52 Blocks Technique 'Roll The Dice' by Sensei Mo

The hand motion of "roll the dice" is similar to pedaling a bike with your arms. When your opponent reaches out to strike or grab, you cycle so the leading edge of the circle formed by your moving fists goes downward. That brings your fists or forearms into hard contact with his limb, Professor Mo says.

"You break down the arm by hitting him near his wrist and farther up the arm. Then you hit his face with one or more backfists.

"You can also cycle up at the end. In that case, your first one or two hits will knock his arm down, and then you would reverse the cycle and come up to strike him under the chin."