The Best Kakuro EVER!
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- čas přidán 23. 11. 2020
- ▶Today's Puzzle◀
Today's puzzle is a kakuro variant by Genomico (thanks to Glum Hippo for the recommendation). It is a simply gorgeous creation and we urge everyone to give it a go! You can play the puzzle here:
git.io/JUgwF
Rules:
Fill some white cells using digits 1-9, such that the sum of each block of digits equals the clues in the grey cells. A clue above a diagonal applies to the block of digits to its right. A clue beneath a diagonal applies to the block of digits below it. Within a block all digits are different. Some cells remain empty. All empty cells are traversed by a single closed loop that travels horizontally and vertically and doesn’t cross or overlap itself.
Advice for using the software interface for today's puzzle: The "Tab" option can be used to adjust what the Tab button does on the keyboard. If you tick Surface/Line - normal/Candidates then you can Tab between these functions to allow you to shade/draw the loop/enter digits respectively.
**************************************************************
Congratulations to Clover, who Sam has chosen as the winner of the competition to solve his barbaric puzzle. If you've not tried it, you can play it at the link here:
app.crackingthecryptic.com/we...
Rules:
Normal sudoku rules apply. In cages digits sum to the small clue in the top left corner of the cage. Digits cannot repeat in a cage. Clues outside the grid give the sum of the cells on the indicated diagonal. Digits may repeat along the diagonal.
Sam has made a video demonstrating the solution path to the puzzle, which patrons of the channel can watch here:
/ crackingthecryptic
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Miracle Sudoku is OUT on Android, Steam and App Store.
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▶SOFTWARE◀
Play the puzzle in the video by clicking the link under the video (above). We are building a website which will allow you to enter your own sudoku puzzles into the software and this is coming soon!
▶Logo Design◀
Melvyn Mainini
▶ABOUT US◀
Hi! We're Simon Anthony and Mark Goodliffe, two of the UK's most enthusiastic puzzle solvers. We have both represented the UK at the World Sudoku Championships and the World Puzzle Championships. We're also "cryptic crossword" aficionados. Mark is the twelve-time winner of The Times championship and Simon is the former record holder for most consecutive correct solutions to The Listener crossword. We hope we can help your puzzle solving while also introducing you to some of the world's best puzzles.
Thank you for watching!
Simon and Mark
![[EXTREME] If He Can Solve This, Help Us Hit 300k Subs!](http://i.ytimg.com/vi/6AfJNnzLt7M/mqdefault.jpg)
![[EXTREME] If He Can Solve This, Help Us Hit 300k Subs!](/img/tr.png)
Thank you very much Simon for solving this puzzle and for all the nice words you said. It was fantastic to see you enjoyed it :) And thanks everyone for the nice comments!
What a beautiful puzzle! I really enjoyed it thank you!
A very enjoyable puzzle indeed! Thank you so much for this masterpiece.
Give us more
Indeed, great puzzle!
It is a masterpiece all the way.
I really loved the end, where the line that had _no clues in it_ turned out to be the key to finishing the puzzle. That was exceptional setting.
I solved it! I'm ridiculously proud of myself for figuring it out. Around the 31:15 mark, I got stuck - I was stuck in the assumption that I HAD to turn down, but, simultaneously, recognized that I couldn't make the 30 work if I did...but also, what do I do about the 9-down clue in the column to the left? After grinding on it for awhile, I gave up, having assumed I had screwed the puzzle up, and started watching the solve...
But before he got there, just listening to Simon explain himself being very methodical about the solution, I decided to pause the video and have another look. I knew I needed to fill in the bottom two rows, I knew I needed to fill in two of the 4 cells in the 9-down clue, and I knew I needed to keep at least 4 of the 30-down cells open, and I knew I needed to leave two exits and respect the 1-down clue...And I sorted it out :D I'm really way too pleased with myself, but this puzzle was quite challenging for me, so I'm glad I overcame. I had a ton of fun with this one
Good job, mate!
For the crowd who was worried he wound't get rid of the purple, I feel you. Absolutely beautiful puzzle!
I was actually sad he started removing purples mid puzzle, I wanted him to keep them so we could know how many / which of the loop segments were instantly discovered and which ones required further reasoning
I was more frustrated that he made the “must be a number” green and the “must be a loop” purple since the loop was green. Bothered me the entire puzzle.
