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22-alliance-power-and-light-streetsmarts-gis-database

README.md

22: Alliance Power and Light (Streetsmarts GIS Database)

Instructions

Locate the two hosts with the specified hostnames (file 300), which correspond to the target power grid substations. When you've found them, cut the power by writing a value of 0 to #POWR.

For more information see "Network Exploration: Geographic Information Systems" in the second issue of the zine.

Solution

XA (global)

GRAB 300
COPY F X
COPY F T
DROP
LINK 800
MARK REPL
REPL NORTH
REPL SOUTH
REPL HERE
LINK 801
JUMP REPL
MARK NORTH
LINK 800
REPL NORTH
MAKE
HOST F
SEEK -1
TEST T = F
TJMP BLACKOUT
SEEK -1
TEST X = F
TJMP BLACKOUT
WIPE
HALT
MARK SOUTH
LINK 802
REPL SOUTH
MAKE
HOST F
SEEK -1
TEST T = F
TJMP BLACKOUT
SEEK -1
TEST X = F
TJMP BLACKOUT
WIPE
HALT
MARK HERE
MAKE
HOST F
SEEK -1
TEST T = F
TJMP BLACKOUT
SEEK -1
TEST X = F
TJMP BLACKOUT
WIPE
HALT
MARK BLACKOUT
COPY 0 #POWR

Results

Cycles Size Activity
36 50 20