(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
While the grid may look “classic” to you, you’ll need to know that no pairs sum up to 5 or 10 to make progress.

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or solve online (using SudokuPad)

Theme: Two Deadly Givens

Author/Opus: This is the 18th 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). No two numbers in adjacent cells can sum to exactly 10 or 5 as in the Roman Numerals for X or V. (This is the same rule as in XV Sudoku, but there are no X or V clues given here so it is Anti- only.)

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

Thomas Hits the GAS (highlight to view): 3:20, 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 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
In this puzzle, evens and odds cannot have too many in a row. No Three in a Row Sudoku by Bill Murphy.

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or solve online (using SudokuPad)

Author/Opus: This is the 15th 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, there may not exist a run of three or more cells horizontally or vertically in the grid that all contain numbers of the same parity (i.e., even or odd).

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 8:00; One party hat (🥳): 15:00. All other solvers earn a 🦕: Paint-by-Nuthetes.

Thomas Hits the GAS (highlight to view): 3:00, 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 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.

(This post is part of: “A Story of Self-setting ナンプレ”.)
So is this the moment the ナンプレ start to talk themselves?

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or solve online (using ナンプレPad)

Author/Opus: This is puzzle 十三 from “Dr. ナンプレ”, our AI-powered puzzle engine pushing the limits of ナンプレ intelligence.

Rules: Insert a number from 一 to 九 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 = 11:30, Master = 25:00, Expert = 50:00

Solution: PDF

Editor’s Note: For this post, the AI borrowed heavily, but with permission, from Friday Puzzle post #20 from 2009 in this motris livejournal post. This was revealed in the YouTube video “How Ideas Get Spirited Away” after no one noticed after awhile.

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

Note 二: Comments on the blog are great! For a more interactive discussion, please also consider using our 十二 Months of ナンプレ? 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.)
In today’s GAS by clover!, the puzzle style Easy as ABC gets joined with Sudoku to form a combined Number Placement challenge. Will you find it as easy as the name suggests?

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or solve online (using SudokuPad)

Author/Opus: This is the 36th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Insert a number from 1 to 6 into each cell so that no number repeats in any row, column, or bold region. Three cells will remain empty in each row, column, and region. The numbers outside the grid indicate the first value seen in that direction inside the grid.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:30; One party hat (🥳): 12:00. All other solvers earn a 🦕: simple Secernosaurus.

Thomas Hits the GAS (highlight to view): 2:20, 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 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.

(This post is part of: “A Story of Self-setting Sudoku”.)
So is this the moment the Sudoku start to talk themselves?

PDF

or solve online (using SudokuPad)

Author/Opus: This is 12th 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 = 8:30, Master = 17:30, Expert = 35:00

Solution: PDF

Editor’s Note: For this post, the AI borrowed heavily, but with permission, from Friday Puzzle post #20 from 2009 in this motris livejournal post. This was revealed in the YouTube video “How Ideas Get Spirited Away” after no one noticed after awhile.

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.)
In a Disjoint Groups Sudoku, each of the relative positions for placements (like the upper-leftmost cell in each region) cannot repeat numbers as well, making a kind of 4D puzzle. Can you still solve it?

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or solve online (using SudokuPad)

Theme: What Are You Hiding?

Author/Opus: This is the 17th 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). Also, numbers cannot repeat in the same relative position (e.g., the upper-left cell or center cell) within different regions.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 8:00; One party hat (🥳): 15:00. All other solvers earn a 🦕: Patchy Pakisaurid.

Thomas Hits the GAS (highlight to view): 3:45, 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 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.

(This post is part of: “A Story of Self-setting Sudoku”.)
So is this the moment the Sudoku start to solve themselves?

PDF

or solve online (using SudokuPad)

Author/Opus: This is 11th 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 stars

Time Standards (highlight to view): Grandmaster = 7:00, Master = 11:30, Expert = 23:00

Solution: PDF

Editor’s Note: For this post, the AI borrowed heavily, but with permission, from SudokuCup puzzles from a 2010 motris livejournal post. This was revealed in the YouTube video “How Ideas Get Spirited Away” after no one noticed after awhile.

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.)
Some see the world in black and white. In this puzzle, the Faded Kropki dots don’t even have two colors, and come in white and white.

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or solve online (using SudokuPad)

Author/Opus: This is the 14th 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). If a circle is given between two adjacent cells, then it either means that (A) the two numbers in those cells must differ by 1, or (B) the two numbers must have a ratio of 2. Pairs of cells without circles can have any relationship.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:30; One party hat (🥳): 14:00. All other solvers earn a 🦕: Washed Out Wellnhoferia.

Thomas Hits the GAS (highlight to view): 3:05, 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 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.

(This post is part of: “A Story of Self-setting Sudoku”.)
This may seem like it would be our hardest self-setting challenge yet. But the natural flow of traffic at these intersections allows just one or two lanes to go at a time; following these basic rules we can pass right through.

PDF

or solve online (using SudokuPad)

Author/Opus: This is 10th puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence. (This is also the 591st 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 = 1:30, Master = 2:15, Expert = 4:30

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”.)
This may seem like it would be our hardest self-setting challenge yet. But the natural flow of traffic at these intersections allows just one or two lanes to go at a time; following these basic rules we can pass right through.

PDF

or solve online (using SudokuPad)

Author/Opus: This is 9th puzzle from “Dr. Sudoku”, our AI-powered puzzle engine pushing the limits of sudoku intelligence.

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 = 1:30, Master = 2:15, Expert = 4:30

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.