Great video, would love to see more “one-off” videos, different puzzles than the normal sudoku! Super cool to see different thought processes
for whatever reason, i've generally not enjoyed kakuro, but this puzzle was pretty exceptional.
Dang, Austin, you beat me to it. That's exactly what I was going to say, word for word.
IIRC, last time they did a kakuro, Simon said something to the effect of, if you think kakuro puzzles are boring, you're absolutely right, and the solution is to play hand-crafted ones, since they're way better than the computer-generated ones in newspapers.
Always great to see other puzzles than Sudoku now and then.
Thanks, Simon for mentioning my name. I am glad the tool is being useful.
Another recommended settings: Tab Selector - Surface, Composite, Candidates
Surface - Select your 2nd color of choice and you can always get Green Color using Right Click, no need to switch between two colors.
Composite - Select Loop - Line or x. Then you can insert crosses using right-click on where the loop cant turn.
Remember to PANEL: ON for mobile devices to open the keypad for entering numbers while in Number mode.
Edit: New Update Released - PANEL will automatically show up on mobile and iPad, user doesn't need to do any step.
Edit: (28th Nov 2020) - New Update Released - There is a Sudoku solving mode. This behaves almost similar to CTC app with z,x,c,v for the shortcuts. You can use Tab Selector as well instead.
Happy Solving :)
is it possible to use right-click for a different surface colour (instead of always green)?
@@boomstand2872 unfortunately no. Only green is available as right click as a standard.
@@2009swaroop that's what I thought. Thanks anyway
Thank-you, Swaroop, for the software. I could use on mobile. No problems (other than my fat fingers missing intended cells - unavoidable 🙂).
@@RichSmith77 Thank you. Haha. You can use the resize button at the top left and increase the display size and at that will increase cells size :) And then use the white area (top right) to zoom out using two fingers. I hope this helps.
Yes, please do more non-sudoku puzzles. It's fine even if they aren't quite as stunning as this one too. The day the number of non-sudoku puzzles on this channel is at least a half of all the published videos, I'm buying all your apps (by the way... non-sudoku app when?) and becoming a patron. For now too much imbalance between sudoku and other puzzle types.
49:48 I absolutely LOVED this puzzle! It doesn't hurt that I am a big fan of both Kakuro and 'loop'-type puzzles (of which there are many); the way this combines them is simply gorgeous!
Many thanks for posting this one!
I had to get a little help from Simon twice, but this is the first CTC puzzle that I actually completed myself, and I will be chasing this high for the rest of my life
Totally agree that this puzzle definitely earned its place on the channel. Stunning. Big fan of non-Sudoku puzzles getting some love.
21:19 "There, i've said it. Now if I've said that, and I have" 😂
the verbal equivalent of "if(TRUE)" :D
2:16 Rules
5:30 Let's get cracking!
Yes! More kakuro like this one, please. Loved this puzzle
I so admire Simon doing loop puzzles! Spectacular!
A book of Cracking the Cryptic Knowledge Bombs? SIGN ME UP! 20:23
Needs to be one of those calendars where you tear off a page and get a new knowledge bomb every day!
Maybe we could learn some advanced things like the fact that 9 is not 10
Thanks for tagging this so I could immediately find it. I did wonder if he'd mention my tweet 🤣😂 Amazing. PS. @ajtowns Calender would be amazing.
@@ajtowns are you @ajtowns on twitter?
i love when you do other puzzles, brings much variety. for me every second puzzle could be a non-sudoku one
What fun version of Kakuro, solved elegantly as usual. Thank you Simon.
Definitely more of those types of puzzles. It may be true that a good portion of people are here for the sudoku, I find that the different puzzles are rather enjoyable, especially when they're ones that are made to the quality of this puzzle.
I am absolutely amazed that all the numbers in this grid were disambiguatable. I was looking at it like "how?" And yet it all fell into place in the end. Fantastic!
Absolutely loved this! More Kakuro please!
It makes me really happy when you neaten up the puzzle in the end. Never saw this puzzle before, but I love it!
🤣😂🤣 OMG the joy when Simon tells you off during a puzzle!!! Best day ever :) To be fair he had a point, page would never be enough :)
Fantastic puzzle. Great to have one where we can touch ourselves orthogonally.
