CTF – [√-1 +1]CTF Server – Blinking Lights

The Challenge

The link directs you to a chat with only Black and White dots

The Solution

So space are black and dots are white.

First I thought it was more code. Because the title of the challenge is blinking light. But reversing it from morse with cybershef came up empty

Then Instead of space and dots I use B and L

Underneath I did 1 and 0

First I did nt notices the first one was black and the second one was white. So I came up empty. Then I copy and paste the chat and noticed the first was a 0

Run the binary code into cyberchef

And now we have the flag

Checking the flag

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