How to make an origami menko out of single square paper

(page 3)

3rd picture of origami menko out of single square paper

03.

Apply the vertical "mountain-fold" of the step #2 and then unfold.

Prepare to apply a horizontal "gate-fold" and then unfold.

4th picture of origami menko out of single square paper

04.

Apply the horizontal "gate-fold" of the step #3 and then unfold.

Prepare to apply a vertical "gate-fold" and then unfold.