SudokuSolver Forum

A forum for Sudoku enthusiasts to share puzzles, techniques and software
It is currently Thu Mar 28, 2024 4:51 pm

All times are UTC




Post new topic Reply to topic  [ 140 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13, 14  Next
Author Message
 Post subject: Re: Brainteaser thread
PostPosted: Wed Jun 04, 2008 8:06 am 
Offline
Site Admin

Joined: Sun Apr 13, 2008 1:50 pm
Posts: 191
Location: London
After a bit more work on the train, I think it is:
J S R Y O D
E L A M N F


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Wed Jun 04, 2008 8:51 am 
Offline
Grand Master
Grand Master
User avatar

Joined: Wed Apr 23, 2008 5:29 am
Posts: 302
Location: Sydney, Australia
rcbroughton wrote:
However, if you live in England, just look out of the window: If it is cold and raining, it's June.
:lol:
Ah, the long lost art of "looking at the sky through the window of an air-conditioned room to tell the temperature outside". :study:

Mind you, it's exactly the same in Sydney here. Cold, raining and generally miserable. :pallid:


About your most recent try:
Of your 2nd die, I don't see any way to avoid using each of F,L,N exactly once, thus violating rule #5.

_________________
ADYFNC HJPLI BVSM GgK Oa m


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Wed Jun 04, 2008 7:12 pm 
Offline
Site Admin

Joined: Sun Apr 13, 2008 1:50 pm
Posts: 191
Location: London
Third time lucky - I missed that little count.

Hidden Text:
JA = Jan
FY = Feb
MR =Mar
AR =Apr
MY =May
JE =Jun
JL =Jul
AS =Aug
SM =Sep
OR =Oct
NO =Nov
DE =Dec

JRYSND
AMEOFL

Jx3 Rx3 Yx2 Sx2 Nx1 Dx1
Ax3 Mx3 Ex2 Ox2 Fx1 Lx1


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Thu Jun 05, 2008 1:06 am 
Offline
Addict
Addict

Joined: Fri May 16, 2008 12:18 am
Posts: 62
Hi

Thought I'd give a little walk-through to the letter part.

Hidden Text:
First letters month.
J 3x
A 2x
M 2x
F 1x
S 1x
O 1x
N 1x
D 1x

Fixed months:
JE = june
JL = july
MY = may

One die will have J, then the other will have e,l

J * * * * *
E L * * * *

Each die need to be first letter 6 times. Die 2 has E and L which are never first letter of the month. So to make 6 times first letter with the remaining 4 letters, we need both A and M twice, plus 2 letters of FSOND.
As M is on die 2 Y has to be on die 1.

J Y * * * *
E L A M * *

April has no second letter that can be a first letter. So die 1 has one of p/r/i/l and 3 of FSOND.
August needs a second letter on die 1. This can only be S.
March needs a second letter on die 1. This can only be R.

J Y S R * *
E L A M * *

January has to be Ja because it can only use a letter from ELAMFOND. Only A will give a unique set.

Months covered so far:
January = Ja
March = Mr
April = Ar
May = My
June = Je
July = Jl
August = As

On die 2 L can't be in any months except July: L = 1.

One of FOND has to be used twice on die 2. Only O can be used twice: October(O.) and nOvember(No). So O goes on die 2 and N on die 1.

J Y S R N *
E L A M O *

Both F and D can only be used once on either die.

Letters used so far.
1 2
J a (january)
J e (june)
J l (july)
y M (may)
s A (august)
S . (september)
r A (april)
r M (march)
N o (november)
. O (october)

Die 1: J(3), S(2), R(2), Y(1), N(1), F/D(1)
Die 2: A(3), M(2), O(2), E(1), L(1), F/D(1)

On die 1 Y or N needs to be used again. Only option is Y in february. So F goes on die 2 and D on die 1.

Die 1: J Y S R N D
Die 2: E L A M O F

Just for completeness.

Letters used.
1 2
J a (january)
J e (june)
J l (july)
y M (may)
s A (august)
S . (september)
r A (april)
r M (march)
N o (november)
. O (october)
y F (february)
D . (december)

Die 1: J(3), S(2), R(2), Y(2), N(1), D(1)
Die 2: A(3), M(2), O(2), E(1), L(1), F(1)

October needs to use one of RSY on die 1, to make it 3. Only option is R.
September/December can use E and M to get those to 3 and 2. So they either use one E and one M or both use an E.

