Stairway To ̶H̶e̶a̶v̶e̶n̶ Eleven!

** TODAY'S PUZZLE **
The usual brilliance today from James Sinclair whose puzzle, Not Just Once, features an intriguing and beautiful stairway of eleven cages up the grid. This is a genuinely surprising puzzle with lots of "Aha" moments. Well worth a few minutes of your precious sudoku time :)
Play the puzzle at the following link:
sudokupad.app/james-sinclair/...
Rules:
Normal sudoku rules apply. Digits cannot repeat on the indicated diagonal. Cages show their sums. Digits in cells separated by a white dot are consecutive. Digits in cells separated by a black dot have a 1:2 ratio (ie one digit is double the other).
You can watch us in the latest @numberphile video here:
• A Sudoku Secret to Blo...
Simon's solve of TotallyNormalCat's Broken Secrets will appear on the main channel on Saturday morning.
** ROLLER COASTER NURIKABE by the_cogito **
Simon's 2.5 hour solve of Roller Coaster Nurikabe by the_cogito is now available on Patreon. Check the puzzle out at the link below:
logic-masters.de/Raetselporta...
Also there's our January Patreon competition: All The Fun Of The Fair featuring sudokus themed around fairground rides!
Join us on Patreon (for as little as $2):
/ 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!
www.kickstarter.com/projects/...
** 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:
bean-games.pledgemanager.com/...
▶ 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
1:25 The Most Beautiful Sudoku Ever
2:19 Hexcells stream Thank You
2:52 Patreon update
3:36 Happy Birthdays
5:17 Rules
6:39 Start of Solve: Let's Get Cracking
▶ Contact Us ◀
Twitter: @Cracking The Cryptic
email: [e-mail]
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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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[@James_Sinclair]

Thanks so much for the feature, really excited to see how you take it on! If I'd known this one would show up here, I probably would've put more thought into the name 😁(for anyone who's curious, it's sort of wordplay if you speak Spanish, but even then I don't know that it really works) I'd like to mention, as I try to do when given the chance, that I publish five puzzles every week at Artisanal Sudoku (can't post a link, but it's not hard to find)-three for everyone, and two for paid subscribers, and I try to keep them fairly approachable. Thanks!

[@longwaytotipperary]

Always enjoy watching Simon take on your puzzles!! 🙂

[@martysears]

Brilliant as always from you James, this was beautifully constructed

[@BijickY]

I love your newsletter! Just the right difficulty level for my skills. 🙂Thanks for making all those free puzzles for us.

[@David_K_Booth]

Great puzzle! Enjoyed solving it very much. Oddly enough, that bit of wordplay was used in an episode of "Only Connect" that I was watching just a few days ago.

[@ingiford175]

Was looking at it, and was thinking that 10 box should have been an X (as in X and V type clues) clue and have a missing step instead of one that has a value of 10

[@bradmccallum1]

Simon: Comes up with some of the most brilliant logic I've ever seen. Also Simon: Concludes the black dot in box 8 is a 48 pair, then completely ignores the 4 at R9C1, AND the blue (3 or 8 ) at R2C5. God bless you Simon!

[@brunodupuis8084]

Yes! I've been screaming at my screen for a while now. Although I couldn't possibly have made it that far!😉😁

[@Mephistahpheles]

@@brunodupuis8084 Indeed. Even revisited it shortly after resolving the green 74, but still didn't use the 48 pair.

[@lhesitante]

My new favourite passtime is to have Simon do al the hard initial work and then I get to half-shout at my screen for minutes when he pulls stunts like ignoring that 48 pair. 😂❤ Please never change, Simon!

[@phuybrechts6875]

And then he forget to look up in column 5 to put 3 in box 2 😁

[@vincet68]

Ha! I love it when Simon's coloring stops him seeing obvious digits - and his response is to... COLOR MORE THINGS! Great solve.

[@istvanmagi473]

Rating this as 3 stars out of 5 is completely insane.

[@RhiannonAgutter]

It’s not super difficult it’s just a little hard to find the next step after filling in that 10 cage.

