Is This Sudoku Expert Trolling Us?!
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- čas přidán 17. 02. 2023
- A quick recommendation before we get on to today's sudoku. Two day's ago we featured a puzzle - Madrigal by Fafrd - that's proving incredibly popular. We described it (with good reason) as The Greatest Discovery In Sudoku History so do check it out!
• The Greatest Discovery...
** TODAY'S PUZZLE **
One of our favourite constructors returns to the channel today with what must surely be a tongue-in-cheek sudoku?! It's called XY Difference Sudoku and, as some of you will know, such puzzles have grids which are typically populated by diamonds. Here we have no such help - no diamonds - in fact it is only the absence of diamonds that will help you solve this!!
There's a little bonus music at the end of today's video too.
Play the puzzle at the link below:
app.crackingthecryptic.com/su...
Rules:
Normal sudoku rules apply. If there's a diamond between two horizontally adjacent cells, then the absolute value of their difference is the same as the first digit in that row. If there's a diamond between two vertically adjacent cells then the absolute value of their difference is the same as the first digit in that column. All possible diamonds are given. (Note that because there are no diamonds shown in this puzzle, there are no adjacent pairs whose difference equals the first digit in their row/column).
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** NEW CONTENT ON PATREON **
As well as the Phistomefel and Jay Dyer extravaganzas, Simon's solve of Magnus Josefsson's 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...
logic-masters.de/Raetselporta...
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** NEW GAS PACK IS OUT **
The new GAS pack is out on Steam for PC here:
store.steampowered.com/app/21...
It's already out on Android and App Store. 60 original puzzles by Sam Cappleman-Lynes, Clover and Philip Newman!! Earn party hats and dinosaurs with these brand new puzzles!
We've also released a FREE app full of handmade puzzles to celebrate reaching 500k subscribers - simply download the Cracking The Cryptic app on Android, Steam or App Store and then select the 500k pack. We're streaming a playthrough of this app and you can watch all seven episodes
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▶ SUDOKU PAD - Use Our Software For Your Puzzles ◀
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Thank you for making my puzzle into such a fun video! It's always great to make someone laugh with a puzzle, and doubly so when it's Simon :)
Thank you for this Clover. I love that not only is this trolling because there are no positive diamonds but the 3,6,9 and that the 6,4 are split makes the second square almost useless. Such a neat looking puzzle too.
Wonderful puzzle as always. At the start I started trying different combinations in box 1 but having previously watched your video on how to set a sudoku I realised this wasn't your intention and soon spotted what was intended.
What a superb and elegant design!
_No_ other constructor has the ability to lead the solver so effortlessly through a puzzle as Clover!!!!
I did the puzzle, enjoyed it very much, as I always do your puzzles, Clover. Thank you!!
Simon always makes me laugh. He knows the difference between 5 and 3 is 2, but fails to see that it is also the same between 5 and 7! Then goes on to work it out by sudoku...
That was peak Simon. He also had a 7 pencil mark looking down at the square and didn't use that either.
@@nsigfusson Yeah, there were two ways to do it, and he found a third.
Things like this that really makes me wonder how that genius brain works. Why keep things simple when you can do it the hard way? :)
Crazy that he used sudoku in a sudoku puzzle. He tends to avoid it like the plague.
I'm glad I'm not crazy. At least 2/3 of the time that I think I spot something that Simon hasn't, I'm wrong and I've broken one of the rules of the puzzle. He literally had me triple check that the difference between 7 and 5 was 2. Fortunately I was at least confident enough not to pull out a calculator lol
I've just noticed that the rules could also be put like this: "Normal sudoku rules apply. If there's a monkey playing the maracas between two horizontally adjacent cells, then the absolute value of their difference is the same as the first digit in that row. If there's a monkey playing the maracas between two vertically adjacent cells then the absolute value of their difference is the same as the first digit in that column. All possible monkeys playing the maracas are given. (Note that because there are no monkeys playing the maracas in this puzzle, there are no adjacent pairs whose difference equals the first digit in their row/column)."
I would like to see a sudoku with monkeys playing the maracas
@@bruresende cue renbans german whispers and equal sum lines
@@bruresende Nah, they'd just come up with the works of Shakespeare 🤪
@@bruresende ditto!😁
@@daveturner5305 😂
20:30 Simon spotting the sudoku solution before the much easier "7 can't go next to 5 because of the XY rule" must be a first
Simon has a lovely habit of finding a long route where a shorter one exists, but this was a very funny🤦♂️one indeed 🤣
Even that was long-winded given the pencil-marked 7s in box 2!
