Sweep Counter to the Knee Through Pass

The most insidious half-guard/guard pass ever invented: the knee through pass ...

Just. Met. Its. Match.

Courtesy of Saulo Ribeiro. Jiu Jitsu Revolution # 10.

The trick is to be quick. As soon as the knee goes through, you want to put your hook in.

From there, you grab the collar and sleeve (inside hand to sleeve, outside hand to collar). Wait for his momentum to go forward, then lift with the hook and roll on the inside shoulder, taking him head over heels.

With your grips in place, you do a "bus driver turn", lowering your inside hand and lifting your outside hand as you lift with the hook.