[@karthick_michigooner7431]

Exactly... Especially if you can see x swings and scan properly

[@James_Sinclair]

I tend to agree! In fact, since I published it, it's gone back and forth a few times between 3 and 4, and is currently back up to 4

[@GuestGod48576]

I think the puzzle is call "Not Just Once" because of all the 11 cages. "Once" means 11 in Spanish, so it's saying "Not Just 11", alluding to the single 10 cage.

[@longwaytotipperary]

That makes sense after reading James Sinclair’s post!

[@EvieOConnorxoxo]

I think you're probably right

[@jmbverlag]

I thought it was a wordplay on „not just ones“, because of the 0 in the 10-total

[@markheisler5118]

Fervently staring at that 4 in the corner as you keep saying ‘maybe it’s sudoku’

[@Ruddigore]

A brilliant solve by Simon. I love how you called out a 'Cell of the Day' 😁I hope this continues.

[@Petrus74-yj4kv]

I wouldn't call it brilliant. Simon was overthinking it - as usual - using his brain instead of his eyes. His sudoku with colours is no better than his sudoku with numbers.

[@57thorns]

49:57 For some reason I am not at all surprised Simon has left two Sudoku disambiguations (a 48 pair, and 56 next to a 7 on a white dot) for later.

[@57thorns]

51:31 I guess that is one way to resolve r5c6 without using the 48 pair. 🙂

[@giornalista]

I was screaming my lungs out at that time :)) Simon got so carried away with the coloring, he just missed the basic sudoku thing to do, amazingly. Lovely moment there :)

[@DecisionAvoidant]

Simon has consistently pointed out in the last few weeks that he doesn't like doing Sudoku specially 😅 He loves these logical puzzles but doesn't like the basis of the system!

[@inspiringsand123]

Rules: 05:40 Let's Get Cracking: 06:44 Simon's time: 49m43s Puzzle Solved: 56:27 What about this video's Top Tier Simarkisms?! Bobbins: 4x (47:15, 47:15, 47:15, 47:15) Three In the Corner: 2x (04:48, 55:03) You Rotten Thing: 2x (49:49) Maverick: 1x (51:52) The Secret: 1x (03:10) And how about this video's Simarkisms?! Ah: 14x (13:19, 16:32, 19:26, 38:16, 40:25, 41:23, 41:32, 46:42, 46:42, 46:48, 47:47, 48:46, 52:29, 54:21) Beautiful: 10x (00:58, 01:24, 01:34, 09:47, 20:39, 20:39, 24:47, 27:14, 27:16, 37:08) Clever: 8x (19:38, 19:41, 26:44, 42:59, 43:22, 56:51, 56:55, 57:12) Sorry: 6x (14:17, 28:34, 29:17, 29:34, 33:02, 53:01) Obviously: 6x (02:52, 04:05, 10:04, 20:51, 49:39, 54:09) Lovely: 5x (00:54, 04:54, 04:54, 07:37, 54:41) By Sudoku: 5x (32:59, 35:20, 46:34, 53:43, 54:56) In Fact: 5x (14:57, 14:57, 35:38, 38:35, 39:05) Brilliant: 4x (00:47, 01:21, 37:28, 56:17) Hang On: 4x (34:42, 34:45, 38:51, 46:31) Wow: 4x (15:26, 19:26, 54:06, 55:59) Good Grief: 3x (19:38, 41:28, 50:41) What Does This Mean?: 3x (25:17, 40:00, 56:10) Nature: 3x (22:49, 36:52, 47:38) Pencil Mark/mark: 3x (28:09, 42:26, 47:58) Cake!: 2x (04:11, 05:14) Useless: 1x (51:49) Goodness: 1x (36:52) Axiomatically: 1x (49:36) Naked Single: 1x (09:45) The Answer is: 1x (07:30) Out of Nowhere: 1x (55:44) Naughty: 1x (51:49) In the Spotlight: 1x (55:06) Incredible: 1x (01:32) Gorgeous: 1x (01:41) Of All Things: 1x (57:00) Bizarre: 1x (45:22) Think Harder: 1x (50:12) Next Trick: 1x (55:25) That is Sick: 1x (37:06) Have a Think: 1x (49:10) Most popular number(>9), digit and colour this video: Eleven (29 mentions) One (89 mentions) Purple (106 mentions) Antithesis Battles: Even (2) - Odd (0) Higher (2) - Lower (0) Black (21) - White (3) Row (15) - Column (15) 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!