Now that was a linear solve path. None of the deductions were breath-takingly difficult, but it was quite often difficult to see what had to be done next. And no step was skippable or solvable by alternate means. Very nice.
Didn't think I'll be able to make it. But persistence paid. Took about 2 hrs. But the feeling of skipping to end of the video and comparing with the final solution was just awesome. Thanks Simon for showcasing such a delightful puzzle.
This was a fun puzzle, and I'd totally agree with including "special guest" puzzles of differing types to increase the variation on the channel and introduce (and showcase) other puzzle types and setters. I found pentominous puzzles through this channel, and they quickly became my favourite past-time.
That was amazing to watch. Please keep doing other puzzles than sudoku if they're this good!
Definitely do different puzzles. Bring back Star Battle, Slitherlink, Tapa, Masyu, and so on.
I have never even heard of any of these puzzles.
Is there a website where I can learn about these and other kinds of puzzles?
@@wariolandgoldpiramid Look here for randomly generated examples : www.puzzle-killer-sudoku.com/
@@wariolandgoldpiramid the blog GMPuzzles is a great resource for finding and learning about different puzzles. For each puzzle type they have an explanation of how to play and list of easy ones to get started. For example, star battle: www.gmpuzzles.com/blog/star-battle-rules-and-info/
@@OliveDRob Thank you!
@@bencejoful Thank you!
The title is not wrong. This was one of the best puzzles I've seen in a long time. The logic is exceptional.
This was an amazing puzzle and I’m very glad that you decided to show it! I vote yes on showing similarly brilliant puzzles here
Wow, a dream comes true for expert kakuro solver. Love it. Need to find more puzzles.,
Simon, yes I adored this puzzle. I am always happy for you to divert away from Sudoku to showcase quality puzzles like this. I have a lot of trouble with loop puzzles in my head so the more I see you do them the better! Thanks as always for great content, looking forward to the December hunt!
Oh my goodness, I'm SO delighted that you're doing this one! It's time for full disclosure: I never finished solving it myself... I recommended it on the strength of a completely biffed attempt.
The most beautiful ending I’ve ever seen.
Of course, I would love to see puzzles that are different from our usual. There is a couple of Nonogram variances in the Discord archive you might want to check out. This one that you did was very nice to watch you solve. I did love how you explain the logic. I think this channel helps us experience new types of puzzles and variances so we can build on our knowledge and be able to solve similar types of puzzles for ourselves.
Agreed. Simon mentions at the start that they lean to sudoku on this channel because that's what the viewers tend to be here for, but I actually prefer greater variety in the puzzles.
That's not to say that the quality of the puzzles should be sacrificed for variety though. The most important thing is probably that it be puzzles they enjoy.
@@kilwade Yes, wholeheartedly agreed. This channel seems like it used to do a wider variety, and lately it's been so much sudoku. Loved to see this one!
i love switching up and trying these loop puzzles but that ending though was incredible setting
Loved it, it is crazy how there is a unique solution.
What an amazing puzzle. Not too difficult, I'd say, took me under 25 minutes. I do a lot of Yajilin and Kakuro and the solving path is pretty much straight forward. Like Simon, I had some trouble at the end, finding out what is going on with the 2 clue and the crowded middle row.
This construction is absolutely genius, it contains every bit of logic that Kakuro and Loop puzzles have to offer. The finish using the unclued middle row is fantastic. I take a bow.
Thank you very much David :)
That was an incredible puzzle! I'm not usually all that keen on loop puzzles (although getting more used to Penpa might be something that helps there!) but I tried this and really glad I did. Unfortunately I forgot that Penpa doesn't start the clock automatically and only realised when I was quite a way in, so I have absolutely no idea how long it took, but very satisfying to complete it without peeking at the video 👍🏻
I always enjoy this kind of puzzle where there is a unique path to the solution. This one was difficult enough to get great logic but not too much to be unsolvable, this was indeed a great puzzle.
Loved watching this with my breath held....what a relief to see it end so beautifully. Kudos to the creator of this gem. Just wonder how such puzzles are every designed! What a skill!
Enjoyed this one a lot. Nice to add some of these “not-sudoku, but still vaguely reminiscent of it” puzzles into the channel. Very fun to watch the solve progress.
This was a brilliant solve! I got stuck at the beginning as C1 and C3 both had 0 clues and by reading the clues, I was thinking it's a snake that mustn't touch itself so I had to watch the video to understand what was going on.
