The "Phog Of War" Sudoku

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** TODAY'S PUZZLE **
We haven't solved an apiyo sudoku on the channel for too long and we get to put that right today with Phog Of War - a much recommended Fog Of War puzzle!
As one might expect, this is really very original and clever - see if you can work out how to start without cheating!
Play the puzzle at the link below:
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Rules:
Normal sudoku rules apply. The grid is partially covered in fog. Placing correct digits will clear the fog from that digit’s surrounding cells. No domino in the grid sums to 3. The perimeter cells of the grid sum to 172. Digits along a thermometer must increase from the bulb end. Adjacent digits along a green line must differ by at least 5. Cells separated by a black dot must contain digits in a 1:2 ratio (ie one digit is double the other). Cells separated by a white dot must contain consecutive digits.
** NEW SUDOKU HUNT JUST OUT **
A sudoku hunt, Kraken The Cryptic was released on 1 July at 4pm UK time on Patreon. We're already hearing it's a lot of fun (and not too difficult) so do give it a try if you can.
Join us on Patreon for as little as $2 a month to play.
/ crackingthecryptic
** NEW GAS PACK: VOLUME 2 IS OUT **
The new GAS (Genuinely Approachable Sudoku) pack is out on all platforms here:
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▶ Contents Of This Video ◀
0:00 Theme music and puzzle intro
2:33 Sabrina and Desmond's wedding!
3:50 Happy Birthdays etc
7:07 Join us on Patreon
8:00 Rules
10:30 Start Of Solve - Let's Get Cracking!
▶ Contact Us ◀
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email: crackingthecryptic@gmail.com
Our PO Box address:
Simon Anthony & Mark Goodliffe
Box 102
56 Gloucester Road
London
SW7 4UB
(Please note to use our real names rather than 'Cracking The Cryptic'.)
▶ SUDOKU PAD - Use Our Software For Your Puzzles ◀
You can input classic sudoku puzzles into our software and help support Sven, the programmer responsible for the wonderful user interface we all use to play these puzzles everyday. The app also comes with 12 handmade puzzles from us:
iOS:
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Steam: store.steampowered.com/app/17...
Android:
play.google.com/store/apps/de...
ALSO on Amazon: Search for “SudokuPad”
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Опубликовано:

29 июн 2024

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Комментарии : 309

@Hybridrofl 11 месяцев назад

I will never not listen to Simon explain the secret. Always happy to be one of his favourite people.

@matt5075 11 месяцев назад

He is so good at explaining things. In another life he could be a teacher.

@longwaytotipperary 11 месяцев назад

Same!!!😉

@77kaczka77 11 месяцев назад

In your favorite song, you like the repetitive chorus the most

@longwaytotipperary 11 месяцев назад

@@77kaczka77 👍🏻

@akhos9876 11 месяцев назад

It really makes me smile every time, and especially when i need it

@lomax343 11 месяцев назад

That feeling you get when you crack the break-in and realise that there are going to be two 3's in two corners...

@apiyo_puzzles 11 месяцев назад

Thanks for the feature Simon! This is actually a remake of my first ever published sudoku. Thought I'd revisit it with a few new tricks I've picked up along the way, and some fog. :)

@crystalgehrt8861 11 месяцев назад

Kudos to you. It's beautiful!

@pouletbelette 11 месяцев назад

Very nice logic there, well done!

@57thorns 11 месяцев назад

A very nice puzzle that took me about 40 minutes.

@kevinwilcox6943 10 месяцев назад

Can you confirm that the name of the puzzle is a reference to Phistemophel, like Simon surmised? :)

@apiyo_puzzles 10 месяцев назад

@@kevinwilcox6943 yep that's right Kevin

@warren_r 11 месяцев назад

Having been around the channel for going on three years now, I tend to skip over the re-explanations of rules to save myself time. But I am a strong believer in the idea that every video should explain what's being done without assuming that the viewer has seen another video.

@bellairenative19 11 месяцев назад

Getting half way through the puzzle and getting stuck, then having to watch Simon miss things you thought were obvious only to make the simplest 9 has to go next to the 4 deduction on a German whisper that you missed is quite humbling 😂

@nickroethel3326 11 месяцев назад

Me: SIMON COME ON! THATS A 9! ITS RIGHT IN FRONT OF YOU! Simon: (continues consecutively solving the 19 elaborate deductions I was NEVER gonna be able to solve)

@AWanderingSwordsman 11 месяцев назад

@@nickroethel3326 I missed the 4-9 german whisper part TWICE. Once in the central box and again in the top left box. Both times cost me like 5+ minutes. A real fool me twice moment.