[@sundown456brick]

rows an columns tied, thats tight

[@jjkthebest]

"a naked single of rather beautiful proportions" 35:55 I think the simplest way of seeing that would be to think about where blue goes in box 4 if it doesn't go in the 11 cage. It can't go anywhere so it has to go in the cage.

[@stevieinselby]

Fabtastic puzzle! It took me 45 minutes, but I had the good fortune to focus on box 5 first of all (I claim no particular credit for choosing that one rather than box 7!) which gave me a head start over Simon. Hard work, but well worth persevering with 👍🏻👍🏻

[@thurst3224]

Yes! Challenging yet not totally brain crushing. Easy directions. Under an hour. Perfect! Thank you 👍

[@Damogen]

Now we need a song for four in the corner. At least I was chanting about it for roughly 10 min

[@nestoreleuteriopaivabendo5415]

4 it's the end of history, it's caged and frozen still...

[@elliotcossum8199]

The way I'm trying to telepathically direct Simon to the corner is maddening right now.

[@averygaron994]

Whenever you start adding a second layer of coloring on top of a coloring puzzle, I think that always means you've missed a bunch of sudoku. There was a pretty tidy path at the end that you kept skipping over

[@chocolateboy300]

I finished in 102 minutes. This puzzle is incredible. I thought it was going to be a simple math trick by adding all the boxes, then the 11 cages to minmax, however it came to 19 which wasn't either. I, then realized that in each box along the blue line, there must be a set of each 11 total, limiting the row 8 and column 2 11 cages to add up to 11 on their outside the box cells, meaning they were identical. This gave such a cool logic of r3c5 having to be the exact same number as r1c8 or r2c9 with 1. This led to some crazy logic where I could now start coloring the cages and limiting them. It took me a while, but I colored everything and the moment I saw that the row 5 cage I was trying the whole time to figure out was a 29, I yelped. Incredible! The puzzle practically finished itself from there. I never felt lost in this puzzle. I felt like I was working the whole time and loving it. Great Puzzle!

[@life.with.sabine]

Once you get going it is easy to be consumed and forget to step back. What a fantastic puzzle this is.

[@markp7262]

39:57 finish. This was a very fun puzzle, with some great coloring logic. Excellent!

[@Gonzalo_Garcia_]

18:44 for me. That was quite tough. Great puzzle!!

[@zanxstitch]

I had a situation at work yesterday where I had to fix something that was just above my set of knowledge. I really struggled through it and I was constantly reminded (and inspired) to endure and try to solve it logically until you find the break in. Finally figured it out after 5 hours. Thanks Simon for teaching me life skills with your puzzle solving.

[@aytek1ng]

Colored sudoku is absolutely gorgeous!

[@longwaytotipperary]

Yes!

[@Anne_Mahoney]

I thought this one looked familiar, but in fact I'd done the earlier, easier version back last summer. This version is elegant and it was fun to watch Simon solving it -- and even revising the color scheme. 😺

[@MelissaW09]

I'm so glad I only yelled for a couple of minutes. I was following the 2/9 logic before I finished coloring, so I had to wait a bit.

[@ronjohnson6916]

The blue/purple situation in box 4 is normally something Simon spots extraordinarily quickly. In fact the trick to resolving it (no space for two purples in row 4 if it's purple) is something I definitely learned from Simon. Oh well, we all have our blind spots.

[@msgeryjo]

seemed to me that it didn't require going out of box 4 - if the blue purple became purple the two blues would be in the top row and conflict with the blue in the top row of the box 5. i think?

