The leg knot — known in Russian sambo as the "game over" position — is a double-leg entanglement in which one of the opponent's ankles is pinned under your armpit while your legs weave over their trapped leg and through to hook their opposite shin, tying both of their legs together. Harder to enter than single-leg entanglements, it repays the work with control of both legs at once and the full menu of leg submissi...