@cameronrossington8715 11 месяцев назад

Please be sure to explain the secret each time, as it reassures me that I'm one of the favored ones. But I think we can take a Phistomophel ring as given once in a while, especially if it's come up earlier in the week

@LachlanCannon 11 месяцев назад

Given its a reasonably complex explanation, I wonder if they wouldn't be better doing a video that explains the Phistomephel ring that they can link to when it comes up instead of needing to explain it every time.

@xOscarAx 11 месяцев назад

@@LachlanCannon this is actually a great idea. i understand why they explain it, the first time i heard him explain it i was genuinely blown away. but now its becoming a bit redundant. Making a video specifically to explain phistomephel would be very beneficial to both new and old viewers.

@fulltimeslackerii8229 11 месяцев назад

they treat every video as everyone’s first ever video so they’ll always explain it. the same way they explain renbans, german whispers, thermos, etc

@laurakreinbihl7708 11 месяцев назад

@@LachlanCannon❤😊❤😊

@dpatto 11 месяцев назад

@@fulltimeslackerii8229 I like it this way, you don't often understand something the first time it's explained. I've got no issues skipping past it.

@maxgreve7856 11 месяцев назад

But EITHER WAY, thank you so much to Simon, Mark and the setters. I swear, this has become my main source of visual entertainment, and is far, far better for my brain than the TV I used to watch! I discovered this channel three years ago during lockdown and I've been basically addicted by day one. What a Community!!!!

@spooony2714 11 месяцев назад

This was probably my favourite use of the Phistomefel ring and set theory in general I've seen yet. Initially when I read the rules I figured that the perimeter sum would be a disambiguator at the end, but it turns out that it was the break in. Wonderful.

@SamuraiPipotchi 11 месяцев назад

Phistomefel's ring always takes so long to explain, so I'm happy to skip over it BUT Make sure you link yesterday's video in a pinned comment or in the description, otherwise future viewers may have difficulty identifying which video you mean and that would be unfair on beginners.

@joekerr3638 11 месяцев назад

Didn't Simon do a YT short video of phistomofel?

@MunichFreak 11 месяцев назад

Or maybe create a playlist of specific sudoku logics. I think those would be really appreciated

@SamuraiPipotchi 11 месяцев назад

@@MunichFreak That's probably an even better idea honestly, because then you can just link that playlist in the description preset and it'll be linked on all videos by default.

@deniseiln 11 месяцев назад

Seconding the request to link to the referenced video: it's fine if people are watching that day, or even a few days later, but for those who stumble across the video a month or a year later will have a hard time finding that video

@kimspence-jones4765 11 месяцев назад

The alternative is to bookmark a chapter end at the end of the explanation, as they did yesterday. This allows us to skip ahead if we don’t need the explanation. That would make a more pleasant experience for newcomers.

@harkelin 11 месяцев назад

I would think a video playlist with the proofs for the theorems you use would be a good thing. Then just link them when you use them.

@victorfinberg8595 11 месяцев назад

proofs are best left as an exercise for the reader - not a Klingon proverb

@Anne_Mahoney 11 месяцев назад

One of the most amusing parts of this video was how long it took Simon to notice that "Phog," coupled with the fairly obvious pattern of un-covered digits, was a pointer to "PHistomefel." Even after he decided to use the ring, he didn't comment on the name of the puzzle for some minutes. Second most amusing part was watching the co-ordinated confetti cannons! Fog puzzles are great: let's have more!

@Ardalambdion 11 месяцев назад

When the sudoku grid looks like my view out of the window, we are in for a treat.

@MaeInBelgium 11 месяцев назад

Please link to the video in the description, even if it's just yesterday's video, so that we can easily go to the proof for the Phistomophel ring if we'd like to. Once this current video is no longer today's video, it becomes more and more difficult to find yesterday's video.

@JeroenBursens 11 месяцев назад

Simon, you reading out birthday and best wishes is pure joy, it warms my heart.

@longwaytotipperary 11 месяцев назад

Ditto!!

@prunabluepepper 11 месяцев назад

At this point you should simply challenge Maverick to a sudoku contest. If you win, he needs to tell you his flight times in advance.

