How the Iced Door works
An iced door is frozen shut. Clearing a set number of blocks breaks the ice around it.
It is one of the core obstacles you meet through the early and mid levels, usually alongside plain colored blocks and simple gates.
How to play around it
Chip the ice while the board still has cheap matches, so the door is free before you need it.
Like every obstacle in the game, the iced door never makes a level impossible. Every board can be finished without boosters, so if a route feels blocked, the answer is usually the order in which you clear the other colors, not the obstacle itself.
Where you meet it
The Iced Door typically starts appearing around Level 150 and stays part of the rotation from that point on. Boards that feature it become more frequent as the level numbers climb.
See it in action on the Levels 126–150 walkthrough index, or browse every mechanic on the mechanics guide.
Iced Door FAQ
What does the Iced Door do in Color Block Jam?
An iced door is frozen shut. Clearing a set number of blocks breaks the ice around it.
How do I deal with the Iced Door?
Chip the ice while the board still has cheap matches, so the door is free before you need it.
Which levels have the Iced Door?
It typically starts appearing around Level 150 and is used more often as levels get harder. Open the level walkthrough index to find a video for the exact board you are playing.