Inspired by this puzzle and this one, I've made my own Bongard. The goal is to find the rule that the pictures on the left follow, but none on the right follow.

enter image description here

up vote 2 down vote accepted

Supposing that:

The points are nails of infinite hight, which hold the objects they are on.

Then

All the left objects can be separated of such sort that no "lines" cross each other.

But

Not clear for left-bottom-left

  • 1
    Good job, you got it! To be more precise, you may assume that all lines may pass through each other, but lines may not pass through nails. – Riley May 3 at 12:24

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