1. If the knee faces inward, half foot grip is difficult. in this case, you put the leg over, and look for belly down finishes.
2. one hand grip leaves your other hand to fight. go for one hand belly down finishes if the grip cant be made correctly.
3. pin the knee with one foot if possible, though you will still get the tap as you slide the knees out and make your spine flat as you make your head high. the leverage is that great.
4. roll with the opponent inward or outward, just put your leg over the direction and roll

General decision tree:

1. Get a good half foot grip
2. if you cant, go belly down, fall to the outside if knee outward, fall to the inside if knee inward.
3. if opponent rotates foot to prevent half foot grip, pull your opponent toward you by cupping ur non grip hand behind ur opponents knee, and falling backward. then your leg over to belly down

to prevent opponent from planting their foot: elbow near your hips, and your knees in front to prevent that. you can either have inside wedge or butterfly ashi. Best method is to shrimp out, and have inside wedge. use it to get half grip, then into butterlfy ashi

1. If opponent tries to defend by standing up and placing the foot on the ground(knee facing outwad), you hook your right leg behind their gripped leg, your other leg around the calf, placing your feet behind their knee. Then get your half foot grip as you push the knee with ur other hand. then lock up your grip, rotate your hip outward like shoulder trying to touch ur hip.
2. But what if the opponent stands up with their knee inward: this is where short ankle lock shines. make the triangle and finish. finish by taking your right elbow to your right hip. your opponent can still drive forward and plant the foot once you have that triangle grip. ONLY if your knee face outward. push with your leg and dont let ur knee face outward.

What if despite all these efforts opponents stands up and puts their weight on the foot?

1. establish dela riva with your elbow to the hip. the other leg should be hooked to the other leg to prevent opponent from backing up
2. go for a tripod? kind of sweep.
3. Caio terra ankle lock

But what if opponent falls to the wrong hip?

-If you initiate first, the opponent will fall to the right hip.

-switch between caio terra to other forms we covered earlier

AI summary of the whole thing: Ankle Lock Decision Tree

START: Master Decision Point — Opponent’s Knee Direction

Everything branches from which way the opponent’s knee is facing, because it determines which leg controls, whether half-foot grip is realistic, and which finish family you should default to.

Opponent's knee direction?
│
├── KNEE OUTWARD  → Inside leg controls
│                    Half-foot grip is EASIER to keep
│                    Default plan: standard half-foot grip → figure 4 → finish
│                    If forced off the grip: fall to the OUTSIDE, go belly down
│
└── KNEE INWARD   → Outside leg controls
                     Half-foot grip is HARD to maintain
                     Default plan: switch to elbow grip → leg over → triangle
                     If forced off the grip: fall to the INSIDE, go belly down

---

Branch A — Knee Faces Outward

1. Control leg: inside leg.
2. If opponent spins outward: butterfly ashi, inside foot on/over their hip (alt: outside foot on hip, inside foot elsewhere).
3. Grip: standard half-foot grip is available and effective here.
4. Finish path:
   • Get grip → lock figure 4 (or preferred grip) → spread knees → sprawl.
   • One-hand grip only: free hand posts, head high, sprawl.
   • Two-hand grip: base on your head, hollow-body posture, sprawl.
5. If opponent stands and plants the foot (knee still outward):
   • Hook your leg behind their gripped leg, other leg around the calf, feet behind their knee.
   • Re-establish half-foot grip while pushing their knee with the free hand.
   • Lock grip, rotate hip outward (think: shoulder reaching toward your own hip).
6. Recommended default if things get scrambly: go belly down — leverage is so strong here that even a poor grip finishes.

