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Jiu-jitsu

A personal reference of the jiu-jitsu I know. Verbatim source material, my own annotations, and a graph that slowly densifies.

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This is the documentation of my jiu-jitsu. Same rule as software documentation: only what already exists. If a move has a page here, I've embodied it. If a position has a page here, I've passed through it enough times to describe it. If an instructional is in sources/, I'm learning from it right now or have.

There's no to-do list here. No roadmap of moves I plan to learn. No "currently drilling." That work happens in class, on the mat, in my body — not on a page. When a move becomes mine, it earns a page. Until then it doesn't exist here.

How I use it

I open this page when I'm at the gym and my body has forgotten something my notes remember. I scan the page for the position I'm in, find the relevant move, read the three-line cue. If the words aren't enough — and they often aren't, because movement resists words — I click the timestamp and watch the thirty seconds of video that put the move in my body the first time. Then I go roll.

The graph, and where it comes from

Positions are nodes. Moves are edges. A move page declares where it starts (fromPosition) and where it ends (toPosition). Position pages list the moves that enter and leave them. Click any move; land on the position it produces; see every move I know from there; click one of those; keep going. That's the whole site's geometry when I'm done building it.

At white belt the graph is sparse and lonely. At purple it has clusters and bridges. At black belt — if I get there — it's densely cross-hatched and unmistakably mine, because no two practitioners walk the same path through the same techniques in the same sequence.

A position with no outgoing moves isn't a gap in my documentation. It's a hole in my game. When I see one, I know where to point my attention next.

What's here right now

Credits

Material under sources/only-way-out/ is transcribed verbatim from the instructional by Brian Glick, a black belt under John Danaher. Material under sources/foundation-of-offense/ is transcribed verbatim from the instructional by Gordon Ryan (Danaher / B-Team lineage). The teaching is theirs; the language, examples, and mental models are theirs and Mr. Danaher's. The annotations that appear below the source material — in my voice — are mine.