A Sudoku With No Digits. Impossible??!

*** STOP PRESS: NEW MODULAR LINES SUDOKU PACKS ***

We've just released two packs featuring a new sudoku variant: Modular Lines. The base pack is available to everyone FREE here:
https://www.patreon.com/posts/modular-lines-69391377

The Competition Pack, featuring 18 puzzles, is available to our patrons and you can find it by joining us on Patreon for as little as $2/month here:

https://www.patreon.com/crackingthecryptic

We're extremely grateful to the team of setters behind these packs: FullDeck, Missing A Few Cards, JC Godart, jeremydover, Raumplaner and rockratzero. Thank you!!

*** TODAY'S PUZZLE ***
[Apologies for the scheduling error today which resulted in us releasing two videos at the same time. This will teach us for having the temerity to try and take a couple of days off! Hopefully some of you will enjoy this video for an unusual reason - if you go back to June 6, you'll find Mark solved the same puzzle. Many of you have asked how Simon and Mark's styles differ - well now you can see!]

Another sudoku today by the wonderful Joseph Nehme - this one is called Some On Some Off. This puzzle is hard to grade - it depends how quickly you spot the underlying ideas (and whether or not basic sudoku eludes you!). You can play the puzzle at the link below:

https://app.crackingthecryptic.com/sudoku/RTtJntrbQL

Rules:
Normal sudoku rules apply. Along a main diagonal (marked in blue) digits cannot repeat. Digits along an arrow must sum to the digit in that arrow's circle.

*** Our New App Is OUT ***
Our new app is OUT on App Store AND Android!! 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!!

https://apps.apple.com/us/app/cracking-the-cryptic/id1629992934

https://play.google.com/store/apps/details?id=com.StudioGoya.CrackingTheCryptic

The app is coming very soon to Steam as well.

*** Warm & Nerdy Merch ***
https://teespring.com/en-GB/stores/cracking-the-cryptic

▶ Contact Us ◀

Twitter: @Cracking The Cryptic
email: crackingthecryptic@gmail.com

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 ◀

It's OUT on Windows (released yesterday!) via Steam here:
https://store.steampowered.com/app/1706870/Svens_SudokuPad/

You can now input your own classic sudoku puzzles into our software using our new App! The app also comes with 12 handmade puzzles from us and we're also releasing occasional bonus puzzles too. Already available on IOS and Android.

**************************************************************

▶ OUR ARROW SUDOKU APP IS OUT ON ALL PLATFORMS!
Here are the links:
Steam:
https://store.steampowered.com/app/1613680/Arrow_Sudoku/
App Store:
https://apps.apple.com/us/app/arrow-sudoku/id1568407537
Google Play:
https://play.google.com/store/apps/details?id=com.StudioGoya.ArrowSudoku

▶ OUR KILLER SUDOKU APP IS OUT ON ALL PLATFORMS◀
https://apps.apple.com/us/app/killer-sudoku-ctc/id1544165118

https://store.steampowered.com/app/1471910/Killer_Sudoku/
https://play.google.com/store/apps/details?id=com.StudioGoya.KillerSudoku&hl=en_US&gl=US

▶ SIMON REACTION BOARD (!) ◀
With thanks to Andrea for creating this :)
https://simonreacts.avris.it/

▶ CTC FAN DISCORD SERVER◀
https://discord.gg/BbN89j5

NEW: Guide To Our Discord Server:
https://tinyurl.com/CTCDiscordGuide

▶ OUR BACK CATALOGUE – ALL CATEGORISED WITH LINKS!◀
https://tinyurl.com/CTCCatalogue
▶ OUR CHESS SUDOKU APP IS NOW OUT!◀
AppStore: https://apps.apple.com/us/app/chess-sudoku/id1500654482?ls=1
Steam: https://store.steampowered.com/app/1250560/Chess_Sudoku/
Android: https://play.google.com/store/apps/details?id=com.StudioGoya.ChessSudoku&hl=en_US

▶SEND US PUZZLES TO SOLVE/CONTACT US◀
crackingthecryptic@gmail.com

▶FOLLOW US◀
Twitter: #crypticcracking
@crypticcracking
Instagram (for how to solve daily clues from The Times): https://www.instagram.com/crackingthecryptic/?hl=en

▶Logo Design◀
Melvyn Mainini

Видео A Sudoku With No Digits. Impossible??! канала Cracking The Cryptic