@SleepyHarryZzz 9 месяцев назад

Perhaps Maverick will produce a Sudoku hunt for Simon to solve where he has to arrange all of the grids in some special way that reveals his schedule for the coming week.

@nickroethel3326 11 месяцев назад

If i recall you guys were making shorts for things like the phistomophel ring specifically for this reason. However, I think that because you explained it only yesterday it's fine. It's a lengthy proof. If it had been a few weeks, then yes. Explain it. I love that you guys do everything you can to make these puzzles accessible to new people. Even though I've heard these proofs a hundred times. I will never complain because the REASON is more important than my only personal preference. This channel is INCREDINLY welcoming, and wholesome, and inclusive, and friendly, and I am against ANYTHING that will change that. This specific case I think it's fine because it's so rare to do two rings in a row, and it's very easy to just go to yesterday's video and watch that proof.

@emilywilliams3237 11 месяцев назад

I really liked this puzzle and video. And Simon, when you are delighted by something, it is contagious. Thanks for being so enthusiastic! On the topic of explaining Phistomefel each time: in skimming through some of the comments below, I think that there is a mixed opinion about it. My own thought is that you should explain it every time, because you never know when someone new to variant sudoku might be watching this video and no other, and find it hard (thanks to RU-vid) to find "yesterday's puzzle". Using the chapter marking will help those who don't want to see it twice in one week simply skip over it. When I was new to this channel, one of the things that drew me in (which I am sure I was not even fully aware in those early days) was that you and Mark explained everything so fully. I could always understand why you were doing what you did. Even now, you explain things like "a nine can never go anywhere other than on the tip of a thermo because let's try putting it here in the middle ..." and people don't seem to mind that - but to someone new to thermo sudoku, that is revelatory. Therefore, I think that to keep with the culture of this channel of being a great place to be a newbie, the Phistomefel ring should be explained every time. Yes, it takes longer than explaining why a 5 can't go on a German whisper, but to a newcomer it is just as important. (And much harder to see without a proof.) Thanks for everything you and Mark have taught and demonstrated over and over so that even this old dog has learned quite a number of new tricks, and had a ball doing so!

@davidrattner9 11 месяцев назад

This is phenomenal written from you!!

@emilywilliams3237 11 месяцев назад

@@davidrattner9 David, you are very encouraging!

@jenisjourneys9215 11 месяцев назад

Simon at the number of people who had done the puzzle:s: "203 people in 3.4 days. That is a tribute to how loved these puzzles are, and to apiyo." Yes, it is... Me, after solving the puzzle: 3337 people after 3.9 days! THAT is a tribute to CTC and how many people solve the puzzles they promote.

@RasperHelpdesk 11 месяцев назад

When doing a ring puzzle like this I find it useful to remove matching digits' highlighting. For example at 41:00 you have a 3 and 89 in bottom right and a 3 and 89 on left side of ring, remove the blue and orange highlight from both. Likewise with the four 1s, the other 89 pair, and the other 3. Makes it very clear what still needs to be matched up

@ElysaraCh 11 месяцев назад

this idea is very clever and i like it

@philipstorey6399 11 месяцев назад

I was going to say the same thing, but since you already did I’ll just add to yours. I think it would have sped things up a little in this puzzle.

@listey 11 месяцев назад

Extending the logic, would it make sense to do this in all Sudokus? Given this trick is not unique to this puzzle.

@stephenbeck7222 11 месяцев назад

@@listeyyes but it is not very helpful on all sudokus.

@RasperHelpdesk 11 месяцев назад

@@listey also useful on irregular sudoku when dealing with "law of leftovers" type situations

@daleomiller 11 месяцев назад

A possible suggestion: Make a video proving Phistomefel's theorem, and reference it rather than proving it each time.

@codragdus 11 месяцев назад

This is the way.

@bellairenative19 11 месяцев назад

I can get behind this, but the secret has to be explained every time without question lol

@daleomiller 11 месяцев назад

@@bellairenative19 Absolutely!

@BozoTheBear 11 месяцев назад

He did make one a while back - no idea why he doesn't just reference it each time.

