Kmap 4 Variables: Min Sum of Products Homework

[illidari]

Homework Statement

Homework Equations

The Attempt at a Solution

I am trying to figure out how to handle writing the minimum sum of products for this picture. Am I allowed to create a square with the two in the bottom right with the two in the upper left?
Or do I separate them into groups of two?

Just want to make sure :)

 

[berkeman]

Homework Statement

Homework Equations

The Attempt at a Solution

I am trying to figure out how to handle writing the minimum sum of products for this picture. Am I allowed to create a square with the two in the bottom right with the two in the upper left?
Or do I separate them into groups of two?

Just want to make sure :)

It looks like they need to be separate terms. You can wrap horizonatlly or vertically, but I've never seen a diagonal wrap...