'Hard' sudoku made easy - with this simple method
2019 ж. 15 Нау.
1 869 896 Рет қаралды
We've been sent a NYT 'hard' puzzle - but it turns out not to be too hard after all. #Hardnothard
We've been sent a NYT 'hard' puzzle - but it turns out not to be too hard after all. #Hardnothard
It's 2:00am...... I have no idea how I got here, I don't even play Sudoku, loved the video though.
xxWaffleLordxx same. I gotta wake up in 5 hours
its 230 am here. I don't play sudoku either. but I just got incredibly stoned after work.... That's why im here
hahahahaha same
@@micahparker2456 bro same, its 4am, got high as fuck and ended up here lmao
xxd same here, why dafaq was this recommended to me? i have never ever done sudoku before, but can't be mad cuz it was a fkn amazing video
This was in my recommendations. I don't even play Sudoku. And yet, I was taken on an adventure by this lovely man. He showed me the solution to a hard sudoku puzzle and I was interested and even laughed a few times along the way. I never thought the soothing voice of a grown man paired with a puzzle game I don't even play could bring me any form of joy. What a strangely wholesome video, thank you!
Agreed! And such a wholesome comment!
Ah, so that must have been you at 13:39.
A.I. is getting creepy, but in a lull you into sleep/death way..
this is exactly how i found this channel and now im a sudoku addict
The Algorithm knows you better than yourself.
Me: Why is this in my recommended? I haven’t played sudoku since middle school. Also me: watches entire video.
College for me but yeah, same thing lol It's kinda creepy how KZhead can guess with good accuracy what we might like to view next. Often times it is something I haven't thought about or done in years.
Jax King was
🤣👍
Shit, I didn't even realise the whole "pair" thing was something that you could work out. Should've been obvious but I just never knew. Thank you, random youtube recommendations, and thank you, CtC.
and of course you can expand this to a group of 3 and more
@@josephle5373 Mind blown tbh. I've watched a few of their other vids and I'm less capable of wrapping my head around some of the other methods, but this pair thing is so painfully obvious, it's easy to understand.
1|2|3 4|5|6 7|8|9 4|5|6 7|8|9 1|2|3 7|8|9 1|2|3 4|5| guess?
@@commentfreely5443 ?
@@commentfreely5443 6?
So I was taught how to solve sudokus with my Nan when I was very little, I’d only do the easy ones obviously and I never really seem to finish anything harder than a medium even now. But watching you do that and learning about that little trick (I never even used to utilise the pencil thing) really made me think about my Nan and smile. She passed away four years ago now and was a huge part of my life. I don’t quite know how this got on my recommended but I really really needed this. It’s odd how these things work. Thank you for making my day in the most unexpected way!
That’s so sweet I’m sorry your nan passed away. She will always be with you🙏😇
Totally! Just knew how the pencil notation actually works
I like the sound his keyboard makes. Clickity clack.
ASMR
You'll love listening to some cherry mx blue keyboards then Or even cherry mx reds sound nice
Haha I too like it
Hot hands at a dice game
qwerty
I actually managed to complete the puzzle. It took me much longer than you did though. It took me over an hour, but I am still proud that I finished it on my own.
Good job
It takes me days so yes you should be proud!!
I did too, even used the ''x-wing method'' to solve for three in the top of the grid!
to be fair, he cut his video when he got stuck, so we don't know how much time it actually took for him
i’m proud of you too!
this dude will be super popular in the retirement home when everyone gets stuck on the sunday paper sudoku
I thought crossword puzzles were the most popular choice amongst older folks.
is better youdoku.net
When the threat of forgetting what you’re doing is real AF
He will get all the ladies
Screw bingo, right?
That was very good, i liked the way you explained your thoughts because some don't and expect me to know. Thanks mate.
Sudoku is my favorite game
@@BriarDaisySkye : Yes i enjoy trying to solve 'em but honest i do struggle with some or fail to finish. I understand X wings but jellyfish and things like that are beyond me. Have you tried 'Sudoku X' they get the brain working for sure.
A year ago I stumbled upon this video by pure chance. I've never even played sudoku before. Somehow I ended up watching the whole thing, got hooked on sudoku, subscribed to Cracking The Cryptic, started solving sudokus every day, even got into Sandwich, Thermo, Star Battles, Kakuru, Akari, you name it.. And almost a year later, I'm still subscribed. It's crazy how the world works.
