This Sudoku Is As Easy As 1,2,3!
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- čas přidán 15. 06. 2024
- * TODAY'S PUZZLE **
This sudoku will teach you a thing or two about the nature of three consecutive digits! It's called Defrag and it's by mormagli. Only three stars for difficulty and it's had many well-deserved recommendations - this is simply lovely.
Have a go at the puzzle here:
sudokupad.app/62jG8GMhp7
Rules:
Normal sudoku rules apply. Each purple line contains a set of non-repeating consecutive digits. (These digits can appear in any order). Cells separated by a black dot contain digits where one digit is double the value of the other.
** ISLANDS OF INSIGHT STREAM INCOMING **
We're going to risk streaming this game, which sounds so perfect for the channel. Tuesday night at 10pm UK time - we'd love to have your company! You can watch it here:
czcams.com/users/livenGgZYUt1zpg
** PATREON REWARD DAY **
Yesterday we published a new sudoku hunt, Evening Attractions, themed around Negative Constraints as our March competition.
They'll also be a bonus crossword video from Simon and his solve of Region Geometry by Emre Kolotoğlu (3hr 36min long...!) released over the weekend. And Simon's discussion video about Dean Mayer's Sunday Times crossword from last weekend will appear at 1minute past midnight on Sunday morning (which is the moment that competition has ended.)
/ crackingthecryptic
** KICKSTARTER - DELIVERED 24 December 2023 **
Our Kickstarter has finished and we've created the finished novella/puzzle collection for you. It was delivered on Christmas Eve so check your inboxes!
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** ORDER OUR NEW BOOK AT THIS LINK **
If you would like to get hold of a physical copy of our new book, Cracking The Cryptic's Greatest Hits - Volume 2, there is still a chance. Visit the link below:
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▶ SUDOKU PAD - Use Our Software For Your Puzzles ◀
You can input classic sudoku puzzles into our software and help support Sven, the programmer responsible for the wonderful user interface we all use to play these puzzles everyday. The app also comes with 12 handmade puzzles from us:
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ALSO on Amazon: Search for “SudokuPad”
▶ Contents Of This Video ◀
0:00 Theme music & puzzle intro
0:50 Islands Of Insight Stream incoming
1:47 Patreon craziness!
2:54 Happy Birthdays
5:04 Rules
6:18 Start of Solve: Let's Get Cracking
▶ Contact Us ◀
Twitter: @Cracking The Cryptic
email: crackingthecryptic@gmail.com
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Simon Anthony & Mark Goodliffe
Box 102
56 Gloucester Road
London
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(Please note to use our real names rather than 'Cracking The Cryptic'.)
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Let me correct the title: This sudoku is as easy as The square root of minus 1, 2 to the power of a googol and 3 divided by zero.
I ate a lot
I don't get it
@@edwardlafferty8796 Calling this Difficulty 3 is absurd
So it's undefined/indeterminate
I love Simon’s smile when he gets a 3 in the corner. His whole face lights up like a little boy on Christmas Day - wholesome af 🥰
Just have to add a comment that many of us are not ready to retire "3 in the corner". If all of you who are no longer enchanted by that fun, please find tolerance for those of us who still get a giggle out of it, even after watching years worth of puzzles! I, for one, will always treasure anything that brings light and fun into any endeavors!
No tolerance for the intolerant and hateful saying
What a double standard you have. "Just tolerate me making fun of you. I enjoy it so much, it's worth it."
I enjoy Simon's enjoyment. If he gets tired of it, then it will be ready to retire it. Until then, I'm happy to hear it every time. (And I suspect that he understands how much pleasure it gives us, and that is part of what pleases him - it's a mutual happy-to-see-the-three-in-the-corner cycle.)
I love when the secret is shared with us.. every time feels just as special as the first 😂
3:11 OMG i'm soooo glad to hear that i'm not the only person that listens to your soothing voice as I'm falling asleep at night lol
Not by a long shot. Simon has many facets. You can watch to learn how to solve sudoku. You can watch to be entertained by his gentle wit and self deprecating humor. You can watch to learn new words. You can watch to see if he’s agreeing with his brain or reprimanding it for not giving him answers. You can watch to see if you can scan better. You can watch to hear him praise the setters. You can watch to smile at his enthusiasm and unbridled joy. You can watch to catch up on what your friend, Simon, (who shares secrets with you) is up to. Or if it’s been a rough day and your mind won’t let you calm down enough to get some sleep - just listen to his soothing voice. Many reasons to watch every day. 😁
this was a fun one! when i see a shorter video from you guys i usually take a crack at it myself, using your video as hints to help me along when i get stuck. i almost always need your help to get started, but find it very enjoyable when i'm able to deduce a few things, get stuck, come back and unpause the video, and then you do the exact thing i just did (though much faster on your end!)
Not quite easy at the beginning, so I had to watch Simon for a few minutes. After that I could solve it on my own. Great puzzle.
