Zork 3 - The Royal Puzzle

Yes, it's the dreaded Royal Puzzle maze! The purpose of the maze
is that it contains a book that you must collect. The feature of
the maze is that, once inside, you have to manoeuvre a ladder
under the hole so that you can find your way back out, and this
is done by pushing the sandstone walls which are moveable. The
marble walls are fixed. Even once you know what you're meant to
be doing, it's not easy to complete. There are several ways to
do it, this is one of them.

Once in the maze, push the east wall, go south twice, east twice,
push the south wall and get the book.

That was easy! Now comes the hard part - getting out again.

Push the south wall, go north four times, push the east wall, go
west, south twice, west twice, north twice and push the east wall
twice.

Go south four times, east twice, north three times and push the
west wall. Go east, south three times, west twice, north, push
the east wall. Now go west twice, north-west, north twice, east
twice, push the south wall twice.

Go north twice, west three times, push the south wall, go north,
east twice, south-east, east twice, south, push the south wall,
go west, push the west wall twice, push the south wall, go west,
push the north wall three times, go north-west and climb the
ladder ....... phew!!!

Oh yes, ignore the steel door. It may be a short cut for getting
out but you'll have to use the book to open it and you'll never
see the book again - so forget it!