Press each other like a cross knot.

Press each other like a cross knot.

Press each other like a cross knot.

Do single-sided pressing, single-sided pressing, red pressing, blue pressing and yellow picking.

Make a lateral pressure, choose one, yellow pressure, green pick, blue.

Do lateral pressure, choose one, blue pressure red pick green.

Do lateral pressure, choose one, green pressure yellow pick red.

Pass through the central hole and the blue line from bottom to top.

Pass through the center hole and the yellow line from bottom to top.

Do it from bottom to top, through the center hole and through the red line.

Pass through the central hole from bottom to top, and take off the knot from the hand through the plastic green line, and complete the four-line unarmed course of Niukou knot in the resource.