Thank you Clover for making Simon do Sudoku, even if he goes about it in the most bonkers way!
I love seeing both Simon and Mark solve the same puzzle because they have very different ways of working through a puzzle.
This is my favorite type of CTC video. Elegant logic that I actually have a shot at success on my own. Clover puzzles are such a delight.
Clover is exceptional!! Great to see you feature this beauty from her!!
Such an elegant break-in. This is just lovely setting by Clover - not fiendishly difficult, but surprising and rewarding.
I just knew this was gonna be a phenomenal puzzle when I saw clover! in the thumbnail, and I was not disappointed. Once again a tremendous joy to solve and then watch Simon solve. Thank you for your awesome puzzles clover! !
Yesterday, i had a really dreadful stressful day, most of my thoughts were silly and insane but yesterday has gone away.
Now today, cracking the cryptic has made my day, all the time i was led astray, all of my feelings are now so clear.
Another day, all of a sudden things made me say oh dear,, to my heart and soul the freedom screamed. I wanna see more sudoku streams.
Love this channel simon played the great guitar, and, then, mark solves GAS at 11p.m.
Sorry you had a dreadful day yesterday chip and so glad today was better for you due to CTC !! 😃
@@davidrattner9 😃
🤣🤣🤣🤣🤣 mark actually released a GAS video, there was no way of knowing.
I like to imagine new viewers' bafflement when Simon says "So if we put 4 in the corner - not 3 in the corner, but 4 in the corner..."
22:45, holy cow I love a negative constraint puzzle, that was so cool
12:24 for me which is a bit of a shock. Some mornings the numbers just seem to fit. I admit to too much pencil marking at the beginning though before spotting where 4 couldn't go in box 1 which wasn't difficult logic so I'm kicking myself for not looking at it first instead of marking most of row and column 1. Absolutely lovely how column 1 falls into place after box 1. That was a very enjoyable surprise.
Eee, Clover you are most marvellous. Thank you for giving us all these square treats.
Loved how there was an easy finish, but you felt like showing off...
Never change!!
Awesome puzzle .... but at about 21:30 mins i screamed so hard at my screen " MIDDLE BOX - SUDOKU 3!!!" 🤣🤣🤣 and 8 minutes later you finally opened the 3 in the middle-box... that was the most satisfying moment in my life i think 😄
Clover is such a clear constructor -- I love her puzzles!
It's so much fun to troll Simon, because he just laughs, and gets on with the job.
Absolutely ❤️ this puzzle!!! Also ❤️❤️❤️ the guitar outro of Yesterday and Simon’s sensitive expressions! Paul McCartney is one of my all time favorites!!
Beetles songs, especially McCartney, are a treasure to be hold. When Simon gets a hold of them, become magical and priceless.
@@davidrattner9 well said, my friend!
Yay! 33:58 for me. This puzzle's elegance is balm to a number theorist's wounds. I thought I had to juggle permutations and exclude low digits from column and row heads, depending on the avoidability of small differences but the actual solve path was almost entirely linear. Loved it! Now over to Simon. He will have to do a fair amount of scanning, I am afraid.
I loved Simon's reaction to this puzzle. I also loved the puzzle - negative constraints are my favourite. And of course I always love a puzzle by Clover. ♥🍀
At the very end of the puzzle, I couldn't help but chuckle at Simons complete disregard for the 24 pair is box 6, thereby making the only other cell in the box a seven.He proceeds to prove what is already proven by sudoku by using the variant constraint of the puzzle...The man is brilliant, but he is always looking for the most abstract things instead of the concrete 😂
I love this puzzle! I thought it would be monstrously hard but actually it's very approachable. Loving every moment of solving this
20:00 7 can't be next to a 5! Classic Simon taking the less obvious route 😅
Classic Clover!
Loved how the first column and row build up, plus negative constraints are always fun
Spent 3 hours on this puzzle on and off and this is such a treat, the rule set is so great and the puzzle is approachable yet challenging, this is my favorite puzzle from cracking the cryptic
This puzzle was lovely, I felt like I was gently guided around a garden full of beautiful logic flowers
Really nice to have a puzzle with a "pure" negative constraint like this (I know there are anti-knight and non-consecutive and other standard things). But negative constraints can sound a bit daunting - think it hit a sweet spot for potentially encouraging people to have a bit of a go ... and just a lovely puzzle based on a cool idea.
