An Utterly Brilliant Tribute Puzzle

Alexander Rappa's latest puzzle almost defeats Simon... you can try it here:
https://cracking-the-cryptic.web.app/sudoku/NNL8HBpHLp

Rules:
Normal sudoku rules apply. The circles given in the grid are the centers of pointsymmetric "galaxies", which function as cages for the Killer Sudoku. The numbers inside the circles indicate the sum of the digits in the cages. In addition, each cage is a "thermometer". Along thermometers, digits must increase from the bulb end, but the bulb end is not given. The cages/thermometers cannnot "branch". Thermometers are also symmetrical about their circles. The digits in a cage/thermometer may not repeat. Not every cell in the grid has to be part of a galaxy.

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We have recently RELEASED our second Sudoku Puzzle Hunt. Patrons of the channel can download it at our patreon page (link below).

If you are NOT a patron of the channel on Patreon and would like to get a taster of the hunt then you can download the preamble (which consists of two letters: one from Angus MacGuffin and one from ______; together with the notes about the puzzles which seem to have been written by a very unpleasant character indeed) and try the first puzzle at the link below.
https://www.patreon.com/posts/our-new-sudoku-38675803

You can become a patron here:
https://www.patreon.com/crackingthecryptic

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Our Chess Sudoku App has just been updated to include lots of Queen Sudoku puzzles! Do update your app to access these puzzles :)

Our Sandwich Sudoku App has just been updated to allow users to transfer data between different devices! This update is coming later this month for Classic Sudoku, Chess Sudoku and Thermo Sudoku!

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▶ OUR NEW THERMO SUDOKU APP IS OUT!◀
AppStore: https://apps.apple.com/us/app/thermo-sudoku/id1513994223
Android: https://play.google.com/store/apps/details?id=com.StudioGoya.ThermoSudoku
Steam: https://store.steampowered.com/app/1316390/Thermo_Sudoku/

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▶ 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

▶TRY OUR CLASSIC SUDOKU APP◀
AppStore: https://apps.apple.com/us/app/classic-sudoku/id1488838275?ls=1
Steam: https://store.steampowered.com/app/1188330/Classic_Sudoku/
Android: https://play.google.com/store/apps/details?id=com.StudioGoya.ClassicSudoku&hl=en_US

▶TRY OUR SANDWICH SUDOKU APP◀
AppStore: https://apps.apple.com/us/app/sandwich-sudoku/id1476116705?ls=1
Steam: https://store.steampowered.com/app/1117310/Sandwich_Sudoku/
Android: https://play.google.com/store/apps/details?id=com.StudioGoya.SandwichSudoku

▶SUPPORT US + ACCESS EXCLUSIVE "CRACKING THE CRYPTIC" PUZZLES/VIDEOS◀
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▶SEND US PUZZLES TO SOLVE/CONTACT US◀
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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

Видео An Utterly Brilliant Tribute Puzzle канала Cracking The Cryptic