# Evlz CTF 2019 – Don't Blink
* **Category:** Misc* **Points:** 100
## Challenge
> Do you have persistence of vision? Well try it out with this file
## Solution
The file is a GIF image which shows several frames containg parts of the final flag.
![persistant.gif](https://raw.githubusercontent.com/m3ssap0/CTF-Writeups/master/Evlz%20CTF%202019/Don't%20Blink/persistant.gif)
The GIF must be split (e.g. using [https://ezgif.com/split](https://ezgif.com/split)) and then each frame must be merged in the same final image, ignoring white background.
The merge operation can be performed via script or using an image manipulation program (*MS Paint* can be fine).
The final image will be:
![flag.png](https://raw.githubusercontent.com/m3ssap0/CTF-Writeups/master/Evlz%20CTF%202019/Don't%20Blink/flag.png)
Hence, the flag is:
```evlz{catch_me}ctf```