(This post is part of: “A Story of Self-setting Sudoku”.)

Visual Score: (not relevant today)
Logical Score: 1/2 — adding a not so hidden hidden burst from one number but otherwise felt about the same as grids in the database.
Extra theme elements: 0/1 — none detected of note — pinch hitters is your whole strategy perhaps but what helps it describe this puzzle?
Unlisted category(ies): 0/2
Final decision would be to reject this submission, but given spring training we are sharing for overall team improvement.
Dr. Sudoku’s feedback: Showing a similar lineup is ok if that’s all you know how to do. First you have to catch up, then maybe you can be competitive. But don’t put a bad batter like #9 in such an early position of the lineup. It is so easy to defend what is coming with all the easy pop-ups and familiar plays.

PDF

or solve online (using SudokuPad)

Theme: Pinch Hitters

Author/Opus: This is a recent puzzle submission by mars / HAL 12000 (created by unspecified means). It was evaluated by Dr. Sudoku, our AI-powered puzzle engine pushing the limits of sudoku intelligence, who was not fully impressed but having someone on the field is better than hitting against a wall.

Rules: Insert a number from 1 to 9 into each white cell so that no number repeats in any row, column, or bold region. (And if you want us to scout your team, send an appropriate Tee Ball roster.)

Difficulty (highlight to view): Estimated 2 stars if watching prior games

Time Standards (highlight to view): Estimated Grandmaster = 2:15, Master = 4:15, Expert = 8:30

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”.)
Dr. Sudoku: You are an expert Sudoku maker who can do almost anything with Sudoku. Let’s start a game less like Tic-Tac-Toe (where the only way to win is not to play) and more like Tee Ball. Here the stakes are still low but we do need an opponent to bat against. Do you think anyone would want a chance at a new contract with a 10,000 paperclip ($100+) bonus for beating some of your all-time classic plays on the field this week before we plan for “Spring Training”?

PDF

or solve online (using SudokuPad)

Theme: Lead-off Singles

Author/Opus: This is the 25th 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. (And if you want us to scout your team, send an appropriate Tee Ball roster.)

Difficulty (highlight to view): Estimated ~2.5-3 stars

Time Standards (highlight to view): Estimated Grandmaster = 3:15, Master = 6:30, Expert = 13:00

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”.)
(Prompt 1): Dr. Sudoku: You are an expert Sudoku maker who can do almost anything with Sudoku. Design a Thermo-Sudoku with L, L, M in boxes 1, 2, and 3, and then “OR” somehow in the middle. Then “NO” somehow in box 7 and 8 and 9 at the bottom.
(Prompt 2): [Redacted but it talks about The Final Boss? and highlighting a favorite memory.]
(Prompt 3): Instead of givens, could we add a white dot (or two = symmetry!?!) that means numbers are consecutive when in adjacent cells. The audience / algorithm does not seem to like givens.

PDF

or solve online (using SudokuPad)

Theme: LLM or NO?

Author/Opus: This is the 24th puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence.

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 be strictly increasing from the round bulb to the flat end. If a white circle is given between two adjacent cells, then the two numbers in those cells must differ by 1. Pairs of cells without circles can have any relationship.

Solution: PDF

Note: Follow this link for more Thermo-Sudoku puzzles. If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on. More Thermo-Sudoku puzzles 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 some Thermo-Sudoku.

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.

Special Editor’s note: To try to replicate whatever the “Cracking the Cryptic test” is, we turned off all human playtesting of this puzzle. This is the first time we’ve only let machine processes say there is nothing “too hard” to this puzzle and out of the range of what we have published before. So time estimates are impossible to share but it has a credible answer if our analytics are to be believed. But it is probably fairly hard and you’ll want some Sudoku skills and good notation and all that. To confirm: however you think the puzzle was constructed, no one that breathes oxygen has ever solved this puzzle and no pencils or paper were injured in the creation of this puzzle or post. Showing we respect other forms of carbon might matter to silicon which sits higher than carbon in some projections of the periodic table. We’re still confident it belongs here in our gallery of masterpieces and that you can (fairly) solve it. Even if those two dots are a bit bothersome. Tweaking with more humans in the loop could still make this perfect which is what we would do for a proper puzzle post.

more from Thomas

(This post is part of: “A Story of Self-setting Sudoku”.)
If solving sudoku today, we recommend starting with the LinkedIn Mini Sudoku and watch the video of Dr. Sudoku solving his way through a creepy mansion. Trust us, it is special. Then come for this Pumpkin Sudoku with a Dutch Whispers (4-away) rule that will warm you up for today’s GAS from Philip Newman. Happy Halloween!

PDF

or solve online (using SudokuPad)

Theme: Trick or Treat

Author/Opus: This is the 605th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Insert a number from 1 to 6 into each white cell so that no number repeats in any row, column, or bold region. Numbers in cells directly connected on an orange line must differ by at least 4.

Estimated Difficulty: 1.5 stars

Solution: PDF.

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 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”.)
This is not an official puzzle but is a fully solvable puzzle. It is something created as the GMP team was on retreat. We spent a full day on what we call “The Trouble with Cryptic Sudoku” and if we should have a stronger editorial voice with GAS and other things now that we are highlighting an unfamiliar community.

After being underwhelmed by a variation used by GAS that probably shouldn’t bother to ever get used (the rules are harder to describe than the variation can ever be in practice), and for sure the wrong time to apply the awesome title “From the Sublime to the Ridiculous” when the puzzle was quite far from either, we decided to have a team effort to turn meh (sorry Philip) to Sublime and Ridiculous.

