Thank you so much for the feature, and I'm very happy that this puzzle in particular ended up being my debut! I literally dropped my phone in surprise when this came up in my subscriptions! You nailed almost all the logic exactly as I intended, but you actually found a way to break into box 1 that I hadn't thought about. First of all, I proved that the two outlying cells on that first line couldn't be the same digit because there would be nowhere to place that digit in box 1. That forces r3c3 to be 8 or 9 because one of it's neighbors had to be 3. Now there are three cells left in box 1 that could be 6 or 7, and since both 6 and 7 can only neighbor 1 with 2 unavailable, the 67 pair must go in c1, forcing the 1 in r2c1. But I really liked the way you saw it! Unfortunately, you did make one logical misstep towards the end of the puzzle. After commenting on the fact that we didn't know if the line in box 6 continues past r4c9, you determined the line was a renban and proceeded to solve it as if we did know the line ended there, which ended up being correct, but not logically proven. If you had solved the box 9 line first, you would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line. But that's a really minor error, and you did all the logic correctly to prove the line ended there, it just happened to be after you assumed the line ended there. Edit: To explain the title, I made this for the Discord's February monthly prompt of "Professor Hale-White's Ancient Dig Site." So clearing the fog is like an archaeologist brushing away dirt to reveal ancient pottery or whatever that's deteriorated over the years, and having to determine what its purpose was back then. Thanks again!
Really enjoyed this solve. And yeah, it really lived up to your title - felt myself being very cautious to chip away at exactly the right piece. Great work!
So are the lines supposed to mean something ? Because I can't figure the rest, but the first three boxes seem to spell out the word DIG, and then a W in box 4 ? Or perhaps these glyphs are part of an ancient alphabet discovered amongst the artifacts…
As a casual viewer and in no way an avid sudoku solver, I'm very proud of myself for also catching that logical misstep of identifying that particular renban. Came to the comments to see if anyone else had spotted it; lo and behold it's the creator themself! Congratulations on the feature, and well done on the construction. Twas a very entertaining watch😇👏
46:16 - Surely the 5 could live on the 'S' in box 8 at this point. Had you realised a 1 was missing from the central box earlier, and that this would disambiguate the 'S', your move is fine, however you hadn't yet done that.
At 48:54, although we know the purple line must have a 3, 4, and 5, we still don't know if the line extends into the fog and some of these digits are on some of the foggy cells. I think that if you analyze the choices available for the six open cells in box 6 based on the known row contents, it becomes clear but Simon seems to have skipped that.
What I love about this puzzle is that the start and end of this puzzle are both in box 1. We have break-in on the Whisper line, and also resolve the deadly pattern by the Whisper line, which is like a complete story line.
That’s why I prefer watching Simon because he gives the perfect hints on accident with what I am missing from a solve that keeps it fun. When I watch Mark every time I’m stuck there are no subtle hints it usually just breaks the puzzle wide open for me lol
I think he just missed it, but a possible path to solve it that I found is this: if you would first look at the "spider" line in boxes 8 and 9 at that moment, you could see that it isn't a region sum line because the segments in box 8 are different (8 and 9), and it cannot be a renben because it cannot contain a 7 but has an 89 pair. That means it's a German Whisper, and if you look at the high-low alternating digits, R8C7 has to be low but cannot be 1, 2, or 3, placing a 4 there (and thereby solves a lot more 7s, 8s, and 9s in the bottom three rows by placing the two 9s consecutive to the 4 on the line) but it also places the 4 in box 6 as it cannot be in column 9 because of the 34 pair in box 3 and now it has to go in the middle of it, revealing the rest of the box and that the renben line ends there :)
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
I would love a tear-off calendar with random quotes of simon without context. Like ''its more extreme on the green side of five', 'Now I don't know whether it goes this way or that way, it depends whether or not blue and orange are the same colour.' or in this video 'nine, eight, nine, nine, eight, BINGO!'. (that's not how bingo works)
My first attempt at a non GAS puzzle and managed to succeed (without fog cheating, of course!) after 79 minutes. A long time I know but I'm so chuffed. Thank you to Mark and Simon for the content and of course the brilliant construction!
My goodness!! I've been watching these nonstop! But today, I'm watching it before bed. I love the fog of war puzzles. I'm finally starting to catch onto things a little quicker. It's been bringing me a lot of joy in an otherwise rough patch of life. Thank you :)
Simon, Your many secrets of Whispers are true And the given digit rules out a two They don't contain five Every other is high But, Simon, tell me! Why is it blue?
I know, right. I coloured my lines green/blue/pink for whisper/sum/renban, as per the sacred orthodoxy. In cases where I'd narrowed it down to one of two types, I coloured each half in a different colour to remember the options.
At 42:37, you can deduce that the RSL in box 5 has to sum to 11 or 15. It can't be 8,3 or that would break the dot, so there must be a 7 on it - which solves the dot. And note that there can't be a 1 on the same RSL, so 1 can be placed in box 5.
I think it's called Ancient Artifacts because you're meant to think of the fog as earth that you're digging through in order to uncover all these strange objects. You don't know what they are at first until you learn more about the context of the location in which they are found, just as is frequently the case with archeology. A wonderful puzzle. One of my favorites that Simon has done in recent memory.
48:49 You don't know that the renban line doesn't continue into the rest of box 6. You need to look at box 9 first to solve this logically, or use uniqueness in box 1.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
I'm so happy I didn't let the length of the video discourage me from trying this one because I really love those fog sudoku puzzles. Finished in 23:37 minutes .It went so smoothly and was so enjoyable 😊
The definition of the Renbans line isn't really clear. Nowhere in the definition does it state that the set of numbers forming a Renbans line must be capable of forming a consecutive sequence.
