Colony Flow! Level 787 Walkthrough and Grid Clearing

To clear Level 787 in Colony Flow!, solve the long perimeter paths around the board's edges before routing the dense cluster of color nodes in the center. Connecting outer boundaries first preserves the central space required to link remaining pairs without blocking matching lanes.

Step-by-Step Board Clearing Strategy

To avoid gridlock and keep paths open for final matching sequences, approach Level 787 in this order:

1. Clear the Perimeter: Route edge-adjacent color pairs along the extreme outer boundary of the grid. Anchoring long lines to the exterior reduces the active puzzle space and keeps central channels open.
2. Anchor Restrictive Corner Nodes: Identify color nodes situated in the corners of the central cluster. Resolve these early using straight lines to prevent blocking neighboring paths.
3. Place Long-Distance Paths Next: Connect pairs that span large distances across the board before placing short paths. Long paths require clear corridors, whereas short connections can easily fit into smaller gaps later.
4. Maintain Buffer Spacing: Avoid drawing lines tightly against adjacent nodes. Leave one or two open cells between paths when possible, giving late-stage lines room to snake through the grid.
5. Complete Central Cleanup: Route the remaining short color pairs through the central corridors. If a final pair is blocked, reroute a single early line to open the needed lane.

Key Bottlenecks and How to Avoid Them

• Isolated Spaces: Drawing paths that circle empty grid cells creates inaccessible "islands." Keep routes wide to ensure every cell remains reachable.
• Diagonal Paths: Deviating into diagonal routes across the central cluster cuts off access for intersecting colors. Use straight, clean angles to preserve adjacent lanes.
• Premature Short Moves: Connecting easy, short-distance pairs early blocks long-range paths, often forcing a full level restart. Always reserve direct connections for the final step.