Y-wing (XY Wing) - an Advanced Sudoku technique

  Рет қаралды 189,067

Sudoku.com

Sudoku.com

2 жыл бұрын

In this video you'll learn how to use the Y-wing strategy in a Sudoku game.
"Y-Wing" is an advanced strategy for Sudoku experts. It often comes up in the difficult puzzles and it may take you some time and practice to figure it out.
The "Y-Wing" technique is similar to "X-Wing", but is based on three corners instead of four. You can watch a video tutorial about "X-Wing" on our Sudoku.com channel as well.
Visit the Sudoku.com channel to check out more Sudoku rules and techniques.
If you are looking for Sudoku puzzles to solve, visit the sudoku.com website or download our Sudoku app from the App Store or Google Play: bit.ly/3Ho1cqE
#sudoku #sudokucom #sudokurules #sudokutechniques #xywing

Пікірлер: 48
@theodoreigbeyi352
@theodoreigbeyi352 19 күн бұрын
For people who don't know why there needs to be a 4 in one of the people pincers: the pivot cell is either a 3 or 8. Either of those options will remove a non-4 note in one of the pincers, guaranteeing that said pincer is a 4. And if any of the pincers is a 4, the cell in the 6th column and 9th row cannot be a 4 as well, since its either in the same row or same column as any of the pincers. Hope this helps. Dont know if i explained it well.
@vaibhavaram1307
@vaibhavaram1307 5 күн бұрын
You explained it perfectly
@williamkepraios986
@williamkepraios986 11 ай бұрын
I thought this was an excellent video. Short and easy to follow explanation. I am looking for more by them.
@imnotgonnasay3612
@imnotgonnasay3612 10 ай бұрын
Wow! Nice little trick! I tried watching someone else try to explain this technique but your video made so much more sense to me! Thank you so much!
@darcash1738
@darcash1738 7 күн бұрын
Note: should be learnt alongside X wing(including jellyfish/swordfish variants) and later, XYZ wing
@buttninjaflex
@buttninjaflex 8 ай бұрын
In row 8, there are two cells with a 4-5 pair. Why in the world is 4 not immediately removed from all cells in row 8, including the pincer cell?
@taurikroon3175
@taurikroon3175 7 ай бұрын
row 9*
@gjaeigjiajeg
@gjaeigjiajeg 2 ай бұрын
I get it!!! Thank you❤❤❤❤
@christafurden
@christafurden 25 күн бұрын
Dumb enough to be lost 45 seconds in, smart enough to realize how dumb I am 😑
@hiyoristroberi
@hiyoristroberi Ай бұрын
i already watch this and will forgot again
@manashigogoi2854
@manashigogoi2854 Жыл бұрын
If u find it complicated gain more experience by solving thousands of Sudoku, then u will understand it easily. If you are u beginner u might find it complicated.
@masdd7809
@masdd7809 Жыл бұрын
If i can solve thousands of sudoku than i dont need to see this video
@hello-oc2vh
@hello-oc2vh Жыл бұрын
@@masdd7809 haha
@PayneWaterStudio
@PayneWaterStudio 6 ай бұрын
Agree I bought a pocket Sudoku and I am on puzzle 43. I also do it on my phone
@dnd6075
@dnd6075 2 ай бұрын
ive solved hundreds++ of "evil" sudokus on websudoku i do it all in my head i dont use notes and ive never heard tell of this "technique" before it didnt make much sense to me, notes kind of doesnt make sense to me
@gjaeigjiajeg
@gjaeigjiajeg 2 ай бұрын
That's like saying doing 1+1 a thousand times will automatically make you understand how to do 6x9
@arunakhil7764
@arunakhil7764 2 ай бұрын
This was a good video but the clarity of the video is very low
@frankieJ810
@frankieJ810 Ай бұрын
Very good video, and I love that it is short and to the point. Too many of the Sudoku videos are drawn out for no reason.
@anm0l.18
@anm0l.18 Жыл бұрын
Actually they have their app and they recently started teaching (just providing) with new techniques everyday. I have been using the app consistently from around feb (148 days streak). But the way they try to teach is veryyyyy complex and they must provide simplified logic with it.
@Hahahaha-bo1ry
@Hahahaha-bo1ry Жыл бұрын
App name?
@anm0l.18
@anm0l.18 Жыл бұрын
@@Hahahaha-bo1ryjust "sudoku"
@tx12standstrong70
@tx12standstrong70 3 ай бұрын
Can you explain the Y a better way, doesn’t make sense when there are other cells with h 4, and two or more had the 4/5 in them? confused
@mariamontero5651
@mariamontero5651 2 ай бұрын
it is because that unique cell is connected with both pincers at the same time, while the other cells that you mention are related just with one pincer. So their existence is possible, but if you have a 4 in that bottom cell, you can not write a 4 in neither of the pincers, so it’s not coherent, so you need to delete it! :)
@dotunadeleye3328
@dotunadeleye3328 11 сағат бұрын