[@DitDede]

The way I figured out the two 11-cages peeking into cell 7 are of the same flavour, was to compare the sum of the cages overlapping cells 3,5,7 with the diagonal (45) to the total of the three cells - that was how I started the puzzle. Once I learned a bit about the content of cell 3, and given the content of the 10-cage, I could write R35+R62+R84=10+R18+R29. Noticing that R18,R29 are 1 and R35 implies that R62+R84=11. Ta-da!

[@mikew6644]

Oh man… it took me just shy of 400 minutes to solve!! 😳 I’m proud to say I stuck to my own logic for alllllllmost all of it. I finally admitted to hitting the wall and came back here only for Simon to immediately remind me that his green color couldn’t be on both sides of the black dot in row 2. Lightbulb moment! Every remaining color and digit dropped in to place within only a few minutes from there. Fun puzzle! Tough but solvable!

[@user-bm7lz6ir8d]

Anytime you put in a pair of digits into a column, row, or box you should scan said row, column, or box and eliminate pencil marks.

[@Millenassang]

It snowed in Paris and was cold too! The whole city was a ice rink, we were walling like penguins to not end up with our butts on the ground.

[@laurettadelmar2781]

Simon ignoring that 4 in the corner and the 7-6 white dot made my eyes burn 😂

[@stupidas9466]

15:31 "Ahhhhhhh….What is it that i'm missing?" The story of my life, sadly.😢

[@aidanfreeman2932]

36:55 anyone else been screaming about the impossibility of a 1 blue triple in box 4 for like five solid minutes???? And still not seen that logic discovered 🤣🤣🤣😵

[@marajade8425]

I got the first two easy cells then got stuck for such a long time until I embraced my inner Simon and shaded absolutely everything 😂

[@raysouth1952]

Really struggled and failed with that one. Got really messed up with too many colours. Oh well, watching Simon’s great solve eased my frustration.

[@bertbergers9171]

Thank you for the video Simon! You where procrastinating a bit on the sudoku towards the end but I am happy you found the 4 in the corner that gave you the 3 in the corner :) Happy solving!

[@laurasmith2173]

When in doubt, check sudoku. Simon had a 48 pair looking up column 5 at a 38 and 47 cell for a long time.

[@piarittersporn]

Fantastic puzzle.

[@frankjiang1857]

Finished in 60:21. Took me a while to get started, but after I figured out which 11 pairs could go where, it seemed pretty straightforward. Fun puzzle!

[@Mennoo_]

Am I the only one who was hoping for an intro with simon playing 'stairway to heaven' on guitar after seeing the title and clicking on it? I guess Simon's finger were still too cold from golf. Hope the sudoku helped him warm his fingers

[@longwaytotipperary]

Yep also disappointed no stairway to heaven on guitar. 🫤

[@elLooto]

"No Stairway?... Denied!"

[@Anne_Mahoney]

He did give us that song once in another stairway-looking puzzle, but that's probably more than 2 years ago now. It's one of the great classic songs, though, and whenever Simon wants to channel Led Zep, I'm up for it!

[@benketteridge9150]

Shouting at the screen!! Column 5, 48 pair at the bottom clears up the blues in box 2 from 49 minutes.... until 55m 30s !!! Come on Simon. :)

[@lennoxlepage1742]

Just watching Simon enjoying colouring so much that he forgets Sudoku

[@anaayoung9142]

Great puzzle. I started at box 7 but changed to box 5, and got it better. Used you as a help for that, at 16min maybe 😅 Thanks for the sudoku! 😊

[@Rach881101]

46:23 for me. Amazing puzzle!

[@jansteyaert1]

think the simple way at 36:15 is that the top 3 cells in box 4 simply can't be double blue cause they're looking at a blue cage. So you need to put double purple in those cells wich makes the cage in box 4 blue.

[@Swisswavey]

That was a really enjoyable puzzle. I had to break the colours out but that's never a bad thing 😂

[@stangerrits6712]

53:41 yeah, colouring the digits might work. You know what also works? Doing sudoku in a sudoku puzzle 😂

[@jeffreyrosas1784]

At 44:13 r2c3 cannot be green because of the black dot “3x” rule. It sees both blues and both pinks and the 1. It is yellow.