A very linear solve by a brilliant constructor.
I did think the choice of shading could've been better, as the green numbers were hard to read on green cells.
I personally used Yellow for numbered and Purple for looped. Green numbers stood out on Yellow cells.
Another option was the classic Odd-Even pair we use on CTC, Orange and Blue - Green numbers stand out on orange cells (or blue cells).
Well, that's it. I'm DONE with Sudoku! From now on I only want to do Kakuro Loop. Please tell me that's not a one-off and where can I find more? That was amazing. I made so many logical leaps, some worked, some made me watch more video to see what I missed. Thanks Simon, for a truly beautiful solve and thanks Genomico.
more of this please, fab!!
I do a Kakuro puzzles every day but they are always standard, this is the first time I have ever seen a variant kakuro and I must say it has whetted my appetite for more. I need to find a source for variant kakuro puzzles. Thanks for posting, I loved it.
Great puzzle, I find it refreshing a puzzle different from sudoku from time to time.
I definitely want to see more non-Sudoku puzzles like this!
Yes. The mix you have now is great. I look at all these as grid logic puzzles. A completely chess based number puzzle without sudoku rules could also be fun.
Good one! Entertaining all the way to the end.
This puzzle was quite fun!
A&B of course!! What beautiful solve path...
I'd love to see more of these. This was really enjoyable to watch - as always it's your appreciation of these puzzles that makes the video.
That was fun. The 2 problem at the end was easier to solve by noticing the orphan cell below it.
What a beautiful puzzle!
52:22 - the loop's nice - it takes a surprisingly interesting route
Amazing puz! More of these please!!
More puzzles like this, please!
So many knowledge bombs! 💣💣💣
I think that one nice clue for this that might help you go faster is the fact that every single cells must be filled with either a number or line segment which can force some line segment to travel in a certain direction that will fill the cells.
Really enjoyed this one. Managed it in not to bad a time.
This is my first exposure to kakuro. I really enjoyed watching!
Yes, please! Sudoku or not, I’m always excited for a beautiful puzzle.
Love the outfit/puzzle color-coordination! Especially because now there’s no doubt that your pants (ahem) are grey!
Lovely kakuro, thanks for showing this.
The puzzles you showcase are always so nice.. ever since the first video I found I keep being compelled to do the puzzles before watching the video, which takes me far longer than you, but is always so rewarding. There's this reward when I solve it that I get to watch you solve it too, and it's so validating for some reason seeing you take the same paths. Though much, MUCH faster.. Thanks for those videos, really nice.
This was so much fun! Kind of felt like a detective story :) Entertaining enough to first solve on my own and then watch Simon solve (faster but oh well)
Very happy for good puzzles and logic and joy
I love seeing other types of puzzles on this channel, as long as the quality is as high as in this one. Someone else said, it’ NOT called ‘Cracking the Sudoku’, after all.
Having said that, I would hate to see the channel go less than at minimum 50% Sudoku.
"Six, seven, eight, nine, are the biggest numbers"
Hate to break it to you, Simon, but...
Give the man a break, he was wearing closed-toe shoes that day
Yeah, what about 18? Or 24?
@@andrewchandradat8312 I'm sure at least one of those is bigger, yes!
F is the biggest number.
That was a fun one! I do have a question: is it possible to color some squares purple right off the bat if no clues point to them? I thought it might impact the uniqueness if that's not the case, but seeing how the middle row impacts the placement of 2 makes me question myself...!
For a concrete example, for the row 4th from the bottom, the second to last column doesn't have a clue pointing to it. Is it safe to assume that this square is not going to have a digit?
This is the first puzzle I've attempted in a while. Loved it
i enjoy kakuro but this kakuro is on a different level
Very pleased with this puzzle, keep those extraordinary pieces coming, please.
I'd love to see this channel cover Hidato/Hidoku puzzles
I would love to watch more puzzles like these. This was exceptional
Great to see various other types of puzzles! They feel like special episodes, could be a monthly feature
I enjoyed it and I appreciate puzzle variety. It's not called Cracking The Sudoku.
I really enjoyed watching this solve and would definitely like to see other types of puzzles on this channel!
42:30 There's a nicer way to determine where the 2 goes in row 7...
