Between 1&9 Sudoku AKA "Sandwich Sudoku"!

Simon takes a look at this outstanding puzzle created by one of our viewers, thank you Isaac Resnikoff. We're also delighted to note that Alex Bellos, author of some brilliant puzzle books (like Alex's Adventures In Numberland), has written an article about our channel and this Sudoku variant! We will link the article here but it should be available on The Guardian website on 6 May 2019.

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▶SOFTWARE◀
We mainly use Duncan's Sudoku Solver, which is available at http://www.littlegogs.com/index.shtml

▶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

Видео Between 1&9 Sudoku AKA "Sandwich Sudoku"! канала Cracking The Cryptic