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Sudoku tutorial #67 The XY wing and Y wing. Are they the same?
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- เผยแพร่เมื่อ 1 ส.ค. 2024
- #sudoku #sudokuguy #learnsudoku sudokuguy.com
Solving sudoku can be fun. This is part of a fun step by step video course on how to solve sudoku puzzles from beginners to advanced levels. It's FREE! If you liked ti please click on the Thumbs up icon under the video
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In this short video .I explain what these patterns are, and how they work to eliminate small numbers.
NOTE In an XY wing each cell must have 2 small numbers (bivalue cells)
NOTE The 3 cells in an XY wing must have a 3X3 .e.i. each cell must have 2 out of the 3 small number which make up a 3X3 e.g. 34, 46, 36
/ sudoku-guy-6. .
Thought of the day: Keeping busy is better than being idle.
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For months of confusion on this, you have finally made it clear for me. Thank you sir.
Thanks Arjun. So glad you found my site."the most popular site online to learn sudoku" Please share with others, give me a thumbs up below the video, and subscribe and click the bell by the subscribe button. By doing so you will be notified by youtube when I upload a new video. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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I'm in Australia. Thanks for your videos. I used to just do easy ones but learning techniques, spotting X-wings etc. has made a big difference and I can now do many hard ones.
Great to hear! There is more advanced tutorials coming. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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JUST BECAUSE OF YOU, I HAVE PURCHASE ALL OF THE SUDOKU BOOKS AT MY DOLLAR TREE. I AM READY MY FRIEND.
Great, but if dollar tree is a dollar store, be careful as some of them are cheap because they may not be very good in particular in telling you the puzzles are easy yet they are not. So much depends on how many tricks an techniques you know. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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This is so helpful! I feel like most tutorials just show you a simple example, and you started that way to make sure we grasp the concept, and THEN you continued to show us how to find it in a sample puzzle section and what to look for, how to spot it, etc. So helpful, thank you so much!
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I saw your last video 4-5 years ago, and I am glad to see that you are still alive and teaching sudoku. ❤️
Welcome back! NIKHL Yes I am 78 and still learning and sharing. So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Thank you for teaching us!!! I started playing sudoku again to deal with stress from everything going in the world right now and this has been a big help. Thank you so much!
Yes you are right Cerise and solving sudoku keeps your mind busy and off the troubles of our world. Happy to help! So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Thanks again. I always enjoy these. Much appreciated :)
Glad you like them Jim thanks for sitting in on the premier. Next month is a new tutorial on strong links and weak links which enable you to remove small numbers as well. the more tricks like this you knw the etter solver you will become.
Thank you so much from the teachings. You are the best sudoku teacher ever. ❤️
Wow, thank you Daniel So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Thank you for your videos. I live in 🇵🇹 portugal but am from south africa 🇿🇦. I’ve been doing sudoku for many years but only easy ones. Since I saw your clear way of teaching, I decided to up my game. Thank you, very enjoyable. 💐
so glad you haved decided to up your game. You will get much enjoyment when you solve a harder puzzle. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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You are an amazing teacher. I love your style of teaching. God bless you.
Thank you so much! Iram So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Thank U for sharing your knowlegde Robin! You are a good teacher. Always look forward to your tutorials!,,👍😉
You are so welcome! Gaute. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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I'm only watching your videos now. They are quite good. Good production and unique + comprehensive explanations that others videos fall short on. Thanks for posting this!
Glad you like them!
That was extremely helpful! Thank you, sir!
Glad it helped! So glad you found my site." the most popular site online to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step-by-step how to solve. For a list of videos go here:
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This was such a fantastic explanation! Thank you so much!!!
My pleasure brandon. Please give me a thumbs up at the bottom of the video if you enjoyed it. Thanks. th-cam.com/users/sudokuguy
Fantastic technique to come handy in "Expert" level puzzle. Thanks so much for explaining the concept in your usual "fun and engrossing" simplicity.
You give a "Rule" in language form... Will be good to have it for this as well...
Can't thank you enough. Appreciations from Mumbai, India.
My pleasure! I have been to Bombay many years ago. Hang in there. With practice you can improve. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Love your videos! Another great lesson.
Glad you like them! and thanks for your support.
Excellent examples, thank you!
You're very welcome! Robin
I finally understood what a pivot is! Thank you! ❤
My pleasure/ So glad you found my site."the most popular site online to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. For a list of videos go here:
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You aree sooo sweet and i love the way you teach, really appreciated☺️
So nice of you Berna. So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Am Indian. I learnt soduku from ur U Tube sessions. Now I can solve medium puzzles but get stuck with hard ones. Thank u for ur encouragement.