@48:50 placing the 3 is not a logical deduction since the line could theoretically fill out the rest of box 6 and a 3 could be placed in r6c8. I am stuck at this point in the puzzle. Does anybody know how to logically proceed?
You are supposed to approach the whisper in b9, which you know has a 123 in r7c789 and a 4 in r8c789. At this point, you can rule out a region-sum line because 8 does not equal 9 and a renban because you can tell the line going into r8c8 must be 5 long and 9 and 3 would need size 7 to make a renban work. This allows you to place a 4 in r8c7, which locks down the 4 in b6. And this reveals the size of the b6 line.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
the deduction at 35:55 was really cool. I totally missed that and it took for forever working out what the numbers could be with the dot in the center box.
That was the one step that escaped me too. I reached that point and could get no further. I had to watch Simon. Then smacked my forehead, as it seems so obvious once it's pointed out.
This puzzle was such a great mystery. It'll go down in CTC history. I applied all my brain, Did the work with great strain, And now both my lobes are all blistery.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
Simon did the b6 line a bit too soon. He should have had to tackle the b9 line before he knew enough about the b6 line to know the positions of the 345, given the b6 line still could have grown when he placed the 345.
I don't get putting the 3 in box 6 at 48:58 The fog still hid the end of the line and if the line went up into box 3 it could have potentially pulled a 3 from there. I was able to complete row 8 first (easy once you realize it's a whispers line), which led me to figure out that 4 had to go in the middle of box 6, and then I could see the end of the line and place that 3.
This was my first go at a Fog Of War puzzle and I loved it. Also, I enjoyed it so much I then came back to watch Simon’s solve to see where my logic matched with his… very lovely puzzle.
I came on here to see if anyone else thought that. It could have still gone in box 7 at that point from the 15 pair in R8C5? Unless I missed something.
It's only fitting that the last digit in the fog of its own is the 3 in the corner. Very nice puzzle. It's probably called Ancient Artifacts because you uncover the lines and dots but then you also have to study them to find out what they are - like archeology, finding, cleaning and identifying ancient artifacts.
I would really not mind if ctc posted a fog puzzle everyday , they are super fun to solve and this one was very fun to find what which line represented .
Love this puzzle. To keep things organized, I made all my lines grey until I knew what they were and then used the standard green, blue, and purple colors for whispers, sum, and reban lines respectively. That way I could keep straight what line was what instead of them all being different colors
Even if I did not like the concept of Fog of War puzzles, I would still be happy to see one come up on the channel because you enjoy them so much, Simon! You absolutely chortle with delight - makes everything even more fun!
48:44 Simon you assume the purple line do not extend, it might extend to r3c9 , it is true to say the line must include 3,4,5 but I is not necessarily be the cells you put it. Just a minor point a really good solve anyway❤️
ngl before i saw the FAQ i thought a person (not a programme) did this and i was immediately intimidated edit: how does the robot tell the difference between "two" and "to" and "too"?
This looked like such a fun puzzle! Even from the first point I new exactly the first step and that just has to be from watching this channel the last week since finding it, I am starting to really understand the logic behind these puzzles.
I’m somewhat of a straggler to these videos, and I miss quite a few. So I’d never heard of these special types of lines, but it was super satisfying figuring out on my own the logic of the different types. Thanks for a great puzzle!
I saw the thumbnail and took a try for myself first, fog of war puzzles tend to have a singular line of logic based on what's revealed, so I felt confident it was an approachable one that I could maybe figure out! Ended up correct, 39:34 for me, and it felt like I had to pull out every trick Simon has taught me about each of these lines! It felt very gratifying that there was almost always a fog reveal after making logic connections, as though the puzzle were congratulating me for each segment.
That was a fun puzzle! I usually don't like "figure out the rules"-style puzzles (I don't know if there's a more formal term for these) but this one felt reasonably approachable (while still being challenging enough to be enjoyable). I'm proud to say I didn't make the same logical error on Box 6 that Simon did! Finished in 39:28, thanks for the puzzle!
@48:50 I think Simon had a leap of logic that was not founded. Please correct me if I'm wrong. Why couldn't the renban line in box 6 continue to fill the rest of the box? Then it could be a 9-cell renban and the 3 could be in the bottom center position in the box rather than the lower corner.
Here's a low bar. 2 hours, I did make a cup of tea and was running a meeting for half the solve but even so, I got badly confused on the box-5 renban... Oh, and I didn't read the rules so thought I broke everything, when r3c8 didn't have valid digit. Rather than read the rules I back-tracked and wasted so much time looking for my mistake that I hadn't made. Still so enjoyable; these fog of war puzzles are a blast.
I notice you haven't streamed any puzzle games in a while, but if you do ever take it up again, may I suggest Patrick's Parabox. It's a well paced block pushing puzzle game, and gets to play around with recursion in some very interesting ways.
Finished in 35 minutes of sheer delight 😍 with only a couple of accidental cheats and one lucky escape ... because the grey kropki on the edge of fog look just like white kropki that are partially fogged over, I kept forgetting that they could be black kropki in disguise. 18:20 ... Here we have a line that can't possibly be a Renban, so *of course* Simon draws it in with the colour that we use for Renban lines, because why wouldn't you? Never change, Simon 🤣 Also impressed with Simon's determination to leave 7s pencilled onto a 1-2-3-4-5-6 Renban!
