(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
For those in the US who want to purchase a Black Friday Sudoku, consider this buy one get one deal guaranteed to fuel the brain!

PDF

or solve online (using SudokuPad)

Theme: Buy One, Get One

Author/Opus: This is the 80th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: This puzzle contains two overlapping 9×9 classic Sudoku grids that will share the same numbers in the overlapping spaces. Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region of either Sudoku grid.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:00; One party hat (🥳): 13:00. All other solvers earn a 🦕: bulky Bellusaurus.

Thomas Hits the GAS (highlight to view): 2:14, 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.