The Sudoku With Only One Visible Cell?!
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- Опубліковано 10 січ 2023
- ** TODAY'S PUZZLE **
Albin Bernhardsson's Foggy Ninefield is a fantastic riff on the Fog-Of-War sudokus we've been loving so much. Don't cheat by guessing digits - everything is deducible logically and it's quite fantastic!!
Play it at the link below:
app.crackingthecryptic.com/su...
Rules:
Normal sudoku rules apply. The grid is covered mostly in darkness. Placing correct digits in cells will illuminate more of the grid. Digits must not repeat within a cage, and must sum to the given total. The given total is always in the uppermost, leftmost cell in the cage. All cells which correctly show the number of adjacent nines (including diagonally) are marked with circles.
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As well as the Phistomefel and Jay Dyer extravaganzas, Simon's solve of Magnus Josefsson's new puzzle Castle Wall Yin Yang #1 is now available as a bonus video. You can play the puzzle at the link below (and the logic-masters link contains an example):
app.crackingthecryptic.com/su...
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That final hidden cell being a given digit would have been a brilliant troll.
I was hoping for it to be a one cell cage
Sounds like you have the startings of a brilliant puzzle, I hope you don't sit on that idea.
Hahaha that would be funny
A given digit would necessarily reveal all squares around it from the start automatically. Plus you can't fill a digit in the cell if there's already one there. What you're suggesting would basically break the software.
@@MarkWiseTechno A one cell cage would do the trick tho no?
45 minutes ago I thought the voice of a calm british person, doing sudoku might help me fall asleep, but here I am ... awake and hooked on sudoku
I didnt ever watch a CTC video in one sitting, i always fall asleep
'by the medium of Nessie' is a solving technique I hadn't come across before!
❤ for Nessie!
All 45 cages shall henceforth be known as 'Nessie'
For some reason I grew very fond of Nessie during this solve and hope to see him again 🥺
And by extension, Nessieness!
I always very much love the way Simon describes the quirks of the puzzles he's solving because it gives us gems like this!
It would have been hilarious if removing the last bit of fog had revealed a one-cell 7 cage.
That's what I was hoping for, too!
Fog of war puzzles could be in the book! Just make the grid into like a scratch-off lottery ticket. :P
...and when you get the digit wrong?
@@-syntaxerrorguy7-10 Don't. :P
I came to the comments to suggest the same. Great idea!
@@-syntaxerrorguy7-10 Buy a new copy of the book, easy 😄
@@-syntaxerrorguy7-10 Being in a book would actually make it better in that regard. The way the puzzle works on the computer, entering the correct digit close to the fog HAS to reveal the surrounding cells in order to actually continue the puzzle (and therefore confirming it is correct). But getting confirmation that a digit is correct is usually not a normal part of any sudoku, on the computer or in a book. So if you had to reveal the cells yourself, you could still get a digit wrong, just like in most any other sudoku puzzles.
Rules: 06:49
Puzzle Solved: 46:49
What about this video's Top Tier Simarkisms?!
Bobbins: 5x (41:39, 41:39, 41:39, 41:39, 41:42)
The Secret: 4x (11:47, 11:54, 11:57, 12:05)
Maverick: 3x (32:45, 32:45, 32:51)
Phistomefel: 2x (03:53, 04:12)
And how about this video's Simarkisms?!
By Sudoku: 11x (14:26, 16:18, 18:41, 18:53, 19:17, 27:34, 27:49, 28:10, 28:15, 29:31, 45:26)
Beautiful: 10x (00:29, 02:54, 17:01, 18:17, 33:59, 37:31, 39:20, 47:09, 47:12, 47:50)
In Fact: 9x (00:21, 01:20, 05:25, 07:37, 10:52, 18:24, 29:04, 36:36, 42:57)
Clever: 6x (06:19, 15:37, 15:40, 33:53, 47:14, 47:18)
Brilliant: 5x (01:10, 31:16, 31:18, 46:46, 46:50)
Wow: 5x (17:03, 33:53, 33:56, 46:04, 46:04)
The Answer is: 4x (15:27, 16:14, 16:36, 38:38)
Out of Nowhere: 3x (25:18, 25:20, 43:51)
Hang On: 3x (18:15, 30:19, 42:42)
Obviously: 3x (06:30, 08:44, 17:48)
Pencil Mark/mark: 3x (27:21, 33:06, 38:00)
Lovely: 2x (17:03, 35:05)
Ah: 2x (42:57, 47:52)
Good Grief: 1x (37:33)
What on Earth: 1x (33:19)
Recalcitrant: 1x (43:34)
Naughty: 1x (43:34)
Of All Things: 1x (14:26)
Masterpiece: 1x (04:17)
Surely: 1x (23:18)
That's Huge: 1x (22:22)
Cake!: 1x (03:01)
Most popular number(>9), digit and colour this video:
Thirteen (13 mentions)
One (97 mentions)
White (3 mentions)
Antithesis Battles:
White (3) - Black (0)
Row (11) - Column (7)
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!
