Killer Sudoku by Can Erturan
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This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

or solve online (using our beta test of Penpa-Edit tools)
Theme: Orderly Triplets
Author/Opus: This is the 136th puzzle from our contributing puzzlemaster Ashish Kumar.
Rules: Standard Sudoku rules. 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.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:45, Expert = 3:30
Solution: PDF and solving animation.
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 Week 10 Discussion post on the GMPuzzles Discord.
You must be logged in with the appropriate subscription to view this content.
This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

or solve online (using our beta test of Penpa-Edit tools)
Theme: Checkered
Author/Opus: This is the 526th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Consecutive Pairs Sudoku rules. (If a gray circle is given between two adjacent cells, then the two numbers in those cells must be consecutive. Note not all gray circles are given; adjacent cells without a circle may contain either consecutive numbers or nonconsecutive numbers.)
Difficulty: 1 star
Time Standards (highlight to view): Grandmaster = 0:30, Master = 0:45, Expert = 1:30
Solution: PDF and solving animation.
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 Week 10 Discussion post on the GMPuzzles Discord.
You must be logged in with the appropriate subscription to view this content.
This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

or solve online (using our beta test of Penpa-Edit tools)
Theme: Rectangles
Author/Opus: This is the 502nd puzzle from our managing editor Serkan Yürekli.
Rules: Standard Sudoku rules.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00
Solution: PDF and solving animation.
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 Week 10 Discussion post on the GMPuzzles Discord.
You must be logged in with the appropriate subscription to view this content.
This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

or solve online (using our beta test of Penpa-Edit tools)
Theme: Four i’s
Author/Opus: This is the 53rd puzzle from our contributing puzzlemaster Takeya Saikachi.
Rules: Standard Even/Odd Sudoku rules (i.e., cells with a square contain an even digit; cells with a circle contain an odd digit).
Estimated Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 0:45, Master = 1:15, Expert = 2:30
Solution: PDF and solving animation.
Note: Follow this link for more Even/Odd Sudoku puzzles. If you are new to this puzzle type, here are our easiest Even/Odd Sudoku to get started on. More Even/Odd Sudoku 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 Week 10 Discussion post on the GMPuzzles Discord.
You must be logged in with the appropriate subscription to view this content.
This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

or solve online (using our beta test of Penpa-Edit tools)
Theme: Cycle
Author/Opus: This is the 501st puzzle from our managing editor Serkan Yürekli.
Rules: Standard Sudoku rules.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00
Solution: PDF and solving animation.
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 Week 10 Discussion post on the GMPuzzles Discord.