X-Sums Sandwich Sudoku
(Published on 12. October 2020, 09:37 by RobK)
Rules: Normal Sudoku rules apply. Also, numbers/dashes outside the grid mean that the sum of the digits between 1 and 9 in that row/column (Sandwich clues) equals the sum of the first 'n' digits in that row/column from that direction where 'n' is the first digit of that row/column (X-Sum clues). One of these sum totals is given. The relevant 'n' is different in each of the X-Sum clues.
Good luck and have fun!
Solution code: The first row of the finished grid, from left to right with no spaces or commas, then the final row of the finished grid, also left to right. So 18 digits in total.
Solved by henter, marcmees, dhansik, NikolaZ, rimodech, Julianl, geronimo92, SudokuExplorer, polar, h0_0man
Comments
on 24. April 2021, 15:11 by polar
Really enjoyed this puzzle, thanks!
on 31. October 2020, 18:29 by RobK
Thanks, SudokuExplorer!
on 20. October 2020, 18:45 by SudokuExplorer
Lovely puzzle! The fact that the first digit of the x-sum clues are different provided some nice logic. I really enjoyed the hybrid x-sum/sandwich clues :-)
on 13. October 2020, 10:42 by RobK
Thanks, Marc. Glad you enjoyed it!
on 12. October 2020, 16:48 by marcmees
had to make the puzzle twice before I saw the light. very nice logic ... as a first puzzle, wow ... fantastic. thanks
