Half guard
Where a butterfly pass lands. Small guard, knees close — half guard treated as its own honest problem.
Survival
Knees-to-chest bottom work
From half-guard bottom, knees to the chest to deny the crossface and the flattening — the compact base that survives the pass.
Knees-to-chest rule
The same rule the moment you land in half — small guard, knees close, nothing thrown at the chest.
Underhook, block the arm
From half guard, take the underhook and block their other arm so there is no head control straight away. Do not push on the hip — get into the fight.
Escapes
Coming soon.
Transitions
Pass to half, not to mount
You do not pass butterfly to mount. You pass to half guard — then half is its own honest problem.
Sector 2 lockdown — electric chair
Both feet between theirs, second foot under. Push the outside of the arm, sit up on your palm, look away, punch down, hips forward.
Keep the lockdown until you get up
Sitting up, do not give up the legs. With the lockdown on they cannot fight with their feet, and their hands are busy stopping the sweep.
Submissions
Pull up, knee bar
Hand under the thigh, pull them up, knee low between your thighs, foot over the heel as low as it goes, pinch the knees. Bridge slowly — it comes on fast.
Every cell here is free to read. The working notes behind them come from class, over in Mat Notes.