The XY Wing a.k.a. the Y Wing: A Useful Sudoku Solving Technique When You Are STUCK !!!

  Рет қаралды 72,248

Learn Something

Learn Something

Жыл бұрын

Lesson #12: In Lesson 10 and 11 of my "lessons" series, I covered x wings and the swordfish. the XY wing is an extension of both of these Sudoku solving techniques, and the logic is the same. I cover three different examples of the XY wing in this lesson, please pause and rewind until you understand the technique. It will serve you well in solving harder level Sudoku puzzles. Thanks for watching!
Timestamps:
Definition: 00:15
Example 1: 00:52
Example 2: 04:30
Example 3: 06:55

Пікірлер: 50
@OsmanEralp
@OsmanEralp Жыл бұрын
When the XY is shown to me, it becomes obvious. However, the odd of me finding one in the wild are slim to none!
@An0.nym.0us
@An0.nym.0us 4 күн бұрын
Согласен на 100%! Быстрее банальным перебором решить судоку, чем искать (и не найти) необходимые пары. 😏
@gjaeigjiajeg
@gjaeigjiajeg Ай бұрын
This is by far the best and most detailed explanation that I've heard. Such a good explanation that is clear. Thank you so much!!
@nobitanobi2417
@nobitanobi2417 Жыл бұрын
Thanks mam, and please never stop. Your Sudoku tutorials are top-notch.
@JustFun-iz9rf
@JustFun-iz9rf Ай бұрын
Thank you so much. I don't think I have found anyone that has explained as well as you have so I subscribed
@brigittemercier9421
@brigittemercier9421 2 ай бұрын
Excellent lesson. I have watched many sudoku tutorial and nobody taught this method. Your video are very well explained logically and very well demonstrated with visual cues.
@devproco8063
@devproco8063 15 күн бұрын
Excellent explanation. I see so many how-to's that show what to look for but don't explain the exclusion logic. This is a very powerful demonstration and learning tool. Thank you.
@guru801
@guru801 11 ай бұрын
Never understood this so vividly Thank you so much 😊
@ianw2137
@ianw2137 23 күн бұрын
Excellent video - I’ve watched this video three times over the past week and today I finally found and solved an xy wing. It feels great to have spotted an xy wing and worked out the logic. I have been struggling with the xy concept for sometime and this video make total sense to me. Thank you.
@ralphmaynard8297
@ralphmaynard8297 Жыл бұрын
best explanation of the XY Wing I've come across. Thanks!
@noelwass4738
@noelwass4738 Ай бұрын
Thank you very much for these techniques. I have been learning the XY-wing and the related XYZ-wing from Learn Something and I am hoping this technique will help me solve sudokus that so far I have not been able to solve.
@sudokucafe
@sudokucafe Жыл бұрын
Great Lesson. XY wings are very hard to find (for me anyway). I enjoyed your explanation.
@trooks4481
@trooks4481 Жыл бұрын
Your instructional technique is excellent!
@vaidehimishra4351
@vaidehimishra4351 19 күн бұрын
Thank you so much!❤ This was a very well explained video❤
@bnewman2544
@bnewman2544 4 ай бұрын
This is best XY Wing example ever! I can actually do them now. Thank you!
@brianfielden9320
@brianfielden9320 5 ай бұрын
Excellent presentation. Spot on explanation...simple, elegant, easy to understand!
@rosalieskodje8542
@rosalieskodje8542 6 ай бұрын
How did the pivot cell jump from being 2368 to just 68 with no explanation?
@SlothRunClubReady_Set_No
@SlothRunClubReady_Set_No 5 ай бұрын
This is the best explanation I've come across! Thanks!
@louisanaclara
@louisanaclara 11 ай бұрын
Very clear explanation, with different examples. Thanks to you, i've got it at last! Many thanks.
@TheLifeOfJess
@TheLifeOfJess 2 ай бұрын
Ahh thank you so much! I finially get it 🎉❤ Great multiple examples, that’s what helped me understand the formula. Thank you again! So satisfying to unlock the puzzle
@greycesantos3093
@greycesantos3093 4 ай бұрын
Such great explanation, examples and practice! Really, really clear to understand. Thanks a lot!!!
@DeinaOKC
@DeinaOKC Жыл бұрын
I’ve been confusing y wings with swordfish. Your explanations are helping me so much!
@davidmagoon2562
@davidmagoon2562 7 ай бұрын
Great tutorial!
@seastheday1052
@seastheday1052 10 ай бұрын
Fantastic explanation! This is a very difficult topic to explain with clarity and rarely does the light go on in my head, like it did when watching this video. Thank you very much!
@ScottLRoyal
@ScottLRoyal Жыл бұрын
A Wonderful explanation. Thank You.
@pizzita_fps
@pizzita_fps 9 ай бұрын
best explanation of the XY Wing Thanks
@sastryramulavari4588
@sastryramulavari4588 Ай бұрын
excellent
@Pindi44
@Pindi44 8 ай бұрын
This looks like a powerful tool, very well explained by you, thank you. However, one needs practice in spotting the 3 cells.
@Achieve.cookie
