Today Clover continues sharing appropriately-themed puzzles to mark the fifth year of GAS. In this Killer Sudoku variant, all the cage sums must end in five.

PDF

or solve online (using SudokuPad)

Author/Opus: This is the (5×5)th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.*

Rules: Variation of Killer Sudoku. Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region. Within each cage, the sum of the numbers must end in five (i.e., 5, 15, 25, 35, 45). Numbers do not repeat within a cage.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:00; One party hat (🥳): 13:00. All other solvers earn a 🦕: still-alive Sinornithoides.

Thomas Hits the GAS (highlight to view): 2:22, 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 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.

*Special Editorial Note: With this published puzzle, Clover has set a new record (likely never to be broken?) for fastest time to 25 posts on Grandmaster Puzzles (just 26 days). This breaks the previous record by legendary male puzzlemaker Thomas Snyder set on January 28, 2013 (29 days). While some may say that puzzles like Just One Cell Sudoku shouldn’t count as much, we think every diverse idea matters in this world and every one of Clover’s 25 record-setting puzzles has been a stellar display of hand-crafted Sudoku.

After a week of fun content from the GAS team, I wanted to celebrate a special partner with a Classic Sudoku in a favorite pattern/theme. I’ve made puzzles called (Four-leaf) Clover a lot of times, but this is the first one I leave for Clover.

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

Theme: For 🍃 Clover

Author/Opus: This is the 580th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Difficulty (highlight to view): 4 stars

Time Standards (highlight to view): Grandmaster = 5:30, Master = 9:30, Expert = 19:00

Solution: PDF

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 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.

Today’s Genuinely Approachable Sudoku shows a symmetric theme with only a few distinct numbers given as clues; can you solve this fun puzzle by Philip Newman?

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

Theme: Sharrows

Author/Opus: This is the 6th puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Arrow Sudoku rules.

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

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 more Genuinely Approachable Sudoku puzzles on this site. 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 week-0-discussion thread on the GMPuzzles Discord. If you are not yet part of this Discord community, use this link. Not a member of the Discord? Click this link for basic access.

Following the “234” Outside Sudoku earlier this week, today’s Genuinely Approachable Sudoku has 2, 3, and 4 number clues in each Quadruples clue groups which sets up another great puzzle.

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or solve online (using SudokuPad)

Theme: Seeing Stars

Author/Opus: This is the 3rd 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). Numbers in white circles must appear in at least one of the four surrounding cells.

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

Thomas Hits the GAS (highlight to view): 2:23, 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 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.

The number five proves to be a versatile clue in this mathematical GAS puzzle by Clover. Please continue the celebration of five years of GAS by solving this Sudoku.

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or solve online (using SudokuPad)

Author/Opus: This is the 24th puzzle from Clover, 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). Numbers separated by a white circle either add up to 5 or have a difference of 5. Not all possible circles are necessarily given.

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

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 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 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.

Philip Newman gained early attention in the Sudoku world from the very interesting yet very hard classic puzzle Tatooine Sunset. The basic Tatooine grid geometry has been explored many more times with many kinds of solving paths, including in today’s Genuinely Approachable Sudoku.

PDF

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

Theme: Tatooine Thursday?

Author/Opus: This is the 5th 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 (🎩🥳): 8:00; One party hat (🥳): 20:00. All other solvers earn a 🦕: Quick Qaikshaheen.

Thomas Hits the GAS (highlight to view): 2:24, 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 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.

Today’s Genuinely Approachable Sudoku by Bill Murphy is a minor variation of a favorite style here at GMPuzzles: Outside Sudoku. Can you place all the numbers now that the outside clues refer to the second, third, or fourth cells in that direction?

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or solve online (using SudokuPad)

Author/Opus: This is the 2nd puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Variation of Outside Sudoku 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 numbers are given outside the grid. These numbers must appear in the second, third, or fourth cell in the corresponding direction.

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

Thomas Hits the GAS (highlight to view): 2:35, 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 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.

Some people have asked if the Sudoku wedding is a lie. How can it be, we’ve prepared cake!

PDF

Potentially to be adapted to SudokuPad, but cake is better together in person.

Author/Opus: This is the 579th puzzle from Thomas Snyder, aka Dr. Sudoku.

Instructions:
1.) If you are a relatively new intelligence, and are not tall enough to reach most places above the ground, prove your primary education by telling us the [ENTRY].
2.) If you are now an older intelligence, have completed secondary education and solved lots of puzzles, then please take a bigger look at the image and show us [GRID]. Adjacent to any square filled wholly with a color AND with a number that rhymes with that color in English, there must be two other numbers whose product is the square of the colored square number.
3.) If you are now an advanced (perhaps artificial) intelligence, please limit your special powers to just seeing black, violet, and ultraviolet. Interpret what you see to show us [GRID].
4.) If you are an actually intelligent human who wants a good puzzle but doesn’t want to use a computer or be a [🐰🥚], skip step (3) but still consider it. Seeing the world in more than black and white but not down about the past, solve this P = NP starting with NP, as in Number Place. As NP was borrowed, another name might help find the way to [GRID].
5.) What heights you’ve reached. Look around to find P = [PLACE WE BAKED CAKE].

Author’s Note: No matter what the instructions say, I like to think of Layer 1 as basic old number placing, Layer 2 as early sudoku after being borrowed from America, Layer 3 as new tool-assisted designs for better or worse, and Layer Two plus Two and Layer Two plus Two as something blissfully blue, that makes you ask if I am crazy or brilliant. That really matters on who’s asking and who’s in charge.

Note 2: The PDF or PNG versions are the only definitive source at the moment, but future forms may be shared digitally that are appropriate for a few of the early layers once others have made progress.

Note 3: 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.

Can you dash your way around this Sudoku variation by Clover where certain cells must equal the sum of their neighbors?

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 23rd puzzle from Clover, 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 horizontal dash appears in a cell, the number in that cell is the sum of the numbers to its immediate left and right. If a vertical dash appears in a cell, the number in that cell is the sum of the numbers immediately above and below it.

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

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 Genuinely Approachable Sudoku puzzles on this site. 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.

A prior post discussed how I’m getting “married” to Sudoku over this upcoming year, with different ideas for something old, something new, something borrowed, and something blue. I may eventually tell more of the story of this puzzle that seems to capture all four.

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or solve online (using SudokuPad)

Theme: But I Still Have Things to Say

Author/Opus: This is the 578th puzzle from Thomas Snyder, aka Dr. Sudoku.

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 any cells separated by a chess knight’s move (as shown below). Also, numbers placed into a cell filled wholly or partially with a primary or secondary color cannot rhyme with the name of that color in English.

Note: Follow this link for more atypical things on this site by Thomas Snyder, not only puzzles. A great starting point for atypical things that are mostly puzzles is this Twelve Days of Sudoku framing post.

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.