---
title: "Discussion on \"(english ver.) [HTB CTF Nightfall 2026 - Blockchain Track] Impossible: Hard Level\" | Hashnode"
description: "Discussion on \"(english ver.) [HTB CTF Nightfall 2026 - Blockchain Track] Impossible: Hard Level\". The challenge tells us that there is an on-chain reserve containing funds, but it is locked. Only an authorized relay user can withdraw from it, and the player is obviously not one of those users :v."
url: "https://hashnode.com/posts/english-ver-htb-ctf-nightfall-2026-blockchain-track-impossible-hard-level/6a44ceaa74ccdd686aac612b"
---

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# [(english ver.) \[HTB CTF Nightfall 2026 - Blockchain Track\] Impossible: Hard Level](https://s-0wn.hashnode.dev/english-ver-htb-ctf-nightfall-2026-blockchain-track-impossible-hard-level?utm_source=hashnode&utm_medium=feed)

The challenge tells us that there is an on-chain reserve containing funds, but it is locked. Only an authorized relay user can withdraw from it, and the player is obviously not one of those users :v.

Jul 1 · 6 min read · s-0wn.hashnode.dev  
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