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| Anonymous | Tough one!! | 2 | Nov 11 2009, 11:26 PM EST by Anonymous | ||||
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Thread started: Sep 17 2008, 10:06 PM EDT
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I've used all these techniques (except I'm not sure what the 7th technique was talking about). If this techinique could really help, I'd like some better explaining. I have a Mensa sudoku book that started easy and gets VERY hard. I am at #330 out of 600, and I am coming to where I cannot solve any more and was looking for a good tip on another method of figuring. If anyone knows an additional tip or could explain this 7th one, I would greatly appreciate it. Thanks.
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| Anonymous | Typo - 'Advanced' | 0 | May 31 2009, 2:27 PM EDT by Anonymous | ||||
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Thread started: May 31 2009, 2:27 PM EDT
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The real typo here is calling these 'advanced' strategies. These are beginner's strategies for finding what we call the 'freebies' - the cells you can fill in on a Sudoku board without ever requiring 'candidates', where you know a cell is one of a few numbers, and pencil those in small. Any Sudoku of 'Difficult' or above is likely to require candidates; and the techniques for solving those range through pairs, triples and quads, naked and hidden - none of these techniques covered here. At 'Fiendish', you generally find you can't solve the candidates as you go, unlike 'Difficult', and have to fill them all in and start looking. Beyond 'Fiendish', at 'Super Fiendish', expect to start needing X-Wings and Swordfishes. For the Mensa books, these are just starter techniques all over again. To find out what's *really* needed to solve these puppies, try www.scanraid.com/AdvanStrategies.htm
Don't be intimidated by the *really* advanced stuff, though. For anything you find in a newspaper or general puzzle book, techniques beyond X-Wing generally won't be needed. I'm on the Mensa book 3 however; and X-Wings don't even scratch the surface there. But I'll be trying the scanraid techniques, and expecting a few more victories soon. ; |
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| Anonymous | Advanced techniques? | 0 | Mar 20 2009, 12:32 AM EDT by Anonymous | ||||
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Thread started: Mar 20 2009, 12:32 AM EDT
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Do you have use for techniques such as swordfish, forcing loops and chains, conjugate pair chains, xy and xyz wings? I have used the above techniques for any basic, medium and hard puzzles, but often they are not enough for the fiendish puzzles I enjoy doing. Do you find these are enough?
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| BobHoey | typo- technique 2 of 7 | 1 | Aug 29 2008, 10:38 AM EDT by BobHoey | ||||
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Thread started: Aug 29 2008, 10:34 AM EDT
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I am looking for some advanced techniques and found this page but the very second technique; "uniqueness Exclusion" (doubles) does not make sense to me. in the example, there is a 42 in the cell c-6,r-7. What is this? A typo?
The first question mark is clearly a #1 and is pretty obvious, but I don't see any immediate solution to the second question mark. It can't be a 6 but could be any other number. Does the author suggest that there is some way to know what goes into that cell at this point of the puzzle. If so,I want some of that insight.
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| Anonymous | Hmmm... | 1 | Jun 7 2008, 10:30 PM EDT by Anonymous | ||||
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Thread started: Dec 5 2007, 5:26 PM EST
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There is this one puzzle that I have been trying to solve, but can't solve it for crap. It's so insanely hard, even when it seems like you have it right, then you realize at the last minute that you messed up something. It's stressing me out.. I wish I could post it, but I'm not sure how. And don't let the fact that a lot of the numbers are there fool you. I figured it would be easy because of that, but it's not. I will try to figure a way to put it on here.
In other news, my favorite game is Kakuro. It is like Sudoku, except, not only can the numbers not repeat themselves, but they also have to add up to the small numbers in the corners of all the rows and columns. I find that one easier than sudoku, and they don't even start you off with numbers at all.
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| sudoku_maniac | not true | 1 | May 28 2008, 11:57 PM EDT by Anonymous | ||||
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Thread started: May 9 2008, 8:32 PM EDT
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there are lot of puzzles that you can't solve with these 7 techniques. try evil puzzles from http://www.sudoku-solver.net/ . I bet you won't be able to solve many of them with these 7 techniques alone.
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| Anonymous | shendoku | 0 | Oct 17 2007, 7:14 PM EDT by Anonymous | ||||
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Thread started: Oct 17 2007, 7:14 PM EDT
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If you want to try out something new in sudoku, try shendoku, using the sudoku rules but playing two people, one against the other, like battleshipps. They have a free version to download at http://www.shendoku.com/sample.pdf . Anything else they are bringing out or they are working on you can find at www.shendoku.com or at they´r blog www.shendoku.blogspot.com . Have fun, I am. I specially like one slogan I heard about Shendoku: SUDOKU is like masturbation (on your own)…. SHENDOKU is like sex (it takes two).
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| Anonymous | not really true :-) | 0 | Aug 27 2007, 3:43 PM EDT by Anonymous | ||||
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Thread started: Aug 27 2007, 3:43 PM EDT
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Agree with the first comment that it is not true that all these will enable you to solve ANY sudoku puzzle. If it is that simple, I guess many sudoku players wouldn't be as frustrated. The most-advanced sudoku puzzles require a bit more extensive experience and at times even process-and-rollback, etc.
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| Anonymous | Not True | 0 | Mar 13 2007, 1:42 AM EDT by Anonymous | ||||
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Thread started: Mar 13 2007, 1:42 AM EDT
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These techniques will solve all the puzzles I classify as Novice & Player, but will not solve any of the puzzles I classify as Expert. For examples go to my Website <A>www.sudoku-help.com/mX</A> and select any of the Expert puzzles. See also the Tutorials on the techniques needed to Solve ther Expert puzzles.
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| Anonymous | sudoku | 0 | Dec 14 2006, 7:50 PM EST by Anonymous | ||||
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Thread started: Dec 14 2006, 7:50 PM EST
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how do i get this on my site
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| EdouardLavalliere | Presentation | 0 | Nov 30 2006, 1:48 PM EST by EdouardLavalliere | ||||
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Thread started: Nov 30 2006, 1:48 PM EST
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Great! Never seen it explained so simply.
Suggestion: to make it a little easier to viusalise how these rules work, the "sections" of the grids could be undescore in bold. |
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