[lace-chat] Sudoku
Between Carol and Lisa I have my homework printed out. I even printed out the Jigsaw Sudoku to ahve a go at something new. Hopefully I will have to revert to guessing a little less once I've worked out what they are trying to tell me. I use Jean's slice and dice technique and then even walk away and try later, otherwise I wouldn't get anything done some days. Before I leave this computer which has the printer attached I will have to visit the web site that Sue gave. Thanks to you all. Janice Janice Blair Crystal Lake, 50 miles northwest of Chicago, Illinois, USA http://www.lacemakersofillinois.org/ To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
[lace-chat] Sudoku
Hi All, The morning after I wrote about working on the 11 - 9x9 puzzle Sudoku I found two "9"s in the same row : ( Oh no!! I've started over and will let you know how I fare . Jane in Vermont, USA [EMAIL PROTECTED] To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
Re: [lace-chat] Sudoku
If you have a Windows computer, you can download a program at www.sudoku.com that will help you solve them. Otherwise, you can use a pencil and put the potential numbers lightly in the corners of the blank spots until you figure out which one really goes. I have a Mac, so wasn't able to test the program. I've not finished one yet - there are so many other (lace, knitting, embroidery, etc.) productive puzzles in my life --- and as a "support" programmer, my work life is full of "solve it now" puzzles where I've never seen that part of the application or the code behind it until the problem comes in. I really don't find a need for adding more puzzles --- but more power to those who like them! -- -- Martha Krieg [EMAIL PROTECTED] in Michigan To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
Re: [lace-chat] Sudoku
Hi All, I must be surrounded by Sudoku-nuts! My sister has just given my husband a book of 'grid' puzzles, including things like Battleships etc., but several of the puzzles are Sudoku on a 12 x 12 grid!Now that seems like just plain madness to me . I think I completely missed the 'logic' gene - but I can't get upset over it, and will stick to my crossword puzzles. Carol - in Suffolk UK. Subject: [lace-chat] Sudoku > Hi All, The morning after I wrote about working on the 11 - 9x9 puzzle > Sudoku I found two "9"s in the same row : ( Oh no!! I've started over and > will let you know how I fare . > > Jane in Vermont, USA > [EMAIL PROTECTED] > > To unsubscribe send email to [EMAIL PROTECTED] containing the line: > unsubscribe lace-chat [EMAIL PROTECTED] For help, write to > [EMAIL PROTECTED] To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
[lace-chat] Sudoku again
Hi All, One day when I was supposed to be doing something else I Googled Shogun Sudoku and found this wonderful site: http://sudoku.top-notch.co.uk/ They have some free puzzles - a double, a five combo and Wordoku (which is available in 4 languages I think). They don't change the free ones weekly (I've been checking), maybe monthly. Checking to see if there were new free ones wore down my resistance and I paid the 2 pounds ($3.61USD) for a password good for two weeks. They have four Shogun puzzles (you need the password for those) and four Sumo Sudoku puzzles - 13 connected squares!! Today I went back and found they have created a new monster - Shaolin Sudoku - 25 connected puzzles! I don't think I'll start that one very soon! I do have a life even if it isn't apparent in this note . They just changed the free ones but I have had more trouble with the double one (Sensei Sudoku) they had up than I have with the 5-combo (Samurai Sudoku). I even started another Shogun but none will ever be as hard as that first one was! I'm not timing myself anymore, just having fun . Wikipedia has some good info on solving the puzzles. It turns out I'm a scanner but I will fill in numbers when they fit in two or three spaces only. This second Shogun I'm working on is teaching me some new "rules" about the puzzles too. I also found an article by Will Shortz, current puzzle editor of the New York Times. He says that Sudoku first appeared in one of the Dell puzzle magazines in the US in 1989 (I think) and then it took off in Japan. The rest is history! Jane in Vermont, USA where it's 50F (10C) outside!! Feels fabulously warm!! [EMAIL PROTECTED] To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
[lace-chat] Sudoku (again)
By studying solutions (and frankly looking for some trick), I have discovered an “ugly” little truth that may or may not be well known (but in the event it is not, I thought I would share it here). Consider a 3-row block which consists of 27 little squares (within the bold separators) – it happens that numbers travel together. What I mean is that if, for example, the first 3 numbers across are 3 5 6, then you can be sure that at least two of them will move across the 3-row block together. That is, the 3 and the 5 OR the 3 and the 6 OR the 5 and the 6 will appear in the same 3-square block in the rest of the section. They may not be in the same order, or they have a separator between them, but they will both be in the same little 3-square section across those 27 squares. In the puzzle I have just finished, the top 3 rows are as follows: 3 5 6 4 9 7 2 8 1 9 2 1 5 6 8 4 3 7 4 8 7 1 3 2 5 6 9 In this example, the 5 and 6 travel together and the 3,8, and 9 (their neighbors in subsequent sections) are what I call “incidentals” and they are incidental to the traveling pairs in the rest of the 27-square section. If you look at the second row, you will see 9 2 1. If you already know that 9 is an “incidental”, then you will know that 2 and 