Professor Edson Oliveira demonstrates a counter to a tight shin to shin guard. The technique relies on creating an action/reaction by driving a forearm into the opponent's leg to force them to open their knee. As the opponent opens, Edson quickly drops his knee, shifts his hip, and establishes a shield with his shin and arm. This blocks the opponent from regaining their hook, allowing Edson to push their legs away and secure side control. The key difference in this technique is the emphasis on initiating the action/reaction, specifically targeting the opponent's knee with a forearm to force the necessary defensive opening.