"Recalcitrant"
(adj.) Having an obstinately uncooperative attitude towards authority or discipline.
(n.) A person with an obstinately uncooperative attitude.
I am amazed of how Simon just casually drops wonky words and phenomenal phrases into my vocabulary.
“Come on, brain”
good bot!
"Let's Get Cracking" at 10:05
Simon's time: 36m 44s
Lovely bot!!!
11:55 Seeing the joy on Simon's face when he knows he is about to reveal the secret of sudoku makes me happy!
Same!😁
Given how long it took to reveal a second circle, I was really hoping that the one in the starting cell was the only circle in the puzzle
I mean there can only be so many circles
Simon is the Godfather of Sudoku.
Complete with haunting theme tune it would appear
With a knight's move restriction on his pillow.
No Horses were harmed in making that statement.
@@wdvorak the fbdnfddfsdddbdbdbcbcbbsncnbbcbbvnsbmsccbcbcbccccgcbbbcbccncbcnccbbvcbdccnscccbcbdcbvncvcgcccncdccvbbbcndbdvncddcvcccbbbbcbbcdbcdcvcbcvbbcbvbdssccbccvbcbcbcndscvbcncncbccdcnvvccndvcnbbvcvdnnvcbcbvbdcvbcbccndvccnccbcnbcbnbcscbcbvccfbcncbscdccnbvcsvbssbdb xxx
Best wishes for an uncomplicated recovery to your father!
Agreed. All the best and look after your own mental health too in this time
Astounded I am from the start,
For though he has quite a big heart,
His brain leaves me dazing.
It's freaking amazing.
No fooling. This Simon guy's SMART!
People are always commenting about how Simon finds a hard way when there is an easy way. But, if what we consider hard Simon finds easy, then every way is easy.
I've been away from the channel for a little while and I'm SO glad I stumbled back to this. It was my first fog of war puzzle, and I some how managed to solve it, even if it took me over 2 hours... Thanks for the beautiful solve, Simon!
Same here! Well done us
This is the second puzzle featured on the channel that I've managed to complete! It took me two and a half hours and was a lot of fun! Can't wait to watch Simon solve it in a fraction of the time!
Fog of War puzzles are one of the greatest inventions of 2022 and this one was no exception 👍🏻👍🏻
Completed in 35 minutes, I found it helped to mark 9s in a colour and then that prompted me and made it easier to check for the negative constraint.
Hi Mr. Anthony! I hope you feel better soon. Please take good care.
What a beautiful song you’ve chosen for this intro! And wonderfully played too… would love to listen the full version! 😊 now let’s see today’s sudoku 🤓
Thank you! There is a slightly longer version in the outro :)
@@CrackingTheCryptic It's lovely
Oddio, un italiano
Name of the song pls
@@yasssighs6034 The Godfather theme song.
One of the few puzzles I could solve on my own (mainly because I didn't have to search forever for a break-in). I enjoyed it very much!
This is a general advantage of fog-of-war puzzles, because they limit the available spots to look at and lead you through the intended solution. At the same time the logic can be a bit more challenging, because you will stare at it long enough to understand that you need to think differently or a apply a strange rule.
What a fun sudoku! I love how the fog forces your attention to different parts of the grid at different times.
Absolutely Nice! Simon is The CRACKER of any Sudoku
Rules 6:13
Let's get cracking 10:03
I can’t believe I’m to the point of solving puzzles featured on the channel. This one did take me 90 minutes, so a little slow, but I got there!