@Achieve.cookie 4 ай бұрын
Very good explanation thank u so much mam
@hjeffrey668
@hjeffrey668 8 ай бұрын
很棒喔👍
@noelwass4738
@noelwass4738 Жыл бұрын
What I found tricky here was the reduction for eliminating the possibilities. Looking at example 1 the possibilities were (2368) for cell positioned at (2,3) of block (1,2). This was rapidly stated to be of only possible values (36). This was the pivot cell and so was an essential piece of the argument. I was struggling to see how the other possibilities were eliminated.
@gowthampavanaskar1889
@gowthampavanaskar1889 Жыл бұрын
Thank you!!!
@LearnSomethingNewEveryDay
@LearnSomethingNewEveryDay Жыл бұрын
My pleasure, and thank you for watching!
@charlottewebb3364
@charlottewebb3364 5 ай бұрын
Detailed and well explained. Gives me confidence to tackle some of the more challenging puzzles I am getting. Thanks very much for all your sudoku puzzles guides!
@hieutv.thebattlecats
@hieutv.thebattlecats Жыл бұрын
nice
@greenmanofkent
@greenmanofkent 11 күн бұрын
For example 1 - I don't see how this is a y-wing. Both of the wing cells have only two candidates, yes, but BOTH candidates in each of the wing cells are also in the pivot cell. That is until at 1:05 two candidates in the pivot cell magically disappear to make the pattern fit the definition. How did you know which of the 4 original candidates in the pivot cell to eliminate?
@kolst8406
@kolst8406 Жыл бұрын
I copied this puzzle a couple of months ago, stowed it away, and tried to solve it on my own this morning. I found a different y wing: cells 41, 63 (pivot) and 69 which combined eliminate the 469 in cell 61, leaving a 3 for that cell. Maybe technically it's not a y wing but I think it works.
@LearnSomethingNewEveryDay
@LearnSomethingNewEveryDay Жыл бұрын
Thanks for the comment kolst8406! Whatever works, right? There's more than one way to solve most any puzzle. Have a great day!
@FB-uj2jt
@FB-uj2jt Жыл бұрын
I love your easy learn way of explaining sodoku but canwe solve a sodoku puzzle without having to rely on x wings orxy wings
@akiladevi6225
@akiladevi6225 3 ай бұрын
In block 5 cell 7,8 also is peer cell Isn't it Mam In the third example
@lenoregorman4688
@lenoregorman4688 Күн бұрын
I can follow up to the point where you start eliminating numbers; I use probabilities which work 50% of the time, lol.
@HadiLounici
@HadiLounici 9 ай бұрын
2nd example was not needed as we had a 1,5 double which would have left a naked 7 and a naked 8 which would have solved it a lot quicker.
@betmenizorahovice4843
@betmenizorahovice4843 10 ай бұрын
if thats xy wing there is another one with the 79 in the middle box aka box 5, one wing is in box 2 contains 47 and the other wing is in the box 4 and contains 49, either way both box 2 and 4 could have number 4 but that solves nothing i wonder is it xy wing at all or it is but its just unusable xy wing someone ?
@BlueSky-qs3wp
@BlueSky-qs3wp Жыл бұрын
It looks to me that any of the three cells can be considered pivot cell while the other two wings, right?
@andystamas
@andystamas 3 ай бұрын
I was thinking the same thing.
@JonJacks
@JonJacks 11 ай бұрын
When you say the answer I see the solution as clear as day and understand until I get another example. Idk, maybe I need Jesus to help me every time.
@sadlemonissad1401
@sadlemonissad1401 3 ай бұрын
XY wing, Y wing, whatever, it looks like an L to me
@saganandroid4175
@saganandroid4175 Жыл бұрын
0:33 Instead of relying on Google first-page response, in the future how about curating/picking a clearer definition? Because Google's was awful. "unit".... okayyyy, what a uselessly broad term. Ugh. And how does it define "first"? It doesn't. If you're going to try to teach you have to use well-thought out materials that are appropriate to beginners. I think your videos have merit, but teaching is a skill that requires effort to think llike someone who knows little/nothing of the topic you are trying to teach. At 1:02 we see 6,B lose two candidates without explanation. You never explain HOW you spot an X/Y wing, they're just magically green now. Nor do you explain why that is the "pivot" cell (we have to guess it's related to intersection). Again, I think your vids have merit, but you need to proceed from the standpoint that the viewer does not know what you know.
@saganandroid4175
@saganandroid4175 Жыл бұрын
1:53 Seriously? SERIOUSLY? That's your explanation for the naming? Seriously thinking about unsubscribing.
@jodexxy
@jodexxy 6 ай бұрын
It is hard to find them. First i try to see the "bent triple" . And if i found one ,then i try to make the XY-wing.
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