Quick tips

• Find an anchor. Pick a distinctive end or corner of A, such as the yellow square, and find it in B first.
• Then follow the arm. From the anchor, check which way the next part goes: left or right of it.
• Turn, don't flip. Turn A in your head in small steps. If you'd need to lift it off the page to match, it's a mirror.
• Count the bends. On cube stacks, follow the arm from one end and note the direction of each bend.
• Speed comes later. Accuracy first; the bonus follows once the turning feels natural.