Both in hidari gyakuhanmi: Uke grabs both your wrists and you want to do a tai-no-henko exercise. You can do the nagare version whereby your left hand goes low and near your hara and your right hand raises and your palm is toward Uke‘s face.

For static, you want to remove one of Uke‘s hands – the right hand. First, extend both of your arms slightly toward the right (the direction of Uke‘s shikaku). This will give you leverage and some protection for what is next. Now, both of your hands should be alive and not dead with the bottom hand sensing if he is about to let go or not. When Uke is slightly extended toward his shikaku, you can perform a one-hand nikyo dosa using your right hand and its tegatana. As soon as Uke‘s grip is broken and he is still extended, proceed to do a basic tai-no-henko.

A variation from static is to use one hand to hit the other hand’s wrist to shear off one of Uke‘s grips. The preferred way is the nikyo dosa above, however.