At 35:58 he concludes that the 4 must be in the cell but why cant the four be on the black line (other 5 cells in the box)? Additionally the "Renban" explanation does not contain the word "consecutive" so this becomes magic to the uninitiated.
31:32 for me, my favorite deduction actually happened at the part that Simon did wrong, where questioning whether R9C6 in box 9 is on the line lets you place a 5
That is an absolutely lovely puzzle 🤩👏🏻👏🏻👏🏻 Took me only a little bit longer than Simon 😉👍🏻 The way to figure out the lines is brilliant and we have a 3 in the corner 🎉
Just revisiting what is possibly one of my all-time favourite sudoku puzzles… I think that box 8 is a big key to this puzzle - the given 2 in box 1 is incredibly powerful for beginning the puzzle but, once begun, you can do lots in boxes 1,2,3,4,7… but then you hit a bump - once you start to break into box 8, everything else pretty much falls into place.
First attempt at a fog of war puzzle. Loved it, although I got stuck for a while in box 5 - just didn't see the 3,4,5,6 possibility on the renban line for the longest time.
@21:00 This was made far more complicated than necessary. Don't need to know "the secret". Just that the total for the box is the same. So the non-line cells add up to the same. Box 4 is max 10 Box 2 is min 10 So they're both 10.
Watching the video, I remember having a different path for box 5 and 8. Something about the position of 3 in box 5, and the region sum. if R6C5 was a 3, that would force 7 on the line in box 8, and the sum there would be 15, and you'd need R6C4 to be 12 and that's not a sudoku digit. Forcing R5C6 to be a 3. Getting box5's 2 from the 3, (not 3 from 2)
I was hung up a bit by box 6 (c49 minutes) where I noticed the line could extend to eight cells in the box and.a 9-cell Renban tells me nothing, so I had to analyse the line in box 9. I also spent too long on the box 58 S line before it was properly resolved.
First fog puzzle I've ever solved, in a little under an hour. Thought I'd blown it at one point before re-reading the rules and noticing that a dot was (in Kropski terms) either white or black. A very nice workout.
26:31, I kept forgetting the dots were gray, not white. I made that mistake once and I think I got lucky a couple other times. I also messed up the 6 and 7 in Box 1 right at the start, forgetting r3c1 could be a 6 and the grid didn't clear, showing me my mistake. Edit: looking at the comments, I may have made an assumption in Box 6, too.
Interesting puzzle! I got this in 41:55, and was solver number 2258. I decided to color the lines as I deduced their meanings, using the standard colors, green for German whispers, blue for equal sum, and purple for renban.
🎉🎉 I am so proud! I did it, and in the same time as Simon. 43:49 Happy Dance and a piece of chokolade 💃🕺 Thank you Simon for Always being an inspiration 🙏
I'd like to see video-games back, I had so much fun watching the series from the witness to taiji, specially baba is you. Perhaps I'm 4 months late, but I can't understand why it stopped. Please play more video games, and sorry for posting this on an unrelated video.
i'm not sur but he says that renbans have to be consecutive 40:45 for exemple but it's notified renbans are "sequence of non repeating digits" that mean can be 1,3,5,7,9 for exemple do i'm wrong ?
I especially enjoyed this solve due to the consistent difficulty. Each new digit was easy enough to find and the puzzle kept guiding you as opposed to 25 to 30 minutes to get 2 or 3 digits, then solving the rest of the puzzle in a handful of minutes.
11:32 The colouring might have given away the way of a line... And I'm not sure if it's by design (Sven's design, I mean) or by accident, as neither of the two ends of that line are outside the fog.
26:56...but cannot count it. I inadvertently swapped the 6 and 7 in box 1, not realizing that the 6 didn't have to start that line. Because of that when I got the 4 in box 3 which happened to be correct and released the fog, but then led me to not be able to distinguish the 16 and 25 in box 3. Then I noticed that the 7 could be the 6. And it resolved my issue. It appears that the distinction between the 6 and 7 made no impact on the rest of the solves up to that point, because pencilnarking them 67 appears to not take away from my other marks/solves, however, I cannot be certain. Although now typing this, maybe I will take it since the 56789 in box 2 hadn't been resolved so that had no impact and since the 67 error was in column 1 it could not have impacted boxes 4 and 7 whatsoever. What do yall think?
01:24:47 - 87% slower which is faster than my normal 100-200% range, I lost a lot of time because I was coloring high and low digits across the entire puzzle more or less out of OCD at some point. I enjoyed the puzzle.
Simon makes me laugh sometimes. :) At 18:15, he considers whether the line in box 4 can be a whisper. He looks at the convoluted way that 4-9 doesn't work, when the 6-1 option was trivially broken.
Excited to get this with no guesses in 34, then watched Simon show that I'd missed some logic that would have kept things ambiguous for a bit longer. So no unlucky guesses? Still a quite fun puzzle.
@@adrianhead6272 I don't believe you! I've watched tonnes and tonnes and I've never seen it before!....though thinking about it, maybe I just make the same mistakes and so I don't realise it....ARGH
@48:40, you've got a bad leap in logic that happens to land you on your feet. Because the line is still in fog, even if you know that it's renban, you don't know where on the renban the 345 needed to connect the 2 and 7 have to go. They could hid in the fog, so before you can logically place them in the three visible cells, you need to deduce enough of the puzzle to reveal that there aren't any renban cells hidding in the fog that could smuggle away the 345. To do that, you need to focus on 'the spider' line. Realizing that the spider must be a whisper-line moves you through a series of deductions which eventually get you the two in column 9 you need to disambiguate the 26 pair on the renban, which at last reveals that the line terminates. From that new information it follows that you need a 345 on the line to connect the two and seven and they must be exactly in the three spaces available on the line. It's a good pzzle you just got to take a lucky short cut in your solve.
