DSM Qualitraining 2021: Position Sums Sudoku
(Published on 13. January 2021, 08:19 by Realshaggy)
Here is another training puzzle for the upcoming DSM qualifier on 21.-25.01.21. See the text below the grid for more examples. Have fun!
Fill the grid with digits 1 to 9 so that each row, column and 3x3 box contains each digit exactly once.
Digits in the first and second cell from the top and from the left are A and B. Clues outside the grid tell something about A and B: The clue closest to the grid gives the sum of A and B. The sum of the digits on positions A and B from that side is given in the clue in the grey bar.
Position sums is a novelty type we want to introduce this year, so available examples are rare. The concept was introduced by user "donut and chicken" in june 2020 with small additions to above core ruleset. To my knowledge it hasn't been used in tournaments before. Since then, Richard has also made it part of his Sudoku Variant Series. Here are all known examples:
Two-Digit combination Sudoku by Donut and chicken
Position Sums 2 by Donut and chicken
Position Sums 3 by Donut and chicken
Sudoku Variants Series (278) - Position Sums Sudoku by Richard
Solution code: Row 6, column 6.
Comments
on 30. August 2021, 02:30 by Realshaggy
Revised labels.
on 25. February 2021, 16:30 by Realshaggy
Tag added.
on 14. January 2021, 14:38 by Dina
I enjoyed the solution path! The clues are well-chosen.
on 14. January 2021, 08:26 by Realshaggy
Thanks everybody for the kind words! We have some more training puzzles coming over the next few days and hope you will like them just as much.
on 14. January 2021, 03:07 by Willy Wonka
Gorgeous puzzle! Simple but exciting
on 13. January 2021, 22:37 by Storm
Great logic! Thanks Christoph for making it.
on 13. January 2021, 21:22 by marcmees
beautiful. Thanks for sharing.
on 13. January 2021, 19:24 by SirWoezel
Fantastic puzzle!
on 13. January 2021, 19:01 by SudokuExplorer
Beautifully designed puzzle - both visually and logically!
on 13. January 2021, 18:03 by glum_hippo
Das war genial!
Und donut und chicken ist auf diesen Seiten ziemlich vermisst.
on 13. January 2021, 09:41 by cdwg2000
Very nice!
