Ralph Gracie black belt Kurt Osiander is constantly making contributions to the field of Gentle Art Studies, and this time he brings us an arm attack stemming from a neck assault. Check it out, and be sure only to practice it under the supervision of a qualified Jiu-Jitsu instructor.
Well before the winning submissions of Fabricio Werdum (over all-powerful Fedor) and Anderson Silva (over Sonnen), your most complete magazine on Jiu-Jitsu already stressed the importance of the guard. Check it out, study it and learn.