This post is part of the Genuinely Approachable Sudoku (GAS) series.
Bill Murphy presents this beautiful classic sudoku with one perfect solution and no flaws at all.

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Theme: I Admit My Faults

Author/Opus: This is the 9th puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Sudoku rules.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:00; One party hat (🥳): 10:00. All other solvers earn a 🦕: Single Suuwassea.

Thomas Hits the GAS (highlight to view): 2:15, 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 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.
Like a Little Killer Sudoku, the internal arrows in this Sum Detector Sudoku indicate the sum of some number of cells along their path, but the number of cells must be determined.

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Author/Opus: This is the 30th 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 number in each cell with an arrow must equal the sum of the values in one or more cells along the diagonal pointed at by the arrow, starting with the cell that the arrow points to directly. (For instance, R1C3 could equal R2C4, or R2C4+R3C5, or R2C4+R3C5+R4C6, and so on.)

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

Thomas Hits the GAS (highlight to view): 3:34, 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.

How will you find your way through this Killer Sudoku by Philip Newman? A walk in the park, or a death by tuples?

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Theme: Death by Tuples

Author/Opus: This is the 11th 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 sum of the numbers in each cage must equal the value given in the upper-left corner of that cage. Numbers cannot repeat inside a cage.

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

Thomas Hits the GAS (highlight to view): 4:25, 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 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.

Unlike our usual Arrow Sudoku, there are no sum constraints here; the arrows tell you how many different numbers appear on the path. Can you solve the sudoku by Bill Murphy?

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Author/Opus: This is the 8th 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). The number in the bulb of an arrow indicates the number of unique numbers that appear along the arrow.

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

Thomas Hits the GAS (highlight to view): 2:21, 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.

In this second puzzle in a Surplus/Deficit series this week, all the extras from puzzle one are leading to some less full spaces in this grid. Can you still complete this Deficit Sudoku by Clover?

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Author/Opus: This is the 29th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Deficit Sudoku rules, with numbers from 1-8: Insert a number from 1 to 8 into each cell so that no number repeats in any row or column. Some regions appear with fewer cells than there are numbers in the indicated range. No number repeats in these regions, but not all numbers will appear in each of these regions.

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

Thomas Hits the GAS (highlight to view): 2:19, 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 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.

All the straight blue lines in this Region Sum Lines by Philip Newman are hiding curious logic that might just work out like some “blue” magic.

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Theme: Magic Blue

Author/Opus: This is the 10th 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). Along each line, the numbers in every region it passes through have the same sum. (In this puzzle, for example, R1C9 + R2C8 + R3C7 = R4C6 + R5C5 + R6C4 = R7C3 + R8C2 + R9C1.)

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 9:00; One party hat (🥳): 18:00. All other solvers earn a 🦕: Sumptuous Sulaimanisaurus.

Thomas Hits the GAS (highlight to view): 4:04, 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 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.

While we weren’t posting GAS puzzles for the first few Czech Outsiders, we think you’ll still catch the theme for this edition III.

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Theme: Czech Outsider III

Author/Opus: This is the 7th 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). Clues outside the grid must appear along the indicated diagonal. If a number is given multiple times, it must appear that many times along the diagonal.

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

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.

Clover’s left room for something extra in every region of this Surplus Sudoku, the first of a two puzzle series this week.

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Author/Opus: This is the 28th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Surplus Sudoku rules, with numbers from 1-8: Insert a number from 1 to 8 into each cell so that no number repeats in any row or column. Some regions appear with more cells than there are numbers in the indicated range. Some number(s) repeat in these regions, but all numbers in the indicated range must appear at least once within each of these regions.

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

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 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.

This Kropki Pairs Sudoku by Philip Newman has an amazing arrangement of numbers and dots, both visually and logically.

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Theme: Tilting Kropmills

Author/Opus: This is the 9th 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). 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. Pairs of cells without circles can have any relationship.

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

Thomas Hits the GAS (highlight to view): 3:51, 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.

Following up from the last “Weighted” puzzle, today’s GAS from Bill Murphy is a proper Little Killer and quite fun even if harder than the prior puzzle.

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Theme: New Body Rhumba

Author/Opus: This is the 6th 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 along indicated diagonals must sum to the given total outside the grid.

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

Thomas Hits the GAS (highlight to view): 3:02, 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.