Food Wars! Shokugeki no Soma

When Soma arrives at the gate of the third challenge, the organizer of BLUE who is also the top of WGO, tells them that she has no expectations for the normal chefs like him. The underground chefs are to show their culinary skills in order to prove how powerful they really are. One of the chosen chefs takes out a cookery tool which turns out to be a chaisaw!? Soma and others witness unusual yet undeniable skills of the underground chefs. Are there any ways to counter them!?