Sudoku 101: Hidden Triples

Рет қаралды 165,171

4 жыл бұрын

You can try today's puzzle here:
cracking-the-cryptic.web.app/...
▶TRY OUR CLASSIC SUDOKU APP◀
Steam: store.steampowered.com/app/11...
▶TRY OUR SANDWICH SUDOKU APP◀
AppStore: apps.apple.com/us/app/sandwic...
Steam: store.steampowered.com/app/11...
Android: play.google.com/store/apps/de...
▶SUPPORT US + ACCESS EXCLUSIVE "CRACKING THE CRYPTIC" PUZZLES/VIDEOS◀
Patreon: / crackingthecryptic
▶SEND US PUZZLES TO SOLVE/CONTACT US◀
crackingthecryptic@gmail.com
▶FOLLOW US◀
Twitter: #crypticcracking
@crypticcracking
▶SOFTWARE◀
We sometimes use Duncan's Sudoku Solver, which is available at www.littlegogs.com/index.shtml
Or our own software, which you can access by clicking on the links under the video.
▶ABOUT US◀
Hi! We're Simon Anthony and Mark Goodliffe, two of the UK's most enthusiastic puzzle solvers. We have both represented the UK at the World Sudoku Championships and the World Puzzle Championships. We're also "cryptic crossword" aficionados. Mark is the eleven-time winner of The Times championship and Simon is the former record holder for most consecutive correct solutions to The Listener crossword. We hope we can help your puzzle solving while also introducing you to some of the world's best puzzles.
Thank you for watching!
Simon and Mark

Пікірлер: 168

@SingleHeadedHydra 3 жыл бұрын

This is such a game changer, I'm so used to the classic methods you try. But as soon as the sudoku's become a bit harder you'll have to use these techniques which I didn't know before! I'd love to find more of these informational video's on more advanced techniques!

@demus8757 3 жыл бұрын

I did it, I did it, I really did it. Took me 2 hours, but I did it.

@kimberlypreston6204 3 жыл бұрын

i'm about an hour in and came to the comments for help. About to watch the video. I'm stuck. lol.

@lacavallaviola5707 2 ай бұрын

Your comment encouraged me to keep going when I felt stuck at around 1 hour in and managed to solve it in 1,5 hours!

@stevenlomon 4 жыл бұрын

I may be the only one who thinks like this but I like to think of it more like the 3,5 and 7 "slicing" the flank in box 7, forcing a 3,5,7 triplet in the triangle-shaped sets of 3 cells to the right of the flank. This in turn forces a 4,8,9 triplet in said flank which in turn forces a 1,2,6 triplet up in box 1 and 4. Same trick, just a different explanation and way of visualizing it :)

@trelligan42 4 жыл бұрын

I really appreciate the fact you let us play with the puzzle before you teach. Not that I could finish it or anything, but engaging and becoming familiar with it lets me follow your train of thought much better.

@delighti 4 жыл бұрын

I like this video and how you took extra times to explain the triple. Very helpful!

@Socrates... 4 жыл бұрын

I made too many errors, was trying to race ahead and use your tutorial as a foundation. Please do more of these remedial videos

@stefanholbek2449 2 жыл бұрын

Funny enuff ... I spotted the 3-5-7 to the left, but went "the other way around": I pencil-marked 3-5-7 in the bottom left box in the only three open positions and thereby got the 4-8-9 triple in column one, which gave a 9 and a 48 pair. Then I of course got the 1-2-6 triple to fill out the column, and I was "off at a smart trot"! (I think that is truly British!) 😊 Just over 25 minutes ... with a little whisky, a pouring cat and Mozart in the background ... I don't go for speed and lean heavily towards logic (like you) compared to fill out all possible candidates or guesswork, brute force or what have you. I have learned soooo much lately: DANX a million for these instructive and inspiring tutorials! I haven't dabbled with anything BUT classical sudoku, so: KEEP'M COMIN'! 😎👍👍

@adam__smith 3 жыл бұрын

13:28 "And now we are starting to cook with gas". I didn't realise that people still said this. Nice one!

@akinsolarin5752 4 жыл бұрын

Excellent tutorial! Many thanks.

@dave-in-nj9393 4 жыл бұрын

It it fun to have you show the new trick, then pause and go solve the puzzle. I was really stuck before you showed the 1/6 triple on the left.

@dhirasarika 2 жыл бұрын

Thank you so much! I was stuck in a bad habit of having more numbers than I knew what to do with in my cells. Even with my glasses it was a nightmare. Your method has opened my eyes and helped me out quite a bit. Now I just need to be a bit more detailed so I know to go back and check as you mentioned in the video. I heard about your app and just purchased it. It looks awesome.

