-X Sums
(Published on 5. October 2022, 23:23 by JeremyDover)
Thanks to wisteria and Geryon for the test solves...I hope you enjoy!
Rules
Normal sudoku rules apply.
X-Sums: clues outside the grid indicate the sum of the first N digits in the row/column of the clue, where N is the digit placed in the first cell in that direction.
Negators: Each row, column and box contains a negator, which causes the digit in that cell to act as its negative with respect to the X-Sum clues. Each digit will be negated exactly once.
When a negated digit is in an X-Sum range, it is subtracted, rather than added, as part of the sum. A negative index for an X-Sum indicates the sum range should be counted back from the OPPOSITE end of the row/column. Examples are given in https://f-puzzles.com/?id=2ps2azgb.
Solution code: Row 6 followed by column 4 (18 digits, left to right, top to bottom, no spaces/commas):
Comments
on 17. October 2024, 19:04 by JeremyDover
Added Modifier Cells tag
on 11. January 2023, 20:52 by wisty
Wild ruleset! Very fun puzzle, especially once I fully wrapped my head around the negative indexing.
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JeremyDover: Thanks for your comment...so glad you enjoyed!
on 25. October 2022, 19:07 by cdwg2000
Very nice!
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JeremyDover: Thanks so much for your kind words!
on 7. October 2022, 08:32 by Statistica
Sehr hübsch. Danke.
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JeremyDover: Vielen Dank!
on 6. October 2022, 12:05 by farodin64
A funny ruleset and a smooth solution flow, I really like that puzzle. Thx for the fun!
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JeremyDover: Thank you so much for your kind words!