Never heard of the rest but I have played Sudoku for a while now. The pair method, not sure if that is what it is called, upped my game a lot.
How is your life improved by doing all these ? Intelligence ? Career ? Other talents ? Wisdom ? Maturity ? Do you feel significant improvement ?
@@stabgan It's called having fun. It's what hobbies are for. Try it some time.
@@stabgan Except for Career... Yes to all the other questions.
Another great brain tester is Logic Puzzles.
It was great to see how you uncover hidden pairs. I put way too many numbers as possibles in the boxes and confuse myself. Your way lessens the confusion so I’m going to try it.
I did that and after 4 hours I can confidently say it didnt work, or I am too stupid for sudoku
Just downloaded a sudoku app 4 months ago. I’ve been having a ball with that (it’s especially easy because it color codes each digit to help better identify) but I’ve been having trouble with books. I came here to find some inspiration since one particular book’s FIRST PUZZLE has me stumped! I wanted to see an experienced strategy, so I copied this puzzle onto a scrap of paper in pencil and pen and tried it before watching. When I got stumped, I’d push play. When you had a run of numbers, I’d write them in a different color and pause so I could understand why you found it and I didn’t. I would also take the numbers you gave and try to solve again, and once I came to a stop, I pushed play again. All in all, you gave me 12 numbers (which I don’t know if that’s good or bad) and I was able to solve the rest! It’s given me a few new strategies to apply to my game and was a fun way to learn. Thanks!
Oh, that was FUN. I shouted some numbers at you, and then you tapped them into place.Thanks.
I was going to say the ASMR application of this video is highly underrated, but then I saw it had 1.3M views...
Mark at 6:27: "Well done if you're picking up the next stage ahead of me, that's quite possible, we're not superhuman." Me: Indeed not, but I am sleepy human.
its 20 past midnight and i havent played sudoku in about 5 years... glad youtube recomended me this, had a great time
I've been playing sudoku when I can't sleep, it ends up keeping me up even later if I can't solve it. I like the big brain solutions you guys come up with!
Sudoku is so great. Thanks to this channel I got into sudoku a couple weeks ago and all my free time has gone into it since then. The moment when you see a logical connection between the numbers is just so exhilarating, it’s very addictive. It’s like you find the one domino that can be knocked down and everything follows from that discovery. I always have loved puzzles and getting into sudoku has been such a treasure because it truly is the best puzzle game ever, in my opinion.
I love how you go about solving this in a completely different order than I did, it was really exciting watching your process
Procrastinating uni for several hours. Now I'm here, watching the whole video...
Scaling matched pairs to 4 numbers/pairs/cells in the left center block. My head exploded. I almost used a thumb-up emoji, but interpretations vary. ⚡
This is the same method I use when starting a puzzle, but I'm happy to hear it articulated so well
I am an occasional Soduko fan. Suddenly decided to look it up on KZhead. Watched a couple, then found this. The hard ones take me a long time. The pairs in your solution are a BIG help. Thank you!
Your thought process is very reasonable and approachable. This inspires confidence to go ahead and try a difficult Sudoku puzzle!
Amazing!!! I never use this pairing method before. Thanks for the guidance.
Enjoyed this. I learned how to properly use pairs to eliminate possibilities.
This was so impressive! I always neglected this pencil option but obviously I simply wasn't advanced enough to understand it's full meaning. I need to go find my sudoku puzzle magazine immediately!
For some reason a two year old video of yours came up in my recommendations. I started watching the channel not long after this, a few months before the plague began, and it's interesting to see what we called kind of hard, back then. Pairs being the key to a puzzle is such a quaint concept to me, now, living in the age of the Phistomefel Ring.
It took me an hour to finish it and this dude finished it in 15 MINUTES. I have so much respect for him
He cut some part where he got stuck. Still, his flow overall was very good
I do appreciate the pairs technique that you use. I usually solve comparatively quickly, but I have not ever made the decision to only note pairs. Instead, I note everything and then start visualizing pairs and eliminating notes based on the pairs. It will most likely be a time saver to instead only note pairs. Thank you.
very helpful! i've always avoided the harder ones because i wasn't sure how to solve them, but keeping notes of the possibilities would help any puzzle get done faster it seems
By golly gosh, you work these out fast. I was completing the sudoku with you. I worked out as much as I could then unpaused the video to get some hints then paused again to see how much more I could do. Needed your help twice. Great video. Learnt a new technique to sudoku.