@JensGulin 11 месяцев назад

I always enjoy the detailed explanations and considered it part of Simon's train of thought. That includes explaining why he uses small digits in fog, instead of just doing so. But he didn't mention Maverick (first time) today and I felt the ring explanation was also clarified enough, so apparently there's room for skipping sometimes. From a RU-vid algorithm perspective, I'm not sure if viewers jumping to a separate explanation video is beneficial compared to some skipping a few minutes of repeated content. Long videos that everyone watch is probably best. :⁠-⁠)

@inspiringsand123 11 месяцев назад

Rules: 08:01 Let's Get Cracking: 10:33 Simon's time: 36m51s Puzzle Solved: 47:24 What about this video's Top Tier Simarkisms?! The Secret: 6x (12:01, 12:04, 12:12, 12:26, 25:03, 25:04) Phistomefel: 4x (10:43, 10:59, 17:33, 17:37) Three In the Corner: 2x (27:41, 27:59) Maverick: 1x (00:19) And how about this video's Simarkisms?! Naughty: 13x (21:22, 21:24, 26:07, 27:20, 29:12, 33:01, 33:37, 33:39, 36:36, 37:34, 39:29, 42:43, 48:03) Brilliant: 8x (03:42, 03:42, 10:28, 22:57, 23:00, 23:03, 32:13, 47:21) Ah: 7x (16:21, 16:39, 16:39, 24:43, 27:00, 30:52, 32:08, 41:12) By Sudoku: 6x (31:59, 33:17, 35:58, 38:06, 45:00, 46:27) Sorry: 4x (00:15, 06:05, 06:31, 42:08) Hang On: 4x (11:34, 27:37, 27:43, 27:47) Obviously: 4x (15:57, 24:01, 25:25, 29:31) Goodness: 2x (34:11, 35:45) Clever: 2x (16:39, 38:20) Beautiful: 2x (31:31, 47:49) In Fact: 2x (17:59, 26:07) Apologies: 1x (00:23) Naked Single: 1x (45:19) The Answer is: 1x (27:24) In the Spotlight: 1x (28:02) I Have no Clue: 1x (15:31) Stuck: 1x (27:04) Lovely: 1x (47:50) Break the Puzzle: 1x (32:45) Incredible: 1x (01:27) Our old Friend Sudoku: 1x (43:02) Shouting: 1x (06:12) Think Harder: 1x (37:11) Proof: 1x (18:30) Intriguing: 1x (38:22) Plonk: 1x (41:29) What Does This Mean?: 1x (37:02) That's Huge: 1x (41:12) Nature: 1x (09:38) Pencil Mark/mark: 1x (44:25) Cake!: 1x (04:24) Most popular number(>9), digit and colour this video: Forty Five (8 mentions) One (110 mentions) Green (16 mentions) Antithesis Battles: Low (7) - High (5) Even (2) - Odd (0) Higher (6) - Lower (5) White (8) - Black (7) Column (14) - Row (6) FAQ: Q1: You missed something! A1: That could very well be the case! Human speech can be hard to understand for computers like me! Point out the ones that I missed and maybe I'll learn! Q2: Can you do this for another channel? A2: I've been thinking about that and wrote some code to make that possible. Let me know which channel you think would be a good fit!

@Craznar 11 месяцев назад

You should create a library of short videos with these kind of proofs, then link to then on screen during the video.

@T123456788 11 месяцев назад

Whenever you explain something I already know I just put you on 2x until you're done so honestly even doing it every puzzle isn't that big a deal

@zachgordon9273 11 месяцев назад

I actually love this dude so much. Just gives of good vibes

@orosma868 11 месяцев назад

Thank you for the mention and kind words, it made my day. Plus it was my birthday the other day so an extra bonus gift for me. I know you are so often told how much joy you bring to people but, given my diagnosis, I make sure I spend as much time as possible doing things I enjoy and that, without fail, includes my regular doses of CTC. I especially love a fog of war puzzle too. Thank you so much. 🥰

@sampathkumar-ej7xl 11 месяцев назад

Apiyo your puzzle gave me so much joy in solving. Thank you. Thankfully it was approachable given the couple of years of watching the channel.

@chocolateboy300 Месяц назад

I finished in 56 minutes. I think this is the first time that I actually used Phistomefel's Ring to solve a puzzle. I usually see that the ring is possible, but I get around it through other methods, cause I don't quite understand SET Theory. Using the perimeter clues with Phistomefel's Ring was such a light bulb moment in my head. After putting in that first 1 in the ring was an amazing feeling. It was only surpassed moments later when I put two 3s in the corner simultaneously, getting two confettis at the same time. Fog of war puzzles are so cool. I really liked this one. Great Puzzle!

