Builder: Mission has started .

Architect: start with a 5x4 blue rectangle

Architect: don't fill it in

Builder: place blue 1 1 -2, place blue 1 1 -1, place blue 1 1 0, place blue 1 1 1, place blue 1 1 2, place blue 0 1 2, place blue -1 1 2, place blue -2 1 2, place blue -2 1 1, place blue -2 1 0, place blue -2 1 -1, place blue 0 1 -2, place blue -1 1 -2, place blue -2 1 -2

Architect: pick a side to stand on

Builder: south side

Architect: third block away from you on the left side is actually yellow

Builder: pick blue 0 1 -2, place yellow 0 1 -2

Architect: and fourth block to the right on your side is yellow

Builder: pick blue -2 1 1, place blue -2 1 1, pick blue -2 1 1, place yellow -2 1 1

Architect: now fill in the blocks right next to the two yellow blocks as yello

Architect: and the rest of the middle is blue

Builder: place yellow -1 1 1, place yellow 0 1 -1, place blue 0 1 0, place blue 0 1 1, place blue -1 1 -1, place blue -1 1 0

Architect: build a yellow block on top of each edge yellow block

Builder: place yellow 0 2 -2, place yellow -2 2 1

Architect: and then a yellow block out of the rectangle next to each of those

Builder: place yellow -3 2 1, place yellow 0 2 -3

Architect: that's it !