![This Sudoku Is Astonishing [MUST WATCH]](http://i.ytimg.com/vi/W3h5_lkqnTU/mqdefault.jpg)
Thank you so much for the feature, and I'm very happy that this puzzle in particular ended up being my debut! I literally dropped my phone in surprise when this came up in my subscriptions!
You nailed almost all the logic exactly as I intended, but you actually found a way to break into box 1 that I hadn't thought about. First of all, I proved that the two outlying cells on that first line couldn't be the same digit because there would be nowhere to place that digit in box 1. That forces r3c3 to be 8 or 9 because one of it's neighbors had to be 3. Now there are three cells left in box 1 that could be 6 or 7, and since both 6 and 7 can only neighbor 1 with 2 unavailable, the 67 pair must go in c1, forcing the 1 in r2c1. But I really liked the way you saw it!
Unfortunately, you did make one logical misstep towards the end of the puzzle. After commenting on the fact that we didn't know if the line in box 6 continues past r4c9, you determined the line was a renban and proceeded to solve it as if we did know the line ended there, which ended up being correct, but not logically proven. If you had solved the box 9 line first, you would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line. But that's a really minor error, and you did all the logic correctly to prove the line ended there, it just happened to be after you assumed the line ended there.
Edit: To explain the title, I made this for the Discord's February monthly prompt of "Professor Hale-White's Ancient Dig Site." So clearing the fog is like an archaeologist brushing away dirt to reveal ancient pottery or whatever that's deteriorated over the years, and having to determine what its purpose was back then.
Thanks again!
Loved every minute of solving this puzzle, thanks for setting it :)
Really enjoyed this solve. And yeah, it really lived up to your title - felt myself being very cautious to chip away at exactly the right piece. Great work!
So are the lines supposed to mean something ? Because I can't figure the rest, but the first three boxes seem to spell out the word DIG, and then a W in box 4 ? Or perhaps these glyphs are part of an ancient alphabet discovered amongst the artifacts…
As a casual viewer and in no way an avid sudoku solver, I'm very proud of myself for also catching that logical misstep of identifying that particular renban. Came to the comments to see if anyone else had spotted it; lo and behold it's the creator themself! Congratulations on the feature, and well done on the construction. Twas a very entertaining watch😇👏
Amazing setting, well done!
48:57 after saying the line could continue into the fog, Simon assumes that 345 has to go on the visible segment...
Simon CHEATED To Solve This Puzzle!
Yeah, I can’t see why that purple line couldn’t wrap down entire box so that three would be in r6c8 (it can’t be in col9 because of 3-4 pair in box 3)
Exactly what I came to point out
He didnt articulate it but If he had continued down into the next cell both 3 and 8 would have had to go in r6c7 or r5c1 would be broken
@@barcruiser101What if it continues for 2 cells, then you can put 9 in r5c9 and 8 in r6c9
46:16 - Surely the 5 could live on the 'S' in box 8 at this point. Had you realised a 1 was missing from the central box earlier, and that this would disambiguate the 'S', your move is fine, however you hadn't yet done that.
At 48:54, although we know the purple line must have a 3, 4, and 5, we still don't know if the line extends into the fog and some of these digits are on some of the foggy cells.
I think that if you analyze the choices available for the six open cells in box 6 based on the known row contents, it becomes clear but Simon seems to have skipped that.
Also the 3 on the purple line could have very easily gone in box 3 if the line turned upward.
The sheer joy on Simon's face whenever he clears some fog is a joy in life that I will always enjoy :)
Simon’s soft voice takes on an even more hushed tone when he tells us about the ”secret”.
Love it!
What I love about this puzzle is that the start and end of this puzzle are both in box 1. We have break-in on the Whisper line, and also resolve the deadly pattern by the Whisper line, which is like a complete story line.
What amazes me is that Simon is able to squeeze so much information out of next to nothing.
So true, yet he consistently misses the 'bleeding' obvious. I find his mind fascinating.
That’s why I prefer watching Simon because he gives the perfect hints on accident with what I am missing from a solve that keeps it fun. When I watch Mark every time I’m stuck there are no subtle hints it usually just breaks the puzzle wide open for me lol
And tries to imagine a spider out of a line that could never branch and therefore could have at most two legs.
And why use random colours for lines (which are already marked in grey) - I used standard pink, blue or green once I'd deciphered each one.
Why couldn't the Renban line continue down in the box 6 in the fog at 48:52?
I think he just missed it, but a possible path to solve it that I found is this: if you would first look at the "spider" line in boxes 8 and 9 at that moment, you could see that it isn't a region sum line because the segments in box 8 are different (8 and 9), and it cannot be a renben because it cannot contain a 7 but has an 89 pair. That means it's a German Whisper, and if you look at the high-low alternating digits, R8C7 has to be low but cannot be 1, 2, or 3, placing a 4 there (and thereby solves a lot more 7s, 8s, and 9s in the bottom three rows by placing the two 9s consecutive to the 4 on the line) but it also places the 4 in box 6 as it cannot be in column 9 because of the 34 pair in box 3 and now it has to go in the middle of it, revealing the rest of the box and that the renben line ends there :)
Simon accidentally guessed right
Or even go up? I was stuck at this point, because the renban easily could take a 3 from box 3.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
Agreed. This is where I got stuck. but if you solve box 9, it opens up box 6.
