411

The 411 is known by numerous different names, including inside ashi, or even inside sankaku, as another variation. These all point towards the area of limbs that it focuses on controlling, that's from a unique lower entangling position. A setup that involves locking two legs tightly against and also wrapped or interwoven around your opponent's far leg to give optimal position and access for high-end or complicated heel-based limb control systems. These can easily dominate leg-focused attacks by creating specific grip types that trap their entire leg in a secure 'figure-four' based locking action around the primary base position at their thigh. When utilized fully, you can lock very precisely, making use of those grips, which all enable multiple entry points, such as to transition or sweep to more dangerous leg submission techniques. From the secured locations, it also prevents a sweep from their positioning and other control areas that open.