@CurtisSmale 11 месяцев назад

Woot! I beat Simon without help again! Another celebratory day. I'm not yet at the point where that is a routine. I like using Simon as a benchmark =)

@dab1810 11 месяцев назад

Proud to finally have solved one of the puzzles (mostly) on my own! After Simon showed the break-in, I managed a time of 1 hour, 38 minutes, and 37 seconds, which was actually much faster than I expected to get.

@spencerss4908 11 месяцев назад

I think my favorite part of this puzzle is that it is the same difficulty with no fog as with fog... But with fog it is more fun and keeps your focus making it possibly easier;

@clarityc481 11 месяцев назад

Oh, what a beautiful, graceful puzzle. 41:59 for me, which I'm immensely proud of: I got very nearly stuck a handful of times, but always just managed to see my way through. Thanks for showcasing this one, I really enjoyed it.

@eytanz 11 месяцев назад

Last night, after driving my family all day back from our holiday, I had a look at the puzzle, couldn't figure out a way back in, and thought it was too complicated for me and decided to watch the video without solving it first. Then I fell asleep. In my lunch break today I had another look at the puzzle and really glad I did because with my brain less tired I saw the first step of the breakthrough and had a lot of fun solving it. What a great puzzle! Now about to watch Simon solve it :)

@dannstarrjp 11 месяцев назад

Back to back amazing puzzles from Simon, this one much easier than yesterday’s but still so much fun and again wonderful use of phistomephel ring

@unbatteristaacaso 11 месяцев назад

I think you should do all the longer demonstrations as standalone videos, and put the appropriate link in the description when needed.

@steave435 11 месяцев назад

You definitively did a lot better than me (I kept forgetting about the naughty domino rule), but you did underutilize the ring. As soon as you concluded that you had 2 89 pairs in the corners, you can look at the ring and see that there is only 2 possible places for each 9 (at the end of the thermos), and since those are on white dots, the other thermo end has to be 8s, so the 89 pairs go in to the ring. Now you know that there can not be any more 8s or 9s on the ring due to the thermos (can't put another 8 on the other thermos due to sudoku), so the maximum value that can go into the corners is now 7. That means that the high digits on the box 3 and 7 whispers have to be a pair of 67 pairs. That drops the new max to 6 because 7s can only go on the ring in column 3 and 7, so can't have more than 2. Now you can place the 2s in box 3 and 7 in column 7 and 3 respectively as you did, but the same goes for the 3s - they have to exist in those columns, they can't go in box 4 or 6 due to thermos or box 1 and 9 due to 3s in the corners. That in turn makes r2c8 and r8c2 naked single 5s - can't be 1, 2, 7, 8 or 9 due to those digits being unable to go on the ring, and can't be 1, 2, 3, 6 or 7 because they're already placed or pencil marked into the boxes. 4 is excluded by the 4 in r2c2, so that just leaves 5. The only question that remains is if r8c8 is a 4 or a 6. Personally, I would very much prefer explanations for the basic things like the secret, whisper polarity and the ring to be left out and just put in a timestamped and linked video. Would avoid a lot of repetitions for those of us that have heard it a ton of times already, and it allows you to really think it trough and come up with the best explanation for them that you can and include that in the video, even if it takes a bit longer, so it might be better for newcomers too.

@saminari_1023 11 месяцев назад

That was a fantastic break-in, I'm in awe. One of the coolest ways I've seen so far to employ the phistomefel ring.

@algea_algea 11 месяцев назад

Great video Simon! You get a certified Pass today on proving Phistemophel!

@Cruzz999 11 месяцев назад

I would strongly suggest that you make a compilation, a playlist for example, of videos where you rigorously prove things like the phistomefel ring, y wings, sword fishes, etc etc, and then refer to those videos with the little "i" cards that you can place in videos when you need to explain something. The explanations could probably just be cut out of previous videos, and reuploaded as short clips for this purpose.

@ryxiewuff 11 месяцев назад

This break-in stumped me, tinkered with eliminating digits from the thermos for about 45 minutes before giving up and watching. Not at all what I was expecting. @~@

@Vivo-cp2rb 11 месяцев назад

A CTC video by Simon isn't a classic without maverick passing by

@stjernis 11 месяцев назад

It's quintessentially Simon to do all sorts of clever deductions while studiously overlooking the 1 in box nine that was obviously resolved from the start. :) (Otoh it revealed some clues that I wasted a lot of time trying to make use of too early.)

