Normal X-Sum rules apply. The clues outside the grid give the sum of the first N digits, where N is the first digit in that row or column seen by the clue.
Try X-Sum on your choice of:
Solution code: Row 1, column 9
on 7. November 2022, 18:26 by Rollo
Brillant!
on 31. July 2022, 22:53 by Workout9
Beautiful puzzle, nice logic :) thanks
on 21. July 2022, 21:50 by Florian Wortmann
I liked X-Sums as a constraint before solving this puzzle. Now I love it!
on 21. July 2022, 12:02 by Snookerfan
Thank you for this nice puzzle!
on 21. July 2022, 09:52 by Bankey
Fun puzzle. Thanks, @ kuraban :)
on 21. July 2022, 00:58 by Johannes Quack
Brillant puzzle!