Im in love Thanks for teaching me this method..I feel so young not knowing these tricks :/
Very interesting! Thanks for your insights, which go a long way to helping me improve my game!
Just posting to say that I started watching this video to try and help me a little more in playing Sudoku on higher difficulties. About half way through I said to myself "this isn't showing me anything at all" stopped watching and went to play a harder game. I actually ended up using the method you showed and solved the puzzle in about 14 minutes with no errors. So sorry for dismissing your video, and thank you very much, it was actually really helpful 👍
I love it when the algorithm throws up one of these retro puzzles! It’s amazing to see how far the channel has come in four years
I’ve finished this puzzle in just under 9 minutes. Wonderful puzzle, and wonderful job solving it good sir. 👍
This is so helpful, I always struggle with deciding which pair to eliminate, so I think I over-complicate things for myself sometimes.
This was very helpful because I never could figure out what the smaller number option was for. Thanks. 👍
I honestly haven’t played sudoku in years but I love watching these videos, very interesting to me for some reason
This is the first time I've watched an older CtC video, and I'm amazed at how much _younger_ Mark looks today. I don't know if it's the camera, the kids getting older, or if he's just going back in time before our very eyes and that's why he's so good at solving puzzles. Anyway, it's a lot of fun to see how much the channel and the techniques have evolved. Well done!
He cheats at 7:28, as usual.
Is it only me? But I was so distracted by his failure to eliminate that 5 in the lowest right corner box.
You were not alone but I still enjoyed the journey :)
I can imagine if he didn't have to talk and explain every move in this video his focus would of more likely to found it.
@@Jamac007 lol ... I know. But it felt like an itch that I couldn't reach.
@arnab ray I consider myself a little bit above beginner. I came here to learn additional skills especially to tackle the diabolical ones. I want to do less jottings and notes.
This was brilliant. I do play sudoku sometimes but I suck at it most of the time and give up. This was enlightening and very entertaining. Thank you!!!!
This was really...interesting. I always get super excited when I find pairs! I feel like I'm winning at life!
I solved it with you. Got stuck a couple times and watched the video until you explained a concept I was missing. Thanks!
I always thought adding in the small numbers was cheating I was trying to memorise it all 😂
Well, it's an additional challenge. Kudos to you for trying. :)
@@MyReligionIs2DoGood I like it better without using the pencil marks. As you can see towards the end when you've penciled in the pairs you've 'solved' it at a way earlier stage, since the puzzle element falls away at that moment and you just look for what pair now clashes with new info. having to remember, or refind the pairs if you've lost them makes solving sudoku's more enjoyable and rewarding to me.
@@leonb4027 So, don't use the pencil marks; he is saying you have to use them. Some of us are unable to do this sort of puzzle at all. I am the numbers equivalent of a person with dyslexia. Once numbers are scattered, my brain cannot put them back in correct sequence. Seeing how to over-come that is very helpful. I am sure there is something I can do far better than you but as we are all different, I would not feel the need to belittle you for it.
That is not cheating. What would be the point of cheating anyway? If you feel you have to solve the newspaper puzzles to impress someone else, then just wait for the solution in the next days paper. Now that IS cheating.
@@PetroicaRodinogaster264 That’s weird. If you have dyscalculia why would you not use/know the name for it? And you seem a bit over sensitive, nobody is belittling you. If somebody said they felt like when they used a recipe was “cheating” when they were cooking they wouldn’t be belittling or even talking about you at all.
I have started with sudoku 40 days ago and l've looked for some tips first time today. This video came out and l'm so happy to discover it and this channel too. Thanks 😃
Watching you solve this puzzle was VERY informative and AMAZING My sister had bought a sudoku puzzle book for my mother. She and I were able to solve the level one and level two puzzles with little difficulty, however when we got into level three, it felt like the challenge got up to a TOTALLY DIFFERENT LEVEL. I looked up only, typing “how to solve hard puzzles” and read that writing down the possibilities was the key to solving hard puzzles, and never really understood what that meant. Seeing you solve this puzzle really showed me the power of writing down the possibility in each box Thank you VERY much for uploading this video
KZhead for the win ... matching out-of-the-blue recommendations and people. Thanks CtC for uploading this elegant solution. Subscribed (for the moment when I thought 'what happens if he puts in the wrong number?' and yes, it turned into a red 6)
You should work for television , talking in documentaries, the voice fits! :D Thanks for the method, I think it'll come in handy soon, even if I came here by coincidence :D
I just want to say thank you for helping me for my math hw! It was a different sudoku but the strategies help me a lot!
