Solving a Hard Level Sudoku Puzzle with Skyscraper Swordfish AND Forced Chains!!!

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  • Опубліковано 3 лют 2025

КОМЕНТАРІ • 71

  • @SmartHobbies
    @SmartHobbies Рік тому +11

    I enjoy your animations and approach to solving, quite methodical. Thanks for featuring this puzzle that had multiple advanced strategies.

  • @wendys9755
    @wendys9755 Рік тому

    Thanks!

  • @martarubiotexeira3628
    @martarubiotexeira3628 Рік тому +4

    One of the best tutorials for Sudoku I have ever encountered! I have subscribed to follow up on the remaining lessons 🙂

  • @tikkytumbo4851
    @tikkytumbo4851 Рік тому

    Thanks!

  • @vetman98
    @vetman98 Рік тому +1

    Great Example of all 3 techniques. . Thank you for the videos

  • @arvidschu7510
    @arvidschu7510 10 місяців тому +1

    One question to 11:54. Why is this a naked Single? Why can‘t the 8 be in Column 8 as well?

    • @twed57
      @twed57 9 місяців тому +1

      Basically it was a naked single because none of the other numbers could have been put in this cell. The other 8's in the block don't matter.

  • @vanessakitty8867
    @vanessakitty8867 2 місяці тому

    TY for this one. I used SET around the corners using Aad's SET patterns. It was truly fun.

  • @wendys9755
    @wendys9755 Рік тому

    Love these videos - thanks so much for making them and hoping to up my sudoku game with some more practice. The color coding for the what-if scenario was very helpful.

  • @tetiana7868
    @tetiana7868 11 місяців тому

    Great tutorial! Thank you

  • @janisdixon1268
    @janisdixon1268 Рік тому

    Best ever tutorial. Thanks

  • @elifhentschel
    @elifhentschel Рік тому

    Amazing! Thank you for this video! Very clearly explained. 👏

  • @jpsmishra6001
    @jpsmishra6001 3 місяці тому

    Thanks for explaining so well, at times repeating elimination technique.

  • @jvlm3091
    @jvlm3091 25 днів тому

    Good animations and thorough explanations. The 1 was available from the very beginning (col 7 row 9); it's distracting when such an obvious solve is left off for over 16 minutes. After the 1 then other easy solves follow. Overall, excellent video; thanks!

  • @anwarhasankhan1821
    @anwarhasankhan1821 Рік тому

    Very Very thanks for giving me much knowledge sloveing sudoku

  • @YT_Ludde
    @YT_Ludde Рік тому +8

    in the begining you could have put a 1 in column 9, cell 7

  • @xmatias9
    @xmatias9 Рік тому

    We need more of this serieeeeees

  • @anandarao8942
    @anandarao8942 Рік тому

    Very hard one .. I appreciate your skills in solving the puzzle.. could not understood how 2 came in 8th block.. once again thanks for the detailed explanation.🙏

  • @andym5900
    @andym5900 17 днів тому

    Hi do you have a recommend list of tutorials to follow ?
    Once I’ve done Snyder unless it’s obvious I’m done
    I’ve never been able to spot a Y or skyscraper etc

  • @Javaman92
    @Javaman92 Рік тому +34

    I guess it didn't bother anyone else that she missed placing the 1 in block 9 right in the beginning. Then I miss a lot of stuff myself so I can't talk too much. But I kept seeing it and expecting her to see it... lol

    • @hatespeach1311
      @hatespeach1311 Рік тому +5

      Like heartburn. And it was the last block she did lmao i was so relieved when she finally came to it

    • @Thegodiva1995
      @Thegodiva1995 Рік тому

      Yes. Bitch ass made an effort to teach the whole process but overlooked the most simple thing. Really bothers me.

    • @Sososewist
      @Sososewist Рік тому +2

      It got to me right away. Why didn’t she her me yelling? It happens.

    • @PhillipFlop3327
      @PhillipFlop3327 11 місяців тому +3

      Yes!!! Drove me nuts lmao my cat was looking at me like, why are you yelling at your phone? 😂

    • @darshnadahiya5169
      @darshnadahiya5169 10 місяців тому +2

      True🤣🤣

  • @a_son_of_light
    @a_son_of_light 5 місяців тому

    I worked this out using Hodoku, and when I got stuck, it found a 2 string kite, the skyscraper, and a W wing. I'm still learning to find these advanced patterns and remember the rules.

  • @sinulariasin4887
    @sinulariasin4887 Рік тому +1

    Yeah, I learned something…..I’d rather watch you struggle than me 😋lol

  • @georgesthibaudeau1533
    @georgesthibaudeau1533 Рік тому +2

    I did this without notations and solved it on the bais of the 27 pair quite visible in row 8 at col 2 and 7, plus the additional 27 bi-value cell at r2c2. A bit of mental gym to examine the restrictions this implied for the 2s and 7s elswhere followed by a couple of alternative scenarios and bingo, i got it and completed the puzzle in 20 minutes. No fishing for swordfish or inspection of high rise buildings for me, I am too dumb to see that !

  • @vidyanandsinha8879
    @vidyanandsinha8879 6 місяців тому

    Very hard
    Thank you

  • @charlottewebb3364
    @charlottewebb3364 Рік тому

    Good explanation of the skyscraper and swordfish. I like your logical approach.
    What sudoku software did you use for presentation?

  • @BeneathTheMound
    @BeneathTheMound Рік тому

    Hello and thank you for your heloful videos. Thanks to your lessons, the sudoko puzzles I have been doing are now too easy. Can you please recommend a digital platform for challenging puzzles?

