for unplaced colors.

Before committing to a path segment, verify these three conditions:

Neighbor check: Look at every adjacent empty square to ensure your line does not create a enclosed single tile.
End-state visual check: Trace where unplaced colors must travel to reach their destination before blocking an intersection.
Route conservation: Take a slightly longer curving path along an edge if a shorter path through open space cuts off access to an uncompleted region.