[@traviskuykendall8581]

Regarding starting in the bottom left. I think you missed the fact that purple, blue, and green were all required to be 3 different variations of the 11 cage. You mentioned that there was another “hidden” 11 cage on the diagonal but didn’t fully appreciate those implications. Because there are only 4 variations the 2 other (yellow) 11 cages are required to be the same.

[@srwapo]

29:36, like ten of those minutes where trying to figure out a break in, but I started coloring and it flowed from there.

[@dwdei8815]

Wasn't it Spinal Tap whose stairway went to eleven?

[@tetsi0815]

36:23 I'd argue the simple way of seeing this is to ask the question can R4C1-R4C3. The other color of the blue/purple cage in box 4 has to go somewhere in box 4. After you determined R6C1 is yellow only R4 is left. And the moment you place a blue domino in R4C1-R4C3 R4C4 has no value. So The 11cage must be blue and R4C1-C3 is purple &1.

[@GreenMeansGOF]

At 30:35, the 11 cage in box 4 cannot be purple because then there is not enough room in row 4 for purple.

[@arturslunga4226]

Simon: This one's got purple in it. Me, automatically: Purple is a fruit.

[@arianebarnes]

Singing "That's 4 in the corner, that's 4 in the spotlight, solving all your puzzle..."

[@akhta6762]

Hello !! I like your video !!! Bonjour de l'Alsace !!

[@Anne_Mahoney]

Bienvenu!

[@q51]

simon, get back to 11:59, look what you did (3 purple out of 2 in row7) and continue solving from that point.

[@samueldeandrade8535]

34:25 oh my God, Simon ... Hahahahahaha. Work with pairs!

[@samueldeandrade8535]

36:05 now you got it.

[@samueldeandrade8535]

47:14 then ignores the diagonal. Hahahahahahaha.

[@samueldeandrade8535]

49:06 and ignores the 4 in the corner.

[@aphrodite_6]

regarding the colours used (as a colorblind person), usually the blue and purple are difficult to tell apart, and the yellow and green (if these are all from the same "group" of colours on Svens sudokupad, the lights ones, which for me are the first option in the sudokupad)

[@aphrodite_6]

to be clear, no issues in this video although the purple and blue are similar, it depends on the shades used

[@owenwelsh2906]

For about 10 minutes I was screaming at my screen about the blue purple pair in column 3. If those were purple blue wouldn’t be able to go in box 4

[@darrenhundt]

Maybe "Once" is spanish for eleven and it was going to be called "Just Once!" and then the setter threw in the 10 cage and changed the name to "Not Just Once"?

[@nancieerhard420]

I've noticed that in this puzzle and others, sometimes a colour make a digt difficult to see, as 4 was in r9c1. I don't know if Sven could do ut, but if the software could change the colour of a digit to contrast with the box coliur, it might help.

[@adrianhead6272]

There's four ways of making 11 in two cells (none uses a 1). The geometry allows you to distinguish the four elevens. The dots then allow you to disambiguate them. Completed in 19m46s.

[@JohnRandomness105]

32:30 This took me a few hours, including stupidly breaking the puzzle twice. I also needed a couple hints from the video. This point in the grid, consider block 4's purple-blue cage. If that cage is purple, where do the two purple cells go in row 4?

[@michaelkaster5058]

I must be watching too many of these videos. I missed the 4 in the corner fixing the 4/8 for about as long as Simon in my solve. Had to restart my 11 pairs a few times, but got there in the end :)

[@UGotSerbed]

"Digits cannot repeat on the indicated diagonal" but my man never even had to use that

[@RichSmith77]

? He used that lots of times.

[@LednacekZ]

16:14 for me. once you get the right domino to break in it goes fast. i had to restart because my first try was a complete mess and i got nowhere. so altogether it is a bit over 30 minutes solve.