I really, really love these fog of war puzzles. One of the hidden benefits of them is that they give such restricted information that they serve a bit like training wheels. Some of the arithmetic tricks in this one would have taken me AGES to spot, had it not been so obvious that there were only a few places to look. So it makes them a bit easier, while still using individually tricky sections. Also VERY satisfying, like you're doing a series of little micro-puzzles.
I love the fog of war rule soooo much, it's so much fun how discovering information is part of the puzzle, you can't just "come back to this area" as easily :D
My first time actually attempting a linked puzzle! 118:45, split between last night and this afternoon, and I got stuck so many times and had to inch forward in the video until Simon brought up something I hadn't thought of...but the "not a 2" in Box 2 and the 4 in Nessie were the only ones he had to spell out the whole way for me. It was fun seeing the different logic we used for the cage in Box 3 - he relied more on cage:Secret ratios, whereas I applied some of his "where does this cell go in that Box" logic, from previous puzzles. 😅
Wow… Seeing Simon blasting through this puzzle is astounding, as always. I must admit, I struggle a bit with Killer Sudoku, as I don‘t have the totals memorised. So I utilised the killer sums list in the CtC book. And it still took me 147 minutes (granted, I was rather tired when I started).
Funnily enough, my solution path was basically the same as Simon‘s, with the same deductions about the shapes of the 22, 28 and Nessie cages (minus some single not so useful digits). What made me struggle for way too long was the need for a 9 in r5c6 because of the missing circle around the 1 in r5c7.
And then I went on for about 45 minutes to do what Simon managed to solve in the last 10 minutes (so, beginning at about 38:00 into the video).
Still, quite proud to have solved it. Very interesting puzzle, that.
Godfather Godfather
Francis Ford Coppola
Intro to ninefield with
Fog all around.
Solving this puzzle brings
Criminological
Insight where numbers were
Put in the ground.
Good one, Amos!
Magnificent from you!!
Absolutely loved that, thanks Albin!!
This is one of the best recent videos, especially for a casual sudoku fan. It's a simple logical flow and exciting as more fog gets revealed. No complicated math or bifurcation (easier for casual fans to follow). This reminds me a lot of the original miracle sudoku video in the approachability and excitement that Simon has throughout.
Incredible setting and solving, what a wonderful Fog of War puzzle!!! Just so clever and thrilling throughout, all the way to the absolutely lovely sudoku trick disambiguating it at the end!! Wonderful guitar playing as well!
I did this one a few days ago, 101:46 for me, and I felt quite proud having completed it :)
I would have thrown in the towel by the 100th hour
109:59 for me. But damn did it take me a long time to spot that final trick
@@Suleiman212 That's 101 minutes, not hours
29:01 for me. Rather proud, actually. The solve path was elegantly linear - at any time the next step was not too hard to spot. I had to think for a while whether the rules did state that all cage totals were present and concluded that this just *had* to be so - otherwise it is hard to see what the net step could possibly be.
Then I watched Simon's solve which was identical to mine, modulo some Simonesque ignoring minor low hanging fruits 😎. I love that man...
I so love the little hat you've got left on Nessie at 36:00. She deserves it, finding her was one of my favorite parts of this solve. For a moment I even thought something was broken before I noticed how to make her tail. That feeling of going from "well this can't possibly be right" to finding the way to make something tricky fit in is one of my favorite parts of these puzzles.
This is a fantastic puzzle, honestly. The design of the revealing cells is absolutely delightful. I look forward to seeing more of these puzzle types.
Honestly this is one of my favorite videos you make as it was more my speed lol. Some of your other videos are mainly long and tedious which because of adhd causing low attention span but I also love strategy which is why I still watch the videos as I gotta find better ways to strategize and sudoku has an oddly satisfying strategy to it especially all the challenges you do
Really enjoyed this one, especially the way it kept introducing new challenges right up to the end. Some puzzles require loads of effort for the break-in, then collapse quickly after that, but this one kept going!
The absolute joy I got out of the successful fog of war reveals made this a new favorite. Kudos to Albin for the setting.
I'm glad you mentioned the Kickstarter; I missed the first one completely and almost missed the pre-order period this one. Promptly ordered both volumes 😁
Love these somewhat "simpler" puzzles where I can see the next clue before Simon does from time to time. It's nice to wait in anticipation and see his reaction when he sees it.
Absolutely brilliant. Not a single step wasted in the setting. It's incredibly impressive and elegant.
in love with this fog of war sudokus
One of the best puzzles I've had the pleasure to solve. Was a great way to start a rainy Saturday. Very satisfying path to the complete solve as well.