I have played sudoku so much in my childhood, but this was so instructional. Thank you.
Never thought to find a Sudoku Play Through/Let's Play. Subbing because I play the game in my phone, but just recently getting on to Medium. May have to challenge myself more in that level in record time before moving on to Hard.
playing on my phone aswell everytime I'm on the train. Playing on hard, which is pretty much exactly like the one in the video. While I manage to solve those in 5-15 minutes I never manage to solve the expert ones :( atleast not consistently. I have to add I came up with the method used in the video by myself playing from beginner up to hard and I want to keep finding my own solutions for expert aswell. Finding new methods to solve the sudokus easier is what makes it so fun to me. Don't wanna google and see how it's done.
Now, I'm more of a "solve sudokus on the toilet" person, but wow, that's the kind of puzzle I'd plug at for days before solving it, and you solved it in minutes! Though I do take comfort in the fact, that at least I seem to know all the techniques; I'm just way too slow :D
Yup. My aperient of choice...
Well, I'm greatly reassured. I never thought to look at KZhead videos to do Sudoku (I mean not something you'd guess would be there), but go this lot on my feed and had a look. I have worked out exactly the same pattern of doing it. The things I am learning here are now the stasis-breakers, like the X-Wing and Y-Wings, and that's what I needed to go forward. Thanks guys...
It was fun seeing the thought process of another sudoku solver, but also really frustrating seing stuff before you found them just waiting to see when you'll notice
7:43 I was stuck until that moment where you added the four, probably because I had covered the sudoku with potential marks that leaded nowhere like the potential nines in the bottom line (left corner) with the eights and fives, then the hidden pairs gave me the ultimate key to solve it. Very nice puzzle!
I tend to obsess too much with rows and columns so I found the four pretty fast, but struggled elsewhere on a few numbers. Indeed a nice puzzle.
I never played Sudoku nor do I know the exact rules but you've got number 4 in the middle of the second column and in the fourth . It just doesn't seem right.
This was a fascinating video to watch (I did twice). I tried the puzzle before viewing and got stuck. Re-doing it now that I've seen the gentleman expound on finding and making use of "pairs' should make it a little easier -- spotting these patterns is the kicker. Rather than trial numbers in cells, my method with a pencil is to place tick marks in cells according to the number; across top of cell for '1' - '2' - '3' then across center of cell for '4' - '5' - '6' and bottom '7' - '8' - '9' I don't have a program like the one used in the video. Thanks so much for the recording.
Hi. That is the same method I use. I take a daily newspaper just for the puzzles. One paper does two puzzles. Hard and easy. For some reason I usually solve the hard one but not the easy one. Does anyone have an idea why this might be?
@@johnbrewer9833 easy ones can be solved very fast without pencil marks, which is boring and doesn't give me any satisfaction
Im very new to sudoku but I love it, learning very quickly and it's very rewarding to spend 30 minutes up to an hour on a hard puzzle to finish it. The pairs technique will help a lot because I find that eventually I'll be stuck on the harder level puzzles but have a lot of pairs that now i know I could've easily figured a lot of placements out had I have known. Thanks for the video with the explanations as to why things must go where they do and your whole thought process.
I like the fact that you explain your reasoning, the other chap doesn’t always take his time and explain which leaves me trying to catch up all the time, much appreciated thank you 😊
Thanks for the video. The question is, how could you be sure there was a 6 (10:31) there?
There was only 4 numbers that could have gone there on the vertical line, 4, 6, 7, and 9...if you look horizontal 4, 7, and 9 are there leaving only 6 available
@@wanderer13 but how does the horizontal line effect the vertical line here? Sorry im just not understanding
Never quite understood Sudoku, watching this video made it much simpler yo start to understand, Keep broadcasting!!
Never forget the power of the pairs!!! Im trying to get better at soduko puzzles ive been doing them ever since i was 8 years old. Ive never thought about this way so thank you!
this took me 50 minutes! to see someone doing it much faster is amazing and good exp to improve
Like a lot of other people this video was in my recommendations even though I don't play sodoku or watch videos of it. Good job solving it though 👍
I don't understand why you say only pairs of numbers can be candidates for open cells.