Negative constraints are my favourite!
19:56 Usually Simon picks more complicated variant rules logic over simpler sudoku, in this rare case he picked more complicated sudoku over the simpler variant rules logic (r6c5 can't be 7 either, as that also sees 5 at a difference of 2)
Came here for that same comment. Can math the 3 out, but not 7.
It's crazy how Simon's brain work. He sees 5 + 2 = 7 but not 7 - 2 = 5, nor does he sees the 7 pencil marked in box 2. He simply prefers to find it in the most convoluted way possible.
It's called engagement farming. Leave obvious clues open for a while to get people to write comments about it. More comments means higher priority in the algorythm.
LOL Just made a similar comment before seeing yours.
This is the first non-GAS sudoku on the channel I was able to solve by myself! Thanks for sharing :D
Thank you so much for the birthday wish Simon, it made my day!
Happy Birthday 🎂🎉🎂🎉🎂
🎵🎶Happy Birthday tooooo youuu 🎶🎵
Rules: 07:02
Let's Get Cracking: 08:20
Simon's time: 24m07s
Puzzle Solved: 32:27
What about this video's Top Tier Simarkisms?!
Three In the Corner: 5x (11:26, 15:50, 16:00, 16:02, 16:18)
Bobbins: 2x (17:25, 26:11)
And how about this video's Simarkisms?!
By Sudoku: 9x (10:52, 15:36, 27:17, 27:30, 28:46, 30:36, 30:58, 31:20, 31:33)
Ah: 6x (12:23, 16:38, 24:55, 24:55, 28:56, 31:36)
Pencil Mark/mark: 6x (25:05, 25:40, 25:44, 27:21, 27:24, 31:03)
Obviously: 5x (02:39, 18:40, 18:56, 28:32, 31:03)
First Digit: 4x (01:06, 01:25, 07:17, 07:30)
Lovely: 3x (03:48, 04:59, 17:05)
Beautiful: 3x (11:09, 11:09, 12:50)
Hang On: 3x (14:44, 28:40, 30:48)
In Fact: 3x (08:07, 12:39, 15:57)
Sorry: 2x (04:24, 28:44)
Apologies: 2x (01:54, 02:54)
Stuck: 2x (06:00, 20:47)
Wow: 2x (12:50, 23:11)
That's Huge: 2x (25:36, 26:28)
Useless: 1x (26:11)
Goodness: 1x (14:01)
Naked Single: 1x (31:17)
The Answer is: 1x (25:13)
Nonsense: 1x (31:07)
Clever: 1x (12:26)
In the Spotlight: 1x (16:22)
Brilliant: 1x (04:20)
Elegant: 1x (17:18)
Flurry of Activity: 1x (29:22)
Cake!: 1x (03:56)
Unique: 1x (17:09)
Serendipitous: 1x (04:18)
Symmetry: 1x (08:20)
Most popular number(>9), digit and colour this video:
Ten (2 mentions)
One (69 mentions)
Red (2 mentions)
Antithesis Battles:
Even (5) - Odd (0)
Column (27) - Row (10)
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!
clover! strikes again with her incredibly elegant and clever setting!! I love the whole concept of this, a diamondless, negatively constrained XY Differences sudoku! The sheer flow of this thing!! Well set and well solved!
EDIT: nice musical outro!!
This was a fun puzzle! The Great Lady Clover 🍀 love it. Also, loved the outro...one of my favorite songs 😃
20:20 also a 7 can't be next to a 5 in row 6. as usual, Simon uses the more complex deduction instead of the one that's staring him in the face! :)
I have now yelled “where does 3 go in column 4” at my phone for 5 minutes. 😂
I love these videos. They absolutely are one of the best parts of my day. Brilliant construction and fun solve!
Literally the instant after I commented, I unpaused the video and Simon posed that exact question. Love it.
There is an elegant logic in box 6 which Simon skipped. For example in row 4 of this box there is a 158 pair and "forbidden" difference 7. It sais that 1 and 8 can not be neighbours and 5 must go to the middle. Similarry in row 5 of box 6 there is a tripple 247 with "forrbidden" difference 5.
Yup... and also 245 pair in row1 of box3, 2 must go to middle to avoid diff of 1
I got that one - I remembered Mark talking about "chaperones" from a different rule set (probably a negative constraint on kropki or similar) and spotted it from there.