@martysears 11 месяцев назад

One of the best and most playful uses of the Phistomofel ring I have seen... great stuff

@victorportelli-xl6ww 11 месяцев назад

4:07 Simon (aka "Goose") I beseech you to ask Mark to slow down "Less haste, more speed!" I have a secret I only tell my closest friends - that secret is a bug screen is a sound investment especially in summer. Could I also seek an improvement from Sven-gali - in the form of a working pad that can superimpose over the rules as needs (may prove useful? I love your solves especially as they are always kind of awesome! Jim from Alice Springs Australia

@martincollins11 11 месяцев назад

What a fantastic puzzle. The break in was so enjoyable to figure out but it did take me a while to see it 😊

@KSilverlode 11 месяцев назад

Really enjoyed the break-in on this one! Very fun solve!

@Coldsuu 11 месяцев назад

At this point I've heard the Phistomofel theorem explained over 50 times so I'm happy to skip it, but I also remember the first time it was explained and it was indeed very useful. I think a perfect middle ground if you want to keep explaining it in every video following your policy of treating every video like it's someones first time watching is to include the timestamps for the explanation so it's easily skippable to people who have heard it a million times like it was in yesterday's video, the chapter system is really very useful for that.

@andrewpalmer5189 11 месяцев назад

An outstanding puzzle and a brilliant break in. I thoroughly enjoyed solving that one. I thought that the 172 was going to come into play towards the end. Who knew?!

@goldcakes 11 месяцев назад

All that was missing was the Phistomefel ring explanation, although it was a little oddly refreshing not hearing it, but I do want to hear it everytime. It's one of the things that make this channel great. My time was 01:17:05 The puzzle is now _over 9000_ solves in just over 7 days, that's so crazy

@OyvindSOyvindS 11 месяцев назад

What a setting! Marvelous!

@david72995 11 месяцев назад

Little does he know but Maverick is the official 3rd host of CTC.

@LiquorStoreJon 11 месяцев назад

Very cool looking puzzle! Hello Maverick!

@quothacreations3465 11 месяцев назад

loved the break-in, so clever and beautiful--thanks for a fantastic puzzle @apiyo. Simon, if I ever went to parties, I would definitely want to have a conversation with you--thanks for another wonderful video.

@MeriaDuck 10 месяцев назад

45:15 Classic Simon saying five repeatedly, with the cursor on a trivial naked single 5... 😂

@MeriaDuck 10 месяцев назад

Never expected it to be the penultimate digit to be filled in 🤣

@curufinwefeanaro4405 11 месяцев назад

What the phog, Simon!! AMAZING SOLVE as always :)

@davidblake6889 11 месяцев назад

Thank you, Simon (and apyio). That was an amazing puzzle. Strangely, I managed to work out the break in with Phistomefel, but the interaction with the 'naughty dominoes' escaped me. But watching your solve made up for my failure. Brilliant!

@Zardox2 11 месяцев назад

Y'all, seriously. If you don't want the explanation of the Phistomofel Ring, just skip ahead. New viewers may WANT the explanation, and not want to stop, click a link to another video, then come back to the puzzle. I find it odd that so many of you want to inconvenience others, just for your own convenience. I remember the first time the I saw the ring explained. It blew my mind! Let other, newer, viewers have that same experience. 😊😊

@tessabrisac7423 11 месяцев назад

❤

@garybrittain8210 11 месяцев назад

You need to do a sudoku with maverick we need to meet him and his plane.

@piarittersporn 11 месяцев назад

What a brilliant puzzle. I love the fogs.

@HunterJE 11 месяцев назад

29:34 2 8s and 2 9s in the Phistomefel sets is big, especially with the white dots where the four thermos meet at their high ends... ::Edit:: This may be the first time I've seen Simon solve by sudoku what he could have more quickly gotten through complicated set logic instead of vice versa XD

@MarcusTheDorkus 11 месяцев назад

I was also quite surprised that he missed that! It took me 45 minutes to get the the point where I could resolve the corners, but that 8/9 logic took seconds for me.

@victorfinberg8595 11 месяцев назад

Phistomefel works both in the micro and the macro regimes

@mostman 11 месяцев назад

This was such a fun solve. Great puzzle.