@thoughtsofamuser 4 жыл бұрын

11:24 - My only "cheat" this time was looking at the title and trying to spot said "hidden triple". Got something out of the first column almost instantaneously and everything is good afterwards. This is one of my luckiest fluke solves I think

@MacheTheFerret 4 жыл бұрын

Got it in 21 minutes, but probably would've taken longer if I hadn't thought about the title of the video for a moment. Awesome puzzle.

@CUBErt_ 4 жыл бұрын

10:03! Very clean puzzle, the 357 in the first column unlocked it for me.

@StephShrubb 4 жыл бұрын

25:50 yay, really get a kick out of doing these on my own. Need to keep going.

@EuropaChronicles 4 жыл бұрын

Several great advanced techniques in this video! Thanks!

@simonrafaelpecho1532 3 жыл бұрын

Before I wasn't good with spotting hidden triples. Thanks to your channel. I was able to improve my scanning skills. My time is 15:11.

@grenvillephillips6998 4 жыл бұрын

Something very useful to look for, which is both easy to spot and easy to remember. Thanks!

@lunafaekaida1772 4 жыл бұрын

13:02 My first time finding one of those hidden triples in the wild! helps that the video title clued me in to looking for it but still really pleased with that time. I was actually extremely surprised when i finished and found i was under 20 minutes!

@rcabr31 3 жыл бұрын

Corner pencil marks: show which cells could have specific number Center pencil marks: show which numbers could be in specific cell

@evanqualls2172 3 жыл бұрын

Wow, this is an extremely powerful logical tool. They don't even have to be "hidden". You can apply the same logic even if you have more than 3 numbers in a 3x3. Learning this technique has seriously upped my game.

@gurrutvurstug8779 4 жыл бұрын

25:43 Finally was able to finish one again. I only used triples once i think, but did have a lot of doubles

@davidwood639 4 ай бұрын

Simon, you are a great teacher, thank you for these break-down videos.

@OMGItsVenom 4 жыл бұрын

Would it be possible to make a video explaining the different types of "triples" as I still cant get my head around it

@RonnieMorg 3 ай бұрын

I really enjoyed playing the sudoku in the link. (I started playing the sudoku before you got to the full solution) It took me 49 mins and i came back to leave this comment. Great video! And thanks for the tip about how to eliminate multiple solutions.

@hajislover 4 жыл бұрын

Did it with you in the beginning! Until i got up and running on my own. 27:37! Best time so far!

@vinnyvillano8862 4 жыл бұрын

Nice technique, seems so simple. I hope you create more videos like this one.

@charlesjohnson9434 4 жыл бұрын

Your triple was better, but I was proud of myself for noticing right away a hidden pair in column 7. The given 4 in row 5 combines with the given 2s in rows 4 and 5 to put a 2/4 pair on the ends of the column and a 3/7 pair in the middle. That gives a few digits.

@gepettowins 2 жыл бұрын

2:20 why do we know 1, 5 & 8 are forced to be in the 6 positions? i can see that there's a 1, 5 & 8 in the 7th column, but only 1 & 8 are present in column 9. is it simply because we know the 1, 5 and 8 in box 3 are not in row 8, and therefore must exist in the other positions in row 8?

@TheCyberadam26 4 жыл бұрын

Very useful tip. I will be mindful for these hidden clues for the future.

@johnlee5709 4 жыл бұрын

Excellent tutorial! This tip is a game changer.

@JuanMataCFC 4 жыл бұрын

i'm surprised that the first digit i managed to place on the grid 5 u placed all the way at 11:10! :) either way, nice fun puzzle! kinda gave up after a bit, but re-attempted it after watching your explanation "hidden triples" and was able to solve it from there!

@chrisengland5523 3 жыл бұрын

It took me quite a bit longer to solve this one, without using any advanced techniques and interestingly, the digits arrived in almost the reverse order. I've used the "open flank" technique before without knowing what it was called but didn't spot it here. So this was a good reminder, Thank you.

@dylanlenn7836 4 жыл бұрын

I've been trying to do the NYTimes hard puzzle every day lately, today's was no trouble but this one I struggled through quite a bit

@dndsmith1ify 6 ай бұрын

Hi, long time CTC fan. One question I've never asked is why so many key presses on these older videos to enter a single number. Don't get me wrong I actually really like it.

