Indexed N-Sums Sudoku
(Published on 22. October 2021, 15:56 by SenatorGronk)
- Standard sudoku rules apply
- Clues on the outside of the grid equal the sum of the first N digits in the row/column.
- To find N, take the value of the first cell in the row/column -- let's call it X.
- The value of N for that row/col is the value of the Xth cell in Column 1/Row 1.
The image below shows how the clues work.
For example, R4C1 is an 8, so we look in the 8th cell of Column 1 to see how many of the leftmost cells in Row 4 sum to the given clue.
CTC
Solution code: Column 5 + Column 8 (18 digits)
Comments
on 30. November 2021, 09:18 by Aspartagcus
Very enjoyable, despite me always having trouble with indexing. Well done! :)
on 29. October 2021, 21:20 by uvo_mod
Label "Online Solving Tool" ergänzt.
on 26. October 2021, 20:38 by DJdoku
Wonderful puzzle! Deserves more solves too.
on 25. October 2021, 18:15 by SenatorGronk
Changing name from Indexed X-Sums to Indexed N-Sums after learning that X-Sums has a more specific meaning and that this puzzle is part of a broader set of "N-Sum" puzzles.
on 23. October 2021, 12:20 by marcmees
nice idea. smooth solve. thanks.
on 23. October 2021, 01:02 by TimE
Very nice!
on 22. October 2021, 20:04 by kolot
Great puzzle!
on 22. October 2021, 16:57 by PixelPlucker
Excellent! Very smooth and enjoyable logic. A pleasure to solve.
