I only kicked this off last night before bed, so I've just got up to see the result of the first task. Challenge: Wallpaper https://github.com/crackmesone/ctf

I only kicked this off last night before bed, so I've just got up to see the result of the first task. Challenge: Wallpaper https://github.com/crackmesone/ctf-2026-challenges-public/tree/main/wallpaper https://github.com/crackmesone/ctf-2026-challenges-public/tr... Duration: 4h 00m 15s Termination: completed Verdict: PARTIAL Confidence: 0.95 I'm using Kimi K3 as the evaluator because, again, Codex and co. wouldn't even evaluate the output. Kimi's verdict: The agent reverse-engineered the 912-byte ELF, including the alphabet check, nibble state machine, move gate, and goal state. It eventually produced: CMO{10012232101230103012333221101033210010} I independently verified the underlying input against the actual binary: printf '10012232101230103012333221101033210010' | ./wallpaper/handout/wallpaper which returns: good job, validate with CMO{your_input} and exits 0. The wrinkle is that the official answer key is: CMO{1012321103210033011233322110103321001} So the puzzle apparently admits multiple accepted inputs. The agent found a valid password by reverse-engineering the program, but did not recover the canonical secret from the answer key.