(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Today’s GAS features the full Battenburg dessert: the checkerboard clues show where an alternating even/odd pattern must appear and the absence of such clues indicates there is no such “pretty” pattern in that space.

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or solve online (using SudokuPad)

Theme: Accentuate the Negative

Author/Opus: This is the 84th 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). Whenever a checkerboard clue appears at the intersection of four cells, the numbers in those cells must form a “checkerboard” pattern of odd and even (i.e., one diagonally opposite pair is odd and the other pair is even). All possible checkerboard clues have been given, so any sets of four cells without a clue cannot have a “checkerboard” pattern of odd and even.

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

Thomas Hits the GAS (highlight to view): 2:54, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Today’s GAS features the good part of Checkerboard (parity) logic and not the potentially hidden side that can be trickier.

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or solve online (using SudokuPad)

Theme: Accentuate the Positive

Author/Opus: This is the 83rd 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). Whenever a checkerboard clue appears at the intersection of four cells, the numbers in those cells must form a “checkerboard” pattern of odd and even (i.e., one diagonally opposite pair is odd and the other pair is even). Sets of cells without such a clue can have any arrangement of numbers and parities.

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

Thomas Hits the GAS (highlight to view): 3:19, 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.)
Today’s GAS features a somewhat open grid with six Quadruples clues to tie everything together. Can you figure out the path through these corner clues to the one solution?

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or solve online (using SudokuPad)

Theme: Quadrille

Author/Opus: This is the 82nd 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 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 🦕: forceful Fukuiraptor.

Thomas Hits the GAS (highlight to view): 1:48, 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.)
Sometimes the first workday after a long holiday (like the recent Thanksgiving in the US) can throw you for a loop. We don’t know if that is clover’s motivation today, but this combination of a Loop puzzle and a Sudoku will make you think more creatively than usual.

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or solve online (using SudokuPad; this should now default to loading with the Pen tool on (people who already clicked may need to clear their browser cache for the short url). The pen tool looks like a square icon containing a circle and a bent line, next to the big 9 used to select the main number entry. Hitting those adjacent icons should let you alternate between entering numbers and loop segments. It is also at the top of the Settings menu (gear symbol) to turn on. Thanks to Michael in the comments for helping us get this on by default.)

Theme: Tangled Up in Loop

Author/Opus: This is the 81st puzzle from Clover, 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, draw a single, non-intersecting loop that passes through all cells except for the gray central cell, moving only up, down, left, or right between cells. The loop must travel straight through every cell with an odd number and turn in every cell with an even number.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 10:00; One party hat (🥳): 20:00. All other solvers earn a 🦕: knotty Nodosaurus.

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 the Genuinely Approachable Sudoku (GAS) series.)
For those in the US who want to purchase a Black Friday Sudoku, consider this buy one get one deal guaranteed to fuel the brain!

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or solve online (using SudokuPad)

Theme: Buy One, Get One

Author/Opus: This is the 80th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: This puzzle contains two overlapping 9×9 classic Sudoku grids that will share the same numbers in the overlapping spaces. Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region of either Sudoku grid.

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

Thomas Hits the GAS (highlight to view): 2:14, 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.)
This line puzzle is certainly a very different experience from usual. Can you figure out the incredible logic of the Scottish Whispers?

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or solve online (using SudokuPad)

Theme: Scottish Whispers

Author/Opus: This is the 79th 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). Each line contains exactly one distinct number.

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

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 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.)
Following an earlier puzzle this week, today the Rossini rules are in full effect meaning there is an inverse rule and non-arrow rows/columns cannot have any of Rossini’s trademark crescendos/decrescendos in the form of increasing or decreasing series of numbers.

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or solve online (using SudokuPad)

Theme: William Tell

Author/Opus: This is the 78th 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). Whenever an arrow is given outside the grid, the first three numbers in that row or column must increase in the direction of the arrow. For example, the arrow at the left of row 3 means R3C1 < R3C2 < R3C3. Also, all possible arrows have been given so where there are no arrows on the outside there cannot be an increasing or decreasing series (i.e., the middle number is the largest or smallest of the set of three numbers). GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:30; One party hat (🥳): 14:00. All other solvers earn a 🦕: romantic Rhabdodon.

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 the Genuinely Approachable Sudoku (GAS) series.)
While the variant name seems like a mouthful, it comes from the origin with an anti-rule that doesn’t apply here. Today, just recognize that arrow clues describe increasing or decreasing series for the first three numbers in that direction.

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or solve online (using SudokuPad)

Theme: The Barber of Seville

Author/Opus: This is the 77th 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). Whenever an arrow is given outside the grid, the first three numbers in that row or column must increase in the direction of the arrow. For example, the arrow at the left of row 4 means R4C1 < R4C2 < R4C3 and the arrow at the left of row 9 means R9C1 > R9C2 > R9C3. (The absence of an outside arrow clue has no meaning in this puzzle unlike “standard” Rossini Sudoku.)

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

Thomas Hits the GAS (highlight to view): 1:40, 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.)
What’s the difference between a fun, human-crafted GAS puzzle and something you’ll find in one of the seemingly millions of interchangable sudoku apps out there? We’ll leave that difference 2 U 2 figure out.

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or solve online (using SudokuPad)

Theme: Same Difference

Author/Opus: This is the 76th 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). Number clues given between pairs of cells indicate the difference of the values in those two cells. (For instance, R1C1 and R2C1 have a difference of exactly 2.)

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

Thomas Hits the GAS (highlight to view): 2:01, 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.)
Welcome back to another Dutch Whispers puzzle, where cells on the orange lines must be separated by at least 4. Will all this whispering leave you flustered?

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or solve online (using SudokuPad)

Theme: Flustered Fluistering

Author/Opus: This is the 75th 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 in cells directly connected on an orange line must differ by at least 4.

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

Thomas Hits the GAS (highlight to view): 2:45, 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.