@actionic135 4 жыл бұрын

Commenting before view. 19:16. Title was a big help of course. Took me awhile to first find the 126 triple in c1 (since I solve methodically), and it unlocked the puzzle fairly quickly after that.

@KAF128 2 жыл бұрын

I am still a relative beginner/intermediate and I'm not good with triples at all, but I think I would spot that pattern - I think it's what my Sudoku coach calls a "cleaver" (an upside down one !) Thanks for the "uniqueness" point at 15:30 - that is something I had not been able to resolve before.

@timsullivan4566 4 жыл бұрын

VERY persuasive demonstration for the advantage gained by seeking hidden trips BEFORE looking for unique or paired restrictions in 3x3s. Count me as a convert!

@carolyncopeland2722 4 жыл бұрын

48 MINUTES, so happy. first time to complete a NYT hard in under an hour :)

@decalice4272 3 жыл бұрын

26:10 It might be the first time I've finished a Times puzzle without watching your solve

@jeremymcguire7069 3 жыл бұрын

That was a fun puzzle. It's cool when I watch the video back and find out that I followed almost exactly the same logic throughout the solve. Unfortunately the logic was at about 1/4 your speed.

@ragnkja 4 жыл бұрын

11:03 "It's definitely worth getting into the habit of making both types of pencil-marks." That comment was directed at Mark (as well as anyone else who might need it), wasn't it?

@chaotix37 4 жыл бұрын

Holy cow. That was an excellent tutorial. 17:43... New technique learned. Thanks and truly appreciated

@fowlerbt 4 жыл бұрын

Ditto. I've been pretty familiar with most of your standard techniques up to this point, but this is a new one for me that is already paying dividends. Very much appreciated.

@tojare1 4 жыл бұрын

Excellent tutorial!

@kathytiffin6518 2 жыл бұрын

Very helpful and well explained. Thank you.

@Laserstormelpies 4 жыл бұрын

34min18sec Heeey, the second Puzzle I solved since I started watching this channel, and more or less the first because on the one before that I "guessed" 2x... Now I'll watch the video and find out what Simon means with Hidden Triples, of course I used what I learned over the last videos, but I didn't really notice what of the things I found are called "Triples" (maybe all those Pairs?) Just happy that I did it, without the knowledge from the last 20-30 videos that I already watched on the channel, I probably wouldn't have had what are the requirements to solve it (also it can be a bit of a demotivation to keep trying the easier Sudokus on the channel and never quite solving them, so that's a motivation-boost to keep going).

@MinimumGnome 4 жыл бұрын

New technique for me. Thank you very much.

@wmchristie 4 жыл бұрын

Mark, you are an excellent teacher.

@One_In_Training 4 жыл бұрын

That's Simon in the video :)

@wmchristie 4 жыл бұрын

I feel stupid. Simon, I apologize. You are an excellent teacher. TheWtfness, thank you for the correction.

@cookiehunter3294 4 жыл бұрын

13:29 and I'm proud. Thanks for the excellent explanations :)

@boydegg 3 жыл бұрын

2nd try - did it in 25 minutes. Delighted!!

@CHICKENRED-hg3ql 2 жыл бұрын

15:45 I have a Sudoku Book where there was a sudoku puzzle that had two solutions and the two numbers were 6 and 8. Just like how you talked about the 3 and the 7 could have been in either spot, the 6 and 8 was just like that in the Sudoku book that I have and it was in either spot that it could be, so that is why I cant rule a number out just in case that happens again to where there is two solution puzzle, and it was a puzzle where if you turned the puzzle upsidedown the start pattern would be exactly the same as it would be rightside up, so not upsidedown.

@wmchristie 4 жыл бұрын

I learned something today! Today is a good day.

@RO8s Жыл бұрын

I always look for triples, and I got the right one, except that the rest of the puzzle took me an hour! He just accelerates at such a blinding speed...

@nathanblaxall8703 4 жыл бұрын

Great tips!

@glennmelven3414 4 жыл бұрын

Saw that triple in C1, but didn't realize that the 4 was now a hidden single in C2. Once Simon said that I was able to finish the puzzle with a blazing fast time of 45 minutes.

@pooka217 4 жыл бұрын

Concerning 1,5, and 8, I'm confused with the initial logic. Why can't 5 possibly be in r4,c9 and r6,c9? I can see the rest of the initial assumptions work for the other numbers. Thanks for any help.

@jurjenvanderhoek316 4 жыл бұрын

Indeed, and also r7c9

@pooka217 4 жыл бұрын

@@jurjenvanderhoek316 Yes that looks true too. So why the statement 1, 5 and 8 are locked into the middle column?

