Can You Colour? Yes You Can!

** TODAY'S PUZZLE **
Today we try this heavily-touted puzzle from Crusader175 called Huey, Dewey, Louie. This is an utterly gorgeous sudoku that will have you shaking your head in admiration.
You can try it at the link below:
app.crackingthecryptic.com/su...
Rules:
Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. Divide the digits 1-9 into three different groups. Digits with the same letter must be in the same group. Two digits from the same group may not touch orthogonally.
** A New Series Of Videos On Patreon **
Continuing their series of collaborative solves, Simon & Mark have recorded a solve of this outstanding puzzle Vignettes by zetamath. We'll release this on Patreon soon but give it a go in the meantime and let us know how you get on:
app.crackingthecryptic.com/su...
Join us on Patreon to watch the video for as little as $2/month here:
/ crackingthecryptic
** GET OUR NEW FREE APP AND/OR WATCH US STREAM IT **
To celebrate achieving 500k subscribers, we're trying to say thank you in a couple of ways.
We've released a FREE app full of handmade puzzles - 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 the first three episodes here:
• Simon & Mark Solve Sud...
• Simon & Mark Solve Sud...
• Simon & Mark Solve Sud...
• Simon & Mark Solve Sud...
We'll be streaming the next episode soon.
We're also able to offer our Cracking The Cryptic Greatest Hits book at a discount for a limited period. (Books are now in very short supply).
The coupon code is “500SUBS” and it can be redeemed at checkout here:
coffeebean.games/ctc-greatest...
** Join Our Sudoku Club On Patreon **
We released September's Monthly Reward. It's a sequence of Linked Sudokus and we've already had over two thousand correct solutions! Submit your entry by 20 September for a chance to win a prize!
Join us on Patreon for as little as $2/month to try it out here:
/ crackingthecryptic
** Our New App Is OUT **
Our new app is OUT on App Store AND Android AND ON PC (via Steam)!!
We've completely revamped the interface. Now you download the basic app free and you can choose to download additional content. So there's a FREE pack of puzzles by Prasanna Seshadri and a paid pack: DOMINO SUDOKU!!! Prasanna's free pack includes one puzzle for each variant of our existing apps (so there's a killer sudoku, a miracle sudoku, a thermo sudoku, etc). Domino Sudoku is a pack of 100 handmade puzzles (40 on launch, 5 added each month for a year) by some of the best constructors in the World: Phistomefel, clover, jovi_al, Christoph Seeliger, Qodec, Sam Cappleman-Lynes and Richard Stolk have all contributed sudokus!!
apps.apple.com/us/app/crackin...
play.google.com/store/apps/de...
store.steampowered.com/app/20...
▶ Contact Us ◀
Twitter: @Cracking The Cryptic
email: [e-mail]
Our PO Box address:
Simon Anthony & Mark Goodliffe
Box 102
56 Gloucester Road
London
SW7 4UB
(Please note to use our real names rather than 'Cracking The Cryptic'.)
▶ SUDOKU PAD - Our New App ◀
You can input classic sudoku puzzles into our software. The app also comes with 12 handmade puzzles from us:
iOS:
apps.apple.com/us/app/svens-s...
Steam: store.steampowered.com/app/17...
Android:
play.google.com/store/apps/de...
ALSO on Amazon: Search for “SudokuPad”
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[@alarictaqiarentza9451]

Hi Simon! Thank you very much for featuring another of my puzzle and for the kind comment! I'm very happy to see this one on the channel. Excellent solve!

[@PvPSteve]

It makes me happy that Simon takes so much care with regards to colour blind viewers. I'm not personally colour blind, but the thought for inclusion is lovely!!!

[@chesshead]

The more obvious break-in was to note that A numbers pertained to Andre Agassi (1 Olympic gold, 5 syllables in name, 8 Grand Slams), B to Bill Bryson (3 syllables in name, 4 children, 9 letters in birthplace (Des Moines)), and C to Christopher Columbus (2 children, 6 syllables in name, 7 letters in resting place (Seville)). Your break-in was also good.

[@f.b.jeffers0n]

These videos of you just painting the grid to then fill it in in only a few minutes are a special kind of beautiful...

[@blahfasel2000]

@

[@zetamathdoespuzzles]

This was an absurdly beautiful puzzle, and I'm delighted to see it here!

[@KrisCadwell]

26:04

[@Allenonymous]

Everyone’s colorblindness is different. So everyone is going to have trouble with different sets of colors.

[@Aliessil]

41:36

[@Allenonymous]

TL;DR from my last comment…

[@inspiringsand123]

Rules:

[@rookie3k]

I love watching you solve puzzles like this where you have to color the whole grid to start and then it just fills in at the end. Its so satisfying.

[@alieutier]

First time solving one of these on my own! So proud :) I made the central arrows do a lot of work, which meant I actually didn't need the arrows in boxes 3 and 7 to complete the puzzle in the end.

[@pjbrady47]

It's a great puzzle. Wish I could have solved it! :) I spent 2 hours getting the coloring and completely failed to work the arrows to get the other digits. I'm glad I tried it, and Simon is right, the logic to color it is really nice.

[@renevillarreall.r.3503]

Brilliant as always Simon! Thanks for putting out these videos

[@77kaczka77]

Rotation symmetry axis is in the third dimension i.e. orthogonal to the grid, placed in the middle, and therefore seen as a point, not a line. But never mind. I love your logic show very much.

[@Raven-Creations]

Pedant's corner: if you rotated the grid about that axis, cells on the axis wouldn't move, and R1C5 would flip to R5C9, not R9C5 like you imagined. If you rotate a plane within a plane (which is what you were trying to describe), you are rotating about an axis which comes out of the screen, and passes through the centre of rotation in R5C5.

[@Waggles1123]

Just to chime in, you can actually define each digit in the grid without getting into the math of the arrows. if you define the blue digits in box 2 as some X/Y/Z in some order, and the grey digits in box 8 as some J/K/L in some order, you can unwind the two into filling in the whole grid with X/Y/Z and J/K/L (on top of the 2s, the orange-greens and the orange-reds) before getting into what size any of the digits are.

[@warren_r]

I needed just under an hour to finish this one. Quite a challenging puzzle until you figure out how to ask the right questions. Super cool.

[@gustavofb3]

This puzzle had me really amazed, took me 80 minutes of joy