Tutorial Help - Computational Logic (Points)

I just start to learn Dynamo. And I have problem with tutorial lesson.
I’ve attached some pictures.
I don’t understand why I have points only on the diagonal, not like in the video. (https://www.youtube.com/watch?v=rjiiy-yQFds)

Video’s name : 5 ComputationalLogic I /// and 2min55sec

Hi Alena, and welcome to the wonderful world of Dynamo! :slight_smile:
One thing you will learn about in the Primer and other tutorials is lacing.
read all about it here: http://dynamoprimer.com/en/06_Designing-with-Lists/6-1_whats-a-list.html

Try to set the lacing of the Point.ByCoordinates node to Cross lacing.