"Droopy bits" at 13:45 LOL
Simon - "I have to have a cleverer thought"
Me - "Or you could just do sudoku..." 😝
Time to phase out "3 in the corner" and embrace "stuck in the middle with 2"
NO!!!! No phase out of "3 in the corner!" We can add more fun without losing the old!
@@danitajaye7218yes! Keep both!
Dots to the left of me, Renbans to the right
@@danitajaye7218Go out yourself in a corner and make fun of yourself. Leave me and other religious people out of it.
I've had some chocolate cake, indeed! Thank you very much :)
Happy birthday!
I absolutely had to try this puzzle before watching the whole video because it looked interesting and possibly within my grasp - which it was indeed! But I always watch the beginnings of yours and Mark's videos no matter how little time I have, Simon, because I love the birthdays and other greetings and the news from around the channel. Thanks for the video, as always!
What struck me after the initial 6 was inserted was to consider set theory based on the same 3 boxes to get the 1,2 pair in the top LH corner. Since box 1,2 and 4 contain complete renban lines in all but 3 squares, we know that 3 lots of 1 to 9 are allocated to 8 sets of 3 consecutive digits and the 3 individual leftover digits that are subject to black-spot doubling rules.
Two sets of 9 digits must account for 6 renban lines which must be 123, 456,and 789 to avoid generating leftover singletons (eg a 234 renban would leave an awkward lone 1). The final 9 digits are going to be shared between 2 renbans, the unknown double and the previously discovered 6. Only a 1,2 pair with the 6 would leave a set of 3 consecutive digits to neatly fill the gap (126 and 345 don't have a knock-on impact on the 789 line needed to use up the rest of the set).
i cant wait for the islands of insight stream, im about halfwayish through and am loving it, im sure you and mark will too!
67:06
I started using colours to split out the numbers in mod 3 and it helped to a point, but eventually made things too cluttered to find a way forward until I decided to delete it all and suddenly the final steps were much more obvious. Lesson learned.
This is another proof that beautiful puzzles don't have to be monstrously hard.
What a lovely puzzle, such a satisfying solve!
I cannot believe I sat here and watched this whole thing!
I always delight in knowing that I'm one of Simon's favourite people
Lovel puzzle. Thanks for an excellent solution.
amazing that you mention The Witness and i just beat it last night! i'll have to watch your playthrough after i do all the puzzles!
I liked how this puzzle was so visually simple but had such unique logic.
Another trick for these renban puzzles is that a renban of length N must have one of each digit mod N. For example in this puzzle where they are all 3-length, they must all have a digit mod 0 (369), a digit mod 1 (147) and a digit mod 2 (258). This quickly gets you that R3C2 and R4C3 have the same value mod 3. Not that this insight actually gains much in this puzzle.
Great tip! The same applies in a couple other places, such as R3C9 and R4C7. I color coded these "modular pairs". While it didn't help with breaking into the puzzle, it came in handy later on.
So excited for the Islands of Insight stream!!!
BEAM!!!
A very well crafted puzzle @mormagali! Thank you :)
Finished in 52:12. Not sure why, but it took me a while to figure out how to solve this. And then when I did, I made a bad assumption where I got into a wrong place.
Despite the issues I had with it, it was a fun puzzle!
Clever puzzle. I liked it a lot.
I got 109 minutes. This one was pure logic all the way through. It felt like trudging through mud, slow and steady. Overall, this was really enjoyable, but required my full concentration. Very good puzzle!
I completely missed the break in. I ended up using columns 1 and 2 and noticing that the non-renban digits had to wrap around the renbans that weren't 123, 456, and 789. That lead to the black dot being 12 and ultimately through some thought to r5c2 being 9. From there the solving strategies were similar!
29:11 Sudoku will always be your friend Simon, you may want to visit him a bit more often 😊
Looking forward to the stream. Hear essence of grape 🍷is a natural Dramamine.
I'm trying one of these puzzles for the first time. I don't know all the patterns so I'm a bit out of my depth. Had to watch the video until 18:30 before I could finish it. Considering how little he had filled in by then, I'm pretty happy with finishing it.
Interesting break-in. Took me a few minutes to figure it out the right way. 46:43
One thing I noticed at the start was that r5c2 was the only cell in the first two columns not on a three cell renban within those columns or a black dot in those columns, so had to he divisible by three. Turned out not to be that helpful though.
First time back to sudoku in a while. Proud to get 01:15:52 on this one
When Simon mentioned Aia in the birthdays, my first thought was of the game dev CZcamsr AIA. Not sure if they're the same person.
This grid had me jumping through hoops
And now my brain feels just like poops.
i feel so uptight
And so mad I won;t write
A limerick at all! No, I... oops.
We added "funny funny things" to the glossary in the Feb 29 puzzle, and now we need to add "droopy bits"
This one had great tricks!
At 33:50. Top right can't be the 7 because second row 8th and 9th would be a five-six pair, just like in the fifth row, so making the grid unsolvable.
Islands of Insight is a great game, thought you would get to it very soon
Love how Simon likes avoiding the intimidating word 'ratio' in the ruleset, only to immediately jump to giving algebra equations.
