or solve online (using our beta test of Penpa-Edit tools)
(Thanks to FoxFireX for sharing an observation on this Latin phrase as being perfectly suited for a sudoku. While implemented differently here, FoxFireX will get a prize at the next leaderboard update for forecasting the future.)
or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 538th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Sudoku rules.
Time Standards (highlight to view): Grandmaster = 3:30, Master = 6:30, Expert = 13:00
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 The Twelve Days of Sudoku Discussion post on the GMPuzzles Discord.
Note 3: Please check lesson notes from Dr. Sudoku.
or solve online (using our beta test of Penpa-Edit tools)
Theme: One Small Step 4 2-getherness, One Giant Leap 2 4-get
Author/Opus: This is the 537th (A), 537th (B) puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Sudoku rules.
Time Standards (highlight to view): Grandmaster = 11:00, Master = 17:00, Expert = 34:00
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 The Twelve Days of Sudoku Discussion post on the GMPuzzles Discord.
Note 3: Please check lesson notes from Dr. Sudoku.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Forty-five
Author/Opus: This is the 536th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: In this puzzle, your job is to place a number into every empty box so that each row across, each column down, and each small 9-box square within the large square (there are 9 of these) will contain each number from 1 through 9. Remember that no number may appear more than once in any row across, any column down, or within any small 9-box square; this will help you solve the puzzle.
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:45, Expert = 3:30
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 The Twelve Days of Sudoku Discussion post on the GMPuzzles Discord.
Note 3: Please check lesson notes from Dr. Sudoku.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Hand-wrapped Gift
Author/Opus: This is the 535th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Sudoku rules.
Time Standards (highlight to view): Grandmaster = 2:00, Master = 4:00, Expert = 8:00
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 The Twelve Days of Sudoku Discussion post on the GMPuzzles Discord.
Note 3: Please check lesson notes from Dr. Sudoku.
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; use tab to alternate between Sudoku = big entries and Number candidate = small entries in the corners of cells.)
Author/Opus: This is the 505th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Tight Fit Sudoku rules. Remember, the smaller number goes above the larger number in all slashed cells. The range of this puzzle is 1-9.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:45, Expert = 3:30
Solution: PDF and solving animation.
Note: Follow this link for other Tight Fit Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Tight Fit Sudoku to get started on. More Tight Fit 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 12 Discussion post on the GMPuzzles Discord.
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; use tab to alternate between Sudoku number entry mode and a shading mode to manage the shape inventory.)
Theme: Triominoes
Author/Opus: This is the 137th puzzle from our contributing puzzlemaster Ashish Kumar.
Rules: Standard Shape Sudoku rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:00, Expert = 4:00
Solution: PDF and solving animation.
Note: Follow this link for other Shape Sudoku. More Shape Sudoku are in Masterpiece Sudoku Mix 8. Also, visit this page to purchase all of the puzzles from the 16th World Sudoku Championship including some Shape 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.
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 digits in each cage must equal the value given in the upper-left corner of that cage. Digits 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.
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.
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.