A Brand New Trick For Very Hard Sudoku Puzzles

Thanks to Derek Neal for this extremely interesting new method he calls "The Slot Machine". You can try the puzzle shown in the video here:

https://app.crackingthecryptic.com/RT...

This puzzle is taken from the Brainium Sudoku app and you can find out more about the app at these links:

App Store
https://apps.apple.com/us/app/sudoku/...

Google Play
https://play.google.com/store/apps/de...

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▶SOFTWARE◀
We sometimes use Duncan's Sudoku Solver, which is available at http://www.littlegogs.com/index.shtml
Or our own software, which you can access by clicking on the links under the video.

▶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 eleven-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