Every challenge is generated fresh, ELO-matched to your skill vector, and mutates when it gets too easy. Pick a target or a ticket, work it end-to-end.
Red for offence, Blue for defence, Purple for both. Same ELO, same skill vector, one login.
No writeups, no cached solutions, no LLM shortcuts. Every sandbox is unique the moment it spawns.
A 13-axis skill vector. The matchmaker serves the next challenge where you'll struggle productively.