MISTasks/Technical/picoCTF/t1/q3.md

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2024-10-30 23:44:40 +05:30
# Question: Ready Gladiator 0
2024-10-30 23:44:16 +05:30
### Key: picoCTF{h3r0_t0_z3r0_4m1r1gh7_e1610ed2}
**Core concept: CoreWars**
Core War is a 1984 programming game created by D. G. Jones and A. K. Dewdney in which two or more battle programs (called "warriors") compete for control of a virtual computer. These battle programs are written in an abstract assembly language called Redcode. - (Kagi summary)
Looked up what CoreWars is, and it is essentially a 1v1 game with players controlled by its own syntax.
The only player that will always lose will be one who commits suicide; which is done using `DAT 0,0`.
```zsh
nc saturn.picoctf.net 51554
Submit your warrior: (enter 'end' when done)
DAT 0, 0
DAT 0, 0
end
end
Warrior1:
DAT 0, 0
end
Warning:
Missing ';assert'. Warrior may not work with the current setting
Number of warnings: 1
Rounds: 100
Warrior 1 wins: 0
Warrior 2 wins: 100
Ties: 0
You did it!
picoCTF{h3r0_t0_z3r0_4m1r1gh7_e1610ed2}
```
Output: `picoCTF{h3r0_t0_z3r0_4m1r1gh7_e1610ed2}`