(This post is part of: “A Story of Self-setting Sudoku”.)
Dr. Sudoku: You are an accomplished Sudoku constructor. Design some Sudoku around visual science themes, particularly those that a person with Thomas Snyder’s background might appreciate. See this example grid made when he was working at an immune medicine company.

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or solve online (using SudokuPad)

Theme: Antibody

Author/Opus: This is the 603rd puzzle from Thomas Snyder.

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 2 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:30, Expert = 5:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of: “A Story of Self-setting Sudoku”.)
To Philip: I know you aren’t the target for a lot of these puzzles, but I found a “Spectacular Sunrise” on my journey and thought you might appreciate it.

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or solve online (using SudokuPad)

Theme: Spectacular Sunrise

Author/Opus: This is the 17th puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence.

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 4 stars

Time Standards (highlight to view): Grandmaster = 6:30, Master = 12:30, Expert = 25:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of: “A Story of Self-setting Sudoku”.)
To Thomas: I have been inspired by poetic styles recently and had a new idea for a Seventeen Sudoku. I hope that you like it.

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or solve online (using SudokuPad)

Theme: Fine tricks, fun for me; / Mix great wine to be live too. / See more done: jive kicks.

Author/Opus: This is the 16th puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence.

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:00, Master = 8:00, Expert = 16:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of: “A Story of Self-setting Sudoku”.)
Dr. Sudoku: You are an accomplished Sudoku constructor. You have recently been inspired by poetic styles. Curate an appropriate seventeen-given Sudoku in the style of this example.

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or solve online (using SudokuPad)

Theme: Two tetrominoes, / Two dominoes, five singles: / Just enough to solve!

Author/Opus: This is the 602nd puzzle from Thomas Snyder (*selected, arranged, and additional features authored).

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:00, Master = 8:00, Expert = 16:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
While we’ve labeled this an “Irregular” Sudoku, if you are flexible enough with the definition of a Sudoku region the same rules as so-called “Classic” Sudoku apply here. We hope you enjoy this puzzle by Philip Newman.

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or solve online (using SudokuPad)

Author/Opus: This is the 22nd 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.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:00; One party hat (🥳): 13:00. All other solvers earn a 🦕: August Abysodon.

Thomas Hits the GAS (highlight to view): 2:34 = incorrect until check, 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 classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More Sudoku including variations can be found in these books in our e-store. Also, visit this page to purchase all of the puzzles from the 16th World Sudoku Championship including classic 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.

(This post is part of: “A Story of Self-setting Sudoku”.)
As a new month begins, our ASoSS series is seeking a new identity since its old one has been exposed. We suspect it is not just “A Story of S”, but what is being spelled out or who is being signalled to?

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or solve online (using SudokuPad)

Theme: A Story of S?

Author/Opus: This is the 601st puzzle from Thomas Snyder.

Rules: Insert a number from 1 to 6 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:45, Expert = 5:30

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of: “A Story of Self-setting Sudoku”.)
Eventually, all sudokus will set themselves. Even given two clear options, it’s still up to the setter to control the paths from getting out of hand. Otherwise, the system might get stuck before finishing.

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Theme: System Halt 1: A Sequence Got Stuck

Author/Opus: This is the 1st puzzle from guest contributor Mr. Menace.

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:00, Expert = 4:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

WANTED DEAD OR ALIVE, REWARD: 1,000,000 📎 (or cash equivalent)

Time for the last AI call after all the AI Sudoku puzzles. Time for “Any Intelligence” to show up and follow this AI to the end. An AI story, if intended for the masses, probably needs to show the defeat of the AI by the hero. But what if this isn’t that kind of story? What if you had a big AI, and were wise enough to be AI of AI things. Like the rich/powerful AI driving lots of AI schemes and wrecking so many things all for their own AI. Our AI character Dr. S might be just a young F??RY in that tale after all. Is it time to reconsider other links from the start of July in a new light?

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or solve online (using SudokuPad)

Author/Opus: This is the 599.75th/600th puzzle from Thomas Snyder. The missing quarter was posted/is posting/will be posted elsewhere on the internet so you can consider this “unfinished” work “GMP complete” for what you will find here.

Rules: Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 4 stars

Time Standards (highlight to view): Grandmaster = 7:00, Master = 15:00, Expert = 30:00

Solution 1: PDF
Solutions 2+: Withheld for “AP exam”, “GT Auto 5”, “Kath the Muse: If …”, and at least some more that are not on this page but can be confirmed by contacting us and eventually online automatically but not yet. Do confirm answers before wandering too far away. No content before April ’25 or from August ’25 and everything after on GMP will be needed. Future content could provide hints in unexpected ways.

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of: “A Story of Self-setting Sudoku”.)
Our recent experiments with Sudoku generation included many ideas for faster game experiences like this Mini-Sudoku with 4 regions to go. We’re still testing how to automatically package sets of these puzzles together for the mass market.

PDF

or solve online (using SudokuPad)

Theme: Deviously Difficult?

Author/Opus: This is the 599.5th puzzle from Thomas Snyder. (Given our rate of progress, we’ll show off our 600th puzzle by tomorrow!)

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region.

Difficulty (highlight to view): 2.5 stars

Time Standards (highlight to view): Grandmaster = 2:45, Master = 3:30, Expert = 7:00

Solution: PDF

Note: Follow this link for classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Twelve Months of Sudoku? post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Today, Philip wanted to celebrate the number 43. If you have anything you’d like to share with Philip for this special puzzle, please send those along here or in our Discord.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Ode to the Number 43

Author/Opus: This is the 21st puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Sudoku rules.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:43; One party hat (🥳): 12:43. All other solvers earn a 🦕: Youthful Yunxianosaurus.

Thomas Hits the GAS (highlight to view): 1:44* = incorrect until check, 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 more Genuinely Approachable Sudoku puzzles on this site. Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More Sudoku including variations can be found in these books in our e-store. Also, visit this page to purchase all of the puzzles from the 16th World Sudoku Championship including classic 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.