Scyphus 83 т
Hi, what app you use for solving sudoku?
Didn't follow the same path but same reasoning & got it solved pretty quickly. Didn't learn new techniques as I hoped though, because some are harder to solve. Thank you.
This was the best explanation of "Hidden Pairs" thank you.
Welcome to another episode of "Why is this in my recommendation?" . . . I know this isn't original but.. Good video :)
Jessica Gabriela should make a list
You can also use addition, each box should be equal to 45 and each line horizontally or vertically is the same then it just leaves you a process of elimination where you should put the numbers without overlapping the same number.
That what i was missing. I'm a self taught sudoku amateur, so this is super interesting. Thanks for the great tip.
I’ve played sudoku for a little while had no clue about pairs thanks for that it’ll make my life easier
I predict he owns at least 1 cat
He doesn't own them. He feeds strays. He prefers them to live a free existence but with a choice, if they were to so choose.
And what’s your point?
Who needs a point? You made me laugh , hard. So completely unexpected was this observation.. thank you very much. lolololol
Weird recommendation but .. your voice made me watch through the whole video 😂😂
I very recently found this method of solving a hard Sudoku. It works well and I could solve the problem very quickly. Thanks.
I always learn something when you do one of these - thank you very much!
nice one. which software do you use? it seems to automatically remove the ones as you update the grid.
I too am curious what software this is.
Not sure specifically this one, but Hodoku is the best one I've seen so far. Not sure if it's available for Mac though
@@user-ox3ov2qt5o And there is nothing wrong with that...
@@fahimp3 false
@@B3Band I hope you are trolling (the year is 2019), if you are not why do you think homosexuality is wrong?
Sudoku is my favourite puzzle.
Thank you. This helped me out soooo much after a year of trying to solve.
First time I’ve watched a sudoku video. I was surprised that I had figured out the same way to solve puzzles as the person doing the video! We must think alike!
You could've set the 5 in the bottom right 3x3 immediately. That horizontal row needed a 5 and that was the only possible position.
calm down Donny. this is why nobody likes you.
@Cracking The Cryptic - What software are you using?
He is using hudoku, just google it it should be first link.
@@mihaihrincescu47 Did that. Was not the first link. "Hudoku is basically the same as Sudoku only with horse pictures instead of numbers." sites.google.com/site/horseisle2/mini-games/hudoku Hodoku, the second, link is similar to the app in the video. I installed it and it does not all user entry of pencil marks.
Ive been struggling with my sudoku book for ages this will certainly help 😱
I was watching mountain biking videos and ended up here somehow. This was awesome, thanks for the video. I'm gonna have to go try one of these puzzles myself, I think I got the rules just by watching you play
What sudoku program is being used in this video?
Its called Hodoku.
Looks like I'll have to order that Origin pc, so I can play this.
An absolutely terrific video! Thank you so much for sharing!
Thought this was the normal way of doing it :P Solved beforehand, still watched the entire video ^^ Good job
Cant stand watching him not finding the 5 in the right bottom square :D
Lol me too!
Or the 4 in 4th column! But, it happens! Too much on the table at times.
Can you fix my kitchen window? It doesn't close properly and there's a terrible draft.
Thank you for your intelligence. I enjoyed learning from this.
Brilliant! Thank you for showing us how you think this through. and.... I could listen to your accent all night long. Thank you for posting.
What program do you use to put the small numbers in the corners
that is usually on all pc/mobile versions it just a pencil in possible choices to help you narrow down the right answer.
It just seems the numbers in corners ,just pop up very neatly
I'm interested in what program you are using to fill in the sudoku puzzle !
SparklyDoodler Yes, I’d like to know too
I used to use excel
Google sudoku, there are tonnes of sites
@@kiran8656 well no kidding, but there are alot of little additional features in his that I like and are not in the other ones
@@SparklyDoodler like which feature
I've played Sudoku for years, never did the "Dewey Decimal" idea...☺️. THANKS!!
I've been following this channel for a while but didn't get back to this one until now. I copied it and I'm very proud that I managed to solve this almost as quickly, by using slightly different techniques but also relying a lot on CTC tips.
I’ve never completed a sudoku in my life... how did I get here? 😂
After watching this, I think I'm making too many potential pencil marks instead of just focusing on making those hidden pairs.
That's an amazing video. Loved the way he solved it.
Thank you so much for sharing your techniques!