Kropki Pairs Sudoku by Philip Newman
(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
This antisymmetric pattern must hide some matter and anti-matter tricks within it given how the black and white dots work together.

or solve online (using SudokuPad)
Theme: Interacting Galopkis
Author/Opus: This is the 53rd puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS) team.
Rules: Standard Sudoku rules (insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region). If a white circle is given between two adjacent cells, then the two numbers in those cells must differ by 1. If a black circle is given between two adjacent cells, then the two numbers must have a ratio of 2. Pairs of cells without circles can have any relationship.
GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:00; One party hat (🥳): 13:00. All other solvers earn a 🦕: Misspelled Maggiarosaurus.
Thomas Hits the GAS (highlight to view): 3:41, with SudokuPad replay file shared as a download for now (requires loading via settings menu with improvements expected before people should use this regularly).
Solution: PDF; solving video with explanation to be added later from GAS team.
Note: Follow this link for other less common variations of Sudoku.
Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Daily GAS discussion post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.
