Fuzzy search positions, transitions (sweeps, passes, escapes, takedowns…), submissions, systems, principles and learning notes by name or alias. Partial English names work; common Korean terms are translated.

Full detail for one transition or submission: outcomes and probabilities, conditions, key principles, setup, execution steps, common counters, common errors, training progressions, defender recognition cues / defensive options / escapes, variants, related content, safety and video clips. Use sections to fetch only what you need.

Detail for one position, for the top and/or bottom role: overview, state properties and metrics, key principles, decision tree, common errors, drills, the technique menu with attempt weights, related positions and clips.

Lists the transitions and submissions that can be attempted from a position in a given role, most commonly attempted first, with success rate and where each outcome (success / failure / counter) leads.

Finds a few shortest routes from one position to another using only successful technique outcomes (e.g. Half Guard bottom → Back Control top). Each step lists the techniques that achieve it. The target may also be a submission (e.g. "Armbar"): routes then end at a position where it can be attempted.

Lists entries of one kind with a one-line summary: systems (game plans / courses), principles, learning notes, positions or submission families. Optional text filter.

Full content of a system (game plan, with study guide and sources), a principle (component skills, decision framework, errors, training approaches) or a learning note.

Which BJJGraph version is loaded (commit, fetch date, counts), how to refresh it, and the data licence.