I use Blender 2.40 and am learning using the older Blender 2.3 guide which is not proving to be a problem.
However, what I am having difficulty with is the following:
Subdivide once so now it is ‘4’
B Box select two left side cubes
X to remove using Vertices selection
Now when I look at the two remaining boxes on the right side, the cube is hollow on the left side where I removed the two cubes.
Appreciate any help, thank you.