Hack command
The Hack command is used to clear the brush in certain areas, that have listed directions of "Blazed trails:"
Use
Each attempt to hack, successful or otherwise, will incur a RT time of between 10 and 20 seconds.
There is a check to see whether or not the correct direction is chosen, and if failed, will make progress in another direction.
Over multiple uses, a direction will go from "(impassable" to and finally to "(passible)."
Impassible Direction
If the direction is not possible to travel, the underbrush "proves stubbornly resistant and you make no progress." There is a bug in that if a direction that cannot be traveled is chosen due to failure to find the correct direction, it will waste the effort and give you a message as if you are making progress.
Duration of Trails
Trails that are made via the bug into impassible directions will fade very quickly, while others seem to have lives of 10 or more minutes (actual times not tested).
Syntax
HACK <cardinal direction>