Arrows define the rules
Each block can only move along the direction shown by its arrow, which determines the range of positions it can reach.
Boundary Color Edge Blocks belongs to the "path clearing / spatial matching" genre of puzzle games. The board is filled edge to edge with colored blocks of varying shapes, each carrying a directional arrow. Your goal is to slide blocks that share both a color and an arrow direction into adjacent positions so they clear.
Unlike typical match-3 games, there's no random piece drops and no combo-chasing under time pressure. You're working with a static but densely packed board, where every move changes the available paths for every other block. That makes the game closer to a spatial reasoning puzzle than a test of reflexes.
Each block can only move along the direction shown by its arrow, which determines the range of positions it can reach.
Only blocks that share a color and a matching direction trigger a clear when they meet.
The board has a fixed number of cells, so you need to plan your move order in advance to leave open paths for later moves.
Later levels introduce more irregular block shapes — L-shapes, T-shapes, and interlocking bars — which raise the bar for overall planning.
The browser version and the Google Play release share the same level design and visual style, so you can try it on desktop first and continue on mobile.
Levels start with a single direction and a handful of blocks, then build up to dense, multi-directional boards for more experienced players.
Some levels include a countdown timer, adding an extra layer of urgency for players who enjoy timed challenges.
Want to learn the rules first? Visit the How to Play page for a full illustrated walkthrough.