This is a tutorial on how to make a speedwall.
Step 1: Upright Dominoes
Place an even number if dominoes upright, one domino width apart.
Step 2: Flat Dominoes
Place flat dominoes on top of every pair forming a box.
Step 3: Upright Dominoes
Put dominoes on top of all the boxes.
Step 4: Flat Dominoes
Connect the top dominoes by laying more flat dominoes.
Step 5: Continue Steps 3 and 4 Until It Is a Triangle
Add upright dominoes and flat dominoes until you are at the top.