Your antivirus squad is up against a particularly sadistic bit of malicious code that's hijacked your mainframe.
What you've learned from other infected systems — right before they went dark — is that it likes to toy with antivirus agents in a very peculiar way.
It corrupts one of the 4 disks that run your mainframe, represented by lights showing which are on and which off.
Then it selects one member of the antivirus squad — this will be you— and brings them into the mainframe.
It tells them which disk it corrupted, allows the agent to switch a single disk on or off, then immediately de-rezzes the agent.
Your squad can make an all-out attack to break into the mainframe and destroy one disk before they're wiped out.
If they destroy the corrupted one, the malware will be defeated.
Any others, and the virus will erase the entire system.
The lights are only visible within the mainframe, so you won't know until you get there which, if any, are on.
How can you communicate, with your single action, which of the 4 disks has been corrupted?
