Welcome to GMPuzzles!

On this site, and with our partners, we showcase “The Art of Puzzles”, with hand-crafted logic puzzles by the best puzzle designers for all who love puzzles. If you’re new to logic games, you might want to start with the daily puzzles we share through partners like LinkedIn (where our founder Thomas Snyder is the Principal Puzzlemaster), including Mini Sudoku (6×6), Queens, Tango, and Zip.

On this blog we share many other games and a broader range of difficulties. We organize into the categories of Sudoku, Number Placement, Object Placement, Shading, Region Division, and Loop/Path puzzles with tags on each post to find the easiest/hardest within particular styles. There are also many puzzles in our subscriptions and books so check out our Store for more details and to support our puzzlemakers.

New to the site and to logic puzzles besides Sudoku? Here is a web intro to Tapa, a great shading puzzle invented by Serkan Yürekli, our managing editor, with example walkthrough and a curated set of puzzles from our archive. Also check out our books like Intro to GMPuzzles and the Starter Packs for great beginner series.

Since June 2025, we’ve been running the “Twelve Months of Sudoku?” project, where we take a year to see how far we can push the limits of sudoku, with new partners, projects, and different things than we’ve ever tried to do before. This includes:

If you are a subscriber for any of our seasons since July 2023, please use this page to login and make sure you see all content.

Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Today’s Forecast: Expect scattered showers of consecutive numbers in this Classic Sudoku.

Sudoku by Philip Newman

PDF

or solve online (using SudokuPad)

Theme: Pitter-Patterns

Author/Opus: This is the 116th 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 (🎩🥳): 5:00; One party hat (🥳): 10:00. All other solvers earn a 🦕: Gladsome Gobititan.

Thomas Hits the GAS (highlight to view): 1:38, 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 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.

Diagonal Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
It looks like there is a missing box of givens in this Sudoku puzzle. Thankfully the extra diagonal constraints might save the logic from falling apart.

Diagonal Sudoku by Bill Murphy

PDF

or solve online (using SudokuPad)

Theme: Oh No, I Lost a Box!

Author/Opus: This is the 114th puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

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 (🎩🥳): 8:00; One party hat (🥳): 15:00. All other solvers earn a 🦕: Marmalade Miragaia.

Thomas Hits the GAS (highlight to view): 3:24, 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.

Killer Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
If a recent GAS puzzle made you think “Run”, the negative space of this fun Killer Sudoku by clover! might remind you of another full diagonal pattern.

Killer Sudoku by clover!

PDF

or solve online (using SudokuPad)

Theme: Negative Space

Author/Opus: This is the 135th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Insert a number from 1 to 8 into each cell so that no number repeats in any row, column, or bold region. Also, the sum of the numbers in each cage must equal the value given in the upper-left corner of that cage. Numbers cannot repeat inside a cage.

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

Thomas Hits the GAS (highlight to view): 2:05, 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; solving video with explanation to be added later from GAS team.

Note: Follow this link for more Killer Sudoku and this link for classic Sudoku. More Killer Sudoku puzzles can be found in Killer Sudoku by Serkan Yürekli.

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.

Arrow Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Let your puzzle-solving skills fly in this slightly askew Arrow Sudoku.

Arrow Sudoku by Philip Newman

PDF

or solve online (using SudokuPad)

Theme: A Different Symmetry

Author/Opus: This is the 115th puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Arrow 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 arrow shapes are in the grid; the sum of the numbers along the path of each arrow must equal the number in the circled cell. Numbers can repeat within an arrow shape.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:30; One party hat (🥳): 15:00. All other solvers earn a 🦕: Fortuitous Fusuisaurus.

Thomas Hits the GAS (highlight to view): 2:53, 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 more Arrow Sudoku. If you are new to this puzzle type, here are our easiest Arrow Sudoku to get started on. More Arrow Sudoku puzzles can be found in these books in our e-store.

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.

Nonconsecutive Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
After showing us a Superconsecutive puzzle not too long ago, Bill may be out of consecutive energy because there are no consecutive numbers in any adjacent cells in this puzzle.

Nonconsecutive Sudoku by Bill Murphy

PDF

or solve online (using SudokuPad)

Theme: Thinking Inside and Outside of the Box

Author/Opus: This is the 113rd puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

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 orthogonally adjacent cells can be consecutive (i.e., differ by 1).

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:00; One party hat (🥳): 11:00. All other solvers earn a 🦕: Sentimental Seitaad.

Thomas Hits the GAS (highlight to view): 1:58, 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 Consecutive Sudoku. If you are new to this puzzle type, here are our easiest Consecutive Sudoku to get started on.

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.

Sandwich Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Have you ever tried an 8×8 Sandwich Sudoku, possibly one with some of the crust cut off? Enjoy this “single-digit” treat by clover!.

Sandwich Sudoku by clover!

PDF

or solve online (using SudokuPad)

Theme: Single-Digit Sandwich

Author/Opus: This is the 134th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Insert a number from 1 to 8 into each cell so that no number repeats in any row, column, or bold region. Clues outside the grid give the sum of the numbers in the cells between the 1 and the 8 in that row or column.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:00; One party hat (🥳): 11:00. All other solvers earn a 🦕: sandy Siamodon.

Thomas Hits the GAS (highlight to view): 1:42, 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.

Kropki Pairs Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Run, don’t walk, to solve this Kropki Pairs Sudoku.

Kropki Pairs Sudoku by Philip Newman

PDF

or solve online (using SudokuPad)

Theme: Run

Author/Opus: This is the 114th 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). 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. Pairs of cells without circles can have any relationship.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:30; One party hat (🥳): 13:00. All other solvers earn a 🦕: Euphoric Europasaurus.

Thomas Hits the GAS (highlight to view): 2:13, 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.

Thermo-Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
This Thermo-Sudoku appears to feature some carefully placed, “yassified” Thermometers with some beautiful (possibly over-the-top) symmetry.

Thermo-Sudoku by Bill Murphy

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 112nd puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Thermo-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.)

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:00; One party hat (🥳): 10:00. All other solvers earn a 🦕: Vroom Velocisaurus.

Thomas Hits the GAS (highlight to view): 1:12, 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 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 Daily GAS discussion post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.

XV Pairs Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Have you noticed how all these 8×8 puzzles by clover! are “nineless”? Today’s variation makes this abundantly clear.

XV Pairs Sudoku by clover!

PDF

or solve online (using SudokuPad)

Theme: Nineless

Author/Opus: This is the 133rd puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Insert a number from 1 to 8 into each cell so that no number repeats in any row, column, or bold region. 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. (Pairs of cells without an X or V mark can have any sum value.)

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:00; One party hat (🥳): 11:00. All other solvers earn a 🦕: eight-way Eocursor.

Thomas Hits the GAS (highlight to view): 1:57, 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.

Killer Quadruples Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Chase down the solution to this Killer Quadruples Sudoku before it claims you as its next victim.

Killer Quadruples Sudoku by Philip Newman

PDF

or solve online (using SudokuPad)

Theme: The Thing

Author/Opus: This is the 113th 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). The sum of the numbers in each cage must equal the value given in the upper-left corner of that cage. Numbers cannot repeat inside a cage. Also, the set of four numbers in a white circle must appear in the four surrounding cells.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:30; One party hat (🥳): 15:00. All other solvers earn a 🦕: Dithering Diplodicus.

Thomas Hits the GAS (highlight to view): 2:32, 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 Killer Sudoku and this link for classic Sudoku. More Killer Sudoku puzzles can be found in Killer Sudoku by Serkan Yürekli.

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.