By Masoud Hayeri Khyavi
Sometimes during practice, especially martial arts, a new idea comes to mind that one likes to try.
A long time ago, when I was training for a while in Tehran and in a Brazilian jiu-jitsu club, while training, when my opponent was trying to ruin my guard, an idea suddenly came to my mind and I immediately executed it and it worked very well. The idea was so good that one of the old students in the class asked me “where did you learn this technique?” And when I replied, “It was improvisational,” he gave me a meaningful look, and I do not know what he thought of himself…
I named this technique “Set Square” and the reason for its naming is the hand position when performing it, which you will see in the figures. I took these photos during the Corona (Covid19) period with my nephew “Yousef”, an interested and motivated Karate student. You may blame me that I applied this technique to a teenager? Well in fact, I did not find any other interested and ready martial artist during the quarantine to safely grapple with at home, even in ordinary clothes.

Let’s go to the technique:
Yousef grabs my collar in Figure 1 and wants to strangle his uncle over a trivial matter. As an experienced martial artist, I place my left foot next to Yousef’s groin so that he does not move forward, leaving my right foot behind his waist. While Yousef and I are trying to win the battle of the hands, with my left hand and from above, I hold Yousef’s left hand on my chest and pass my right hand under his right hand and take his wrist and stick to my chest. At the same time, with my left foot, I bring Yousef’s right hand close to his body and keep him unmoved so that he cannot execute his possible plan (Figures 1 and 2).


Well! Yousef watches over my hands, so I very insidiously place my right foot on the ground and in front of his left knee (Figure 3).

Let’s go back to the hands! I bring Yousef’s left hand close to his face with the elbow of my right hand, and while I hold his wrists to my chest.
In an instant, I place the elbow of my right hand on the elbow of Yousef’s left hand and take his left wrist and create a square and pass Yousef’s head through it! You may ask, is the left hand lying down in this position? No, because the left hand helps to bend the elbow inwards and then to maintain the curvature of Yousef’s hand at the same time as slipping the right hand elbow (Figures 4 and 6)

After Yousef’s jaw or neck is trapped in the depression of his left elbow, I lean to the right and, turn Yousef’s left hand and jaw to my right with my right hand, I push his left knee back with my right foot, and roll Yousef to my right, using the restraint left leg (Figures 5 to 6).



Well, now is the final stage of this hard battle between an old Jaguar and a young Jaguar. Finishing step is up to you; but I myself preferred to perform Osaekomi and control the opponent (Figure 8)

Do not worry about Yousef! I took care of him very carefully, as you can see in Figure 9, he refers to his uncle, me, in health.

Of course others may have discovered this technique too. If so let us know where, when and in which martial art, be it BJJ or Catch Wrestling or Chuk Kheh or whatever.
Author
Masoud Hayeri Khyavi
The author is a martial artist and academic researcher based in Iran.
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