Hang in there Ramdas. There is much to learn and practice helps. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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Thank you. Really well explained :)
Glad it was helpful! Also So glad you found my site."the most popular site online to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. For a list of videos go here:
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You did some exclusive research on sudoku, awesome!
Glad you think so! Aaron thanks for your support. I am addicted and always looking to learn. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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This is very helpful! I’m struggling to learn y wings and this made it make sense, thank you!
Glad it was helpful! So glad you found my site."the most popular site online to learn sudoku" Please share with others, give me a thumbs up below the video, and subscribe and click the bell by the subscribe button. By doing so you will be notified by youtube when I upload a new video. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed. th-cam.com/users/sudokuguy
Can you help me then? 😵💫 How do you determine the cells involved? How do you determine the “pivot”? How does saying what number “could” be in a cell allow you to eliminate candidates in the other cells?
Hi.Robin I m Mohammad Hafeez k Raja from Pakistan.i use to see ur tutorial for sudoku.I have learned many tactics to solve this puzzles as u demonstrate in a professional way.thanks
So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
th-cam.com/channels/d8JaOdfEWcJOtwG6YayW0wGlad.html to hear that
Thank you! I always find these hard to see
No problem! It takes practice looking for them Once you get into the habit it becomes easie... hang in ther Ray So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Nice lesson. Thank you.
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Wow‼️ THANKS‼️I am going to watch this several times‼️👍✅🤗
Glad you enjoyed it. Yes mike i have found that it is a good idea to look at the new concepts , tricks and techniques more than once as it take practice. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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@@SudokuGuy I started working Sudoku this past March and really like it, I have worked over 500 puzzles from easy, medium, hard and challenger. Your video have helped a lot‼️‼️ I have watched every one of them at least once and many two or three times‼️✅👍
Hi, I am Ayaan. I am 8 year old.I live in Dubai. I have learnt sudoku from watching your TH-cam videos.Thank you for helping me to learn sudoku.Now I can solve medium sudokus.I still struggle to solve hard sudoku .
Keep it up So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Very nice teaching and explanations of two wings. A new approach to very difficult puzzle
Glad you think so! So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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@@SudokuGuy thanks
Wonderful video!
Thank you! Cheers! So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Hi am from Mauritius..thank you for all information
So nice of you You are the first person who I know of who comes from Mauritius. Wonderful country. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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Thank you so much you're awesome
You are so welcome Andie. So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Hello Robin! Luv your videos and luv to play Sudoku. Is there a video that would help us to ‘find the pivot?The rest makes sense after you find it. Thanks Joe
Not yet! It is a matter of searching and the key is to look for bi value cells with only 2 little numbers and look for 3 cells which make a 3X3. Good luck ,the more you look and prqctice the better you will become. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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Thank you.
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I love your bowtie! Sudoku is a good brain exercise! You always looked full of energy in the videos. You must love Sudoku! 😀😊😉
I do! I'm addicted.! So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Hi Robin, Could you please do a video about strong and weak links and also about AIC (Alternate Interference Chain) type 1 and 2.
Funny you should ask. Just today I filmed that topic and it will be premiered in Nov.
Hello first I want to thank you for all your videos, they are great. I've been trying to master the XY Wing or Y wing. I watched your video and I thought that in the second example the Pivot should of been 89 and the wings 58 & 59 and in the third example the pivot should of been 69 and the wings 49 and 46, so obviously I'm still getting confused. Is there anyway you can explain what factors determine the pivot (because it seems to me that is the starting area to determines how to proceed to solve).
Great suggestion!The pivot must always have a centre of the clock with 2 arms I hope this helps. So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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The pivot MUST be able to see both of the wings. In the second example 89 cannot be the pivot because it cannot see 59. Similarly, in the third example 69 cannot be the pivot because it cannot see 46.
The first criterion of an Xwing must be that all the 3 players of its body should have 3 by-valued cells ; of the 2 numbers of the Pivot cell one will go to the 2nd cell and the other will go to the 3rd cell. These two cells will induct a common number. The Pivot cell should be visible to and from these two cells (extremity of the two wings of a bird), but these two cells, other than the pivot cell, should not be visible to each other. Am I right?
Yes!
There is nothing wrong with the 2 non-pivot cells being visible to each other. But this would rarely happen, because then all three cells would be in the same row, column or block, and you would use a simpler method than this to eliminate other possible numbers in that same row, column or block.
I also subscribed your channel. 😜😉😊
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Good
Good Thanks for your inteest.
