(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
When it comes to safely packing numbers into a grid, some might consider the 28th and 29th constraints (the diagonal bands) last since they seem “extra”. How will your filling of this Diagonal Sudoku go?

PDF

or solve online (using SudokuPad)

Theme: Safety Last

Author/Opus: This is the 78th 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, numbers cannot repeat on the marked diagonals.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 8:30; One party hat (🥳): 16:00. All other solvers earn a 🦕: Farewelling Ferganasaurus.

Thomas Hits the GAS (highlight to view): 2:24, 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.