That was fun! Thanks! I didn't think I would be able to do it, but the logic just flows so nicely.
Definitely one of my favorite "fog" puzzles. Yay!
I absolutely love these Fog of War sudokus.
Loved the guitar playing! And that you seemed to really enjoy it, too, on the outro! Sweet! Also....great puzzle.....but really tricky! Loved it!
I absolutely love these fog of war puzzles. I got stuck with the 12 cage in box 8 because I didn't understand the impact of "not a circle" after which I failed to, of all things, apply sudoku (which I've given Simon such a hard time about in the past 😅). From there, though, I managed to work my way through the rest of the solve. So great!
Lovely guitar music, fascinating puzzle, such a great video in every way. Simon, I really enjoy your pleasure in these puzzles, these fog of war puzzles in particular. I think that they create an environment where one must be focused, and it is therefore perhaps easier for the solver to see what is intended and think about it without being distracted. (Not speaking of you being distracted, thinking more of myself.) The circled cells showing the number of nines surrounding, the title of the puzzle - all very clever. Thanks for this video. Very best wishes to your father on his recovery from knee replacement!! I hope it brings him a major improvement in his quality of life.
Glad all went well with your call and it allowed you to focus. what a fun puzzle. actually managed it. I do like how the fog does help narrow the options to focus on
That was just fantastic. I've never seen this rule about adjacent 9's. I really love it.
just over an hour for me; I swear I stared at that last disambiguation for a solid ten minutes before seeing how to resolve it through Nessie-ness. do love the FOW puzzles precisely because they're always telling you where to look. thanks Albin and Simon
When Simon was giving the example for how the circle worked at the start I realized that the highest number it could be is a three and only if it’s in one of the corner groups around the central box. I then immediately thought to myself that that’s almost certainly going to show up in the actual puzzle, and I was right!
this is by far the most beautiful sudoku I have ever seen...
Amazing puzzle. I thoroughly enjoyed working my way through this.
That was so satisfying. Especially Nessie!
My mum had a knee replacement a couple of weeks ago. She needs to work hard but already feels better and more mobile. I hope your dad will have a positive experience as well.
Excellent! Another CTC video. I will enjoy watching this while sipping a cup of my favorite blended tea.
🍷for me (stressful day)
That intro, WOW.
I finished in 78 minutes exactly. I started off quite well. I had to remind myself of the negative constraint, which came in handy near the end after 10 minutes of me searching for what to do. Unfortunately, while this did clear the fog at r1c6, I struggled for 16 minutes to see the cage total. I felt insane trying to calculate massive variations of possibilities. This must be what Mark feels like when he does that. Fog of war puzzles are always my favorite type. Great Puzzle!
Hope your dad is doing well. Thanks for the videos; they are both engaging and calming.
Loved the puzzle and the video!
I love to see when the fog clears. What an exciting puzzle.
That was a lot of fun to watch, and to pause and play along.
I paused at the start and did the puzzle, then watched you do it in 30 minutes. Took me three hours XD ego boost yet humbling. You're brilliant, definitely earned the subscribe.
my spouse is in recovery for leg surgery as well (bunionectomy in their case) and so i was very pleased to hear your father's knee surgery went well!
This was the first one that I tried to play along with. Still needed to watch your video for help and finished with a 89:03 but am still proud that I finished it!
Hope your dad is well and healthy. Thank you for a wonderful puzzle!
As always, love the guitar.
Beautiful rendition of “Speak Softly Love” for intro and outro . Would love for it to be included in the book/guitar stream! Good news that your dad did well with knee surgery! Love the foggy puzzles!
Oh, I had a great deal of fun with this one. Something about the focusing effect of fog-of-war puzzles really appeals to my brain, making it clear where to start and then bringing in more and more different angles I can work as the puzzle opens up. 39:04, so I can give myself a pat on the back for a solve in less than the video time.
I love seeing more and more fog-of-war puzzles showing up on this channel. What a fun new (to me) ruleset.
I managed to solve this one after picking at it on and off for a few days. I needed a little prompting from Simon about the 1 in the 22 cage but from that deduction everything unrolled wonderfully. I agree that I really enjoyed the circled 3 cell, the way that you can get that lovely arrangement of 9s around it
Took me a couple of hours, but I got most of it out on my own. Love these fog of war puzzles!