[edit] For rule 6 *cough*: O and A have both been used as first and second letter, so the others can't be used as both first and second letter. September/December need a second letter on Die 2. This can only be E as M has been used as first letter.

Answer:

Die 1: J Y S R N D
Die 2: E L A M O F

Die 1: J(3), R(3), S(2), Y(2), N(1), D(1)
Die 2: A(3), M(2/3), E(2/3), O(2), L(1), F(1)
[edit]: Die 2: A(3), E(3), M(2), O(2), L(1), F(1)


Okay, not so little but enjoy

Para


Last edited by Para on Thu Jun 05, 2008 10:37 am, edited 2 times in total.

Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Thu Jun 05, 2008 2:58 am 
Offline
Grand Master
Grand Master
User avatar

Joined: Wed Apr 23, 2008 5:29 am
Posts: 302
Location: Sydney, Australia
Well done both! ;clapclap; :thumbs: My own scheme has one letter different to Richard's:
Hidden Text:
JA FY MR AR MY JE
JL AS SE OR NO DE

JRSYDN
AEMOFL

I missed the alternative abbreviations as cited by Para (and Richard). :oops:

So I guess Para should be the winner for that thorough walkthrough and for finding out all the possibilities. No disrespect to Richard but I'm sure you don't mind giving somebody else a chance once in a while. :cheesey:


PS: Just a little bit of nitpicking on Para's great walkthrough:
Hidden Text:
"Y m (may)" (twice) should be "y M (may)".


PPS: I hate having puzzles of multiple solutions, so here is an additional rule to make it unique:

6. Of each die, at least 2 faces must be used purely as the first letter, and at least 2 faces must be used purely as the second letter.

:ugeek:

_________________
ADYFNC HJPLI BVSM GgK Oa m


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Thu Jun 05, 2008 8:19 am 
Offline
Site Admin

Joined: Sun Apr 13, 2008 1:50 pm
Posts: 191
Location: London
Nice work Para ;clapclap;

looks like you are in the driving seat for the next puzzle . . .

Rgds
Richard


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Thu Jun 05, 2008 2:08 pm 
Offline
Addict
Addict

Joined: Mon Apr 21, 2008 4:42 pm
Posts: 39
Location: Montesson
rcbroughton wrote:
However, if you live in England, just look out of the window: If it is cold and raining, it's June.
:lol:
I do not agree, rain in England as in Bretagne or Normandie in France is still possible in June :bigoops: . As for cold, ask any mexican and it is still cold some days in June!, I have tried Canadian summer and it is really Mexican winter :santa: !
Now lets wait for Para's puzzle... and European summer ;)

_________________
Nothing can both be and not be


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Fri Jun 13, 2008 9:08 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Mon Apr 21, 2008 10:32 am
Posts: 868
rcbroughton wrote:
First solution has dropped out of the search: (and it doesn't use 1 ... 21)

{1, 4, 25, 6, 14, 3} {8, 10, 16, 12, 9} {2, 22, 19, 13} {7, 33, 11} {15, 27} {39}

Still looking for more . . .
Are you still looking? Found further solutions, or is there only one?

_________________
Quis custodiet ipsos custodes?
Normal: [D  Y-m-d,  G:i]     PM->email: [D, d M Y H:i:s]


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Fri Jun 13, 2008 9:33 pm 
Offline
Expert
Expert

Joined: Mon Apr 21, 2008 8:12 pm
Posts: 90
Location: London, UK
Børge wrote:
Are you still looking? Found further solutions, or is there only one?


Matt managed to track the original source but didn't give a link. I've googled it and surprisingly only one solution was found. The link is Set of Golomb rulers

_________________
I have 81 brain cells left, I think.


Top
 Profile  
Reply with quote  
 Post subject: Re: Brainteaser thread
PostPosted: Sat Jun 14, 2008 7:26 am 
Offline
Site Admin

Joined: Sun Apr 13, 2008 1:50 pm
Posts: 191
Location: London
Glyn wrote:
Børge wrote:
Are you still looking? Found further solutions, or is there only one?


Matt managed to track the original source but didn't give a link. I've googled it and surprisingly only one solution was found. The link is Set of Golomb rulers
Hi Glyn

Yes I found the site also. My program did complete and only found one solution for the 6 rods. It really is an amazing result!


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 140 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13, 14  Next

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group