Parity Sweeper Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Like a game of minesweeper, the circled even or odd clues in this puzzle indicate how many touching cells contain even or odd numbers.

Parity Sweeper Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 58th 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). A circled number indicates the total count of surrounding cells (up to 8) that must have the same parity (i.e., odd or even) as the circled number. For example, if a 3 is circled, there must be exactly 3 odd numbers in the surrounding 8 cells and the other 5 cells must contain even numbers.

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

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 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.

Anti-Knight Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Clover has galloped in here (probably with coconuts, not with real horses) with an Anti-Knight Sudoku to kick off the weekend.

Anti-Knight Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 57th 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, numbers cannot repeat in any cells separated by a chess knight’s move.

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

Thomas Hits the GAS (highlight to view): 1:49, 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.

Arrow Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Déjà vu with another Genuinely Approachable Arrow Sudoku, this time from clover! As an extra challenge, can you follow a clockwise path around this grid as the arrows suggest?

Arrow Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 56th puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Arrow 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 arrow shapes are in the grid; the sum of the numbers along the path of each arrow must equal the number in the circled cell. Numbers can repeat within an arrow shape.

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

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 more Arrow Sudoku. If you are new to this puzzle type, here are our easiest Arrow Sudoku to get started on. More Arrow 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.

Renban Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
For our 100th GAS post on GMPuzzles, Clover! has a great puzzle featuring Renban lines marking out consecutive sets of numbers along their paths. With no bends in the lines, can you get straight to the answer?

Renban Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 55th 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). Numbers along each line must form a non-repeating consecutive set, in any order. (For example, a 4-cell Renban line could be 4352, but not 5679 or 2312.)

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

Thomas Hits the GAS (highlight to view): 1:59, 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.

German Whispers Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
With all the similar whispers going in different directions, will you be able to find the approachable logic to reach the unique solution?

German Whispers Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 54th 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). Adjacent numbers connected by a green line must differ by at least 5.

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

Thomas Hits the GAS (highlight to view): 1:49, 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.

Palindrome Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Can you go back and forth to place all the logic in this Palindrome Sudoku puzzle by clover!?

Palindrome Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 53rd 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).

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

Thomas Hits the GAS (highlight to view): 2:13, 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 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.

Thermo-Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
All the thermometers go to the right in this puzzle; will you be able to find the right solution quickly?

Thermo-Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 52nd puzzle from Clover, 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 (🎩🥳): 6:00; One party hat (🥳): 11:00. All other solvers earn a 🦕: mercurial Mercuriceratops.

Thomas Hits the GAS (highlight to view): 0:58, 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 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.

Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
We’re starting September with some fresh GAS (now that the August Guessing Game is over). Today we’re back to regular Sudoku with a great classic by clover!

Sudoku by clover!

PDF

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

Author/Opus: This is the 51st 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.

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 5:30; One party hat (🥳): 10:00. All other solvers earn a 🦕: traditional Triceratops.

Thomas Hits the GAS (highlight to view): 1:54, 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.

Killer (Hidden Arrows) Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
There is something extra going on to organize the numbers in each Killer cage in this “Hidden Arrows” variation by clover! Can you calculate all the numbers to get to the solution?

Killer Hidden Arrows Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 50th 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 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. Each cage has a hidden arrow (as in Arrow Sudoku) with a circled cell at one end of the cage and an arrow path that travels through edge-adjacent cells through all other cells in the cage. The value in the circled cell must equal the sum of all other numbers in the cage (as would be on the arrow’s path).
(For example, in this puzzle, either R4C3 = R4C4+R4C5 or R4C5 = R4C4+R4C3.)

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

Thomas Hits the GAS (highlight to view): 2:01, 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.

Star Product Sudoku by clover!

(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Earn some stars by doing some extra product-focused arithmetic in this puzzle to crack into the Sudoku steps.

Star Product Sudoku by clover!

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 49th 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, in each row or column with a given clue outside the grid, the value of that clue is the product of all numbers in the starred cells in that row or column.

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

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