# misc/chest-mix
> Here's a minecraft world, the flag is on a piece of paper in the the chest by spawn, it's hard to miss. Version 1.20

We are given Minecraft world save file, look for ways to parse this. I found a chunk extractor script that can extract contents from a region save. From there we can grep each region for any minecraft chunk/block we want.

https://github.com/sudofox/minecraft-utils/blob/master/region-parser/region-parser.sh

```bash
# unzip the save file and under regions run the script for each .mca file
./region-parser.sh r.0.-1.mca
./region-parser.sh r.0.0.mca
# ...

# after unpacking all we can check each content if it contains chest / paper
find . -name "*.nbt" -exec grep minecraft:chest {} \;
find . -name "*.nbt" -exec grep minecraft:paper {} \;

# we can just search for the flag
find . -name "*.nbt" -exec grep -a bctf {} \;

```

**flag**: bctf{ch1st_ch2st_ch3st_ch4st_ch5st}