1 travel together the rest of the way. Examination will also show that 4 and 7 go together in the same way. The second and third sets of 3-row (27-square) blocks have the same characteristics, but each of them has its own pairs and incidentals. As to columns, the truth is still there but in this case, the overall unit is a 27-square *column* AND the pairs are in a column as opposed to being in a row. So as to columns in my example, it happens that the 9 and 4, the 5 and 2, and the 6 and 7 are the pairs, the new incidentals being 3, 8, and 1. There is no correspondence (that I know of) as to which are pairs or incidentals in adjacent 27-square rows or columns, each being independent of its neighbors *and* no correspondence as to which are incidentals in rows vs columns. Obviously, you have to be pretty well along for this to be of any help, but every now and then (as was the case in this puzzle) it can bring light. Susan Webster Canton, OH To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
Re: [lace-chat] Sudoku again
Perhaps Jane wants to go to Lucca and see the World Sudoku Championships http://news.bbc.co.uk/2/hi/europe/4792710.stm Sue To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
RE: [lace-chat] Sudoku (again)
Very interesting! I had a quick look at some Sudoku solutions and I think you may be right. Thanks! Best wishes, Avital Susan Webster wrote: > By studying solutions (and frankly looking for some trick), I have > discovered an “ugly” little truth that may or may not be well known (but > in the event it is not, I thought I would share it here). > > Consider a 3-row block which consists of 27 little squares (within the > bold separators) – it happens that numbers travel together. What I mean > is that if, for example, the first 3 numbers across are 3 5 6, then you > can be sure that at least two of them will move across the 3-row block > together. That is, the 3 and the 5 OR the 3 and the 6 OR the 5 and > the 6 will appear in the same 3-square block in the rest of the section. > They may not be in the same order, or they have a separator between > them, but they will both be in the same little 3-square section across > those 27 squares. > > In the puzzle I have just finished, the top 3 rows are as follows: > > 3 5 6 4 9 7 2 8 1 > 9 2 1 5 6 8 4 3 7 > 4 8 7 1 3 2 5 6 9 > To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
Re: [lace-chat] Sudoku (again)
Thinking about it: if the 3 5 and 6 are in the top row of the first block then they can't be in the top row of the second block or the top row of the third block. Taking the second block first: 3,5 & 6 can be positioned so that all are in the second row or they can be split so that one of them is in the second row and two in the third row or 2 of them in the second row and one of them in the third row or all are in the third row. Similarly with the third block (but with more restrictions based on what has happened in the second block). So, yes, it is inevitable that at least 2 of them will stay together in each of the second and third blocks, because there aren't enough rows to spread them any other way. Sue - Original Message - From: "Avital" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, April 18, 2006 3:18 AM Subject: RE: [lace-chat] Sudoku (again) Very interesting! I had a quick look at some Sudoku solutions and I think you may be right. Thanks! Best wishes, Avital Susan Webster wrote: By studying solutions (and frankly looking for some trick), I have discovered an “ugly” little truth that may or may not be well known (but in the event it is not, I thought I would share it here). Consider a 3-row block which consists of 27 little squares (within the bold separators) – it happens that numbers travel together. What I mean is that if, for example, the first 3 numbers across are 3 5 6, then you can be sure that at least two of them will move across the 3-row block together. That is, the 3 and the 5 OR the 3 and the 6 OR the 5 and the 6 will appear in the same 3-square block in the rest of the section. They may not be in the same order, or they have a separator between them, but they will both be in the same little 3-square section across those 27 squares. In the puzzle I have just finished, the top 3 rows are as follows: 3 5 6 4 9 7 2 8 1 9 2 1 5 6 8 4 3 7 4 8 7 1 3 2 5 6 9 To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED] To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
RE: [lace-chat] Sudoku (again)
I did think about it and came to the same conclusion as you. I was going to post it but you beat me to it. ;-) Also, I did an extremely easy Sudoku today while in the middle of cooking and realised that knowing that numbers split up (2 go one way and the third goes the other way) does not help in solving the puzzle. going offline for the last day of Passover Avital Sue Babbs wrote: > Thinking about it: > if the 3 5 and 6 are in the top row of the first block > then they can't be in the top row of the second block > or the top row of the third block. > > Taking the second block first: > 3,5 & 6 can be positioned so that > all are in the second row > > or they can be split so that one of them is in the second row and two in the > third row > > or 2 of them in the second row and one of them in the third row > > or all are in the third row. > > Similarly with the third block (but with more restrictions based on what has > happened in the second block). > > So, yes, it is inevitable that at least 2 of them will stay together in each > of the second and third blocks, because there aren't enough rows to spread > them any other way. > Sue > > To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