@@mariamontero5651I’m new to sudoku and this was the extra bit of explanation I needed to understand this technique. Thanks!
@TheLifeOfJess
@TheLifeOfJess 2 ай бұрын
I understand the Y wing trick but have found it only works sometimes. Has anyone else found this? I’m trying to see if I am doing something wrong. I’m currently doing an expert sudoku atm, but if I use the Y wing technique to eliminate the common number (9) in a cell that sees both pincers (and I check in the back of the book for the solution), then I would have totally messed up my game because the solution in the back of the book says the cell is a 9! So I can’t understand why the Y wing technique is suggesting that I should have eliminated the 9 😅. Anything I should be double checking or has anyone else come across this issue to?
@marcogonzalez8360
@marcogonzalez8360 Жыл бұрын
My doubts in if its possible, to search for the pincer in the same Block. A few mathematical reasoning can prove that wrong
@omibhoomika4327
@omibhoomika4327 9 ай бұрын
I can't make you to understand it
@johnevans6414
@johnevans6414 Ай бұрын
I kind of understand, but "y" wouldnt you eliminate the 4 from the top right on instead of the bottom right one? i mean one is 4 and 8 and the other is 4 and 5
@videospessoais7821
@videospessoais7821 Ай бұрын
that was my doubt too...
@johnevans6414
@johnevans6414 Ай бұрын
@@videospessoais7821 cuz it could also be lol i tried this method in a hard sudoku. I got it all filled out except for the last 2 spaces, and it was wrong. had to reset the puzzle
@user-zb4ow8ql7v
@user-zb4ow8ql7v 6 ай бұрын
You arbitrarily established that the common number in the pincers means that this number must be done away with in one of the pincers, leaving it to finally appear in the other pincer. Having laid down this condition, from the fourth cell in the sixth column cell (in row 9)) you removed the note (4) that is common in both pincers. You removed this note from the fourth cell because you assumed that the number common in the pincers can appear finally in only one of them. How do you know? I left the number 4 to appear in both pincers but didn't end up with an irreconcilable digit in the pivot. I gave a 4 to appear finally in each of the pincers and was left with 3 and 8 in the pivot, neither of which clashes with the 4 in each of the pincers. You based your solution on the assumption that in the pincers the common note 4 can finally appear in only one of the pincers. How do you prove that the common note 4 can finally appear in only one of the pincers? Prove that, and your solution is OK. I'm not saying that your solution isn't OK, it seems you made an assumption about the pincers which you guessed correctly.
@jmcmillon22
@jmcmillon22 2 ай бұрын
The note in 6th column, 9th row is removed because the common note 4 must appear in AT LEAST one of the pincers. If it is in one or both, then it it's impossible for the cell in 6th column 9th row to be a 4.
@azlizzie
@azlizzie 9 ай бұрын
There's definitely a piece of the explanation missing here. You could have shown how the pivot forces the pincers to be the shared value. But for my purposes I appreciate the explanation on what combos of cells I am looking for. Thanks!
@tchiffo
@tchiffo 8 ай бұрын
In the block where you located the pivot there is already a cell with the lonely note "8" which informs us that the only value the pivot can have is "3" and this affects the lower pincer that remains with only "4" as possible value... If all this is right than the two cells surrounding the "8" in the lowest row should contain both the value "5" which is impossible
@user-zb4ow8ql7v
@user-zb4ow8ql7v 6 ай бұрын
I ignored that, and found there are at least two other incompatibles.
@thomascarlton82
@thomascarlton82 3 күн бұрын
It makes me mad because its so simple. I sit and want to come to these myself but i end up sitting for hours not making and new strategies smh
@EdwinKalkman
@EdwinKalkman 2 жыл бұрын
complex allemaal
@Julie-jl2kk
@Julie-jl2kk 2 ай бұрын
i dont understand wtf
@Sch0k0beer
@Sch0k0beer 2 ай бұрын
Doesn‘t make sense.
@Youssef-kx4cd
@Youssef-kx4cd Жыл бұрын
such a bad way to teach anything tbh
@oyss9809
@oyss9809 9 ай бұрын
Why
@glockdookie5231
@glockdookie5231 8 ай бұрын
Your nig is showing
@p.p.burnell7294
@p.p.burnell7294 8 ай бұрын
Why nigga
@princessharuchan1386
@princessharuchan1386 8 ай бұрын
That was rude, I found this helpful
@ericj199
@ericj199 4 ай бұрын
Awh why so?
@flipOverTheirTables
@flipOverTheirTables Ай бұрын
What a stupid technique. The odds of these conditions lining up is rare. You’ll never use this
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