„Yesterday” - is the record keeper in number of interpretations, and nevertheless I ❤️ everyone, just as much as your YT channel.
I can't help but feel that Simon solved this sudoku like a crossworder. Start at the top left and then follow what connects with what you figure out on the way down and over 😄 Very fun puzzle. Thank you!
Anytime you do a Clover puzzle I know that we all - you and all of us - will have a lot of fun and be treated to some genius and beautiful logic. She is amazing, isn't she? This was a great video, Simon, entertaining, lovely solution, you had fun, and a guitar outro (that I actually recognized - that is all on me, as I am usually so out of touch with almost all popular culture ...) Thank you for all that you do to ensure that we get two sudoku videos per day no matter what technical difficulties come along! 😉
I really like this ruleset. I think that was the most fun I've had solving a puzzle featured on this channel.
I love sudoku by Clover - She is my favourite setter - got this one same as Simon by starting top left corner as usual -- Luv you Clover
I really enjoy your videos, this was the first variant i solved without having first seen your solution. Keep up the good work!
I didn't think I'd have been able to do this but I wish I'd tried now. It looks fun and very approachable. I need more confidence in myself since I've solved many of the more approachable ones now. Though of course Simon often makes it look easy
He certainly does!
My general rule is to at least attempt any video that's under or around 35 minutes because they're usually pretty approachable
23:57 for me. My first step was to fully pencil-mark all cells in r1 and c1 then pick away at candidates one by one. Similar to how both Mark and I tackle Thermo Sudokus.
Wonderful puzzle! I'm glad Simon understood the rules.
That was a delightful puzzle to complete. Thanks Clover.
Is Baba is you stream ever making a comeback? Been over a year now since the last stream and I found those really entertaining
Solved this one on the discord shortly after it came out. Such a fantastic puzzle! Solved it in 17:20, which I think was definitely aided by having my brain filled with XY difference puzzles from this month's hunt!
i usually don’t watch classic sudoku but for clover i’ll make an exception
What a cool puzzle! Clever Clover
29:08 for me, with a bit of pausing to go exclaim at Clover in the discord channel about how delighted I was by this puzzle. That was really excellent indeed.
What a brilliant puzzle! I haven't done these for a while because I'm slow but I wouldn't miss an opportunity to join Simon in solving a Clover puzzle in half an hour. That was 86 minutes very well spent!
9:23 for me. with a lot of doubt in myself. i was second-guessing every decision.
I can't help but picture Clover's face while coming up with the idea for this ruleset like the Grinch slowly contorting into a devious smile.
that ruleset was much longer than it needed to be
Simon has such a calm even voice. Focusing on the logic he explains in the puzzles makes all the other noise in my head go away so I can sleep.
I catch up on anything I missed in the morning. Simon's enthusiasm for puzzles is just too good to miss out on.
Amen! Simon’s enthusiasm is a huge part of why I follow this channel daily! Simon has turned my frown upside down on many occasions 🙃
What a beautiful new idea by Clover, but yet it yields quite an approachable puzzle...! 13:38 for me :-)
20:16 for me. That was mind-bending... and I'm surprised I even made it through the solve, as my last few attempts at doing an XY difference puzzles failed miserably.😄 But once I figured out the break-in in the first few minutes, it flowed quite nicely! Props to Clover for this puzzle.
That was a neat puzzle. Did it in 27mins. All through the beginning I was thinking I wouldn't be able to, how could this possibly go somewhere but yet it always found a corner. Lovely variant with the negative constraint.
18:18 1 can be placed in the center cell of the grid very early, through what looks like intended logic, with the column-1 digits all one apart from the rightmost digits across columns 3 and 4. Also gives the 9 in box-5.
Lock down was something like 4 years ago, so that is 8 years of daily puzzles, impressive work guys!
Lovely puzzle and solve!
58:33 for me
Edit: Thank you so much for your beautiful rendition of Yesterday as well. I love the song and it was actually one of my solos in my college choir. Brings back good memories.
This is the second puzzle I've seen where something is defined but absent. I needed a few hints from the video to solve it.
Had to facepalm 20 minutes in when Simon forgot that 7 - 5 = 2 thus resolving the location of 7 in r6 without having to do sudoku.
19:55 for me, took me a while to understand how the puzzle worked but once I started I never stopped
Sudoku in a sudoku puzzle? Outrageous!
