Colony Flow Level 21 Walkthrough

Colony Flow Level 21 introduces a checkerboard obstacle — several blocked cells scattered across the grid. Rather than one big wall, you face many small barriers. Route each color through the gaps between obstacles. The trick is to identify the 'corridor' pattern — usually diagonal or L-shaped — that lets multiple paths coexist. Level 21 teaches obstacle-scanning: spend 15 seconds reading the board before making any move.