(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
What’s better than one pair of diagonals? Maybe something like this Multi-Diagonal Sudoku by Bill shows!

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Author/Opus: This is the 109th 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 3×3 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 🦕: X-Zalmoxes.

Thomas Hits the GAS (highlight to view): 3:28, 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.)
We seem to be running out of space in this Squishdoku that compresses the normal grid into a 7 by 7 square. Can you still figure out some big Sudoku deductions?

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Author/Opus: This is the 108th 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 3×3 region. In this variation, the 3×3 regions overlap along the cells with dotted lines (i.e., the first region at the top goes from column 1 to 3, the second from column 3 to 5, and the last from column 5 to 7 with overlapping in columns 3 and 5; the same overlapping applies to the rows.)

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:30; One party hat (🥳): 11:00. All other solvers earn a 🦕: SquishDollodon.

Thomas Hits the GAS (highlight to view): 2:06, 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 twist on the typical Kropki formula, it is the sums of the values in each cage that are being compared when considering the black and white dots.

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or solve online (using SudokuPad)

Author/Opus: This is the 107th 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 white circle is given between two cages, then the sums of the numbers in those cages must differ by 1. If a black circle is given between two cages, then the sums of the numbers in those cages must have a ratio of 2. Numbers cannot repeat in a cage, and not all circles are given.

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

Thomas Hits the GAS (highlight to view): 2:50, 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.)
Along each of the vertical bars in this cute Sudoku you must alternate numbers higher than their neighbor(s) with numbers lower than their neighbor(s). Can you figure out all the peaks and valleys to get to the one true solution?

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or solve online (using SudokuPad)

Author/Opus: This is the 106th 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, numbers must alternate between increasing and decreasing along the gray lines (e.g., a valid sequence for a gray line could be 2937186 with 9, 7, and 8 as high points and 2, 3, 1, and 6 as low points).

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 8:30; One party hat (🥳): 16:00. All other solvers earn a 🦕: See-Saurornithoides.

Thomas Hits the GAS (highlight to view): 3:43, 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.)
With all these rounded Whispers rings, will you find today’s GAS puzzle tough or “Fangless”?

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Theme: Fangless

Author/Opus: This is the 105th 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 cells directly connected on an orange line must differ by at least 4.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:30; One party hat (🥳): 11:00. All other solvers earn a 🦕: SSShunosaurus.

Thomas Hits the GAS (highlight to view): 2:46, 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.)
Can you figure out how each of the Quadruples clues will sort out in this Sudoku called “The Wiggler”?

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Theme: The Wiggler

Author/Opus: This is the 104th 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 🦕: Vortex Variraptor.

Thomas Hits the GAS (highlight to view): 2:40, 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.)
Today we have another trip to the Borderland with Bill showing a puzzle where each diamond indicates the size of an odd or even group of numbers.

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or solve online (using SudokuPad)

Author/Opus: This is the 103rd 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). A cell containing a diamond is part of a group of numbers of the same parity connected by edges, and the number inside the diamond indicates how many numbers of the same parity (including itself) form this group. (For example, a diamond containing a 2 must be connected by its edges to only one other even number besides itself; that is, all other edge neighbors of these two numbers must be odd.)

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 9:00; One party hat (🥳): 17:00. All other solvers earn a 🦕: Handsome Jaxartosaurus.

Thomas Hits the GAS (highlight to view): 4:33, 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 a (45-degree) twist from regular Consecutive-style puzzles, here the connected cells all sit on a diagonal.

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or solve online (using SudokuPad)

Theme: Free Center

Author/Opus: This is the 102nd 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, numbers adjacent to each other along the gray lines must differ by 1. Numbers may repeat on the gray lines. Diagonally adjacent numbers that do not have a gray line 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 🦕: Parallel Pampadromaeus.

Thomas Hits the GAS (highlight to view): 2:48, 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.
One highlight of working with the GAS team is seeing how they play with different kinds of ideas to open up solving possibilities. We hope you enjoy this vvvvv-ery fun Classic Sudoku that shows you don’t need extra rules if you have a good idea to construct.

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Theme: VVVVV

Author/Opus: This is the 101st 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.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:50; One party hat (🥳): 11:00. All other solvers earn a 🦕: Viridian Velafrons.

Thomas Hits the GAS (highlight to view): 2:04, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
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or for a background-free version (once you pass the test): PDF or solve online (using SudokuPad)

Author/Opus: This is the 100th 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 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. Within regions containing a two-wheeled vehicle, all dots are given. (Pairs of cells sharing a border across regions may still differ by 1 or have a ratio of 2.)

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

Thomas Hits the GAS (highlight to view): 3:33, 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.