Beholder Antimagic Ray vs Wiz Antimagic field

[Frostbiter01]

Consider the Beholder has 10 eye rays, four quarters for them to cover, and a max of three in any quarter. Do the math. Some eyes need to be able to cover more than one quarter.

You want a rationalization? Eyes are on flexible stalks. They can reach up, out or down, twist and face just about any direction, over, under or around the Beholder's body, regardless of which way that body is facing.

Yeah this goes back to my question do you have to plan the eyes out and where they are. Seems like you are saying no, that the eyes are longer and flexible enough to strike the 4 sides along with up and down. It is just a limitation on the monster. This also explains why someone coming from above is not subject to 10 rays but still 3 according to the rules.