Variant Sudoku 101: Kropki Dots
(Published on 1. December 2025, 01:33 by PhoenixAki)
- Normal sudoku rules apply. Place the digits 1-9 in each row, column, and 3x3 box without repetition.
- Dynamic Fog: The grid is partially covered in grey fog. Placing correct digits will clear the fog, at minimum under that cell and sometimes in other parts of the grid. No guessing is required.
- Kropki Pairs: Digits separated by a black dot must have one digit be double the other (a 2:1 ratio). Digits separated by a white dot must be consecutive.
To increase accessibility to my puzzles, I post solution videos on on my YouTube channel. If you'd like to solve this in your own video, go ahead! But ideally, let me know here or via Discord (same username) if you do ^.^
Solution code: Column 5 from top to bottom (9 digits)
Comments
on 5. January 2026, 22:11 by PhoenixAki
Updated post as part of an effort to improve consistency of rule phrasing and post layout across all my puzzles.
on 4. January 2026, 19:21 by Prezombie
Decent puzzle for learning basic dot patterns, but repetitive in how the logic is so symmetrical on EVERY LAYER.
on 12. December 2025, 07:40 by PhoenixAki
updated sudokupad link to version that removes redundant fog clearing in a cell. Was put in mostly as a cheeky nod towards the cell but eh.
on 2. December 2025, 09:36 by PhoenixAki
Updated puzzle link: missed updating the title with the previous revision (it no longer says level 1 now). Unfortunately means solve count on sudokupad is lost.
on 2. December 2025, 03:49 by TeddieMilo
Made my day! Tq.
on 1. December 2025, 10:36 by superkinkel
Nice easy one to get people introduced to the concept. Then again, classic Sudoku has a pretty big part for the Kropki focus.
on 1. December 2025, 03:01 by PhoenixAki
updated description to reflect only doing 1 intro puzzle for kropki dots. Next entry in the series will instead be a quiz bringing in killer cage knowledge :)
on 1. December 2025, 02:43 by SennyK
Great kropki dots introduction :-)
on 1. December 2025, 02:28 by Cyprane
That was a lot of fun. Very well designed. Never felt lost or stuck.
