(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.

PDF

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.

(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!

PDF

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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Get ready to blast off as you identify contiguous runs of increasing digits in this Max Ascending Sudoku.

PDF

or solve online (using SudokuPad)

Theme: Blastoff

Author/Opus: This is the 193rd 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). Clues outside the grid indicate the exact length of the longest contiguous sequence of strictly increasing numbers in that row or column, starting from the direction of the clue. (For instance, the 5 to the left of row 5 indicates that the longest sequence of increasing numbers starting from the left is exactly 5 cells long like 12579, with no sequence in that row being longer.)

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

Thomas Hits the GAS (highlight to view): 2:20, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
This hybrid of Kakuro and Sudoku stretches the definition of both puzzle types and might just stretch your thinking as you solve it.

PDF

or solve online (using SudokuPad)

Theme: Stretching the Definition

Author/Opus: This is the 192nd puzzle from clover!, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Variation of Kakuro and Sudoku. Insert a number from 1 to 7 into each white cell so that no number repeats in any row or column. Additionally, the sum of numbers in each Across entry equals the value given to the left of the entry, and the sum of numbers in each Down entry equals the value given above the entry.

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

Thomas Hits the GAS (highlight to view): 1:47, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
You may need to take baby steps as you toddle your way around the grid in this XY-Differences Sudoku.

PDF

or solve online (using SudokuPad)

Theme: Baby Steps

Author/Opus: This is the 191st 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). If a diamond is given between two horizontally adjacent cells, then the two numbers in those cells must differ by X, where X is the first number in that row. If a diamond is given between two vertically adjacent cells, then the two numbers in those cells must differ by Y, where Y is the first number in that column. Pairs of cells without diamonds can have any relationship. For instance, the difference between R1C3 and R1C4 is equal to the value in R1C1 (= 3).

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

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

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.)
Hungry? Chow down on this delicious one-sided sandwich from clover!.

PDF

or solve online (using SudokuPad)

Theme: One-Sided Sandwich

Author/Opus: This is the 190th 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). Clues outside the grid indicate the sum of all numbers that appear before the 9 in that row or column, looking from that direction. (For example, a row with a clue of “6” to its left might start with values like 249, 1329, or 69.)

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

Thomas Hits the GAS (highlight to view): 2:02, 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

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 an Interval Sums Sudoku, the numbers in the first two cells next to an outside clue tell you the range of the cells that add up to the clued sum.

PDF

or solve online (using SudokuPad)

Theme: Home on the Range

Author/Opus: This is the 189th 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). Clues outside the grid indicate the sum of the numbers from position A to position B (inclusive) in that row or column, where A and B are the first two numbers from the direction of the clue, regardless of which number is larger. For instance, if the rightmost two numbers in row 7 were 5 and 7 (or 7 and 5), then the sum of the numbers in the 5th, 6th, and 7th positions from the right in that row would equal 6, the value of the outside clue.

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

Thomas Hits the GAS (highlight to view): 1:50, 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

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.)
The DNA strands of these fraternal twins look awfully similar, but somehow still differ just a little bit. Can you spot the differences in this Consecutive Clones Sudoku?

PDF

or solve online (using SudokuPad)

Theme: Fraternal Twins

Author/Opus: This is the 188th 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). Additionally, for each shaded, connected shape (“clone”) in the grid, numbers in the same position must differ by exactly 1 (i.e., be consecutive). (For instance, if R9C5 contains an 8, then R5C9 contains a 7 or 9.)

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

Thomas Hits the GAS (highlight to view): 2:11, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
In this Faded Kropki Sudoku, the gray circles could represent a consecutive pair of numbers, a pair with a ratio of 2, or both. Can you deduce which is which?

PDF

or solve online (using SudokuPad)

Theme: Fade to Gray

Author/Opus: This is the 187th 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). If a circle is given between two adjacent cells, then it means that either (A) the two numbers in those cells must differ by 1, or (B) 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 (🎩🥳): 6:30; One party hat (🥳): 12:00. All other solvers earn a 🦕: dim Dryptosaurus.

Thomas Hits the GAS (highlight to view): 3:18, 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.

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
The late artist Joan Vila-Grau spent about two decades creating the stunning stained glass windows of La Sagrada Familia. Now it’s your turn to complete the stained glass of this Windoku puzzle.

PDF

or solve online (using SudokuPad)

Theme: Stained Glass

Author/Opus: This is the 186th 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, each of the four 3×3 shaded regions must contain the numbers 1 to 9 without repeats.

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

Thomas Hits the GAS (highlight to view): 1:50, 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

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.