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89 replies to this topic

### #11 wirewheels

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Posted 12 December 2009 - 12:40 AM

There aren`t many people working on this puzzle .

I think I`ve solved the first code digit part (even though you have virtually given the answer in your last spoiler.)
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### #12 wirewheels

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Posted 12 December 2009 - 01:01 AM

is that correct?
if it is then I'll carry on with the next code digit.
Spoiler for 1st code digit

Edited by wirewheels, 12 December 2009 - 01:02 AM.

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### #13 superprismatic

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Posted 12 December 2009 - 10:08 PM

is that correct?
if it is then I'll carry on with the next code digit.

Spoiler for 1st code digit

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### #14 melissa:)

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Posted 13 December 2009 - 08:42 PM

judging by what the last few comments have been, i'm guessing that the code begins witha 2...

and i'm 13. surely you guys should have worked that out ages ago considering you're so clever and all. anyway...

bye guys... xx
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### #15 melissa:)

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Posted 13 December 2009 - 08:44 PM

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### #16 redrooster

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Posted 17 December 2009 - 08:19 PM

OBSERVATIONS..This is assuming that the prefix LETTER is not part of any calculation

(i) Changing the FIRST Box Digit affects the SECOND , THIRD & FOURTH Code Digits only (and not the FIRST Code Digit)

So this means that the FIRST Code Digit is dependent on the SECOND,THIRD & FOURTH Box Digits only

Z 5271 = 1225
Z 2271 = 1552

(ii) Changing the SECOND Box digit affects ALL four Code Digits

V 1044 = 3442
R 1244 = 1335

(iii ) Changing the THIRD Box digit affects ALL four Code Digits

S 4705 = 4133
S 4725 = 2325

(iv) Changing the FOURTH Box digit affects ALL four Code Digits

S 4705 = 4133
A 4707 = 2455

note...the examples below show that it only affects three of the four Code Digits

Z 1043 = 4455
V 1044 = 3442

U 1095 = 2245
U 1096 = 1142

From the above (ii), (iii) and (iv) it looks as though Code Digits TWO , THREE and FOUR will involve using all the four Box Number digits in any calculations

(v) Different Boxes having the SAME CODE

E 4111 = 3222
A 7238 = 3222

A 4089 = 4455
Z 1043 = 4455
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### #17 superprismatic

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Posted 17 December 2009 - 10:41 PM

Here's my work so far:

I decided to write a program to see if any code digit
depends on a particular subset of the box identifier
positions (the letter with the four digits). So, I
looped over all subsets of Box identifiers. For example,
while processing the subset consisting of the first, third,
and fourth box identifier positions, I would only
consider the E39 from the Box identifier E1390. Then, I
would look thru all other Box identifiers which had
an E, 3, and 9 in any order. Then I would count which
positions in the code for the 2 boxes did not change.
If I found that a particular code position changed when
the subset of the first, third, and fourth positions
in two Box identifiers were the same, I would conclude
that that particular code position did not depend solely
depend on the first, third, and fourth positions.
I did this for all nonempty subsets of Box identifier
positions, all pairs of the 77 box identifier & code
instances, and all code positions.

I found that there were 11 instances where positions
3, 4, and 5 of one Box identifier had the same subset
of numbers as that of another Box identifier. In all
11 cases, their first code numbers matched. We already
knew that the first code position depended on the
numbers in positions 3, 4, and 5, however, it was a
good test of my program that it found that. The bad
news is that I found no other code position for which
this kind of agreement happened once, let alone 11 times,
with any subset of Box identifier positions.

It seems to me, then, that the individual code positions
(except the first) are not functions of any subset
of Box identifier positions. So, I think we should start
looking at ways to produce the last three digits
as a single entity from the Box identifiers.

I hope someone duplicates my work, as this would validate
(or possibly invalidate) my claim. I will gladly offer

Redrooster: be assured that some of us are working on this
problem, but it's difficult to report on negative results.
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### #18 superprismatic

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Posted 17 December 2009 - 11:00 PM

Redrooster, please check your original post for typos in the data. If you find any, I'd like to re-run my program. After all, the way I did things, one bad data point would spell disaster!
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### #19 redrooster

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Posted 19 December 2009 - 08:11 PM

Redrooster, please check your original post for typos in the data. If you find any, I'd like to re-run my program. After all, the way I did things, one bad data point would spell disaster!

Yes..the data has been checked and is exactly as I received it

This is the fifth codebreaker puzzle that I`ve attempted from this source and have to say that all the previous ones have utilised working out single individual digits in the Code Number....so it`s an interesting theory that you are pursuing so I will be intrigued to see if it produces any logical answers.

On this particular puzzle , I worked out the first code digit fairly quickly but must admit that I am rather baffled with the other three.(and have spent a long time thinking about it !)
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### #20 redrooster

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Posted 27 December 2009 - 09:35 PM

Is there anyone working on this puzzle?

If so , would you like to share any useful theories ....as I seem to have reached a brick wall...and cannot see (or theorise ) a way around it.
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