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Breaking the door1 hint left
Looking for even more stuff to destroy? Look no further than the chamber's first door.

How do I break it?

After retrieving the cube and using it to activate the button, all you need to do is pick the cube up again and walk away.

When you're far enough, the door will blow open in a shower of sparks (and the button will stop working, too!)

Guide help

This is the low-spoiler guide for "Breaking the door" puzzle in Portal. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.

Up to "Trivia"
Hints written by Kieron West
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