7th Guest Crypt Puzzle
Trapper
Can anybody help with a solution of the crypt puzzle. I'm going insane
trying to figure out how to get the coffin lids to close. I think my
problem is figuring out the pattern. I've looked at the hint pages on
the net but they're not much help. A detailed system (for the mentally
challenged) would really be appreciated.
Steve Dix
Try the following hints :
Crypt in the basement:
OBJECTIVE: Get the lid's all closed before the dead escape.
There are 9 coffins arranged like this:
1 2 3
4 5 6
7 8 9
(You)
Clicking to open/close the lid on one affects the ones around it
like this: (X) is the one clicked - n means no change in the lid.
n 2 n 1 n n n n 3 1(2)3 n n n
4(5)6 (4)n n n n(6) n n n n n n
n 8 n 7 n n n n 9 n n n 7(8)9
(1)2 n n n n n 2(3) n n n
4 5 n 4 5 n n 5 6 n 5 6
n n n (7)8 n n n n n 8(9)
Notice that clicking 2,4,6 or 8 has no effect on 5.
One more thing: Several times while trying to click on #9 I managed to
instead click while the right beckoning hand was displayed. This
exits the puzzle early. Be sure you have the EYE before clicking in a
coffin.
Although I am sure there is a nice algorithm for this solution I still
have not found it. I have managed to solve it by brute force only.
By resetting the puzzle I usually find a fairly easy one to solve within
a few minutes.
_____________________________________________________________
Steve Dix Games Domain UK System Supervisor
-------------"The Largest Games Site on the Web"-------------
http://www.gamesdomain.co.uk/
Matthew Daly
Tra...@ns.sympatico.ca, if that is your REAL name, said:
>Can anybody help with a solution of the crypt puzzle. I'm going insane
>trying to figure out how to get the coffin lids to close. I think my
>problem is figuring out the pattern. I've looked at the hint pages on
>the net but they're not much help. A detailed system (for the mentally
>challenged) would really be appreciated.
Oh boy, if you don't like this puzzle then you're REALLY going to hate
the art gallery. Probably you'll want to just go straight to the library
to bypass that one.
The pattern is not all that hard to figure out. There are three
different types of coffins: 4 corner coffins, 4 edge coffins, and
1 center coffin.
If you click on a corner coffin, then it, the two adjacent edge coffins,
and the center coffin switch between being opened and closed.
If you click on an edge coffin, then it and the two adjacent corner
coffins switch.
If you click on the center coffin, then it and the four adjacent edge
coffins switch.
I'll give a detailed system for solving all the puzzles right after
a spoiler warning for those who don't want it given away....
SPOILER
This solution isn't the fastest one available, but it's easy to
describe and pretty foolproof. The idea is that we'll take every
open coffin and press five buttons that will close it and leave
the other coffins unchanged when we're done. Therefore, if you
had a setup with five open coffins, then you would have a solution
with 25 moves.
To close a corner coffin and leave the other eight unchanged, click
on all the corners except the one opposite the coffin you want to
switch and on the two edges not adjacent to the one you want to switch.
For instance, if you want to flip the upper-left coffin you would
click on the ones with the X's here:
X.X
..X
XX.
To close an edge coffin, click on all the edges except the one
opposite the one you want to switch and the two corners not adjacent
to the one you want to switch. (Note the similarity.) So, to flip
the top center coffin while keeping the others unchanged, click:
.X.
X.X
X.X
To close the center coffin while keeping the others unchanged, click
on it and the four edges:
.X.
XXX
.X.
-Matthew
--
Matthew Daly I feel that if a person has problems communicating
mwd...@kodak.com the very least he can do is to shut up - Tom Lehrer
My opinions are not necessarily those of my employer, of course.
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!!emailid!!
In <33BA75...@gamesdomain.com>, Steve Dix <st...@gamesdomain.com> writes:
>Trapper wrote:
>>
>> Can anybody help with a solution of the crypt puzzle.
> There are 9 coffins arranged like this:
>
> 1 2 3
> 4 5 6
> 7 8 9
> (You)
>
> Clicking to open/close the lid on one affects the ones around it
> like this: (X) is the one clicked - n means no change in the lid.
>
> n 2 n 1 n n n n 3 1(2)3 n n n
> 4(5)6 (4)n n n n(6) n n n n n n
> n 8 n 7 n n n n 9 n n n 7(8)9
>
> (1)2 n n n n n 2(3) n n n
> 4 5 n 4 5 n n 5 6 n 5 6
> n n n (7)8 n n n n n 8(9)
>
>Notice that clicking 2,4,6 or 8 has no effect on 5.
>Although I am sure there is a nice algorithm for this solution I still
>have not found it. I have managed to solve it by brute force only.
>
One nice algorithm, coming up.
Step 1. Count the number of open coffins in positions 1, 3, 5, 7, and 9
(the center and the four corners). If the number is odd, click the center
coffin, coffin 5.
Step 2. For each of the side coffins (coffins 2, 4, 6, and 8), count the
number of open coffins including the coffin and its 5 adjacent coffins.
For example, for coffin 2, count the number of open coffins among coffins
1, 2, 3, 4, 5, and 6; for coffin 4, count the number of open coffins
among coffins 1, 2, 4, 5, 7, and 8. If the number is odd, click on
that side coffin.
Step 3. For each corner coffin, if it is open, click on it.
That's it. Step 3 must be performed last, but the order of steps 1 and
2 can be reversed. No coffin needs be clicked more than once.
In case the algorithm isn't clear, here is a concrete example. C denotes
a closed coffin, O and open one.
