Bookends (XY-Sums)
(Published on 12. September 2022, 11:12 by thoughtbyte)
Normal Sudoku rules apply. Additionally:
XY-Sums: clues outside the grid show the sum of the first X digits and last Y digits from that direction combined, where X is the first digit and Y is the last digit.
I'm not sure if this twist on X-Sums has been used before, please let me know if you are aware of prior puzzles with a similar constraint.
F-Puzzles: https://f-puzzles.com/?id=2ok7yvcf
CTC: https://tinyurl.com/firstlastxsumsc
Solution code: Column 5.
Comments
on 12. September 2022, 17:43 by thoughtbyte
Thank you for the feedback all, I'm glad you enjoyed this one. It was fun to play around with this twist on X-sums and I hope to do more with it.
on 12. September 2022, 17:35 by ern3301
What a nice puzzle!
on 12. September 2022, 17:30 by thoughtbyte
Rule clarification.
on 12. September 2022, 15:24 by Snookerfan
Very nice puzzle, thank you!
on 12. September 2022, 12:46 by Piatato
Ah, it took me a solid five minutes to realize that you meant the combined sum of those digits. I couldn’t understand how this puzzle didn’t just immediately break XD
Very nice and smooth puzzle!
on 12. September 2022, 11:33 by Steven R
A smooth, satisfying solve. Thanks!
