Yggdrasil (Circled X-Sums)
(Published on 6. August 2026, 17:00 by Crusader175)
Normal sudoku rules apply.
Circled X-Sums: Circle one cell in each row, column, and box. Digits may not repeat on circled cells. Clues outside the grid indicate the sum of the first X digits in the corresponding direction, where X is the digit placed in the circled cell in that row or column.
Puzzle Link: SudokuPad
My youtube channel on solving sudoku: Crusader Puzzle
Solution code: Digits in circled cells top to bottom
Comments
on 7. September 2026, 03:22 by emoney1374
Wonderful puzzle!
on 15. August 2026, 15:31 by Agent
Very nice solution path!
on 8. August 2026, 19:41 by SennyK
Wonderful puzzle! :-)
on 8. August 2026, 18:54 by Bankey
Fun twist to the x-sums. Thanks, @ Crusader175 :).
on 8. August 2026, 17:42 by scarfdoku
Wow that was like magic, thanks for the fun puzzle!
on 8. August 2026, 14:50 by wuc
Hard but very clever set 4* to me. Every step a quest for itself. Huge fun thx.
on 8. August 2026, 10:25 by goldpuffle
Excellent puzzle! The ways the rules worked out flowed so nicely!
on 7. August 2026, 20:28 by Miatc
Took me 100 minutes but worth every second, very cool
on 7. August 2026, 18:41 by Arheus
I am SO used to regular X-Sum thinking that I had to restart it twice because I kept hitting dead ends. Once I wrapped my head around the implications, it was smooth sailing. Very enjoyable and challenging!
on 7. August 2026, 13:26 by Dogfood
Pretty tricky but very fun to work out what the constraints mean. Thought I got completely stuck in the endgame but that’s what happens when you make an arithmetic mistake in a puzzle with sum constraints. Once I found that error it was smooth.
on 6. August 2026, 23:56 by mathpesto
Brilliant concept and execution!
on 6. August 2026, 23:36 by BG03
Would agree with Flinty. The solve was extremely smooth. Once I wrapped my head around the mechanics, it was just following one clue after the other. 3.5*/100%
on 6. August 2026, 22:39 by Piatato
Great!
on 6. August 2026, 17:25 by Flinty
Wonderful constraint, and excellent puzzle! :) 3.5*/5 for me.