29:59 "We can do a little bit of elimination..." like noticing how you have a 27-pair, which cannot be flanked by another 27-pair because you'd end up with 5 difference and thus you can place the 4 in the middle? Probably not. I'm sure a lot of other heavy kicking and screaming logic will solve it too. :P
Same goes for the 9 next to the 6 in the bottom row, which can be eliminated too because of the 3-difference and lack of diamonds.
I can figure out how Simon's approach worked: no diamonds? Ok. All I need is the Ace of Spades!
Needed a little help from Simon a couple of times, but what a lovely puzzle!
Wow! What a brilliant puzzle. I am really enthused. When I looked at it this morning I thought I'd make it for breakfast. Breakfast had to wait......
Not counting a false start where I was working the logic backwards, it took me 87 minutes on the dot. I really had to struggle with this one for some reason, and I almost blew it with some faulty pencil marks in the middle, but I finally conquered it.
I'm from New Jersey and no one here pronounces it as "Joisey." I think that's exclusively a "Jersey Shore" thing.
Trundled on with this one very late at night and got almost to the end but became very distressed because of the 2-1 vertical domino in box 3. For some reason I kept thinking that 2-1=1 was an issue! Guess I'll pick up the next one much earlier in the day.
33 minutes for me. Sure helped that the most recent patreon puzzle hunt was all about diamond-difference, so I had plenty of practice there.
For some reason my morning brain had trouble understanding that 8 in top row with 4 below doesn't mean difference of 4
40:44 ... Clover is one of my favourite setters. I find her puzzles are a perfect level of challenge for me too. I find them tricky but usually manageable.
Got it without the video, surprisingly! Though I did briefly pencil in the last digit in the bottom right rows and columns at first by mistake.
What a lovely puzzle!
I love this puzzle!
13:20 for me. Really interesting puzzle!!
28:42. So while not faster than Simon's solve, it was shorter than the length of the video, which is always nice to achieve as a rather slow solver.
22:46 there was naked single 3 in r4c5. Which would had resolved 23 pencil mark on r1c4
Notice at 20:20 the 7 logic you used. That could simply be deduced because of the 7 pair a the top of column 5, and the fact the 7 and 5 would make a difference of 2 in row 4.
A great fun puzzle from Clover
Happy birthday Alice’s husband!! 😂
Alice's email is certainly a puzzle and you have to deduce her husband's name. Normal sudoku rules apply.
Would love to see a puzzle with multiple variant rules but be made up completely of negative constraints. XY Difference, Kropki, XV, etc.
Took me 53:06 but I finished it on my own!!! Great puzzle and it was amazing that it solved as I had so many pencilmarks... YAY me!!!
At 20:00 Simon could have gotten the 7 in r6c4 by focusing on r6c5 seeing how the 5 couldn't be next to a 3 or 7 from a math perspective rather than using sudoku.
29:02 ... I had a lot of 'D'Oh!' moments in my solve (where I overlooked a write-in digit), but I'm still content with how I did
Another gem from Clover the Clever!
I see.
I kept getting conflicts in different places
Apparently, "the 1st row or column" only speaks of the *top* or *left* .
I thought the "1st cell" was on *either* end.
No wonder.
Cool, Clover.
😲😂👍
For example here, (the "4s" in two places in col2)
I thought that 1st cell "4" couldn't be there because of the "2-6" difference.
I have a feeling it only means the top or left
[Not the 1st cells on the right or bottom]
Confusing a little, but the rules probably say that..
Maybe lol
...@13:38 (those "4s")
*NO,*
The rules just say "1st digit in that row or column."
That's confusing
[There's a "1st digit" on both ends -- like "X Sums" ]
[[Edit: also like "Sandwich" and 'Skyscraper" -- and maybe more]]
I think the rules only mean row1 and col1
?????
Thanks
Again a very clover puzzle 😎
15:45 for me. liked it.
130 no help with some breaks. Was nice how it slowly unfolded.
25 min (which feels not too bad), but I swear it felt like an hour in my brain! well done Clover, and thanks. Simon, thanks for the charming videos.
I misunderstood the rules at first, but after I checked the video to make sure of what was considered "first" in a column, I got it in 31:27.
28:12 for me. Lovely puzzle!
Was anyone else just a little sad that Simon never used the 1 in the top corner as a restraint. Yet at the same time his mind finds more elegant solutions, but I kept saying use the 1, use the 1. He didn't need it though.
Is there any way where i can send you the sudoku i found very hard?
That puzzle is... Wow.
20:05 Oh Simon. 7 can’t go next to 5 either.