  • @gmanpublications
    @gmanpublications Рік тому

    Great Video. I am enjoying watching you solve the puzzle. I was wondering you had mentioned that this puzzle was in HoDoKu; how did you get rid of the candidates but still be able to add them back later on? I am asking because when I hid the candidates but could not add them when I wanted to.

  • @marnak24
    @marnak24 Рік тому

    When doing the chain, do you just randomly pick a cell to check? Do you check the chain only using cells with 2 candidates only? Thanks! LOVE your videos.

  • @gauravipal9518
    @gauravipal9518 Рік тому +1

    When you were scanning for 1s you missed a chance to put the 1 in cell I7.

  • @charliedontsurf-y1d
    @charliedontsurf-y1d 10 місяців тому

    Is this technique Master level or Fiendish or Extreme ?

  • @nayfen5767
    @nayfen5767 8 місяців тому

    The last technique used is not a forcing chain, it's a w-wing though

  • @DieDieEla
    @DieDieEla 9 місяців тому

    Snyder notation can be done with the 9 in block 7!!!

  • @fubaralakbar6800
    @fubaralakbar6800 Рік тому

    12:06 Why can't column 9's 4 be at row 8?

    • @LearnSomethingNewEveryDay
      @LearnSomethingNewEveryDay  Рік тому +2

      Because the cell in row 2 column 9 can ONLY be a 4 or an 8, and since we just place the 8 in that column, then it MUST be a 4. Check that cell and you'll see it can only be a 4 or 8. Once the 8 is eliminated, it has to be a 4.

    • @LearnSomethingNewEveryDay
      @LearnSomethingNewEveryDay  Рік тому +1

      no luck, just good pencil marking. That cell could only be a 4 or 8, so once the 8 is eliminated, it has to be a 4! Sorry I didn't explain that as I was doing it.

  • @andreeacostea7267
    @andreeacostea7267 4 місяці тому

    I had a Bug+1 situation cuz‘ I had already removed the 1 from R1C7 which solved the puzzle quicker

  • @brucebeaton1351
    @brucebeaton1351 Рік тому

    Why was the 5 excluded from Cell A1 from the beginning? that messed up the explanation of the swordfish as it seemed illogical to me

  • @milkom2021
    @milkom2021 Рік тому

    Very entertaining puzzle with yet another good job in patiently teaching the viewers how to find their way through it. And btw, that particular type of forced chain is called W-Wing

  • @syedshahalam1
    @syedshahalam1 4 місяці тому

    Can we send you our unsolved puzzle?

  • @TimT2024
    @TimT2024 7 місяців тому

    You're a good teacher but I did this puzzle without any strategies an guessing.

  • @harshitmaurya6143
    @harshitmaurya6143 Рік тому

    Hello Mam, I stuck in a Sudoku puzzle. Can you help me to solve it ?

  • @jakuba.tesinsky9446
    @jakuba.tesinsky9446 Рік тому +1

    I think it is better not to mix "Snyder" notation and candidates. I prefer that candidates are filled in to the centre.

  • @YolaResa
    @YolaResa Рік тому

    12:05 - "This cell has to be a 4" ...ummm why is that? how did you come to that conclusion? As thorough as you are, you never explained that one.

    • @LearnSomethingNewEveryDay
      @LearnSomethingNewEveryDay  Рік тому +1

      Thanks Yola for the question. If you look at the pencil notation, that cell was a 4,8. Since we just placed an 8 above it in the same column and block, it can no longer be an 8, so it HAS to be a 4! Hope that helps!

  • @eduardopaz795
    @eduardopaz795 Рік тому +1

    Candidate 1 from column 9 should not be there.

  • @sandromoino2804
    @sandromoino2804 5 місяців тому

    Am I the only one that thinks that the "what if" strategy is not fair?

  • @jakuba.tesinsky9446
    @jakuba.tesinsky9446 Рік тому

    I beleive that the swordfish on 2s does not work it is explained. Assuming 2 in r1C1 implies that there is not 2 in r1c5, but it doe NOT imply the 2 is in r4c5, it can very well be elsewhere in the central box.

    • @michelemoneywell8765
      @michelemoneywell8765 Місяць тому

      Go back to 24:09. In Rows 1, 4, and 9, there are only 2 places a 2 can go. You ask why can't there be a 2 in r5c5. Go around the other way from the clockwise way she explained.
      a 2 in R1C1 = no 2 in r9c1
      a 2 in R9c9 = no 2 in r4c9. a 2 in r4c5 = no 2 in r1c5.

  • @Freakybowlingpins
    @Freakybowlingpins 23 дні тому

    It hurts to see she can't see the 1 in block 9

  • @betmenizorahovice4843
    @betmenizorahovice4843 Рік тому

    i know that you are a twin sister of professor Snape from Harry Potter dont lie to us ! :D

  • @andrewgjennings
    @andrewgjennings Місяць тому

    I can't bear to watch... the missed 1's on the very first try

  • @christopherknee5756
    @christopherknee5756 Рік тому +1

    I stopped watching at 0:59 because it made no sense to ignore the 1 in box 6!

  • @jwstanley2645
    @jwstanley2645 Рік тому

    Moving on from 1s to 2s, you did not look at all of the given 1's. Had you done so, you would have finalized the 1 in the lower-right block and pencilled the 1s in the upper right block. By starting a step but not finishing it, well, not so good, eh?

  • @peatmoss4415
    @peatmoss4415 Рік тому

    Pitiful just pitiful .... first move of ones missed the one in block nine.

  • @MegaBaror
    @MegaBaror 10 місяців тому

    Vos explications sont très très très longues. Beaucoup de paroles bla bla bla.