1. Irregular 8x8 Sudoku rules apply: fill every row, column, and region with a nonrepeating set of digits 1-8
2. ANTI-KNIGHT! No digits in a Chess knight's distance can be the same
3. Digits along blue Region Sum lines sum to the same value along each segment within a region
4. X-Sums are adjacent to the digit N, and the clue represents the number of cells N across from it
Click the Image to Play
Solution code: Row 7 left to right
on 17. October 2025, 01:35 by dzamie
Nice little puzzle. 8x8s feel weird, which is an unusual sort of challenge, considering it's a smaller grid.
I agree with Snaques that the X-sums rule is written awkwardly. I think I usually see it like:
"X-sums: Clues outside the grid indicate the sum of the first X cells in that direction of the row/column, where X is the number in the cell adjacent to the clue. e.g. "(8) 3 1 4"
on 16. October 2025, 19:41 by Snaques
I would think that the X-sums indicate the sum of N first digits from the clue, but I just can't make sense of this rule:
"the clue represents the number of cells N across from it"
Ho can the clue 20 represent 20 cells across anything in this puzzle?
on 16. October 2025, 10:26 by Fra314
Neat, super fun!