Builder: Mission has started .

Architect: We 'll start with a 2x2 square of red bricks

Builder: place red 1 1 0, place red 0 1 0, place red 0 1 -1, place red 1 1 -1

Architect: Then one layer up ,

Architect: we 'll add the perimeter of a 4x4 orange square

Builder: place orange 1 1 -2, place orange 1 2 -2, pick orange 1 1 -2, place orange 0 2 -2, place orange -1 2 -2, place orange 2 2 -2, place orange 2 2 -1, place orange 2 2 0, place orange 2 2 1, place orange 2 2 2, place orange 1 2 2, place orange 1 2 0, pick orange 1 2 0, place orange 0 2 2, place orange -1 2 2, place orange -1 2 -1, place orange -1 2 0, place orange -1 2 1

Architect: Then on the 4th layer ,

Architect: we 'll have another 2x2 square of purple bricks

Builder: whoops

Architect: haha no worries

Builder: pick orange -1 2 2, pick orange 0 2 2, pick orange 1 2 2, pick orange 2 2 2, place orange 1 2 1, place orange 0 2 1, place purple 1 2 -1, place purple 1 3 -1, pick purple 1 2 -1, place purple 0 3 -1, place purple 1 3 0, place purple 0 3 0

Architect: The purple layer will be one layer higher

Builder: oh yes ,

Builder: sorry

Architect: No problem

Builder: pick purple 1 3 -1, place purple 1 4 0, pick purple 0 3 -1, pick purple 0 3 0, pick purple 1 3 0, place purple 0 4 0, place purple 0 4 -1, place purple 1 4 -1

Architect: Now floating above the the back right corner of the purple square ,

Architect: add another purple brick

Architect: So there will be a space between this brick and the purple square

Builder: place purple 1 5 0, place purple 1 6 0, pick purple 1 5 0

Architect: Cool

Architect: Now behind the brick ( relative to your perspective ,

Architect: add another purple brick

Builder: place purple 2 6 0

Architect: Great !

Architect: Now add another brick on top of that one

Builder: place purple 2 7 0

Architect: So if you look at the 6th layer of the structure ( the one that currently has two bricks )

Architect: We are going to make it into a plus sign

Architect: where the middle brick of the plus is the one directly underneat the brick you just added

Builder: place purple 2 6 1, place purple 2 6 -1, place purple 3 6 0

Architect: That's perfect !