😄
I'm just kicking myself that I got stuck on one bit of the logic (finding the 789 pair in the top left box) and it took me way longer to solve as a result... great solve from simon as always though!
This was my first renban sudoku and I gave up after about an hour when realizing I made mistakes twice and had to start over:
1. I falsely assumed in the upper left quadrant that you can't use 456 for a renban because I forgot that the black dot can be 1-2, so I thought there were no options for it left.
2. I forgot that the Renban digits don't have to be consecutive, so you can't assume you have 4 even digits in a line or column that has 4x2 renban fields.
And then I was at the end of my wits on what you can even reliably deduce from renban and just let you handle it. It was really educational to learn the techniques you used. I can't help but wonder if the very first step was what the author intended, i.e. where you marked 26 cells, saying "those have to be divisible by 3", or if this puzzle has other approaches as well.
74:00 even. I'm bad at purple lines! Finally (after like 10 minutes) figured out 1s and 9s on purple lines are very powerful and 9s couldn't be on black dots and was able to restrict a lot of the grid from there.
25:23 "what more could you ask for?" - solvable by mere mortals, maybe? 😀
48:41 for me. I wouldn't exactly call it easy 😅
I spent half an hour staring at this one and completely missed the trick for the break in. I thought the puzzle had to either start at box 1 or column 3 and just couldn't get going from there.
Apparently the name of the Canadian city of Kamloops is an Anglicised form of the First Nations name of the settlement, Tkʼemlúps, meaning "river junction".
Thank you for educating us on First Nations' info!
@@danitajaye7218 You're welcome - like Simon, I thought it was a striking name (to someone born and raised in England!) so I looked into it. As a recent migrant to Aotearoa New Zealand, I like to find out the stories behind the placenames.
Wow entirely diff opening...the div3 is awesome.
Gonna resolve to see what happens.
I went for chasing the 9: wentt looking at R2&3 first
But break for me was B1...where u can prove which Ror C B1:9 is ...and then chase the 1....followed by what happens in B7and B3
Wow, my break-in was totally different. First digit I put was 9 in R9C3, I started with thinking about 1 and 9 but quickly switched to 9s since they also can't go on the black dot. It gave me candidates for 789 lines
That was a clever puzzle, but in almost four years of watching CTC I don't think I've ever perceived such a mismatch between the indicated level of difficulty and the actual level of difficulty I experienced.
38:07 on second attempt... boy this made me feel real dumb as it was mostly just brute force & guessing
I found that to be much harder than 1,2,3 (perhaps the exclamation mark in the title is actually factorial, so it's 1,2,6 instead). I spent about an hour trying modular tricks and managed to color a few cells before I gave up and had to watch the video to see what I was missing. It was about 18 minutes into the video when I got my jump start and was able to finish on my own.
Is there a rule and/or a kropki-style notation for neighbouring digits to be any factor of one another? (e.g. 3 could neighbour 1, 6 or 9, but 6 could neighbour 1, 2 or 3 etc) I don't mean in this puzzle but it just popped into my mind that it might make for an interesting variation on the usual black dot rule.
I have seen black and white dots with a number in them, which indicates the ratio or difference between the numbers and I believe Mark did a puzzle quite recently (last week?) where he had to figure out which dots represented which ratio/difference.
23:57 One thing I can see here - the green cell cannot be 9, since that would push a 789 on to one of the renbans fully in box 3 and that's too many 789s in the first two rows
“Sixes are naughty digits”. Spoken like the new Number 2. :)
I really thought modularity would be part of the solving process since each little renban line must have one of each number (mod 3).
For some reason I found this puzzle much more difficult than some other puzzle. Took me 83:25 to solve.
20 minutes of staring at an empty grid is not as effective as counting sheep, luckily I got some ideas in the morning (Not for falling asleep) and took just 50 more minutes to finish it
16:15 for me. Great puzzle!!
Quote of the day: "Right, now I've got a 789 pair in row 2". 18:30 if you missed it.
*Easy as 123!*
Terrible factorials-joke, but technically more accurate
got the logic, but made a mistake when i filled in the numbers.
71:24 for me
😃
Sudoku as easy as 1 , 2 and 3 factorial ?
Islands of Insight sounds cool until I see that it's an MMO and has over 10000 puzzles, which seems like I'd never finish it, which makes me want to not try it at all
65 minutes
Under 301 club!
This one took me about 1h 20min. Not an easy one.
Time to retire “3 in the corner”
Nooooooooooooooooooooo!!!
Easy as 1,2,3 and 3* difficulty? Does not compute.
Oh, I thought it was 3!, which is equal to 6.
this sudoku is deceiving, the time should be aruond 1 hour
Great puzzle and solve but please try to avoid noises like at 6:52. It's distressing to listening to.
😂
Your voice seems very raspy at the beginning of a video before your voice warms up. Warm water in a thermors or hot tea migh help.
Maybe he has allergies- as I do. I’ve been hoarse off and on for several weeks now.