What Is a Triangle Choke in BJJ?

Understanding the Triangle Choke

The triangle choke (called sankaku jime in judo) is a blood choke performed using your legs. In Brazilian Jiu-Jitsu, it is considered one of the "big three" submissions alongside the armbar and the rear naked choke.

The choke works by trapping one of your opponent's arms and their neck between your legs. One leg crosses over the back of their neck while the other locks under the knee of the first leg, forming a figure-four shape that resembles a triangle. Your opponent's own trapped shoulder presses into one side of their neck while your inner thigh compresses the other side, cutting off blood to the brain through the carotid arteries. This is what makes the triangle a blood choke rather than an air choke, and it is why the tap comes quickly once it is locked in properly.

Step-by-Step Triangle Choke From Guard

The closed guard is the most common position to set up the triangle choke. Here is the fundamental sequence:

1. Control posture - Break your opponent's posture by pulling their head down with your hands behind their neck or on their collar. When they are bent forward, their arms are easier to isolate.
2. Isolate one arm - You need one arm in and one arm out. Push one arm across to the opposite side of your body while controlling the other arm at the wrist or elbow.
3. Shoot your legs up - Open your guard and throw one leg over the back of their neck on the side where their arm is out. The other leg stays on the hip of the trapped arm side.
4. Lock the triangle - Cross your ankle behind the knee of your top leg, forming the figure-four lock. Pull their head down toward you.
5. Angle and squeeze - Cut a slight angle by rotating your body toward the trapped arm side. Squeeze your knees together and pull down on their head for the finish.

Keys to Finishing the Triangle

Many beginners lock up the triangle but struggle to finish it. These details make the difference between a tight choke and a position your opponent can survive:

• Angle is everything - Cutting your body at an angle (roughly 30 to 45 degrees) dramatically increases the pressure. If you stay squared up, your opponent can posture and create space.
• Pull the head down - Use both hands on the back of their head to break their posture. This tightens the choke and eliminates their ability to stack you.
• Squeeze your knees, not your ankles - The choking pressure comes from adducting your thighs (squeezing knees together), not from cranking your ankles. Relying on ankle pressure wastes energy.
• Control the trapped arm - Pull their trapped arm across your centerline. If it stays close to their body, it relieves pressure on their neck.
• Elevate your hips - Lifting your hips off the mat and into their neck adds significant finishing pressure.

Triangle Choke Setups

Beyond the basic closed guard setup, the triangle choke can be attacked from numerous positions:

• Open guard - Spider guard and lasso guard create natural arm isolation that leads to triangle entries.
• From mount - The mounted triangle is devastating. You trap one arm, step over the head, and lock the triangle from on top. Because of gravity and the top position, this version is extremely hard to escape.
• From side control - Transition to a north-south position and spin into the triangle as your opponent tries to turn in.
• Off a failed armbar - If your opponent pulls their arm free during an armbar attempt, that arm-in, arm-out configuration is perfect for switching to a triangle. This armbar-to-triangle transition is one of the most common combinations in Jiu-Jitsu.

Defending the Triangle Choke

Defending the triangle requires acting before it is fully locked. Key defensive principles include:

• Posture immediately - As soon as you feel legs climbing your back, stand tall and drive your trapped arm through. Good posture makes the triangle much harder to finish.
• Get both arms in or both arms out - The triangle requires one arm in and one arm out. If you can sneak your second arm inside or pull the first arm out, the choke cannot work.
• Stack and pass - Drive forward, stack your opponent on their neck and shoulders, and work to pass over the locking leg to escape to side control.

Why the Triangle Choke Defines BJJ

The triangle choke represents everything that makes Jiu-Jitsu unique. It allows a smaller person on their back to submit a larger opponent using only their legs. It requires no gi grips, making it equally effective in no-gi grappling, MMA, and self-defense situations. And it connects to an entire web of attacks: the armbar, omoplata, and sweeps all flow naturally from triangle attempts, making it a gateway to understanding the interconnected attack systems that define high-level rolling.