Puzzle setter, take a bow!
I'm actually quite pleased with myself for solving this one. definitely took more time than this video, but I made mostly all the same major deductions Simon did. I only got stuck finding a few pointing pairs or removing candidates based off deduced information, but when I go to watch this video, I find the solution before Simon gets to the same point.
Probably my favourite solve of a puzzle from this channel so far. Curious to see how you'd attempt to include this in "Best of Cracking the Cryptic 3" if you ever planned to
Great guitar performance as well 😊
Love simon serenading us all in the intro, lol. Love this channel so much.
Excellent guitar work Simon. The sudoku was cool too.
Wow, you are incredibly smart. Just as those puzzles that you solve. I know I would be able to solve them, but definitely not in 1 hour. Your logic is impeccable and your videos are impressive, which always leave me astonished
Intro: The Godfather of Sudoku
Not watched yet but just want to send some love for Simon's Godfather intro. Bellissimo Simone !
What an intro. Awesome. Not gonna watch the video now. I have seen enough. Really.the intro was killer. So perfect, everything else is appendix.
It took me 2 hours and I did not spot the logic with that 45 cage. Once I had taken that bit of solving from you, it all flowed again. Beautiful puzzle!
What a beautiful puzzle 😍
This one felt smooth untill i missed a negative constraint, then i had to watch Simon follow the solvepath and while he was doing that i noticed what i missed. That made me continu till the end.
57:45 A bit longer then i expected when starting, but i loved it.
Thank you @Albin Bernhardsson and @Simon, you did great on the solve!
Fog of war puzzle, looking forward to this!
50 mins for me with a couple of hints and tips on the way thank you!
40:07. The satisfaction of managing to solve in the same time as Simon and it turns out the same logical path (particularly unsurprisingly in a fog of war puzzle) is extreme!
Excellent puzzle. Wishing your father a speedy recovery.
Great puzzle, and in spite of a one-cell revealed, definitely approachable. The 2's in boxes 2&5 stumped me for a while, then the sudoku around "Nessie" stumped me again towards the end.
This puzzle was amazing!
Best wishes to you and your dad. I hope he has a great recovery. Love the Godfather Theme.
Perfect I have to make food and then a knitting session, you come in perfect as entertainment while I do those both things 😀
Really liked this puzzle.
38:04. I loved this puzzle! There was such a variety of different techniques and types of logic in this, it was like a buffet
Would it be possible/practical for Simon to have another channel for posting longer musical performances? I like hearing Simon play and sing.
This is the first of the puzzles I've tried after watching your channel for a bit, and although I got stuck a few times, I ended up completing it in 2 hours and a bit.
What I find interesting is I frequently did use similar logic, but sometimes I approached it almost in reverse from how you did, or maybe it was just the first time my brain was doing the basic logic you skim past. But in any case in certain parts you saw pairs and obvious things in a way that I just can't yet when doing the puzzle myself.
I think I also don't trust the usefulness of my pencil marks yet, but I'm getting there.
After seeing a couple of these fog of war puzzles, which seem skillful but approachable, I finally decided to try my first ever special rules sudoku, being this one (obviously also including killer cages). Since watching CTC for a few months I now fly through my sudoku app's Extreme regular style puzzles, and I do them because it makes my ADHD brain happy with simple but challenging stimulation. I more and more often found myself following the logic of the special rules sudokus on the channel and felt more familiar with the methods, I managed to do this puzzle in just under 2 hours, which is not a great feat, but one I am definitely proud of!
I would love it if the next CtC book came with one or two fog of war puzzles using scratch card material as the fog.
Back cover scratchie probably would be doable print-wise without too much extra cost. Might be a bit of a challenge keeping it scratch-free for shipping, though.
An alternative would be to have a scrambled grid showing the contents of the cells, as well as a key which showed what cell from the scrambled grid would need to be copied to each square of the sudoku.
I was thinking of a couple of inserts. They could even be made to look like lottery scratch cards for extra fun.
Best wishes for your father’s rapid and complete recovery, Simon.
Fog/shadow puzzles are my favorite on the channel!
That was a delightful puzzle to solve! And somewhat approachable. :-D
Best wishes for your father's recovery!
Loved the Godfather intro! I need to find those tabs, really well done