C O O
O C O
C O C
Of coffins 1, 3, 5, 7, and 9, only one is open. One is odd, so click
on coffin 5.
C C O
C O C
C C C
For coffin 2, two of six coffins around it (including itself) are open;
two is even, so don't click on 2. For coffin 4, one of the six coffins
around it is open; one is odd, so click on 4.
O C O
O O C
O C C
For coffin 6, two of the six surrounding coffins are open; two is even,
so don't click on coffin 6. For coffin 8, three of the surrounding coffins
are open; three is odd, so click on coffin 8.
O C O
O O C
C O O
Now the corner coffins. Coffins 1, 3, and 9 are open; click on them.
The results successively, are
C O O C C C C C C
C C C C O O C C C
C O O C O O C C C
>_____________________________________________________________
>Steve Dix Games Domain UK System Supervisor
>-------------"The Largest Games Site on the Web"-------------
> http://www.gamesdomain.co.uk/
--
Mark Thornquist
Wei-Hwa Huang
Trapper <Tra...@ns.sympatico.ca> writes:
>Can anybody help with a solution of the crypt puzzle. I'm going insane
>trying to figure out how to get the coffin lids to close. I think my
>problem is figuring out the pattern. I've looked at the hint pages on
>the net but they're not much help. A detailed system (for the mentally
>challenged) would really be appreciated.
System 1: Easy to understand, slow to do.
Note all the open coffins. Click on all of them (even if they close
while you're clicking on the others). Repeat.
Example: O=open, X=close
OXX
XXX
XOX
Hit the two Os, in any order, and you get:
XOX
OOX
OXO
Hit the five Os, in any order, and you get:
XOO
XXX
OOX
Hit the four Os, in any order, and you get:
OOO
OXO
OOO
Hit the eight Os, and they'll all be closed!
This system is guaranteed to work after at most 5 iterations.
System 2: (Easy to do, hard to calculate)
Learn this addition rule:
O+O=X
O+X=O
X+O=O
X+X=X
(kinda like "odd" and "even")
Now, learn how to add positions, e.g.
OXO XOO XXO
OOO + XXO = OOX
OXX OOO XOO
(add up each corresponding position).)
Now that you know the rule, do this.
Number the coffins from 1-9:
123
456
789
Start with the position
XXX
XXX
XXX
If 1 is open, add
OOO
OOX
OXX
If 2 is open, add
XOX
OXO
OXO
If 3 is open, add
OOO
XOO
XXO
If 4 is open, add
XOO
OXX
XOO
If 5 is open, add
XOX
OOO
XOX
If 6 is open, add
OOX
XXO
OOX
If 7 is open, add
OXX
OOX
OOO
If 8 is open, add
OXO
OXO
XOX
If 9 is open, add
XXO
XOO
OOO
Take the result, and click on all the O's. Voila!
Example:
Suppose the situation starts out at
OXX
XXX
XOX
Since 1 and 8 are the only ones open, we add them:
OOO OXO XOX
OOX + OXO = XOO
OXX XOX = OOX
So, click on positions 2, 5, 6, 7, and 8 (in any order), and you're done!
--
Wei-Hwa Huang, whu...@ugcs.caltech.edu, http://www.ugcs.caltech.edu/~whuang/
-------------------------------------------------------------------------------
"Oh, that was when the sand was so hot we were each hopping on one foot."
Lainahtan
Steve Dix (st...@gamesdomain.com) wrote:
: > Can anybody help with a solution of the crypt puzzle.
: Try the following hints :
: Crypt in the basement:
: OBJECTIVE: Get the lid's all closed before the dead escape.
: 1 2 3
: 4 5 6
: 7 8 9
: (You)
: Clicking to open/close the lid on one affects the ones around it
: like this: (X) is the one clicked - n means no change in the lid.
:
: n 2 n 1 n n n n 3 1(2)3 n n n
: 4(5)6 (4)n n n n(6) n n n n n n
: n 8 n 7 n n n n 9 n n n 7(8)9
:
: (1)2 n n n n n 2(3) n n n
: 4 5 n 4 5 n n 5 6 n 5 6
: n n n (7)8 n n n n n 8(9)
:
: Notice that clicking 2,4,6 or 8 has no effect on 5.
Here's the nice algorithm:
To shut a corner: (this example, shut the upper left, #1)
[legend: X means press it, - means don't press)
X X X
X X -
X - -
Rotate accordingly to shut the other 3 corners
To shut an edge (2,4,6,8, this example shut the top edge, #2)
- X -
X - X
X - X
Rotate etc for the other 3
To shut the center (#5)
- X -
X X X
- X -
If you want to solve in a minimum number of moves, get paper and pen ready
when you're playing.
Make a tic tac toe with a border around it:
__________
| | | | Look to see which coffins are open at the start.
|__|__|__| Mark a small X in the box you would have to press to
| | | | shut each coffin. (as per above) You will put more than
|__|__|__| one X in each box. Then count the number of X's in each box.
| | | | If it's an ODD number, click that coffin once.
|__|__|__| If it's EVEN, don't click. You should have it solved.
EXAMPLE:
Numbers 1,5,6,and 7 are OPEN.
to shut 1: 5: 6: 7:
X X X - X - X X - X - -
X X - X X X - - X X X -
X - - - X - X X - X X X
Totals:
__________
|XX|XX|X | Box 6 is the only even one, so press each of the other ones ONCE.
|X_|X_|__| With a bit of figuring, you will see that all lids will be
|XX|XX|XX| Closed after doing this.
|X_|X_|__|
|XX|XX|X |
|X_|X_|__|
--
-- Lainahtan
--