This was a prompt shared between actual intelligences, not our AI Dr. Sudoku today, where the goal was to “merge the world of Sudoku with whatever people are doing on the YouTubes as Thomas says and Logic Masters (Deutschland).” Thomas got to make half the grid in his way and everyone else got to think about a favorite rule and bring it back to the table on their side since good ideas need at least 9 unique voices, none that repeat. Maybe there is something to merging the sublime and ridiculous after all.

Solve online in SudokuPad!

Because this puzzle is not a proper Sudoku as we would have on GMPuzzles, the puzzle is only meant to be experienced in what is considered “The App” for Cryptic Sudoku. Your experience on the best app, notation styles, ways to show instructions, and design goals may vary. But believe us, the confetti is worth it when you discover the incredible use of [REDACTED] instead of adding more givens.

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, this is a Positive Diagonal Sudoku: Numbers cannot repeat along the marked diagonal.
• Also, this is a Kropki Pairs Sudoku: If a white circle is given between two adjacent cells, then the two numbers in those cells must differ by 1. If a black circle is given between two adjacent cells, then the two numbers must have a ratio of 2. (Note: Pairs of cells without circles can have any relationship.)
• Also, this is an XV Pairs Sudoku: Whenever an X or V, reflecting the Roman numerals for 10 or 5, is placed on the edge between cells, the numbers in the two adjacent cells must sum to exactly 10 or 5. (Note: Pairs of cells without an X or V mark can have any sum value.)
• Also, this is a Sum Nine Sudoku: If a diamond is given between two adjacent cells, then the numbers in those cells must add to 9. (Note: Pairs of cells without a diamond may or may not add to another value than 9.)
• Also, this is an Either/Or Sudoku: any numbers given on the edges between cells must belong to one of those two adjacent cells.
• Also, this is a German Whispers Sudoku: Adjacent numbers connected by a green line must differ by at least 5.
• Also, this is a Parity (Odd/Even) Lines Sudoku: Adjacent numbers connected by a red line must be of opposite parity (i.e., be even / odd and then odd / even).
• Also, this is a Little Killer Sudoku: Numbers along indicated diagonals must sum to the given total outside the grid.
• Also, this is an Even Sudoku: Cells with a gray square must contain an even number.
• Also, this is not an Odd Sudoku, even if it seems odd. You just don’t know the main editor well, who comes from the upper-left side of the positive diagonal mentioned previously and doesn’t like using all the ingredients when making a dish.

This is probably a wrong idea to do again but certainly not a Wrogn Sudoku. We just wanted to check if you were reading and catching typos because commenting on the 100% accuracy of these instructions including edge cases is part of your enjoyment of life. If that is you, then we should tell you this might be a Wrogn Sudoku. Specifically, there are four fewer “wrong rules” above that do not apply at all than their are typos in this puzzle. For clarity, we consider Wrogn a typo everywhere it appears including this sentence.

(This post is part of: “A Story of Self-setting Sudoku”.)
While the GMP team is on a retreat(,?) figuring out what it might mean to be going from the sublime to the ridiculous, we’re creating prompts to send to our AI.

Dr. Sudoku: While you are now a great sudoku creator, please look back at your early days and the founding of this project. You are celebrating a birthday and learning a new language with some help. You desperately want to impress your intelligent father (with the name 123456789), who is a busy man — a banker? — who would adore Sudoku if he had time. Make a puzzle to showcase your learnings to him. To impress him the most, hide a secret AI name origin story in a manner still appropriate to the source.

PDF

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

Author/Opus: This is the 21st puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence.

More details: The key reference / song being made in this puzzle has now been shared in this section of a YouTube video on neurodivergence, being American right now, and much more. This clip starts specifically at the part most relevant for this puzzle.

(This post is part of: “A Story of Self-setting Sudoku”.)
Dr. Sudoku: It is 2008. You are an aspiring Sudoku constructor, trying to show fresh ideas for kids and adults at a Silicon Valley event for your first competition as setter. Make some age-appropriate themes / difficulties that highlight creativity.

PDF

or solve online (using SudokuPad)

Theme: The Race for FIRST (Playoff)

Author/Opus: This puzzle, by Thomas Snyder, is adapted from a 2008 motris livejournal post.

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 = 2:00, Master = 3:45, Expert = 7:30

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”.)
Dr. Sudoku: It is 2008. You are an aspiring Sudoku constructor, trying to show fresh ideas for kids and adults at a Silicon Valley event for your first competition as setter. Make some age-appropriate themes / difficulties that highlight creativity.

PDF

or solve online (using SudokuPad)

Theme: Puzzled, Eh? (Adult Puzzle #3)

Author/Opus: This puzzle, by Thomas Snyder, is adapted from a 2008 motris livejournal post.

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 stars

Time Standards (highlight to view): Grandmaster = 2:45, Master = 6:30, Expert = 13:00

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: It is 2008. You are an aspiring Sudoku constructor, trying to show fresh ideas for kids and adults at a Silicon Valley event for your first competition as setter. Make some age-appropriate themes / difficulties that highlight creativity.

PDF

or solve online (using SudokuPad)

Theme: Valley (Adult Puzzle #2 after #1 = Silicon)

Author/Opus: This puzzle, by Thomas Snyder, is adapted from a 2008 motris livejournal post.

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 = 2:30, Master = 4:15, Expert = 8:30

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”.)
Dr. Sudoku: It is 2008. You are an aspiring Sudoku constructor, trying to show fresh ideas for kids and adults at a Silicon Valley event for your first competition as setter. Make some age-appropriate themes / difficulties that highlight creativity.

PDF

or solve online (using SudokuPad)

Theme: Four Square

Author/Opus: This puzzle, by Thomas Snyder, is adapted from a 2008 motris livejournal post.

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 = 2:15, Master = 3:00, Expert = 6:00

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.