Sandwich Sudoku: With A Twist!
328You can try Florian Zellmer's puzzle here:
https://cracking-the-cryptic.web.app/sudoku/gfn7qnjQrm
Instructions for this puzzle: Normal Sudoku rules apply. Clues outside the grid give the sum of the cells "sandwiched" between the 1 and the 9 in the row/column. HOWEVER the count is always taken starting from the 1 ie you must always count rightwards from the 1 in a row and downwards from a 1 in a column. If you hit the edge of the grid before finding the 9 then you loop back to the start of the relevant row/column and continue counting. ie the grid behaves like a torus.
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We sometimes use Duncan's Sudoku Solver, which is available at http://www.littlegogs.com/index.shtml
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▶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