### **Stack Pass Technique**
The Stack Pass is a fundamental Brazilian Jiu-jitsu guard pass used to transition from the opponent's guard to a dominant position by stacking their legs over their head to neutralize movement. It is effective against both the **Closed Guard** and **Open Guard**.
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### **Steps to Execute the Stack Pass:**
#### **Position: Closed Guard**
1. **Achieve Posture in Guard:**
- Begin by keeping a strong posture. Sit back on your heels, bringing your chest up and maintaining a straight back. Push your hips forward.
- Keep elbows inside to avoid being trapped and grip their gi pants at the waist.
2. **Open the Guard:**
- Drop an elbow to your opponent's inner thigh to pry open their legs. Alternatively, use a knee to stand up and break their guard with leverage.
3. **Control the Legs:**
- Once the guard is open, slide both hands under their thighs and grip their pants or belt.
- Pull their hips up by lifting and stacking them on their upper back and shoulders.
4. **Initiate the Stack:**
- Keep pressure by driving your chest forward and compressing their knees toward their chest, limiting their movement.
- Pin their knees towards their head to destabilize their base further.
5. **Pass the Guard:**
- Move around their legs by stepping to the side and underhooking one of their legs with your arm.
- Simultaneously, walk your feet towards their head while pushing their knee past your head, clearing their legs.
6. **Secure Side Control:**
- As you pass, position your head to the mat near their ear for control and apply chest pressure on their upper body.
- Release their legs and hug around their head or the opposite shoulder to establish a secure side control.
#### **Position: Open Guard**
- The Stack Pass can also be initiated from Open Guard by controlling the feet and transitioning into a stack once a foot is trapped.
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### **Important Details:**
- **Maintain Control:** Keep their hips controlled throughout the pass by diligently maintaining the stack, limiting their movement.
- **Apply Pressure:** Constant forward pressure is pivotal to prevent recovering guard.
- **Use Hips Wisely:** Your hip movement is crucial. It should be pressing down to pin them effectively.
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### **Japanese Name:**
- The exact Japanese term for the Stack Pass is not widely recognized, but it might be referred to within the broader terminology covering guard pass techniques like "**Guard Passu (γ¬γΌγγγΉ)**."
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