Suppose that the 2 was in the leftmost cell. Then the cell below must be a digit for the 24 clue, but since the column has to add up to 9 and we've already used a 7 in the 24 clue, there is no valid digit there.
I think an important thing to notice in a kakuro like this, is that the cells that have no number looking at them should always be "loop". Like c4r3 and c11r12 for example
I think this was my first kakuro ever, and it was a real joy to solve. Thanks for showcasing it, and I'd certainly love more pencil puzzles once in a while!
Now, if all kakuros are like this... wait, if this is "the best kakuro ever", does it mean no other will be as good?
Loved this one, so glad the Penpa interface is tolerable now. Really intricate and fun puzzle.
What did they change about the interface?
@@Xeridanus tons of things. For starters: Ipad support. Tab selector feature
Complete list can be checked here - github.com/swaroopg92/penpa-edit/blob/master/CHANGELOG.md
Thanks for this, please do more Kakuro!!
Great puzzle with a brilliant piece of logic at the end.
loved this, what an excellent combination. Wonderful logic in some of the smaller gaps / more congested areas, I got myself tangled around that 17 or a while!
What a clever idea! Love seeing interesting variants of non-sudoku puzzles here.
Actually managed to solve this one, and going back to watch Simon, it was amazing that he didn't once, that I noticed, use the requirement of uniqueness to deduce tiles that must be lines, because I relied on it quite a lot. As a trivial example of what I mean, even without knowing anything but the givens, row 2 column 2 has no clue in it's row or column, and only has 2 cells in the row and 3 in the column. It therefore MUST be a line, because otherwise there is no possible way it could ever resolve to a unique number. That's only 3 cells total, if all were numbers and unique, it would still leave 6 values that could go in the cell without creating any conflict. That example isn't at all helpful, being so easy to spot otherwise, but there were loads of places like this, some you could spot immediately and others that only emerged as other parts of the puzzle were completed, particularly cells being identified as definitely line and reducing the possible spaces for numbers in an un-clued row or column below 9. I spent most of the video waiting for him to start using this logic, but every time he ended up working around to proving the same thing by some other method.
This was a great puzzle
I loved this puzzle :)
Enjoyed this one a lot! I don't think it's hugely difficult, but it's a narrow solution path.
Great puzzle!
That should have been one of the stretch goals: "Companion Book - CTC Knowledge Bombs".
Having said that, 35:01 was my final time. I LOVE Kakuro, and this was a fun variant. I also need to remember to go back and finish another variant I was working on, with letters and numbers.
Not sure if that's cheating or not, but was it safe to assume that every "lonely" cell that's not attached to any given clue & has less than 9 cells in its block is automatically an empty cell?
Because such a cell having a digit would imply that the solution doesn't have a unique answer anymore and therefore would be broken, since no clues can help to give it a digit, and as there are less than 9 cells in its block, even if all other cells had a different digit, the "lonely" cell would still have at least 2 different possible answers.
I filled in those lonely cells in the grid as "automatically empty" and I reached the same answer as you did..
The usual view seems to be that you should not only _find_ a solution but also *prove* that it is a unique solution. That means that you shouldn't assume uniqueness in order to solve the puzzle. Obviously in a speed-solve competition, all that matters is showing a completed grid and it would be mad for them to give you a puzzle that didn't have a unique solution, but for a connoisseur the challenge is to prove it.
yep, spot on. It's stated int he the rules that all empty cells are traversed by the loop.
Plus one for the Knowledge Bombs! They would be like "Fun Facts"!
Another commentor suggested a page a day pull off calendar for daily knowledge bombs. Much better than the page tweet I've been told off for :)
Not exactly my cup of tea, but I appreciate the beauty of the puzzle and you showing it to us!
Second book confirmed "Knowledge Bombs with Cracking the Cryptic"
@ajtowns has suggested a knowledge bomb a day calendar. Much better idea than my tweet :)
I sort of cheated in this one - with the exception of the big middle row where it might be possible to put in every digit, any cell that doesn't have a clue for either the row or the column can't possibly be resolved uniquely if it contains a digit, because there'd be no way to tell which digit to put there. As such, there's a number of cells that must contain loop segments for the puzzle to possibly have a unique solution. That allowed me to skip some of the logic in the upper left (r3c4) as well as made the ending easier. I'm glad Simon was able to prove it with pure logic, though. =)