More than Luck Needed for this Puzzle

Here's where you can try Fourtuitous by Memeristor: https://tinyurl.com/bdhxcnr5
Normal sudoku rules apply. Digits along the blue lines must have an equal sum within each box they visit. For example, r2c5 + r2c6 = r3c7 = r4c8.

▶ SUDOKU PAD - Our New App ◀ NOW AVAILABLE - 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 it is NOW AVAILABLE at these links:
iOS: https://apps.apple.com/us/app/svens-s...
Steam: https://store.steampowered.com/app/17...
Android: https://play.google.com/store/apps/de...
On Amazon: Search for “SudokuPad”

▶ OUR PATREON PAGE – JOIN THE COMMUNITY, SUPPORT US AND TRY OUR PUZZLE HUNTS◀
  / crackingthecryptic  

▶Our merchandise is all here: ◀
https://cracking-the-cryptic.creator-...

▶ CTC FAN DISCORD SERVER◀
  / discord  

▶ OUR BACK CATALOGUE – ALL CATEGORISED WITH LINKS!◀
https://tinyurl.com/CTCCatalogue

▶ WHY NOT TRY OUR CLASSIC SUDOKU APP? ◀
AppStore: https://apps.apple.com/us/app/classic...
Steam: https://store.steampowered.com/app/11...
Android: https://play.google.com/store/apps/de...

▶ OUR KILLER SUDOKU IS ALSO AVAILABLE◀
AppStore: https://apps.apple.com/us/app/killer-...
Steam: https://store.steampowered.com/app/14...
Android: https://play.google.com/store/apps/de...

▶ YOU CAN ALSO TRY OUR SANDWICH SUDOKU APP ◀
AppStore: https://apps.apple.com/us/app/sandwic...
Steam: https://store.steampowered.com/app/11...
Android: https://play.google.com/store/apps/de...

▶ TRY OUR CHESS SUDOKU APP◀
AppStore: https://apps.apple.com/us/app/chess-s...
Steam: https://store.steampowered.com/app/12...
Android: https://play.google.com/store/apps/de...

▶ HERE’S WHERE YOU CAN TRY OUR MIRACLE SUDOKU APP◀
App Store: https://apps.apple.com/us/app/id15273...
Steam: https://store.steampowered.com/app/13...
Android: https://play.google.com/store/apps/de...

▶ THERMO SUDOKU is available too!◀
AppStore: https://apps.apple.com/us/app/thermo-...
Android: https://play.google.com/store/apps/de...
Steam: https://store.steampowered.com/app/13...
Android: https://play.google.com/store/apps/de...

▶ YOU CAN ALSO TRY OUR ARROW SUDOKU APP ◀ Here are the links:
App Store: https://apps.apple.com/us/app/arrow-s...
Steam: https://store.steampowered.com/app/16...
Android: https://play.google.com/store/apps/de...
The PDF of our book is now available! If you backed the Kickstarter, go to the Jellybeangames email receipt, where there is a button to download the pdf. Delivery of the physical book has now occurred, and we hope to open up the book to further orders soon. The Kickstarter page: https://www.kickstarter.com/projects/...

▶SEND US PUZZLES TO SOLVE/CONTACT US◀
crackingthecryptic@gmail.com
Snailmail: Mark Goodliffe, Box 102, 56 Gloucester Road, London SW7 4UB

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

▶Music◀
Tim McCaskey (Guitar) or Lucy Audrin (Piano) or Riffclown plays Mozart's Sonata no 16 ("Sonata Facile")
▶SOFTWARE◀
Play the puzzle in the video by clicking the link under the video (above). Thanks to Sam Cappleman-Lynes and Sven Neumann for their work.
▶Logo Design◀
Melvyn Mainini

▶Opening Credits Design◀
Joel Blundell

▶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