@FunkySwerve 4 жыл бұрын

5 actually IS in r4,c9. He misspoke. The actual triple is the 162 in c1.

@NirajAlok 4 жыл бұрын

Found the triple using 357 on the first column. Took just about 10 mins.

@BlueCyann 4 жыл бұрын

Oh god I'm so bad at these. Took me almost an hour and a half, with several long breaks during which I reflected on my suckitude. Never found a single hidden triple, and it was not for a lack of looking for one. People talking about various 357 triples in the first column/bottom box; what I found eventually was a 48 double in the same spot; maybe it amounted to the same thing? Edit: That 48 double was there from the very beginning! Column one rows 8 and 9. 1, 2 and 6 ruled out by the cell, 357 by the column, and 9 by the rows. Same thing as the people in the comments, same thing as Simon found, just another aspect of it. I don't know why these things are so hard for me to find. Like I said, I looked in several "open flanks", having been introduced to the concept in an earlier video. I think I just gave up too early. Figured I would come back to the idea later and wound up never looking there, at least not in quite that way. Pretty sure I'm going to continue to stink at this. Logic I'm OK at, but pattern recognition is not my thing.

@IanMcGarrett 4 жыл бұрын

I saw it the other way round: the 3-5-7 in the first column forced their placement in the lower left hand box which in turn meant that the 9 in that box had to go in the first column.

@MesaperProductions 3 жыл бұрын

Yeah, the lack of explanation of how the 1-2-6 is "forced" as a triple is severely lacking. The 3-5-7 combo however, *does* force the 1-2-6. I think he has this technique exactly backwards.

@10mins 3 жыл бұрын

Very helpful. Thank you.

@thomaswilke6312 4 жыл бұрын

Another great lesson

@garanceadrosehn9691 4 жыл бұрын

You looked at the central box for the first example of a possibly useful hidden-triple. You decided that example wasn't going to be helpful, so you switched to the second example. However, both column two and column three already had a 2 in them, so the '2' for row six is proved to be limited column 8 and 9. So that was somewhat useful. Not as useful as the second hidden triple, but it was a little bit of help.

@JohnWroughton 2 жыл бұрын

Another thing about the first triple found is that automatically there is a 489 triple on the lowest three cells of that column which in itself can easily lead to resolving the nine.

@boydegg 3 жыл бұрын

37 minutes! But I needed Simon to show me the hidden triple first.

@seanm3189 3 жыл бұрын

45 and same

@eddaumpeddaump4509 4 жыл бұрын

Great tip. It's not something I look at normally.

@texanonline1244 4 жыл бұрын

thank you for the help

@StefanPettersson 4 жыл бұрын

I used this technique for one puzzle in the Classic Sudoku app. It solved very fast for my standard and after the solve, the app asked if I spotted the two Swordfish that it was designed to train. No I did not. This technique solved it easliy anyway.

@sagarchinna4682 3 жыл бұрын

sir this is great. thank you so much.

@maxfriis 4 жыл бұрын

I spotted a 3,5,7 triple in the bottom left box for placing the 9 he is starting with :) Different triple same result.

@howardtoob Жыл бұрын

You are VERY instructive. Many thanks.

@pooka217 3 жыл бұрын

Hi, is there an Android app which allows centre marking? Is your app software available on Android? Thanks and 👍 for the great videos.

@phos4us 4 жыл бұрын

The part where you do a big chain solve in a row was fun

@adrianhead6272 3 жыл бұрын

Listened long enough to get the hint... stopped the video before you got there. Started my attempt, spotted what "I wouldn't have spotted otherwise", and completed the puzzle in under eight minutes (and only pencilled in definite pairs/triples, no corner marks at all). Just goes to show that the approach is all important. Plodding may have got me there, but it would have taken much longer... so frustrating !!!

@chilli3775 4 жыл бұрын

Is there a way to notice naked singles? I always end up needing all pencil marks to notice them, as soon as it gets a bit complicated with 2 numbers just pointing there

@brucerose4383 4 жыл бұрын

Simon - Sudoku is physically demanding .. proper hydration and electrolytes can cut down on cramping (winking emoji)..

@ValeriePallaoro 4 жыл бұрын

Magnesium tablets'll do it

@woodchuk1 4 жыл бұрын

Took me 3:58 after importing and building the candidate list. Nothing harder than a few X-wings, but still a nice puzzle!

