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    • Slow Thermo Sudoku by Philip Newman

    (This post is part of the Genuinely Approachable Sudoku (GAS) series.)
    Live, from SudokuCon 2026, it’s a Slow Thermo!

    Slow Thermo-Sudoku by Philip Newman

    PDF

    or solve online (using SudokuPad)

    Also enjoy a bonus earlier version of this puzzle that is more difficult: PDF

    or solve bonus online (using SudokuPad)

    Theme: SudokuCon ’26

    Author/Opus: This is the 141st 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). Some thermometer shapes are in the grid; numbers must either increase or stay the same in each cell going from the round bulb to the flat end. (For instance, a thermometer might contain the sequence 233577888 in that order.)

    GAS Time Standards (highlight to view): Two party hats (🎩🥳): 9:00; One party hat (🥳): 20:00. All other solvers earn a 🦕: Fictitious Fushanosaurus.

    Thomas Hits the GAS (highlight to view): 2:06, with SudokuPad replay file and 3:42 for bonus with replay as well; shared as a download for now (requires loading via settings menu with improvements expected before people should use this regularly).

    Solution: PDF and for bonus; 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.

    Posted in Thermo-Sudoku, Puzzle by , 08/1/26 12:00 AM
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