(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
We’re huge fans of this variation that very closely resembles tradition Snyder Notation (except for the cross-region marks). Can you solve this near-classic that is a quite fun puzzle?

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 18th puzzle from Bill Murphy, 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). Also, the numbers given on the edges between cells must belong to one of those two adjacent cells.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 9:00; One party hat (🥳): 18:00. All other solvers earn a 🦕: Dryer Linheraptor.

Thomas Hits the GAS (highlight to view): 5:32 where, despite these being like TS’ normal notation, not being able to cross out used clues / having circles in SudokuPad really impacted midgame, 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 and solving video with explanation 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.