I would love a tear-off calendar with random quotes of simon without context. Like ''its more extreme on the green side of five', 'Now I don't know whether it goes this way or that way, it depends whether or not blue and orange are the same colour.' or in this video 'nine, eight, nine, nine, eight, BINGO!'. (that's not how bingo works)
😂
I do enjoy Simon’s color references that make no sense without the game context, but are perfectly logical.
I would pay for that - not kidding!
My first attempt at a non GAS puzzle and managed to succeed (without fog cheating, of course!) after 79 minutes. A long time I know but I'm so chuffed. Thank you to Mark and Simon for the content and of course the brilliant construction!
If that's your first non-GAS puzzle, 79 mins is more than decent, congrats! :)
@@andrzejzurawski4895 Thank you!
That is brilliant on a puzzle of this difficulty, congrats.
@@stephenbeck7222 wow, thanks!
My goodness!! I've been watching these nonstop! But today, I'm watching it before bed. I love the fog of war puzzles.
I'm finally starting to catch onto things a little quicker. It's been bringing me a lot of joy in an otherwise rough patch of life. Thank you :)
19:00 Just a small difference but I deduced that box 4 couldn’t be a whisper line because there’s nowhere to place a 6 next to a 1 :)
I wish Simon had used the established colors for the lines. A blue whispers, purple equal sum and green renban was confusing.
First he doesn’t use green for hedges and now this! 😵💫
@@matt5075 😀😀
This is final proof he does it on purpose. Simon is such a troll!
I totally looked up which color was which because I couldn't remember, and I was doing it just for myself!
@@Unchained_Alice My thought was he's the classic addlepated genius.
"Oh, looks like we've got an S there, or it could be......a bigger S." I do love Simon's stream-of-consciousness sentences.
Simon,
Your many secrets of Whispers are true
And the given digit rules out a two
They don't contain five
Every other is high
But, Simon, tell me! Why is it blue?
I know, right. I coloured my lines green/blue/pink for whisper/sum/renban, as per the sacred orthodoxy. In cases where I'd narrowed it down to one of two types, I coloured each half in a different colour to remember the options.
At 42:37, you can deduce that the RSL in box 5 has to sum to 11 or 15. It can't be 8,3 or that would break the dot, so there must be a 7 on it - which solves the dot.
And note that there can't be a 1 on the same RSL, so 1 can be placed in box 5.
I think it's called Ancient Artifacts because you're meant to think of the fog as earth that you're digging through in order to uncover all these strange objects. You don't know what they are at first until you learn more about the context of the location in which they are found, just as is frequently the case with archeology.
A wonderful puzzle. One of my favorites that Simon has done in recent memory.
that or it is because you go back to the start ant the end
48:49 You don't know that the renban line doesn't continue into the rest of box 6. You need to look at box 9 first to solve this logically, or use uniqueness in box 1.
it also can continue in box 3 - providing 3 or 4.
Which is funny because at 48:19, he said to be careful about where the line ends.
And then moments later, he contradicted himself.
That three in box 6 was a logical leap. The line could have extended further into the fog.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
Exactly. Row 3 column 9 could have been the 3, making row 6 column 7 a 1 or an 8. More work needed to be done to conclude it was a 3.
I had in mind that box 6 could be entirely filled by a spiralling Renban apart from the one cell that was taken by the line from box 3...
I'm so happy I didn't let the length of the video discourage me from trying this one because I really love those fog sudoku puzzles. Finished in 23:37 minutes .It went so smoothly and was so enjoyable 😊
The definition of the Renbans line isn't really clear. Nowhere in the definition does it state that the set of numbers forming a Renbans line must be capable of forming a consecutive sequence.
Renbans are an "established" Sudoku variant term. The rules could have just said Renban lines and Simon would know what it meant.
@@seinfan9 But then why does the line go 1-2-3-4-5-7 in box 5 and 8, I don't get it.
@48:50 placing the 3 is not a logical deduction since the line could theoretically fill out the rest of box 6 and a 3 could be placed in r6c8. I am stuck at this point in the puzzle. Does anybody know how to logically proceed?
You are supposed to approach the whisper in b9, which you know has a 123 in r7c789 and a 4 in r8c789. At this point, you can rule out a region-sum line because 8 does not equal 9 and a renban because you can tell the line going into r8c8 must be 5 long and 9 and 3 would need size 7 to make a renban work. This allows you to place a 4 in r8c7, which locks down the 4 in b6. And this reveals the size of the b6 line.
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
the deduction at 35:55 was really cool. I totally missed that and it took for forever working out what the numbers could be with the dot in the center box.
That was the one step that escaped me too. I reached that point and could get no further. I had to watch Simon. Then smacked my forehead, as it seems so obvious once it's pointed out.
Ditto!
48:55 That was incorrect since 3 could also go in r3 c9 if that remban continued up..
love these puzzles that make you figure out the nature of the lines!!
This puzzle was such a great mystery.
It'll go down in CTC history.
I applied all my brain,
Did the work with great strain,
And now both my lobes are all blistery.
48:45 Correct me if I'm wrong but that renban could still go all the way to the top-right corner and thus go from 1-9, no?
If he had solved the box 9 line first, he would have placed a 4 in r8c7, and then 4 would have been placed in box 6 by sudoku, clearing the fog and revealing that r4c9 was in fact the end of that line.
