Bolt the robot does exactly what you tell him. Program him in real 9618 assembly before the 6 am truck leaves.
You run the night shift at a parcel depot in Karachi. The morning truck leaves at 6 am, and the only worker is Bolt, a robot that does exactly what you tell it, one command at a time. Drag commands into a program, press Play and watch Bolt work. Every command is a real Cambridge 9618 assembly instruction.
Size and Speed are two challenges. Your best for each is saved, and they can come from different programs. Most jobs need two different programs to win both.
Work out your answer first. After you check, the full trace table appears here.
Floor squares open in job 3.
Each row is one step. A box is filled only when that step changes it, the way Cambridge mark schemes do. Address 100 is command 1.
When you want more than a game
The depot is the front door. The class is where it clicks.