[@archie1337]

i am always impressed how blind he is to easy visible sudoku logic xD .... the 4 in the corner and others were a massive hint for so long

[@KennyOrr80]

I guess my Logic isn't where it should be. Also, you've made comments that made me think that you look at the puzzles as a sudoku puzzle secondly. So I wonder, is there a book or a workbook that you might recommend that I could learn or it could steer my thinking in the right direction? Thanks

[@jimi02468]

How would you "pencil mark" the difference between two different colors that are for sure different, and two different colors that are potentially the same color?

[@bait6652]

As long as u choose the right PoR coloring was simple (B7 was bad start but it did give digit)....nice design , couldnt fully xolor w/o digit mapping tho. Interesting there are 29 of 36. dominoes in the desig

[@gibbbon]

almost managed this one alone, just had to change my approach from the bottom to from the center like you did, and i didn't spot the green cell at 45:00, still took me 2 hours tho

[@RhiannonAgutter]

“Let me focus on sudoku” he says as he ignores the sudoku that has a 4 staring at half of the box 8 black dot

[@sanctionbuster]

Howdy, Simon. It's freezing here, too!

[@asktheraccoon]

While this is definitely not "just" a 3/5 stars, Simon's solve made it look like a 7/5 stars lol

[@AnnaChiaraBellini]

Sorry not a comment about the puzzle (which was magnificent and took me almost two hours to solve...): in at least the last couple of days there is a low sound mixed in with the audio, feels like a distant alarm, beeping at about 88-90 bpm. Probably 90% of people don't hear it, depending on the quality of their audio system (I can hear it from the speakers attached to my TV, but not from my computer), but it drives me bonkers.....😶 I'm sure it comes from Simon's videos as it stops if I pause the video and it's not on anything else I listen to, KZbin or not... not sure if you can do anything about it. xoxo

[@stangerrits6712]

23:00 I am all for de-chromifying the puzzle. I know it's against your nature Simon, but I think it might help your solve here and there :)

[@six_5000]

I think I broke & restarted this puzzle 11 times…

[@Ardalambdion]

For some reason, I get flashbacks to Phoenix.

[@_-_-Sipita-_-_]

36:30 for me. once is 11 in spanish

[@satriomuhammadalif824]

61:55 solved

[@dannydebryan]

"once" is eleven in Spanish. Just sayin'

[@mrrobotman5299]

Bitterly cold but can still do 7 holes...

[@tonyc360]

It is not maths it is arithmetic !

[@longwaytotipperary]

It’s both!

[@tonyc360]

Maths is trigonometry algebra calculus Working out the remainder from 45 is arithmetic. Primary school or elementary school stuff.

[@LednacekZ]

i wondered for how long is he going to miss the 4 in the bottom left corner.

[@dreweisenzimmer7413]

Where does he find out that the puzzle is a 3 stars out of 5?

[@James_Sinclair]

I published this puzzle on Logic Masters Deutschland, and the average rating given by the users there (who tend to be *very* good at solving puzzles) was 3/5 as of this video, although it's since climbed up to 4/5

[@MohdShamlakh]

I solved it

[@theredstoneengineer6934]

69:29 for me

[@karthick_michigooner7431]

Simon, for a while now I have been genuinely flustered by your refusal to go thru pencil marking, follow thru on a logic or scan for sudoku. I come to this site to learn techniques and use them in future solves ... And while i enjoy genuine genius moments in the break ins etc, it is quite painful experience to watch you make a dediction in a round about manner bcos the answer is quite literally staring at you.... Today for eg .. if C3 box 4 11 cage had been purple, we would have needed 2 pink digits in Box 6 R4 Similarly you pencil mark 48 on a kropki dot which resolves the 38 and 47 in Box 3 and 5... Snd the 4 in C1 resolves the kropki pair... Which gives you the blue and green digits... The 9 found in minute 2 hrlps with yellow domino... Its not pleasant to simply see you find roundabout logic and my concern it is happening with most puzzles in the week... Not sure if it is concerning to you or could you change your solving style to incorprate the micro with the macro?

[@Hehehehsuckerrr]

32:20 yellow is 9/2

[@johnm.runyon3682]

Why ignore the 48 pair in box 8? Has to be deliberate.