Tail of the Okapi
(Published on 22. December 2025, 20:41 by glum_hippo)
Normal Sudoku rules apply to the framed 9x9 grid. Each row, column, and 3x3 box thereof must contain the digits 1-9 once each.
Spaces directly outside the grid should be filled with 'Numbered Rooms' clues. A 'Numbered Rooms' clue X indicates that the digit X is N steps away from the clue, where N is the first digit seen inside the grid.
The given clues are X-Sum clues. They give the sum of the first X values seen from their vantage point, where X is the numbered rooms clue (which is counted as well as added to the total).
SudokuPad-Fassung.
Solution code: The marked cells in row 11, columns 4-6, then in column 11, rows 4-6 (a total of 6 numbers, no spaces)
Comments
on 12. January 2026, 09:04 by Playmaker6174
Super fun and quite impressive puzzle!
There's only one tricky bit for me in the middle but thankfully, I figured it out rather quickly as well.
[also it must've been painstakingly annoying to force a unique solution out of this setup x)]
on 11. January 2026, 01:19 by isajo4002
This was amazing!! At first I didn't think it would solve but it all came together quite beautifully. Hopefully you will set more like this
on 24. December 2025, 13:55 by flutchman
Very cool and minimalistic setting. For me, a difficulty bump in the middle, but great puzzle nonetheless.
on 24. December 2025, 09:47 by Exigus
That was incredible. Tricky for sure but it all fell into place eventually. Thanks!
on 23. December 2025, 11:29 by peterkp
Excellent puzzle. One minor detail: I would have described the marked cells as being in Row/Column 13.
I'm aligning myself with the convention that the top row of the sudoku grid is always row 1, and the leftmost column column 1. In this scenario, people are accustomed to seeing 'Row 0 and Row -1' etc.
Thanks for solving. g_h
on 23. December 2025, 04:07 by Elliott810
Brilliant puzzle (and solution code:D)! 'X-sums' and 'Numbered rooms' are my favourite constraints, so it was a joy to see them combined. Thank you:)
