Use the power grip to break your opponent's posture and establish a deep grip with your strong hand.
This is a good point from which to push through with your hand, change angles and use your free hand over your opponent's shoulder to complete the choke. However, sometimes this is not possible due to your opponent's defence.
So this is an alternative choke option that you can use. Use your free hand over their head to control their posture and grab your own forearm. The simply complete the choke by applying pressure with your own forearms.
Pay attention to the details as explained by Sensei Douglas Santos to understand how this choke works.
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