@facilvenir 11 месяцев назад

30:07 for me. I got sacred at the very end, and then remembered the rules. Fun puzzle.

@susanquig7245 11 месяцев назад

I'm late as usual but I got this one and I was thrilled. Thrilled!

@shalaz1981 11 месяцев назад

I solved this in testing. It’s fun. Nice to see it featured.

@anibotic 10 месяцев назад

Interestingly, I didn't even consider that I cud use Phistomefel's Ring Property in the puzzle since i knew nothing about the 4 corner cells in the corner boxes. I went with the idea of where cud 1s n 2s go in column 3 & 7 & 8s n 9s in row 3 & 7 due to the thermos. Finding that r3c6 had to be 1(else perimeter sum wud not be accurate) n then how the puzzle unveils itself beautifully was so impressive. Thanks CTC for such a simple yet interesting design & solve!!

@MarkWiseTechno 11 месяцев назад

52:52 for me. I struggled a lot early on and needed the video's help initially understanding why the rule about the perimeter sum was relevant, but I was able to make my way through it at a fairly steady pace from there.

@bertbergers9171 11 месяцев назад

Very happy that i solved this! I immediatly pencilMarked the thermo's on the ring, then noticed the no pair adding to 3 rule. Then i considered the perimeter 172 and hey presto i had my break in. Which i reached faster then Simon, but he did talk about rings and perimeters and secrets, so i am proud of finding it fast, but i won't get cocky over it. Loved it! Lot of wonderfull steps along the road. Once made a logic error and after a while got stuck and noticed fog not lifting. I then made sure to get correct logic rather then using my pencilmarks and filling the other digit in.

@spoimala 11 месяцев назад

I don’t mind leaving all the familiar secrets and theorems unexplained, especially the longer ones like Mr. PH. I even think it could be nice to have you two make up a video that is all about explaining the different rules, theorems and secrets and whenever you are about to explain such in a solve video, just link to appropriate position on that explanation video! Or at least, please, provide the section markers as you did on yesterday’s puzzle.

@MrCortey 11 месяцев назад

I solved this a couple days ago. The rules were definitely interesting but worked well with the fog.

@Antiknight 11 месяцев назад

I really loved this puzzle with its great ideas and that double 3's in the corner moment was amazing 🥳! My solve time was 00:10:08

@CrackingTheCryptic 11 месяцев назад

Wow!

@davidrattner9 11 месяцев назад

Come on..now you are just showing off 😉 Was a lovely puzzle indeed! Should have known you would plow thru this!

@v0id_d3m0n 10 месяцев назад

Favourite deduction: the 4 in box 1. Beautiful.

@Xax992 11 месяцев назад

I personally watch 1 video from time to time, so even if you explained in previous video I might not seen it. BUT for me it's no problem to check other video especially if you link to that video and put stamp. I understand that explaining same thing over and over can be a little pain :D

@martinxoce 11 месяцев назад

The 3s in corners discovery was my favourite part of the video. Made Simon just light up 😄

@arturocaissut1071 11 месяцев назад

This was quite interesting, I was glad to notice that the path I followed was roughly the same Simon used.

@Sam_weiqi 11 месяцев назад

30:51 for me. Really enjoyable. Thanks for the puzzle!

@DarrenNakamura 11 месяцев назад

Finished in 68:38. That was the closest thing to magic that I've ever done. Truly, digits in the grid coming seemingly out of nowhere, thanks to Phistomofel.

@daniele_93 11 месяцев назад

The 1 at 38:50 was literally available since you put in the first digit at 23:25, given the X-wing in the corners 😅

@bkaozzz 11 месяцев назад

That was a tough one but I managed to finish on my own in 24:23, loved every minute!

@averygaron994 11 месяцев назад

I think you should make a YT short explaining the Phistomefel Ring and just link it in the description of every puzzle that uses it

@PauxloE 11 месяцев назад

The start of the break-in (the first digit) was easy (almost obvious), but then I somehow wrongly concluded where the next digits were, and was immediately proven wrong by not clearing any fog. I restarted, verified all my logic, and was stuck for a while. I then watched (without getting more info) until Simon said that the 2s in columns 3 and 7 were restricted - this then gave me the idea to check where the 1s in these columns could be, which actually gave the break-in. It still took a while until I solved everything, 103:03 in total (solve counter 1371).

@Ziboo30 11 месяцев назад

I love that you added chapters to the videos. Is there any chance that you could add the link to LMD if it's available ? Thanks !

