Super Fiendish Classic Sudoku

Martin says this puzzle is super fiendish. Let's see! Try it here: https://cracking-the-cryptic.web.app/...

▶ OUR CHESS SUDOKU APP IS NOW OUT!◀
https://store.steampowered.com/app/12...

▶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...

▶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...
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@crypticcracking
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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!

▶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