Color Block Jam Gates and Exits: Plan the Route Before Moving

Start with the exits

The official rules say each block must go to its matching colored door. On a dense board, the door is often the more useful starting point: identify its approach lane, then work backward to the block that needs it.

What if a door changes?

Some Color Block Jam obstacles open, close, or switch as other blocks are removed. Treat each gate as a stateful constraint. Before sending a block through, ask whether the action will leave the next required color with an open route.

A route checklist

Record the next exit, the blocker before it, and the empty space required to stage the block. Confirm those facts at the source checkpoint. The Level 275 solution demonstrates this style with a matching opening layout and timestamped checkpoints.