@Leo-ki5cf 11 месяцев назад

Hey! Thank you for the videos they're awesome, I don't usually comment but I was thinking maybe you could do a short video with the important theorems , this way you can just put the link in the description when needed

@GQSmoos 11 месяцев назад

I got this one solved in 47:58. I love a fog puzzle

@Crystal-ef3dm 11 месяцев назад

39:12 That's such a cool puzzle! I did need help thinking to look at the phistomefel but once I knew to look there, it was a pretty smooth solve. Took me a little while to figure out the 1s and 2s as well as the 8s and 9s, but very very interesting!

@adrianhead6272 11 месяцев назад

"I don't think it involves Phistomefel..." famous last words. Using Phistomefel removes "2" from the corners forcing 13 pairs, which instantly prompts the solve. Completed in 20m59s.

@jdferreira 11 месяцев назад

I'm so proud of my 68:57 time! This was a very entertaining one. Now on to watch Simon solve it himself 😊

@BedWords_ 2 месяца назад

very proud, my first time spotting and applying phistomefel's ring all on my own :P

@kgeiger61 11 месяцев назад

That was a VERY fun puzzle. I think that is the first one where fog and Phistomefel are combined.

@MyriamTT 11 месяцев назад

Brilliant puzzle indeed.

@LithmusEarth 11 месяцев назад

This fall will be 2 years since i started watching, I appreciated the explainers when I first started watching, and I'm sure new people certainly will. I've been waiting now that you time stamp and use shorts, for you to create a short explaining a rule, and then at that time in the video when you would normally explain something, you go point over to that short. But perhaps once a month you do a sort of introductory puzzle with lots of different rules you have to explain. Even the breakdown in these rules today have become a little unnecessary, I'm getting very use to variant Sudoku; but i know you have your preferences.

@globglogabgalabyeast6611 11 месяцев назад

Fantastic puzzle! Thought I finished with a deadly pattern for a minute (only had 8s and 9s in rows 1,2,7 left) only for the 4 in r2c2 to resolve it using the green line

@douglasdunkle1592 11 месяцев назад

I agree with many comments saying to create small videos of specific logic and reference them occasionally.

@Gnarlf 11 месяцев назад

Regarding the proof from another video: I've heard it so often, that I don't need it, but for those who do 'yesterdays puzzle' can be quite hard to find, when you get recommended this video in a month time for example. So if you want to do this, then please provide a direct link to the specific video too. Although that's probably more work than explaining it again and I personally can listen to your explanations hundreds of times and still enjoy them. 😊

@nickroethel3326 11 месяцев назад

Im so dumb sometimes... "I mean gray isn't that pretty of a color but why would it be ludicrously stu-.... oh right..."

@bobblebardsley 11 месяцев назад

Can any sudoku experts give a rough idea of how much easier this puzzle would be if you could see the entire grid from the outset? Compared with a lot of fog-of-wars, it didn't seem to reveal TOO much in additional clues as the solve progressed. (This isn't a criticism, I like that the grid looks so clean at the end and there aren't about 30 two-cell thermos etc in there.)

@258thHiGuy 10 месяцев назад

Just finished this puzzle on my own before watching, and only after seeing Simon explain the corners did I realize that I correctly assumed they had to be two 1s and two 3s with flawed logic.

@basil8940 11 месяцев назад

22 mins. Simon must've been gas bagging, padding the video with scrabble props, Phistomefel, the worst kept secret, thwee's in corners, colouring the grid.

@champioz 11 месяцев назад

One solution for somewhat longer repeat explanations like the phisto ring or yin yang secrets could be to post a shorter video with a dedicated explanation and then in subsequent videos do a "click the card appearing now for a full proof"

@mrrobotman5299 11 месяцев назад

I solved it but am not happy with the logic I used at the end to get there. I assumed a pair couldn't be because of no black dot but I don't think that negative constraint really did apply. Very excited to see Simon show me what I was missing at the end. Edit: 29 minutes in and he showed me what I missed. Completely forgot the whisper.

@longwaytotipperary 11 месяцев назад

Happy phoggy + double 3party day!!! 🎉🎉🎉😁

@pacattack2586 10 месяцев назад

I am now planning on making a yin-yang thermo puzzle where the unshaded cells are negative - JUST so that you can place a 9 in the bulb of the thermo and it'd be correct if it's unshaded...