(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Can you figure out which lines contain odd numbers and which lines contain even numbers in this puzzle by Bill Murphy?

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or solve online (using SudokuPad)

Author/Opus: This is the 24th 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, along each line in red, all numbers must be odd or all numbers must be even.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): TBA; One party hat (🥳): TBA. All other solvers earn a 🦕: TBA T-Rex (for now).

Thomas Hits the GAS (highlight to view): 3:26, 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.)
How many numbers can you fit in before each nine in this grid? The outside clues will tell you in this variation on Sudoku by clover!

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or solve online (using SudokuPad)
or solve online (using Penpa-Plus)

Author/Opus: This is the 45th 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. The clues outside the grid reveal the total sum of numbers before the 9 in that direction from the row or column.

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

Thomas Hits the GAS (highlight to view): 3:14, with Penpa Plus replay this time.

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.)
To get “cracking” in this puzzle you’ll have to think about all the different subsets and what contains what as you move around the grid.

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

Theme: Thunderbolts and Lightning

Author/Opus: This is the 26th 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. For each pair of cages connected by a zigzag line, the set of numbers in the smaller cage must fully appear in the larger cage. Any number on the connecting zigzag line must also be a part of the larger cage but cannot be a part of the smaller cage. Numbers do not repeat within cages.

(For example: The numbers in R4C123 (small cage) and R5C3 (connecting line) must appear in the five-cell cage R67C3+R8C345.)

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

Thomas Hits the GAS (highlight to view): 4:55, 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 determine which cages are full of just even or odd numbers and which cages may be split in half?

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or solve online (using SudokuPad)

Author/Opus: This is the 23rd 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, cages must contain either all even numbers, all odd numbers, or exactly half even and half odd numbers. (In other versions of this variation, cages are marked that must be full or half, but in this particular grid there are no marked cages so their nature must be determined.)

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

Thomas Hits the GAS (highlight to view): 3:42, 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 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.)
Pairs of numbers need to go into the grid, but with the proper distance between them. Take care and you’ll find the unique answer.

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or solve online (using SudokuPad)
or solve online (using Penpa-Plus)

Author/Opus: This is the 44th 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. The clues outside the grid reveal pairs of numbers that appear in the given order, left to right or top to bottom, in that row or column. The value after the colon indicates the distance between the two numbers (with 1 being the smallest possible value meaning the numbers are in adjacent cells one apart).

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

Thomas Hits the GAS (highlight to view): 2:47, with Penpa Plus replay this time.

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.)
When a number is surrounded by two even numbers left/right or top/bottom, you’re given a clue to that “sandwich” in this puzzle.

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

Theme: Pattern? What Pattern?

Author/Opus: This is the 25th 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, the clues outside the grid indicate all numbers in that row or column surrounded by even numbers on both sides (”sandwiched”). Clues can be given in any order, and all such numbers are given. If a clue is a ‘–’, then no values in that row or column are sandwiched between two even numbers.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:30; One party hat (🥳): 16:00. All other solvers earn a 🦕: August Amargatitanis.

Thomas Hits the GAS (highlight to view): 4:06, 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.)
Will the “Kingbreaker” be too much for you or can you control all the zones just fine in this sudoku variation by Bill Murphy?

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or solve online (using SudokuPad)

Theme: Kingbreaker

Author/Opus: This is the 22nd 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 given in the upper-left of a cage must appear in at least one of the cells of that cage.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 6:30; One party hat (🥳): 12:00. All other solvers earn a 🦕: Who will look after the Dollodon?.

Thomas Hits the GAS (highlight to view): 2:17, 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 Figures Sudoku, can you first figure out what should go in all the cages, and then use those numbers to get all the way through to the one unique solution?

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

Theme: Figure It Out

Author/Opus: This is the 24th 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, within each identically shaped cage, the same set of numbers must appear in some order.

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

Thomas Hits the GAS (highlight to view): 2:36, 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 cute German Whispers Sudoku by Bill Murphy looks a bit more like another kind of familiar variation. Can you sort out the new logic to solve this one?

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or solve online (using SudokuPad)

Theme: Hmmm

Author/Opus: This is the 21st puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Sudoku rules (insert a number from 1 to 8 into each cell so that no number repeats in any row, column, or bold region). Adjacent numbers connected by a green line must differ by at least 5.

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

Thomas Hits the GAS (highlight to view): 3:57, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way around the grid to the one solution?

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or solve online (using SudokuPad)
or solve online (using Penpa-Plus; originally posted as a backup)

Author/Opus: This is the 42nd 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, if a diamond is given between two adjacent cells, then the numbers in those cells must add to 9. (Note: not all diamonds are given; adjacent cells without a diamond may or may not add to another value than 9.)

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

Thomas Hits the GAS (highlight to view): 2:46, with Penpa Plus replay this time.

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.