Either/Or Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
“The Multiverse is a concept about which we know frighteningly little.” — Dr. Stephen Strange in Spider-Man: No Way Home | There are no givens in this Either/Or Sudoku; do you know enough information to solve this multiversal puzzle?

Either/Or Sudoku by Bill Murphy

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or solve online (using SudokuPad)

Theme: Cahooting The Multiverse

Author/Opus: This is the 176th 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, the numbers given on the edges between cells must belong to one of those two adjacent cells.

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

Thomas Hits the GAS (highlight to view): 2:30, 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

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.

Skyscraper Sudoku (0 to 8) by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
This 0-8 Skyscraper Sudoku follows the same rules as previous Skyscraper Sudoku puzzles, except that the buildings only go up to 8 and 0 does not represent a building.

0-8 Skyscraper Sudoku by clover!

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or solve online (using SudokuPad)

Theme: Glass Houses

Author/Opus: This is the 196th puzzle from clover!, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Insert a number from 0 to 8 into each cell so that no number repeats in any row, column, or bold region. Also, as in the puzzle Skyscrapers, each number in the grid represents the height of a building and the clues on the outside of the grid indicate how many buildings can be “seen” when looking from that direction. Taller buildings block the view of smaller buildings. Note that 0 is not counted as a building and also never blocks any other digits from view. (For example, if a row contained the numbers 018432675, then two buildings are seen from the left – 1 and 8 – and three buildings from the right – 5, 7, and 8 – with the other buildings blocked by taller buildings in front of them.)

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

Thomas Hits the GAS (highlight to view): 3:07, 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

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.

Anti-King Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Remember, remember the Fifth of November, / Anti-King Sudoku and plot. / I see no reason / Why Bonfire Night season / Should ever be forgot.

Antiking Sudoku by Philip Newman

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or solve online (using SudokuPad)

Theme: What Does the Fawkes Say?

Author/Opus: This is the 171st 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, cells sharing a corner cannot contain the same number (as if adding a chess king’s move constraint to each cell).

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:00; One party hat (🥳): 11:00. All other solvers earn an 🦕: Incendiary Igai.

Thomas Hits the GAS (highlight to view): 2:28, 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

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.

Consecutive Pairs Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Sweater weather is upon us. So many options — does today call for a cardigan, sweater vest, or poncho? Nah, it’s a turtleneck kind of day, much like this Consecutive Pairs Sudoku.

Consecutive Pairs Sudoku by Bill Murphy

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or solve online (using SudokuPad)

Theme: Turtleneck

Author/Opus: This is the 175th 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. Pairs of cells without circles can have any relationship.

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

Thomas Hits the GAS (highlight to view): 1:39, 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

Note: Follow this link for Consecutive Pairs Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Consecutive Pairs Sudoku to get started on. More Consecutive Pairs 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.

Almost Palindrome Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
This Almost Palindrome Sudoku follows the same rules as Palindrome puzzles, except that each gray line contains a mystery pair of mismatched digits.

Almost Palindrome Sudoku by clover!

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or solve online (using SudokuPad)

Theme: Off by One

Author/Opus: This is the 195th 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). The numbers along each gray line form a palindrome (i.e., read the same forwards and backwards), except for a single pair of non-matching numbers on each line, which must be identified by the solver.

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

Thomas Hits the GAS (highlight to view): 4:13, 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

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.

Anti-Knight Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
We’ve reached that time of year when nights are noticeably longer than days. Time to don some comfy PJs, sip a mug of hot cocoa, and snuggle up with a good Anti-Knight Sudoku.

Anti-Knight Sudoku by Philip Newman

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or solve online (using SudokuPad)

Theme: Short Days, Long Antiknight

Author/Opus: This is the 170th 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, numbers cannot repeat in any cells separated by a chess knight’s move.

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

Thomas Hits the GAS (highlight to view): 5:22, 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

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.)
Channel Tarzan as you enjoy swinging from thermo to thermo in this thermometer jungle.

Thermo-Sudoku by Bill Murphy

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or solve online (using SudokuPad)

Theme: Joy in the Jungle

Author/Opus: This is the 174th 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 (🎩🥳): 7:00; One party hat (🥳): 13:00. All other solvers earn an 🦕: Eccentric Eoraptor.

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

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.

X-Sums Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Trick and treat! Treat yourself to this tricky X-Sums Sudoku to celebrate 10/31. Happy Halloween!

X-Sums Sudoku by clover!

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or solve online (using SudokuPad)

Theme: The Scariest Thing

Author/Opus: This is the 194th 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). Also, the clues outside the grid indicate the sum of the first X numbers placed in the corresponding direction, where X is equal to the first number placed in that direction (e.g., because R3C1 is 6, the six numbers in R3C1, R3C2, and on to R3C6 all add up to 31).

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

Thomas Hits the GAS (highlight to view): 2:58, 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

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.

Anti-King Sudoku by Philip Newman

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Does an Anti-King Sudoku constitute lèse-majesté, or “injured majesty”? If so, we humbly beg your pardon for any offense this puzzle may give.

Antiking Sudoku by Philip Newman

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or solve online (using SudokuPad)

Theme: Lèse-majesté

Author/Opus: This is the 169th 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, cells sharing a corner cannot contain the same number (as if adding a chess king’s move constraint to each cell).

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

Thomas Hits the GAS (highlight to view): 4:46, 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

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.

Quadruples Sudoku by Bill Murphy

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Two complete rows are given in this Quadruples Sudoku. Can you use the white circles to get the rest of your ducks, or rather digits, in a row?

Quadruples Sudoku by Bill Murphy

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or solve online (using SudokuPad)

Theme: Angel Vision

Author/Opus: This is the 173rd 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 (🎩🥳): 6:30; One party hat (🥳): 12:00. All other solvers earn a 🦕: Sap Scansoriopteryx.

Thomas Hits the GAS (highlight to view): 2:18, 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

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.