Simon did the b6 line a bit too soon. He should have had to tackle the b9 line before he knew enough about the b6 line to know the positions of the 345, given the b6 line still could have grown when he placed the 345.
Thanks for helping with the solve. I got stuck a bit past midway through, but seeing you work out something helped me finish off the rest.
I don't get putting the 3 in box 6 at 48:58 The fog still hid the end of the line and if the line went up into box 3 it could have potentially pulled a 3 from there. I was able to complete row 8 first (easy once you realize it's a whispers line), which led me to figure out that 4 had to go in the middle of box 6, and then I could see the end of the line and place that 3.
This was my first go at a Fog Of War puzzle and I loved it. Also, I enjoyed it so much I then came back to watch Simon’s solve to see where my logic matched with his… very lovely puzzle.
A bit of luck with the 5 in box 2 at 46:11? It didn't have to go on the top, right?
I came on here to see if anyone else thought that. It could have still gone in box 7 at that point from the 15 pair in R8C5? Unless I missed something.
It was a 59 pair, and he got to know that the 9 had to be in the 89 pair below. So the R1C5 had become a naked single.
@@boivie Ah! Yes, of course! Thanks!
@@boiviebut it wasn't a 59 pair, 8 was still a candidate on that dot, on both sides of the dot.
@@corozal987 It was an 89 pair so 9 cant be in R1C5 leaving only 5. He did not say it like that thou.
I enjoyed both solving and watching this one! Thanks.
It's only fitting that the last digit in the fog of its own is the 3 in the corner. Very nice puzzle. It's probably called Ancient Artifacts because you uncover the lines and dots but then you also have to study them to find out what they are - like archeology, finding, cleaning and identifying ancient artifacts.
I would really not mind if ctc posted a fog puzzle everyday , they are super fun to solve and this one was very fun to find what which line represented .
@ 48:51 that logic seems faulty if the line extends into box 3. I think he said just a second earlier to be careful about this lol
Love this puzzle. To keep things organized, I made all my lines grey until I knew what they were and then used the standard green, blue, and purple colors for whispers, sum, and reban lines respectively. That way I could keep straight what line was what instead of them all being different colors
Even if I did not like the concept of Fog of War puzzles, I would still be happy to see one come up on the channel because you enjoy them so much, Simon! You absolutely chortle with delight - makes everything even more fun!
48:44 Simon you assume the purple line do not extend, it might extend to r3c9 , it is true to say the line must include 3,4,5 but I is not necessarily be the cells you put it. Just a minor point a really good solve anyway❤️
Rules: 02:22
Let's Get Cracking: 07:35
Simon's time: 45m18s
Puzzle Solved: 52:53
What about this video's Top Tier Simarkisms?!
The Secret: 7x (09:03, 09:22, 09:25, 20:04, 20:06, 20:18, 20:21)
Three In the Corner: 4x (32:14, 51:23, 51:31, 52:35)
Maverick: 2x (14:33, 14:33)
Schrödinger Cell: 1x (29:49)
And how about this video's Simarkisms?!
Ah: 21x (00:32, 05:00, 14:04, 14:09, 24:13, 28:42, 29:03, 32:05, 32:51, 34:20, 34:43, 37:54, 39:30, 41:21, 41:27, 41:41, 47:20, 47:23, 48:56, 51:14, 52:03)
Hang On: 11x (05:00, 07:08, 13:19, 18:38, 22:20, 26:08, 29:55, 38:30, 41:09, 43:48, 47:08)
By Sudoku: 10x (17:01, 22:36, 25:09, 25:51, 27:43, 41:14, 41:32, 45:38, 48:01, 49:30)
Sorry: 7x (12:14, 24:16, 33:05, 33:08, 38:33, 46:28, 47:29)
Lovely: 6x (15:55, 31:37, 34:43, 37:54, 48:56, 53:19)
Beautiful: 6x (08:34, 23:15, 32:58, 34:43, 36:30, 53:08)
In Fact: 5x (03:19, 22:23, 27:43, 48:50, 49:48)
Clever: 4x (24:08, 24:11, 24:42, 52:55)
Nature: 4x (26:01, 33:39, 48:50, 50:10)
That's Huge: 3x (30:00, 32:10, 51:00)
Obviously: 2x (10:48, 44:55)
Wow: 2x (37:05, 43:28)
Pencil Mark/mark: 2x (22:48, 28:27)
Naked Single: 1x (21:47)
Recalcitrant: 1x (47:53)
Naughty: 1x (01:40)
Bingo: 1x (52:48)
In the Spotlight: 1x (52:38)
I Have no Clue: 1x (00:43)
Surely: 1x (18:20)
We Can Do Better Than That: 1x (30:30)
Wrogn: 1x (12:43)
Let's Take Stock: 1x (25:31)
Most popular number(>9), digit and colour this video:
Ten (10 mentions)
Two (106 mentions)
Red (7 mentions)
Antithesis Battles:
High (11) - Low (6)
Even (8) - Odd (0)
Black (3) - White (1)
Row (12) - Column (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!
Wow
I wanted those informations
bloated comment. not everything is a “simarkism”. like how you gonna count “surely”
ngl before i saw the FAQ i thought a person (not a programme) did this and i was immediately intimidated
edit: how does the robot tell the difference between "two" and "to" and "too"?
@@fulltimeslackerii8229 Absolutely, and what about Ah !?!