@alastermyst 4 жыл бұрын

"Take a look at the Richard ???? puzzle if you haven't already." Interesting idea. Unfortunately you haven't provided a link as far as I can tell and that isn't enough information for me to successfully search for it.

@CrackingTheCryptic 4 жыл бұрын

Apologies, I think there is a Card at the beginning of the video. It's this puzzle:kzfaq.info/get/bejne/b6plZdmq0s_Dpmw.html

@twirdman2 4 жыл бұрын

35:29 with a break in the middle to do a couple things. Probably could have been a bit faster had I not spent time in very beginning trying to find triples.

@Mephistahpheles 3 жыл бұрын

I'm not particularly great at these, but this puzzle was pretty easy, imo. Started with the 48 pair in the bottom left & the naked single 3 in R4C7. Used 1 x-wing in the puzzle, but otherwise it was all basic pairs & singles. Didn't use ANY triple.

@alicelaybourne1620 3 жыл бұрын

@@Mephistahpheles Yeah, not needed, but I think he used this because when it was sent in, he saw a triple on the left side that easily illustrated the technique. He did say it was an instructional video to help intermediate solvers.

@Mephistahpheles 3 жыл бұрын

@@alicelaybourne1620 Yup. I certainly appreciate it. As noted, "I'm not particularly great." Every bit I can learn is good. This is pretty much my only source of sudoku education, and I know I'm improving, thanks to Simon, Mark and audience commentary.

@Toby_AM 2 ай бұрын

Your explanation illuminated a 2 in the very beginning that ended up being one of the last squares you solved. Strange.

@mikenolan2675 4 жыл бұрын

Learning new technique is very helpful

@macmitch1234 4 жыл бұрын

18:51 for me today, pretty proud of that time

@paollodeoreyes 4 жыл бұрын

36:15 for me, I might have not solved it without knowing in advance what to look for (hidden triples).

@DukeAi 4 жыл бұрын

Another easy one for a confidence boost. Mucho Burundi

@megaminxpll 4 жыл бұрын

Ah, yes really easy one, just one pair & rest was singles.

@rudybecker9680 10 ай бұрын

I am not sure about this method, where is the right place any chance you can add more videos explain where is the suitable locations I am training to use I am making many mistakes, Thank you Rudy

@WildAnimalChannel 4 жыл бұрын

41 minutes 56 seconds. Not bad for me. THanks for the tips.

@drengskap 2 жыл бұрын

33:19 on the second attempt - I got some 2s and 4s scrambled the first time around!

@tomtheultimatepro 4 жыл бұрын

15:20, messed up my pencil marks at the end and was searching for the next clue for a few mins

@weightlosshelp7827 4 жыл бұрын

Can I know why don’t you go number by number when starting your search? For example start with number 1, mark or fill up all possible boxes, then move on to the next number and so on?

@shinyy5184 4 жыл бұрын

28:46, making progress!

@KAF128 2 жыл бұрын

Where can I find the Richard Stolk puzzle, pls?

@peterkastorf7652 4 жыл бұрын

In this SUDOKU we have an 8 and a 7 next to each other in row 5 and a 9 and an 8 in row 2. More numbers next to each other make more than 15. How does this go as in another vlog you said, that no numbers should exceed 15?

@MegPomitakaDoc 4 жыл бұрын

loved it

@PatchworkPS 4 жыл бұрын

How can one tell that at 17:26, the matching 16 pairs in the top left and middle boxes don't form a deadly pattern?

@chompyzilla 4 жыл бұрын

The other solution would change which columns the 1 and 6s end up in.

@reddcube 4 жыл бұрын

I do like Uniqueness patterns. I’ve been solving some challenging Masyu puzzles that rely on uniqueness to solve them.

@rblossey 4 жыл бұрын

kakuro too, I use uniqueness there a lot!

@alastermyst 4 жыл бұрын

I would love to get into the habit of making both types of pencil marks but unfortunately I haven't found a normal sudoku app that allows it.

@sallyklemcke1368 3 жыл бұрын

Soduko 101 Hidden Triples. What do you do if there is not a 4 or 8 at all on the game before you start? So what does that do to column one?

@britchie7224 2 жыл бұрын

Can someone give me some help? I've purchased the cracking the cryptic, I've downloaded the Stream, have an account and have no idea now how to access it. Also does this allow me to play on my Android AND my computer?

@wbtittle 3 жыл бұрын

Thank you.

@kathleenliegeois9925 Жыл бұрын

Good evening, Can we succeed a Sudoku of all levels without detecting hidden triplets ?, I have trouble recognizing some of them, at least for the hidden ones.