---

Branch B — Knee Faces Inward

1. Control leg: outside leg, placed over opponent’s leg for downward pressure.
2. If opponent spins inward: outside leg over their leg, press down.
3. Grip: half-foot grip is difficult — switch to grabbing-elbow grip.
4. Finish path (primary):
   • Leg over → lock triangle.
   • Finish by driving your elbow to your own hip.
   • Caution: opponent CAN still drive forward and plant their foot through the triangle — but only if their knee turns outward. Counter: push with your leg and don’t let their knee turn outward.
   • If opponent turns while triangled → go belly down (2-hand grip recommended, same mechanics as Branch A’s belly-down finish).
5. If grip still can’t be made / triangle not available:
   • Leg over → hunt belly-down finish instead.
   • One-hand grip → free hand fights/frames, finish from one-hand belly down.
   • Pin the knee with your foot if possible (not required — you’ll still get the tap by sliding knees out + flattening your spine + head high; leverage alone is enough).
   • Roll with the opponent’s rotation — whichever way they roll, your leg goes over in that same direction.

---

Short-Lock Finish (situational, either branch)

Triggered by opponent’s hip position, not knee direction:

Opponent's hips on the floor?
│
├── YES → put inside leg over opponent's knee (short knee finish)
│
└── Hips elevate → switch to CLOSED LOOP TRIANGLE
                    (half grip not required here — this version is stronger)

Rule of thumb: short lock isn’t always superior — mix short-lock and belly-down/triangle finishes based on what the opponent gives you.

---

Grip Mechanics (applies inside every branch above)

Building the grip:

1. Elbow deep.
2. Half-foot grip: push with hands, hollow your body out — only half the foot should show from behind, ankle bone visible, no daylight.
3. Elbow tucked as close to/inside your hip as possible.
4. Pinch knees together.
5. One-hand grip: let your body follow if they try to limp out → once knees pinch, add figure 4 for a tight grip that no longer needs to follow.
6. To finish: don’t arch back — move your elbow to the centerline. (Elbow-to-centerline is the single most important detail throughout.)

Grip type tradeoffs (test to find what works for you):

Grip	Push?	Pull?	Finish pressure	Risk
Figure 4	Yes	Yes	Weaker (centerline harder to reach)	—
Grab own elbow	No	Yes	Very high	Foot can slip out
Bicep figure 4	No	Yes	Better than plain figure 4	—

Transitioning Achilles grip → half grip:

• You cannot push from an Achilles grip — it just slides.
• To convert: use an open hand or figure-4 hand to push, combine with your hooked leg + hollow body, and scoot out — do all three together.
• Sequence detail: pinch knee first (while still in Achilles grip) → hook your leg → scoot back → hollow your body.

---

General Master Sequence (top-level flow, any scenario)

1. Attempt half-foot grip.
   │
   ├── Got it → proceed to grip mechanics / finish per Branch A or B
   │
   └── Can't get it → go belly down
         ├── knee outward → fall to the OUTSIDE
         └── knee inward  → fall to the INSIDE

2. If opponent rotates the foot to deny half-foot grip:
   → cup your non-grip hand behind opponent's knee
   → pull them toward you, fall backward
   → leg over → belly down

Preventing opponent from posting the foot (defensive framing):

• Keep elbow near your hip, knees in front of opponent.
• Use inside wedge or butterfly ashi to block the post.
• Best sequence: shrimp out → establish inside wedge → half grip → transition to butterfly ashi.

---

If Opponent Fully Stands and Weights the Foot

Last-resort escalation when everything above is being defended:

1. Establish De La Riva, elbow to hip; hook your other leg to their other leg
   to stop them backing away.
2. Look for a tripod-style sweep.
3. Fall back to a Caio Terra ankle lock.

If opponent falls to the “wrong” hip:

• If you initiate the sweep/entry first, opponent falls to their right hip.
• From there, switch fluidly between Caio Terra entry and the earlier grip/finish sequences (Branch A / Branch B) depending on resulting knee direction.

---

One-line summary of the whole system

Read the knee → pick control leg + grip family → build half-foot grip with elbow deep & tight, or bail to belly-down/triangle if denied → finish by driving the elbow to centerline, not by arching back → escalate to De La Riva / Caio Terra only if opponent fully weights the standing foot.