This looked like such a fun puzzle! Even from the first point I new exactly the first step and that just has to be from watching this channel the last week since finding it, I am starting to really understand the logic behind these puzzles.
Took me 36 minutes to do this one. Scojo is welcome back any time, what a great puzzle.
I’m somewhat of a straggler to these videos, and I miss quite a few. So I’d never heard of these special types of lines, but it was super satisfying figuring out on my own the logic of the different types. Thanks for a great puzzle!
I saw the thumbnail and took a try for myself first, fog of war puzzles tend to have a singular line of logic based on what's revealed, so I felt confident it was an approachable one that I could maybe figure out! Ended up correct, 39:34 for me, and it felt like I had to pull out every trick Simon has taught me about each of these lines! It felt very gratifying that there was almost always a fog reveal after making logic connections, as though the puzzle were congratulating me for each segment.
That was a fun puzzle! I usually don't like "figure out the rules"-style puzzles (I don't know if there's a more formal term for these) but this one felt reasonably approachable (while still being challenging enough to be enjoyable). I'm proud to say I didn't make the same logical error on Box 6 that Simon did! Finished in 39:28, thanks for the puzzle!
58:20 - Another fantastic puzzle - Thanks Scojo - really enjoyed that.
@48:50 I think Simon had a leap of logic that was not founded. Please correct me if I'm wrong. Why couldn't the renban line in box 6 continue to fill the rest of the box? Then it could be a 9-cell renban and the 3 could be in the bottom center position in the box rather than the lower corner.
Oops, just read the setter's post where he points that out!
You didn't give the line types their usual colors :(
Only the second time I've beaten Simon's; solve time - only by two minutes but feeling delighted with myself. Very fun puzzle.
As always the fog puzzles are always fun. took me 58 minutes. Great puzzle.
Here's a low bar. 2 hours, I did make a cup of tea and was running a meeting for half the solve but even so, I got badly confused on the box-5 renban... Oh, and I didn't read the rules so thought I broke everything, when r3c8 didn't have valid digit. Rather than read the rules I back-tracked and wasted so much time looking for my mistake that I hadn't made. Still so enjoyable; these fog of war puzzles are a blast.
That was a lovely smooth ride, thanks. I think r7c5 was my favourite bit.
I notice you haven't streamed any puzzle games in a while, but if you do ever take it up again, may I suggest Patrick's Parabox.
It's a well paced block pushing puzzle game, and gets to play around with recursion in some very interesting ways.
Finished in 35 minutes of sheer delight 😍 with only a couple of accidental cheats and one lucky escape ... because the grey kropki on the edge of fog look just like white kropki that are partially fogged over, I kept forgetting that they could be black kropki in disguise.
18:20 ... Here we have a line that can't possibly be a Renban, so *of course* Simon draws it in with the colour that we use for Renban lines, because why wouldn't you? Never change, Simon 🤣
Also impressed with Simon's determination to leave 7s pencilled onto a 1-2-3-4-5-6 Renban!
This one took a while but I got there. Love fog puzzles. This one was tough but even us amateurs can get through it with perseverance. Great puzzle.
At 35:58 he concludes that the 4 must be in the cell but why cant the four be on the black line (other 5 cells in the box)? Additionally the "Renban" explanation does not contain the word "consecutive" so this becomes magic to the uninitiated.
The general renban rule did mentioned consecutive digits are required. So the rule here is not clear enough.
31:32 for me, my favorite deduction actually happened at the part that Simon did wrong, where questioning whether R9C6 in box 9 is on the line lets you place a 5
87:00 for me. Really great fun eliminating the different line types. Got a bit stuck in the top right and bottom middle, but slogged my way through.
48:09 definitely feel like fog is one of my favorite rulesets. I really liked the deduction about the 4 in box 8!
48:52 could it not continue into a 9 line? allowing the 3 to go somewhere else?
That is an absolutely lovely puzzle 🤩👏🏻👏🏻👏🏻
Took me only a little bit longer than Simon 😉👍🏻
The way to figure out the lines is brilliant and we have a 3 in the corner 🎉
Just revisiting what is possibly one of my all-time favourite sudoku puzzles… I think that box 8 is a big key to this puzzle - the given 2 in box 1 is incredibly powerful for beginning the puzzle but, once begun, you can do lots in boxes 1,2,3,4,7… but then you hit a bump - once you start to break into box 8, everything else pretty much falls into place.
Wonderful puzzle! Hope there's more like this one.
Really liked this puzzle. Well done original creator!
It took me quite a long time, but I really enjoyed it. Great and exciting puzzle.
First attempt at a fog of war puzzle. Loved it, although I got stuck for a while in box 5 - just didn't see the 3,4,5,6 possibility on the renban line for the longest time.
@21:00 This was made far more complicated than necessary. Don't need to know "the secret". Just that the total for the box is the same.
So the non-line cells add up to the same.
Box 4 is max 10
Box 2 is min 10
So they're both 10.
Watching the video, I remember having a different path for box 5 and 8.
Something about the position of 3 in box 5, and the region sum.
if R6C5 was a 3, that would force 7 on the line in box 8, and the sum there would be 15, and you'd need R6C4 to be 12 and that's not a sudoku digit. Forcing R5C6 to be a 3.
Getting box5's 2 from the 3, (not 3 from 2)
I was hung up a bit by box 6 (c49 minutes) where I noticed the line could extend to eight cells in the box and.a 9-cell Renban tells me nothing, so I had to analyse the line in box 9. I also spent too long on the box 58 S line before it was properly resolved.
