Results for last week will come later, once I'm sure I haven't lost any
solutions in the email failure over here.
There was one puzzle submitted this week, "Command Swapping" by ais523:
{{{
In order to win this puzzle, you have to get to command number 9, and
execute it.
You must start by executing command 0, which gives you the option of
going to the (nonexistent) next-lower-numbered-command, or to the
next-higher-numbered command, which is 1. Then command 1 causes you to
swap the text of commands 5 and 8, and then you have the choice of going
to command 0 or 2. If you went to 2 from there, it would swap the text
of commands 1 and 7, and then let you go back to 1 or on to 3; and going
back to 1 at that point would swap the text of commands 3 and 5 (which
is the text which was originally on command 7). If instead you went from
0 to 1 to 2 to 3, and then back to 2, you would be forced back to step
1, as command 2 would then say "Go to command 1". I think that explains
how the mechanics of this puzzle work.
Please submit as your solution a sequence of the letters "u" and "d":
"u" whenever you choose to go to the next-higher-numbered command, and
"d" whenever you choose to go to the next-lower-numbered command.
9. You win.
8. Go to command 2.
7. Swap the text of commands 3 and 5, then go to the next-higher or
next-lower-numbered command.
6. Swap the text of commands 3 and 4, then go to the next-higher or
next-lower-numbered command.
5. Go to command 6.
4. Go to command 1.
3. Swap the text of commands 2 and 4, then go to the next-higher or
next-lower-numbered command.
2. Swap the text of commands 1 and 7, then go to the next-higher or
next-lower-numbered command.
1. Swap the text of commands 5 and 8, then go to the next-higher or
next-lower-numbered command.
0. Go to the next-higher or next-lower-numbered command.
}}}
[Contestmaster note: I don't mind if you include other information in
the solution in addition to the solution itself; I'm always interested
to read it.]
As always, you have one week from now to submit solutions. Anyone can
compete, even if not currently an Enigma member; you just have to join
Enigma before the week ends, and be a player of Agora when I award the
points. Submit answers by private email to me.
The usual scoring rules apply: 8 points for the first correct answer, 4
points for other correct answers, no penalty for an incorrect answer.
Note that you can also submit puzzles of your own, and doing so can be
worth a huge amount of points, especially if there is only one valid
solution; Murphy is likely to score big for authoring last week's
puzzle, I suspect.
--
ais523
Enigma contestmaster