Greetings from hot but Covid Bahamas☹ i am still confused🙄 the word IF and identifying the pivot🤔 is worrying as it seems there is some guessing involved? Is the pivot always top left? Love your tutorials, still learning, got yo keep my mind sharp😂😂😂
The key is to watch for 3 cells with only 2 small numbers and these make up a 3X3 It takes practice to locatde these but with practice you will improve in identifying the pivot. Hang in there ....to begin with you have to spend some time looking It gets better with practice. Peter. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below..
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@@SudokuGuy Thanks so much, will keep at it. I mess up a puzzle try again, mess up, and such satisfaction when it comes together. Cheers. 🍻🍻
@Peter Kemp The pivot is not always top left. It can be top right, bottom right or bottom left as well, or even “left middle” or “right middle.” (An example of left middle would be having the pivot in R4C1 and the other two cells in R6C3 and R1C1.) You are trying to find three cells that are connected together by the pivot (in other words both of the secondary cells can see the pivot) under the conditions that each of these three possible cells contains exactly two of three possible numbers, such as 2, 3 and 8 in the example in the tutorial at 4:17.
I am really struggling to work out which pair is the pivot. You use the expression that a pair of numbers can 'see' the other numbers. What defines that it can 'see' the other numbers? At 5 mins on this video you have an example of a pivot where it has big numbers blocking the space between one of its hands, so this is not defining 'to see' the other numbers.
Yes it is possible to say it can "see". the "see' concept is difficult to grasp and I appreciate your confusion. The pivot can be found when each number in the pivot see a similar number in the other 2 cells. usually within a block or within a row or column. I suggest you look at tutorial #79, go to min 37 and watch as I explain the XY wing better. I hope this helps. Hang in there. It takes practice to find pivots.Go to my website suokuguy.com scroll down to index of techniques and it will list examples. click on the blue number and it will take you to the particular video.
I’m not sure this helps. How did you determine the cells involved? How did you determine the “pivot”? How does saying what number “could” be in a cell allow you to eliminate candidates in the other cells?
See my comments below. All the best ...hang in there. Go to my website scroll down to techniques and tricks and click on tutorials involving the SY wing.
Sir tell about Sudoku bases
Sorry i don't understand what you are asking. So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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@@SudokuGuy OK sir👍👍👍👍👍👍👍👍👍👍
I sure wish I had your brain!
I wish my brain was better 80yrs old and ti's not as good as it used to b e but I keep doing sudoku because it is important for memory all the best jan So glad you found my site. “the most popular site online to learn sudoku”
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I am stuck on a puzzle and can’t seem to unstuck it. I tried Sudoku solvers on google but every one of them gave me the direct answer and not the logical reason. Can i send you the sudoku?
Yes Send it to my web site scroll down to contact. It may take time for me to get to it with over 8 million viewers. So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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Sir what is your name? What country are you from?
Robn Jarman Australia So glad you found my site,” the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step how to solve. You can find all of my videos by clicking on the link below.
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Hello Sudoku Guy, I am here again, reserve my seat, follow up with you, as more work, as a thanks and appreciation. And don't forget to record a flash visit to my channel, which talks about the same topic Sudoku puzzle
OK!!! I found you note in another part of the site.?????
At start 4:19 min, your explanation is very confusing because you don't concentrate on the common value in the wings.
You better can say: "if the pivot is 2 then the right wing is 8, if the pivot is 3 then the left wing is 8. In both cases the 8 on r1c9 can not contain the 8 because both wings can see cel r1c9."
Well said you are right. Thaks for your comment.
I through you are alen stauker who invented first computer name christhopher are you a mathemathician and he also invented this criss cross game what are you teaching us in your whole channel
How to solve sudoku from easy to difficult
Sir I am 13 and from India. U can avoid putting matching pair tutorial or 3x3 because let someone think theirselves. Teaching is not always the right way for developing mind and sudoku is for thinking and fire mind relaxing
Noted So glad you found my site."the most popular site on line to learn sudoku" Please share with others, subscribe and click the bell by the subscribe button. (It’s FREE) Have fun as you learn step by step how to solve. Below is my home page with all the videos listed.
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@@SudokuGuy u are such a good person
Sorry, too complicated.
Sorry to read that. This is an advanced technique and it take practice to spot them. Ron I suggest you master the medium puzzles first as in this tutorial I am assuming you know all that I have covered. Ron you can be successful. Go to the link below and find all of the tutorials and lessons that are not as complicated. So glad you found my site, “the most popular site on line to learn sudoku” Please tell others, subscribe and click the bell by the subscribe button. Have fun as you learn step by step to solve. You can view all of my videos here:
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Good
Thanks You can do it Keep at it and you will bget better for sure.
Good
Thanks