Solved it in 4 hours . Mind blowing puzzle !!
@Simon , how did you place the 3 in box 6 at 48:48 ? Can't the Renban grow into other boxes ?
This was a delight to watch from start to finish
This puzzle is definitely in my top 3 puzzle ideas list
It took me two and a half hours, but somehow I managed to solve it. I had an absolute blast, fog sudokus are my favorite type of sudoku!
First fog puzzle I've ever solved, in a little under an hour. Thought I'd blown it at one point before re-reading the rules and noticing that a dot was (in Kropski terms) either white or black. A very nice workout.
26:31, I kept forgetting the dots were gray, not white. I made that mistake once and I think I got lucky a couple other times. I also messed up the 6 and 7 in Box 1 right at the start, forgetting r3c1 could be a 6 and the grid didn't clear, showing me my mistake.
Edit: looking at the comments, I may have made an assumption in Box 6, too.
Interesting puzzle! I got this in 41:55, and was solver number 2258. I decided to color the lines as I deduced their meanings, using the standard colors, green for German whispers, blue for equal sum, and purple for renban.
Way too logical!
20:05 you can simply say that the minimum sum in box 4 equals the maximum sum in box 2
Splendid puzzle! Loved every minute!!
🎉🎉 I am so proud! I did it, and in the same time as Simon. 43:49
Happy Dance and a piece of chokolade 💃🕺
Thank you Simon for Always being an inspiration 🙏
When I cleared the fog it sprayed confetti and it scared the crap out of me. I love this one.
Scojo is a genius!
I'd like to see video-games back, I had so much fun watching the series from the witness to taiji, specially baba is you. Perhaps I'm 4 months late, but I can't understand why it stopped.
Please play more video games, and sorry for posting this on an unrelated video.
i'm not sur but he says that renbans have to be consecutive 40:45 for exemple but it's notified renbans are "sequence of non repeating digits" that mean can be 1,3,5,7,9 for exemple do i'm wrong ?
He general renban did mentioned has to be consecutive. So the rule here is not clear enough
I especially enjoyed this solve due to the consistent difficulty. Each new digit was easy enough to find and the puzzle kept guiding you as opposed to 25 to 30 minutes to get 2 or 3 digits, then solving the rest of the puzzle in a handful of minutes.
Was that logic at 46:13 sound? How could that deduction remove the 5 in R3C4?
By sudoku, or else you would have two 5’s in a square 🙃
This was challenging, but fun. I was delighted when I realized it was all the way back to box 1 for the disambiguation of the 8's and 9's!
That was a nice puzzle and an easy to follow logical solve.
37:40...that was lovely, really enjoyed it!
That was fun! 30:11 for me. I really like the fog of war puzzles. Thanks Simon!
I finished in 19:02! Really fun puzzle with lots of cool moments. I especially enjoyed a certain moment in box 3 during the solve!
11:32 The colouring might have given away the way of a line... And I'm not sure if it's by design (Sven's design, I mean) or by accident, as neither of the two ends of that line are outside the fog.
26:56...but cannot count it. I inadvertently swapped the 6 and 7 in box 1, not realizing that the 6 didn't have to start that line. Because of that when I got the 4 in box 3 which happened to be correct and released the fog, but then led me to not be able to distinguish the 16 and 25 in box 3. Then I noticed that the 7 could be the 6. And it resolved my issue. It appears that the distinction between the 6 and 7 made no impact on the rest of the solves up to that point, because pencilnarking them 67 appears to not take away from my other marks/solves, however, I cannot be certain. Although now typing this, maybe I will take it since the 56789 in box 2 hadn't been resolved so that had no impact and since the 67 error was in column 1 it could not have impacted boxes 4 and 7 whatsoever. What do yall think?
01:24:47 - 87% slower which is faster than my normal 100-200% range, I lost a lot of time because I was coloring high and low digits across the entire puzzle more or less out of OCD at some point. I enjoyed the puzzle.
Simon makes me laugh sometimes. :) At 18:15, he considers whether the line in box 4 can be a whisper. He looks at the convoluted way that 4-9 doesn't work, when the 6-1 option was trivially broken.
Excited to get this with no guesses in 34, then watched Simon show that I'd missed some logic that would have kept things ambiguous for a bit longer. So no unlucky guesses? Still a quite fun puzzle.
44:51! A very smooth solve. Excellently set puzzle :)
This is the first time I saw Simon make a logic slip....my world is shook. What if nothing is real and everything is falling apart!!!
You should watch more, he does it all the time
@@adrianhead6272 I don't believe you! I've watched tonnes and tonnes and I've never seen it before!....though thinking about it, maybe I just make the same mistakes and so I don't realise it....ARGH
@48:40, you've got a bad leap in logic that happens to land you on your feet. Because the line is still in fog, even if you know that it's renban, you don't know where on the renban the 345 needed to connect the 2 and 7 have to go. They could hid in the fog, so before you can logically place them in the three visible cells, you need to deduce enough of the puzzle to reveal that there aren't any renban cells hidding in the fog that could smuggle away the 345.
To do that, you need to focus on 'the spider' line. Realizing that the spider must be a whisper-line moves you through a series of deductions which eventually get you the two in column 9 you need to disambiguate the 26 pair on the renban, which at last reveals that the line terminates. From that new information it follows that you need a 345 on the line to connect the two and seven and they must be exactly in the three spaces available on the line.
It's a good pzzle you just got to take a lucky short cut in your solve.
Really enjoyed this one!