--- title: Platform and challenge flow description: How warm-up tasks, phased storylines, clues, and guided challenges shape the qualifier. --- import WorkshopRecordingLink from '../../../../components/workshops/WorkshopRecordingLink.astro'; [CTF awareness session: CryptX 2.0](https://www.youtube.com/watch?v=kO-dMGd8CAM) ## Warm-ups and storylines The online qualifier includes general warm-up challenges and a multi-phase storyline. In the storyline, teams must complete one phase to unlock the next. Solved challenges may also contain clues or narrative details that help with later puzzles. [The briefing explains the phase system](https://youtu.be/kO-dMGd8CAM?t=1741), [how one phase unlocks the next](https://youtu.be/kO-dMGd8CAM?t=1647), and [how clues connect across challenges](https://youtu.be/kO-dMGd8CAM?t=1842). ## Guided challenges Some technical challenges are made up of consecutive questions. Teams need to complete every step to earn the challenge's points; the session says partial credit is not awarded for these guided tasks. [The guided format](https://youtu.be/kO-dMGd8CAM?t=1662) and [its all-steps scoring rule](https://youtu.be/kO-dMGd8CAM?t=1690) are described in the recording. [Continue to scoring, hints, and tools](/docs/ta/workshops/ctf-awareness/scoring-hints-and-tools)